diff --git a/.gitattributes b/.gitattributes
index bd18720e..da52d986 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -3,3 +3,4 @@
 # Windows checkouts with autocrlf.
 *.js text eol=lf
 *.mjs text eol=lf
+*.ts text eol=lf
diff --git a/.github/workflows/_build-docs-images.yml b/.github/workflows/_build-docs-images.yml
index 8cb017ef..579df74a 100644
--- a/.github/workflows/_build-docs-images.yml
+++ b/.github/workflows/_build-docs-images.yml
@@ -73,6 +73,8 @@ jobs:
         with:
           toolchain: 1.97.0
 
+      - name: Install JS build toolchain
+        run: npm ci
       - name: Verify committed render client
         run: node js/build.mjs --check
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1bba6fb7..c4eefa83 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -55,6 +55,8 @@ jobs:
         with:
           node-version: "22"
 
+      - name: Install JS build toolchain
+        run: npm ci
       - name: Verify committed JS bundles are fresh
         run: node js/build.mjs --check
 
@@ -334,6 +336,9 @@ jobs:
         if: matrix.browser || matrix.build_js
         with:
           node-version: "22"
+      - name: Install JS build toolchain
+        if: matrix.build_js
+        run: npm ci
       - name: Build native core
         if: matrix.xy
         run: cargo build --release
@@ -402,6 +407,8 @@ jobs:
       - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           node-version: "22"
+      - name: Install JS build toolchain
+        run: npm ci
       - name: Build core + JS client
         run: |
           node js/build.mjs
@@ -548,6 +555,8 @@ jobs:
         with:
           node-version: "22"
 
+      - name: Install JS build toolchain
+        run: npm ci
       - name: Verify committed JS bundles are fresh
         run: node js/build.mjs --check
 
@@ -606,6 +615,8 @@ jobs:
         with:
           node-version: "22"
 
+      - name: Install JS build toolchain
+        run: npm ci
       - name: Verify committed JS bundles are fresh
         run: node js/build.mjs --check
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index b0ef619d..a802593d 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -68,6 +68,8 @@ jobs:
       - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           node-version: "22"
+      - name: Install JS build toolchain
+        run: npm ci
       - name: Verify committed JS bundles are fresh
         run: node js/build.mjs --check
       - name: Build JS client
@@ -145,6 +147,8 @@ jobs:
         with:
           # Pyodide 0.29.x / pyodide_2025_0 ABI compiler version.
           version: "4.0.9"
+      - name: Install JS build toolchain
+        run: npm ci
       - name: Verify committed JS bundles are fresh
         run: node js/build.mjs --check
       - name: Build JS client
@@ -199,6 +203,8 @@ jobs:
       # user's machine if they install from sdist and have a toolchain. There is
       # no fallback: without a toolchain the compute layer raises a clear
       # ImportError on first use (hatch_build.py). Wheels are the normal path.
+      - name: Install JS build toolchain
+        run: npm ci
       - name: Verify committed JS bundles are fresh
         run: node js/build.mjs --check
       - name: Build sdist
diff --git a/CLAUDE.md b/CLAUDE.md
index ccd66108..b6a759a0 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -48,10 +48,15 @@ instead of treating the implementation alone as authoritative.
   package at app compile (no second copy to drift), and the adapter stays
   out of the root `xy` sdist (`scripts/verify_sdist.py` enforces it).
   Tests: `tests/reflex_adapter/` (skip unless reflex installed).
-- `js/src/*.js` — the render client as ordered parts (concat order in
-  `js/build.mjs`; exports live only in `60_entries.js`), one dependency-free ES
-  module. **No npm packages.** `node js/build.mjs` copies it to
-  `python/xy/static/` (committed artifacts).
+- `js/src/*.ts` — the render client as TypeScript ES modules (one module per
+  former concat part; `60_entries.ts` is the entry and the only public export
+  surface). `node js/build.mjs` typechecks (`js/tsconfig.json`), lints the
+  shaders, and has vite bundle + minify into `python/xy/static/index.js`
+  (anywidget ESM) and `standalone.js` (IIFE, `window.xy`) — committed,
+  minified artifacts; the minified bundles are what ships to the client.
+  npm devDependencies (vite/typescript/playwright, pinned in
+  `package-lock.json`) are build/test-time only — the shipped client stays
+  runtime-dependency-free. Run `npm ci` once per checkout.
 - `tests/`, `scripts/bench.py` (§12 harness), `scripts/smoke_render.py`
   (headless Chromium pixel probe).
 
@@ -59,7 +64,8 @@ instead of treating the implementation alone as authoritative.
 
 ```bash
 cargo test && cargo build --release   # core
-node js/build.mjs                     # regenerate static/ after JS edits
+npm ci                                # once per checkout: vite + tsc toolchain
+node js/build.mjs                     # typecheck + regenerate minified static/ after JS edits
 python3 scripts/abi_smoke.py          # C-ABI seam, stdlib only (no PyPI needed)
 python3 scripts/render_smoke_nonumpy.py  # WebGL2 render path in headless Chromium
 uv venv && uv pip install -e ".[dev]"
diff --git a/js/build.mjs b/js/build.mjs
index a62257b6..282e8fee 100644
--- a/js/build.mjs
+++ b/js/build.mjs
@@ -1,41 +1,41 @@
 #!/usr/bin/env node
-// Dependency-free "bundler": the client is hand-written ES-module source split
-// into ordered parts under src/ (plain script content; exports live only in the
-// final part). Building = concatenating them (anywidget ESM) and wrapping the
-// export-free body (standalone IIFE for static HTML export). No npm, no
-// registry, no supply chain — deliberate (§33).
-import { mkdirSync, readFileSync, writeFileSync } from "node:fs";
+// Build the render client. The source is TypeScript ES modules under src/
+// (one module per former concat part; import order replaces concat order).
+// Vite (rolldown + oxc) bundles and minifies them into the two committed
+// artifacts in python/xy/static/ — the minified bundles are what ships to the
+// client (§33 amended: vite/typescript are the only, dev-time-only, npm deps):
+//   index.js      — ESM bundle (anywidget `_esm`; named exports + default)
+//   standalone.js — IIFE bundle exposing `window.xy`, inlined by
+//                   `Figure.to_html()` into static HTML exports
+// Steps: tsc typecheck → shader-convention lint → vite build (×2 formats).
+// `--check` rebuilds into a scratch dir and byte-compares against the
+// committed artifacts (the CI freshness gate); it never touches static/.
+import { mkdtempSync, readFileSync, mkdirSync, rmSync } from "node:fs";
+import { tmpdir } from "node:os";
 import { dirname, join } from "node:path";
 import { fileURLToPath } from "node:url";
-
-// Concatenation order is load-bearing (const/class definitions before use).
-const PARTS = [
-  "00_header.js", //     doc header, "use strict", PROTOCOL version
-  "10_colormaps.js", //  colormap stops + LUT builder (§36 CVD-safe defaults)
-  "20_theme.js", //      CSS color resolution + --chart-* tokens (§36)
-  "30_ticks.js", //      f64 tick/format math — never through f32 (§16)
-  "40_gl.js", //         GL helpers + all shaders (marks, pick, density, line)
-  "45_lod.js", //        chart-agnostic tier LOD: drill lifecycle, fades, cache (§5/§28)
-  "46_worker.js", //     standalone density re-bin worker (blob URL, off-main-thread)
-  "50_chartview.js", //  ChartView core: layout, GL, marks, draw, chrome, pick
-  "51_annotations.js", // + annotation canvas overlay (prototype augmentation)
-  "52_tooltip.js", //    + hover->row tooltip resolution + DOM
-  "53_interaction.js", //+ pointer/drag/wheel, selection, modebar, view anim
-  "54_kernel.js", //     + kernel comm: view-requests, append, drill (§16)
-  "55_marks.js", //      MARK_KINDS: per-chart-kind build/draw dispatch registry
-  "56_animation.js", //  declarative entrance/data transition controller
-  "57_viewstate.js", //  + durable view state, history, axis bands, hover payload
-  "60_entries.js", //    anywidget + standalone entry points, export tail
-];
+import { spawnSync } from "node:child_process";
 
 const here = dirname(fileURLToPath(import.meta.url));
+const root = join(here, "..");
 const checkOnly = process.argv.includes("--check");
-// Normalize CRLF: a Windows checkout with autocrlf otherwise mixes CRLF part
-// content with the wrapper's literal \n, making the freshness check fail on
-// exactly one platform. Build output is LF everywhere, deterministically.
-const readText = (p) => readFileSync(p, "utf8").replace(/\r\n/g, "\n");
-const src = PARTS.map((p) => readText(join(here, "src", p))).join("");
-const outDir = join(here, "..", "python", "xy", "static");
+const staticDir = join(root, "python", "xy", "static");
+
+// Typecheck first: a bundle must never be built from source tsc rejects
+// (esbuild strips types without checking them, so this is the only gate).
+{
+  // Invoke tsc through the current node binary rather than the .bin shim:
+  // on Windows the shim is tsc.cmd, which spawnSync cannot exec (ENOENT).
+  const tsc = join(root, "node_modules", "typescript", "bin", "tsc");
+  const res = spawnSync(process.execPath, [tsc, "-p", join(here, "tsconfig.json")], {
+    stdio: "inherit",
+  });
+  if (res.error) {
+    console.error(`tsc failed to start (${res.error.message}); run \`npm install\` first`);
+    process.exit(1);
+  }
+  if (res.status !== 0) process.exit(res.status ?? 1);
+}
 
 // Shader convention lint (renderer audit R5). The conventions are load-bearing:
 // a non-highp fragment default already caused one precision-mismatch hunt
@@ -46,7 +46,7 @@ const outDir = join(here, "..", "python", "xy", "static");
   // GRID_VS is the fullscreen-quad vertex stage shared by density + heatmap:
   // it maps via u_view (data-space window), not per-vertex u_*map attributes.
   const VIEWMAP_EXEMPT = new Set(["GRID_VS"]);
-  const glSrc = readText(join(here, "src", "40_gl.js"));
+  const glSrc = readFileSync(join(here, "src", "40_gl.ts"), "utf8");
   const errs = [];
   let shaders = 0;
   for (const m of glSrc.matchAll(/const (\w+_(?:VS|FS)) = `([^`]*)`/g)) {
@@ -79,188 +79,78 @@ const outDir = join(here, "..", "python", "xy", "static");
   }
 }
 
-// Compact the shipped bundles: strip comments, leading indentation, and blank
-// lines — nothing else. Not a renaming minifier; every code token survives
-// verbatim (the client-security test greps exact source lines in the built
-// bundles). String/template/regex-literal content is untouched: GLSL shaders
-// live in template literals and keep their own comments. Line structure is
-// preserved (a removed multi-line block comment leaves one newline), so ASI
-// behavior cannot change. Payoff: every `Figure.to_html()` inlines the
-// standalone bundle, and the anywidget ESM parses on first chart paint — the
-// small-data TTFR path (audit small-data #3).
-function compact(source) {
-  const n = source.length;
-  let out = "";
-  let i = 0;
-  // Frame stack tracks template-literal nesting: `${` pushes a code frame,
-  // its matching `}` pops back into the template. `brace` counts plain
-  // braces inside a code frame so object literals don't pop early.
-  const frames = [{ mode: "code", brace: 0 }];
-  let atLineStart = true;
-  const emit = (ch) => {
-    out += ch;
-    atLineStart = ch === "\n";
-  };
-  while (i < n) {
-    const top = frames[frames.length - 1];
-    const c = source[i];
-    const c2 = source[i + 1];
-    if (top.mode === "template") {
-      if (c === "\\") {
-        emit(c);
-        if (i + 1 < n) emit(source[i + 1]);
-        i += 2;
-        continue;
-      }
-      if (c === "`") {
-        emit(c);
-        frames.pop();
-        i++;
-        continue;
-      }
-      if (c === "$" && c2 === "{") {
-        emit(c);
-        emit(c2);
-        frames.push({ mode: "code", brace: 0 });
-        i += 2;
-        continue;
-      }
-      emit(c);
-      i++;
-      continue;
-    }
-    // mode === "code"
-    if (atLineStart && (c === " " || c === "\t")) {
-      i++; // strip indentation
-      continue;
-    }
-    if (c === "\n") {
-      // Removing a trailing line comment can leave the separating space that
-      // preceded it. Do not ship that whitespace into every standalone HTML
-      // artifact (and keep generated files clean under `git diff --check`).
-      while (out.endsWith(" ") || out.endsWith("\t")) out = out.slice(0, -1);
-      if (!atLineStart) emit("\n"); // collapse blank lines
-      i++;
-      continue;
-    }
-    if (c === "/" && c2 === "/") {
-      while (i < n && source[i] !== "\n") i++;
-      continue; // the newline itself is handled above
-    }
-    if (c === "/" && c2 === "*") {
-      const end = source.indexOf("*/", i + 2);
-      const closed = end >= 0 ? end + 2 : n;
-      const removed = source.slice(i, closed);
-      // Keep separation so `a/* */b` can't fuse tokens; keep a newline if the
-      // comment spanned lines so the following line still starts a line.
-      emit(removed.includes("\n") ? "\n" : " ");
-      i = closed;
-      continue;
-    }
-    if (c === "'" || c === '"') {
-      emit(c);
-      i++;
-      while (i < n) {
-        const s = source[i];
-        emit(s);
-        i++;
-        if (s === "\\") {
-          if (i < n) {
-            emit(source[i]);
-            i++;
-          }
-          continue;
-        }
-        if (s === c) break;
-      }
-      continue;
-    }
-    if (c === "`") {
-      emit(c);
-      frames.push({ mode: "template" });
-      i++;
-      continue;
-    }
-    if (c === "{") {
-      top.brace++;
-      emit(c);
-      i++;
-      continue;
-    }
-    if (c === "}") {
-      if (top.brace > 0) {
-        top.brace--;
-        emit(c);
-      } else if (frames.length > 1) {
-        frames.pop(); // close of a ${...} interpolation
-        emit(c);
-      } else {
-        emit(c);
-      }
-      i++;
-      continue;
-    }
-    emit(c);
-    i++;
-  }
-  return out;
-}
+const { build } = await import("vite");
 
-// standalone build: strip the export tail, expose a window global.
-const marker = "// ---- exports ----";
-const cut = src.indexOf(marker);
-if (cut < 0) throw new Error("export marker not found in 60_entries.js");
-// The marker must own its whole line: exportTail is emitted raw into index.js,
-// so any text trailing the marker on its line would land as bare (invalid) code
-// in the ESM bundle. Split at the line boundary and reject a non-empty tail.
-const markerLineEnd = src.indexOf("\n", cut);
-const trailing = src.slice(cut + marker.length, markerLineEnd < 0 ? undefined : markerLineEnd);
-if (trailing.trim()) {
-  throw new Error(`text after "${marker}" would leak into index.js: "${trailing.trim()}"`);
+/** Build both bundles into outDir. One entry, two formats: the ESM build keeps
+ * 60_entries' export shape verbatim; the IIFE build assigns the same namespace
+ * to a top-level `var xy`, which is `window.xy` when the bundle runs as the
+ * classic inline <script> that `Figure.to_html()` emits. */
+async function buildBundles(outDir) {
+  const formats = [
+    { format: "es", fileName: "index.js" },
+    { format: "iife", fileName: "standalone.js" },
+  ];
+  for (const { format, fileName } of formats) {
+    await build({
+      configFile: false,
+      root: here,
+      logLevel: "warn",
+      clearScreen: false,
+      build: {
+        outDir,
+        emptyOutDir: false,
+        copyPublicDir: false,
+        target: "es2022",
+        minify: true, // oxc, vite 8's built-in minifier
+        // The committed artifacts are byte-compared by --check; keep the
+        // build free of environment-dependent output (no gzip size probe).
+        reportCompressedSize: false,
+        // Not `build.lib`: lib mode keeps whitespace in ES output by design;
+        // these artifacts ship inside notebooks/HTML, so both formats minify
+        // fully. The entry's export shape is preserved verbatim.
+        rollupOptions: {
+          input: join(here, "src", "60_entries.ts"),
+          preserveEntrySignatures: "strict",
+          output: {
+            format,
+            entryFileNames: fileName,
+            name: "xy",
+            exports: "named",
+          },
+        },
+      },
+    });
+  }
 }
-const body = compact(src.slice(0, cut));
-// Parse-validate the compacted body: a compactor bug must fail the build, not
-// ship a corrupted client. new Function parses (without executing) everything
-// but import/export syntax — the body is export-free by construction.
-new Function(body);
-const exportTail = markerLineEnd < 0 ? "" : src.slice(markerLineEnd + 1);
-const iife = `(() => {\n${body}\nwindow.xy = { render, renderStandalone, decodeFrame, ChartView, MARK_KINDS, markOf };\n})();\n`;
-new Function(iife);
-
-// The Reflex adapter serves this same ESM client — but from the *installed*
-// xy package (reflex_xy links xy/static/index.js at app compile), so
-// there is no second copy to drift. One renderer for notebooks, static
-// export, and Reflex.
-const esm = body + "\n" + exportTail.trimStart();
-const outputs = [
-  [outDir, "index.js", esm],
-  [outDir, "standalone.js", iife],
-];
 
 if (checkOnly) {
-  const stale = [];
-  for (const [dir, name, expected] of outputs) {
-    const path = join(dir, name);
-    let actual = null;
-    try {
-      actual = readText(path);
-    } catch {
-      stale.push(`${name} missing`);
-      continue;
+  const scratch = mkdtempSync(join(tmpdir(), "xy-js-check-"));
+  try {
+    await buildBundles(scratch);
+    const stale = [];
+    for (const name of ["index.js", "standalone.js"]) {
+      let actual = null;
+      try {
+        actual = readFileSync(join(staticDir, name), "utf8");
+      } catch {
+        stale.push(`${name} missing`);
+        continue;
+      }
+      const expected = readFileSync(join(scratch, name), "utf8");
+      if (actual !== expected) stale.push(`${name} is stale`);
     }
-    if (actual !== expected) stale.push(`${name} is stale`);
-  }
-  if (stale.length) {
-    console.error(
-      `static JS bundle check failed: ${stale.join(", ")}. Run \`node js/build.mjs\` and commit python/xy/static/*.js.`
-    );
-    process.exit(1);
+    if (stale.length) {
+      console.error(
+        `static JS bundle check failed: ${stale.join(", ")}. Run \`node js/build.mjs\` and commit python/xy/static/*.js.`
+      );
+      process.exit(1);
+    }
+    console.log("static JS bundles are fresh");
+  } finally {
+    rmSync(scratch, { recursive: true, force: true });
   }
-  console.log(`static JS bundles are fresh (${PARTS.length} parts)`);
 } else {
-  for (const [dir, name, data] of outputs) {
-    mkdirSync(dir, { recursive: true });
-    writeFileSync(join(dir, name), data);
-  }
-  console.log(`built static/index.js and static/standalone.js from ${PARTS.length} parts`);
+  mkdirSync(staticDir, { recursive: true });
+  await buildBundles(staticDir);
+  console.log("built minified static/index.js and static/standalone.js with vite");
 }
diff --git a/js/src/00_header.js b/js/src/00_header.ts
similarity index 93%
rename from js/src/00_header.js
rename to js/src/00_header.ts
index fb2fa53c..b6efab55 100644
--- a/js/src/00_header.js
+++ b/js/src/00_header.ts
@@ -20,9 +20,7 @@
  * title, axis tick labels, legend, tooltip (§7).
  */
 
-"use strict";
-
-const PROTOCOL = 4;
+export const PROTOCOL = 4;
 
 // HTTP binary frame v1 (spec/design/wire-protocol.md §7; Python side in
 // python/xy/_framing.py). The chart spec's PROTOCOL
@@ -39,7 +37,7 @@ const XY_FRAME_DEFAULT_LIMITS = Object.freeze({
   maxBufferBytes: 256 * 1024 * 1024,
 });
 
-function xyByteSpan(value, label = "buffer") {
+export function xyByteSpan(value, label = "buffer") {
   if (value instanceof ArrayBuffer) return new Uint8Array(value);
   if (ArrayBuffer.isView(value)) {
     return new Uint8Array(value.buffer, value.byteOffset, value.byteLength);
@@ -47,6 +45,14 @@ function xyByteSpan(value, label = "buffer") {
   throw new TypeError(`${label} must be an ArrayBuffer or ArrayBuffer view`);
 }
 
+export function bytesToSpan(b) {
+  const span = xyByteSpan(b, "chart payload");
+  // anywidget/third-party callers may hand us an oddly-offset DataView. Keep
+  // the normal aligned path zero-copy; preserve compatibility with one narrow
+  // view-sized copy only when f32 columns could not be constructed in place.
+  return span.byteOffset % 4 === 0 ? span : new Uint8Array(span);
+}
+
 function xyFrameLimit(limits, name) {
   const fallback = XY_FRAME_DEFAULT_LIMITS[name];
   const value = limits && limits[name] != null ? limits[name] : fallback;
@@ -81,7 +87,7 @@ function xyRequireZeroPadding(bytes, start, end, label) {
  * not copied. Response.arrayBuffer() supplies an aligned base. Passing an
  * unaligned subview is rejected rather than silently slicing the whole frame.
  */
-function decodeFrame(body, limits = null) {
+export function decodeFrame(body, limits = null) {
   const bytes = xyByteSpan(body, "frame body");
   const maxFrameBytes = xyFrameLimit(limits, "maxFrameBytes");
   const maxMetadataBytes = xyFrameLimit(limits, "maxMetadataBytes");
diff --git a/js/src/10_colormaps.js b/js/src/10_colormaps.ts
similarity index 98%
rename from js/src/10_colormaps.js
rename to js/src/10_colormaps.ts
index cc9dfe97..7a93f964 100644
--- a/js/src/10_colormaps.js
+++ b/js/src/10_colormaps.ts
@@ -26,14 +26,14 @@ const COLORMAP_STOPS = {
   spectral: [[158, 1, 66], [212, 61, 79], [244, 109, 67], [253, 173, 96], [254, 224, 139], [255, 255, 190], [230, 245, 152], [170, 220, 164], [102, 194, 165], [51, 135, 188], [94, 79, 162]],
 };
 
-function colormapStops(name) {
+export function colormapStops(name) {
   const reversed = typeof name === "string" && name.endsWith("_r");
   const base = reversed ? name.slice(0, -2) : name;
   const stops = COLORMAP_STOPS[base] || COLORMAP_STOPS.viridis;
   return reversed ? [...stops].reverse() : stops;
 }
 
-function buildLutData(name) {
+export function buildLutData(name) {
   const stops = colormapStops(name);
   const N = 256;
   const data = new Uint8Array(N * 4);
diff --git a/js/src/20_theme.js b/js/src/20_theme.ts
similarity index 97%
rename from js/src/20_theme.js
rename to js/src/20_theme.ts
index 1afd9ba2..32f3bf8a 100644
--- a/js/src/20_theme.js
+++ b/js/src/20_theme.ts
@@ -21,7 +21,7 @@ function cssToken(el, name) {
   return v || null;
 }
 
-function hexColor(hex) {
+export function hexColor(hex) {
   const h = hex.replace("#", "");
   if (!/^(?:[0-9a-fA-F]{3}|[0-9a-fA-F]{4}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})$/.test(h)) {
     return null;
@@ -32,7 +32,7 @@ function hexColor(hex) {
   return [((n >> 16) & 255) / 255, ((n >> 8) & 255) / 255, (n & 255) / 255, a];
 }
 
-function parseColor(host, c, fallback) {
+export function parseColor(host, c, fallback) {
   if (!c) return fallback;
   if (typeof c !== "string") return fallback;
   const expr = c.trim();
@@ -48,7 +48,7 @@ function parseColor(host, c, fallback) {
   return fallback;
 }
 
-function readTheme(root) {
+export function readTheme(root) {
   const text = resolveCssColor(root, "currentColor") || [0.2, 0.2, 0.2, 1];
   const withA = (c, a) => [c[0], c[1], c[2], a];
   const tok = (name) => {
@@ -63,7 +63,7 @@ function readTheme(root) {
   };
 }
 
-function cssColor([r, g, b, a]) {
+export function cssColor([r, g, b, a]: any) {
   return `rgba(${Math.round(r * 255)},${Math.round(g * 255)},${Math.round(b * 255)},${a})`;
 }
 
@@ -84,7 +84,7 @@ function cssColor([r, g, b, a]) {
 // light icons on white; the override keeps the toolbar readable in both modes.
 // These are still zero-specificity :where() rules, so a host --chart-modebar-*
 // token or utility class overrides them in either scheme.
-const XY_CHROME_CSS = `
+export const XY_CHROME_CSS = `
 @layer base{
 :where(.xy [data-xy-slot="title"]){text-align:center;font-size:14px;font-weight:600;color:var(--chart-text,inherit)}
 :where(.xy [data-xy-slot="tooltip"]){max-width:calc(100% - 8px);max-height:calc(100% - 8px);box-sizing:border-box;white-space:normal;overflow-wrap:anywhere;overflow:auto;background:var(--chart-tooltip-bg,rgba(20,24,33,.92));color:var(--chart-tooltip-text,#fff);padding:5px 8px;border-radius:4px;font-size:11px;line-height:1.35;box-shadow:0 2px 8px rgba(0,0,0,.3)}
@@ -141,7 +141,7 @@ const XY_CHROME_CSS = `
 
 // Inject XY_CHROME_CSS once per DOM root (document head or shadow root), so
 // multiple charts on one page share a single stylesheet.
-function ensureChromeStylesheet(node) {
+export function ensureChromeStylesheet(node) {
   let root = node && node.getRootNode ? node.getRootNode() : document;
   const isShadow = typeof ShadowRoot !== "undefined" && root instanceof ShadowRoot;
   if (!isShadow && !(root instanceof Document)) root = document; // detached subtree
@@ -154,7 +154,7 @@ function ensureChromeStylesheet(node) {
   scope.appendChild(style);
 }
 
-function safeCssPaint(host, expr, fallback = [0.5, 0.5, 0.5, 1]) {
+export function safeCssPaint(host, expr, fallback = [0.5, 0.5, 0.5, 1]) {
   const parsed = parseColor(host, expr, fallback);
   const color = Array.isArray(parsed) && parsed.length >= 4 && parsed.every(Number.isFinite)
     ? parsed
diff --git a/js/src/30_ticks.js b/js/src/30_ticks.ts
similarity index 94%
rename from js/src/30_ticks.js
rename to js/src/30_ticks.ts
index 47dc6cab..b04a5639 100644
--- a/js/src/30_ticks.js
+++ b/js/src/30_ticks.ts
@@ -12,7 +12,7 @@ function niceStep(rough) {
   return 10 * mag;
 }
 
-function linearTicks(lo, hi, target = 6) {
+export function linearTicks(lo, hi, target = 6) {
   if (!Number.isFinite(lo) || !Number.isFinite(hi)) return { ticks: [], step: 1 };
   const a = Math.min(lo, hi);
   const b = Math.max(lo, hi);
@@ -26,7 +26,7 @@ function linearTicks(lo, hi, target = 6) {
   return { ticks: out, step };
 }
 
-function logTicks(lo, hi, target = 6) {
+export function logTicks(lo, hi, target = 6) {
   if (!Number.isFinite(lo) || !Number.isFinite(hi)) return { ticks: [], step: 1 };
   const a = Math.min(lo, hi);
   const b = Math.max(lo, hi);
@@ -52,7 +52,7 @@ function logTicks(lo, hi, target = 6) {
   return { ticks: out, labels: labels.length ? labels : out, step: 1, log: true };
 }
 
-function categoryTicks(lo, hi, categories, target = 6) {
+export function categoryTicks(lo, hi, categories, target = 6) {
   if (!categories || !categories.length) return { ticks: [], step: 1 };
   const start = Math.max(0, Math.ceil(Math.min(lo, hi)));
   const stop = Math.min(categories.length - 1, Math.floor(Math.max(lo, hi)));
@@ -73,7 +73,7 @@ const TIME_STEPS = [
   MS.d, 2 * MS.d, 7 * MS.d, 14 * MS.d,
 ];
 
-function timeTicks(lo, hi, target = 6) {
+export function timeTicks(lo, hi, target = 6) {
   if (!Number.isFinite(lo) || !Number.isFinite(hi)) return { ticks: [], step: MS.d };
   const a = Math.min(lo, hi);
   const b = Math.max(lo, hi);
@@ -126,7 +126,7 @@ function fmtTime(ms, step) {
   return `${pad(d.getUTCMinutes())}:${pad(d.getUTCSeconds())}.${pad(d.getUTCMilliseconds(), 3)}`;
 }
 
-function fmtLinear(v, step) {
+export function fmtLinear(v, step) {
   const av = Math.abs(v);
   if (av >= 1e6 || (av !== 0 && av < 1e-4)) return v.toExponential(1).replace("e+", "e");
   let dec = step ? Math.max(0, Math.ceil(-Math.log10(Math.abs(step)))) : 0;
@@ -137,7 +137,7 @@ function fmtLinear(v, step) {
 // Match Python's default ``:g`` formatting used by the SVG/native colorbar
 // exporters. Explicit ticks are authored values, so their precision must not
 // be inferred from the unrelated automatic tick step for the whole domain.
-function fmtGeneral(v, precision = 6) {
+export function fmtGeneral(v, precision = 6) {
   const value = Number(v);
   if (!Number.isFinite(value)) return String(v);
   if (value === 0) return Object.is(value, -0) ? "-0" : "0";
@@ -155,12 +155,12 @@ function fmtGeneral(v, precision = 6) {
   return text;
 }
 
-function fmtCategory(v, categories) {
+export function fmtCategory(v, categories) {
   const i = Math.round(v);
   return i >= 0 && i < categories.length ? String(categories[i]) : "";
 }
 
-function fmtNumberSpec(v, format) {
+export function fmtNumberSpec(v, format) {
   if (typeof format !== "string" || !Number.isFinite(Number(v))) return null;
   const percent = format.endsWith("%");
   const raw = percent ? format.slice(0, -1) : format;
@@ -199,7 +199,7 @@ function fmtTimeSpec(ms, format) {
   });
 }
 
-function fmtAxis(axis, v, tickStep) {
+export function fmtAxis(axis, v, tickStep) {
   if (axis && axis.kind === "category") return fmtCategory(v, axis.categories || []);
   if (axis && axis.kind === "time") return fmtTimeSpec(v, axis.format) || fmtTime(v, tickStep);
   const formatted = fmtNumberSpec(v, axis && axis.format);
@@ -209,7 +209,7 @@ function fmtAxis(axis, v, tickStep) {
   return formatted || fmtLinear(v, tickStep);
 }
 
-function fmtValue(v, kind) {
+export function fmtValue(v, kind?: any) {
   if (kind === "time_ms") {
     const d = new Date(v);
     return d.toISOString().replace("T", " ").replace(".000Z", "Z");
diff --git a/js/src/40_gl.js b/js/src/40_gl.ts
similarity index 97%
rename from js/src/40_gl.js
rename to js/src/40_gl.ts
index 4c7253c8..eb920bb5 100644
--- a/js/src/40_gl.js
+++ b/js/src/40_gl.ts
@@ -19,7 +19,7 @@ function compile(gl, type, src) {
 // need distinct slots *within* each program; the groups below are disjoint per
 // shader (point: ax/ay + a_*; line/area: ax0..ab1; bar: a_pos/a_v1/a_v0;
 // grid quad: a_corner). WebGL2 guarantees >= 16 attribs; the max used is 15.
-const ATTR_SLOTS = {
+export const ATTR_SLOTS = {
   ax: 0, ay: 1,
   ax0: 0, ax1: 1, ay0: 2, ay1: 3, ax2: 4, ay2: 5, ab0: 4, ab1: 5,
   a_pos: 0, a_v1: 1, a_v0: 2,
@@ -38,7 +38,7 @@ const ATTR_SLOTS = {
   a_rgba: 12, a_style: 13, a_stroke: 14, a_radius: 15,
 };
 
-function makeProgram(gl, vs, fs) {
+export function makeProgram(gl, vs, fs) {
   const p = gl.createProgram();
   const vsh = compile(gl, gl.VERTEX_SHADER, vs);
   const fsh = compile(gl, gl.FRAGMENT_SHADER, fs);
@@ -64,7 +64,7 @@ function makeProgram(gl, vs, fs) {
   return p;
 }
 
-function uniformOf(gl, prog, name) {
+export function uniformOf(gl, prog, name) {
   let loc = prog._u[name];
   if (loc === undefined) {
     loc = gl.getUniformLocation(prog, name);
@@ -99,7 +99,7 @@ float xyViewValue(float coord, int mode) {
 }
 `;
 
-const POINT_VS = `#version 300 es
+export const POINT_VS = `#version 300 es
 in float ax; in float ay; in float a_prevx; in float a_prevy;
 in float a_cval; in float a_sval; in float a_sel; in float a_dval;
 in vec4 a_rgba; in vec4 a_style; in vec4 a_stroke;
@@ -213,7 +213,7 @@ float xyMarkerSdf(vec2 d, int shape) {
   return length(d) - 0.5;                                           // circle
 }`;
 
-const POINT_FS = `#version 300 es
+export const POINT_FS = `#version 300 es
 precision highp float; precision highp int;
 uniform vec4 u_color; uniform int u_colorMode; uniform sampler2D u_lut; uniform float u_opacity;
 uniform sampler2D u_dlut; uniform float u_dblend;
@@ -292,7 +292,7 @@ void main() {
 // and stroked/symbol markers keep POINT_VS/POINT_FS below. Keeping this
 // specialization separate avoids dynamic feature branches and texture state
 // on software GL while producing the same circle SDF and premultiplied color.
-const POINT_SIMPLE_VS = `#version 300 es
+export const POINT_SIMPLE_VS = `#version 300 es
 in float ax; in float ay; in float a_prevx; in float a_prevy;
 uniform vec2 u_xmap; uniform vec2 u_ymap;
 uniform vec2 u_xmeta; uniform vec2 u_ymeta; uniform int u_xmode; uniform int u_ymode;
@@ -306,7 +306,7 @@ void main() {
   gl_PointSize = u_size * u_dpr;
 }`;
 
-const POINT_SIMPLE_FS = `#version 300 es
+export const POINT_SIMPLE_FS = `#version 300 es
 precision highp float;
 uniform vec4 u_color;
 out vec4 outColor;
@@ -329,7 +329,7 @@ void main() {
 // saturated the u8 alpha channel) and wrapped point indices above 2^24; one
 // global id space has neither limit — capacity is 2^31-1 total pickable
 // points (GLSL highp int is signed), far beyond what GPU memory admits.
-const PICK_VS = `#version 300 es
+export const PICK_VS = `#version 300 es
 in float ax; in float ay; in float a_prevx; in float a_prevy; in float a_sval;
 uniform vec2 u_xmap; uniform vec2 u_ymap;
 uniform vec2 u_xmeta; uniform vec2 u_ymeta; uniform int u_xmode; uniform int u_ymode;
@@ -346,7 +346,7 @@ void main() {
   v_id = gl_VertexID;
 }`;
 
-const PICK_FS = `#version 300 es
+export const PICK_FS = `#version 300 es
 precision highp float; precision highp int;
 uniform int u_pick_base;
 flat in int v_id;
@@ -370,7 +370,7 @@ void main() {
 // positioned during pan until the re-bin arrives (§17). The two consumers
 // differ only in their fragment stage (log-density alpha ramp vs byte-
 // quantized heatmap values).
-const GRID_VS = `#version 300 es
+export const GRID_VS = `#version 300 es
 in vec2 a_corner;
 uniform vec4 u_view; // x0,x1,y0,y1
 uniform int u_xmode; uniform int u_ymode;
@@ -383,7 +383,7 @@ void main() {
   v_data = vec2(xyViewValue(x, u_xmode), xyViewValue(y, u_ymode));
 }`;
 
-const DENSITY_FS = `#version 300 es
+export const DENSITY_FS = `#version 300 es
 precision highp float;
 uniform sampler2D u_grid; uniform sampler2D u_lut;
 uniform vec4 u_gridRange; // gx0,gx1,gy0,gy1
@@ -408,7 +408,7 @@ void main() {
 // Heatmap grid: a regular value matrix as one R8 texture. Byte 0 means missing
 // (transparent); bytes 1..255 map back to normalized values [0,1]. Vertex
 // stage is the shared GRID_VS above.
-const HEATMAP_FS = `#version 300 es
+export const HEATMAP_FS = `#version 300 es
 precision highp float;
 uniform sampler2D u_grid; uniform sampler2D u_lut;
 uniform vec4 u_gridRange; // gx0,gx1,gy0,gy1
@@ -434,7 +434,7 @@ void main() {
   outColor = vec4(rgb * u_opacity, u_opacity);
 }`;
 
-const LINE_VS = `#version 300 es
+export const LINE_VS = `#version 300 es
 in float ax0; in float ay0; in float ax1; in float ay1;
 in float a_prevx; in float a_prevy; in float a_prevx1; in float a_prevy1;
 uniform vec2 u_xmap; uniform vec2 u_ymap; uniform vec2 u_res; uniform float u_width;
@@ -472,7 +472,7 @@ void main() {
   v_dash = mix(a_len0, mix(a_len0, a_len1, reveal), c.x);
 }`;
 
-const LINE_FS = `#version 300 es
+export const LINE_FS = `#version 300 es
 precision highp float; precision highp int;
 uniform vec4 u_color; uniform float u_width;
 uniform int u_dashCount; uniform float u_dashArr[8]; uniform float u_dashPeriod;
@@ -506,7 +506,7 @@ void main() {
 // endpoint pairs with per-column axis metas and an optional per-segment LUT
 // color. A separate program keeps the polyline path (LINE_VS/LINE_FS) free of
 // the extra meta uniforms and the sampler on its per-frame draw path.
-const SEGMENT_VS = `#version 300 es
+export const SEGMENT_VS = `#version 300 es
 in float ax0; in float ay0; in float ax1; in float ay1; in float a_cval; in vec4 a_rgba; in vec4 a_style;
 in float a_dash0; in float a_dashDir;
 uniform vec2 u_xmap; uniform vec2 u_ymap; uniform vec2 u_res; uniform float u_width;
@@ -540,7 +540,7 @@ void main() {
   v_rgba = a_rgba; v_style = a_style;
 }`;
 
-const SEGMENT_FS = `#version 300 es
+export const SEGMENT_FS = `#version 300 es
 precision highp float; precision highp int;
 uniform vec4 u_color; uniform float u_width; uniform int u_colorMode; uniform sampler2D u_lut; uniform float u_opacity;
 uniform int u_dashCount; uniform float u_dashArr[8]; uniform float u_dashPeriod;
@@ -571,7 +571,7 @@ void main() {
 
 // Filled triangle meshes: one instance per triangle, with optional scalar LUT
 // color and antialiased barycentric edge strokes.
-const MESH_VS = `#version 300 es
+export const MESH_VS = `#version 300 es
 in float ax0; in float ay0; in float ax1; in float ay1; in float ax2; in float ay2; in float a_cval;
 in vec4 a_rgba; in vec4 a_style; in vec4 a_stroke;
 uniform vec2 u_xmap; uniform vec2 u_ymap;
@@ -596,7 +596,7 @@ void main() {
   v_rgba = a_rgba; v_style = a_style; v_stroke = a_stroke;
 }`;
 
-const MESH_FS = `#version 300 es
+export const MESH_FS = `#version 300 es
 precision highp float; precision highp int;
 uniform vec4 u_color; uniform int u_colorMode; uniform sampler2D u_lut; uniform float u_opacity;
 uniform vec4 u_stroke; uniform float u_strokeWidth; uniform int u_strokeMode; uniform float u_strokeOpacity;
@@ -654,7 +654,7 @@ float xyGradT(float markT, vec2 res) {
 
 // Area: one instanced strip per segment, filling between the top line (y) and a
 // baseline column. Baseline is offset-encoded independently from y.
-const AREA_VS = `#version 300 es
+export const AREA_VS = `#version 300 es
 in float ax0; in float ax1; in float ay0; in float ay1; in float ab0; in float ab1;
 uniform vec2 u_xmap; uniform vec2 u_ymap; uniform vec2 u_bmap;
 uniform vec2 u_xmeta; uniform vec2 u_ymeta; uniform vec2 u_bmeta;
@@ -689,7 +689,7 @@ void main() {
   gl_Position = vec4(mix(x0, x1, c.x), clipY, 0.0, 1.0);
 }`;
 
-const AREA_FS = `#version 300 es
+export const AREA_FS = `#version 300 es
 precision highp float; precision highp int;
 uniform vec4 u_color;
 uniform vec2 u_res;
@@ -712,7 +712,7 @@ void main() {
 // Rectangles: one instanced quad per mark. Geometry columns are left/right and
 // bottom/top in data space, each offset-encoded independently (§4). This is the
 // primitive for histogram, bar/column, waterfall, and later heatmap cells.
-const RECT_VS = `#version 300 es
+export const RECT_VS = `#version 300 es
 in float ax0; in float ax1; in float ay0; in float ay1;
 uniform vec2 u_x0map; uniform vec2 u_x1map; uniform vec2 u_y0map; uniform vec2 u_y1map;
 uniform vec2 u_x0meta; uniform vec2 u_x1meta; uniform vec2 u_y0meta; uniform vec2 u_y1meta;
@@ -748,7 +748,7 @@ void main() {
 // and scalar width. This keeps common bar payloads to two columns instead of
 // four edge columns while preserving the full rectangle primitive for irregular
 // histograms/candles/waterfalls.
-const BAR_VS = `#version 300 es
+export const BAR_VS = `#version 300 es
 in float a_pos; in float a_v0; in float a_v1; in float a_cval;
 in float a_prevx; in float a_prevy; in float a_prevx1;
 in vec4 a_rgba; in vec4 a_style; in vec4 a_stroke; in vec2 a_radius;
@@ -811,7 +811,7 @@ void main() {
 // With radius/stroke/gradient at their defaults this reduces exactly to the
 // old flat-quad output (cover = 1, no SDF sampled), so plain bars stay
 // pixel-identical.
-const RECT_FS = `#version 300 es
+export const RECT_FS = `#version 300 es
 precision highp float; precision highp int;
 uniform vec4 u_color; uniform int u_colorMode; uniform sampler2D u_lut;
 uniform vec2 u_radius; uniform float u_strokeWidth; uniform vec4 u_stroke;
@@ -894,7 +894,7 @@ function xyMonotoneTangents(x, y, n) {
   return m;
 }
 
-function xySmoothResample(x, y, extra, n, maxOut) {
+export function xySmoothResample(x, y, extra, n, maxOut) {
   if (n < 3) return null;
   const sub = Math.max(1, Math.min(16, Math.floor(maxOut / n)));
   if (sub <= 1) return null; // already pixel-dense; identity at pixel scale
diff --git a/js/src/45_lod.js b/js/src/45_lod.ts
similarity index 98%
rename from js/src/45_lod.js
rename to js/src/45_lod.ts
index 37454466..c2cbe561 100644
--- a/js/src/45_lod.js
+++ b/js/src/45_lod.ts
@@ -1,3 +1,5 @@
+import { parseColor } from "./20_theme";
+
 // ---------------------------------------------------------------------------
 
 const LOD_DIRECT_POINT_BUDGET = 200000;
@@ -27,7 +29,7 @@ function lodFade(view, start, duration = 140) {
 // to approximate counts so exposure normalization and re-encodes work
 // unchanged. The final texture is 8-bit log anyway, so the round-trip is
 // visually exact; decode is deterministic (no RNG/time).
-function lodDecodeLogU8(buf, maxVal) {
+export function lodDecodeLogU8(buf, maxVal) {
   const u8 = buf instanceof ArrayBuffer ? new Uint8Array(buf) : new Uint8Array(buf.buffer, buf.byteOffset, buf.byteLength);
   const out = new Float32Array(u8.length);
   const denom = Math.log1p(Math.max(0, maxVal || 0));
@@ -39,13 +41,13 @@ function lodDecodeLogU8(buf, maxVal) {
   return out;
 }
 
-function lodCopyGrid(f32) {
+export function lodCopyGrid(f32) {
   return f32.slice ? f32.slice() : new Float32Array(f32);
 }
 
 // Log tone-mapped grid upload (R8): stable perception across renormalization,
 // and the u_max swings between rebins compress logarithmically (§5/§F6).
-function lodWriteGridTexture(gl, tex, f32, w, h, maxVal) {
+export function lodWriteGridTexture(gl, tex, f32, w, h, maxVal) {
   const data = new Uint8Array(f32.length);
   const denom = Math.log1p(Math.max(0, maxVal || 0));
   if (denom > 0) {
@@ -193,7 +195,7 @@ function lodDensityPinned(g, d) {
     d === g._shownDensity || d === g._homeDensity;
 }
 
-function lodRememberDensity(view, g, d) {
+export function lodRememberDensity(view, g, d) {
   if (!d || !d.tex) return;
   d._stamp = ++view._densityStamp;
   if (!g.densityCache) g.densityCache = [];
@@ -222,7 +224,7 @@ function lodRememberDensity(view, g, d) {
 // The kernel decided this view fits the direct budget and shipped real marks
 // (channels restored). Build/refresh a direct-shaped sibling on the tiered
 // trace; the tier draw uses it until the kernel switches back.
-function lodApplyDrill(view, g, upd, buffers) {
+export function lodApplyDrill(view, g, upd, buffers) {
   const gl = view.gl;
   const fresh = !g.drill; // transition INTO drill vs refresh of a live drill
   let d = g.drill;
@@ -390,7 +392,7 @@ function lodRestoreBrushMask(view, d, xs, ys) {
   view._applySelMask(d, mask);
 }
 
-function lodDropDrill(view, g) {
+export function lodDropDrill(view, g) {
   const d = g.drill;
   if (!d) return;
   const gl = view.gl;
@@ -492,7 +494,7 @@ function lodBeginDrillExitContinuous(view, g) {
 // Apply a kernel "density"-mode update: new grid texture with eased exposure
 // normalization, previous grid kept for the crossfade, source remembered in
 // the per-trace cache.
-function lodApplyDensityUpdate(view, g, upd, buffers) {
+export function lodApplyDensityUpdate(view, g, upd, buffers) {
   lodMarkDrillDying(view, g);
   const d = upd.density;
   const grid = d.enc === "log-u8"
@@ -558,7 +560,7 @@ function lodDrawDensityWithFade(view, g, density, opacityScale = 1) {
 // window; aggregate + fading marks during transitions (drill-in entry fade,
 // dying drill exit fade); aggregate alone otherwise. Never blank, never a
 // hard cut (§5 smooth transitions).
-function lodDrawDensityTier(view, g, x0, x1, y0, y1) {
+export function lodDrawDensityTier(view, g, x0, x1, y0, y1) {
   lodStepNorm(view, g);
   const d = g.drill;
   // Rapid zoom out→in revive: a dying drill whose window still covers the
diff --git a/js/src/46_worker.js b/js/src/46_worker.ts
similarity index 95%
rename from js/src/46_worker.js
rename to js/src/46_worker.ts
index d6c0cdc0..a72c2375 100644
--- a/js/src/46_worker.js
+++ b/js/src/46_worker.ts
@@ -45,13 +45,13 @@ self.onmessage = (e) => {
 };
 `;
 
-function xyCreateRebinWorker() {
+export function xyCreateRebinWorker() {
   try {
     const url = URL.createObjectURL(
       new Blob([XY_REBIN_WORKER_SRC], { type: "application/javascript" })
     );
     const worker = new Worker(url);
-    worker._fcUrl = url; // revoked on terminate (destroy)
+    (worker as any)._fcUrl = url; // revoked on terminate (destroy)
     return worker;
   } catch (e) {
     return null; // no Worker/blob support: keep the stretched overview
diff --git a/js/src/50_chartview.js b/js/src/50_chartview.ts
similarity index 99%
rename from js/src/50_chartview.js
rename to js/src/50_chartview.ts
index cd4b3430..b4697fca 100644
--- a/js/src/50_chartview.js
+++ b/js/src/50_chartview.ts
@@ -1,7 +1,23 @@
+import { PROTOCOL, xyByteSpan } from "./00_header";
+import { buildLutData, colormapStops } from "./10_colormaps";
+import { cssColor, ensureChromeStylesheet, hexColor, parseColor, readTheme, safeCssPaint } from "./20_theme";
+import { categoryTicks, fmtAxis, fmtGeneral, fmtLinear, fmtValue, linearTicks, logTicks, timeTicks } from "./30_ticks";
+import { AREA_FS, AREA_VS, ATTR_SLOTS, BAR_VS, DENSITY_FS, GRID_VS, HEATMAP_FS, LINE_FS, LINE_VS, MESH_FS, MESH_VS, PICK_FS, PICK_VS, POINT_FS, POINT_SIMPLE_FS, POINT_SIMPLE_VS, POINT_VS, RECT_FS, RECT_VS, SEGMENT_FS, SEGMENT_VS, makeProgram, uniformOf, xySmoothResample } from "./40_gl";
+import { lodCopyGrid, lodDecodeLogU8, lodDrawDensityTier, lodRememberDensity, lodWriteGridTexture } from "./45_lod";
+import { markOf } from "./55_marks";
+
 // ---------------------------------------------------------------------------
 // ChartView
 // ---------------------------------------------------------------------------
 
+// ChartView gains methods via prototype augmentation (51–57) and creates
+// instance fields ad hoc throughout its lifecycle; the merged index signature
+// keeps that dynamic surface type-legal until the class is annotated
+// field-by-field.
+export interface ChartView {
+  [key: string]: any;
+}
+
 const MARGIN = { l: 62, r: 14, t: 10, b: 42 };
 const COLORBAR_THICKNESS = 18;
 const COLORBAR_GAP = 24;
@@ -76,7 +92,7 @@ const XY_CONTEXT_GOVERNOR = {
   _crossFrameReady: false,
   _rebalanceScheduled: false,
   budget() {
-    const v = typeof window !== "undefined" ? window.XY_CONTEXT_BUDGET : null;
+    const v = typeof window !== "undefined" ? (window as any).XY_CONTEXT_BUDGET : null;
     // 12 leaves headroom under Chrome's ~16 so host-page GL (maps, editors)
     // does not push chart contexts into browser-side eviction.
     return Number.isFinite(v) && v >= 1 ? Math.floor(v) : 12;
@@ -214,7 +230,7 @@ const XY_CONTEXT_GOVERNOR = {
   // Broadcast this frame's live-context count when it changes (deduped so a
   // burst of releases collapses to one message). `force` re-sends the current
   // count in reply to a peer's hello even when it is unchanged.
-  _announceLive(force) {
+  _announceLive(force = false) {
     if (!this.channel) return;
     const n = this.localLive();
     if (!force && n === this._announcedLive) return;
@@ -310,7 +326,7 @@ function xyInitiallyVisible(el) {
   );
 }
 
-class ChartView {
+export class ChartView {
   constructor(el, spec, buffer, comm) {
     if (spec.protocol !== PROTOCOL) {
       el.textContent =
@@ -413,7 +429,7 @@ class ChartView {
     }
     this.canvas.dataset.xyCtx = "live";
     this.view0 = this._clampView({
-      ranges: Object.fromEntries(Object.entries(this.axes).map(([id, axis]) => [id, [...axis.range]])),
+      ranges: Object.fromEntries(Object.entries(this.axes).map(([id, axis]: any) => [id, [...axis.range]])),
     });
     this.view = this._copyView(this.view0);
     this.dragMode = this._resolveDefaultDragAction();
@@ -486,7 +502,7 @@ class ChartView {
     const marginRight = baseRight + colorbarRightRoom;
     const marginTop = pad ? pad[0] : compact ? 6 : MARGIN.t;
     const marginBottom = (pad ? pad[2] : compact ? 36 : MARGIN.b) + colorbarBottomRoom;
-    const hasBottomAxis = Object.values(this.axes || {}).some((axis) =>
+    const hasBottomAxis = Object.values<any>(this.axes || {}).some((axis: any) =>
       axis && String(axis.id || "").startsWith("x") && axis.side !== "top" &&
       this._axisTickLabelStrategy(axis) !== "none");
     this._bottomAxisRoom = hasBottomAxis ? (compact ? 36 : MARGIN.b) : 0;
@@ -494,13 +510,13 @@ class ChartView {
     // on the bottom. Reserve one shared gutter for every top-side x axis;
     // multiple axes on the same side intentionally overlay until axis offsets
     // become part of the public API (the same rule used by secondary y axes).
-    const topAxisRoom = Object.values(this.axes || {}).some((axis) =>
+    const topAxisRoom = Object.values<any>(this.axes || {}).some((axis: any) =>
       axis && String(axis.id || "").startsWith("x") && axis.side === "top" &&
       this._axisTickLabelStrategy(axis) !== "none")
       ? (compact ? 26 : 32)
       : 0;
     const top = marginTop + (this.spec.title ? (compact ? 26 : 30) : 0) + topAxisRoom;
-    const rightAxes = Object.values(this.axes || {}).filter((axis) =>
+    const rightAxes = Object.values<any>(this.axes || {}).filter((axis: any) =>
       axis && String(axis.id || "").startsWith("y") &&
       axis.side === "right" && this._axisTickLabelStrategy(axis) !== "none");
     // The vertical colorbar shifts right by this room (see _positionColorbar);
@@ -519,7 +535,7 @@ class ChartView {
     const axes = { ...(spec.axes || {}) };
     if (spec.x_axis) axes.x = spec.x_axis;
     if (spec.y_axis) axes.y = spec.y_axis;
-    for (const [id, axis] of Object.entries(axes)) {
+    for (const [id, axis] of Object.entries<any>(axes)) {
       if (axis && typeof axis === "object" && !axis.id) axis.id = id;
     }
     return axes;
@@ -543,7 +559,7 @@ class ChartView {
   }
 
   _copyView(view) {
-    const ranges = {};
+    const ranges: any = {};
     for (const axisId of this._axisIds()) {
       const range = view?.ranges?.[axisId] || this._axis(axisId).range || [0, 1];
       ranges[axisId] = [Number(range[0]), Number(range[1])];
@@ -647,7 +663,7 @@ class ChartView {
     return [Number(r[0]), Number(r[1])];
   }
 
-  _axisTicks(axisId, target) {
+  _axisTicks(axisId, target): any {
     const axis = this._axis(axisId);
     const [lo, hi] = this._axisRange(axisId);
     if (Array.isArray(axis.tick_values)) {
@@ -690,7 +706,7 @@ class ChartView {
     return this.plot.y + (1 - (c - c0) / (c1 - c0)) * this.plot.h;
   }
 
-  _listen(target, type, handler, options) {
+  _listen(target, type, handler, options?: any) {
     target.addEventListener(type, handler, options);
     this._listeners.push({ target, type, handler, options });
     return handler;
@@ -723,7 +739,7 @@ class ChartView {
     }));
   }
 
-  _emitViewChange(source = "view", opts = {}) {
+  _emitViewChange(source = "view", opts: any = {}) {
     if (this._destroyed) return;
     const broadcast = opts.broadcast !== false;
     this._pendingViewEvent = {
@@ -820,7 +836,7 @@ class ChartView {
     this._linkChannel.postMessage({ source: this._linkedSource, selection });
   }
 
-  setView(ranges, opts = {}) {
+  setView(ranges, opts: any = {}) {
     return this._setView({ ranges }, {
       animate: opts.animate === true,
       source: "programmatic",
@@ -830,7 +846,7 @@ class ChartView {
     });
   }
 
-  resetView(opts = {}) {
+  resetView(opts: any = {}) {
     return this._resetView(opts.animate !== false, "reset");
   }
 
@@ -2022,7 +2038,7 @@ class ChartView {
 
   _buildTrace(buffer, t) {
     const gl = this.gl;
-    const g = {
+    const g: any = {
       trace: t,
       tier: t.tier,
       color: [0.3, 0.47, 0.66, 1],
@@ -2191,7 +2207,7 @@ class ChartView {
       return null;
     }
     const trace = this._sampleTraceSpec(parentTrace, sample);
-    const g = {
+    const g: any = {
       trace,
       tier: "sampled",
       xAxis: typeof parentTrace.x_axis === "string" ? parentTrace.x_axis : "x",
@@ -2236,7 +2252,7 @@ class ChartView {
       stroke: sample.stroke,
       channels: sample.channels,
     };
-    const s = {
+    const s: any = {
       trace,
       tier: "sampled",
       xAxis: g.xAxis,
@@ -2559,7 +2575,7 @@ class ChartView {
     const dy = (Number(style.hex_dy) || 0) * (yMeta.scale || 1);
     const ringX = [0, dx / 2, dx / 2, 0, -dx / 2, -dx / 2, 0];
     const ringY = [-dy / 3, -dy / 6, dy / 6, dy / 3, dy / 6, -dy / 6, -dy / 3];
-    const parts = {};
+    const parts: any = {};
     for (const name of ["x0", "x1", "x2", "y0", "y1", "y2"]) parts[name] = new Float32Array(n * 6);
     for (let i = 0; i < n; i++) {
       const px = cx[i], py = cy[i];
@@ -4026,9 +4042,9 @@ class ChartView {
     }
     const xAxis = this._axis("x");
     const yAxis = this._axis("y");
-    const extraXAxes = Object.values(this.axes).filter((axis) =>
+    const extraXAxes = Object.values<any>(this.axes).filter((axis: any) =>
       axis && axis.id !== "x" && String(axis.id || "").startsWith("x"));
-    const extraYAxes = Object.values(this.axes).filter((axis) =>
+    const extraYAxes = Object.values<any>(this.axes).filter((axis: any) =>
       axis && axis.id !== "y" && String(axis.id || "").startsWith("y"));
     const hideX = this._axisTickLabelStrategy(xAxis) === "none";
     const hideY = this._axisTickLabelStrategy(yAxis) === "none";
diff --git a/js/src/51_annotations.js b/js/src/51_annotations.ts
similarity index 99%
rename from js/src/51_annotations.js
rename to js/src/51_annotations.ts
index 09d34452..7d57f6a7 100644
--- a/js/src/51_annotations.js
+++ b/js/src/51_annotations.ts
@@ -1,3 +1,6 @@
+import { safeCssPaint } from "./20_theme";
+import { ChartView } from "./50_chartview";
+
 // ChartView annotation layer (§ chrome): reference lines/zones already draw
 // in _drawChrome; this part owns the 2D-canvas overlay — markers, arrows,
 // shape fills, and collision-nudged labels. Split out of 50_chartview.js;
diff --git a/js/src/52_tooltip.js b/js/src/52_tooltip.ts
similarity index 97%
rename from js/src/52_tooltip.js
rename to js/src/52_tooltip.ts
index a71c4aff..8b5e4643 100644
--- a/js/src/52_tooltip.js
+++ b/js/src/52_tooltip.ts
@@ -1,3 +1,6 @@
+import { fmtCategory, fmtNumberSpec, fmtValue } from "./30_ticks";
+import { ChartView } from "./50_chartview";
+
 // ChartView tooltip resolution: map a hovered vertex back to its source
 // row, denormalize units, and compose the tooltip lines/DOM. Split out of
 // 50_chartview.js; augments the prototype so `this.*` is unchanged.
@@ -26,7 +29,7 @@ Object.assign(ChartView.prototype, {
       // requests made a hover invalidate an in-flight tier_update, freezing
       // the stale tier (found in staff review).
       this._pickSeq = (this._pickSeq || 0) + 1;
-      const req = { type: "pick", seq: this._pickSeq, trace: hit.trace, index: hit.index };
+      const req: any = { type: "pick", seq: this._pickSeq, trace: hit.trace, index: hit.index };
       // Drilled picks name the subset version they hit against; the kernel
       // returns None instead of translating through the wrong subset (§16/§17).
       const hg = hit.g;
@@ -44,7 +47,7 @@ Object.assign(ChartView.prototype, {
     // this with the kernel's exact f64 row (§16).
     const g = hit.g;
     const cpu = g._cpu;
-    const row = { trace: g.trace.id, index: hit.index };
+    const row: any = { trace: g.trace.id, index: hit.index };
     if (hit.heatmap && g.heatmap && g._cpuHeatmap) {
       const h = g.heatmap;
       const { row: heatRow, col } = hit.heatmap;
@@ -288,7 +291,7 @@ Object.assign(ChartView.prototype, {
     this.tooltip.style.top = top + "px";
   },
 
-  _renderTooltip(row, clientX, clientY, options = {}) {
+  _renderTooltip(row, clientX, clientY, options: any = {}) {
     if (!row || this.spec.show_tooltip === false) {
       this._hideTooltip();
       return;
diff --git a/js/src/53_interaction.js b/js/src/53_interaction.ts
similarity index 98%
rename from js/src/53_interaction.js
rename to js/src/53_interaction.ts
index 537a7798..b0f25ed6 100644
--- a/js/src/53_interaction.js
+++ b/js/src/53_interaction.ts
@@ -1,3 +1,7 @@
+import { XY_CHROME_CSS } from "./20_theme";
+import { ChartView } from "./50_chartview";
+import { markOf } from "./55_marks";
+
 // ChartView interaction: pointer/drag/wheel wiring, crosshair, box + lasso
 // selection, the modebar, and the animated view (pan/zoom) state machine.
 // Split out of 50_chartview.js; augments the prototype so `this.*` is
@@ -358,7 +362,7 @@ Object.assign(ChartView.prototype, {
       };
       this._dispatchChartEvent("click", detail);
       if (this.comm) {
-        const msg = { type: "click", trace: hit.trace, index: hit.index, screen, modifiers };
+        const msg: any = { type: "click", trace: hit.trace, index: hit.index, screen, modifiers };
         const g = hit.g;
         if (g && g.tier === "density" && g.drill && g.drill.seq !== undefined) {
           msg.drill_seq = g.drill.seq;
@@ -475,7 +479,7 @@ Object.assign(ChartView.prototype, {
     };
     this._dispatchChartEvent("click", detail);
     if (hit && this.comm) {
-      const msg = {
+      const msg: any = {
         type: "click",
         trace: hit.trace,
         index: hit.index,
@@ -673,7 +677,7 @@ Object.assign(ChartView.prototype, {
     });
   },
 
-  _sendSelect(d0, d1, opts = {}) {
+  _sendSelect(d0, d1, opts: any = {}) {
     this._clearLassoOverlay();
     const x0 = Math.min(d0[0], d1[0]), x1 = Math.max(d0[0], d1[0]);
     const y0 = Math.min(d0[1], d1[1]), y1 = Math.max(d0[1], d1[1]);
@@ -699,7 +703,7 @@ Object.assign(ChartView.prototype, {
     }
   },
 
-  _sendSelectPolygon(points, opts = {}) {
+  _sendSelectPolygon(points, opts: any = {}) {
     if (!Array.isArray(points) || points.length < 3) return;
     const polygon = points.map((point) => [point[0], point[1]]);
     if (!polygon.every((point) => point.every(Number.isFinite))) return;
@@ -724,7 +728,7 @@ Object.assign(ChartView.prototype, {
     }
   },
 
-  _selectLocalPolygon(points, opts = {}) {
+  _selectLocalPolygon(points, opts: any = {}) {
     const xs = points.map((point) => point[0]);
     const ys = points.map((point) => point[1]);
     const minX = Math.min(...xs), maxX = Math.max(...xs);
@@ -770,7 +774,7 @@ Object.assign(ChartView.prototype, {
   },
 
   // Standalone selection (no kernel): mask the retained CPU f32 columns (§37).
-  _selectLocal(x0, x1, y0, y1, opts = {}) {
+  _selectLocal(x0, x1, y0, y1, opts: any = {}) {
     let total = 0;
     for (const g of this.gpuTraces) {
       // _cpu only exists where the standalone entry retained copies (retainCpu).
@@ -808,7 +812,7 @@ Object.assign(ChartView.prototype, {
     g.selActive = true;
   },
 
-  _clearSelection(opts = {}) {
+  _clearSelection(opts: any = {}) {
     this._clearLassoOverlay();
     // Clearing a durable selection is itself a durable-state change; linked
     // applies (dispatch: false) and no-op clears push nothing.
@@ -862,9 +866,9 @@ Object.assign(ChartView.prototype, {
     this._modebar = bar;
     this._modeBtns = {};
     this._modebarMoved = false;
-    let setZoomMenuOpen = () => {};
-    let setSelectMenuOpen = () => {};
-    let setExportMenuOpen = () => {};
+    let setZoomMenuOpen: any = () => {};
+    let setSelectMenuOpen: any = () => {};
+    let setExportMenuOpen: any = () => {};
 
     const setVisible = (visible) => {
       const show = visible || this._modebarDragging || bar.contains(document.activeElement);
@@ -959,7 +963,7 @@ Object.assign(ChartView.prototype, {
       setExportMenuOpen(!this._exportMenuOpen);
     });
 
-    const mk = (name, title, onClick, toggles) => {
+    const mk = (name, title, onClick, toggles?: any) => {
       const b = document.createElement("button");
       b.type = "button";
       b.title = title;
@@ -1061,7 +1065,7 @@ Object.assign(ChartView.prototype, {
       bar.appendChild(zoomMenu);
     }
     const zoomMenuItems = [];
-    const mkZoomItem = (name, label, onClick, toggles, separator = false) => {
+    const mkZoomItem = (name, label, onClick, toggles?: any, separator = false) => {
       const button = document.createElement("button");
       button.type = "button";
       button.tabIndex = -1;
@@ -1446,7 +1450,7 @@ Object.assign(ChartView.prototype, {
     if (this.canvas) this.canvas.dataset.xyDragmode = mode;
     // Active state is a class (defeatable via the stylesheet's :where rule /
     // --chart-modebar-active), not an inline background that would beat classes.
-    for (const [name, btn] of Object.entries(this._modeBtns || {})) {
+    for (const [name, btn] of Object.entries<any>(this._modeBtns || {})) {
       btn.classList.toggle("xy-active", name === mode);
       btn.setAttribute("aria-pressed", String(name === mode));
     }
@@ -1513,7 +1517,7 @@ Object.assign(ChartView.prototype, {
     this._viewAnim = null;
   },
 
-  _setView(next, opts = {}) {
+  _setView(next, opts: any = {}) {
     if (this._destroyed) return [];
     const target = this._clampView(this._viewFrom(next), { anchors: opts.anchors });
     const changedAxes = this._axisIds().filter((axisId) => {
@@ -1712,7 +1716,7 @@ Object.assign(ChartView.prototype, {
     return [this._axisValue(axis, first), this._axisValue(axis, second)];
   },
 
-  _clampView(view, opts = {}) {
+  _clampView(view, opts: any = {}) {
     const candidate = this._viewFrom(view, this.view0);
     const ranges = {};
     for (const axisId of this._axisIds()) {
@@ -1787,7 +1791,7 @@ Object.assign(ChartView.prototype, {
     ];
   },
 
-  _zoomAt(f, fx, fy, animate = false, duration = 120, opts = {}) {
+  _zoomAt(f, fx, fy, animate = false, duration = 120, opts: any = {}) {
     const base = this._viewAnim ? this._viewAnim.target : this.view;
     // An axis-band gesture scopes the zoom to the hovered axis (§6 of
     // view-state.md); the policy still filters, never grants.
@@ -1889,7 +1893,7 @@ Object.assign(ChartView.prototype, {
 
   // Box-zoom: fit the view to the dragged data rectangle (§16 precision floor;
   // ignore degenerate drags that would collapse a span below f32 resolution).
-  _zoomToBox(d0, d1, animate = false, opts = {}) {
+  _zoomToBox(d0, d1, animate = false, opts: any = {}) {
     const axes = this._zoomAxes();
     const fractions = {};
     for (const dim of ["x", "y"]) {
@@ -2064,7 +2068,7 @@ Object.assign(ChartView.prototype, {
     const config = this._exportConfig();
     const mime = { png: "image/png", jpeg: "image/jpeg", webp: "image/webp" }[format];
     if (!mime) return Promise.reject(new Error(`unsupported raster export ${format}`));
-    return new Promise((resolve, reject) => {
+    return new Promise<void>((resolve, reject) => {
       image.onload = () => {
         const scale = Number.isFinite(config.scale) && config.scale > 0
           ? config.scale
diff --git a/js/src/54_kernel.js b/js/src/54_kernel.ts
similarity index 98%
rename from js/src/54_kernel.js
rename to js/src/54_kernel.ts
index ab621c0c..d2e3e30a 100644
--- a/js/src/54_kernel.js
+++ b/js/src/54_kernel.ts
@@ -1,10 +1,15 @@
+import { bytesToSpan } from "./00_header";
+import { lodApplyDensityUpdate, lodApplyDrill, lodDropDrill, lodRememberDensity } from "./45_lod";
+import { xyCreateRebinWorker } from "./46_worker";
+import { ChartView } from "./50_chartview";
+
 // ChartView <-> kernel comm: debounced density view-requests, streaming
 // appends, the inbound message handler, and the deep-zoom drill lifecycle
 // (§16). Split out of 50_chartview.js; augments the prototype so `this.*`
 // is unchanged.
 
 Object.assign(ChartView.prototype, {
-  _scheduleViewRequest(viewOverride = this.view, opts = {}) {
+  _scheduleViewRequest(viewOverride = this.view, opts: any = {}) {
     if (this._destroyed || this._glLost) return;
     if (!this.comm) {
       // Kernel-less (standalone HTML): density traces refine via the bundled
@@ -75,7 +80,7 @@ Object.assign(ChartView.prototype, {
   // Standalone (kernel-less) density refinement. Debounced like the kernel
   // request path, then the retained §28 sample re-bins in the bundled worker —
   // off the main thread — and applies like a density_update.
-  _scheduleSampleRebin(viewOverride = this.view, opts = {}) {
+  _scheduleSampleRebin(viewOverride = this.view, opts: any = {}) {
     if (this._destroyed || this._glLost || this._sampleRebinDisabled) return;
     const targets = (this.gpuTraces || []).filter(
       (g) => g.tier === "density" && g.sampleOverlay && g.sampleOverlay._cpu
@@ -238,7 +243,7 @@ Object.assign(ChartView.prototype, {
     this.axes = this._normalizeAxes(spec);
     this._payload = blob;
     this.view0 = this._copyView({
-      ranges: Object.fromEntries(Object.entries(this.axes).map(([id, axis]) => [id, [...axis.range]])),
+      ranges: Object.fromEntries(Object.entries(this.axes).map(([id, axis]: any) => [id, [...axis.range]])),
     });
     if (atHome) {
       this.view = this._copyView(this.view0);
diff --git a/js/src/55_marks.js b/js/src/55_marks.ts
similarity index 98%
rename from js/src/55_marks.js
rename to js/src/55_marks.ts
index ff66fd17..43a0d03a 100644
--- a/js/src/55_marks.js
+++ b/js/src/55_marks.ts
@@ -1,3 +1,5 @@
+import { parseColor } from "./20_theme";
+
 // ---------------------------------------------------------------------------
 // Mark-renderer registry — the client-side dispatch for chart kinds.
 //
@@ -153,7 +155,7 @@ const MESH_MARK = {
   },
 };
 
-const MARK_KINDS = {
+export const MARK_KINDS = {
   histogram: RECT_MARK,
   box: RECT_MARK,
   violin: RECT_MARK,
@@ -215,6 +217,6 @@ const MARK_KINDS = {
 };
 
 // Registry lookup with the scatter fallback every dispatch site shares.
-function markOf(kind) {
+export function markOf(kind) {
   return MARK_KINDS[kind] || MARK_KINDS.scatter;
 }
diff --git a/js/src/56_animation.js b/js/src/56_animation.ts
similarity index 99%
rename from js/src/56_animation.js
rename to js/src/56_animation.ts
index 843a2503..e508764d 100644
--- a/js/src/56_animation.js
+++ b/js/src/56_animation.ts
@@ -1,3 +1,6 @@
+import { PROTOCOL } from "./00_header";
+import { ChartView } from "./50_chartview";
+
 // Declarative data animation: one browser clock, bounded previous/next GPU
 // state, no Python round-trips per frame. Full scene refreshes call
 // updatePayload(); rapid updates cancel/coalesce latest-wins.
@@ -459,7 +462,7 @@ Object.assign(ChartView.prototype, {
     this.view0 = undefined;
     this.view0 = this._clampView({
       ranges: Object.fromEntries(
-        Object.entries(this.axes).map(([id, axis]) => [id, [...axis.range]]),
+        Object.entries(this.axes).map(([id, axis]: any) => [id, [...axis.range]]),
       ),
     });
     const target = { ...this.view0 };
diff --git a/js/src/57_viewstate.js b/js/src/57_viewstate.ts
similarity index 98%
rename from js/src/57_viewstate.js
rename to js/src/57_viewstate.ts
index 7fa41a2d..4cfbb3ff 100644
--- a/js/src/57_viewstate.js
+++ b/js/src/57_viewstate.ts
@@ -1,3 +1,5 @@
+import { ChartView } from "./50_chartview";
+
 // Unified view state (spec/design/view-state.md): the canonical durable-state
 // document, the single apply-a-state-patch implementation every writer calls,
 // the client-local history stack, axis-band gesture scoping, and the
@@ -22,7 +24,7 @@ Object.assign(ChartView.prototype, {
     // The whole public JS control surface (§5.3) — one object on the chart
     // root, identical in notebook, Reflex, and standalone HTML mounts.
     this.root.xy = {
-      applyState: (patch, opts = {}) => this._applyStatePatch(patch, {
+      applyState: (patch, opts: any = {}) => this._applyStatePatch(patch, {
         source: "api",
         animate: opts.animate === true,
         history: opts.history !== false,
@@ -106,7 +108,7 @@ Object.assign(ChartView.prototype, {
   // The one implementation of "apply a state patch" (§3): merge-patch
   // semantics, every entry point in view-state.md is a caller. Returns
   // true when the patch was accepted (even if it was a no-op).
-  _applyStatePatch(patch, opts = {}) {
+  _applyStatePatch(patch, opts: any = {}) {
     if (this._destroyed) return false;
     const error = this._validateStatePatch(patch);
     if (error) {
@@ -159,7 +161,7 @@ Object.assign(ChartView.prototype, {
   // mutation that is about to commit). Called from the §3 mutation path;
   // linked and history-sourced writes never push, and all phases of one
   // gesture (same interaction id) coalesce into one entry.
-  _historyRecord(opts = {}) {
+  _historyRecord(opts: any = {}) {
     if (!this._historyPast || !this._historyEnabled() || this._destroyed) return;
     if (opts.history === false) return;
     if (opts.source === "linked" || opts.source === "history") return;
@@ -192,7 +194,7 @@ Object.assign(ChartView.prototype, {
     // A stored snapshot mentions everything, but a rows-selection snapshot
     // carries only the opaque marker — restore the geometry it can express
     // and leave the marker out (rows-selections are non-durable, §5.1).
-    const patch = { v: 1, ranges: snapshot.ranges };
+    const patch: any = { v: 1, ranges: snapshot.ranges };
     if (!snapshot.selection || !snapshot.selection.rows) {
       patch.selection = snapshot.selection ?? null;
     }
@@ -296,7 +298,7 @@ Object.assign(ChartView.prototype, {
     if (!this._axisBands) return;
     const OUT = 24; // strip breadth outside the plot box
     const IN = 6; //  gutter inside the plot box
-    for (const [axisId, band] of Object.entries(this._axisBands)) {
+    for (const [axisId, band] of Object.entries<any>(this._axisBands)) {
       const dim = this._axisDim(axisId);
       const side = this._axis(axisId).side;
       if (dim === "x") {
@@ -529,7 +531,7 @@ Object.assign(ChartView.prototype, {
       y_axis: (g && g.yAxis) || "y",
       color: this._seriesColorCss(g),
     }] : [];
-    const payload = {
+    const payload: any = {
       active: true,
       cursor: {
         px: [clientX - rootRect.left, clientY - rootRect.top],
diff --git a/js/src/60_entries.js b/js/src/60_entries.ts
similarity index 72%
rename from js/src/60_entries.js
rename to js/src/60_entries.ts
index 66584681..4f0204ff 100644
--- a/js/src/60_entries.js
+++ b/js/src/60_entries.ts
@@ -1,15 +1,20 @@
+import { bytesToSpan, decodeFrame } from "./00_header";
+import { ChartView } from "./50_chartview";
+import { MARK_KINDS, markOf } from "./55_marks";
+// Prototype-augmentation modules: imported for their side effect of attaching
+// methods to ChartView.prototype. Every entry point must load them before the
+// first ChartView is constructed.
+import "./51_annotations";
+import "./52_tooltip";
+import "./53_interaction";
+import "./54_kernel";
+import "./56_animation";
+import "./57_viewstate";
+
 // ---------------------------------------------------------------------------
 // Entry points
 // ---------------------------------------------------------------------------
 
-function bytesToSpan(b) {
-  const span = xyByteSpan(b, "chart payload");
-  // anywidget/third-party callers may hand us an oddly-offset DataView. Keep
-  // the normal aligned path zero-copy; preserve compatibility with one narrow
-  // view-sized copy only when f32 columns could not be constructed in place.
-  return span.byteOffset % 4 === 0 ? span : new Uint8Array(span);
-}
-
 /** First-paint buffers in the shape the spec declares (§29): packed is one
  * blob; split is one span per column. Aligned views stay zero-copy; only a
  * legacy unaligned view pays a narrow view-sized copy. A spec/transport
@@ -27,7 +32,7 @@ function payloadBuffers(spec, raw) {
   return bytesToSpan(raw);
 }
 
-function render({ model, el }) {
+export function render({ model, el }) {
   const spec = model.get("spec");
   const buffer = payloadBuffers(spec, model.get("buffers"));
   const comm = {
@@ -45,7 +50,7 @@ function render({ model, el }) {
 
 /** Standalone (static HTML export — no kernel). Retains typed CPU views of
  * shipped channels so hover can read approximate values without a kernel (§37). */
-function renderStandalone(el, spec, arrayBuffer) {
+export function renderStandalone(el, spec, arrayBuffer) {
   const buffer = bytesToSpan(arrayBuffer);
   const view = new ChartView(el, spec, buffer, null);
   const column = (idx) => view._columnView(buffer, spec.columns[idx]);
@@ -68,10 +73,8 @@ function renderStandalone(el, spec, arrayBuffer) {
   return view;
 }
 
-// Everything from the next line on is stripped for the IIFE/standalone build
-// (ES `export` is illegal in a `new Function` body). The marker must be the
-// whole line — build.mjs splits on it and rejects any trailing text so this
-// description can never leak into the ESM bundle as bare code.
-// ---- exports ----
-export { render, renderStandalone, decodeFrame, ChartView, MARK_KINDS, markOf };
+// Public API. The ESM bundle (static/index.js, anywidget's `_esm`) re-exports
+// these directly; the IIFE bundle (static/standalone.js) exposes the same
+// namespace as `window.xy`.
+export { decodeFrame, ChartView, MARK_KINDS, markOf };
 export default { render, decodeFrame };
diff --git a/js/tsconfig.json b/js/tsconfig.json
new file mode 100644
index 00000000..336d370e
--- /dev/null
+++ b/js/tsconfig.json
@@ -0,0 +1,23 @@
+{
+  "compilerOptions": {
+    // The client targets evergreen WebGL2 browsers (design dossier §32);
+    // Vite/esbuild does the emit, tsc is typecheck-only.
+    "target": "ES2022",
+    "module": "ESNext",
+    "moduleResolution": "bundler",
+    "lib": ["ES2022", "DOM", "DOM.Iterable", "WebWorker.ImportScripts"],
+    "noEmit": true,
+    "isolatedModules": true,
+    "verbatimModuleSyntax": true,
+    "skipLibCheck": true,
+    "forceConsistentCasingInFileNames": true,
+    // Migration posture: the source was converted from untyped concat-order JS
+    // (see git history of js/src/*.js). Params and `this` in augmentation
+    // literals stay implicitly `any` until annotated; tighten these flags as
+    // real types land.
+    "strict": false,
+    "noImplicitAny": false,
+    "noImplicitThis": false
+  },
+  "include": ["src/**/*.ts"]
+}
diff --git a/package-lock.json b/package-lock.json
index 33220c25..94ebeb55 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6,7 +6,733 @@
     "": {
       "name": "xy-dev-tools",
       "devDependencies": {
-        "playwright": "1.61.1"
+        "playwright": "1.61.1",
+        "typescript": "^7.0.2",
+        "vite": "^8.1.5"
+      }
+    },
+    "node_modules/@emnapi/core": {
+      "version": "1.11.1",
+      "resolved": "https://registry.npmjs.org/@emnapi/core/-/core-1.11.1.tgz",
+      "integrity": "sha512-RSvbQmHzdKzNsLYa/wHrbc3KN4sYLKAdPZxqiM2HATqv/SBk2/ENSHpvXGaLOMcsAyz0poEGqkmmKYG3OWiJEQ==",
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "@emnapi/wasi-threads": "1.2.2",
+        "tslib": "^2.4.0"
+      }
+    },
+    "node_modules/@emnapi/runtime": {
+      "version": "1.11.1",
+      "resolved": "https://registry.npmjs.org/@emnapi/runtime/-/runtime-1.11.1.tgz",
+      "integrity": "sha512-vgj7R3y3Wgx24IQaGPA/R6YFXLHVMOZ0uVEyIQPaWs+rd1AzfEMXlAC22FYwO1XkKR6NPsq7mUandH8oIRdZFw==",
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "tslib": "^2.4.0"
+      }
+    },
+    "node_modules/@emnapi/wasi-threads": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/@emnapi/wasi-threads/-/wasi-threads-1.2.2.tgz",
+      "integrity": "sha512-c95qOXkHdydNKhscBTebqEC1CVAZpyqOfVfBzQ1qgzyl3gfeldUjIggDbIZgDKsHLgnsM+igH7TJ/eAasaVuMA==",
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "tslib": "^2.4.0"
+      }
+    },
+    "node_modules/@napi-rs/wasm-runtime": {
+      "version": "1.1.6",
+      "resolved": "https://registry.npmjs.org/@napi-rs/wasm-runtime/-/wasm-runtime-1.1.6.tgz",
+      "integrity": "sha512-ZLv/JdUfkvOy9eCnnBaGfiO+XimbjebAeO+MRQqD/B+FR1tnRN0tpKSJHRbE8sFfS6aqsXZ67TQjfwfsxULVbg==",
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "@tybys/wasm-util": "^0.10.3"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/Brooooooklyn"
+      },
+      "peerDependencies": {
+        "@emnapi/core": "^1.7.1",
+        "@emnapi/runtime": "^1.7.1"
+      }
+    },
+    "node_modules/@oxc-project/types": {
+      "version": "0.139.0",
+      "resolved": "https://registry.npmjs.org/@oxc-project/types/-/types-0.139.0.tgz",
+      "integrity": "sha512-r9gHphtCs+1M7J0pw6Sn/hh/Wpa/iQrOOkrNAlVLF/gHq+/CJmHIWKKUUhdWjcD6CIa8idarspCsASiXCXvFUw==",
+      "dev": true,
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/Boshen"
+      }
+    },
+    "node_modules/@rolldown/binding-android-arm64": {
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+        "arm64"
+      ],
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+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "android"
+      ],
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+      }
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+      "cpu": [
+        "arm64"
+      ],
+      "dev": true,
+      "libc": [
+        "musl"
+      ],
+      "license": "MPL-2.0",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">= 12.0.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/parcel"
+      }
+    },
+    "node_modules/lightningcss-linux-x64-gnu": {
+      "version": "1.33.0",
+      "resolved": "https://registry.npmjs.org/lightningcss-linux-x64-gnu/-/lightningcss-linux-x64-gnu-1.33.0.tgz",
+      "integrity": "sha512-ar+Ju7LmcN0Jo4FpL4hpFybwNG9/3A/Br5KW2n2jyODg3MEZXaDYADdemoNS+BDNfMgKvylJLj4S5tyRActuAg==",
+      "cpu": [
+        "x64"
+      ],
+      "dev": true,
+      "libc": [
+        "glibc"
+      ],
+      "license": "MPL-2.0",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">= 12.0.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/parcel"
+      }
+    },
+    "node_modules/lightningcss-linux-x64-musl": {
+      "version": "1.33.0",
+      "resolved": "https://registry.npmjs.org/lightningcss-linux-x64-musl/-/lightningcss-linux-x64-musl-1.33.0.tgz",
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+      "cpu": [
+        "x64"
+      ],
+      "dev": true,
+      "libc": [
+        "musl"
+      ],
+      "license": "MPL-2.0",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">= 12.0.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/parcel"
+      }
+    },
+    "node_modules/lightningcss-win32-arm64-msvc": {
+      "version": "1.33.0",
+      "resolved": "https://registry.npmjs.org/lightningcss-win32-arm64-msvc/-/lightningcss-win32-arm64-msvc-1.33.0.tgz",
+      "integrity": "sha512-1K+MPfLSFVpphzpdbfkhlWk6wBrTObBzS2T6db10PNOZgR9GoVsAWzwNyuhUYYbTp23j+4RrncfujZ4uAzXvwA==",
+      "cpu": [
+        "arm64"
+      ],
+      "dev": true,
+      "license": "MPL-2.0",
+      "optional": true,
+      "os": [
+        "win32"
+      ],
+      "engines": {
+        "node": ">= 12.0.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/parcel"
+      }
+    },
+    "node_modules/lightningcss-win32-x64-msvc": {
+      "version": "1.33.0",
+      "resolved": "https://registry.npmjs.org/lightningcss-win32-x64-msvc/-/lightningcss-win32-x64-msvc-1.33.0.tgz",
+      "integrity": "sha512-OlEICDx/Xl0FqSp4bry8zFnCvGpig3Gl4gCquvYwHuqJKEC1+n9NgDniFvqHGmMv1ZkqDJrDqKKSykTDX+ehuA==",
+      "cpu": [
+        "x64"
+      ],
+      "dev": true,
+      "license": "MPL-2.0",
+      "optional": true,
+      "os": [
+        "win32"
+      ],
+      "engines": {
+        "node": ">= 12.0.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/parcel"
+      }
+    },
+    "node_modules/nanoid": {
+      "version": "3.3.16",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.16.tgz",
+      "integrity": "sha512-bzlKTyNJ7+LdGIIwy8ijFpIqEQIvafahV7eYykJ8Cvh42EdJeODoJ6gUJXpQJvej1BddH8OqTXZNE/KfbWAu8Q==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
+        }
+      ],
+      "license": "MIT",
+      "bin": {
+        "nanoid": "bin/nanoid.cjs"
+      },
+      "engines": {
+        "node": "^10 || ^12 || ^13.7 || ^14 || >=15.0.1"
+      }
+    },
+    "node_modules/picocolors": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.1.1.tgz",
+      "integrity": "sha512-xceH2snhtb5M9liqDsmEw56le376mTZkEX/jEb/RxNFyegNul7eNslCXP9FDj/Lcu0X8KEyMceP2ntpaHrDEVA==",
+      "dev": true,
+      "license": "ISC"
+    },
+    "node_modules/picomatch": {
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.5.tgz",
+      "integrity": "sha512-RvwwcruNjI1ncT5xRakeyS9Lf8lcItv34KD+aif+VH9kduAyfYBipGh12274xtenIPZ119/R9BdTBa8gAwSh0A==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/jonschlinkert"
+      }
+    },
     "node_modules/playwright": {
       "version": "1.61.1",
       "resolved": "https://registry.npmjs.org/playwright/-/playwright-1.61.1.tgz",
@@ -55,6 +1093,232 @@
       "engines": {
         "node": ">=18"
       }
+    },
+    "node_modules/postcss": {
+      "version": "8.5.21",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.21.tgz",
+      "integrity": "sha512-v4sDNP3fdNiWMfabO7OwOQdOX8TiQSztKyT1Wj0w+j7LDallJThJRBBBmzVGyYj0crMh7jlV4zepPkiNu9UwDQ==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/postcss/"
+        },
+        {
+          "type": "tidelift",
+          "url": "https://tidelift.com/funding/github/npm/postcss"
+        },
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "nanoid": "^3.3.16",
+        "picocolors": "^1.1.1",
+        "source-map-js": "^1.2.1"
+      },
+      "engines": {
+        "node": "^10 || ^12 || >=14"
+      }
+    },
+    "node_modules/rolldown": {
+      "version": "1.1.5",
+      "resolved": "https://registry.npmjs.org/rolldown/-/rolldown-1.1.5.tgz",
+      "integrity": "sha512-t9z29cJjXf/vxQ8dyhCSpt6H6aSwHTk8cT5I3iy6SMXuFpk5mB6PL6XfC8PCwrPTx93udwKUm9HRteAlTGBLiA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@oxc-project/types": "=0.139.0",
+        "@rolldown/pluginutils": "^1.0.0"
+      },
+      "bin": {
+        "rolldown": "bin/cli.mjs"
+      },
+      "engines": {
+        "node": "^20.19.0 || >=22.12.0"
+      },
+      "optionalDependencies": {
+        "@rolldown/binding-android-arm64": "1.1.5",
+        "@rolldown/binding-darwin-arm64": "1.1.5",
+        "@rolldown/binding-darwin-x64": "1.1.5",
+        "@rolldown/binding-freebsd-x64": "1.1.5",
+        "@rolldown/binding-linux-arm-gnueabihf": "1.1.5",
+        "@rolldown/binding-linux-arm64-gnu": "1.1.5",
+        "@rolldown/binding-linux-arm64-musl": "1.1.5",
+        "@rolldown/binding-linux-ppc64-gnu": "1.1.5",
+        "@rolldown/binding-linux-s390x-gnu": "1.1.5",
+        "@rolldown/binding-linux-x64-gnu": "1.1.5",
+        "@rolldown/binding-linux-x64-musl": "1.1.5",
+        "@rolldown/binding-openharmony-arm64": "1.1.5",
+        "@rolldown/binding-wasm32-wasi": "1.1.5",
+        "@rolldown/binding-win32-arm64-msvc": "1.1.5",
+        "@rolldown/binding-win32-x64-msvc": "1.1.5"
+      }
+    },
+    "node_modules/source-map-js": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.1.tgz",
+      "integrity": "sha512-UXWMKhLOwVKb728IUtQPXxfYU+usdybtUrK/8uGE8CQMvrhOpwvzDBwj0QhSL7MQc7vIsISBG8VQ8+IDQxpfQA==",
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/tinyglobby": {
+      "version": "0.2.17",
+      "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.17.tgz",
+      "integrity": "sha512-wXR/dYpcqKmfWpEdZjiKJOwCNFndD0DMnrW/cYjVGttEkBfVgcLFHoNrlj47mjOVic9yyNu65alsgF4NQyTa2g==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "fdir": "^6.5.0",
+        "picomatch": "^4.0.4"
+      },
+      "engines": {
+        "node": ">=12.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/SuperchupuDev"
+      }
+    },
+    "node_modules/tslib": {
+      "version": "2.8.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
+      "integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==",
+      "dev": true,
+      "license": "0BSD",
+      "optional": true
+    },
+    "node_modules/typescript": {
+      "version": "7.0.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-7.0.2.tgz",
+      "integrity": "sha512-8FYau96o3NKOhbjKi/qNvG/W5jhzxkbdm5sj9AbZ/5T5sWqn3hJgLfGx27sRKZWTvyzCP8dLRBTf5tBTSRVUNA==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "bin": {
+        "tsc": "bin/tsc"
+      },
+      "engines": {
+        "node": ">=16.20.0"
+      },
+      "optionalDependencies": {
+        "@typescript/typescript-aix-ppc64": "7.0.2",
+        "@typescript/typescript-darwin-arm64": "7.0.2",
+        "@typescript/typescript-darwin-x64": "7.0.2",
+        "@typescript/typescript-freebsd-arm64": "7.0.2",
+        "@typescript/typescript-freebsd-x64": "7.0.2",
+        "@typescript/typescript-linux-arm": "7.0.2",
+        "@typescript/typescript-linux-arm64": "7.0.2",
+        "@typescript/typescript-linux-loong64": "7.0.2",
+        "@typescript/typescript-linux-mips64el": "7.0.2",
+        "@typescript/typescript-linux-ppc64": "7.0.2",
+        "@typescript/typescript-linux-riscv64": "7.0.2",
+        "@typescript/typescript-linux-s390x": "7.0.2",
+        "@typescript/typescript-linux-x64": "7.0.2",
+        "@typescript/typescript-netbsd-arm64": "7.0.2",
+        "@typescript/typescript-netbsd-x64": "7.0.2",
+        "@typescript/typescript-openbsd-arm64": "7.0.2",
+        "@typescript/typescript-openbsd-x64": "7.0.2",
+        "@typescript/typescript-sunos-x64": "7.0.2",
+        "@typescript/typescript-win32-arm64": "7.0.2",
+        "@typescript/typescript-win32-x64": "7.0.2"
+      }
+    },
+    "node_modules/vite": {
+      "version": "8.1.5",
+      "resolved": "https://registry.npmjs.org/vite/-/vite-8.1.5.tgz",
+      "integrity": "sha512-7ULLwsCdYx/nRyrpiEwvqb5TFHrMVZyBt+rg/OAXT7rgj/z+DtTDyKFeLAdDkubDVDKD8jOsndmy7m55XcfUsw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "lightningcss": "^1.32.0",
+        "picomatch": "^4.0.5",
+        "postcss": "^8.5.17",
+        "rolldown": "~1.1.5",
+        "tinyglobby": "^0.2.17"
+      },
+      "bin": {
+        "vite": "bin/vite.js"
+      },
+      "engines": {
+        "node": "^20.19.0 || >=22.12.0"
+      },
+      "funding": {
+        "url": "https://github.com/vitejs/vite?sponsor=1"
+      },
+      "optionalDependencies": {
+        "fsevents": "~2.3.3"
+      },
+      "peerDependencies": {
+        "@types/node": "^20.19.0 || >=22.12.0",
+        "@vitejs/devtools": "^0.3.0",
+        "esbuild": "^0.27.0 || ^0.28.0",
+        "jiti": ">=1.21.0",
+        "less": "^4.0.0",
+        "sass": "^1.70.0",
+        "sass-embedded": "^1.70.0",
+        "stylus": ">=0.54.8",
+        "sugarss": "^5.0.0",
+        "terser": "^5.16.0",
+        "tsx": "^4.8.1",
+        "yaml": "^2.4.2"
+      },
+      "peerDependenciesMeta": {
+        "@types/node": {
+          "optional": true
+        },
+        "@vitejs/devtools": {
+          "optional": true
+        },
+        "esbuild": {
+          "optional": true
+        },
+        "jiti": {
+          "optional": true
+        },
+        "less": {
+          "optional": true
+        },
+        "sass": {
+          "optional": true
+        },
+        "sass-embedded": {
+          "optional": true
+        },
+        "stylus": {
+          "optional": true
+        },
+        "sugarss": {
+          "optional": true
+        },
+        "terser": {
+          "optional": true
+        },
+        "tsx": {
+          "optional": true
+        },
+        "yaml": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/vite/node_modules/fsevents": {
+      "version": "2.3.3",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz",
+      "integrity": "sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==",
+      "dev": true,
+      "hasInstallScript": true,
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "darwin"
+      ],
+      "engines": {
+        "node": "^8.16.0 || ^10.6.0 || >=11.0.0"
+      }
     }
   }
 }
diff --git a/package.json b/package.json
index 237718f3..a919fe86 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,15 @@
 {
   "name": "xy-dev-tools",
   "private": true,
-  "description": "Development-only browser test dependencies for xy",
+  "description": "Development-only dependencies for xy: the vite/typescript client build toolchain and browser test runner",
+  "scripts": {
+    "build": "node js/build.mjs",
+    "check": "node js/build.mjs --check",
+    "typecheck": "tsc -p js/tsconfig.json"
+  },
   "devDependencies": {
-    "playwright": "1.61.1"
+    "playwright": "1.61.1",
+    "typescript": "^7.0.2",
+    "vite": "^8.1.5"
   }
 }
diff --git a/pyproject.toml b/pyproject.toml
index ca5cfe4e..2e3cfca3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -69,7 +69,12 @@ include = [
     # and the ban on its reflex.lock frontend pins.
     "python/xy",
     "src",
-    "js/src",
+    # The whole js/ dir (TS sources + build.mjs + tsconfig) plus the npm
+    # manifests, so the sdist can rebuild the client with `npm ci &&
+    # node js/build.mjs` (verify_sdist.py checks the load-bearing files).
+    "js",
+    "package.json",
+    "package-lock.json",
     "benchmarks",
     "docs",
     "spec",
diff --git a/python/xy/_arrowgeom.py b/python/xy/_arrowgeom.py
index f722f4b0..0193622d 100644
--- a/python/xy/_arrowgeom.py
+++ b/python/xy/_arrowgeom.py
@@ -1,6 +1,6 @@
 """Arrow-annotation path geometry shared by the SVG and raster exporters.
 
-Mirrors ``xyArrowGeometry`` in ``js/src/51_annotations.js`` — keep the two in
+Mirrors ``xyArrowGeometry`` in ``js/src/51_annotations.ts`` — keep the two in
 sync. Style keys: ``curve`` (matplotlib arc3 rad — quadratic bulge as a
 fraction of chord length), ``angle_a``/``angle_b`` (matplotlib angle3/angle
 departure/arrival angles, degrees, y-up screen space — the control point is
diff --git a/python/xy/_svg.py b/python/xy/_svg.py
index 74c3bf8c..34c20ecb 100644
--- a/python/xy/_svg.py
+++ b/python/xy/_svg.py
@@ -7,7 +7,7 @@
 independent SVG in milliseconds — no browser, no extra dependencies.
 
 Layout, tick math, colormaps, and mark styling mirror the JS client
-(`30_ticks.js`, `10_colormaps.js`, `50_chartview.js`); tests assert the
+(`30_ticks.ts`, `10_colormaps.ts`, `50_chartview.ts`); tests assert the
 ported tables stay in sync with the JS parts. Known static-export
 approximations, documented in spec/api/styling.md: area mark-space gradients use
 the area's bounding box (SVG has no per-column gradient); complete chart color
@@ -43,7 +43,7 @@ def _stroke_opacity(style: dict[str, Any], default: float = 1.0) -> float:
     return float(style.get("opacity", default)) * float(style.get("stroke_opacity", 1.0))
 
 
-# Mirrors js/src/10_colormaps.js COLORMAP_STOPS (§36) — test-guarded.
+# Mirrors js/src/10_colormaps.ts COLORMAP_STOPS (§36) — test-guarded.
 COLORMAP_STOPS: dict[str, list[tuple[int, int, int]]] = {
     "binary": [(255, 255, 255), (0, 0, 0)],
     "gray": [
@@ -311,7 +311,7 @@ def _stroke_opacity(style: dict[str, Any], default: float = 1.0) -> float:
 
 
 # ---------------------------------------------------------------------------
-# Tick math — ports of 30_ticks.js (f64 throughout, §16)
+# Tick math — ports of 30_ticks.ts (f64 throughout, §16)
 # ---------------------------------------------------------------------------
 
 
@@ -2182,7 +2182,7 @@ def _trace_paint_rgba(
 
 # The hexagon ring around a hexbin cell center, as fractions of the cell
 # pitch (style hex_dx/hex_dy). Shared by the SVG and raster exporters; the JS
-# client mirrors it in _buildHexbinMark (js/src/50_chartview.js) — keep them
+# client mirrors it in _buildHexbinMark (js/src/50_chartview.ts) — keep them
 # in sync.
 HEX_RING = (
     (0.0, -1.0 / 3.0),
diff --git a/python/xy/static/index.js b/python/xy/static/index.js
index 0dd7dd46..d13951b5 100644
--- a/python/xy/static/index.js
+++ b/python/xy/static/index.js
@@ -1,236 +1,4 @@
-
-"use strict";
-const PROTOCOL = 4;
-const XY_FRAME_MAGIC = [0x58, 0x59, 0x42, 0x46];
-const XY_FRAME_VERSION = 1;
-const XY_FRAME_HEADER_SIZE = 24;
-const XY_FRAME_ALIGNMENT = 8;
-const XY_FRAME_DEFAULT_LIMITS = Object.freeze({
-maxFrameBytes: 512 * 1024 * 1024,
-maxMetadataBytes: 8 * 1024 * 1024,
-maxBuffers: 4096,
-maxBufferBytes: 256 * 1024 * 1024,
-});
-function xyByteSpan(value, label = "buffer") {
-if (value instanceof ArrayBuffer) return new Uint8Array(value);
-if (ArrayBuffer.isView(value)) {
-return new Uint8Array(value.buffer, value.byteOffset, value.byteLength);
-}
-throw new TypeError(`${label} must be an ArrayBuffer or ArrayBuffer view`);
-}
-function xyFrameLimit(limits, name) {
-const fallback = XY_FRAME_DEFAULT_LIMITS[name];
-const value = limits && limits[name] != null ? limits[name] : fallback;
-if (!Number.isSafeInteger(value) || value <= 0) {
-throw new RangeError(`${name} must be a positive safe integer`);
-}
-return value;
-}
-function xyAlign8(value) {
-return Math.ceil(value / XY_FRAME_ALIGNMENT) * XY_FRAME_ALIGNMENT;
-}
-function xyFrameU64(view, offset, label) {
-const value = view.getBigUint64(offset, true);
-if (value > BigInt(Number.MAX_SAFE_INTEGER)) {
-throw new RangeError(`${label} exceeds JavaScript's safe integer range`);
-}
-return Number(value);
-}
-function xyRequireZeroPadding(bytes, start, end, label) {
-if (end > bytes.byteLength) throw new RangeError(`truncated ${label} padding`);
-for (let i = start; i < end; i++) {
-if (bytes[i] !== 0) throw new RangeError(`non-zero ${label} padding`);
-}
-}
-
-function decodeFrame(body, limits = null) {
-const bytes = xyByteSpan(body, "frame body");
-const maxFrameBytes = xyFrameLimit(limits, "maxFrameBytes");
-const maxMetadataBytes = xyFrameLimit(limits, "maxMetadataBytes");
-const maxBuffers = xyFrameLimit(limits, "maxBuffers");
-const maxBufferBytes = xyFrameLimit(limits, "maxBufferBytes");
-if (maxMetadataBytes > maxFrameBytes) {
-throw new RangeError("maxMetadataBytes cannot exceed maxFrameBytes");
-}
-if (maxBufferBytes > maxFrameBytes) {
-throw new RangeError("maxBufferBytes cannot exceed maxFrameBytes");
-}
-if (bytes.byteOffset % XY_FRAME_ALIGNMENT !== 0) {
-throw new RangeError("frame body must start on an 8-byte boundary");
-}
-if (bytes.byteLength > maxFrameBytes) {
-throw new RangeError(`frame length ${bytes.byteLength} exceeds limit ${maxFrameBytes}`);
-}
-if (bytes.byteLength < XY_FRAME_HEADER_SIZE) throw new RangeError("truncated frame header");
-const view = new DataView(bytes.buffer, bytes.byteOffset, bytes.byteLength);
-for (let i = 0; i < XY_FRAME_MAGIC.length; i++) {
-if (view.getUint8(i) !== XY_FRAME_MAGIC[i]) throw new RangeError("invalid frame magic");
-}
-const version = view.getUint8(4);
-if (version !== XY_FRAME_VERSION) throw new RangeError(`unsupported frame version ${version}`);
-const flags = view.getUint8(5);
-if (flags !== 0) throw new RangeError(`unsupported frame flags 0x${flags.toString(16)}`);
-const headerSize = view.getUint16(6, true);
-if (headerSize !== XY_FRAME_HEADER_SIZE) {
-throw new RangeError(`unsupported frame header size ${headerSize}`);
-}
-const metadataLength = view.getUint32(8, true);
-const bufferCount = view.getUint32(12, true);
-const totalLength = xyFrameU64(view, 16, "declared frame length");
-if (totalLength !== bytes.byteLength) {
-throw new RangeError(
-`declared frame length ${totalLength} does not match body length ${bytes.byteLength}`
-);
-}
-if (metadataLength > maxMetadataBytes) {
-throw new RangeError(`metadata length ${metadataLength} exceeds limit ${maxMetadataBytes}`);
-}
-if (bufferCount > maxBuffers) {
-throw new RangeError(`buffer count ${bufferCount} exceeds limit ${maxBuffers}`);
-}
-const metadataEnd = XY_FRAME_HEADER_SIZE + metadataLength;
-if (metadataEnd > bytes.byteLength) throw new RangeError("truncated frame metadata");
-let message;
-try {
-const metadataBytes = new Uint8Array(
-bytes.buffer,
-bytes.byteOffset + XY_FRAME_HEADER_SIZE,
-metadataLength
-);
-message = JSON.parse(new TextDecoder("utf-8", { fatal: true }).decode(metadataBytes));
-} catch (error) {
-throw new RangeError(`invalid frame metadata JSON: ${error}`);
-}
-if (!message || Array.isArray(message) || typeof message !== "object") {
-throw new RangeError("frame metadata must decode to an object");
-}
-let position = xyAlign8(metadataEnd);
-xyRequireZeroPadding(bytes, metadataEnd, position, "metadata");
-const buffers = [];
-for (let i = 0; i < bufferCount; i++) {
-if (position + 8 > bytes.byteLength) throw new RangeError(`truncated buffer ${i} length`);
-const bufferLength = xyFrameU64(view, position, `buffer ${i} length`);
-position += 8;
-if (bufferLength > maxBufferBytes) {
-throw new RangeError(`buffer ${i} length ${bufferLength} exceeds limit ${maxBufferBytes}`);
-}
-const end = position + bufferLength;
-if (end > bytes.byteLength) throw new RangeError(`truncated buffer ${i}`);
-const absoluteOffset = bytes.byteOffset + position;
-if (absoluteOffset % XY_FRAME_ALIGNMENT !== 0) {
-throw new RangeError(`buffer ${i} is not 8-byte aligned`);
-}
-buffers.push(new Uint8Array(bytes.buffer, absoluteOffset, bufferLength));
-const paddedEnd = xyAlign8(end);
-xyRequireZeroPadding(bytes, end, paddedEnd, `buffer ${i}`);
-position = paddedEnd;
-}
-if (position !== bytes.byteLength) {
-throw new RangeError(`frame has ${bytes.byteLength - position} trailing bytes`);
-}
-return { message, buffers, version: XY_FRAME_VERSION, byteLength: bytes.byteLength };
-}
-const COLORMAP_STOPS = {
-binary: [[255, 255, 255], [0, 0, 0]],
-gray: [[0, 0, 0], [25, 25, 25], [51, 51, 51], [76, 76, 76], [102, 102, 102], [128, 128, 128], [153, 153, 153], [179, 179, 179], [204, 204, 204], [230, 230, 230], [255, 255, 255]],
-viridis: [[68, 1, 84], [72, 36, 117], [65, 68, 135], [53, 95, 141], [42, 120, 142], [33, 145, 140], [34, 168, 132], [68, 191, 112], [122, 209, 81], [189, 223, 38], [253, 231, 37]],
-plasma: [[13, 8, 135], [65, 4, 157], [106, 0, 168], [143, 13, 164], [177, 42, 144], [204, 71, 120], [225, 100, 98], [242, 132, 75], [252, 166, 54], [252, 206, 37], [240, 249, 33]],
-inferno: [[0, 0, 4], [22, 11, 57], [66, 10, 104], [106, 23, 110], [147, 38, 103], [188, 55, 84], [221, 81, 58], [243, 120, 25], [252, 165, 10], [246, 215, 70], [252, 255, 164]],
-magma: [[0, 0, 4], [20, 14, 54], [59, 15, 112], [100, 26, 128], [140, 41, 129], [183, 55, 121], [222, 73, 104], [247, 112, 92], [254, 159, 109], [254, 207, 146], [252, 253, 191]],
-cividis: [[0, 34, 78], [8, 51, 112], [53, 69, 108], [79, 87, 108], [102, 105, 112], [125, 124, 120], [148, 142, 119], [174, 163, 113], [200, 184, 102], [229, 207, 82], [254, 232, 56]],
-coolwarm: [[59, 76, 192], [89, 119, 227], [123, 159, 249], [158, 190, 255], [192, 212, 245], [221, 220, 220], [242, 203, 183], [247, 172, 142], [238, 132, 104], [214, 82, 68], [180, 4, 38]],
-turbo: [[48, 18, 59], [69, 89, 203], [62, 155, 254], [25, 213, 205], [70, 248, 132], [164, 252, 60], [225, 221, 55], [254, 164, 49], [240, 91, 18], [195, 37, 3], [122, 4, 3]],
-rainbow: [[128, 0, 255], [78, 77, 252], [25, 150, 243], [24, 205, 228], [77, 243, 206], [128, 255, 180], [178, 243, 150], [230, 205, 115], [255, 150, 79], [255, 77, 39], [255, 0, 0]],
-jet: [[0, 0, 128], [0, 0, 241], [0, 76, 255], [0, 176, 255], [41, 255, 206], [125, 255, 122], [206, 255, 41], [255, 196, 0], [255, 104, 0], [241, 8, 0], [128, 0, 0]],
-rdgy: [[103, 0, 31], [177, 24, 43], [214, 96, 77], [243, 164, 129], [253, 219, 199], [254, 254, 254], [224, 224, 224], [185, 185, 185], [135, 135, 135], [76, 76, 76], [26, 26, 26]],
-rdbu: [[103, 0, 31], [177, 24, 43], [214, 96, 77], [243, 164, 129], [253, 219, 199], [246, 247, 247], [209, 229, 240], [144, 196, 221], [67, 147, 195], [32, 101, 171], [5, 48, 97]],
-blues: [[247, 251, 255], [227, 238, 249], [208, 225, 242], [183, 212, 234], [148, 196, 223], [106, 174, 214], [74, 152, 201], [46, 126, 188], [23, 100, 171], [8, 74, 145], [8, 48, 107]],
-purples: [[252, 251, 253], [242, 240, 247], [226, 226, 239], [206, 207, 229], [182, 182, 216], [158, 154, 200], [134, 131, 189], [114, 98, 172], [97, 64, 155], [79, 31, 139], [63, 0, 125]],
-pubu: [[255, 247, 251], [240, 234, 244], [219, 218, 235], [192, 201, 226], [156, 185, 217], [115, 169, 207], [66, 149, 195], [24, 124, 182], [5, 103, 162], [4, 83, 130], [2, 56, 88]],
-piyg: [[142, 1, 82], [196, 26, 124], [222, 119, 174], [241, 181, 217], [253, 224, 239], [247, 247, 246], [230, 245, 208], [183, 224, 133], [127, 188, 65], [76, 145, 33], [39, 100, 25]],
-prgn: [[64, 0, 75], [117, 41, 130], [153, 112, 171], [193, 164, 206], [231, 212, 232], [246, 247, 246], [217, 240, 211], [165, 218, 159], [90, 174, 97], [26, 119, 54], [0, 68, 27]],
-rdylgn: [[165, 0, 38], [214, 47, 39], [244, 109, 67], [253, 173, 96], [254, 224, 139], [254, 255, 190], [217, 239, 139], [165, 216, 106], [102, 189, 99], [25, 151, 80], [0, 104, 55]],
-spectral: [[158, 1, 66], [212, 61, 79], [244, 109, 67], [253, 173, 96], [254, 224, 139], [255, 255, 190], [230, 245, 152], [170, 220, 164], [102, 194, 165], [51, 135, 188], [94, 79, 162]],
-};
-function colormapStops(name) {
-const reversed = typeof name === "string" && name.endsWith("_r");
-const base = reversed ? name.slice(0, -2) : name;
-const stops = COLORMAP_STOPS[base] || COLORMAP_STOPS.viridis;
-return reversed ? [...stops].reverse() : stops;
-}
-function buildLutData(name) {
-const stops = colormapStops(name);
-const N = 256;
-const data = new Uint8Array(N * 4);
-for (let i = 0; i < N; i++) {
-const t = (i / (N - 1)) * (stops.length - 1);
-const lo = Math.floor(t);
-const hi = Math.min(lo + 1, stops.length - 1);
-const f = t - lo;
-for (let c = 0; c < 3; c++) {
-data[i * 4 + c] = Math.round(stops[lo][c] * (1 - f) + stops[hi][c] * f);
-}
-data[i * 4 + 3] = 255;
-}
-return data;
-}
-function resolveCssColor(host, expr) {
-const probe = document.createElement("span");
-probe.style.display = "none";
-probe.style.color = expr;
-host.appendChild(probe);
-const rgb = getComputedStyle(probe).color;
-host.removeChild(probe);
-const m = rgb.match(/rgba?\(([^)]+)\)/);
-if (!m) return null;
-const parts = m[1].split(/[,/\s]+/).filter(Boolean).map(Number);
-const [r, g, b, a = 1] = parts;
-return [r / 255, g / 255, b / 255, a];
-}
-function cssToken(el, name) {
-const v = getComputedStyle(el).getPropertyValue(name).trim();
-return v || null;
-}
-function hexColor(hex) {
-const h = hex.replace("#", "");
-if (!/^(?:[0-9a-fA-F]{3}|[0-9a-fA-F]{4}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})$/.test(h)) {
-return null;
-}
-const full = h.length === 3 || h.length === 4 ? [...h].map((c) => c + c).join("") : h;
-const n = parseInt(full.slice(0, 6), 16);
-const a = full.length === 8 ? parseInt(full.slice(6, 8), 16) / 255 : 1;
-return [((n >> 16) & 255) / 255, ((n >> 8) & 255) / 255, (n & 255) / 255, a];
-}
-function parseColor(host, c, fallback) {
-if (!c) return fallback;
-if (typeof c !== "string") return fallback;
-const expr = c.trim();
-if (!expr) return fallback;
-const out = expr.startsWith("#") ? hexColor(expr) : resolveCssColor(host, expr);
-if (out) return out;
-if (typeof console !== "undefined" && console.warn) {
-console.warn(`xy: unresolvable color ${JSON.stringify(expr)}; using fallback`);
-}
-return fallback;
-}
-function readTheme(root) {
-const text = resolveCssColor(root, "currentColor") || [0.2, 0.2, 0.2, 1];
-const withA = (c, a) => [c[0], c[1], c[2], a];
-const tok = (name) => {
-const v = cssToken(root, name);
-return v ? resolveCssColor(root, v) || null : null;
-};
-return {
-bg: tok("--chart-bg"),
-grid: tok("--chart-grid") || withA(text, 0.14),
-axis: tok("--chart-axis") || withA(text, 0.55),
-label: tok("--chart-text") || withA(text, 0.85),
-};
-}
-function cssColor([r, g, b, a]) {
-return `rgba(${Math.round(r * 255)},${Math.round(g * 255)},${Math.round(b * 255)},${a})`;
-}
-const XY_CHROME_CSS = `
+var e=[88,89,66,70],t=1,n=24,r=8,i=Object.freeze({maxFrameBytes:512*1024*1024,maxMetadataBytes:8*1024*1024,maxBuffers:4096,maxBufferBytes:256*1024*1024});function a(e,t=`buffer`){if(e instanceof ArrayBuffer)return new Uint8Array(e);if(ArrayBuffer.isView(e))return new Uint8Array(e.buffer,e.byteOffset,e.byteLength);throw TypeError(`${t} must be an ArrayBuffer or ArrayBuffer view`)}function o(e){let t=a(e,`chart payload`);return t.byteOffset%4==0?t:new Uint8Array(t)}function s(e,t){let n=i[t],r=e&&e[t]!=null?e[t]:n;if(!Number.isSafeInteger(r)||r<=0)throw RangeError(`${t} must be a positive safe integer`);return r}function c(e){return Math.ceil(e/r)*r}function l(e,t,n){let r=e.getBigUint64(t,!0);if(r>BigInt(2**53-1))throw RangeError(`${n} exceeds JavaScript's safe integer range`);return Number(r)}function u(e,t,n,r){if(n>e.byteLength)throw RangeError(`truncated ${r} padding`);for(let i=t;i<n;i++)if(e[i]!==0)throw RangeError(`non-zero ${r} padding`)}function d(i,o=null){let d=a(i,`frame body`),f=s(o,`maxFrameBytes`),p=s(o,`maxMetadataBytes`),m=s(o,`maxBuffers`),h=s(o,`maxBufferBytes`);if(p>f)throw RangeError(`maxMetadataBytes cannot exceed maxFrameBytes`);if(h>f)throw RangeError(`maxBufferBytes cannot exceed maxFrameBytes`);if(d.byteOffset%r!==0)throw RangeError(`frame body must start on an 8-byte boundary`);if(d.byteLength>f)throw RangeError(`frame length ${d.byteLength} exceeds limit ${f}`);if(d.byteLength<n)throw RangeError(`truncated frame header`);let g=new DataView(d.buffer,d.byteOffset,d.byteLength);for(let t=0;t<e.length;t++)if(g.getUint8(t)!==e[t])throw RangeError(`invalid frame magic`);let _=g.getUint8(4);if(_!==t)throw RangeError(`unsupported frame version ${_}`);let v=g.getUint8(5);if(v!==0)throw RangeError(`unsupported frame flags 0x${v.toString(16)}`);let y=g.getUint16(6,!0);if(y!==n)throw RangeError(`unsupported frame header size ${y}`);let b=g.getUint32(8,!0),x=g.getUint32(12,!0),S=l(g,16,`declared frame length`);if(S!==d.byteLength)throw RangeError(`declared frame length ${S} does not match body length ${d.byteLength}`);if(b>p)throw RangeError(`metadata length ${b} exceeds limit ${p}`);if(x>m)throw RangeError(`buffer count ${x} exceeds limit ${m}`);let C=n+b;if(C>d.byteLength)throw RangeError(`truncated frame metadata`);let w;try{let e=new Uint8Array(d.buffer,d.byteOffset+n,b);w=JSON.parse(new TextDecoder(`utf-8`,{fatal:!0}).decode(e))}catch(e){throw RangeError(`invalid frame metadata JSON: ${e}`)}if(!w||Array.isArray(w)||typeof w!=`object`)throw RangeError(`frame metadata must decode to an object`);let T=c(C);u(d,C,T,`metadata`);let E=[];for(let e=0;e<x;e++){if(T+8>d.byteLength)throw RangeError(`truncated buffer ${e} length`);let t=l(g,T,`buffer ${e} length`);if(T+=8,t>h)throw RangeError(`buffer ${e} length ${t} exceeds limit ${h}`);let n=T+t;if(n>d.byteLength)throw RangeError(`truncated buffer ${e}`);let i=d.byteOffset+T;if(i%r!==0)throw RangeError(`buffer ${e} is not 8-byte aligned`);E.push(new Uint8Array(d.buffer,i,t));let a=c(n);u(d,n,a,`buffer ${e}`),T=a}if(T!==d.byteLength)throw RangeError(`frame has ${d.byteLength-T} trailing bytes`);return{message:w,buffers:E,version:t,byteLength:d.byteLength}}var f={binary:[[255,255,255],[0,0,0]],gray:[[0,0,0],[25,25,25],[51,51,51],[76,76,76],[102,102,102],[128,128,128],[153,153,153],[179,179,179],[204,204,204],[230,230,230],[255,255,255]],viridis:[[68,1,84],[72,36,117],[65,68,135],[53,95,141],[42,120,142],[33,145,140],[34,168,132],[68,191,112],[122,209,81],[189,223,38],[253,231,37]],plasma:[[13,8,135],[65,4,157],[106,0,168],[143,13,164],[177,42,144],[204,71,120],[225,100,98],[242,132,75],[252,166,54],[252,206,37],[240,249,33]],inferno:[[0,0,4],[22,11,57],[66,10,104],[106,23,110],[147,38,103],[188,55,84],[221,81,58],[243,120,25],[252,165,10],[246,215,70],[252,255,164]],magma:[[0,0,4],[20,14,54],[59,15,112],[100,26,128],[140,41,129],[183,55,121],[222,73,104],[247,112,92],[254,159,109],[254,207,146],[252,253,191]],cividis:[[0,34,78],[8,51,112],[53,69,108],[79,87,108],[102,105,112],[125,124,120],[148,142,119],[174,163,113],[200,184,102],[229,207,82],[254,232,56]],coolwarm:[[59,76,192],[89,119,227],[123,159,249],[158,190,255],[192,212,245],[221,220,220],[242,203,183],[247,172,142],[238,132,104],[214,82,68],[180,4,38]],turbo:[[48,18,59],[69,89,203],[62,155,254],[25,213,205],[70,248,132],[164,252,60],[225,221,55],[254,164,49],[240,91,18],[195,37,3],[122,4,3]],rainbow:[[128,0,255],[78,77,252],[25,150,243],[24,205,228],[77,243,206],[128,255,180],[178,243,150],[230,205,115],[255,150,79],[255,77,39],[255,0,0]],jet:[[0,0,128],[0,0,241],[0,76,255],[0,176,255],[41,255,206],[125,255,122],[206,255,41],[255,196,0],[255,104,0],[241,8,0],[128,0,0]],rdgy:[[103,0,31],[177,24,43],[214,96,77],[243,164,129],[253,219,199],[254,254,254],[224,224,224],[185,185,185],[135,135,135],[76,76,76],[26,26,26]],rdbu:[[103,0,31],[177,24,43],[214,96,77],[243,164,129],[253,219,199],[246,247,247],[209,229,240],[144,196,221],[67,147,195],[32,101,171],[5,48,97]],blues:[[247,251,255],[227,238,249],[208,225,242],[183,212,234],[148,196,223],[106,174,214],[74,152,201],[46,126,188],[23,100,171],[8,74,145],[8,48,107]],purples:[[252,251,253],[242,240,247],[226,226,239],[206,207,229],[182,182,216],[158,154,200],[134,131,189],[114,98,172],[97,64,155],[79,31,139],[63,0,125]],pubu:[[255,247,251],[240,234,244],[219,218,235],[192,201,226],[156,185,217],[115,169,207],[66,149,195],[24,124,182],[5,103,162],[4,83,130],[2,56,88]],piyg:[[142,1,82],[196,26,124],[222,119,174],[241,181,217],[253,224,239],[247,247,246],[230,245,208],[183,224,133],[127,188,65],[76,145,33],[39,100,25]],prgn:[[64,0,75],[117,41,130],[153,112,171],[193,164,206],[231,212,232],[246,247,246],[217,240,211],[165,218,159],[90,174,97],[26,119,54],[0,68,27]],rdylgn:[[165,0,38],[214,47,39],[244,109,67],[253,173,96],[254,224,139],[254,255,190],[217,239,139],[165,216,106],[102,189,99],[25,151,80],[0,104,55]],spectral:[[158,1,66],[212,61,79],[244,109,67],[253,173,96],[254,224,139],[255,255,190],[230,245,152],[170,220,164],[102,194,165],[51,135,188],[94,79,162]]};function p(e){let t=typeof e==`string`&&e.endsWith(`_r`),n=f[t?e.slice(0,-2):e]||f.viridis;return t?[...n].reverse():n}function m(e){let t=p(e),n=new Uint8Array(256*4);for(let e=0;e<256;e++){let r=e/255*(t.length-1),i=Math.floor(r),a=Math.min(i+1,t.length-1),o=r-i;for(let r=0;r<3;r++)n[e*4+r]=Math.round(t[i][r]*(1-o)+t[a][r]*o);n[e*4+3]=255}return n}function h(e,t){let n=document.createElement(`span`);n.style.display=`none`,n.style.color=t,e.appendChild(n);let r=getComputedStyle(n).color;e.removeChild(n);let i=r.match(/rgba?\(([^)]+)\)/);if(!i)return null;let[a,o,s,c=1]=i[1].split(/[,/\s]+/).filter(Boolean).map(Number);return[a/255,o/255,s/255,c]}function g(e,t){return getComputedStyle(e).getPropertyValue(t).trim()||null}function _(e){let t=e.replace(`#`,``);if(!/^(?:[0-9a-fA-F]{3}|[0-9a-fA-F]{4}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})$/.test(t))return null;let n=t.length===3||t.length===4?[...t].map(e=>e+e).join(``):t,r=parseInt(n.slice(0,6),16),i=n.length===8?parseInt(n.slice(6,8),16)/255:1;return[(r>>16&255)/255,(r>>8&255)/255,(r&255)/255,i]}function v(e,t,n){if(!t||typeof t!=`string`)return n;let r=t.trim();return r?(r.startsWith(`#`)?_(r):h(e,r))||(typeof console<`u`&&console.warn&&console.warn(`xy: unresolvable color ${JSON.stringify(r)}; using fallback`),n):n}function y(e){let t=h(e,`currentColor`)||[.2,.2,.2,1],n=(e,t)=>[e[0],e[1],e[2],t],r=t=>{let n=g(e,t);return n&&h(e,n)||null};return{bg:r(`--chart-bg`),grid:r(`--chart-grid`)||n(t,.14),axis:r(`--chart-axis`)||n(t,.55),label:r(`--chart-text`)||n(t,.85)}}function b([e,t,n,r]){return`rgba(${Math.round(e*255)},${Math.round(t*255)},${Math.round(n*255)},${r})`}var x=`
 @layer base{
 :where(.xy [data-xy-slot="title"]){text-align:center;font-size:14px;font-weight:600;color:var(--chart-text,inherit)}
 :where(.xy [data-xy-slot="tooltip"]){max-width:calc(100% - 8px);max-height:calc(100% - 8px);box-sizing:border-box;white-space:normal;overflow-wrap:anywhere;overflow:auto;background:var(--chart-tooltip-bg,rgba(20,24,33,.92));color:var(--chart-tooltip-text,#fff);padding:5px 8px;border-radius:4px;font-size:11px;line-height:1.35;box-shadow:0 2px 8px rgba(0,0,0,.3)}
@@ -283,279 +51,8 @@ const XY_CHROME_CSS = `
    carries higher specificity; it stays outside the base layer because it
    overrides host CSS rather than providing an overridable default. */
 .cell-output-ipywidget-background:has(.xy[data-xy-own-bg]){background:transparent!important}
-`;
-function ensureChromeStylesheet(node) {
-let root = node && node.getRootNode ? node.getRootNode() : document;
-const isShadow = typeof ShadowRoot !== "undefined" && root instanceof ShadowRoot;
-if (!isShadow && !(root instanceof Document)) root = document;
-const scope = isShadow ? root : (root.head || document.head || root.documentElement);
-if (!scope || !scope.querySelector) return;
-if (scope.querySelector("style[data-xy-chrome]")) return;
-const style = document.createElement("style");
-style.setAttribute("data-xy-chrome", "");
-style.textContent = XY_CHROME_CSS;
-scope.appendChild(style);
-}
-function safeCssPaint(host, expr, fallback = [0.5, 0.5, 0.5, 1]) {
-const parsed = parseColor(host, expr, fallback);
-const color = Array.isArray(parsed) && parsed.length >= 4 && parsed.every(Number.isFinite)
-? parsed
-: fallback;
-return cssColor(color);
-}
-function niceStep(rough) {
-rough = Math.abs(rough);
-if (!Number.isFinite(rough) || rough <= 0) return 1;
-const mag = Math.pow(10, Math.floor(Math.log10(rough)));
-for (const m of [1, 2, 2.5, 5, 10]) {
-if (rough <= m * mag * (1 + 1e-12)) return m * mag;
-}
-return 10 * mag;
-}
-function linearTicks(lo, hi, target = 6) {
-if (!Number.isFinite(lo) || !Number.isFinite(hi)) return { ticks: [], step: 1 };
-const a = Math.min(lo, hi);
-const b = Math.max(lo, hi);
-if (a === b) return { ticks: [a], step: 1 };
-const step = niceStep((b - a) / target);
-const first = Math.ceil(a / step) * step;
-const out = [];
-for (let v = first; v <= b + step * 1e-9 && out.length < 200; v += step) {
-out.push(Math.abs(v) < step * 1e-9 ? 0 : v);
-}
-return { ticks: out, step };
-}
-function logTicks(lo, hi, target = 6) {
-if (!Number.isFinite(lo) || !Number.isFinite(hi)) return { ticks: [], step: 1 };
-const a = Math.min(lo, hi);
-const b = Math.max(lo, hi);
-if (a <= 0 || b <= 0) return { ticks: [], step: 1 };
-const e0 = Math.floor(Math.log10(a));
-const e1 = Math.ceil(Math.log10(b));
-const span = Math.max(1, e1 - e0);
-const mults = span <= Math.max(2, target) ? [1, 2, 5] : [1];
-const out = [];
-const labels = [];
-const labelEvery = Math.max(1, Math.ceil((e1 - e0 + 1) / Math.max(1, target)));
-for (let e = e0; e <= e1 && out.length < 200; e++) {
-const base = Math.pow(10, e);
-for (const m of mults) {
-const v = m * base;
-if (v >= a * (1 - 1e-12) && v <= b * (1 + 1e-12)) {
-out.push(v);
-if (m === 1 && (e - e0) % labelEvery === 0) labels.push(v);
-}
-if (out.length >= 200) break;
-}
-}
-return { ticks: out, labels: labels.length ? labels : out, step: 1, log: true };
-}
-function categoryTicks(lo, hi, categories, target = 6) {
-if (!categories || !categories.length) return { ticks: [], step: 1 };
-const start = Math.max(0, Math.ceil(Math.min(lo, hi)));
-const stop = Math.min(categories.length - 1, Math.floor(Math.max(lo, hi)));
-if (stop < start) return { ticks: [], step: 1 };
-const visible = stop - start + 1;
-const step = Math.max(1, Math.ceil(visible / Math.max(1, target)));
-const out = [];
-for (let v = start; v <= stop && out.length < 200; v += step) out.push(v);
-return { ticks: out, step };
-}
-const MS = { s: 1e3, m: 6e4, h: 36e5, d: 864e5 };
-const TIME_STEPS = [
-1, 2, 5, 10, 20, 50, 100, 200, 500,
-MS.s, 2 * MS.s, 5 * MS.s, 10 * MS.s, 15 * MS.s, 30 * MS.s,
-MS.m, 2 * MS.m, 5 * MS.m, 10 * MS.m, 15 * MS.m, 30 * MS.m,
-MS.h, 2 * MS.h, 3 * MS.h, 6 * MS.h, 12 * MS.h,
-MS.d, 2 * MS.d, 7 * MS.d, 14 * MS.d,
-];
-function timeTicks(lo, hi, target = 6) {
-if (!Number.isFinite(lo) || !Number.isFinite(hi)) return { ticks: [], step: MS.d };
-const a = Math.min(lo, hi);
-const b = Math.max(lo, hi);
-const span = b - a;
-const rough = span / target;
-if (rough > 14 * MS.d) return calendarTicks(a, b, rough);
-let step = TIME_STEPS[TIME_STEPS.length - 1];
-for (const s of TIME_STEPS) {
-if (s >= rough) { step = s; break; }
-}
-const first = Math.ceil(a / step) * step;
-const out = [];
-for (let v = first; v <= b && out.length < 200; v += step) out.push(v);
-return { ticks: out, step };
-}
-function calendarTicks(lo, hi, rough) {
-const monthsRough = rough / (30 * MS.d);
-const monthSteps = [1, 2, 3, 6, 12, 24, 60, 120];
-let stepM = monthSteps[monthSteps.length - 1];
-for (const s of monthSteps) {
-if (s >= monthsRough) { stepM = s; break; }
-}
-const d = new Date(lo);
-let y = d.getUTCFullYear();
-let m = d.getUTCMonth();
-m = Math.ceil(m / stepM) * stepM;
-const out = [];
-for (;;) {
-const t = Date.UTC(y + Math.floor(m / 12), m % 12, 1);
-if (t > hi) break;
-if (t >= lo) out.push(t);
-m += stepM;
-if (out.length > 1000) break;
-}
-return { ticks: out, step: stepM * 30 * MS.d };
-}
-function fmtTime(ms, step) {
-const d = new Date(ms);
-const pad = (n, w = 2) => String(n).padStart(w, "0");
-if (step >= 28 * MS.d) {
-const mo = d.getUTCMonth();
-return mo === 0 ? String(d.getUTCFullYear())
-: `${d.toLocaleString("en", { month: "short", timeZone: "UTC" })} ${d.getUTCFullYear()}`;
-}
-if (step >= MS.d) return `${d.toLocaleString("en", { month: "short", timeZone: "UTC" })} ${pad(d.getUTCDate())}`;
-if (step >= MS.m) return `${pad(d.getUTCHours())}:${pad(d.getUTCMinutes())}`;
-if (step >= MS.s) return `${pad(d.getUTCHours())}:${pad(d.getUTCMinutes())}:${pad(d.getUTCSeconds())}`;
-return `${pad(d.getUTCMinutes())}:${pad(d.getUTCSeconds())}.${pad(d.getUTCMilliseconds(), 3)}`;
-}
-function fmtLinear(v, step) {
-const av = Math.abs(v);
-if (av >= 1e6 || (av !== 0 && av < 1e-4)) return v.toExponential(1).replace("e+", "e");
-let dec = step ? Math.max(0, Math.ceil(-Math.log10(Math.abs(step)))) : 0;
-while (dec < 8 && Math.abs(Number(step.toFixed(dec)) - step) > Math.abs(step) / 1000) dec++;
-return v.toFixed(Math.min(dec, 8));
-}
-function fmtGeneral(v, precision = 6) {
-const value = Number(v);
-if (!Number.isFinite(value)) return String(v);
-if (value === 0) return Object.is(value, -0) ? "-0" : "0";
-let [coefficient, exponentText] = value.toExponential(precision - 1).split("e");
-const exponent = Number(exponentText);
-if (exponent < -4 || exponent >= precision) {
-coefficient = coefficient.replace(/0+$/, "").replace(/\.$/, "");
-return `${coefficient}e${exponent >= 0 ? "+" : "-"}${String(Math.abs(exponent)).padStart(2, "0")}`;
-}
-const decimals = Math.max(0, precision - exponent - 1);
-let text = Number(value.toPrecision(precision)).toFixed(decimals);
-if (text.includes(".")) text = text.replace(/0+$/, "").replace(/\.$/, "");
-return text;
-}
-function fmtCategory(v, categories) {
-const i = Math.round(v);
-return i >= 0 && i < categories.length ? String(categories[i]) : "";
-}
-function fmtNumberSpec(v, format) {
-if (typeof format !== "string" || !Number.isFinite(Number(v))) return null;
-const percent = format.endsWith("%");
-const raw = percent ? format.slice(0, -1) : format;
-const match = raw.match(/^(,)?\.([0-9]+)f?$/);
-if (!match) return null;
-const digits = Number(match[2]);
-const value = percent ? Number(v) * 100 : Number(v);
-const text = match[1]
-? value.toLocaleString(undefined, {
-minimumFractionDigits: digits,
-maximumFractionDigits: digits,
-})
-: value.toFixed(digits);
-return percent ? `${text}%` : text;
-}
-function fmtTimeSpec(ms, format) {
-if (typeof format !== "string") return null;
-const d = new Date(ms);
-if (!Number.isFinite(d.getTime())) return null;
-const pad = (n, w = 2) => String(n).padStart(w, "0");
-const shortMonth = d.toLocaleString("en", { month: "short", timeZone: "UTC" });
-const longMonth = d.toLocaleString("en", { month: "long", timeZone: "UTC" });
-return format.replace(/%[YmdHMSbB]/g, (token) => {
-switch (token) {
-case "%Y": return String(d.getUTCFullYear());
-case "%m": return pad(d.getUTCMonth() + 1);
-case "%d": return pad(d.getUTCDate());
-case "%H": return pad(d.getUTCHours());
-case "%M": return pad(d.getUTCMinutes());
-case "%S": return pad(d.getUTCSeconds());
-case "%b": return shortMonth;
-case "%B": return longMonth;
-default: return token;
-}
-});
-}
-function fmtAxis(axis, v, tickStep) {
-if (axis && axis.kind === "category") return fmtCategory(v, axis.categories || []);
-if (axis && axis.kind === "time") return fmtTimeSpec(v, axis.format) || fmtTime(v, tickStep);
-const formatted = fmtNumberSpec(v, axis && axis.format);
-if (axis && axis.scale === "log" && Number(v) > 0 && Number(v) < 1 && formatted === "0") {
-return fmtLinear(v, tickStep);
-}
-return formatted || fmtLinear(v, tickStep);
-}
-function fmtValue(v, kind) {
-if (kind === "time_ms") {
-const d = new Date(v);
-return d.toISOString().replace("T", " ").replace(".000Z", "Z");
-}
-if (typeof v === "string") return v;
-const n = Number(v);
-if (!Number.isFinite(n)) return String(v);
-if (n === 0) return "0";
-const av = Math.abs(n);
-if (av >= 1e6 || av < 1e-4) return n.toExponential(3);
-return (Math.round(n * 1e4) / 1e4).toString();
-}
-function compile(gl, type, src) {
-const sh = gl.createShader(type);
-gl.shaderSource(sh, src);
-gl.compileShader(sh);
-if (!gl.getShaderParameter(sh, gl.COMPILE_STATUS)) {
-throw new Error("shader compile: " + gl.getShaderInfoLog(sh) + "\n" + src);
-}
-return sh;
-}
-const ATTR_SLOTS = {
-ax: 0, ay: 1,
-ax0: 0, ax1: 1, ay0: 2, ay1: 3, ax2: 4, ay2: 5, ab0: 4, ab1: 5,
-a_pos: 0, a_v1: 1, a_v0: 2,
-a_corner: 0,
-a_cval: 6, a_sval: 7, a_sel: 8, a_dval: 9,
-a_len0: 10, a_len1: 11,
-a_dash0: 10, a_dashDir: 11,
-a_prevx: 4, a_prevy: 5, a_prevx1: 7, a_prevy1: 8,
-a_rgba: 12, a_style: 13, a_stroke: 14, a_radius: 15,
-};
-function makeProgram(gl, vs, fs) {
-const p = gl.createProgram();
-const vsh = compile(gl, gl.VERTEX_SHADER, vs);
-const fsh = compile(gl, gl.FRAGMENT_SHADER, fs);
-gl.attachShader(p, vsh);
-gl.attachShader(p, fsh);
-for (const [name, slot] of Object.entries(ATTR_SLOTS)) {
-gl.bindAttribLocation(p, slot, name);
-}
-gl.linkProgram(p);
-const ok = gl.getProgramParameter(p, gl.LINK_STATUS);
-const info = gl.getProgramInfoLog(p);
-gl.detachShader(p, vsh);
-gl.detachShader(p, fsh);
-gl.deleteShader(vsh);
-gl.deleteShader(fsh);
-if (!ok) {
-gl.deleteProgram(p);
-throw new Error("program link: " + info);
-}
-p._u = Object.create(null);
-return p;
-}
-function uniformOf(gl, prog, name) {
-let loc = prog._u[name];
-if (loc === undefined) {
-loc = gl.getUniformLocation(prog, name);
-prog._u[name] = loc;
-}
-return loc;
-}
-const AXIS_GLSL = `
+`;function S(e){let t=e&&e.getRootNode?e.getRootNode():document,n=typeof ShadowRoot<`u`&&t instanceof ShadowRoot;!n&&!(t instanceof Document)&&(t=document);let r=n?t:t.head||document.head||t.documentElement;if(!r||!r.querySelector||r.querySelector(`style[data-xy-chrome]`))return;let i=document.createElement(`style`);i.setAttribute(`data-xy-chrome`,``),i.textContent=x,r.appendChild(i)}function C(e,t,n=[.5,.5,.5,1]){let r=v(e,t,n);return b(Array.isArray(r)&&r.length>=4&&r.every(Number.isFinite)?r:n)}function w(e){if(e=Math.abs(e),!Number.isFinite(e)||e<=0)return 1;let t=10**Math.floor(Math.log10(e));for(let n of[1,2,2.5,5,10])if(e<=n*t*1.000000000001)return n*t;return 10*t}function T(e,t,n=6){if(!Number.isFinite(e)||!Number.isFinite(t))return{ticks:[],step:1};let r=Math.min(e,t),i=Math.max(e,t);if(r===i)return{ticks:[r],step:1};let a=w((i-r)/n),o=Math.ceil(r/a)*a,s=[];for(let e=o;e<=i+a*1e-9&&s.length<200;e+=a)s.push(Math.abs(e)<a*1e-9?0:e);return{ticks:s,step:a}}function E(e,t,n=6){if(!Number.isFinite(e)||!Number.isFinite(t))return{ticks:[],step:1};let r=Math.min(e,t),i=Math.max(e,t);if(r<=0||i<=0)return{ticks:[],step:1};let a=Math.floor(Math.log10(r)),o=Math.ceil(Math.log10(i)),s=Math.max(1,o-a)<=Math.max(2,n)?[1,2,5]:[1],c=[],l=[],u=Math.max(1,Math.ceil((o-a+1)/Math.max(1,n)));for(let e=a;e<=o&&c.length<200;e++){let t=10**e;for(let n of s){let o=n*t;if(o>=r*.999999999999&&o<=i*1.000000000001&&(c.push(o),n===1&&(e-a)%u===0&&l.push(o)),c.length>=200)break}}return{ticks:c,labels:l.length?l:c,step:1,log:!0}}function D(e,t,n,r=6){if(!n||!n.length)return{ticks:[],step:1};let i=Math.max(0,Math.ceil(Math.min(e,t))),a=Math.min(n.length-1,Math.floor(Math.max(e,t)));if(a<i)return{ticks:[],step:1};let o=a-i+1,s=Math.max(1,Math.ceil(o/Math.max(1,r))),c=[];for(let e=i;e<=a&&c.length<200;e+=s)c.push(e);return{ticks:c,step:s}}var O={s:1e3,m:6e4,h:36e5,d:864e5},k=[1,2,5,10,20,50,100,200,500,O.s,2*O.s,5*O.s,10*O.s,15*O.s,30*O.s,O.m,2*O.m,5*O.m,10*O.m,15*O.m,30*O.m,O.h,2*O.h,3*O.h,6*O.h,12*O.h,O.d,2*O.d,7*O.d,14*O.d];function A(e,t,n=6){if(!Number.isFinite(e)||!Number.isFinite(t))return{ticks:[],step:O.d};let r=Math.min(e,t),i=Math.max(e,t),a=(i-r)/n;if(a>14*O.d)return j(r,i,a);let o=k[k.length-1];for(let e of k)if(e>=a){o=e;break}let s=Math.ceil(r/o)*o,c=[];for(let e=s;e<=i&&c.length<200;e+=o)c.push(e);return{ticks:c,step:o}}function j(e,t,n){let r=n/(30*O.d),i=[1,2,3,6,12,24,60,120],a=i[i.length-1];for(let e of i)if(e>=r){a=e;break}let o=new Date(e),s=o.getUTCFullYear(),c=o.getUTCMonth();c=Math.ceil(c/a)*a;let l=[];for(;;){let n=Date.UTC(s+Math.floor(c/12),c%12,1);if(n>t||(n>=e&&l.push(n),c+=a,l.length>1e3))break}return{ticks:l,step:a*30*O.d}}function ee(e,t){let n=new Date(e),r=(e,t=2)=>String(e).padStart(t,`0`);return t>=28*O.d?n.getUTCMonth()===0?String(n.getUTCFullYear()):`${n.toLocaleString(`en`,{month:`short`,timeZone:`UTC`})} ${n.getUTCFullYear()}`:t>=O.d?`${n.toLocaleString(`en`,{month:`short`,timeZone:`UTC`})} ${r(n.getUTCDate())}`:t>=O.m?`${r(n.getUTCHours())}:${r(n.getUTCMinutes())}`:t>=O.s?`${r(n.getUTCHours())}:${r(n.getUTCMinutes())}:${r(n.getUTCSeconds())}`:`${r(n.getUTCMinutes())}:${r(n.getUTCSeconds())}.${r(n.getUTCMilliseconds(),3)}`}function M(e,t){let n=Math.abs(e);if(n>=1e6||n!==0&&n<1e-4)return e.toExponential(1).replace(`e+`,`e`);let r=t?Math.max(0,Math.ceil(-Math.log10(Math.abs(t)))):0;for(;r<8&&Math.abs(Number(t.toFixed(r))-t)>Math.abs(t)/1e3;)r++;return e.toFixed(Math.min(r,8))}function te(e,t=6){let n=Number(e);if(!Number.isFinite(n))return String(e);if(n===0)return Object.is(n,-0)?`-0`:`0`;let[r,i]=n.toExponential(t-1).split(`e`),a=Number(i);if(a<-4||a>=t)return r=r.replace(/0+$/,``).replace(/\.$/,``),`${r}e${a>=0?`+`:`-`}${String(Math.abs(a)).padStart(2,`0`)}`;let o=Math.max(0,t-a-1),s=Number(n.toPrecision(t)).toFixed(o);return s.includes(`.`)&&(s=s.replace(/0+$/,``).replace(/\.$/,``)),s}function ne(e,t){let n=Math.round(e);return n>=0&&n<t.length?String(t[n]):``}function re(e,t){if(typeof t!=`string`||!Number.isFinite(Number(e)))return null;let n=t.endsWith(`%`),r=(n?t.slice(0,-1):t).match(/^(,)?\.([0-9]+)f?$/);if(!r)return null;let i=Number(r[2]),a=n?Number(e)*100:Number(e),o=r[1]?a.toLocaleString(void 0,{minimumFractionDigits:i,maximumFractionDigits:i}):a.toFixed(i);return n?`${o}%`:o}function ie(e,t){if(typeof t!=`string`)return null;let n=new Date(e);if(!Number.isFinite(n.getTime()))return null;let r=(e,t=2)=>String(e).padStart(t,`0`),i=n.toLocaleString(`en`,{month:`short`,timeZone:`UTC`}),a=n.toLocaleString(`en`,{month:`long`,timeZone:`UTC`});return t.replace(/%[YmdHMSbB]/g,e=>{switch(e){case`%Y`:return String(n.getUTCFullYear());case`%m`:return r(n.getUTCMonth()+1);case`%d`:return r(n.getUTCDate());case`%H`:return r(n.getUTCHours());case`%M`:return r(n.getUTCMinutes());case`%S`:return r(n.getUTCSeconds());case`%b`:return i;case`%B`:return a;default:return e}})}function ae(e,t,n){if(e&&e.kind===`category`)return ne(t,e.categories||[]);if(e&&e.kind===`time`)return ie(t,e.format)||ee(t,n);let r=re(t,e&&e.format);return e&&e.scale===`log`&&Number(t)>0&&Number(t)<1&&r===`0`?M(t,n):r||M(t,n)}function N(e,t){if(t===`time_ms`)return new Date(e).toISOString().replace(`T`,` `).replace(`.000Z`,`Z`);if(typeof e==`string`)return e;let n=Number(e);if(!Number.isFinite(n))return String(e);if(n===0)return`0`;let r=Math.abs(n);return r>=1e6||r<1e-4?n.toExponential(3):(Math.round(n*1e4)/1e4).toString()}function oe(e,t,n){let r=e.createShader(t);if(e.shaderSource(r,n),e.compileShader(r),!e.getShaderParameter(r,e.COMPILE_STATUS))throw Error(`shader compile: `+e.getShaderInfoLog(r)+`
+`+n);return r}var P={ax:0,ay:1,ax0:0,ax1:1,ay0:2,ay1:3,ax2:4,ay2:5,ab0:4,ab1:5,a_pos:0,a_v1:1,a_v0:2,a_corner:0,a_cval:6,a_sval:7,a_sel:8,a_dval:9,a_len0:10,a_len1:11,a_dash0:10,a_dashDir:11,a_prevx:4,a_prevy:5,a_prevx1:7,a_prevy1:8,a_rgba:12,a_style:13,a_stroke:14,a_radius:15};function se(e,t,n){let r=e.createProgram(),i=oe(e,e.VERTEX_SHADER,t),a=oe(e,e.FRAGMENT_SHADER,n);e.attachShader(r,i),e.attachShader(r,a);for(let[t,n]of Object.entries(P))e.bindAttribLocation(r,n,t);e.linkProgram(r);let o=e.getProgramParameter(r,e.LINK_STATUS),s=e.getProgramInfoLog(r);if(e.detachShader(r,i),e.detachShader(r,a),e.deleteShader(i),e.deleteShader(a),!o)throw e.deleteProgram(r),Error(`program link: `+s);return r._u=Object.create(null),r}function F(e,t,n){let r=t._u[n];return r===void 0&&(r=e.getUniformLocation(t,n),t._u[n]=r),r}var I=`
 float xyDecode(float encoded, vec2 meta) {
   return encoded / max(abs(meta.y), 1e-30) + meta.x;
 }
@@ -575,8 +72,7 @@ float xyViewValue(float coord, int mode) {
   if (mode == 1) return pow(10.0, coord);
   return coord;
 }
-`;
-const POINT_VS = `#version 300 es
+`,ce=`#version 300 es
 in float ax; in float ay; in float a_prevx; in float a_prevy;
 in float a_cval; in float a_sval; in float a_sel; in float a_dval;
 in vec4 a_rgba; in vec4 a_style; in vec4 a_stroke;
@@ -588,7 +84,7 @@ uniform float u_selectedOpacity; uniform float u_unselectedOpacity;
 uniform float u_transitionProgress; uniform int u_transitionActive;
 out float v_lutCoord; out float v_dim; out float v_dval; out float v_ptSize; out float v_sel;
 out vec4 v_rgba; out vec4 v_style; out vec4 v_stroke;
-${AXIS_GLSL}
+${I}
 void main() {
   float x = u_transitionActive == 1 ? mix(a_prevx, ax, u_transitionProgress) : ax;
   float y = u_transitionActive == 1 ? mix(a_prevy, ay, u_transitionProgress) : ay;
@@ -607,8 +103,17 @@ void main() {
   v_dval = a_dval;
   // Unselected marks dim when a selection is active (§34 selected/unselected styling).
   v_dim = u_selActive == 1 ? mix(u_unselectedOpacity, u_selectedOpacity, step(0.5, a_sel)) : 1.0;
-}`;
-const MARKER_SDF_GLSL = `
+}`,le=`#version 300 es
+precision highp float; precision highp int;
+uniform vec4 u_color; uniform int u_colorMode; uniform sampler2D u_lut; uniform float u_opacity;
+uniform sampler2D u_dlut; uniform float u_dblend;
+uniform int u_symbol; uniform vec4 u_ptStroke; uniform float u_ptStrokeWidth; uniform int u_ptStrokeFace;
+uniform int u_strokeMode; uniform float u_strokeOpacity;
+uniform int u_selActive; uniform vec4 u_selColor; uniform vec4 u_unselColor;
+in float v_lutCoord; in float v_dim; in float v_dval; in float v_ptSize; in float v_sel;
+in vec4 v_rgba; in vec4 v_style; in vec4 v_stroke;
+out vec4 outColor;
+
 float xySegmentDistance(vec2 p, vec2 a, vec2 b) {
   vec2 e = b - a;
   return length(p - a - e * clamp(dot(p - a, e) / dot(e, e), 0.0, 1.0));
@@ -684,18 +189,7 @@ float xyMarkerSdf(vec2 d, int shape) {
   if (shape == 13) return max(abs(d.x), abs(d.y)) - 0.5;            // snapped pixel
   if (shape == 14) return (abs(d.x) / 0.6 + abs(d.y)) - 0.5;        // thin diamond
   return length(d) - 0.5;                                           // circle
-}`;
-const POINT_FS = `#version 300 es
-precision highp float; precision highp int;
-uniform vec4 u_color; uniform int u_colorMode; uniform sampler2D u_lut; uniform float u_opacity;
-uniform sampler2D u_dlut; uniform float u_dblend;
-uniform int u_symbol; uniform vec4 u_ptStroke; uniform float u_ptStrokeWidth; uniform int u_ptStrokeFace;
-uniform int u_strokeMode; uniform float u_strokeOpacity;
-uniform int u_selActive; uniform vec4 u_selColor; uniform vec4 u_unselColor;
-in float v_lutCoord; in float v_dim; in float v_dval; in float v_ptSize; in float v_sel;
-in vec4 v_rgba; in vec4 v_style; in vec4 v_stroke;
-out vec4 outColor;
-${MARKER_SDF_GLSL}
+}
 void main() {
   vec2 d = gl_PointCoord - 0.5;
   float sd;
@@ -757,21 +251,19 @@ void main() {
     return;
   }
   outColor = px * (shapeCov * v_dim);
-}`;
-const POINT_SIMPLE_VS = `#version 300 es
+}`,ue=`#version 300 es
 in float ax; in float ay; in float a_prevx; in float a_prevy;
 uniform vec2 u_xmap; uniform vec2 u_ymap;
 uniform vec2 u_xmeta; uniform vec2 u_ymeta; uniform int u_xmode; uniform int u_ymode;
 uniform float u_size; uniform float u_dpr;
 uniform float u_transitionProgress; uniform int u_transitionActive;
-${AXIS_GLSL}
+${I}
 void main() {
   float x = u_transitionActive == 1 ? mix(a_prevx, ax, u_transitionProgress) : ax;
   float y = u_transitionActive == 1 ? mix(a_prevy, ay, u_transitionProgress) : ay;
   gl_Position = vec4(xyMap(x, u_xmap, u_xmeta, u_xmode), xyMap(y, u_ymap, u_ymeta, u_ymode), 0.0, 1.0);
   gl_PointSize = u_size * u_dpr;
-}`;
-const POINT_SIMPLE_FS = `#version 300 es
+}`,de=`#version 300 es
 precision highp float;
 uniform vec4 u_color;
 out vec4 outColor;
@@ -781,15 +273,14 @@ void main() {
   float coverage = clamp(0.5 - sd / aa, 0.0, 1.0);
   if (coverage <= 0.001) discard;
   outColor = vec4(u_color.rgb * u_color.a, u_color.a) * coverage;
-}`;
-const PICK_VS = `#version 300 es
+}`,fe=`#version 300 es
 in float ax; in float ay; in float a_prevx; in float a_prevy; in float a_sval;
 uniform vec2 u_xmap; uniform vec2 u_ymap;
 uniform vec2 u_xmeta; uniform vec2 u_ymeta; uniform int u_xmode; uniform int u_ymode;
 uniform float u_size; uniform int u_sizeMode; uniform vec2 u_sizeRange; uniform float u_dpr;
 uniform float u_transitionProgress; uniform int u_transitionActive;
 flat out int v_id;
-${AXIS_GLSL}
+${I}
 void main() {
   float x = u_transitionActive == 1 ? mix(a_prevx, ax, u_transitionProgress) : ax;
   float y = u_transitionActive == 1 ? mix(a_prevy, ay, u_transitionProgress) : ay;
@@ -797,8 +288,7 @@ void main() {
   float sz = u_sizeMode == 1 ? mix(u_sizeRange.x, u_sizeRange.y, a_sval) : u_size;
   gl_PointSize = max(sz, 6.0) * u_dpr; // enlarge hit target
   v_id = gl_VertexID;
-}`;
-const PICK_FS = `#version 300 es
+}`,pe=`#version 300 es
 precision highp float; precision highp int;
 uniform int u_pick_base;
 flat in int v_id;
@@ -813,20 +303,18 @@ void main() {
     float((id >> 16) & 255) / 255.0,
     float((id >> 24) & 255) / 255.0
   );
-}`;
-const GRID_VS = `#version 300 es
+}`,me=`#version 300 es
 in vec2 a_corner;
 uniform vec4 u_view; // x0,x1,y0,y1
 uniform int u_xmode; uniform int u_ymode;
 out vec2 v_data;
-${AXIS_GLSL}
+${I}
 void main() {
   gl_Position = vec4(a_corner * 2.0 - 1.0, 0.0, 1.0);
   float x = mix(xyViewCoord(u_view.x, u_xmode), xyViewCoord(u_view.y, u_xmode), a_corner.x);
   float y = mix(xyViewCoord(u_view.z, u_ymode), xyViewCoord(u_view.w, u_ymode), a_corner.y);
   v_data = vec2(xyViewValue(x, u_xmode), xyViewValue(y, u_ymode));
-}`;
-const DENSITY_FS = `#version 300 es
+}`,he=`#version 300 es
 precision highp float;
 uniform sampler2D u_grid; uniform sampler2D u_lut;
 uniform vec4 u_gridRange; // gx0,gx1,gy0,gy1
@@ -846,8 +334,7 @@ void main() {
   float alpha = u_opacity * paint.a * clamp(t * 1.35, 0.0, 1.0);
   if (alpha <= 0.01) discard;
   outColor = vec4(rgb * alpha, alpha);
-}`;
-const HEATMAP_FS = `#version 300 es
+}`,ge=`#version 300 es
 precision highp float;
 uniform sampler2D u_grid; uniform sampler2D u_lut;
 uniform vec4 u_gridRange; // gx0,gx1,gy0,gy1
@@ -871,8 +358,7 @@ void main() {
   float t = clamp((raw * 255.0 - 1.0) / 254.0, 0.0, 1.0);
   vec3 rgb = texture(u_lut, vec2(t, 0.5)).rgb;
   outColor = vec4(rgb * u_opacity, u_opacity);
-}`;
-const LINE_VS = `#version 300 es
+}`,_e=`#version 300 es
 in float ax0; in float ay0; in float ax1; in float ay1;
 in float a_prevx; in float a_prevy; in float a_prevx1; in float a_prevy1;
 uniform vec2 u_xmap; uniform vec2 u_ymap; uniform vec2 u_res; uniform float u_width;
@@ -883,7 +369,7 @@ uniform vec2 u_xmeta; uniform vec2 u_ymeta; uniform int u_xmode; uniform int u_y
 in float a_len0; in float a_len1;
 out float v_off; out float v_dash;
 const vec2 corners[4] = vec2[4](vec2(0.,-1.), vec2(0.,1.), vec2(1.,-1.), vec2(1.,1.));
-${AXIS_GLSL}
+${I}
 void main() {
   float px0 = u_transitionActive == 1 ? mix(a_prevx, ax0, u_transitionProgress) : ax0;
   float py0 = u_transitionActive == 1 ? mix(a_prevy, ay0, u_transitionProgress) : ay0;
@@ -908,8 +394,7 @@ void main() {
   // CPU-computed per-vertex lengths so dashes stay continuous across segments
   // and constant on screen through zoom.
   v_dash = mix(a_len0, mix(a_len0, a_len1, reveal), c.x);
-}`;
-const LINE_FS = `#version 300 es
+}`,ve=`#version 300 es
 precision highp float; precision highp int;
 uniform vec4 u_color; uniform float u_width;
 uniform int u_dashCount; uniform float u_dashArr[8]; uniform float u_dashPeriod;
@@ -937,8 +422,7 @@ void main() {
   }
   if (alpha <= 0.001) discard;
   outColor = vec4(u_color.rgb * alpha, alpha);
-}`;
-const SEGMENT_VS = `#version 300 es
+}`,ye=`#version 300 es
 in float ax0; in float ay0; in float ax1; in float ay1; in float a_cval; in vec4 a_rgba; in vec4 a_style;
 in float a_dash0; in float a_dashDir;
 uniform vec2 u_xmap; uniform vec2 u_ymap; uniform vec2 u_res; uniform float u_width;
@@ -948,7 +432,7 @@ uniform vec2 u_x0meta; uniform vec2 u_x1meta; uniform vec2 u_y0meta; uniform vec
 uniform int u_x0mode; uniform int u_x1mode; uniform int u_y0mode; uniform int u_y1mode;
 out float v_off; out float v_cval; out float v_dash; out vec4 v_rgba; out vec4 v_style;
 const vec2 corners[4] = vec2[4](vec2(0.,-1.), vec2(0.,1.), vec2(1.,-1.), vec2(1.,1.));
-${AXIS_GLSL}
+${I}
 void main() {
   vec2 p0 = vec2(xyMap(ax0, u_xmap, u_x0meta, u_x0mode), xyMap(ay0, u_ymap, u_y0meta, u_y0mode));
   vec2 p1 = vec2(xyMap(ax1, u_xmap, u_x1meta, u_x1mode), xyMap(ay1, u_ymap, u_y1meta, u_y1mode));
@@ -970,8 +454,7 @@ void main() {
   v_cval = u_colorMode == 2 ? (a_cval + 0.5) / 256.0 : a_cval;
   v_dash = a_dash0 + c.x * len * a_dashDir;
   v_rgba = a_rgba; v_style = a_style;
-}`;
-const SEGMENT_FS = `#version 300 es
+}`,be=`#version 300 es
 precision highp float; precision highp int;
 uniform vec4 u_color; uniform float u_width; uniform int u_colorMode; uniform sampler2D u_lut; uniform float u_opacity;
 uniform int u_dashCount; uniform float u_dashArr[8]; uniform float u_dashPeriod;
@@ -998,8 +481,7 @@ void main() {
   }
   if (alpha <= 0.001) discard;
   outColor = vec4(rgb * alpha, alpha);
-}`;
-const MESH_VS = `#version 300 es
+}`,xe=`#version 300 es
 in float ax0; in float ay0; in float ax1; in float ay1; in float ax2; in float ay2; in float a_cval;
 in vec4 a_rgba; in vec4 a_style; in vec4 a_stroke;
 uniform vec2 u_xmap; uniform vec2 u_ymap;
@@ -1009,7 +491,7 @@ uniform int u_x0mode; uniform int u_x1mode; uniform int u_x2mode;
 uniform int u_y0mode; uniform int u_y1mode; uniform int u_y2mode;
 uniform int u_colorMode;
 out float v_cval; out vec3 v_bary; out vec4 v_rgba; out vec4 v_style; out vec4 v_stroke;
-${AXIS_GLSL}
+${I}
 void main() {
   int vertex = gl_VertexID % 3;
   float x = vertex == 0 ? ax0 : (vertex == 1 ? ax1 : ax2);
@@ -1022,8 +504,7 @@ void main() {
   v_cval = u_colorMode == 2 ? (a_cval + 0.5) / 256.0 : a_cval;
   v_bary = vertex == 0 ? vec3(1.,0.,0.) : (vertex == 1 ? vec3(0.,1.,0.) : vec3(0.,0.,1.));
   v_rgba = a_rgba; v_style = a_style; v_stroke = a_stroke;
-}`;
-const MESH_FS = `#version 300 es
+}`,Se=`#version 300 es
 precision highp float; precision highp int;
 uniform vec4 u_color; uniform int u_colorMode; uniform sampler2D u_lut; uniform float u_opacity;
 uniform vec4 u_stroke; uniform float u_strokeWidth; uniform int u_strokeMode; uniform float u_strokeOpacity;
@@ -1046,8 +527,7 @@ void main() {
   } else {
     outColor = fill;
   }
-}`;
-const GRAD_GLSL = `
+}`,Ce=`
 uniform int u_gradMode; uniform int u_gradDir; uniform int u_gradCount;
 uniform float u_gradPos[8]; uniform vec4 u_gradColor[8];
 vec4 xyGradSample(float t) {
@@ -1070,8 +550,7 @@ float xyGradT(float markT, vec2 res) {
     t = u_gradDir == 0 ? 1.0 - markT : markT;
   }
   return clamp(t, 0.0, 1.0);
-}`;
-const AREA_VS = `#version 300 es
+}`,we=`#version 300 es
 in float ax0; in float ax1; in float ay0; in float ay1; in float ab0; in float ab1;
 uniform vec2 u_xmap; uniform vec2 u_ymap; uniform vec2 u_bmap;
 uniform vec2 u_xmeta; uniform vec2 u_ymeta; uniform vec2 u_bmeta;
@@ -1079,7 +558,7 @@ uniform int u_xmode; uniform int u_ymode;
 uniform float u_revealProgress; uniform float u_revealSegments;
 out float v_top; out float v_base; out float v_pos;
 const vec2 corners[4] = vec2[4](vec2(0.,0.), vec2(1.,0.), vec2(0.,1.), vec2(1.,1.));
-${AXIS_GLSL}
+${I}
 void main() {
   vec2 c = corners[gl_VertexID];
   float x0 = xyMap(ax0, u_xmap, u_xmeta, u_xmode);
@@ -1104,14 +583,13 @@ void main() {
   v_base = base;
   v_pos = clipY;
   gl_Position = vec4(mix(x0, x1, c.x), clipY, 0.0, 1.0);
-}`;
-const AREA_FS = `#version 300 es
+}`,Te=`#version 300 es
 precision highp float; precision highp int;
 uniform vec4 u_color;
 uniform vec2 u_res;
 in float v_top; in float v_base; in float v_pos;
 out vec4 outColor;
-${GRAD_GLSL}
+${Ce}
 void main() {
   vec4 premult = vec4(u_color.rgb * u_color.a, u_color.a);
   if (u_gradMode != 0) {
@@ -1123,8 +601,7 @@ void main() {
   }
   if (premult.a <= 0.001) discard;
   outColor = premult;
-}`;
-const RECT_VS = `#version 300 es
+}`,Ee=`#version 300 es
 in float ax0; in float ax1; in float ay0; in float ay1;
 uniform vec2 u_x0map; uniform vec2 u_x1map; uniform vec2 u_y0map; uniform vec2 u_y1map;
 uniform vec2 u_x0meta; uniform vec2 u_x1meta; uniform vec2 u_y0meta; uniform vec2 u_y1meta;
@@ -1137,7 +614,7 @@ out float v_lutCoord;
 out vec2 v_local; out vec2 v_half; out float v_t;
 out vec4 v_rgba; out vec4 v_style; out vec4 v_stroke; out vec2 v_radius;
 const vec2 corners[4] = vec2[4](vec2(0.,0.), vec2(1.,0.), vec2(0.,1.), vec2(1.,1.));
-${AXIS_GLSL}
+${I}
 void main() {
   vec2 c = corners[gl_VertexID];
   float x0 = xyMap(ax0, u_x0map, u_x0meta, u_xmode) + u_edgePad.x;
@@ -1154,8 +631,7 @@ void main() {
   v_t = c.y;
   v_rgba = a_rgba; v_style = a_style; v_stroke = a_stroke; v_radius = a_radius;
   gl_Position = vec4(mix(x0, x1, c.x), mix(y0, y1, c.y), 0.0, 1.0);
-}`;
-const BAR_VS = `#version 300 es
+}`,De=`#version 300 es
 in float a_pos; in float a_v0; in float a_v1; in float a_cval;
 in float a_prevx; in float a_prevy; in float a_prevx1;
 in vec4 a_rgba; in vec4 a_style; in vec4 a_stroke; in vec2 a_radius;
@@ -1172,7 +648,7 @@ out float v_lutCoord;
 out vec2 v_local; out vec2 v_half; out float v_t;
 out vec4 v_rgba; out vec4 v_style; out vec4 v_stroke; out vec2 v_radius;
 const vec2 corners[4] = vec2[4](vec2(0.,0.), vec2(1.,0.), vec2(0.,1.), vec2(1.,1.));
-${AXIS_GLSL}
+${I}
 void main() {
   vec2 c = corners[gl_VertexID];
   float nextP = xyMap(a_pos, u_pmap, u_pmeta, u_pmode);
@@ -1211,8 +687,7 @@ void main() {
   v_half = abs(pB - pA) * 0.5;
   v_local = vec2(mix(pA.x, pB.x, c.x), mix(pA.y, pB.y, c.y)) - (pA + pB) * 0.5;
   v_rgba = a_rgba; v_style = a_style; v_stroke = a_stroke; v_radius = a_radius;
-}`;
-const RECT_FS = `#version 300 es
+}`,Oe=`#version 300 es
 precision highp float; precision highp int;
 uniform vec4 u_color; uniform int u_colorMode; uniform sampler2D u_lut;
 uniform vec2 u_radius; uniform float u_strokeWidth; uniform vec4 u_stroke;
@@ -1223,7 +698,7 @@ in float v_lutCoord;
 in vec2 v_local; in vec2 v_half; in float v_t;
 in vec4 v_rgba; in vec4 v_style; in vec4 v_stroke; in vec2 v_radius;
 out vec4 outColor;
-${GRAD_GLSL}
+${Ce}
 void main() {
   vec4 paint = u_colorMode == 3 ? v_rgba : (u_colorMode == 0 ? u_color : vec4(texture(u_lut, vec2(clamp(v_lutCoord, 0.0, 1.0), 0.5)).rgb, 1.0));
   float alpha = (v_style.y >= 0.0 ? v_style.y : paint.a) * v_style.x * u_opacity;
@@ -1260,591 +735,10 @@ void main() {
   }
   if (premult.a <= 0.001) discard;
   outColor = premult;
-}`;
-function xyMonotoneTangents(x, y, n) {
-const d = new Float64Array(n - 1);
-const m = new Float64Array(n);
-for (let i = 0; i < n - 1; i++) {
-const dx = x[i + 1] - x[i];
-d[i] = dx > 0 ? (y[i + 1] - y[i]) / dx : 0;
-}
-m[0] = d[0];
-m[n - 1] = d[n - 2];
-for (let i = 1; i < n - 1; i++) m[i] = d[i - 1] * d[i] <= 0 ? 0 : (d[i - 1] + d[i]) * 0.5;
-for (let i = 0; i < n - 1; i++) {
-if (d[i] === 0) { m[i] = 0; m[i + 1] = 0; continue; }
-const a = m[i] / d[i];
-const b = m[i + 1] / d[i];
-const s = a * a + b * b;
-if (s > 9) {
-const t = 3 / Math.sqrt(s);
-m[i] = t * a * d[i];
-m[i + 1] = t * b * d[i];
-}
-}
-return m;
-}
-function xySmoothResample(x, y, extra, n, maxOut) {
-if (n < 3) return null;
-const sub = Math.max(1, Math.min(16, Math.floor(maxOut / n)));
-if (sub <= 1) return null;
-for (let i = 0; i < n; i++) {
-if (!Number.isFinite(x[i]) || !Number.isFinite(y[i])) return null;
-if (i > 0 && x[i] < x[i - 1]) return null;
-if (extra && !Number.isFinite(extra[i])) return null;
-}
-const my = xyMonotoneTangents(x, y, n);
-const me = extra ? xyMonotoneTangents(x, extra, n) : null;
-const outN = (n - 1) * sub + 1;
-const ox = new Float32Array(outN);
-const oy = new Float32Array(outN);
-const oe = extra ? new Float32Array(outN) : null;
-let k = 0;
-for (let i = 0; i < n - 1; i++) {
-const h = x[i + 1] - x[i];
-for (let s = 0; s < sub; s++) {
-const t = s / sub;
-ox[k] = x[i] + h * t;
-if (h > 0) {
-const t2 = t * t;
-const t3 = t2 * t;
-const h00 = 2.0 * t3 - 3.0 * t2 + 1.0;
-const h10 = t3 - 2.0 * t2 + t;
-const h01 = -2.0 * t3 + 3.0 * t2;
-const h11 = t3 - t2;
-oy[k] = h00 * y[i] + h10 * h * my[i] + h01 * y[i + 1] + h11 * h * my[i + 1];
-if (oe) oe[k] = h00 * extra[i] + h10 * h * me[i] + h01 * extra[i + 1] + h11 * h * me[i + 1];
-} else {
-oy[k] = y[i];
-if (oe) oe[k] = extra[i];
-}
-k++;
-}
-}
-ox[k] = x[n - 1];
-oy[k] = y[n - 1];
-if (oe) oe[k] = extra[n - 1];
-return { x: ox, y: oy, extra: oe, n: outN };
-}
-const LOD_DIRECT_POINT_BUDGET = 200000;
-const LOD_DRILL_EXIT_FACTOR = 1.15;
-function lodFade(view, start, duration = 140) {
-if (start === undefined || start === null || duration <= 0 || view._prefersReducedMotion()) {
-return 1;
-}
-const t = Math.min(1, Math.max(0, (view._now() - start) / duration));
-return t * t * (3 - 2 * t);
-}
-function lodDecodeLogU8(buf, maxVal) {
-const u8 = buf instanceof ArrayBuffer ? new Uint8Array(buf) : new Uint8Array(buf.buffer, buf.byteOffset, buf.byteLength);
-const out = new Float32Array(u8.length);
-const denom = Math.log1p(Math.max(0, maxVal || 0));
-if (denom > 0) {
-for (let i = 0; i < u8.length; i++) {
-if (u8[i] > 0) out[i] = Math.expm1((u8[i] / 255) * denom);
-}
-}
-return out;
-}
-function lodCopyGrid(f32) {
-return f32.slice ? f32.slice() : new Float32Array(f32);
-}
-function lodWriteGridTexture(gl, tex, f32, w, h, maxVal) {
-const data = new Uint8Array(f32.length);
-const denom = Math.log1p(Math.max(0, maxVal || 0));
-if (denom > 0) {
-for (let i = 0; i < f32.length; i++) {
-const c = f32[i];
-if (c > 0 && Number.isFinite(c)) {
-data[i] = Math.max(1, Math.min(255, Math.round(255 * Math.log1p(c) / denom)));
-}
-}
-}
-gl.bindTexture(gl.TEXTURE_2D, tex);
-const align = gl.getParameter(gl.UNPACK_ALIGNMENT);
-gl.pixelStorei(gl.UNPACK_ALIGNMENT, 1);
-gl.texImage2D(gl.TEXTURE_2D, 0, gl.R8, w, h, 0, gl.RED, gl.UNSIGNED_BYTE, data);
-gl.pixelStorei(gl.UNPACK_ALIGNMENT, align);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-}
-function lodNormMax(g, nextMax) {
-if (!Number.isFinite(nextMax) || nextMax <= 0) {
-g.densityNormMax = 0;
-return 0;
-}
-const prev = Number.isFinite(g.densityNormMax) && g.densityNormMax > 0
-? g.densityNormMax
-: nextMax;
-const norm = nextMax > prev
-? prev * 0.3 + nextMax * 0.7
-: Math.max(nextMax, prev * 0.86);
-g.densityNormMax = norm;
-return norm;
-}
-function lodStartNormAnim(view, g, start, target) {
-if (!g.density || !g.density.grid || !Number.isFinite(target) || target <= 0) {
-g._densityNormAnim = null;
-return;
-}
-const ratio = Math.abs(Math.log(Math.max(start, 1e-12) / Math.max(target, 1e-12)));
-if (view._prefersReducedMotion() || ratio < 0.02) {
-g._densityNormAnim = null;
-g.density.normMax = target;
-g.densityNormMax = target;
-lodWriteGridTexture(view.gl, g.density.tex, g.density.grid, g.density.w, g.density.h, target);
-return;
-}
-g._densityNormAnim = {
-start,
-target,
-startedAt: view._now(),
-duration: target < start ? 420 : 260,
-};
-}
-function lodStepNorm(view, g) {
-const anim = g._densityNormAnim;
-const d = g.density;
-if (!anim || !d || !d.grid || !d.tex) return;
-const t = Math.min(1, Math.max(0, (view._now() - anim.startedAt) / anim.duration));
-const k = t * t * (3 - 2 * t);
-const norm = anim.start + (anim.target - anim.start) * k;
-const prev = d.normMax || 0;
-const rel = Math.abs(norm - prev) / Math.max(Math.abs(norm), Math.abs(prev), 1);
-if (rel > 0.004 || t >= 1) {
-d.normMax = norm;
-g.densityNormMax = norm;
-lodWriteGridTexture(view.gl, d.tex, d.grid, d.w, d.h, norm);
-}
-if (t < 1) {
-view.draw();
-return;
-}
-d.normMax = anim.target;
-g.densityNormMax = anim.target;
-g._densityNormAnim = null;
-}
-function lodDensityArea(d) {
-return Math.abs((d.xRange[1] - d.xRange[0]) * (d.yRange[1] - d.yRange[0]));
-}
-function lodWindowArea(win) {
-if (!win) return 0;
-return Math.abs((win.x1 - win.x0) * (win.y1 - win.y0));
-}
-function lodWindowCenterInside(win, view) {
-if (!win || !view) return false;
-const cx = (view.x0 + view.x1) / 2;
-const cy = (view.y0 + view.y1) / 2;
-return (
-cx >= Math.min(win.x0, win.x1) &&
-cx <= Math.max(win.x0, win.x1) &&
-cy >= Math.min(win.y0, win.y1) &&
-cy <= Math.max(win.y0, win.y1)
-);
-}
-function lodDensityForView(view, g) {
-const cache = g.densityCache || (g.density ? [g.density] : []);
-let best = null;
-let broadest = null;
-for (const d of cache) {
-if (!d || !d.tex) continue;
-if (!broadest || lodDensityArea(d) > lodDensityArea(broadest)) broadest = d;
-if (!view._viewInsideRange(d.xRange, d.yRange)) continue;
-if (!best || lodDensityArea(d) < lodDensityArea(best)) best = d;
-}
-return best || broadest || g.density;
-}
-function lodHoldPendingDrill(view, g, d) {
-const pending = g._lodPendingView;
-if (!d || !pending || g._drillDying) return false;
-if (g._lodPendingSeq !== view.seq) return false;
-if (g._lodPendingAt && view._now() - g._lodPendingAt > 1200) return false;
-if (!lodWindowCenterInside(d.win, pending)) return false;
-const drillArea = lodWindowArea(d.win);
-const pendingArea = lodWindowArea(pending);
-if (!Number.isFinite(drillArea) || !Number.isFinite(pendingArea) || drillArea <= 0) return false;
-const baseVisible = Number.isFinite(d.visible) ? d.visible : d.n;
-if (!Number.isFinite(baseVisible) || baseVisible <= 0) return false;
-const estimatedVisible = baseVisible * Math.max(1, pendingArea / drillArea);
-return estimatedVisible <= LOD_DIRECT_POINT_BUDGET * LOD_DRILL_EXIT_FACTOR;
-}
-function lodDensityPinned(g, d) {
-return d === g.density || d === g.prevDensity || d === g._densitySwitchPrev ||
-d === g._shownDensity || d === g._homeDensity;
-}
-function lodRememberDensity(view, g, d) {
-if (!d || !d.tex) return;
-d._stamp = ++view._densityStamp;
-if (!g.densityCache) g.densityCache = [];
-if (!g.densityCache.includes(d)) g.densityCache.push(d);
-const maxCached = 8;
-while (g.densityCache.length > maxCached) {
-let drop = -1;
-for (let i = 0; i < g.densityCache.length; i++) {
-const cand = g.densityCache[i];
-if (lodDensityPinned(g, cand)) continue;
-if (drop < 0) { drop = i; continue; }
-const dropArea = lodDensityArea(g.densityCache[drop]);
-const candArea = lodDensityArea(cand);
-if (candArea < dropArea || (candArea === dropArea && cand._stamp < g.densityCache[drop]._stamp)) {
-drop = i;
-}
-}
-if (drop < 0) break;
-const old = g.densityCache.splice(drop, 1)[0];
-if (!lodDensityPinned(g, old)) view.gl.deleteTexture(old.tex);
-}
-}
-function lodApplyDrill(view, g, upd, buffers) {
-const gl = view.gl;
-const fresh = !g.drill;
-let d = g.drill;
-if (!d) {
-d = g.drill = { trace: g.trace, xBuf: gl.createBuffer(), yBuf: gl.createBuffer() };
-}
-d.trace = { ...g.trace, style: upd.style || g.trace.style || {} };
-d.xAxis = g.xAxis;
-d.yAxis = g.yAxis;
-const xs = view._asF32(buffers[upd.x.buf]);
-const ys = view._asF32(buffers[upd.y.buf]);
-gl.bindBuffer(gl.ARRAY_BUFFER, d.xBuf);
-gl.bufferData(gl.ARRAY_BUFFER, xs, gl.STATIC_DRAW);
-gl.bindBuffer(gl.ARRAY_BUFFER, d.yBuf);
-gl.bufferData(gl.ARRAY_BUFFER, ys, gl.STATIC_DRAW);
-d.xMeta = { offset: upd.x.offset, scale: upd.x.scale };
-d.yMeta = { offset: upd.y.offset, scale: upd.y.scale };
-d.win = { x0: upd.x_range[0], x1: upd.x_range[1], y0: upd.y_range[0], y1: upd.y_range[1] };
-d.n = Math.min(upd.x.len, upd.y.len);
-d.visible = upd.visible ?? d.n;
-d.seq = upd.drill_seq;
-d.selActive = false;
-lodRestoreBrushMask(view, d, xs, ys);
-view._hoverId = -1;
-view._lastRow = null;
-d.colorMode = 0;
-d.color = parseColor(view.root, upd.color && upd.color.color, [0.3, 0.47, 0.66, 1]);
-if (upd.color && upd.color.buf !== undefined) {
-d.colorMode = upd.color.mode === "continuous" ? 1 :
-(upd.color.mode === "categorical" ? 2 : 3);
-const colorValues = upd.color.dtype === "u8"
-? view._asU8(buffers[upd.color.buf])
-: view._asF32(buffers[upd.color.buf]);
-const colorBufferName = d.colorMode === 3 ? "rgbaBuf" : "cBuf";
-if (!d[colorBufferName]) d[colorBufferName] = gl.createBuffer();
-d[colorBufferName]._fcType = colorValues instanceof Uint8Array ? gl.UNSIGNED_BYTE : gl.FLOAT;
-gl.bindBuffer(gl.ARRAY_BUFFER, d[colorBufferName]);
-gl.bufferData(gl.ARRAY_BUFFER, colorValues, gl.STATIC_DRAW);
-if (d.colorMode !== 3) {
-d.lut = upd.color.mode === "continuous"
-? view._lut(upd.color.colormap)
-: view._paletteLut(upd.color.palette);
-}
-}
-d.sizeMode = 0;
-d.size = (upd.size && upd.size.size) || 4.0;
-d.sizeRange = [2, 18];
-if (upd.size && upd.size.mode === "continuous") {
-d.sizeMode = 1;
-if (!d.sBuf) d.sBuf = gl.createBuffer();
-gl.bindBuffer(gl.ARRAY_BUFFER, d.sBuf);
-gl.bufferData(gl.ARRAY_BUFFER, view._asF32(buffers[upd.size.buf]), gl.STATIC_DRAW);
-d.sizeRange = upd.size.range_px;
-}
-const styleChannel = (name) => upd.channels && upd.channels[name];
-const artistScalar = Number(d.trace.style && d.trace.style.artist_alpha);
-if (styleChannel("opacity") || styleChannel("artist_alpha") ||
-styleChannel("stroke_width") || styleChannel("symbol") || Number.isFinite(artistScalar)) {
-const values = new Float32Array(d.n * 4);
-for (let i = 0; i < d.n; i++) {
-values[i * 4] = 1;
-values[i * 4 + 1] = Number.isFinite(artistScalar) ? artistScalar : -1;
-values[i * 4 + 2] = -1;
-values[i * 4 + 3] = -1;
-}
-const copy = (name, component, scale = 1) => {
-const spec = styleChannel(name);
-if (!spec) return;
-const source = spec.dtype === "u8"
-? view._asU8(buffers[spec.buf])
-: view._asF32(buffers[spec.buf]);
-const components = spec.components || 1;
-for (let i = 0; i < d.n; i++) values[i * 4 + component] = source[i * components] * scale;
-};
-copy("opacity", 0);
-copy("artist_alpha", 1);
-copy("stroke_width", 2, view.dpr);
-copy("symbol", 3);
-if (!d.styleBuf) d.styleBuf = gl.createBuffer();
-d.styleBuf._fcType = gl.FLOAT;
-gl.bindBuffer(gl.ARRAY_BUFFER, d.styleBuf);
-gl.bufferData(gl.ARRAY_BUFFER, values, gl.STATIC_DRAW);
-}
-if (upd.stroke && upd.stroke.mode === "direct_rgba") {
-const values = view._asU8(buffers[upd.stroke.buf]);
-if (!d.strokeBuf) d.strokeBuf = gl.createBuffer();
-d.strokeBuf._fcType = gl.UNSIGNED_BYTE;
-gl.bindBuffer(gl.ARRAY_BUFFER, d.strokeBuf);
-gl.bufferData(gl.ARRAY_BUFFER, values, gl.STATIC_DRAW);
-}
-view._pointMarkStyle(d, d.trace);
-if (upd.density_val && upd.density_val.buf !== undefined) {
-if (!d.dBuf) d.dBuf = gl.createBuffer();
-gl.bindBuffer(gl.ARRAY_BUFFER, d.dBuf);
-gl.bufferData(gl.ARRAY_BUFFER, view._asF32(buffers[upd.density_val.buf]), gl.STATIC_DRAW);
-d.dlut = view._lut(upd.density_colormap || "viridis");
-const first = d.lodBlend === undefined;
-d.lodBlend = Math.min(1, upd.lod_blend ?? 0);
-if (first) d.lodBlendShown = d.lodBlend;
-} else {
-d.lodBlend = 0;
-}
-if (fresh) {
-g._drillFadeStart = view._now();
-g._drillWasInside = false;
-g._drillShownAlpha = 0;
-g._drillExitFadeStart = null;
-g._drillDying = false;
-g._drillDiedInsideWin = false;
-return;
-}
-if (g._drillDying || g._drillExitFadeStart != null) {
-lodEnterDrillContinuous(view, g);
-}
-g._drillDying = false;
-g._drillDiedInsideWin = false;
-}
-function lodRestoreBrushMask(view, d, xs, ys) {
-const b = view._lastBrush;
-if (!b || !d.n) return;
-const ox = d.xMeta.offset, sx = d.xMeta.scale || 1;
-const oy = d.yMeta.offset, sy = d.yMeta.scale || 1;
-const mask = new Float32Array(d.n);
-if (b.mode === "box") {
-for (let i = 0; i < d.n; i++) {
-const x = xs[i] / sx + ox, y = ys[i] / sy + oy;
-if (x >= b.x0 && x <= b.x1 && y >= b.y0 && y <= b.y1) mask[i] = 1;
-}
-} else if (b.mode === "poly" && Array.isArray(b.points) && b.points.length >= 3) {
-const pts = b.points;
-for (let i = 0; i < d.n; i++) {
-const x = xs[i] / sx + ox, y = ys[i] / sy + oy;
-let hit = false;
-for (let a = 0, z = pts.length - 1; a < pts.length; z = a++) {
-const [xa, ya] = pts[a], [xz, yz] = pts[z];
-if ((ya > y) !== (yz > y) && x < ((xz - xa) * (y - ya)) / (yz - ya) + xa) hit = !hit;
-}
-if (hit) mask[i] = 1;
-}
-} else {
-return;
-}
-view._applySelMask(d, mask);
-}
-function lodDropDrill(view, g) {
-const d = g.drill;
-if (!d) return;
-const gl = view.gl;
-view._deleteVaos(d);
-for (const b of [d.xBuf, d.yBuf, d.cBuf, d.rgbaBuf, d.sBuf, d.styleBuf,
-d.strokeBuf, d.selBuf, d.dBuf]) if (b) gl.deleteBuffer(b);
-g.drill = null;
-g._drillFadeStart = null;
-g._drillExitFadeStart = null;
-g._drillWasInside = false;
-g._drillShownAlpha = null;
-g._drillDying = false;
-g._drillDiedInsideWin = false;
-view._hoverId = -1;
-view._lastRow = null;
-view._updatePickable();
-}
-function lodMarkDrillDying(view, g) {
-if (!g.drill) return;
-g._drillDying = true;
-g._drillDiedInsideWin = view._viewInside(g.drill.win);
-lodBeginDrillExitContinuous(view, g);
-}
-function lodDrillExitFade(view, g) {
-if (g._drillExitFadeStart === undefined || g._drillExitFadeStart === null) {
-g._drillExitFadeStart = view._now();
-}
-const fade = lodFade(view, g._drillExitFadeStart, LOD_EXIT_FADE_MS);
-if (fade >= 1) g._drillExitFadeStart = null;
-return fade;
-}
-const LOD_ENTRY_FADE_MS = 140;
-const LOD_EXIT_FADE_MS = 120;
-function lodFadeInvert(alpha) {
-const a = Math.min(1, Math.max(0, alpha));
-return 0.5 - Math.sin(Math.asin(1 - 2 * a) / 3);
-}
-function lodDrillShownAlpha(view, g) {
-if (g._drillExitFadeStart != null) {
-return 1 - lodFade(view, g._drillExitFadeStart, LOD_EXIT_FADE_MS);
-}
-if (g._drillFadeStart != null) {
-return lodFade(view, g._drillFadeStart, LOD_ENTRY_FADE_MS);
-}
-if (g._drillShownAlpha != null) return g._drillShownAlpha;
-return g._drillWasInside ? 1 : 0;
-}
-function lodEnterDrillContinuous(view, g) {
-const alpha = lodDrillShownAlpha(view, g);
-g._drillShownAlpha = alpha;
-g._drillExitFadeStart = null;
-g._drillFadeStart =
-alpha >= 1 ? null : view._now() - LOD_ENTRY_FADE_MS * lodFadeInvert(alpha);
-}
-function lodBeginDrillExitContinuous(view, g) {
-if (g._drillExitFadeStart != null) return;
-const alpha = lodDrillShownAlpha(view, g);
-g._drillShownAlpha = alpha;
-g._drillFadeStart = null;
-g._drillExitFadeStart = view._now() - LOD_EXIT_FADE_MS * lodFadeInvert(1 - alpha);
-}
-function lodApplyDensityUpdate(view, g, upd, buffers) {
-lodMarkDrillDying(view, g);
-const d = upd.density;
-const grid = d.enc === "log-u8"
-? lodDecodeLogU8(buffers[d.buf], d.max)
-: lodCopyGrid(view._asF32(buffers[d.buf]));
-const normStart = lodNormMax(g, d.max);
-const normMax = view._prefersReducedMotion() ? d.max : normStart;
-g.densityNormMax = normMax;
-g.prevDensity = g.density;
-g._densityFadeStart = view._now();
-g.density = {
-w: d.w, h: d.h, max: d.max, normMax, colormap: d.colormap || g.density.colormap,
-color: d.color ? parseColor(view.root, d.color, [0.3, 0.47, 0.66, 1]) : g.density.color,
-xRange: d.x_range, yRange: d.y_range,
-grid,
-tex: view._uploadGrid(grid, d.w, d.h, normMax),
-lut: g.density.lut,
-};
-if (Object.prototype.hasOwnProperty.call(d, "sample")) {
-view._applyDensitySample(g, d.sample, buffers);
-}
-lodStartNormAnim(view, g, normMax, d.max);
-lodRememberDensity(view, g, g.density);
-}
-function lodDrawDensityWithFade(view, g, density, opacityScale = 1) {
-if (density !== g._shownDensity) {
-if (density === g._densitySwitchPrev && g._densitySwitchFadeStart != null) {
-const f = lodFade(view, g._densitySwitchFadeStart, 140);
-g._densitySwitchFadeStart = view._now() - 140 * lodFadeInvert(1 - f);
-} else {
-g._densitySwitchFadeStart = view._now();
-}
-g._densitySwitchPrev = g._shownDensity;
-g._shownDensity = density;
-}
-const prev = g._densitySwitchPrev;
-const fade = prev && prev.tex ? lodFade(view, g._densitySwitchFadeStart, 140) : 1;
-if (fade < 1) {
-view._drawDensity(g, prev, (1 - fade) * opacityScale);
-view._drawDensity(g, density, fade * opacityScale);
-view.draw();
-return;
-}
-if (fade >= 1) {
-if (g.prevDensity === g._densitySwitchPrev) g.prevDensity = null;
-g._densitySwitchPrev = null;
-g._densitySwitchFadeStart = null;
-if (density === g.density) g._densityFadeStart = null;
-}
-view._drawDensity(g, density, opacityScale);
-}
-function lodDrawDensityTier(view, g, x0, x1, y0, y1) {
-lodStepNorm(view, g);
-const d = g.drill;
-if (d && g._drillDying && !g._drillDiedInsideWin && view._viewInside(d.win)) {
-g._drillDying = false;
-lodEnterDrillContinuous(view, g);
-g._drillWasInside = true;
-}
-const inside = d && !g._drillDying && view._viewInside(d.win);
-const density = lodDensityForView(view, g);
-if (inside) {
-if (!g._drillWasInside || g._drillExitFadeStart != null) lodEnterDrillContinuous(view, g);
-g._drillWasInside = true;
-g._drillExitFadeStart = null;
-const fade = lodFade(view, g._drillFadeStart);
-g._drillShownAlpha = fade;
-g._shownDensity = fade < 1 ? density : null;
-g._densitySwitchPrev = null;
-g._densitySwitchFadeStart = null;
-if (fade < 1 && density && density.tex) {
-view._drawDensity(g, density, 1 - fade);
-view._drawPoints(
-d,
-view._map(d.xMeta, x0, x1, d.xAxis),
-view._map(d.yMeta, y0, y1, d.yAxis),
-fade
-);
-view.draw();
-} else {
-g._drillFadeStart = null;
-view._drawPoints(
-d,
-view._map(d.xMeta, x0, x1, d.xAxis),
-view._map(d.yMeta, y0, y1, d.yAxis)
-);
-}
-} else if (density && density.tex) {
-if (lodHoldPendingDrill(view, g, d)) {
-lodEnterDrillContinuous(view, g);
-const fade = lodFade(view, g._drillFadeStart);
-g._drillShownAlpha = fade;
-if (fade < 1) {
-view._drawDensity(g, density, 1 - fade);
-view._drawPoints(
-d,
-view._map(d.xMeta, x0, x1, d.xAxis),
-view._map(d.yMeta, y0, y1, d.yAxis),
-fade
-);
-view.draw();
-} else {
-g._drillFadeStart = null;
-view._drawPoints(
-d,
-view._map(d.xMeta, x0, x1, d.xAxis),
-view._map(d.yMeta, y0, y1, d.yAxis)
-);
-}
-if (view._viewAnim) view.draw();
-return;
-}
-const exitingDrill = d && g._drillWasInside;
-if (exitingDrill) lodBeginDrillExitContinuous(view, g);
-const exitFade = exitingDrill ? lodDrillExitFade(view, g) : 1;
-if (d) g._drillShownAlpha = exitingDrill && exitFade < 1 ? 1 - exitFade : 0;
-if (exitingDrill && exitFade < 1) {
-lodDrawDensityWithFade(view, g, density, exitFade);
-view._drawPoints(
-d,
-view._map(d.xMeta, x0, x1, d.xAxis),
-view._map(d.yMeta, y0, y1, d.yAxis),
-1 - exitFade
-);
-view.draw();
-} else {
-if (g._drillDying) lodDropDrill(view, g);
-else if (exitingDrill) g._drillWasInside = false;
-lodDrawDensityWithFade(view, g, density);
-view._drawDensitySample(g, x0, x1, y0, y1);
-}
-} else if (d) {
-view._drawPoints(
-d,
-view._map(d.xMeta, x0, x1, d.xAxis),
-view._map(d.yMeta, y0, y1, d.yAxis)
-);
-}
-}
-const XY_REBIN_WORKER_SRC = `
+}`;function ke(e,t,n){let r=new Float64Array(n-1),i=new Float64Array(n);for(let i=0;i<n-1;i++){let n=e[i+1]-e[i];r[i]=n>0?(t[i+1]-t[i])/n:0}i[0]=r[0],i[n-1]=r[n-2];for(let e=1;e<n-1;e++)i[e]=r[e-1]*r[e]<=0?0:(r[e-1]+r[e])*.5;for(let e=0;e<n-1;e++){if(r[e]===0){i[e]=0,i[e+1]=0;continue}let t=i[e]/r[e],n=i[e+1]/r[e],a=t*t+n*n;if(a>9){let o=3/Math.sqrt(a);i[e]=o*t*r[e],i[e+1]=o*n*r[e]}}return i}function Ae(e,t,n,r,i){if(r<3)return null;let a=Math.max(1,Math.min(16,Math.floor(i/r)));if(a<=1)return null;for(let i=0;i<r;i++)if(!Number.isFinite(e[i])||!Number.isFinite(t[i])||i>0&&e[i]<e[i-1]||n&&!Number.isFinite(n[i]))return null;let o=ke(e,t,r),s=n?ke(e,n,r):null,c=(r-1)*a+1,l=new Float32Array(c),u=new Float32Array(c),d=n?new Float32Array(c):null,f=0;for(let i=0;i<r-1;i++){let r=e[i+1]-e[i];for(let c=0;c<a;c++){let p=c/a;if(l[f]=e[i]+r*p,r>0){let e=p*p,a=e*p,c=2*a-3*e+1,l=a-2*e+p,m=-2*a+3*e,h=a-e;u[f]=c*t[i]+l*r*o[i]+m*t[i+1]+h*r*o[i+1],d&&(d[f]=c*n[i]+l*r*s[i]+m*n[i+1]+h*r*s[i+1])}else u[f]=t[i],d&&(d[f]=n[i]);f++}}return l[f]=e[r-1],u[f]=t[r-1],d&&(d[f]=n[r-1]),{x:l,y:u,extra:d,n:c}}var je=2e5,Me=1.15;function L(e,t,n=140){if(t==null||n<=0||e._prefersReducedMotion())return 1;let r=Math.min(1,Math.max(0,(e._now()-t)/n));return r*r*(3-2*r)}function Ne(e,t){let n=e instanceof ArrayBuffer?new Uint8Array(e):new Uint8Array(e.buffer,e.byteOffset,e.byteLength),r=new Float32Array(n.length),i=Math.log1p(Math.max(0,t||0));if(i>0)for(let e=0;e<n.length;e++)n[e]>0&&(r[e]=Math.expm1(n[e]/255*i));return r}function R(e){return e.slice?e.slice():new Float32Array(e)}function z(e,t,n,r,i,a){let o=new Uint8Array(n.length),s=Math.log1p(Math.max(0,a||0));if(s>0)for(let e=0;e<n.length;e++){let t=n[e];t>0&&Number.isFinite(t)&&(o[e]=Math.max(1,Math.min(255,Math.round(255*Math.log1p(t)/s))))}e.bindTexture(e.TEXTURE_2D,t);let c=e.getParameter(e.UNPACK_ALIGNMENT);e.pixelStorei(e.UNPACK_ALIGNMENT,1),e.texImage2D(e.TEXTURE_2D,0,e.R8,r,i,0,e.RED,e.UNSIGNED_BYTE,o),e.pixelStorei(e.UNPACK_ALIGNMENT,c),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MIN_FILTER,e.LINEAR),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MAG_FILTER,e.LINEAR),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_WRAP_S,e.CLAMP_TO_EDGE),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_WRAP_T,e.CLAMP_TO_EDGE)}function Pe(e,t){if(!Number.isFinite(t)||t<=0)return e.densityNormMax=0,0;let n=Number.isFinite(e.densityNormMax)&&e.densityNormMax>0?e.densityNormMax:t,r=t>n?n*.3+t*.7:Math.max(t,n*.86);return e.densityNormMax=r,r}function Fe(e,t,n,r){if(!t.density||!t.density.grid||!Number.isFinite(r)||r<=0){t._densityNormAnim=null;return}let 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n=typeof document>`u`||!document.visibilityState||document.visibilityState===`visible`;!t&&this._ctxVisible&&n&&setTimeout(()=>{!this._destroyed&&this._glLost&&this.canvas.dataset.xyCtx===`lost`&&this._ctxVisible&&this._recoverContext()},0),t&&this._ctxRecoverRequested&&!this._destroyed&&this._ctxVisible&&(this._ctxRecoverRequested=!1,setTimeout(()=>{!this._destroyed&&this._glLost&&this._ctxVisible&&this._recoverContext()},0))}),this._listen(this.canvas,`webglcontextrestored`,()=>{if(!(this._destroyed||this._contextRecoveryError)){this._lutCache.clear(),this.pickFbo=null,this.pickTex=null;try{this._initGl(this._payload),this._glLost=!1,this._drawNow(),this._assertContextFrameReady(`restore`)}catch(e){if(this._glLost=!0,this.canvas.dataset.xyCtx=`lost`,this.root.dataset.xyContextState=`lost`,!this.gl||this.gl.isContextLost()||String(e&&e.message||e).includes(`shader compile: null`)||String(e&&e.message||e).startsWith(`WebGL error 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e?(this._snapshotBeforeRelease(),this._ctxReleasedExt=e,this._ctxReleases+=1,this._glLost=!0,this._ctxLostPending=!0,this.canvas.dataset.xyCtx=`released`,this._raf&&cancelAnimationFrame(this._raf),this._raf=null,e.loseContext(),Z._announceLive(),!0):!1}_snapshotBeforeRelease(){try{this._raf&&cancelAnimationFrame(this._raf),this._raf=null,this._rafKeepPick=!0,this._drawNow();let e=this._ctxSnapshot;e||(e=this._ctxSnapshot=document.createElement(`canvas`),e.dataset.xyCtxSnapshot=``),e.width=this.canvas.width,e.height=this.canvas.height,e.style.cssText=this.canvas.style.cssText,e.style.pointerEvents=`none`;let t=this.gl,n=this.canvas.width,r=this.canvas.height;t.finish();let i=new Uint8Array(n*r*4);t.readPixels(0,0,n,r,t.RGBA,t.UNSIGNED_BYTE,i);let a=e.getContext(`2d`),o=a.createImageData(n,r),s=o.data;for(let e=0;e<r;e++){let t=e*n*4,a=t+n*4,o=(r-1-e)*n*4;for(;t<a;t+=4,o+=4){let e=i[t+3],n=i[t],r=i[t+1],a=i[t+2];if(e>0&&e<255){let 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draw`)}_scheduleContextRecovery(){if(this._ctxRecoveryTimer||this._destroyed||!this._ctxVisible||typeof document<`u`&&document.visibilityState&&document.visibilityState!==`visible`)return;let e=this._ctxRecoveryDelay||50;this._ctxRecoveryDelay=Math.min(1e3,e*2),this._ctxRecoveryTimer=setTimeout(()=>{this._ctxRecoveryTimer=null,this._glLost&&!this._destroyed&&this._ctxVisible&&this._recoverContext()},e)}_rebuildEvictedContext(){if(this.gl&&!this.gl.isContextLost())try{this.gl.getExtension(`WEBGL_lose_context`)?.loseContext()}catch{}let e=this.canvas.cloneNode(!1);for(let t of this._listeners)t.target===this.canvas&&(this.canvas.removeEventListener(t.type,t.handler,t.options),e.addEventListener(t.type,t.handler,t.options),t.target=e);this.canvas.replaceWith(e),this.canvas=e,this._glLost=!1,this._lutCache.clear(),this.pickFbo=null,this.pickTex=null;try{this._initGl(this._payload),this._glLost=!1,this._drawNow(),this._assertContextFrameReady(`rebuild`)}catch{this._glLost=!0,this.canvas.dataset.xyCtx=`lost`,this._scheduleContextRecovery();return}this._ctxRecoveryDelay=0,this.canvas.dataset.xyCtx=`live`,Z._announceLive(),this._scheduleViewRequest(this.view,{delay:0}),this._dropContextSnapshot()}_armContextVisibilityWatch(){if(this._listen(this.root,`pointerenter`,()=>{this._glLost&&!this._destroyed&&this._recoverContext()}),typeof document<`u`&&this._listen(document,`visibilitychange`,()=>{if(document.visibilityState===`hidden`){Z.scheduleHiddenReleases();return}Z.cancelHiddenReleases(),document.visibilityState===`visible`&&this._ctxVisible&&this._glLost&&!this._destroyed&&this._recoverContext()}),typeof IntersectionObserver>`u`){this._ctxVisible=!0;return}this._ctxIo=new IntersectionObserver(e=>{let t=e[e.length-1];this._ctxVisible=t.isIntersecting||t.intersectionRatio>0,this._ctxVisible?(this._ctxSeenSeq=Z.seq++,this._glLost&&!this._destroyed&&this._recoverContext(),this._healStaleTheme()&&this.draw()):this._destroyed||Z._rebalance()},{rootMargin:`25% 0px 25% 0px`}),this._ctxIo.observe(this.root)}_resize(e,t){let n=this.fluid&&e?Math.max(120,Math.round(e)):this.size.w,r=this.fluidH&&t?Math.max(120,Math.round(t)):this.size.h,i=window.devicePixelRatio||1;if(n===this.size.w&&r===this.size.h&&i===this.dpr)return;this.dpr=i,this.size.w=n,this.size.h=r,this._layout();let a=this.plot;this.root.style.setProperty(`--xy-legend-max-width`,Math.max(40,a.w-12)+`px`),this.root.style.setProperty(`--xy-legend-max-height`,Math.max(40,a.h-12)+`px`),this.canvas.style.left=a.x+`px`,this.canvas.style.top=a.y+`px`,this.canvas.style.width=a.w+`px`,this.canvas.style.height=a.h+`px`,this.canvas.width=a.w*this.dpr,this.canvas.height=a.h*this.dpr,this.chrome.style.width=this.size.w+`px`,this.chrome.style.height=this.size.h+`px`,this.chrome.width=this.size.w*this.dpr,this.chrome.height=this.size.h*this.dpr,this.overlay.style.width=this.size.w+`px`,this.overlay.style.height=this.size.h+`px`,this.overlay.width=this.size.w*this.dpr,this.overlay.height=this.size.h*this.dpr;for(let e of this._legends||[])this._positionLegend(e,e.dataset.xyLegendLoc||`upper right`);this._positionReductionBadges(),this._positionColorbar(),this._fitModebar(),this._layoutAxisBands(),this._pickDirty=!0,this._raf&&cancelAnimationFrame(this._raf),this._raf=null,this._drawNow(),this._scheduleViewRequest()}_buildDom(e){let t=this.spec,n=document.createElement(`div`);n.className=`xy`,n.style.cssText=`position:relative;width:${this.fluid?`100%`:this.size.w+`px`};height:${this.fluidH?`100%`:this.size.h+`px`};--xy-legend-max-width:${Math.max(40,this.plot.w-12)}px;--xy-legend-max-height:${Math.max(40,this.plot.h-12)}px;`+(this.fluidH?`min-height:120px;`:``)+`font:12px system-ui,sans-serif;user-select:none;`,this._applySlot(n,`root`),(n.style.background||n.style.backgroundColor)&&(n.dataset.xyOwnBg=``),e.appendChild(n),this.root=n,S(n);let r;do r=`xy-a11y-${++rt}`;while(document.getElementById(`${r}-summary`)||document.getElementById(`${r}-live`));if(n.setAttribute(`role`,`region`),n.setAttribute(`aria-label`,t.title?`Chart: ${t.title}`:`Interactive chart`),this.a11ySummary=document.createElement(`div`),this.a11ySummary.id=`${r}-summary`,this.a11ySummary.style.cssText=it,n.setAttribute(`aria-describedby`,this.a11ySummary.id),n.appendChild(this.a11ySummary),this.a11yLive=document.createElement(`div`),this.a11yLive.id=`${r}-live`,this.a11yLive.setAttribute(`role`,`status`),this.a11yLive.setAttribute(`aria-live`,`polite`),this.a11yLive.setAttribute(`aria-atomic`,`true`),this.a11yLive.style.cssText=it,n.appendChild(this.a11yLive),t.title){let e=document.createElement(`div`);e.textContent=t.title,e.style.cssText=`position:absolute;top:6px;left:0;right:0;`,this._applySlot(e,`title`),n.appendChild(e)}this.chrome=document.createElement(`canvas`),this.chrome.style.cssText=`position:absolute;inset:0;pointer-events:none;`,this._applySlot(this.chrome,`chrome`),n.appendChild(this.chrome),this.canvas=document.createElement(`canvas`),this.canvas.style.cssText=`position:absolute;left:${this.plot.x}px;top:${this.plot.y}px;width:${this.plot.w}px;height:${this.plot.h}px;touch-action:none;`,this._applySlot(this.canvas,`canvas`),this.canvas.tabIndex=0,this.canvas.setAttribute(`role`,`img`),this.canvas.setAttribute(`aria-describedby`,this.a11ySummary.id),n.appendChild(this.canvas),this.overlay=document.createElement(`canvas`),this.overlay.style.cssText=`position:absolute;inset:0;pointer-events:none;`,n.appendChild(this.overlay),this.labels=document.createElement(`div`),this.labels.style.cssText=`position:absolute;inset:0;pointer-events:none;`,this._applySlot(this.labels,`labels`),n.appendChild(this.labels),this.tooltip=document.createElement(`div`),this.tooltip.style.cssText=`position:absolute;display:none;pointer-events:none;z-index:5;`,this._applySlot(this.tooltip,`tooltip`),this.tooltip.setAttribute(`aria-hidden`,`true`),n.appendChild(this.tooltip),this._buildLegend(n),this._buildColorbar(n),this._buildReductionBadges(n)}_a11yAxisSummary(e,t){let n=this._axis(e),r=n.label?`${t} axis (${n.label})`:`${t} axis`;if(n.kind===`category`){let e=Array.isArray(n.categories)?n.categories:[];if(!e.length)return`${r} uses categories.`;let t=e.slice(0,6).map(e=>String(e)),i=e.length-t.length,a=i>0?`, and ${i} more`:``;return`${r} has ${e.length} categories: ${t.join(`, `)}${a}.`}let i=n.range||[];return i.length<2?null:`${r} ranges from ${N(i[0],n.kind)} to ${N(i[1],n.kind)}.`}_a11ySummaryText(){let e=Array.isArray(this.spec.traces)?this.spec.traces:[],t=[this.spec.title?`${this.spec.title}.`:`Interactive chart.`];t.push(`${e.length} data series.`);let n=e.map(e=>e&&e.name).filter(Boolean).slice(0,6);n.length&&t.push(`Series: ${n.join(`, `)}.`);let r=this._a11yAxisSummary(`x`,`X`),i=this._a11yAxisSummary(`y`,`Y`);return r&&t.push(r),i&&t.push(i),t.join(` `)}_initA11y(){if(!this.a11ySummary||!this.canvas)return;this.a11ySummary.textContent=this._a11ySummaryText();let e=this._pickable?` Use Arrow keys to explore data points in series data order; Home and End jump to the first and last point; Escape closes the readout.`:``;this.canvas.setAttribute(`aria-label`,`Plot area.${e}`)}_compactInt(e){let t=Number(e);return Number.isFinite(t)?Math.round(t).toLocaleString():`0`}_positionReductionBadges(){if(!this._badges)return;let e=this.size.w-(this.plot.x+this.plot.w),t=this.size.h-(this.plot.y+this.plot.h);this._badges.style.right=`${e+6}px`,this._badges.style.bottom=`${t+6}px`}_reductionBadgeItems(){let e=[],t=this.gpuTraces&&this.gpuTraces.length?this.gpuTraces:this.spec.traces||[];for(let n of t){let t=n.trace||n;if(t.tier!==`density`||!t.density)continue;let r=n.sampleOverlay&&n.sampleOverlay.sample?n.sampleOverlay.sample:t.density.sample;r&&Number(r.n)>0&&e.push(`sampled ${this._compactInt(r.n)} of ${this._compactInt(r.visible)}`),n._sampleRebinned&&e.push(`zoom re-binned from sample`),t.density.channels_dropped&&e.push(`aggregated channels`)}return e}_refreshReductionBadges(){if(!this._badges)return;let e=this._reductionBadgeItems();this._badges.textContent=``,this._badges.hidden=e.length===0;for(let t of e){let e=document.createElement(`div`);e.textContent=t,this._applySlot(e,`badge_item`),this._badges.appendChild(e)}this._positionReductionBadges()}_buildReductionBadges(e){let t=this._reductionBadgeItems(),n=(this.spec.traces||[]).some(e=>e.tier===`density`);if(!t.length&&!n)return;let r=document.createElement(`div`);r.style.cssText=`position:absolute;display:flex;flex-direction:column;align-items:flex-end;pointer-events:none;z-index:4;`,this._applySlot(r,`badge`),e.appendChild(r),this._badges=r,this._refreshReductionBadges()}_buildLegend(e){let t=this.spec;this._legends=[];let n=[];if(t.show_legend!==!1){for(let e of t.traces)if(e.tier===`density`)n.push({swatch:`gradient`,cmap:e.density.colormap,name:e.name||`density`});else if(e.color&&e.color.mode===`categorical`)e.color.categories.forEach((t,r)=>n.push({swatch:e.color.palette[r],name:t,symbol:e.kind===`scatter`?e.style?.symbol||`circle`:null,style:e.style||{}}));else if(e.color&&e.color.mode===`continuous`)n.push({swatch:`gradient`,cmap:e.color.colormap,name:e.name||`value`});else if(e.name){let t=e.color&&e.color.color||e.style&&e.style.color,r=[`line`,`segments`,`step`,`stairs`,`errorbar`].includes(e.kind);n.push({swatch:t,name:e.name,symbol:e.kind===`scatter`?e.style?.symbol||`circle`:null,line:r,style:e.style||{}})}n.length&&this._legendBox(e,n,t.legend||{})}for(let n of t.extra_legends||[]){let t=(n.items||[]).map(e=>({swatch:e.style&&e.style.color,name:e.name,symbol:e.kind===`scatter`?e.style?.symbol||`circle`:null,line:[`line`,`segments`,`step`,`stairs`,`errorbar`].includes(e.kind),style:e.style||{}}));t.length&&this._legendBox(e,t,n)}}_legendBox(e,t,n){let r=document.createElement(`div`),i=n.loc||`upper right`,a=Math.max(1,Number(n.ncols)||1),o=a>1;if(r.style.cssText=`position:absolute;display:grid;grid-template-columns:repeat(${o?a:1},max-content);overflow:auto;`,r.dataset.xyLegendLoc=i,this._positionLegend(r,i),this._applySlot(r,`legend`),n.title){let e=document.createElement(`div`);e.textContent=String(n.title),e.style.fontWeight=`600`,e.style.gridColumn=`1 / span ${o?a:1}`,r.appendChild(e)}for(let e of t){let t=document.createElement(`div`);this._applySlot(t,`legend_item`);let n=document.createElement(`span`);n.style.display=`inline-block`,n.style.verticalAlign=`-1px`;let i=e.swatch;if(e.swatch===`gradient`)i=`linear-gradient(90deg,${p(e.cmap).map(e=>`rgb(${e[0]},${e[1]},${e[2]})`).join(`,`)})`,n.style.background=i;else if(e.symbol){let t=`http://www.w3.org/2000/svg`,r=document.createElementNS(t,`svg`);r.setAttribute(`viewBox`,`0 0 18 14`),r.setAttribute(`width`,`18`),r.setAttribute(`height`,`14`);let a=document.createElementNS(t,`path`),o={square:`M4.5 2.5h9v9h-9z`,diamond:`M9 2l5 5-5 5-5-5z`,thin_diamond:`M9 2l3 5-3 5-3-5z`,triangle:`M9 2l-5 10h10z`,triangle_down:`M9 12L4 2h10z`,triangle_left:`M4 7L14 2v10z`,triangle_right:`M14 7L4 2v10z`,plus_line:`M9 2v10M4 7h10`,x_line:`M5 3l8 8M13 3l-8 8`,cross:`M7.5 2h3v3.5H14v3h-3.5V12h-3V8.5H4v-3h3.5z`,x:`M5.5 2L9 5.5 12.5 2 14 3.5 10.5 7 14 10.5 12.5 12 9 8.5 5.5 12 4 10.5 7.5 7 4 3.5z`,pentagon:`M9 2.5L13.28 5.61 11.65 10.64H6.35L4.72 5.61z`,hexagon:`M9 2L13.3 4.5v5L9 12l-4.3-2.5v-5z`,star:`M9 2l1.5 3.1 3.5.5-2.5 2.5.6 3.5L9 10l-3.1 1.6.6-3.5L4 5.6l3.5-.5z`},s=C(this.root,i);e.symbol===`circle`||e.symbol===`point`||e.symbol===`pixel`?e.symbol===`pixel`?a.setAttribute(`d`,`M8.5 6.5h1v1h-1z`):a.setAttribute(`d`,`M9 ${e.symbol===`point`?4.75:2.5}a${e.symbol===`point`?2.25:4.5} ${e.symbol===`point`?2.25:4.5} 0 1 0 0 ${e.symbol===`point`?4.5:9}a${e.symbol===`point`?2.25:4.5} ${e.symbol===`point`?2.25:4.5} 0 1 0 0 -${e.symbol===`point`?4.5:9}`):a.setAttribute(`d`,o[e.symbol]||o.square),a.setAttribute(`fill`,e.symbol.endsWith(`_line`)?`none`:s),a.setAttribute(`stroke`,s),a.setAttribute(`stroke-width`,String(e.style?.stroke_width||1)),r.appendChild(a),n.appendChild(r),n.style.width=`18px`,n.style.height=`14px`}else if(e.line){let t=`http://www.w3.org/2000/svg`,r=document.createElementNS(t,`svg`);r.setAttribute(`viewBox`,`0 0 22 12`),r.setAttribute(`width`,`22`),r.setAttribute(`height`,`12`);let a=document.createElementNS(t,`line`);a.setAttribute(`x1`,`1`),a.setAttribute(`y1`,`6`),a.setAttribute(`x2`,`21`),a.setAttribute(`y2`,`6`),a.setAttribute(`stroke`,C(this.root,i)),a.setAttribute(`stroke-width`,String(e.style?.width??1.5)),e.style?.dash&&e.style.dash.length&&a.setAttribute(`stroke-dasharray`,e.style.dash.join(` `)),r.appendChild(a),n.appendChild(r),n.style.width=`22px`,n.style.height=`12px`}else n.style.background=C(this.root,i);this._applySlot(n,`legend_swatch`),t.appendChild(n),t.appendChild(document.createTextNode(e.name)),r.appendChild(t)}return e.appendChild(r),this._legends.push(r),r}_positionLegend(e,t){if(!e)return;let n=this.size.w-(this.plot.x+this.plot.w),r=t.includes(`left`)?`left`:t.includes(`right`)?`right`:`center`,i=t.includes(`upper`)?`upper`:t.includes(`lower`)?`lower`:`center`,a=r===`left`?this.plot.x+6:r===`center`?this.plot.x+this.plot.w/2:null,o=r===`right`?n+6:null,s=i===`upper`?this.plot.y+6:i===`center`?this.plot.y+this.plot.h/2:null,c=i===`lower`?this.size.h-(this.plot.y+this.plot.h)+6:null;e.style.setProperty(`--xy-legend-left`,a==null?`auto`:a+`px`),e.style.setProperty(`--xy-legend-right`,o==null?`auto`:o+`px`),e.style.setProperty(`--xy-legend-top`,s==null?`auto`:s+`px`),e.style.setProperty(`--xy-legend-bottom`,c==null?`auto`:c+`px`);let l=r===`center`?`-50%`:`0`,u=i===`center`?`-50%`:`0`;e.style.setProperty(`--xy-legend-transform`,`translate(${l},${u})`)}_buildColorbar(e){let t=this.spec.colorbar;if(!t)return;let n=document.createElement(`div`),r=t.orientation===`horizontal`;n.style.cssText=`position:absolute;pointer-events:none;z-index:4;`,this._applySlot(n,`colorbar`);let i=document.createElement(`div`),a=Math.max(0,Number(t.levels)||0),o;if(a>0){let e=m(t.colormap||`viridis`),n=[];for(let t=0;t<a;t++){let r=Math.min(255,Math.round(255*(t+.5)/a)),i=`rgb(${e[r*4]},${e[r*4+1]},${e[r*4+2]})`;n.push(`${i} ${100*t/a}% ${100*(t+1)/a}%`)}o=`linear-gradient(to ${r?`right`:`top`},${n.join(`,`)})`}else{let e=p(t.colormap||`viridis`);o=`linear-gradient(to ${r?`right`:`top`},${e.map(e=>`rgb(${e[0]},${e[1]},${e[2]})`).join(`,`)})`}i.style.cssText=r?`position:absolute;inset:0 0 auto 0;height:${X}px;`:`position:absolute;inset:0 auto 0 0;width:${X}px;`,i.style.setProperty(`--xy-colorbar-gradient`,o),this._applySlot(i,`colorbar_bar`),n.appendChild(i);let s=t.domain||[0,1],c=Number(s[0]),l=Number(s[1]),u=l-c||1,d=T(c,l,8),f=Array.isArray(t.ticks),h=f?t.ticks:d.ticks,g=d.step;for(let e of h){let t=Number(e);if(!Number.isFinite(t)||t<Math.min(c,l)||t>Math.max(c,l))continue;let i=document.createElement(`span`);i.textContent=f?te(t):M(t,g);let a=(t-c)/u;i.style.cssText=r?`position:absolute;left:${100*a}%;top:20px;transform:translateX(-50%);white-space:nowrap;`:`position:absolute;left:23px;top:${100*(1-a)}%;transform:translateY(-50%);white-space:nowrap;`,this._applySlot(i,`colorbar_tick`),n.appendChild(i)}if(t.label){let e=document.createElement(`span`);e.textContent=String(t.label),e.style.cssText=r?`position:absolute;left:50%;top:36px;transform:translateX(-50%);white-space:nowrap;`:`position:absolute;left:58px;top:50%;writing-mode:vertical-rl;transform:translateY(-50%) rotate(180deg);white-space:nowrap;`,this._applySlot(e,`colorbar_title`),n.appendChild(e)}n.title=`${t.label?t.label+`: `:``}${s[0]} – ${s[1]}`,e.appendChild(n),this._colorbar=n,this._colorbarHorizontal=r,this._positionColorbar()}_positionColorbar(){if(!this._colorbar)return;let e=this._colorbarHorizontal,t=!e&&this._compactVerticalColorbar,n=t?nt:tt;this._colorbar.style.left=(e?this.plot.x:this.plot.x+this.plot.w+this._rightAxisRoom+n)+`px`,this._colorbar.style.top=(e?this.plot.y+this.plot.h+(this._bottomAxisRoom||8):this.plot.y)+`px`,this._colorbar.style.width=(e?this.plot.w:t?X:66)+`px`,this._colorbar.style.height=(e?50:Math.max(24,this.plot.h))+`px`,this._colorbar.dataset.xyCompact=t?`true`:`false`;for(let e of this._colorbar.querySelectorAll(`[data-xy-slot="colorbar_tick"], [data-xy-slot="colorbar_title"]`))e.hidden=t}_initGl(e){let t=window.devicePixelRatio||1;this.dpr=t,this.canvas.width=this.plot.w*t,this.canvas.height=this.plot.h*t,this.chrome.width=this.size.w*t,this.chrome.height=this.size.h*t,this.chrome.style.width=this.size.w+`px`,this.chrome.style.height=this.size.h+`px`,this.overlay.width=this.size.w*t,this.overlay.height=this.size.h*t,this.overlay.style.width=this.size.w+`px`,this.overlay.style.height=this.size.h+`px`,Z.reserve(this);let n=this.canvas.getContext(`webgl2`,{antialias:!1,premultipliedAlpha:!0,alpha:!0});if(!n)throw Z.cancel(this),Error(`webgl2 unavailable`);this.gl=n,Z.acquired(this),n.enable(n.BLEND),n.blendFunc(n.ONE,n.ONE_MINUS_SRC_ALPHA),this._progCache=new Map,this._glPrograms=this._progCache,this.quad=n.createBuffer(),this.quad._fcId=++this._bufSeq,n.bindBuffer(n.ARRAY_BUFFER,this.quad),n.bufferData(n.ARRAY_BUFFER,new Float32Array([0,0,1,0,0,1,1,1]),n.STATIC_DRAW),this.quadVao=n.createVertexArray(),n.bindVertexArray(this.quadVao),n.enableVertexAttribArray(P.a_corner),n.vertexAttribPointer(P.a_corner,2,n.FLOAT,!1,0,0),n.vertexAttribDivisor(P.a_corner,0),n.bindVertexArray(null),this.gpuTraces=this.spec.traces.map(t=>this._buildTrace(e,t)),this._updatePickable()}_updatePickable(){this._pickable=this.gpuTraces.some(e=>J(e.trace.kind).pointPick&&(e.tier!==`density`||e.drill)),this._pickable&&!this.pickFbo&&this._initPickTarget(),this._syncModebarSelect?.()}_prog(e,t,n){let r=this._progCache.get(e);return r||(r=se(this.gl,t,n),this._progCache.set(e,r)),r}get pointProg(){return this._prog(`point`,ce,le)}get pointSimpleProg(){return this._prog(`point-simple`,ue,de)}get lineProg(){return this._prog(`line`,_e,ve)}get segmentProg(){return this._prog(`segment`,ye,be)}get meshProg(){return this._prog(`mesh`,xe,Se)}get areaProg(){return this._prog(`area`,we,Te)}get rectProg(){return this._prog(`rect`,Ee,Oe)}get barProg(){return this._prog(`bar`,De,Oe)}get pickProg(){return this._prog(`pick`,fe,pe)}get densityProg(){return this._prog(`density`,me,he)}get heatmapProg(){return this._prog(`heatmap`,me,ge)}_lut(e){if(this._lutCache.has(e))return this._lutCache.get(e);let t=this.gl,n=t.createTexture();return t.bindTexture(t.TEXTURE_2D,n),t.texImage2D(t.TEXTURE_2D,0,t.RGBA,256,1,0,t.RGBA,t.UNSIGNED_BYTE,m(e)),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_MIN_FILTER,t.NEAREST),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_MAG_FILTER,t.NEAREST),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_WRAP_S,t.CLAMP_TO_EDGE),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_WRAP_T,t.CLAMP_TO_EDGE),this._lutCache.set(e,n),n}_paletteLut(e){let t=`pal:`+e.join(`,`);if(this._lutCache.has(t))return this._lutCache.get(t);let n=this.gl,r=new Uint8Array(256*4);for(let t=0;t<256;t++){let n=_(e[t%e.length]);r[t*4]=n[0]*255,r[t*4+1]=n[1]*255,r[t*4+2]=n[2]*255,r[t*4+3]=255}let i=n.createTexture();return n.bindTexture(n.TEXTURE_2D,i),n.texImage2D(n.TEXTURE_2D,0,n.RGBA,256,1,0,n.RGBA,n.UNSIGNED_BYTE,r),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_MIN_FILTER,n.NEAREST),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_MAG_FILTER,n.NEAREST),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_WRAP_S,n.CLAMP_TO_EDGE),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_WRAP_T,n.CLAMP_TO_EDGE),this._lutCache.set(t,i),i}_buildTrace(e,t){this.gl;let n={trace:t,tier:t.tier,color:[.3,.47,.66,1],xAxis:typeof t.x_axis==`string`?t.x_axis:`x`,yAxis:typeof t.y_axis==`string`?t.y_axis:`y`};if(t.tier===`density`){let r=t.density,i=this.spec.columns[r.buf],a=this._columnView(e,i),o=r.enc===`log-u8`?Ne(a,r.max):a;return n.densityNormMax=r.max,n.density={w:r.w,h:r.h,max:r.max,normMax:r.max,colormap:r.colormap,color:r.color?v(this.root,r.color,[.3,.47,.66,1]):null,xRange:r.x_range,yRange:r.y_range,grid:R(o),tex:this._uploadGrid(o,r.w,r.h,r.max),lut:this._lut(r.colormap)},n.sampleOverlay=this._buildDensitySample(t,r.sample,e),n._shownDensity=n.density,V(this,n,n.density),n}if(J(t.kind).build(this,n,t,e),t.keys&&Number.isInteger(t.keys.lo)&&Number.isInteger(t.keys.hi)){let r=this._columnView(e,this.spec.columns[t.keys.lo]),i=this._columnView(e,this.spec.columns[t.keys.hi]),a=Math.min(n.n||0,r.length,i.length);n._transitionKeys=Array(a),n._transitionKeyIndex=new Map;for(let e=0;e<a;e++){let t=`${i[e]}:${r[e]}`;if(n._transitionKeyIndex.has(t))throw Error(`xy: duplicate binary animation key`);n._transitionKeys[e]=t,n._transitionKeyIndex.set(t,e)}}return n}_buildXY(e,t,n){let r=this._columnView(n,this.spec.columns[t.x]),i=this._columnView(n,this.spec.columns[t.y]);e.xMeta={...this.spec.columns[t.x]},e.yMeta={...this.spec.columns[t.y]},e.n=Math.min(r.length,i.length),e._cpu={x:r,y:i,xMeta:e.xMeta,yMeta:e.yMeta},e.xBuf=this._upload(r),e.yBuf=this._upload(i)}_buildInstanceStyleChannels(e,t,n,r){let i=e=>t.channels&&t.channels[e],a=Number(t.style&&t.style.artist_alpha);if(i(`opacity`)||i(`artist_alpha`)||i(r)||i(`symbol`)||Number.isFinite(a)){let t=new Float32Array(e.n*4);for(let n=0;n<e.n;n++)t[n*4]=1,t[n*4+1]=Number.isFinite(a)?a:-1,t[n*4+2]=-1,t[n*4+3]=-1;let o=(r,a,o=1)=>{let s=i(r);if(!s)return;let c=this._columnView(n,this.spec.columns[s.buf]);for(let n=0;n<e.n;n++)t[n*4+a]=c[n*(s.components||1)]*o};o(`opacity`,0),o(`artist_alpha`,1),o(r,2,this.dpr),o(`symbol`,3),e.styleBuf=this._upload(t)}let o=i(`corner_radius`);if(o){let t=this._columnView(n,this.spec.columns[o.buf]),r=o.components||1,i=new Float32Array(e.n*2);for(let n=0;n<e.n;n++)i[n*2]=t[n*r]*this.dpr,i[n*2+1]=(r>1?t[n*r+1]:t[n*r])*this.dpr;e.radiusBuf=this._upload(i)}t.stroke&&t.stroke.mode===`direct_rgba`&&(e.strokeBuf=this._upload(this._columnView(n,this.spec.columns[t.stroke.buf])))}_buildScatterMark(e,t,n){this._buildXY(e,t,n),e.colorMode=0,e.color=v(this.root,t.color&&t.color.color,[.3,.47,.66,1]),t.color&&t.color.mode===`continuous`?(e.colorMode=1,e._cpu.color=this._columnView(n,this.spec.columns[t.color.buf]),e.cBuf=this._upload(e._cpu.color),e.lut=this._lut(t.color.colormap)):t.color&&t.color.mode===`categorical`?(e.colorMode=2,e._cpu.color=this._columnView(n,this.spec.columns[t.color.buf]),e.cBuf=this._upload(e._cpu.color),e.lut=this._paletteLut(t.color.palette)):t.color&&t.color.mode===`direct_rgba`&&(e.colorMode=3,e._cpu.rgba=this._columnView(n,this.spec.columns[t.color.buf]),e.rgbaBuf=this._upload(e._cpu.rgba)),e.sizeMode=0,e.size=t.size&&t.size.size||4,e.sizeRange=[2,18],t.size&&t.size.mode===`continuous`&&(e.sizeMode=1,e._cpu.size=this._columnView(n,this.spec.columns[t.size.buf]),e.sBuf=this._upload(e._cpu.size),e.sizeRange=t.size.range_px),this._buildInstanceStyleChannels(e,t,n,`stroke_width`),this._pointMarkStyle(e,t)}_pointMarkStyle(e,t){let n=t.style||{};e.symbol={circle:0,square:1,diamond:2,triangle:3,cross:4,hexagon:5,pentagon:6,star:7,triangle_down:8,triangle_left:9,triangle_right:10,x:11,point:12,pixel:13,thin_diamond:14,plus_line:15,x_line:16}[n.symbol]||0,e.pointStrokeWidth=Number(n.stroke_width)||0,e.pointStrokeFace=!n.stroke&&(!t.stroke||t.stroke.mode===`match_fill`),e.pointStroke=n.stroke?v(this.root,n.stroke,[e.color[0],e.color[1],e.color[2],1]):null}_sampleTraceSpec(e,t){return{id:e.id,kind:`scatter`,name:e.name,style:t.style||e.style||{},tier:`sampled`,x:t.x&&t.x.col,y:t.y&&t.y.col,x_axis:e.x_axis,y_axis:e.y_axis,color:t.color,size:t.size,stroke:t.stroke,channels:t.channels}}_buildDensitySample(e,t,n){if(!t||!t.x||!t.y||t.x.col===void 0||t.y.col===void 0)return null;let r=this._sampleTraceSpec(e,t),i={trace:r,tier:`sampled`,xAxis:typeof e.x_axis==`string`?e.x_axis:`x`,yAxis:typeof e.y_axis==`string`?e.y_axis:`y`};return this._buildScatterMark(i,r,n),i.win={x0:t.x_range[0],x1:t.x_range[1],y0:t.y_range[0],y1:t.y_range[1]},i.sample={n:t.n,visible:t.visible},i}_destroyDensitySample(e){let t=e&&e.sampleOverlay;if(!(!t||!this.gl)){for(let e of[t.xBuf,t.yBuf,t.cBuf,t.rgbaBuf,t.sBuf,t.styleBuf,t.strokeBuf,t.selBuf,t.dBuf])e&&this.gl.deleteBuffer(e);e.sampleOverlay=null}}_applyDensitySample(e,t,n){if(this._destroyDensitySample(e),!t||!t.x||!t.y||t.x.buf===void 0||t.y.buf===void 0){this._refreshReductionBadges();return}let r=this.gl,i={id:e.trace.id,kind:`scatter`,name:e.trace.name,style:t.style||e.trace.style||{},tier:`sampled`,x_axis:e.trace.x_axis,y_axis:e.trace.y_axis,color:t.color,size:t.size,stroke:t.stroke,channels:t.channels},a={trace:i,tier:`sampled`,xAxis:e.xAxis,yAxis:e.yAxis,xBuf:r.createBuffer(),yBuf:r.createBuffer(),xMeta:{offset:t.x.offset,scale:t.x.scale},yMeta:{offset:t.y.offset,scale:t.y.scale},n:Math.min(t.x.len,t.y.len),win:{x0:t.x_range[0],x1:t.x_range[1],y0:t.y_range[0],y1:t.y_range[1]},sample:{n:t.n,visible:t.visible},selActive:!1,colorMode:0,color:v(this.root,t.color&&t.color.color,[.3,.47,.66,1]),sizeMode:0,size:t.size&&t.size.size||4,sizeRange:[2,18]};if(r.bindBuffer(r.ARRAY_BUFFER,a.xBuf),r.bufferData(r.ARRAY_BUFFER,this._asF32(n[t.x.buf]),r.STATIC_DRAW),r.bindBuffer(r.ARRAY_BUFFER,a.yBuf),r.bufferData(r.ARRAY_BUFFER,this._asF32(n[t.y.buf]),r.STATIC_DRAW),t.color&&t.color.buf!==void 0){a.colorMode=t.color.mode===`continuous`?1:t.color.mode===`categorical`?2:3;let e=t.color.dtype===`u8`?this._asU8(n[t.color.buf]):this._asF32(n[t.color.buf]),i=a.colorMode===3?`rgbaBuf`:`cBuf`;a[i]=r.createBuffer(),a[i]._fcType=e instanceof Uint8Array?r.UNSIGNED_BYTE:r.FLOAT,r.bindBuffer(r.ARRAY_BUFFER,a[i]),r.bufferData(r.ARRAY_BUFFER,e,r.STATIC_DRAW),a.colorMode!==3&&(a.lut=t.color.mode===`continuous`?this._lut(t.color.colormap):this._paletteLut(t.color.palette))}t.size&&t.size.mode===`continuous`&&(a.sizeMode=1,a.sBuf=r.createBuffer(),r.bindBuffer(r.ARRAY_BUFFER,a.sBuf),r.bufferData(r.ARRAY_BUFFER,this._asF32(n[t.size.buf]),r.STATIC_DRAW),a.sizeRange=t.size.range_px);let o=e=>t.channels&&t.channels[e],s=Number(i.style&&i.style.artist_alpha);if(o(`opacity`)||o(`artist_alpha`)||o(`stroke_width`)||o(`symbol`)||Number.isFinite(s)){let e=new Float32Array(a.n*4);for(let t=0;t<a.n;t++)e[t*4]=1,e[t*4+1]=Number.isFinite(s)?s:-1,e[t*4+2]=-1,e[t*4+3]=-1;let t=(t,r,i=1)=>{let s=o(t);if(!s)return;let c=s.dtype===`u8`?this._asU8(n[s.buf]):this._asF32(n[s.buf]),l=s.components||1;for(let t=0;t<a.n;t++)e[t*4+r]=c[t*l]*i};t(`opacity`,0),t(`artist_alpha`,1),t(`stroke_width`,2,this.dpr),t(`symbol`,3),a.styleBuf=this._upload(e)}t.stroke&&t.stroke.mode===`direct_rgba`&&(a.strokeBuf=this._upload(this._asU8(n[t.stroke.buf]))),this._pointMarkStyle(a,i),e.sampleOverlay=a,this._refreshReductionBadges()}_drawDensitySample(e,t,n,r,i,a=1){let o=e&&e.sampleOverlay;!o||!o.n||!this._viewOverlaps(o.win)||this._drawPoints(o,this._map(o.xMeta,t,n,o.xAxis),this._map(o.yMeta,r,i,o.yAxis),a)}_resolveMarkFill(e,t){let n=e&&e.fill;if(!n||!Array.isArray(n.stops)||n.stops.length<2)return null;let r=n.space===`plot`?2:1,i={down:0,up:1,left:2,right:3}[n.dir]??0,a=Math.min(n.stops.length,8),o=new Float32Array(8),s=new Float32Array(32);for(let e=0;e<a;e++){let r=n.stops[e]||[];o[e]=Math.min(Math.max(Number(r[0])||0,0),1);let i=String(r[1]||``).trim(),a=i.toLowerCase()===`currentcolor`?t:v(this.root,i,t);s[e*4]=a[0]*a[3],s[e*4+1]=a[1]*a[3],s[e*4+2]=a[2]*a[3],s[e*4+3]=a[3]}return{mode:r,dir:i,count:a,pos:o,colors:s}}_setGradientUniforms(e,t){let n=this.gl,r=t=>F(n,e,t);if(!t){n.uniform1i(r(`u_gradMode`),0);return}n.uniform1i(r(`u_gradMode`),t.mode),n.uniform1i(r(`u_gradDir`),t.dir),n.uniform1i(r(`u_gradCount`),t.count),n.uniform1fv(r(`u_gradPos`),t.pos),n.uniform4fv(r(`u_gradColor`),t.colors)}_fillOpacity(e,t=1){return Number(e.opacity??t)*Number(e.fill_opacity??1)}_strokeOpacity(e,t=1){return Number(e.opacity??t)*Number(e.stroke_opacity??1)}_setRectStyleUniforms(e,t){let n=this.gl,r=t=>F(n,e,t);n.uniform2f(r(`u_res`),this.canvas.width,this.canvas.height);let i=t.cornerRadius||[0,0];n.uniform2f(r(`u_radius`),i[0]*this.dpr,i[1]*this.dpr),n.uniform1f(r(`u_strokeWidth`),(t.strokeWidth||0)*this.dpr);let a=t.strokeColor||[0,0,0,0];n.uniform4f(r(`u_stroke`),a[0],a[1],a[2],a[3]),n.uniform1i(r(`u_strokeMode`),+!!t.strokeBuf),n.uniform1f(r(`u_strokeOpacity`),this._strokeOpacity(t.trace.style||{})),this._setGradientUniforms(e,t.grad)}_rectMarkStyleGpu(e,t){let n=t.style||{},r=n.corner_radius;e.cornerRadius=Array.isArray(r)?[Number(r[0])||0,Number(r[1])||0]:[Number(r)||0,Number(r)||0],e.strokeWidth=Number(n.stroke_width)||0;let i=[e.color[0],e.color[1],e.color[2],1];e.strokeColor=n.stroke?v(this.root,n.stroke,i):i,e.grad=this._resolveMarkFill(n,e.color)}_smoothArrays(e,t,n,r,i){return!e.style||e.style.curve!==`smooth`?null:Ae(t,n,r||null,i,32768)}_stepArrays(e,t,n,r){let i=e.style&&e.style.step;if(!i||r<2)return null;let a=i===`mid`?3:2,o=1+(r-1)*a,s=new Float32Array(o),c=new Float32Array(o);s[0]=t[0],c[0]=n[0];let l=1;for(let e=1;e<r;e++)if(i===`pre`)s[l]=t[e-1],c[l]=n[e],l++,s[l]=t[e],c[l]=n[e],l++;else if(i===`mid`){let r=(t[e-1]+t[e])*.5;s[l]=r,c[l]=n[e-1],l++,s[l]=r,c[l]=n[e],l++,s[l]=t[e],c[l]=n[e],l++}else s[l]=t[e],c[l]=n[e-1],l++,s[l]=t[e],c[l]=n[e],l++;return{x:s,y:c,n:o}}_buildLineMark(e,t,n){let r=this._columnView(n,this.spec.columns[t.x]),i=this._columnView(n,this.spec.columns[t.y]);e.xMeta={...this.spec.columns[t.x]},e.yMeta={...this.spec.columns[t.y]},e.n=Math.min(r.length,i.length),e._cpu={x:r,y:i,xMeta:e.xMeta,yMeta:e.yMeta};let a=this._smoothArrays(t,r,i,null,e.n)||{x:r,y:i,n:e.n},o=this._stepArrays(t,a.x,a.y,a.n),s=o?o.x:a.x,c=o?o.y:a.y;e.xBuf=this._upload(s),e.yBuf=this._upload(c),e.n=o?o.n:a.n,e._dashX=s,e._dashY=c,e.color=v(this.root,t.style&&t.style.color,[.3,.47,.66,1])}_buildSegmentMark(e,t,n){let r=this._columnView(n,this.spec.columns[t.x0]),i=this._columnView(n,this.spec.columns[t.x1]),a=this._columnView(n,this.spec.columns[t.y0]),o=this._columnView(n,this.spec.columns[t.y1]);e.x0Meta={...this.spec.columns[t.x0]},e.x1Meta={...this.spec.columns[t.x1]},e.y0Meta={...this.spec.columns[t.y0]},e.y1Meta={...this.spec.columns[t.y1]},e.n=Math.min(r.length,i.length,a.length,o.length),e.x0Buf=this._upload(r),e.x1Buf=this._upload(i),e.y0Buf=this._upload(a),e.y1Buf=this._upload(o),e._segmentCpu={x0:r,x1:i,y0:a,y1:o},e.color=v(this.root,t.style&&t.style.color,[.3,.47,.66,1]),e.colorMode=0,t.color&&t.color.mode===`continuous`?(e.colorMode=1,e.cBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf])),e.lut=this._lut(t.color.colormap)):t.color&&t.color.mode===`categorical`?(e.colorMode=2,e.cBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf])),e.lut=this._paletteLut(t.color.palette)):t.color&&t.color.mode===`direct_rgba`&&(e.colorMode=3,e.rgbaBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf]))),this._buildInstanceStyleChannels(e,t,n,`width`),e._cpu={x:r,y:o,xMeta:e.x0Meta,yMeta:e.y1Meta}}_buildMeshMark(e,t,n){for(let r of[`x0`,`x1`,`x2`,`y0`,`y1`,`y2`]){let i=this._columnView(n,this.spec.columns[t[r]]);e[r+`Meta`]={...this.spec.columns[t[r]]},e[r+`Buf`]=this._upload(i),e.n=e.n===void 0?i.length:Math.min(e.n,i.length)}e.color=v(this.root,t.color&&t.color.color,[.3,.47,.66,1]),e.colorMode=0,t.color&&t.color.mode===`continuous`?(e.colorMode=1,e.cBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf])),e.lut=this._lut(t.color.colormap)):t.color&&t.color.mode===`categorical`?(e.colorMode=2,e.cBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf])),e.lut=this._paletteLut(t.color.palette)):t.color&&t.color.mode===`direct_rgba`&&(e.colorMode=3,e.rgbaBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf]))),this._buildInstanceStyleChannels(e,t,n,`stroke_width`);let r=t.style||{};e.meshStrokeWidth=Number(r.stroke_width)||0,e.meshStroke=v(this.root,r.stroke||`transparent`,[0,0,0,0])}_buildHexbinMark(e,t,n){let r=this._columnView(n,this.spec.columns[t.x]),i=this._columnView(n,this.spec.columns[t.y]),a={...this.spec.columns[t.x]},o={...this.spec.columns[t.y]},s=Math.min(r.length,i.length),c=t.style||{},l=(Number(c.hex_dx)||0)*(a.scale||1),u=(Number(c.hex_dy)||0)*(o.scale||1),d=[0,l/2,l/2,0,-l/2,-l/2,0],f=[-u/3,-u/6,u/6,u/3,u/6,-u/6,-u/3],p={};for(let e of[`x0`,`x1`,`x2`,`y0`,`y1`,`y2`])p[e]=new Float32Array(s*6);for(let e=0;e<s;e++){let t=r[e],n=i[e];for(let r=0;r<6;r++){let i=e*6+r;p.x0[i]=t,p.y0[i]=n,p.x1[i]=t+d[r],p.y1[i]=n+f[r],p.x2[i]=t+d[r+1],p.y2[i]=n+f[r+1]}}for(let t of[`x0`,`x1`,`x2`])e[t+`Meta`]={...a},e[t+`Buf`]=this._upload(p[t]);for(let t of[`y0`,`y1`,`y2`])e[t+`Meta`]={...o},e[t+`Buf`]=this._upload(p[t]);if(e.n=s*6,e.color=v(this.root,t.color&&t.color.color,[.3,.47,.66,1]),e.colorMode=0,t.color&&(t.color.mode===`continuous`||t.color.mode===`categorical`)){e.colorMode=t.color.mode===`continuous`?1:2;let r=this._columnView(n,this.spec.columns[t.color.buf]),i=new Float32Array(s*6);for(let e=0;e<s;e++)i.fill(r[e],e*6,e*6+6);e.cBuf=this._upload(i),e.lut=t.color.mode===`continuous`?this._lut(t.color.colormap):this._paletteLut(t.color.palette)}e.meshStrokeWidth=Number(c.stroke_width)||0,e.meshStroke=v(this.root,c.stroke||`transparent`,[0,0,0,0])}_buildAreaMark(e,t,n){let r=this._columnView(n,this.spec.columns[t.x]),i=this._columnView(n,this.spec.columns[t.y]),a=this._columnView(n,this.spec.columns[t.base]);e.xMeta={...this.spec.columns[t.x]},e.yMeta={...this.spec.columns[t.y]},e.baseMeta={...this.spec.columns[t.base]},e.n=Math.min(r.length,i.length,a.length),e._cpu={x:r,y:i,base:a,xMeta:e.xMeta,yMeta:e.yMeta};let o=this._smoothArrays(t,r,i,a,e.n);e.xBuf=this._upload(o?o.x:r),e.yBuf=this._upload(o?o.y:i),e.baseBuf=this._upload(o?o.extra:a),o&&(e.n=o.n),e._dashX=o?o.x:r,e._dashY=o?o.y:i,e.color=v(this.root,t.style&&t.style.color,[.3,.47,.66,1]),e.lineColor=v(this.root,t.style&&(t.style.line_color||t.style.color),e.color),e.grad=this._resolveMarkFill(t.style,e.color)}_buildRectMark(e,t,n){let r=this._columnView(n,this.spec.columns[t.x0]),i=this._columnView(n,this.spec.columns[t.x1]),a=this._columnView(n,this.spec.columns[t.y0]),o=this._columnView(n,this.spec.columns[t.y1]);e.x0Meta={...this.spec.columns[t.x0]},e.x1Meta={...this.spec.columns[t.x1]},e.y0Meta={...this.spec.columns[t.y0]},e.y1Meta={...this.spec.columns[t.y1]},e.n=Math.min(r.length,i.length,a.length,o.length),e._cpuRect={x0:r,x1:i,y0:a,y1:o,x0Meta:e.x0Meta,x1Meta:e.x1Meta,y0Meta:e.y0Meta,y1Meta:e.y1Meta},e.x0Buf=this._upload(r),e.x1Buf=this._upload(i),e.y0Buf=this._upload(a),e.y1Buf=this._upload(o),e.color=v(this.root,t.style&&t.style.color,[.3,.47,.66,1]),e.colorMode=0,t.color&&t.color.mode===`continuous`?(e.colorMode=1,e.cBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf])),e.lut=this._lut(t.color.colormap)):t.color&&t.color.mode===`categorical`?(e.colorMode=2,e.cBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf])),e.lut=this._paletteLut(t.color.palette)):t.color&&t.color.mode===`direct_rgba`&&(e.colorMode=3,e.rgbaBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf]))),this._buildInstanceStyleChannels(e,t,n,`stroke_width`),this._rectMarkStyleGpu(e,t)}_buildBarMark(e,t,n){let r=t.bar;if(!r)return this._buildRectMark(e,t,n);let i=this._columnView(n,this.spec.columns[r.pos]),a=this._columnView(n,this.spec.columns[r.value1]);if(e.posMeta={...this.spec.columns[r.pos]},e.value1Meta={...this.spec.columns[r.value1]},e.n=Math.min(i.length,a.length),e.posBuf=this._upload(i),e.value1Buf=this._upload(a),e.orientation=+(r.orientation===`horizontal`),e.value0Const=r.value0_const??0,e.value0Mode=r.value0===void 0?0:1,e.width=r.width,e.value0Mode===1){let t=this._columnView(n,this.spec.columns[r.value0]);e.value0Meta={...this.spec.columns[r.value0]},e.n=Math.min(e.n,t.length),e._cpuValue0=t,e.value0Buf=this._upload(t)}e._cpuBar={pos:i,value1:a,value0:e._cpuValue0||null,posMeta:e.posMeta,value1Meta:e.value1Meta,value0Meta:e.value0Meta||null,value0Const:e.value0Const,width:e.width},e._cpu=e.orientation===1?{x:a,y:i,xMeta:e.value1Meta,yMeta:e.posMeta,value0:e._cpuValue0}:{x:i,y:a,xMeta:e.posMeta,yMeta:e.value1Meta,value0:e._cpuValue0},e.color=v(this.root,t.style&&t.style.color,[.3,.47,.66,1]),e.colorMode=0,t.color&&t.color.mode===`continuous`?(e.colorMode=1,e.cBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf])),e.lut=this._lut(t.color.colormap)):t.color&&t.color.mode===`categorical`?(e.colorMode=2,e.cBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf])),e.lut=this._paletteLut(t.color.palette)):t.color&&t.color.mode===`direct_rgba`&&(e.colorMode=3,e.rgbaBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf]))),this._buildInstanceStyleChannels(e,t,n,`stroke_width`),this._rectMarkStyleGpu(e,t)}_buildHeatmapMark(e,t,n){let r=t.heatmap,i=Array.isArray(r.rgba_bufs),a=i?r.rgba_bufs.map(e=>this._columnView(n,this.spec.columns[e])):this._columnView(n,this.spec.columns[r.buf]);e.heatmap={w:r.w,h:r.h,xRange:r.x_range,yRange:r.y_range,colormap:r.colormap,truecolor:i,tex:i?this._uploadRgbaGrid(a,r.w,r.h):this._uploadHeatmapGrid(a,r.w,r.h),lut:i?null:this._lut(r.colormap)},i||(e._cpuHeatmap={grid:a})}_uploadRgbaGrid(e,t,n){let r=this.gl,i=r.createTexture(),a=new Uint8Array(t*n*4);for(let r=0;r<t*n;r++)for(let t=0;t<4;t++)a[r*4+t]=Math.round(255*Math.max(0,Math.min(1,e[t][r])));return r.bindTexture(r.TEXTURE_2D,i),r.texImage2D(r.TEXTURE_2D,0,r.RGBA,t,n,0,r.RGBA,r.UNSIGNED_BYTE,a),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_MIN_FILTER,r.NEAREST),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_MAG_FILTER,r.NEAREST),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_S,r.CLAMP_TO_EDGE),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_T,r.CLAMP_TO_EDGE),i}_uploadGrid(e,t,n,r){let i=this.gl,a=i.createTexture();return z(i,a,e,t,n,r),a}_uploadHeatmapGrid(e,t,n){let r=this.gl,i=r.createTexture(),a=new Uint8Array(e.length);for(let t=0;t<e.length;t++){let n=e[t];Number.isFinite(n)&&(a[t]=Math.max(1,Math.min(255,Math.round(1+254*Math.max(0,Math.min(1,n))))))}r.bindTexture(r.TEXTURE_2D,i);let o=r.getParameter(r.UNPACK_ALIGNMENT);return r.pixelStorei(r.UNPACK_ALIGNMENT,1),r.texImage2D(r.TEXTURE_2D,0,r.R8,t,n,0,r.RED,r.UNSIGNED_BYTE,a),r.pixelStorei(r.UNPACK_ALIGNMENT,o),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_MIN_FILTER,r.NEAREST),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_MAG_FILTER,r.NEAREST),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_S,r.CLAMP_TO_EDGE),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_T,r.CLAMP_TO_EDGE),i}_columnView(e,t){let n=Array.isArray(e);if(n!==Number.isInteger(t.buf))throw Error(n?`xy: transport delivered a buffer list but the spec column has no wire-buffer index`:`xy: spec column carries a wire-buffer index but the transport delivered one blob`);let r=a(n?e[t.buf]:e,`chart payload`),i=Number(t.byte_offset),o=Number(t.len);if(!Number.isSafeInteger(i)||i<0||!Number.isSafeInteger(o)||o<0)throw RangeError(`column offset/length must be non-negative safe integers`);let s=t.dtype===`u8`?1:4,c=r.byteOffset+i;if(i+o*s>r.byteLength)throw RangeError(`column extends past chart payload`);if(c%s!==0)throw RangeError(`column is misaligned`);return t.dtype===`u8`?new Uint8Array(r.buffer,c,o):t.dtype===`u32`?new Uint32Array(r.buffer,c,o):new Float32Array(r.buffer,c,o)}_upload(e){let t=this.gl,n=t.createBuffer();return n._fcId=++this._bufSeq,n._fcType=e instanceof Uint8Array?t.UNSIGNED_BYTE:t.FLOAT,t.bindBuffer(t.ARRAY_BUFFER,n),t.bufferData(t.ARRAY_BUFFER,e,t.STATIC_DRAW),n}_bindVao(e,t,n,r){let i=this.gl;e._vaos||=new Map;let a=n.join(`|`),o=e._vaos.get(t);if(!o||o.sig!==a){o&&i.deleteVertexArray(o.vao);let n=i.createVertexArray();i.bindVertexArray(n),r(),o={vao:n,sig:a},e._vaos.set(t,o)}else i.bindVertexArray(o.vao)}_deleteVaos(e){if(!e||!e._vaos)return;let t=this.gl;if(t)for(let{vao:n}of e._vaos.values())t.deleteVertexArray(n);e._vaos=null}_vaoAttr(e,t,n,r,i=1,a=!1){let o=this.gl;o.bindBuffer(o.ARRAY_BUFFER,t),o.enableVertexAttribArray(e),o.vertexAttribPointer(e,i,t._fcType||o.FLOAT,a,0,n),o.vertexAttribDivisor(e,r)}_initPickTarget(){let e=this.gl;this.pickTex=e.createTexture(),this._allocPickTex(),this.pickFbo=e.createFramebuffer(),e.bindFramebuffer(e.FRAMEBUFFER,this.pickFbo),e.framebufferTexture2D(e.FRAMEBUFFER,e.COLOR_ATTACHMENT0,e.TEXTURE_2D,this.pickTex,0),e.bindFramebuffer(e.FRAMEBUFFER,null),this._pickDirty=!0}_allocPickTex(){let e=this.gl;e.bindTexture(e.TEXTURE_2D,this.pickTex),e.texImage2D(e.TEXTURE_2D,0,e.RGBA8,this.canvas.width,this.canvas.height,0,e.RGBA,e.UNSIGNED_BYTE,null),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MIN_FILTER,e.NEAREST),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MAG_FILTER,e.NEAREST),this._pickW=this.canvas.width,this._pickH=this.canvas.height}_map(e,t,n,r=null){if(!r)return[2/((n-t)*e.scale),(e.offset-t)/(n-t)*2-1];let i=this._axis(r),a=this._axisCoord(i,t),o=this._axisCoord(i,n);if(![a,o].every(Number.isFinite)||o===a)return[0,-2];let s=2/(o-a);return[s,-1-a*s]}_mapConst(e,t,n,r=null){if(!r)return(e-t)/(n-t)*2-1;let i=this._axis(r),a=this._axisCoord(i,e),o=this._axisCoord(i,t),s=this._axisCoord(i,n);return![a,o,s].every(Number.isFinite)||s===o?-2:(a-o)/(s-o)*2-1}_edgePadForValue(e,t,n,r){if(!Number.isFinite(e)||!Number.isFinite(t)||!Number.isFinite(n)||n===t)return 0;let i=Math.abs(n-t)*1e-10+1e-12,a=Math.max(1,r||1),o=Math.max(2,Math.ceil(this.dpr||1));return Math.abs(e-t)<=i?-(2*o)/a:Math.abs(e-n)<=i?2*o/a:0}_setAxisUniforms(e,t,n,r){let i=this.gl,a=t=>F(i,e,t);i.uniform2f(a(`${t}meta`),n&&Number.isFinite(n.offset)?n.offset:0,n&&n.scale?n.scale:1),i.uniform1i(a(`${t}mode`),this._axisMode(r))}draw(e=!1){if(!(this._destroyed||this._glLost||!this.gl)){if(this._updateZoomMenuLabel?.(),this._raf){this._rafKeepPick=this._rafKeepPick&&e;return}this._rafKeepPick=e,this._raf=requestAnimationFrame(()=>{this._raf=null,!this._destroyed&&this._drawNow()})}}_drawNow(){if(this._destroyed||!this.gl||this._glLost)return;this._healStaleTheme();let e=this.gl,{x0:t,x1:n,y0:r,y1:i}=this.view;e.bindFramebuffer(e.FRAMEBUFFER,null),e.viewport(0,0,this.canvas.width,this.canvas.height),e.clearColor(0,0,0,0),e.clear(e.COLOR_BUFFER_BIT);let a=e=>{if(e.tier===`density`){let[t,n]=this._axisRange(e.xAxis),[r,i]=this._axisRange(e.yAxis);Qe(this,e,t,n,r,i);return}J(e.trace.kind).draw(this,e,t,n,r,i)};for(let e of this._transitionOldTraces||[])a(e);for(let e of this.gpuTraces)a(e);this._drawHoverState(),this._repositionTooltip(),this._rafKeepPick||(this._pickDirty=!0),this._rafKeepPick=!1,this._drawChrome(),this._renderLassoSelection?.()}_now(){return performance.now()}_canDrawSimplePoints(e){return e.colorMode===0&&e.sizeMode===0&&!e.selActive&&!e.rgbaBuf&&!e.styleBuf&&!e.strokeBuf&&(e.symbol||0)===0&&(e.pointStrokeWidth||0)<=0&&Math.max(e.lodBlendShown??0,e.lodBlend??0)<=.001}_drawPoints(e,t,n,r=1){r*=e._transitionOpacity??1;let i=e._transitionScale??1;if(this._canDrawSimplePoints(e)){this._drawSimplePoints(e,t,n,r);return}let a=this.gl,o=this.pointProg;a.useProgram(o);let s=e=>F(a,o,e);a.uniform2f(s(`u_xmap`),t[0],t[1]),a.uniform2f(s(`u_ymap`),n[0],n[1]),this._setAxisUniforms(o,`u_x`,e.xMeta,e.xAxis),this._setAxisUniforms(o,`u_y`,e.yMeta,e.yAxis),a.uniform1f(s(`u_dpr`),this.dpr);let c=!!(e._transitionPrevXBuf&&e._transitionPrevYBuf);a.uniform1i(s(`u_transitionActive`),+!!c),a.uniform1f(s(`u_transitionProgress`),e._transitionPositionProgress??1),a.uniform1f(s(`u_size`),e.size*i),a.uniform1i(s(`u_sizeMode`),e.sizeMode),a.uniform2f(s(`u_sizeRange`),e.sizeRange[0]*i,e.sizeRange[1]*i),a.uniform1i(s(`u_colorMode`),e.colorMode);let l=this._fillOpacity(e.trace.style,.8)*r;a.uniform1f(s(`u_opacity`),l),a.uniform1f(s(`u_selectedOpacity`),this._markStateNumber(`selected`,`opacity`,1)),a.uniform1f(s(`u_unselectedOpacity`),this._markStateNumber(`unselected`,`opacity`,.12));let u=(e,t)=>{let n=t?v(this.root,t,[0,0,0,1]):null;a.uniform4f(e,n?n[0]:0,n?n[1]:0,n?n[2]:0,+!!n)};u(s(`u_selColor`),this._markStateValue(`selected`,`color`)),u(s(`u_unselColor`),this._markStateValue(`unselected`,`color`));let[d,f,p,m]=e.color;a.uniform4f(s(`u_color`),d,f,p,m),a.uniform1i(s(`u_symbol`),e.symbol||0);let h=e.pointStroke;a.uniform1f(s(`u_ptStrokeWidth`),(e.pointStrokeWidth||0)*this.dpr),a.uniform1i(s(`u_ptStrokeFace`),+!!e.pointStrokeFace),a.uniform1i(s(`u_strokeMode`),+!!e.strokeBuf),a.uniform1f(s(`u_strokeOpacity`),this._strokeOpacity(e.trace.style,.8)*r),a.uniform4f(s(`u_ptStroke`),h?h[0]:0,h?h[1]:0,h?h[2]:0,h?h[3]:0),a.uniform1i(s(`u_selActive`),+!!e.selActive);let g=e.colorMode!==0&&e.cBuf,_=e.sizeMode===1&&e.sBuf,y=e.selActive&&e.selBuf,b=e.colorMode===3&&e.rgbaBuf,x=!!e.styleBuf,S=!!e.strokeBuf;e.lut&&(a.activeTexture(a.TEXTURE0),a.bindTexture(a.TEXTURE_2D,e.lut),a.uniform1i(s(`u_lut`),0));let C=e.lodBlend??0,w=e.lodBlendShown??C;if(Math.abs(w-C)>.005&&!this._prefersReducedMotion()){let t=this._now(),n=e._blendTick?Math.min(100,t-e._blendTick):16;e._blendTick=t,w+=(C-w)*(1-Math.exp(-n/90)),e.lodBlendShown=w,this.draw()}else e.lodBlendShown=w=C,e._blendTick=0;a.uniform1f(s(`u_dblend`),w);let T=w>.001&&e.dBuf&&e.dlut;T&&(a.activeTexture(a.TEXTURE1),a.bindTexture(a.TEXTURE_2D,e.dlut)),a.uniform1i(s(`u_dlut`),1),this._bindVao(e,`points`,[e.xBuf._fcId,e.yBuf._fcId,g?e.cBuf._fcId:0,_?e.sBuf._fcId:0,y?e.selBuf._fcId:0,T?e.dBuf._fcId:0,c?e._transitionPrevXBuf._fcId:0,c?e._transitionPrevYBuf._fcId:0,b?e.rgbaBuf._fcId:0,x?e.styleBuf._fcId:0,S?e.strokeBuf._fcId:0],()=>{this._vaoAttr(P.ax,e.xBuf,0,0),this._vaoAttr(P.ay,e.yBuf,0,0),g&&this._vaoAttr(P.a_cval,e.cBuf,0,0),_&&this._vaoAttr(P.a_sval,e.sBuf,0,0),y&&this._vaoAttr(P.a_sel,e.selBuf,0,0),T&&this._vaoAttr(P.a_dval,e.dBuf,0,0),c&&(this._vaoAttr(P.a_prevx,e._transitionPrevXBuf,0,0),this._vaoAttr(P.a_prevy,e._transitionPrevYBuf,0,0)),b&&this._vaoAttr(P.a_rgba,e.rgbaBuf,0,0,4,!0),x&&this._vaoAttr(P.a_style,e.styleBuf,0,0,4),S&&this._vaoAttr(P.a_stroke,e.strokeBuf,0,0,4,!0)}),g||a.vertexAttrib1f(P.a_cval,0),_||a.vertexAttrib1f(P.a_sval,.5),y||a.vertexAttrib1f(P.a_sel,1),T||a.vertexAttrib1f(P.a_dval,0),b||a.vertexAttrib4f(P.a_rgba,d,f,p,m),x||a.vertexAttrib4f(P.a_style,1,-1,-1,-1),S||a.vertexAttrib4f(P.a_stroke,d,f,p,m),a.drawArrays(a.POINTS,0,e.n)}_drawSimplePoints(e,t,n,r=1){let i=this.gl,a=this.pointSimpleProg;i.useProgram(a);let o=e=>F(i,a,e);i.uniform2f(o(`u_xmap`),t[0],t[1]),i.uniform2f(o(`u_ymap`),n[0],n[1]),this._setAxisUniforms(a,`u_x`,e.xMeta,e.xAxis),this._setAxisUniforms(a,`u_y`,e.yMeta,e.yAxis),i.uniform1f(o(`u_dpr`),this.dpr);let s=!!(e._transitionPrevXBuf&&e._transitionPrevYBuf);i.uniform1i(o(`u_transitionActive`),+!!s),i.uniform1f(o(`u_transitionProgress`),e._transitionPositionProgress??1),i.uniform1f(o(`u_size`),e.size*(e._transitionScale??1));let[c,l,u,d]=e.color;i.uniform4f(o(`u_color`),c,l,u,d*this._fillOpacity(e.trace.style,.8)*r),this._bindVao(e,`points-simple`,[e.xBuf._fcId,e.yBuf._fcId,s?e._transitionPrevXBuf._fcId:0,s?e._transitionPrevYBuf._fcId:0],()=>{this._vaoAttr(P.ax,e.xBuf,0,0),this._vaoAttr(P.ay,e.yBuf,0,0),s&&(this._vaoAttr(P.a_prevx,e._transitionPrevXBuf,0,0),this._vaoAttr(P.a_prevy,e._transitionPrevYBuf,0,0))}),i.drawArrays(i.POINTS,0,e.n)}_drawHoverState(){let e=this._hoverTarget;if(!e||!e.g)return;let t=e.g;if(t.trace.kind!==`scatter`||t.tier===`density`||!Number.isInteger(e.index)||e.index<0||e.index>=t.n)return;let[n,r]=this._axisRange(t.xAxis),[i,a]=this._axisRange(t.yAxis);this._drawHoverPoint(t,e.index,this._map(t.xMeta,n,r,t.xAxis),this._map(t.yMeta,i,a,t.yAxis))}_drawHoverPoint(e,t,n,r){let i=this.gl,a=this.pointProg;i.useProgram(a);let o=e=>F(i,a,e);i.uniform2f(o(`u_xmap`),n[0],n[1]),i.uniform2f(o(`u_ymap`),r[0],r[1]),this._setAxisUniforms(a,`u_x`,e.xMeta,e.xAxis),this._setAxisUniforms(a,`u_y`,e.yMeta,e.yAxis);let s=Math.max((e.size||4)*1.75,(e.size||4)+5),c=Math.max(0,this._markStateNumber(`hover`,`size`,s)),l=Math.max(0,Math.min(1,this._markStateNumber(`hover`,`opacity`,.95))),u=v(this.root,this._markStatePaint(`hover`,`color`,`rgba(15,23,42,.92)`),[.06,.09,.16,.92]);i.uniform1f(o(`u_dpr`),this.dpr),i.uniform1f(o(`u_size`),c),i.uniform1i(o(`u_sizeMode`),0),i.uniform2f(o(`u_sizeRange`),c,c),i.uniform1i(o(`u_colorMode`),0),i.uniform1f(o(`u_opacity`),l),i.uniform1f(o(`u_selectedOpacity`),1),i.uniform1f(o(`u_unselectedOpacity`),1),i.uniform4f(o(`u_color`),u[0],u[1],u[2],1),i.uniform1i(o(`u_selActive`),0),i.uniform1f(o(`u_dblend`),0),this._bindVao(e,`hover`,[e.xBuf._fcId,e.yBuf._fcId],()=>{this._vaoAttr(P.ax,e.xBuf,0,0),this._vaoAttr(P.ay,e.yBuf,0,0)}),i.vertexAttrib1f(P.a_cval,0),i.vertexAttrib1f(P.a_sval,.5),i.vertexAttrib1f(P.a_sel,1),i.vertexAttrib1f(P.a_dval,0),i.drawArrays(i.POINTS,t,1)}_drawDensity(e,t,n=1){let r=this.gl,i=t||e.density;if(!i||!i.tex||!r.isTexture(i.tex))return;n*=e._transitionOpacity??1;let a=this.densityProg;r.useProgram(a);let o=e=>F(r,a,e),{x0:s,x1:c,y0:l,y1:u}=this.view,[d,f]=this._axisRange(e.xAxis),[p,m]=this._axisRange(e.yAxis);r.uniform4f(o(`u_view`),d??s,f??c,p??l,m??u),r.uniform1i(o(`u_xmode`),this._axisMode(e.xAxis)),r.uniform1i(o(`u_ymode`),this._axisMode(e.yAxis)),r.uniform4f(o(`u_gridRange`),i.xRange[0],i.xRange[1],i.yRange[0],i.yRange[1]),r.uniform1f(o(`u_opacity`),this._fillOpacity(e.trace.style)*n);let h=i.color;r.uniform1i(o(`u_constantColor`),+!!h),r.uniform4f(o(`u_color`),...h||[1,1,1,1]),r.activeTexture(r.TEXTURE0),r.bindTexture(r.TEXTURE_2D,i.tex),r.uniform1i(o(`u_grid`),0),r.activeTexture(r.TEXTURE1),r.bindTexture(r.TEXTURE_2D,i.lut),r.uniform1i(o(`u_lut`),1),r.bindVertexArray(this.quadVao),r.drawArrays(r.TRIANGLE_STRIP,0,4)}_drawHeatmap(e){let t=e.heatmap;if(!t)return;let n=this.gl,r=this.heatmapProg;n.useProgram(r);let i=e=>F(n,r,e),{x0:a,x1:o,y0:s,y1:c}=this.view,[l,u]=this._axisRange(e.xAxis),[d,f]=this._axisRange(e.yAxis);n.uniform4f(i(`u_view`),l??a,u??o,d??s,f??c),n.uniform1i(i(`u_xmode`),this._axisMode(e.xAxis)),n.uniform1i(i(`u_ymode`),this._axisMode(e.yAxis));let p=(l??a)>(u??o),m=(d??s)>(f??c);n.uniform4f(i(`u_gridRange`),t.xRange[+!!p],t.xRange[+!p],t.yRange[+!!m],t.yRange[+!m]),n.uniform1f(i(`u_opacity`),this._fillOpacity(e.trace.style)*(e._transitionOpacity??1)),n.uniform1i(i(`u_truecolor`),+!!t.truecolor),n.activeTexture(n.TEXTURE0),n.bindTexture(n.TEXTURE_2D,t.tex),n.uniform1i(i(`u_grid`),0),t.truecolor||(n.activeTexture(n.TEXTURE1),n.bindTexture(n.TEXTURE_2D,t.lut),n.uniform1i(i(`u_lut`),1)),n.bindVertexArray(this.quadVao),n.drawArrays(n.TRIANGLE_STRIP,0,4)}_drawLine(e,t,n,r=null,i=null,a=null){if(e.n<2)return;let o=this.gl;o.useProgram(this.lineProg);let s=e=>F(o,this.lineProg,e);o.uniform2f(s(`u_xmap`),t[0],t[1]),o.uniform2f(s(`u_ymap`),n[0],n[1]),this._setAxisUniforms(this.lineProg,`u_x`,e.xMeta,e.xAxis),this._setAxisUniforms(this.lineProg,`u_y`,e.yMeta,e.yAxis),o.uniform2f(s(`u_res`),this.canvas.width,this.canvas.height);let c=!!(e._transitionPrevXBuf&&e._transitionPrevYBuf);o.uniform1i(s(`u_transitionActive`),+!!c),o.uniform1f(s(`u_transitionProgress`),e._transitionPositionProgress??1);let l=Math.max(0,Math.min(1,e._transitionReveal??1));o.uniform1f(s(`u_revealProgress`),l),o.uniform1f(s(`u_revealSegments`),e.n-1),o.uniform1f(s(`u_width`),(i??e.trace.style.width??1.5)*this.dpr);let[u,d,f,p]=r||e.color,m=this._strokeOpacity(e.trace.style)*(a??1)*(e._transitionOpacity??1);o.uniform4f(s(`u_color`),u,d,f,p*m);let h=this._lineDash(e);this._bindVao(e,`line`,[e.xBuf._fcId,e.yBuf._fcId,h?e._lenBuf._fcId:0,c?e._transitionPrevXBuf._fcId:0,c?e._transitionPrevYBuf._fcId:0],()=>{this._vaoAttr(P.ax0,e.xBuf,0,1),this._vaoAttr(P.ax1,e.xBuf,4,1),this._vaoAttr(P.ay0,e.yBuf,0,1),this._vaoAttr(P.ay1,e.yBuf,4,1),h&&(this._vaoAttr(P.a_len0,e._lenBuf,0,1),this._vaoAttr(P.a_len1,e._lenBuf,4,1)),c&&(this._vaoAttr(P.a_prevx,e._transitionPrevXBuf,0,1),this._vaoAttr(P.a_prevy,e._transitionPrevYBuf,0,1),this._vaoAttr(P.a_prevx1,e._transitionPrevXBuf,4,1),this._vaoAttr(P.a_prevy1,e._transitionPrevYBuf,4,1))});let g=Math.max(0,Math.min(e.n-1,Math.ceil((e.n-1)*l)));o.drawArraysInstanced(o.TRIANGLE_STRIP,0,4,g)}_drawSegments(e,t,n){if(e.n<1)return;let r=this.gl,i=this.segmentProg;r.useProgram(i);let a=e=>F(r,i,e);r.uniform2f(a(`u_xmap`),t[0],t[1]),r.uniform2f(a(`u_ymap`),n[0],n[1]),this._setAxisUniforms(i,`u_x0`,e.x0Meta,e.xAxis),this._setAxisUniforms(i,`u_x1`,e.x1Meta,e.xAxis),this._setAxisUniforms(i,`u_y0`,e.y0Meta,e.yAxis),this._setAxisUniforms(i,`u_y1`,e.y1Meta,e.yAxis),r.uniform2f(a(`u_res`),this.canvas.width,this.canvas.height),r.uniform1f(a(`u_width`),(e.trace.style.width??1.5)*this.dpr),r.uniform1f(a(`u_animationProgress`),e._transitionScale??1);let[o,s,c,l]=e.color;r.uniform4f(a(`u_color`),o,s,c,l),r.uniform1f(a(`u_opacity`),this._strokeOpacity(e.trace.style)*(e._transitionOpacity??1)),r.uniform1i(a(`u_colorMode`),e.colorMode||0);let u=this._segmentDash(e,i);e.colorMode&&e.lut&&(r.activeTexture(r.TEXTURE0),r.bindTexture(r.TEXTURE_2D,e.lut),r.uniform1i(a(`u_lut`),0)),this._bindVao(e,`segment`,[e.x0Buf._fcId,e.x1Buf._fcId,e.y0Buf._fcId,e.y1Buf._fcId,e.colorMode&&e.cBuf?e.cBuf._fcId:0,e.rgbaBuf?e.rgbaBuf._fcId:0,e.styleBuf?e.styleBuf._fcId:0,u?e._segmentDashOffsetBuf._fcId:0,u?e._segmentDashDirBuf._fcId:0],()=>{this._vaoAttr(P.ax0,e.x0Buf,0,1),this._vaoAttr(P.ax1,e.x1Buf,0,1),this._vaoAttr(P.ay0,e.y0Buf,0,1),this._vaoAttr(P.ay1,e.y1Buf,0,1),e.colorMode&&e.cBuf&&this._vaoAttr(P.a_cval,e.cBuf,0,1),e.rgbaBuf&&this._vaoAttr(P.a_rgba,e.rgbaBuf,0,1,4,!0),e.styleBuf&&this._vaoAttr(P.a_style,e.styleBuf,0,1,4),u&&(this._vaoAttr(P.a_dash0,e._segmentDashOffsetBuf,0,1),this._vaoAttr(P.a_dashDir,e._segmentDashDirBuf,0,1))}),e.cBuf||r.vertexAttrib1f(P.a_cval,0),e.rgbaBuf||r.vertexAttrib4f(P.a_rgba,o,s,c,l),e.styleBuf||r.vertexAttrib4f(P.a_style,1,-1,-1,-1);let d=Math.max(0,Math.min(e.n,Math.ceil(e.n*(e._transitionReveal??1))));r.drawArraysInstanced(r.TRIANGLE_STRIP,0,4,d)}_segmentDash(e,t){let n=this.gl,r=e=>F(n,t,e),i=e.trace.style&&e.trace.style.dash,a=e._segmentCpu;if(!i||!i.length||!a)return n.uniform1i(r(`u_dashCount`),0),!1;let o=e.n,s=e._segmentDashOffsets?.length===o?e._segmentDashOffsets:e._segmentDashOffsets=new Float32Array(o),c=e._segmentDashDirections?.length===o?e._segmentDashDirections:e._segmentDashDirections=new Float32Array(o),l=Array(o),u=Array(o),d=new Float32Array(o),f=new Map,p=(e,t)=>{let n=f.get(e);n?n.push(t):f.set(e,[t])},m=(e,t)=>`${Math.round(e*1e3)},${Math.round(t*1e3)}`,h=this.dpr;for(let t=0;t<o;t++){let n=this._dataPx(e.xAxis,this._decodeValue(a.x0,e.x0Meta,t)),r=this._dataPx(e.xAxis,this._decodeValue(a.x1,e.x1Meta,t)),i=this._dataPx(e.yAxis,this._decodeValue(a.y0,e.y0Meta,t)),o=this._dataPx(e.yAxis,this._decodeValue(a.y1,e.y1Meta,t));l[t]=m(n,i),u[t]=m(r,o),d[t]=Math.hypot(r-n,o-i)*h,p(l[t],t),p(u[t],t)}let g=new Uint8Array(o),_=e=>{let t=e,n=0;for(;;){let e=(f.get(t)||[]).find(e=>!g[e]);if(e===void 0)break;g[e]=1,l[e]===t?(s[e]=n,c[e]=1,t=u[e]):(s[e]=n+d[e],c[e]=-1,t=l[e]),n+=d[e]}};for(let[e,t]of f)t.length===1&&_(e);for(let e=0;e<o;e++)g[e]||_(l[e]);let v=(e,t)=>e?(n.bindBuffer(n.ARRAY_BUFFER,e),n.bufferData(n.ARRAY_BUFFER,t,n.DYNAMIC_DRAW),e):this._upload(t);e._segmentDashOffsetBuf=v(e._segmentDashOffsetBuf,s),e._segmentDashDirBuf=v(e._segmentDashDirBuf,c);let y=new Float32Array(8),b=Math.min(i.length,8),x=0;for(let e=0;e<b;e++)y[e]=Number(i[e])*h,x+=y[e];return n.uniform1i(r(`u_dashCount`),b),n.uniform1fv(r(`u_dashArr`),y),n.uniform1f(r(`u_dashPeriod`),Math.max(x,.001)),!0}_drawMesh(e,t,n){if(e.n<1)return;let r=this.gl,i=this.meshProg;r.useProgram(i);let a=e=>F(r,i,e);r.uniform2f(a(`u_xmap`),t[0],t[1]),r.uniform2f(a(`u_ymap`),n[0],n[1]);for(let t of[`x0`,`x1`,`x2`])this._setAxisUniforms(i,`u_`+t,e[t+`Meta`],e.xAxis);for(let t of[`y0`,`y1`,`y2`])this._setAxisUniforms(i,`u_`+t,e[t+`Meta`],e.yAxis);r.uniform1i(a(`u_colorMode`),e.colorMode||0),r.uniform1f(a(`u_opacity`),this._fillOpacity(e.trace.style)),r.uniform4f(a(`u_color`),e.color[0],e.color[1],e.color[2],e.color[3]);let o=e.meshStroke||[0,0,0,0];r.uniform4f(a(`u_stroke`),o[0],o[1],o[2],o[3]),r.uniform1f(a(`u_strokeWidth`),e.meshStrokeWidth||0),r.uniform1i(a(`u_strokeMode`),+!!e.strokeBuf),r.uniform1f(a(`u_strokeOpacity`),this._strokeOpacity(e.trace.style)),e.colorMode&&e.lut&&(r.activeTexture(r.TEXTURE0),r.bindTexture(r.TEXTURE_2D,e.lut),r.uniform1i(a(`u_lut`),0));let s=[`x0`,`x1`,`x2`,`y0`,`y1`,`y2`].map(t=>e[t+`Buf`]._fcId);s.push(e.cBuf?e.cBuf._fcId:0,e.rgbaBuf?e.rgbaBuf._fcId:0,e.styleBuf?e.styleBuf._fcId:0,e.strokeBuf?e.strokeBuf._fcId:0),this._bindVao(e,`mesh`,s,()=>{for(let t of[`x0`,`x1`,`x2`,`y0`,`y1`,`y2`])this._vaoAttr(P[`a`+t],e[t+`Buf`],0,1);e.cBuf&&this._vaoAttr(P.a_cval,e.cBuf,0,1),e.rgbaBuf&&this._vaoAttr(P.a_rgba,e.rgbaBuf,0,1,4,!0),e.styleBuf&&this._vaoAttr(P.a_style,e.styleBuf,0,1,4),e.strokeBuf&&this._vaoAttr(P.a_stroke,e.strokeBuf,0,1,4,!0)}),e.cBuf||r.vertexAttrib1f(P.a_cval,0),e.rgbaBuf||r.vertexAttrib4f(P.a_rgba,...e.color),e.styleBuf||r.vertexAttrib4f(P.a_style,1,-1,-1,-1),e.strokeBuf||r.vertexAttrib4f(P.a_stroke,...o),r.drawArraysInstanced(r.TRIANGLES,0,3,e.n)}_lineDash(e){let t=this.gl,n=e=>F(t,this.lineProg,e),r=e.trace.style&&e.trace.style.dash;if(!r||!r.length||!e._dashX)return t.uniform1i(n(`u_dashCount`),0),!1;let i=e.n;(!e._lenArr||e._lenArr.length!==i)&&(e._lenArr=new Float32Array(i));let a=e._lenArr,o=this.dpr,s=this._dataPx(e.xAxis,this._decodeValue(e._dashX,e.xMeta,0)),c=this._dataPx(e.yAxis,this._decodeValue(e._dashY,e.yMeta,0)),l=0;a[0]=0;for(let t=1;t<i;t++){let n=this._dataPx(e.xAxis,this._decodeValue(e._dashX,e.xMeta,t)),r=this._dataPx(e.yAxis,this._decodeValue(e._dashY,e.yMeta,t));Number.isFinite(n)&&Number.isFinite(r)&&Number.isFinite(s)&&Number.isFinite(c)&&(l+=Math.hypot(n-s,r-c)*o),a[t]=l,s=n,c=r}e._lenBuf?(t.bindBuffer(t.ARRAY_BUFFER,e._lenBuf),t.bufferData(t.ARRAY_BUFFER,a,t.DYNAMIC_DRAW)):e._lenBuf=this._upload(a);let u=new Float32Array(8),d=0,f=Math.min(r.length,8);for(let e=0;e<f;e++)u[e]=r[e]*o,d+=u[e];return t.uniform1i(n(`u_dashCount`),f),t.uniform1fv(n(`u_dashArr`),u),t.uniform1f(n(`u_dashPeriod`),Math.max(d,.001)),!0}_drawArea(e,t,n,r){if(e.n<2)return;let i=this.gl,a=this.areaProg;i.useProgram(a);let o=e=>F(i,a,e);i.uniform2f(o(`u_xmap`),t[0],t[1]),i.uniform2f(o(`u_ymap`),n[0],n[1]),i.uniform2f(o(`u_bmap`),r[0],r[1]),this._setAxisUniforms(a,`u_x`,e.xMeta,e.xAxis),this._setAxisUniforms(a,`u_y`,e.yMeta,e.yAxis),this._setAxisUniforms(a,`u_b`,e.baseMeta,e.yAxis);let s=Math.max(0,Math.min(1,e._transitionReveal??1));i.uniform1f(o(`u_revealProgress`),s),i.uniform1f(o(`u_revealSegments`),e.n-1);let[c,l,u,d]=e.color;i.uniform4f(o(`u_color`),c,l,u,d*this._fillOpacity(e.trace.style,.35)*(e._transitionOpacity??1)),i.uniform2f(o(`u_res`),this.canvas.width,this.canvas.height),this._setGradientUniforms(a,e.grad),this._bindVao(e,`area`,[e.xBuf._fcId,e.yBuf._fcId,e.baseBuf._fcId],()=>{this._vaoAttr(P.ax0,e.xBuf,0,1),this._vaoAttr(P.ax1,e.xBuf,4,1),this._vaoAttr(P.ay0,e.yBuf,0,1),this._vaoAttr(P.ay1,e.yBuf,4,1),this._vaoAttr(P.ab0,e.baseBuf,0,1),this._vaoAttr(P.ab1,e.baseBuf,4,1)});let f=Math.max(0,Math.min(e.n-1,Math.ceil((e.n-1)*s)));i.drawArraysInstanced(i.TRIANGLE_STRIP,0,4,f)}_drawRects(e,t,n,r,i,a=[0,0,0,0]){if(!e.n)return;let o=this.gl,s=this.rectProg;o.useProgram(s);let c=e=>F(o,s,e);o.uniform2f(c(`u_x0map`),t[0],t[1]),o.uniform2f(c(`u_x1map`),n[0],n[1]),o.uniform2f(c(`u_y0map`),r[0],r[1]),o.uniform2f(c(`u_y1map`),i[0],i[1]),this._setAxisUniforms(s,`u_x0`,e.x0Meta,e.xAxis),this._setAxisUniforms(s,`u_x1`,e.x1Meta,e.xAxis),this._setAxisUniforms(s,`u_y0`,e.y0Meta,e.yAxis),this._setAxisUniforms(s,`u_y1`,e.y1Meta,e.yAxis),o.uniform1i(c(`u_xmode`),this._axisMode(e.xAxis)),o.uniform1i(c(`u_ymode`),this._axisMode(e.yAxis)),o.uniform4f(c(`u_edgePad`),a[0],a[1],a[2],a[3]);let[l,u,d,f]=e.color;o.uniform4f(c(`u_color`),l,u,d,f),o.uniform1f(c(`u_opacity`),this._fillOpacity(e.trace.style)*(e._transitionOpacity??1)),o.uniform1i(c(`u_colorMode`),e.colorMode||0),this._setRectStyleUniforms(s,e);let p=!!e.cBuf,m=!!e.rgbaBuf,h=!!e.styleBuf,g=!!e.strokeBuf,_=!!e.radiusBuf;p&&(o.activeTexture(o.TEXTURE0),o.bindTexture(o.TEXTURE_2D,e.lut),o.uniform1i(c(`u_lut`),0)),this._bindVao(e,`rects`,[e.x0Buf._fcId,e.x1Buf._fcId,e.y0Buf._fcId,e.y1Buf._fcId,p?e.cBuf._fcId:0,m?e.rgbaBuf._fcId:0,h?e.styleBuf._fcId:0,g?e.strokeBuf._fcId:0,_?e.radiusBuf._fcId:0],()=>{this._vaoAttr(P.ax0,e.x0Buf,0,1),this._vaoAttr(P.ax1,e.x1Buf,0,1),this._vaoAttr(P.ay0,e.y0Buf,0,1),this._vaoAttr(P.ay1,e.y1Buf,0,1),p&&this._vaoAttr(P.a_cval,e.cBuf,0,1),m&&this._vaoAttr(P.a_rgba,e.rgbaBuf,0,1,4,!0),h&&this._vaoAttr(P.a_style,e.styleBuf,0,1,4),g&&this._vaoAttr(P.a_stroke,e.strokeBuf,0,1,4,!0),_&&this._vaoAttr(P.a_radius,e.radiusBuf,0,1,2)}),p||o.vertexAttrib1f(P.a_cval,0),m||o.vertexAttrib4f(P.a_rgba,l,u,d,f),h||o.vertexAttrib4f(P.a_style,1,-1,-1,-1),g||o.vertexAttrib4f(P.a_stroke,...e.strokeColor||e.color),_||o.vertexAttrib2f(P.a_radius,-1,-1),o.drawArraysInstanced(o.TRIANGLE_STRIP,0,4,e.n)}_drawBars(e,t,n,r,i,a=0){if(!e.n)return;let o=this.gl,s=this.barProg;o.useProgram(s);let c=e=>F(o,s,e);o.uniform2f(c(`u_pmap`),t[0],t[1]),o.uniform2f(c(`u_v1map`),n[0],n[1]),o.uniform2f(c(`u_v0map`),r?r[0]:1,r?r[1]:0);let l=e.orientation===1?e.yAxis:e.xAxis,u=e.orientation===1?e.xAxis:e.yAxis;this._setAxisUniforms(s,`u_p`,e.posMeta,l),this._setAxisUniforms(s,`u_v1`,e.value1Meta,u),this._setAxisUniforms(s,`u_v0`,e.value0Meta,u),o.uniform1i(c(`u_pmode`),this._axisMode(l)),o.uniform1i(c(`u_vmode`),this._axisMode(u)),o.uniform1f(c(`u_width`),e.width),o.uniform1i(c(`u_orientation`),e.orientation),o.uniform1i(c(`u_v0Mode`),e.value0Mode),o.uniform1f(c(`u_v0Const`),i??0),o.uniform1f(c(`u_v0EdgePad`),a),o.uniform1f(c(`u_animationProgress`),e._transitionGrow??1);let d=!!(e._transitionPrevPosBuf&&e._transitionPrevValue1Buf&&e._transitionPrevValue0Buf);o.uniform1i(c(`u_transitionActive`),+!!d),o.uniform1f(c(`u_transitionProgress`),e._transitionPositionProgress??1),o.uniform1f(c(`u_prevWidth`),e._transitionPrevWidth??e.width);let[f,p,m,h]=e.color;o.uniform4f(c(`u_color`),f,p,m,h),o.uniform1f(c(`u_opacity`),this._fillOpacity(e.trace.style)*(e._transitionOpacity??1)),o.uniform1i(c(`u_colorMode`),e.colorMode||0),this._setRectStyleUniforms(s,e);let g=e.value0Mode===1&&e.value0Buf,_=!!e.cBuf,v=!!e.rgbaBuf,y=!!e.styleBuf,b=!!e.strokeBuf,x=!!e.radiusBuf;_&&(o.activeTexture(o.TEXTURE0),o.bindTexture(o.TEXTURE_2D,e.lut),o.uniform1i(c(`u_lut`),0)),this._bindVao(e,`bars`,[e.posBuf._fcId,e.value1Buf._fcId,g?e.value0Buf._fcId:0,_?e.cBuf._fcId:0,d?e._transitionPrevPosBuf._fcId:0,d?e._transitionPrevValue1Buf._fcId:0,d?e._transitionPrevValue0Buf._fcId:0,v?e.rgbaBuf._fcId:0,y?e.styleBuf._fcId:0,b?e.strokeBuf._fcId:0,x?e.radiusBuf._fcId:0],()=>{this._vaoAttr(P.a_pos,e.posBuf,0,1),this._vaoAttr(P.a_v1,e.value1Buf,0,1),g&&this._vaoAttr(P.a_v0,e.value0Buf,0,1),_&&this._vaoAttr(P.a_cval,e.cBuf,0,1),d&&(this._vaoAttr(P.a_prevx,e._transitionPrevPosBuf,0,1),this._vaoAttr(P.a_prevy,e._transitionPrevValue1Buf,0,1),this._vaoAttr(P.a_prevx1,e._transitionPrevValue0Buf,0,1)),v&&this._vaoAttr(P.a_rgba,e.rgbaBuf,0,1,4,!0),y&&this._vaoAttr(P.a_style,e.styleBuf,0,1,4),b&&this._vaoAttr(P.a_stroke,e.strokeBuf,0,1,4,!0),x&&this._vaoAttr(P.a_radius,e.radiusBuf,0,1,2)}),g||o.vertexAttrib1f(P.a_v0,0),_||o.vertexAttrib1f(P.a_cval,0),v||o.vertexAttrib4f(P.a_rgba,f,p,m,h),y||o.vertexAttrib4f(P.a_style,1,-1,-1,-1),b||o.vertexAttrib4f(P.a_stroke,...e.strokeColor||e.color),x||o.vertexAttrib2f(P.a_radius,-1,-1),o.drawArraysInstanced(o.TRIANGLE_STRIP,0,4,e.n)}_dataPxX(e){return this._dataPx(`x`,e)}_dataPxY(e){return this._dataPx(`y`,e)}_styleNumber(e,t,n){if(!e||typeof e!=`object`)return n;let r=Number(e[t]);return Number.isFinite(r)?r:n}_axisStyleNumber(e,t,n){return this._styleNumber(e&&e.style,t,n)}_axisStylePaint(e,t,n){let r=e&&typeof e.style==`object`?e.style:null;return C(this.root,r&&r[t],n)}_axisStyleValue(e,t){let n=e&&typeof e.style==`object`?e.style:null;return n&&Object.prototype.hasOwnProperty.call(n,t)?n[t]:void 0}_axisGridDash(e){let t=String(this._axisStyleValue(e,`grid_dash`)||`solid`);return t===`dashed`?[6,4]:t===`dotted`?[1,3]:t===`dashdot`?[6,3,1,3]:[]}_axisTickLabelStrategy(e){let t=String(e&&e.tick_label_strategy||`auto`).replace(/-/g,`_`);return[`auto`,`hide`,`rotate`,`stagger`,`none`,`off`].includes(t)?t:`auto`}_axisTickLabelAnchor(e){let t=e&&e.tick_label_anchor!==void 0?e.tick_label_anchor:this._axisStyleValue(e,`tick_label_anchor`);if(t==null)return null;let n=String(t).toLowerCase();return n===`start`||n===`left`?`start`:n===`end`||n===`right`?`end`:n===`center`||n===`middle`?`center`:null}_axisTickLabelAngle(e){let t=Number(e?e.tick_label_angle:void 0);return Number.isFinite(t)?t:null}_axisTickLabelMinGap(e,t){let n=Number(e?e.tick_label_min_gap:void 0);return Number.isFinite(n)&&n>=0?n:t===`x`?8:4}_estimateTickLabel(e,t){let n=String(e||``);return{w:Math.max(t*.7,n.length*t*.62),h:t*1.2}}_tickLabelExtent(e,t,n){let r=this._estimateTickLabel(e.text,n),i=Math.abs(Number(e.angle||0))*Math.PI/180;return t===`y`?Math.abs(Math.sin(i))*r.w+Math.abs(Math.cos(i))*r.h:Math.abs(Math.cos(i))*r.w+Math.abs(Math.sin(i))*r.h}_tickLabelsCollide(e,t,n,r,i=`center`){let a=new Map;for(let t of e){let e=Number(t.row||0);a.has(e)||a.set(e,[]),a.get(e).push(t)}for(let e of a.values()){if(e.sort((e,t)=>e.pos-t.pos),t===`x`&&i!==`center`){for(let t=1;t<e.length;t++){let a=e[t-1],o=e[t],s=o.pos-a.pos,c=Math.abs(Number(o.angle||0))*Math.PI/180;if(c){if(s*Math.sin(c)<n*1.2+r)return!0}else{let e=i===`end`?o:a;if(s<this._estimateTickLabel(e.text,n).w+r)return!0}}continue}let a=-1/0;for(let i of e){let e=this._tickLabelExtent(i,t,n),o=i.pos-e/2,s=i.pos+e/2;if(o<a+r)return!0;a=s}}return!1}_downsampleTickLabels(e,t,n,r,i=`center`){if(e.length<=1)return e;for(let a=2;a<=e.length;a++){let o=e.filter((e,t)=>t%a===0);if(!this._tickLabelsCollide(o,t,n,r,i))return o}return e.slice(0,1)}_layoutTickLabels(e,t,n){let r=this._axisTickLabelStrategy(e);if(r===`none`||r===`off`)return[];if(n.length<=1){let t=this._axisTickLabelAngle(e);return n.map(e=>({...e,angle:t===null?0:t,row:0}))}let i=Math.max(8,this._axisStyleNumber(e,`tick_label_size`,this._axisStyleNumber(e,`tick_size`,11))),a=this._axisTickLabelMinGap(e,t),o=t===`x`?this._axisTickLabelAnchor(e)??`center`:`center`,s=this._axisTickLabelAngle(e),c=s===null?0:s,l=n.map(e=>({...e,angle:c,row:0})),u=r;if(u===`auto`){if(!this._tickLabelsCollide(l,t,i,a,o))return l;u=t===`x`&&e.kind===`category`&&n.length<=16?`rotate`:t===`x`&&n.length<=24?`stagger`:`hide`}let d=l;if(u===`rotate`&&t===`x`){let t=s===null?e.side===`top`?35:-35:s;d=n.map(e=>({...e,angle:t,row:0}))}else u===`stagger`&&t===`x`&&(d=n.map((e,t)=>({...e,angle:c,row:t%2})));return this._tickLabelsCollide(d,t,i,a,o)&&(d=this._downsampleTickLabels(d,t,i,a,o)),d}_xTickLabelTransform(e,t){let n=Number(t||0),r=e&&e.side===`top`?`top`:`bottom`,i=this._axisTickLabelAnchor(e);if(i){let e=i===`end`?`-100%`:i===`start`?`0%`:`-50%`,t=i===`end`?`right`:i===`start`?`left`:`center`;return{transform:`translateX(${e}) rotate(${n}deg)`,origin:`${t} ${r===`top`?`bottom`:`top`}`}}if(n===0)return{transform:`translateX(-50%)`,origin:r===`top`?`bottom center`:`top center`};let a=r===`bottom`&&n<0||r===`top`&&n>0,o=r===`top`?`bottom`:`top`;return{transform:`${a?`translateX(-100%) `:``}rotate(${n}deg)`,origin:`${o} ${a?`right`:`left`}`}}_axisLabelCss(e,t,n){let r=e&&e.label_position,i=r!=null,a=e&&Number.isFinite(Number(e.label_offset)),o=e&&Number.isFinite(Number(e.label_angle));if(!i&&!a&&!o)return{css:n,style:null};if(r&&typeof r==`object`&&!Array.isArray(r))return{css:`font-weight:500;white-space:nowrap;`,style:r};let s=this.plot,c=String(i?r:`center`).replace(/-/g,`_`),l=c.startsWith(`inside_`),u=l?c.slice(7):c,d=a?Number(e.label_offset):0,f=e&&e.side,p=u===`start`?0:u===`end`?1:.5;if(t===`x`){let t=s.x+s.w*p,n=f===`top`?s.y-34:s.y+s.h+24,r=f===`top`?s.y+12:s.y+s.h-12;return{css:`left:${t}px;top:${(l?r:n)+(f===`top`?l?d:-d:l?-d:d)}px;transform:translateX(${u===`start`?0:u===`end`?-100:-50}%) rotate(${o?Number(e.label_angle):0}deg);transform-origin:center;font-weight:500;white-space:nowrap;`,style:null}}let m=f===`right`?s.x+s.w+40:10,h=f===`right`?s.x+s.w-12:s.x+12;return{css:`left:${(l?h:m)+(f===`right`?l?-d:d:l?d:-d)}px;top:${s.y+s.h*(1-p)}px;transform:translate(-50%,-50%) rotate(${o?Number(e.label_angle):f===`right`?90:-90}deg);transform-origin:center;font-weight:500;white-space:nowrap;`,style:null}}_drawChrome(){let e=this.spec,t=this.dpr,n=this.chrome.getContext(`2d`);n.setTransform(t,0,0,t,0,0),n.clearRect(0,0,this.size.w,this.size.h);let r=this._now(),i=this._viewAnim?80:0,a=i===0||this._lastLabelDraw===null||r-this._lastLabelDraw>=i;a&&(this.labels.textContent=``,this._lastLabelDraw=r);let o=this.plot;this.theme.bg&&(n.fillStyle=b(this.theme.bg),n.fillRect(o.x,o.y,o.w,o.h));let s=this._axis(`x`),c=this._axis(`y`),l=Object.values(this.axes).filter(e=>e&&e.id!==`x`&&String(e.id||``).startsWith(`x`)),u=Object.values(this.axes).filter(e=>e&&e.id!==`y`&&String(e.id||``).startsWith(`y`)),d=this._axisTickLabelStrategy(s)===`none`,f=this._axisTickLabelStrategy(c)===`none`,p=this._axisTicks(`x`,this._axisTickTarget(`x`,Math.max(3,o.w/(s.kind===`time`?90:80)))),m=this._axisTicks(`y`,this._axisTickTarget(`y`,Math.max(3,o.h/45))),h=e=>Math.min(o.x+o.w-.5,Math.max(o.x+.5,Math.round(e)+.5)),g=e=>Math.min(o.y+o.h-.5,Math.max(o.y+.5,Math.round(e)+.5));n.strokeStyle=this._axisStylePaint(s,`grid_color`,this.theme.grid),n.lineWidth=Math.max(.5,this._axisStyleNumber(s,`grid_width`,1)),n.globalAlpha=this._axisStyleNumber(s,`grid_opacity`,1),n.setLineDash(this._axisGridDash(s)),n.beginPath();for(let e of d?[]:p.ticks){let t=this._dataPx(`x`,e);if(!Number.isFinite(t))continue;let r=h(t);n.moveTo(r,o.y),n.lineTo(r,o.y+o.h)}n.stroke(),n.strokeStyle=this._axisStylePaint(c,`grid_color`,this.theme.grid),n.lineWidth=Math.max(.5,this._axisStyleNumber(c,`grid_width`,1)),n.globalAlpha=this._axisStyleNumber(c,`grid_opacity`,1),n.setLineDash(this._axisGridDash(c)),n.beginPath();for(let e of f?[]:m.ticks){let t=this._dataPx(`y`,e);if(!Number.isFinite(t))continue;let r=g(t);n.moveTo(o.x,r),n.lineTo(o.x+o.w,r)}n.stroke(),n.globalAlpha=1,n.setLineDash([]);let _=this.overlay.getContext(`2d`);if(_.setTransform(t,0,0,t,0,0),_.clearRect(0,0,this.size.w,this.size.h),this._drawAnnotationShapes(_),a){let t=(e,t,n,r,i,a=`axis_color`)=>{let o=document.createElement(`div`);o.style.cssText=`position:absolute;left:${t}px;top:${n}px;width:${r}px;height:${i}px;background:${this._axisStylePaint(e,a,this.theme.axis)};pointer-events:none;`,this.labels.appendChild(o)},n=Array.isArray(e.frame_sides)?e.frame_sides:[s.side||`bottom`,c.side||`left`];if(!f){let e=Math.max(1,this._axisStyleNumber(c,`axis_width`,1));n.includes(`left`)&&t(c,o.x,o.y,e,o.h),n.includes(`right`)&&t(c,o.x+o.w-e,o.y,e,o.h)}if(!d){let e=Math.max(1,this._axisStyleNumber(s,`axis_width`,1));n.includes(`top`)&&t(s,o.x,o.y,o.w,e),n.includes(`bottom`)&&t(s,o.x,o.y+o.h-e,o.w,e)}for(let e of l){if(this._axisTickLabelStrategy(e)===`none`)continue;let n=Math.max(1,this._axisStyleNumber(e,`axis_width`,1)),r=e.side===`top`?o.y:o.y+o.h-n;t(e,o.x,r,o.w,n)}for(let e of u){if(this._axisTickLabelStrategy(e)===`none`)continue;let n=Math.max(1,this._axisStyleNumber(e,`axis_width`,1));t(e,e.side===`left`?o.x:o.x+o.w-n,o.y,n,o.h)}let r=e=>{let t=Math.max(0,this._axisStyleNumber(e,`tick_length`,0)),n=Math.max(.5,this._axisStyleNumber(e,`tick_width`,1)),r=String(this._axisStyleValue(e,`tick_direction`)||`out`);return r===`in`?{inward:t,outward:0,width:n}:r===`inout`?{inward:t/2,outward:t/2,width:n}:{inward:0,outward:t,width:n}};if(!d){let e=r(s),n=s.side||`bottom`,i=n===`top`?o.y:o.y+o.h;for(let r of p.ticks){let a=this._dataPx(`x`,r);if(!Number.isFinite(a)||a<o.x-1||a>o.x+o.w+1)continue;let c=n===`top`?i-e.outward:i-e.inward;t(s,a-e.width/2,c,e.width,e.inward+e.outward,`tick_color`)}}if(!f){let e=r(c),n=c.side||`left`,i=n===`right`?o.x+o.w:o.x;for(let r of m.ticks){let a=this._dataPx(`y`,r);!Number.isFinite(a)||a<o.y-1||a>o.y+o.h+1||t(c,n===`right`?i-e.inward:i-e.outward,a-e.width/2,e.inward+e.outward,e.width,`tick_color`)}}for(let e of l){if(this._axisTickLabelStrategy(e)===`none`)continue;let n=this._axisTicks(e.id,this._axisTickTarget(e.id,Math.max(3,o.w/(e.kind===`time`?90:80)))),i=r(e),a=e.side||`bottom`,s=a===`top`?o.y:o.y+o.h;for(let r of n.ticks){let n=this._dataPx(e.id,r);if(!Number.isFinite(n)||n<o.x-1||n>o.x+o.w+1)continue;let c=a===`top`?s-i.outward:s-i.inward;t(e,n-i.width/2,c,i.width,i.inward+i.outward,`tick_color`)}}for(let e of u){if(this._axisTickLabelStrategy(e)===`none`)continue;let n=this._axisTicks(e.id,this._axisTickTarget(e.id,Math.max(3,o.h/45))),i=r(e),a=e.side||`right`,s=a===`right`?o.x+o.w:o.x;for(let r of n.ticks){let n=this._dataPx(e.id,r);!Number.isFinite(n)||n<o.y-1||n>o.y+o.h+1||t(e,a===`right`?s-i.inward:s-i.outward,n-i.width/2,i.inward+i.outward,i.width,`tick_color`)}}}let v=(e,t,n,r=`tick`,i=null)=>{if(!a)return;let o=document.createElement(`div`);o.textContent=e,o.dataset.xyLabelKind=r,o.dataset.xyAxis=n&&n.id!==void 0?String(n.id):``,o.dataset.xyAxisSide=n&&n.side?String(n.side):``;let s=r===`label`?`label_color`:this._axisStyleValue(n,`tick_label_color`)===void 0?`tick_color`:`tick_label_color`,c=r===`label`?`label_size`:this._axisStyleValue(n,`tick_label_size`)===void 0?`tick_size`:`tick_label_size`,l=``;this._axisStyleValue(n,s)!==void 0&&(l=`color:${this._axisStylePaint(n,s,this.theme.label)};`);let u=``;this._axisStyleValue(n,c)!==void 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i=this._dataPx(e.id,r);i<o.x-1||i>o.x+o.w+1||n.push({pos:i,text:this._axisTickText(e,r,t.step)})}for(let t of this._layoutTickLabels(e,`x`,n)){let n=this._axisStyleNumber(e,`tick_label_size`,this._axisStyleNumber(e,`tick_size`,11)),r=Number(t.row||0)*(Math.max(8,n)+4),i=e.side===`top`?o.y-18-r:o.y+o.h+6+r,a=this._xTickLabelTransform(e,t.angle);v(t.text,`left:${t.pos}px;top:${i}px;transform:${a.transform};transform-origin:${a.origin};`,e)}if(e.label&&this._axisTickLabelStrategy(e)!==`none`){let t=e.side===`top`?o.y-34:o.y+o.h+24,n=`left:${o.x+o.w/2}px;top:${t}px;transform:translateX(-50%);font-weight:500;`,r=this._axisLabelCss(e,`x`,n);v(e.label,r.css,e,`label`,r.style)}}let S=[];for(let e of m.labels||m.ticks){let t=this._dataPx(`y`,e);if(t<o.y-1||t>o.y+o.h+1)continue;let n=this._axisTickText(c,e,m.step);S.push({pos:t,text:n})}let C=(e,t,n)=>{let r=t?o.x+o.w+8:o.x-8,i=this._axisTickLabelAnchor(e)??(t?`start`:`end`),a=i===`end`?`-100%`:i===`start`?`0%`:`-50%`,s=i===`end`?`right`:i===`start`?`left`:`center`;return`left:${r}px;top:${n.pos}px;transform:translate(${a},-50%) rotate(${Number(n.angle||0)}deg);transform-origin:${s} center;`};for(let e of this._layoutTickLabels(c,`y`,S))v(e.text,C(c,c.side===`right`,e),c);for(let e of u){let t=this._axisTicks(e.id,this._axisTickTarget(e.id,Math.max(3,o.h/45))),n=[];for(let r of t.labels||t.ticks){let i=this._dataPx(e.id,r);if(i<o.y-1||i>o.y+o.h+1)continue;let a=this._axisTickText(e,r,t.step);n.push({pos:i,text:a})}for(let t of this._layoutTickLabels(e,`y`,n))v(t.text,C(e,e.side!==`left`,t),e);if(e.label&&this._axisTickLabelStrategy(e)!==`none`){let t=e.side===`left`?`left:10px;top:${o.y+o.h/2}px;transform:rotate(-90deg) translateX(50%);transform-origin:left;font-weight:500;`:`left:${o.x+o.w+40}px;top:${o.y+o.h/2}px;transform:rotate(90deg) translateX(-50%);transform-origin:left;font-weight:500;`,n=this._axisLabelCss(e,`y`,t);v(e.label,n.css,e,`label`,n.style)}}if(e.x_axis.label&&!d){let t=s.side===`top`?o.y-34:o.y+o.h+24,n=`left:${o.x+o.w/2}px;top:${t}px;transform:translateX(-50%);font-weight:500;`,r=this._axisLabelCss(s,`x`,n);v(e.x_axis.label,r.css,s,`label`,r.style)}if(e.y_axis.label&&!f){let t=c.side===`right`?`left:${o.x+o.w+40}px;top:${o.y+o.h/2}px;transform:rotate(90deg) translateX(-50%);transform-origin:left;font-weight:500;`:`left:10px;top:${o.y+o.h/2}px;transform:rotate(-90deg) translateX(50%);transform-origin:left;font-weight:500;`,n=this._axisLabelCss(c,`y`,t);v(e.y_axis.label,n.css,c,`label`,n.style)}this._drawAnnotationLabels(a)}_interactionTransitionActive(){let e=e=>e!=null;return!!this._viewAnim||this.gpuTraces.some(t=>e(t._densityFadeStart)||e(t._densitySwitchFadeStart)||e(t._drillFadeStart)||e(t._drillExitFadeStart)||!!t._densityNormAnim)}_renderPick(){let e=this.gl;(this._pickW!==this.canvas.width||this._pickH!==this.canvas.height)&&this._allocPickTex(),e.bindFramebuffer(e.FRAMEBUFFER,this.pickFbo),e.viewport(0,0,this.canvas.width,this.canvas.height),e.disable(e.BLEND),e.clearColor(0,0,0,0),e.clear(e.COLOR_BUFFER_BIT);let{x0:t,x1:n,y0:r,y1:i}=this.view,a=this.pickProg;e.useProgram(a);let o=t=>F(e,a,t);e.uniform1f(o(`u_dpr`),this.dpr);let s=1;for(let t of this.gpuTraces){let n=t.tier===`density`?t.drill&&!t._drillDying&&this._viewInside(t.drill.win)?t.drill:null:J(t.trace.kind).pointPick?t:null;if(!n||!n.n||s+n.n>2147483647){t.pickBase=-1,t.pickCount=0;continue}let[r,i]=this._axisRange(n.xAxis||t.xAxis),[c,l]=this._axisRange(n.yAxis||t.yAxis),u=this._map(n.xMeta,r,i,n.xAxis||t.xAxis),d=this._map(n.yMeta,c,l,n.yAxis||t.yAxis);e.uniform2f(o(`u_xmap`),u[0],u[1]),e.uniform2f(o(`u_ymap`),d[0],d[1]),this._setAxisUniforms(a,`u_x`,n.xMeta,n.xAxis||t.xAxis),this._setAxisUniforms(a,`u_y`,n.yMeta,n.yAxis||t.yAxis),e.uniform1f(o(`u_size`),n.size),e.uniform1i(o(`u_sizeMode`),n.sizeMode),e.uniform2f(o(`u_sizeRange`),n.sizeRange[0],n.sizeRange[1]);let f=!!(n._transitionPrevXBuf&&n._transitionPrevYBuf);e.uniform1i(o(`u_transitionActive`),+!!f),e.uniform1f(o(`u_transitionProgress`),n._transitionPositionProgress??1),e.uniform1i(o(`u_pick_base`),s),t.pickBase=s,t.pickCount=n.n;let p=n.sizeMode===1&&n.sBuf;this._bindVao(n,`pick`,[n.xBuf._fcId,n.yBuf._fcId,p?n.sBuf._fcId:0,f?n._transitionPrevXBuf._fcId:0,f?n._transitionPrevYBuf._fcId:0],()=>{this._vaoAttr(P.ax,n.xBuf,0,0),this._vaoAttr(P.ay,n.yBuf,0,0),p&&this._vaoAttr(P.a_sval,n.sBuf,0,0),f&&(this._vaoAttr(P.a_prevx,n._transitionPrevXBuf,0,0),this._vaoAttr(P.a_prevy,n._transitionPrevYBuf,0,0))}),p||e.vertexAttrib1f(P.a_sval,.5),e.drawArrays(e.POINTS,0,n.n),s+=n.n}e.enable(e.BLEND),e.bindFramebuffer(e.FRAMEBUFFER,null),this._pickDirty=!1}_pickAt(e,t){if(!this._pickable||this._glLost||!this.gl||this.gl.isContextLost())return null;if(this._pickDirty)try{this._renderPick()}catch(e){if(!this.gl||this.gl.isContextLost())return null;throw e}let n=this.gl,r=Math.round(e*this.dpr),i=Math.round((this.plot.h-t)*this.dpr);if(r<0||i<0||r>=this.canvas.width||i>=this.canvas.height)return null;let a=new Uint8Array(4);n.bindFramebuffer(n.FRAMEBUFFER,this.pickFbo),n.readPixels(r,i,1,1,n.RGBA,n.UNSIGNED_BYTE,a),n.bindFramebuffer(n.FRAMEBUFFER,null);let o=a[0]+a[1]*256+a[2]*65536+a[3]*16777216;if(o===0)return null;let s=this.gpuTraces.find(e=>e.pickBase>0&&o>=e.pickBase&&o<e.pickBase+e.pickCount);return s?{trace:s.trace.id,index:o-s.pickBase,g:s}:null}_decodeValue(e,t,n){return!e||!t||n<0||n>=e.length?NaN:e[n]/(t.scale||1)+t.offset}_dataFromCanvas(e,t,n=`x`,r=`y`){let[i,a]=this._axisRange(n),[o,s]=this._axisRange(r),c=this._axis(n),l=this._axis(r),u=this._axisCoord(c,i),d=this._axisCoord(c,a),f=this._axisCoord(l,o),p=this._axisCoord(l,s);return[u,d,f,p].every(Number.isFinite)?[this._axisValue(c,u+e/this.plot.w*(d-u)),this._axisValue(l,p-t/this.plot.h*(p-f))]:[NaN,NaN]}_nearestCpuIndex(e,t){let n=e&&e._cpu;if(!n||!n.x||!n.x.length)return-1;let r=n.xMeta||e.xMeta,i=this._axis(e.xAxis),a=this._axisCoord(i,t),o=-1,s=1/0,c=Math.min(n.x.length,e.n||n.x.length);for(let t=0;t<c;t++){let c=e._transitionPrevXValues,l=e._transitionPositionProgress,u=(c&&Number.isFinite(l)?c[t]+(n.x[t]-c[t])*l:n.x[t])/(r.scale||1)+r.offset,d=Math.abs(this._axisCoord(i,u)-a);d<s&&(s=d,o=t)}return o}_hoverAt(e,t){let n=null;for(let r of this.gpuTraces){if(r.tier===`density`)continue;let[i,a]=this._dataFromCanvas(e,t,r.xAxis,r.yAxis);if(!Number.isFinite(i)||!Number.isFinite(a))continue;if(r.heatmap&&r._cpuHeatmap){let e=this._heatmapHover(r,i,a);if(e)return e;continue}if(r.trace.bar&&r._cpu){let e=this._barHover(r,i,a);if(e)return e;continue}if(r._cpuRect){let e=this._rectHover(r,i,a);if(e)return e;continue}if(!r._cpu||!r._cpu.x||!r._cpu.y)continue;let o=this._nearestCpuIndex(r,i);if(o<0)continue;let s=r._transitionPositionProgress,c=r._transitionPrevXValues&&Number.isFinite(s)?r._transitionPrevXValues[o]+(r._cpu.x[o]-r._transitionPrevXValues[o])*s:r._cpu.x[o],l=r._transitionPrevYValues&&Number.isFinite(s)?r._transitionPrevYValues[o]+(r._cpu.y[o]-r._transitionPrevYValues[o])*s:r._cpu.y[o],u=c/(r._cpu.xMeta.scale||1)+r._cpu.xMeta.offset,d=l/(r._cpu.yMeta.scale||1)+r._cpu.yMeta.offset,f=this._dataPx(r.xAxis,u)-this.plot.x,p=this._dataPx(r.yAxis,d)-this.plot.y,m=Math.hypot(f-e,p-t);m<=12&&(!n||m<n.dist)&&(n={trace:r.trace.id,index:o,g:r,dist:m,synthetic:!0})}return n}_barHover(e,t,n){let r=e._cpu,i=e.orientation===1,a=Math.min(r.x.length,r.y.length,e.n||r.x.length);for(let o=0;o<a;o++){let a=this._decodeValue(r.x,r.xMeta,o),s=this._decodeValue(r.y,r.yMeta,o),c=e.value0Mode===1&&r.value0?this._decodeValue(r.value0,e.value0Meta,o):e.value0Const,l=Math.min(c??0,i?a:s),u=Math.max(c??0,i?a:s);if(i){if(t>=l&&t<=u&&Math.abs(n-s)<=e.width/2)return{trace:e.trace.id,index:o,g:e,synthetic:!0}}else if(Math.abs(t-a)<=e.width/2&&n>=l&&n<=u)return{trace:e.trace.id,index:o,g:e,synthetic:!0}}return null}_rectHover(e,t,n){let r=e._cpuRect,i=Math.min(r.x0.length,r.x1.length,r.y0.length,r.y1.length,e.n||r.x0.length);for(let a=0;a<i;a++){let i=this._decodeValue(r.x0,r.x0Meta,a),o=this._decodeValue(r.x1,r.x1Meta,a),s=this._decodeValue(r.y0,r.y0Meta,a),c=this._decodeValue(r.y1,r.y1Meta,a);if(t>=Math.min(i,o)&&t<=Math.max(i,o)&&n>=Math.min(s,c)&&n<=Math.max(s,c))return{trace:e.trace.id,index:a,g:e,synthetic:!0}}return null}_heatmapHover(e,t,n){let r=e.heatmap;if(!r||!e._cpuHeatmap)return null;let[i,a]=r.xRange,[o,s]=r.yRange;if(t<i||t>a||n<o||n>s)return null;let[c,l]=this._axisRange(e.xAxis)??[this.view.x0,this.view.x1],[u,d]=this._axisRange(e.yAxis)??[this.view.y0,this.view.y1],f=(c??this.view.x0)>(l??this.view.x1)?a-t:t-i,p=(u??this.view.y0)>(d??this.view.y1)?s-n:n-o,m=Math.min(r.w-1,Math.max(0,Math.floor(f/(a-i)*r.w))),h=Math.min(r.h-1,Math.max(0,Math.floor(p/(s-o)*r.h)));return{trace:e.trace.id,index:h*r.w+m,g:e,heatmap:{row:h,col:m},synthetic:!0}}_drawKeepPick(){this.draw(!0)}_hover(e){if(this._a11yKeyboardReadout=null,this._interactionTransitionActive()){let e=this._hoverId!==-1;this._hoverId=-1,this._hoverTarget=null,this._lastHoverXY=null,this._pickSeq=(this._pickSeq||0)+1,this._hideTooltip(),e&&this.draw();return}let t=this.canvas.getBoundingClientRect(),n=e.clientX-t.left,r=e.clientY-t.top,i=this._pickAt(n,r)||this._hoverAt(n,r);if(!i){let e=this._hoverId!==-1;this._hoverId=-1,this._hoverTarget=null,this._lastHoverXY=null,this._pickSeq=(this._pickSeq||0)+1,this._hideTooltip(),e&&this._drawKeepPick();return}let a=i.trace*1e9+i.index;if(this._lastHoverXY={clientX:e.clientX,clientY:e.clientY},a===this._hoverId){this._tooltipAnchor||this._renderTooltip(this._lastRow,e.clientX,e.clientY);return}this._hoverId=a,this._hoverTarget=i,this._showTooltip(i,e.clientX,e.clientY),this._drawKeepPick()}_asF32(e){return e instanceof ArrayBuffer?new Float32Array(e):e.byteOffset%4==0?new Float32Array(e.buffer,e.byteOffset,Math.floor(e.byteLength/4)):new Float32Array(e.buffer.slice(e.byteOffset,e.byteOffset+e.byteLength))}_asU8(e){return e instanceof ArrayBuffer?new Uint8Array(e):new Uint8Array(e.buffer,e.byteOffset,e.byteLength)}_asU32(e){return e instanceof ArrayBuffer?new Uint32Array(e):e.byteOffset%4==0?new Uint32Array(e.buffer,e.byteOffset,Math.floor(e.byteLength/4)):new Uint32Array(e.buffer.slice(e.byteOffset,e.byteOffset+e.byteLength))}_applyTheme(){this.theme=y(this.root),this._themeStale=!this.root.isConnected;for(let e of this.gpuTraces)J(e.trace.kind).refreshColor?.(this,e)}refreshTheme(){this._destroyed||(this._applyTheme(),this.draw())}_healStaleTheme(){return!this._themeStale||!this.root.isConnected?!1:(this._applyTheme(),!0)}destroy(){if(this._destroyed)return;this._destroyed=!0,this._dataAnim&&this._emitAnimationLifecycle?.(`end`,this._dataAnim.phase,{cancelled:!0}),Z.unregister(this),this._ctxIo?.disconnect(),this._ctxIo=null,clearTimeout(this._ctxRecoveryTimer),this._ctxRecoveryTimer=null,clearTimeout(this._rebinTimer),this._rebinWorker&&=(this._rebinWorker.terminate(),this._rebinWorker._fcUrl&&URL.revokeObjectURL(this._rebinWorker._fcUrl),null),this._ro?.disconnect(),this._io?.disconnect(),this._io=null,this._themeWatch?.removeEventListener?.(`change`,this._onScheme),this._themeMutationObserver?.disconnect(),this._themeMutationObserver=null,this._dprMq?.removeEventListener?.(`change`,this._onDprChange),this._dprMq=null,this._unsubscribeComm?.(),this._unsubscribeComm=null;for(let{target:e,type:t,handler:n,options:r}of 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Set;for(let i of t){let t=e[i];t&&!r.has(t)&&(r.add(t),n.deleteBuffer(t)),e[i]=null}}_destroyTraceResources(e,t){if(!e)return;this._destroyDensitySample(e),this._deleteVaos(e),this._deleteVaos(e.drill),this._deleteBuffers(e,[`xBuf`,`yBuf`,`cBuf`,`sBuf`,`selBuf`,`baseBuf`,`x0Buf`,`x1Buf`,`x2Buf`,`y0Buf`,`y1Buf`,`y2Buf`,`posBuf`,`value1Buf`,`value0Buf`,`_transitionPrevXBuf`,`_transitionPrevYBuf`,`_transitionPrevPosBuf`,`_transitionPrevValue1Buf`,`_transitionPrevValue0Buf`]),this._deleteBuffers(e.drill,[`xBuf`,`yBuf`,`cBuf`,`sBuf`,`selBuf`,`dBuf`]);let n=[];e.heatmap&&n.push(e.heatmap.tex);for(let t of e.densityCache||[])n.push(t&&t.tex);e.density&&n.push(e.density.tex),e._shownDensity&&n.push(e._shownDensity.tex);for(let e of n)e&&!t.has(e)&&(t.add(e),this.gl.deleteTexture(e));e.drill=null,e.density=null,e._shownDensity=null,e.densityCache=[],e.heatmap=null,e._cpu=null}_destroyGlResources(){let e=this.gl;if(!e)return;let t=new Set;for(let e of this.gpuTraces||[])this._destroyTraceResources(e,t);for(let n of this._lutCache.values())n&&!t.has(n)&&(t.add(n),e.deleteTexture(n));this._lutCache.clear(),this.pickFbo&&e.deleteFramebuffer(this.pickFbo),this.pickTex&&!t.has(this.pickTex)&&e.deleteTexture(this.pickTex),this.pickFbo=null,this.pickTex=null,this.quad&&e.deleteBuffer(this.quad),this.quad=null,this.quadVao&&e.deleteVertexArray(this.quadVao),this.quadVao=null;for(let t of this._progCache?this._progCache.values():[])t&&e.deleteProgram(t);this._progCache&&this._progCache.clear(),this._glPrograms=this._progCache,this.gpuTraces=[]}},st=new Set([`color`,`label_color`,`label_opacity`,`opacity`,`width`,`head_size`,`head_style`,`tail_style`,`shaft_width_start`,`shaft_width_end`,`curve`,`angle_a`,`angle_b`,`gap_start`,`gap_end`,`start_offset`,`label_clear`,`dash`,`span_start`,`span_end`,`size`,`symbol`,`stroke_color`,`stroke_width`,`coordinate_space`]);function ct(e,t){if(typeof e.label_clear!=`string`)return 0;let n=e.label_clear.split(`,`).map(Number);if(n.length!==4||n.some(e=>!Number.isFinite(e)||e<0))return 0;let[r,i,a,o]=n,[s,c]=t,l=s>1e-9?i/s:s<-1e-9?r/-s:1/0,u=c>1e-9?o/c:c<-1e-9?a/-c:1/0,d=Math.min(l,u);return Number.isFinite(d)?d:0}function lt(e,t,n,r,i){let a=e=>Number.isFinite(Number(e))?Number(e):null;if(typeof i.start_offset==`string`){let n=i.start_offset.split(`,`).map(Number);n.length===2&&n.every(Number.isFinite)&&(e+=n[0],t+=n[1])}let o=a(i.angle_a),s=a(i.angle_b),c=a(i.curve),l=null,u=null;if(o!==null&&s!==null){let i=-o*Math.PI/180,a=-s*Math.PI/180,c=Math.cos(i)*Math.sin(a)-Math.sin(i)*Math.cos(a);if(Math.abs(c)>1e-6){let o=((n-e)*Math.sin(a)-(r-t)*Math.cos(a))/c;l=e+o*Math.cos(i),u=t+o*Math.sin(i)}}else if(c){let i=n-e,a=r-t;l=(e+n)/2+c*a,u=(t+r)/2-c*i}let d=(e,t,n,r)=>{let i=Math.hypot(n-e,r-t)||1;return[(n-e)/i,(r-t)/i]},f=l===null?d(e,t,n,r):d(e,t,l,u),p=l===null?d(n,r,e,t):d(n,r,l,u),m=Math.max(0,a(i.gap_start)||0,ct(i,f)),h=Math.max(0,a(i.gap_end)||0),g=Math.hypot(n-e,r-t),_=m+h<g*.9,v=_?[e+m*f[0],t+m*f[1]]:[e,t],y=_?[n+h*p[0],r+h*p[1]]:[n,r],b=l===null?d(v[0],v[1],y[0],y[1]):d(l,u,y[0],y[1]),x=l===null?d(y[0],y[1],v[0],v[1]):d(l,u,v[0],v[1]);return{p0:v,p1:y,control:l===null?null:[l,u],dir0:x,dir1:b}}function ut(e,t=24){let[n,r]=e.p0,[i,a]=e.p1;if(!e.control)return[[n,r],[i,a]];let[o,s]=e.control,c=[];for(let e=0;e<=t;e++){let l=e/t,u=1-l;c.push([u*u*n+2*u*l*o+l*l*i,u*u*r+2*u*l*s+l*l*a])}return c}function dt(e,t){if(!(t>0)||e.length<2)return e;let n=e.slice(),r=t;for(;n.length>=2;){let[e,t]=n[n.length-2],[i,a]=n[n.length-1],o=Math.hypot(i-e,a-t);if(o>r){let s=1-r/o;return n[n.length-1]=[e+s*(i-e),t+s*(a-t)],n}r-=o,n.pop()}return n}function ft(e,t,n){let r=[],i=[],a=e.length;for(let o=0;o<a;o++){let[s,c]=e[o],[l,u]=e[Math.max(0,o-1)],[d,f]=e[Math.min(a-1,o+1)],p=Math.hypot(d-l,f-u)||1,m=-(f-u)/p,h=(d-l)/p,g=(t+(n-t)*(o/Math.max(1,a-1)))/2;r.push([s+g*m,c+g*h]),i.push([s-g*m,c-g*h])}return r.concat(i.reverse())}Object.assign(Q.prototype,{_annotationPaint(e,t){return C(this.root,e&&e.color,t)},_annotationLabelPaint(e,t){return C(this.root,e&&(e.label_color||e.color),t)},_annotationStrokePaint(e,t){return C(this.root,e&&e.stroke_color,t)},_drawAnnotationMarker(e,t,n,r,i){if(!Number.isFinite(t)||!Number.isFinite(n))return;let a=Math.max(1,this._styleNumber(r,`size`,Number(i.size)||8)/2),o=[`circle`,`square`,`diamond`,`cross`].includes(i.symbol)?i.symbol:`circle`;if(e.save(),e.globalAlpha=this._styleNumber(r,`opacity`,1),e.fillStyle=this._annotationPaint(r,[.15,.39,.92,1]),e.strokeStyle=o===`cross`?this._annotationPaint(r,[.15,.39,.92,1]):this._annotationStrokePaint(r,[1,1,1,1]),e.lineWidth=Math.max(0,this._styleNumber(r,`stroke_width`,1.5)),e.beginPath(),o===`square`)e.rect(t-a,n-a,a*2,a*2);else if(o===`diamond`)e.moveTo(t,n-a),e.lineTo(t+a,n),e.lineTo(t,n+a),e.lineTo(t-a,n),e.closePath();else if(o===`cross`){e.moveTo(t-a,n),e.lineTo(t+a,n),e.moveTo(t,n-a),e.lineTo(t,n+a),e.stroke(),e.restore();return}else e.arc(t,n,a,0,Math.PI*2);e.fill(),e.lineWidth>0&&e.stroke(),e.restore()},_drawArrowLine(e,t,n,r,i,a){if(![t,n,r,i].every(Number.isFinite))return;let o=lt(t,n,r,i,a);e.save(),e.globalAlpha=this._styleNumber(a,`opacity`,1),e.strokeStyle=this._annotationPaint(a,[.4,.44,.52,1]),e.fillStyle=e.strokeStyle,e.lineWidth=Math.max(.5,this._styleNumber(a,`width`,1.5)),e.setLineDash(Array.isArray(a.dash)?a.dash:typeof a.dash==`string`?a.dash.split(`,`).map(Number):[]);let s=Number(a.shaft_width_start),c=Number(a.shaft_width_end),l=a.head_style||`triangle`,u=Math.max(4,this._styleNumber(a,`head_size`,8));if(Number.isFinite(s)||Number.isFinite(c)){let t=ut(o);l===`triangle`&&(t=dt(t,u*Math.cos(Math.PI/6)));let n=ft(t,Number.isFinite(s)?s:1,Number.isFinite(c)?c:1);e.beginPath(),e.moveTo(n[0][0],n[0][1]);for(let t=1;t<n.length;t++)e.lineTo(n[t][0],n[t][1]);e.closePath(),e.fill()}else e.beginPath(),e.moveTo(o.p0[0],o.p0[1]),o.control?e.quadraticCurveTo(o.control[0],o.control[1],o.p1[0],o.p1[1]):e.lineTo(o.p1[0],o.p1[1]),e.stroke();this._drawArrowEnd(e,o.p1,o.dir1,l,u),this._drawArrowEnd(e,o.p0,o.dir0,a.tail_style||`none`,u),e.restore()},_drawArrowEnd(e,t,n,r,i){if(r===`none`)return;let[a,o]=t,s=Math.atan2(n[1],n[0]);if(e.beginPath(),r===`bar`){e.moveTo(a-i/2*Math.sin(s),o+i/2*Math.cos(s)),e.lineTo(a+i/2*Math.sin(s),o-i/2*Math.cos(s)),e.stroke();return}let c=e=>[a-i*Math.cos(s-e*Math.PI/6),o-i*Math.sin(s-e*Math.PI/6)],[l,u]=c(1),[d,f]=c(-1);if(r===`v`){e.moveTo(l,u),e.lineTo(a,o),e.lineTo(d,f),e.stroke();return}e.moveTo(a,o),e.lineTo(l,u),e.lineTo(d,f),e.closePath(),e.fill()},_drawAnnotationShapes(e){let t=Array.isArray(this.spec.annotations)?this.spec.annotations:[];if(!t.length)return;let n=this.plot;e.save(),e.beginPath(),e.rect(n.x,n.y,n.w,n.h),e.clip();for(let r of t){let t=r&&typeof r.style==`object`?r.style:{};if(r.kind===`band`){let i=r.axis===`x`,a=i?this._dataPxX(Number(r.start)):this._dataPxY(Number(r.start)),o=i?this._dataPxX(Number(r.end)):this._dataPxY(Number(r.end));if(!Number.isFinite(a)||!Number.isFinite(o))continue;let s=Math.max(i?n.x:n.y,Math.min(a,o)),c=Math.min(i?n.x+n.w:n.y+n.h,Math.max(a,o));if(c<=s)continue;e.save(),e.globalAlpha=this._styleNumber(t,`opacity`,.14),e.fillStyle=this._annotationPaint(t,[.39,.45,.55,1]);let l=Math.max(0,Math.min(1,Number(t.span_start)||0)),u=t.span_end===void 0?1:Number(t.span_end),d=Math.max(l,Math.min(1,Number.isFinite(u)?u:1));i?e.fillRect(s,n.y+(1-d)*n.h,c-s,(d-l)*n.h):e.fillRect(n.x+l*n.w,s,(d-l)*n.w,c-s),e.restore()}else if(r.kind===`rule`){let i=r.axis===`x`,a=i?this._dataPxX(Number(r.value)):this._dataPxY(Number(r.value));if(!Number.isFinite(a)||i&&(a<n.x-1||a>n.x+n.w+1)||!i&&(a<n.y-1||a>n.y+n.h+1))continue;let o=Math.round(a)+.5;e.save(),e.globalAlpha=this._styleNumber(t,`opacity`,1),e.strokeStyle=this._annotationPaint(t,[.4,.44,.52,1]),e.lineWidth=Math.max(.5,this._styleNumber(t,`width`,1.5)),e.setLineDash(Array.isArray(t.dash)?t.dash:typeof t.dash==`string`?t.dash.split(`,`).map(Number):[]),e.beginPath();let s=Math.max(0,Math.min(1,Number(t.span_start)||0)),c=t.span_end===void 0?1:Number(t.span_end),l=Math.max(s,Math.min(1,Number.isFinite(c)?c:1));i?(e.moveTo(o,n.y+(1-l)*n.h),e.lineTo(o,n.y+(1-s)*n.h)):(e.moveTo(n.x+s*n.w,o),e.lineTo(n.x+l*n.w,o)),e.stroke(),e.restore()}else if(r.kind===`arrow`)this._drawArrowLine(e,this._dataPxX(Number(r.x0)),this._dataPxY(Number(r.y0)),this._dataPxX(Number(r.x1)),this._dataPxY(Number(r.y1)),t);else if(r.kind===`callout`){let n=this._dataPxX(Number(r.x)),i=this._dataPxY(Number(r.y)),a=Number.isFinite(Number(r.dx))?Number(r.dx):0,o=Number.isFinite(Number(r.dy))?Number(r.dy):0;this._drawArrowLine(e,n+a,i+o,n,i,t)}else r.kind===`marker`&&this._drawAnnotationMarker(e,this._dataPxX(Number(r.x)),this._dataPxY(Number(r.y)),t,r)}e.restore()},_drawAnnotationLabels(e){if(!e)return;let t=Array.isArray(this.spec.annotations)?this.spec.annotations:[];if(!t.length)return;let n=this.plot;for(let e of t){let t=typeof e.text==`string`?e.text:``;if(!t)continue;let r=e&&typeof e.style==`object`?e.style:{},i=null,a=null,o=null;if(e.kind===`text`)r.coordinate_space===`axes_fraction`?(i=n.x+Number(e.x)*n.w,a=n.y+(1-Number(e.y))*n.h):r.coordinate_space===`figure_fraction`?(i=Number(e.x)*this.size.w,a=(1-Number(e.y))*this.size.h):r.coordinate_space===`yaxis_transform`?(i=n.x+Number(e.x)*n.w,a=this._dataPxY(Number(e.y))):r.coordinate_space===`xaxis_transform`?(i=this._dataPxX(Number(e.x)),a=n.y+(1-Number(e.y))*n.h):(i=this._dataPxX(Number(e.x)),a=this._dataPxY(Number(e.y)));else if(e.kind===`rule`)e.axis===`x`?(i=this._dataPxX(Number(e.value)),a=n.y+6):(i=n.x+n.w-6,a=this._dataPxY(Number(e.value)));else if(e.kind===`band`)e.axis===`x`?(i=(this._dataPxX(Number(e.start))+this._dataPxX(Number(e.end)))/2,a=n.y+6):(i=n.x+n.w-6,a=(this._dataPxY(Number(e.start))+this._dataPxY(Number(e.end)))/2);else if(e.kind===`arrow`){let t=this._dataPxX(Number(e.x0)),n=this._dataPxY(Number(e.y0)),r=this._dataPxX(Number(e.x1)),s=this._dataPxY(Number(e.y1));i=(t+r)/2,a=(n+s)/2;let c=Math.hypot(r-t,s-n);c>1e-6&&(o=[-(s-n)/c,(r-t)/c],o[1]>0&&(o=[-o[0],-o[1]]))}else(e.kind===`callout`||e.kind===`marker`)&&(i=this._dataPxX(Number(e.x)),a=this._dataPxY(Number(e.y)));if(!Number.isFinite(i)||!Number.isFinite(a)||i<n.x-24||i>n.x+n.w+24||a<n.y-24||a>n.y+n.h+24)continue;let s=document.createElement(`div`);s.textContent=t;let c=Number.isFinite(Number(e.dx))?Number(e.dx):0,l=Number.isFinite(Number(e.dy))?Number(e.dy):0,u=e.anchor,d=String(r.vertical_align||``);e.kind===`rule`||e.kind===`band`?e.axis===`x`?(!u&&e.kind===`band`&&(u=`middle`),d||=`top`):(u||=`end`,!d&&e.kind===`band`&&(d=`middle`)):e.kind===`arrow`&&(u||=`middle`,d||=`middle`);let f=u===`middle`?`-50%`:u===`end`?`-100%`:`0px`,p=Number.isFinite(Number(r.rotation))?(Number(r.rotation)%360+360)%360:0,m=d===`center`||d===`middle`?`-50%`:d===`bottom`?`-100%`:d===`top`?`0px`:`calc(-100% + 0.35em)`,h=`translate(${f},${m})`;if(p===90||p===270){let e=p===270;h=`rotate(${e?90:-90}deg) translate(${d===`center`||d===`middle`?`-50%`:d===`top`?e?`0`:`-100%`:d===`bottom`?e?`-100%`:`0`:e?`0`:`-100%`},${u===`middle`?`-50%`:u===`end`?e?`0`:`-100%`:e?`-100%`:`0`})`}else p&&(h=`rotate(${-p}deg) translate(${f},${m})`);s.style.cssText=`position:absolute;left:${i+c}px;top:${a+l}px;transform:${h};transform-origin:0 0;pointer-events:none;white-space:pre-line;text-align:center;width:max-content;`,this._applySlot(s,`annotation_label`),this._applyClass(s,e.class_name);let g=e.kind!==`text`&&e.kind!==`callout`,_={};for(let[t,n]of Object.entries(r)){if(t===`opacity`&&e.kind===`text`){_[t]=n;continue}st.has(t)||g&&t===`opacity`||(_[t]=n)}if(this._applyStyle(s,_),r&&(r.label_color||r.color)&&(s.style.color=this._annotationLabelPaint(r,this.theme.label)),r&&r.label_opacity!==void 0){let e=Number(r.label_opacity);Number.isFinite(e)&&(s.style.opacity=String(Math.max(0,Math.min(1,e))))}this.labels.appendChild(s);let v=getComputedStyle(s),y=(e,t)=>(parseFloat(e)||0)+(parseFloat(t)||0),b=y(v.paddingLeft,v.borderLeftWidth),x=y(v.paddingRight,v.borderRightWidth),S=y(v.paddingTop,v.borderTopWidth),C=y(v.paddingBottom,v.borderBottomWidth);if((b||x||S||C)&&p!==90&&p!==270){let e=f===`-100%`?x:f===`-50%`?0:-b,t=m===`-50%`?0:m===`0px`?-S:C;s.style.transform=`${p?`rotate(${-p}deg) `:``}translate(calc(${f} + ${e}px), calc(${m} + ${t}px))`}let w=o&&this.labels.getBoundingClientRect();if(o&&w.width>0){let e=w.width/this.size.w,t=s.getBoundingClientRect(),n=t.width/e/2*Math.abs(o[0])+t.height/e/2*Math.abs(o[1])+3;i+=o[0]*n,a+=o[1]*n,s.style.left=`${i+c}px`,s.style.top=`${a+l}px`}let T=this.labels.getBoundingClientRect();if(T.width>0){let e=T.width/this.size.w,t=s.getBoundingClientRect(),n=t.right>T.right?T.right-t.right:t.left<T.left?T.left-t.left:0,r=t.bottom>T.bottom?T.bottom-t.bottom:t.top<T.top?T.top-t.top:0;n&&(s.style.left=`${i+c+n/e}px`),r&&(s.style.top=`${a+l+r/e}px`)}}}}),Object.assign(Q.prototype,{_showTooltip(e,t,n){let r=this._localRow(e);if(this._lastRow=r,this._setTooltipAnchor(e,r,t,n),this._renderTooltip(r,t,n),this._interactionFlag(`hover`)&&this._dispatchChartEvent(`hover`,{row:r,trace:e.trace,index:e.index,view:this._eventView(`hover`),...this._hoverPayload(r,e,t,n)}),this.comm){this._pickSeq=(this._pickSeq||0)+1;let t={type:`pick`,seq:this._pickSeq,trace:e.trace,index:e.index},n=e.g;n&&n.tier===`density`&&n.drill&&n.drill.seq!==void 0&&(t.drill_seq=n.drill.seq),this.comm.send(t)}},_localRow(e){let t=e.g,n=t._cpu,r={trace:t.trace.id,index:e.index};if(e.heatmap&&t.heatmap&&t._cpuHeatmap){let n=t.heatmap,{row:i,col:a}=e.heatmap,o=n.xRange[0]+(a+.5)*((n.xRange[1]-n.xRange[0])/n.w),s=n.yRange[0]+(i+.5)*((n.yRange[1]-n.yRange[0])/n.h),[c,l]=this._sourceDisplayValue(t,`x`,o,`float`),[u,d]=this._sourceDisplayValue(t,`y`,s,`float`);r.x=c,r.y=u,l!==void 0&&(r.x_kind=l),d!==void 0&&(r.y_kind=d);let f=t._cpuHeatmap.grid[e.index];r.color_value=this._denormalizeUnit(f,t.trace.color&&t.trace.color.domain)}else if(t._cpuRect){let n=t._cpuRect,i=this._decodeValue(n.x0,n.x0Meta,e.index),a=this._decodeValue(n.x1,n.x1Meta,e.index);this._decodeValue(n.y0,n.y0Meta,e.index);let o=this._decodeValue(n.y1,n.y1Meta,e.index),[s,c]=this._sourceDisplayValue(t,`x`,i+(a-i)/2,n.x0Meta.kind),[l,u]=this._sourceDisplayValue(t,`y`,o,n.y1Meta.kind);r.x=s,r.y=l,c!==void 0&&(r.x_kind=c),u!==void 0&&(r.y_kind=u)}else if(n){let i=n.xMeta||t.xMeta,a=n.yMeta||t.yMeta,o=this._decodeValue(n.x,i,e.index),s=this._decodeValue(n.y,a,e.index),[c,l]=this._sourceDisplayValue(t,`x`,o,i&&i.kind),[u,d]=this._sourceDisplayValue(t,`y`,s,a&&a.kind);r.x=c,r.y=u,l!==void 0&&(r.x_kind=l),d!==void 0&&(r.y_kind=d);let f=t.trace.color;if(n.color&&f)if(f.mode===`categorical`&&Array.isArray(f.categories)){let t=Math.round(n.color[e.index]);t>=0&&t<f.categories.length&&(r.color_category=String(f.categories[t]))}else f.mode===`continuous`&&(r.color_value=this._denormalizeUnit(n.color[e.index],f.domain));let p=t.trace.size;n.size&&p&&p.mode===`continuous`&&(r.size_value=this._denormalizeUnit(n.size[e.index],p.domain))}return this._applySharedTooltipFields(r),r},_sourceDisplayValue(e,t,n,r){let i=t===`x`?this._axis(e&&e.xAxis):this._axis(e&&e.yAxis);return t===`x`&&i.kind===`category`||t===`y`&&i.kind===`category`?[ne(n,i.categories||[]),void 0]:[n,r]},_sourceValue(e,t,n){if(!e||n<0)return[void 0,void 0];let r=t.channel;if(r===`x`||r===`y`){let t=e._cpu;if(!t||!t[r])return[void 0,void 0];let i=r===`x`?t.xMeta||e.xMeta:t.yMeta||e.yMeta,a=this._decodeValue(t[r],i,n);return Number.isFinite(a)?this._sourceDisplayValue(e,r,a,i&&i.kind):[void 0,void 0]}if(r===`color_value`){if(e._cpuHeatmap&&e._cpuHeatmap.grid&&e.trace.color)return[this._denormalizeUnit(e._cpuHeatmap.grid[n],e.trace.color.domain),void 0];if(e._cpu&&e._cpu.color&&e.trace.color)return[this._denormalizeUnit(e._cpu.color[n],e.trace.color.domain),void 0]}if(r===`color_category`&&e._cpu&&e._cpu.color&&e.trace.color){let t=Math.round(e._cpu.color[n]),r=e.trace.color.categories||[];if(t>=0&&t<r.length)return[String(r[t]),void 0]}return r===`size_value`&&e._cpu&&e._cpu.size&&e.trace.size?[this._denormalizeUnit(e._cpu.size[n],e.trace.size.domain),void 0]:[void 0,void 0]},_applySharedTooltipFields(e){let t=this.spec.tooltip&&this.spec.tooltip.sources;if(!(!t||typeof t!=`object`||e.x===void 0))for(let[n,r]of Object.entries(t)){if(!Array.isArray(r)||e[n]!==void 0)continue;let t=r.find(t=>t.trace===e.trace)||r[0];if(!t||!Number.isFinite(Number(t.trace)))continue;let i=this.gpuTraces.find(e=>e.trace.id===t.trace);if(!i)continue;let a=Number.isInteger(e.index)&&t.trace===e.trace?e.index:-1;!i._cpuHeatmap&&(a<0||!i._cpu||!i._cpu.x||a>=i._cpu.x.length)&&(a=this._nearestCpuIndex(i,e.x));let[o,s]=this._sourceValue(i,t,a);o!==void 0&&(e[n]=o,s!==void 0&&(e[`${n}_kind`]=s))}},_denormalizeUnit(e,t){let n=Number(e);if(!Number.isFinite(n)||!Array.isArray(t)||t.length<2)return n;let r=Number(t[0]),i=Number(t[1]);return!Number.isFinite(r)||!Number.isFinite(i)?n:r+n*(i-r)},_defaultTooltipLines(e){let t=[];return e.x!==void 0&&t.push(`x: ${N(e.x,e.x_kind)}`),e.y!==void 0&&t.push(`y: ${N(e.y,e.y_kind)}`),e.color_value!==void 0&&t.push(`color: ${N(e.color_value)}`),e.color_category!==void 0&&t.push(`${e.color_category}`),e.size_value!==void 0&&t.push(`size: ${N(e.size_value)}`),t.length||t.push(`#${e.index}`),t},_tooltipLookup(e,t){let n=this.spec.tooltip&&this.spec.tooltip.aliases||{},r=e[t]===void 0?n[t]:t;return!r||e[r]===void 0?[void 0,void 0]:[e[r],e[`${r}_kind`]]},_formatTooltipValue(e,t,n){let r=re(e,n);return r===null?N(e,t):r},_tooltipLines(e){let t=this.spec.tooltip||{};if(!t.title&&!Array.isArray(t.fields))return this._defaultTooltipLines(e);let n=t.format||{},r=[];if(typeof t.title==`string`){let i=t.title.replace(/\{([^}]+)\}/g,(t,r)=>{let[i,a]=this._tooltipLookup(e,r);return i===void 0?``:this._formatTooltipValue(i,a,n[r])});i&&r.push(i)}if(Array.isArray(t.fields))for(let i of t.fields){if(typeof i!=`string`)continue;let[t,a]=this._tooltipLookup(e,i);t!==void 0&&r.push(`${i}: ${this._formatTooltipValue(t,a,n[i])}`)}return r.length?r:this._defaultTooltipLines(e)},_setTooltipAnchor(e,t,n,r){let i=e.g;if(!i){this._tooltipAnchor=null;return}let a=i.xAxis||`x`,o=i.yAxis||`y`,s=t.x,c=t.y;if(!Number.isFinite(s)||!Number.isFinite(c)){let e=this.canvas.getBoundingClientRect();[s,c]=this._dataFromCanvas(n-e.left,r-e.top,a,o)}this._tooltipAnchor=Number.isFinite(s)&&Number.isFinite(c)?{xAxis:a,yAxis:o,x:s,y:c}:null,this._tooltipAnchor&&!this._tooltipAnchorPx()&&(this._tooltipAnchor=null)},_tooltipAnchorPx(){let e=this._tooltipAnchor;if(!e)return null;let t=this._dataPx(e.xAxis,e.x),n=this._dataPx(e.yAxis,e.y),r=this.plot;return!Number.isFinite(t)||!Number.isFinite(n)||t<r.x||t>r.x+r.w||n<r.y||n>r.y+r.h?null:{lx:t,ly:n}},_hideTooltip(){this.tooltip.style.display=`none`,this._tooltipAnchor=null},_repositionTooltip(){if(!this._tooltipAnchor)return;let e=this._tooltipAnchorPx();if(!e){this.tooltip.style.display=`none`;return}this.tooltip.style.display=`block`,this._placeTooltip(e.lx,e.ly)},_placeTooltip(e,t){let n=this.tooltip.offsetWidth,r=this.tooltip.offsetHeight,i=Math.max(4,this.size.w-n-4),a=Math.max(4,Math.min(e+12,i)),o=t+12,s=t-r-12,c=o+r<=this.size.h-4?o:Math.max(4,s);this.tooltip.style.left=a+`px`,this.tooltip.style.top=c+`px`},_renderTooltip(e,t,n,r={}){if(!e||this.spec.show_tooltip===!1){this._hideTooltip();return}let i=this._tooltipLines(e);if(this._customTooltip||(this.tooltip.textContent=``,i.forEach((e,t)=>{t&&this.tooltip.appendChild(document.createElement(`br`)),this.tooltip.appendChild(document.createTextNode(e))})),this.a11yLive&&r.announce!==!1){let e=this._a11yKeyboardReadout,t=i.join(`, `),n=e?`Point ${e.flat+1} of ${e.total}. ${t}`:t;this.a11yLive.textContent!==n&&(this.a11yLive.textContent=n)}this.tooltip.style.display=`block`;let a=this._tooltipAnchorPx();if(a)this._placeTooltip(a.lx,a.ly);else if(this._tooltipAnchor)this.tooltip.style.display=`none`;else{let e=this.root.getBoundingClientRect();this._placeTooltip(t-e.left,n-e.top)}}}),Object.assign(Q.prototype,{_initInteraction(){let e=this.canvas,t=null,n=null;this.selRect=document.createElement(`div`),this.selRect.style.cssText=`position:absolute;display:none;pointer-events:none;z-index:4;`,this._applySlot(this.selRect,`selection`),this.root.appendChild(this.selRect),this.selLasso=document.createElementNS(`http://www.w3.org/2000/svg`,`svg`),this.selLasso.style.cssText=`position:absolute;display:none;pointer-events:none;z-index:4;overflow:visible;`,this.selLasso.dataset.xySelectionLassoOverlay=``,this.selLassoPath=document.createElementNS(`http://www.w3.org/2000/svg`,`path`),this.selLassoPath.dataset.xySelectionLasso=``,this.selLasso.appendChild(this.selLassoPath),this.selLassoHandles=document.createElementNS(`http://www.w3.org/2000/svg`,`g`),this.selLassoHandles.dataset.xySelectionLassoHandles=``,this.selLasso.appendChild(this.selLassoHandles),this.root.appendChild(this.selLasso),this._lassoPolygon=null;let r=null,i=t=>{if(!r||t.pointerId!==r.pointerId||!this._lassoPolygon)return;let n=e.getBoundingClientRect(),i=Math.max(0,Math.min(n.width,t.clientX-n.left)),a=Math.max(0,Math.min(n.height,t.clientY-n.top));this._lassoPolygon[r.index]=this._dataFromCanvas(i,a),this._renderLassoSelection(),t.preventDefault(),t.stopPropagation()};this._listen(this.selLasso,`pointerdown`,e=>{let t=e.target.closest?.(`[data-xy-selection-lasso-handle]`);if(!t||!this._lassoPolygon)return;let n=Number(t.dataset.xySelectionLassoHandle);if(!(!Number.isInteger(n)||!this._lassoPolygon[n])){r={index:n,pointerId:e.pointerId,original:[...this._lassoPolygon[n]],handle:t},t.dataset.xyActive=``,this._hideTooltip();try{this.selLasso.setPointerCapture(e.pointerId)}catch{}e.preventDefault(),e.stopPropagation()}}),this._listen(this.selLasso,`pointermove`,i),this._listen(this.selLasso,`pointerup`,e=>{if(!r||e.pointerId!==r.pointerId)return;i(e);let t=r.handle;r=null,delete t.dataset.xyActive,this._lassoPolygon&&this._sendSelectPolygon(this._lassoPolygon)}),this._listen(this.selLasso,`pointercancel`,e=>{!r||e.pointerId!==r.pointerId||(this._lassoPolygon&&(this._lassoPolygon[r.index]=r.original),delete r.handle.dataset.xyActive,r=null,this._lassoPolygon&&this._renderLassoSelection(),e.stopPropagation())}),this._interactionFlag(`crosshair`)&&(this.crosshairX=document.createElement(`div`),this.crosshairX.style.cssText=`position:absolute;display:none;pointer-events:none;z-index:3;width:1px;`,this._applySlot(this.crosshairX,`crosshair_x`),this.root.appendChild(this.crosshairX),this.crosshairY=document.createElement(`div`),this.crosshairY.style.cssText=`position:absolute;display:none;pointer-events:none;z-index:3;height:1px;`,this._applySlot(this.crosshairY,`crosshair_y`),this.root.appendChild(this.crosshairY));let a=(t,n)=>{let r=e.getBoundingClientRect();return this._dataFromCanvas(t-r.left,n-r.top)},o=(t,n)=>{let r=e.getBoundingClientRect(),i=Math.max(0,Math.min(r.width,t-r.left)),a=Math.max(0,Math.min(r.height,n-r.top));return{x:r.left+i,y:r.top+a,data:this._dataFromCanvas(i,a)}};this._listen(e,`pointerdown`,r=>{this._cancelViewAnimation();let i=this._interactionFlag(`pan`,!0),s=this._interactionFlag(`zoom`,!0),c=this._interactionFlag(`navigation`,!0),l=this._interactionFlag(`box_zoom`,!0),u=this._interactionFlag(`brush`,!0)&&this._interactionFlag(`select`,!0),d=this.dragMode.startsWith(`select`)?this.dragMode:null,f=(r.shiftKey||d)&&u&&this._pickable?r.shiftKey?`select`:d:this.dragMode===`zoom`&&c&&s&&l?`zoom`:null;if(f){let t=f.startsWith(`select`)&&this._lassoPolygon?this._lassoPolygon.map(e=>[...e]):null;f.startsWith(`select`)&&this._clearLassoOverlay();let i=f===`select-lasso`?o(r.clientX,r.clientY):null,s=i?i.data:a(r.clientX,r.clientY);n={mode:f,sx:r.clientX,sy:r.clientY,d0:s,points:i?[i]:null,previousLasso:t};try{e.setPointerCapture(r.pointerId)}catch{}this._hideTooltip();return}if(this.dragMode===`pan`&&c&&i){t={px:r.clientX,py:r.clientY,view:this._copyView(this.view),moved:!1,interactionId:++this._interactionSeq,axes:[...new Set([...this._axisPolicy(`pan_axes`),...this._axisIds().filter(e=>this._axisContained(e))])],changedAxes:[]};try{e.setPointerCapture(r.pointerId)}catch{}this._hideTooltip()}}),this._listen(e,`pointermove`,e=>{if(n){this._updateBand(n,e);return}if(t){t.moved=!0;let n=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e,t.view)]]));for(let r of t.axes){let i=this._axis(r),[a,o]=this._axisRange(r,t.view),s=this._axisCoord(i,a),c=this._axisCoord(i,o);if(![s,c].every(Number.isFinite)||s===c)continue;let l=this._axisDim(r),u=l===`x`?this.plot.w:this.plot.h,d=(l===`x`?e.clientX-t.px:e.clientY-t.py)/u*(c-s),f=l===`x`?-d:d;n[r]=[this._axisValue(i,s+f),this._axisValue(i,c+f)]}let r=this._setView({ranges:n},{source:`pan_drag`,phase:`update`,interactionId:t.interactionId});t.changedAxes=[...new Set([...t.changedAxes,...r])];return}this._updateCrosshair(e),this._hover(e)}),this._listen(e,`pointerup`,e=>{if(n){n.mode===`select-lasso`&&this._updateBand(n,e),this.selRect.style.display=`none`,this.selLasso.style.display=`none`;let t=a(e.clientX,e.clientY);if(n.mode===`select-lasso`?n.points.length>=3:Math.abs(e.clientX-n.sx)>3||Math.abs(e.clientY-n.sy)>3){if(n.mode===`zoom`&&this._interactionFlag(`zoom`,!0))this._zoomToBox(n.d0,t,!0,{source:`box_zoom`,phase:`end`,interactionId:++this._interactionSeq});else if(n.mode===`select-lasso`)if(n.points.length>=3){let e=this._simplifyLassoPoints(n.points);this._sendSelectPolygon(e.map(e=>e.data))}else n.previousLasso&&(this._lassoPolygon=n.previousLasso,this._renderLassoSelection());else{let e=n.d0;n.mode===`select-x`?(e=[n.d0[0],this.view.y0],t[1]=this.view.y1):n.mode===`select-y`&&(e=[this.view.x0,n.d0[1]],t[0]=this.view.x1),this._sendSelect(e,t)}this._ignoreNextClick=!0}else n.previousLasso&&(this._lassoPolygon=n.previousLasso,this._renderLassoSelection());n=null;return}t&&t.moved&&(this._ignoreNextClick=!0,t.changedAxes.length&&this._emitViewChange(`pan_drag`,{axes:t.changedAxes,phase:`end`,interactionId:t.interactionId})),t&&!t.moved&&this._hideTooltip(),t=null}),this._listen(e,`pointercancel`,()=>{this.selRect.style.display=`none`,this.selLasso.style.display=`none`,n?.previousLasso&&(this._lassoPolygon=n.previousLasso,this._renderLassoSelection()),n=null,t=null}),this._listen(e,`pointerleave`,()=>this._pointerHoverExit()),this._listen(document,`pointerover`,e=>{!this._lastHoverXY||this._a11yKeyboardReadout||this.root.contains(e.target)||this._pointerHoverExit()}),this._listen(e,`click`,e=>this._click(e)),this._listen(e,`wheel`,t=>{if(!this._interactionFlag(`navigation`,!0)||!this._interactionFlag(`zoom`,!0)||!this._interactionFlag(`wheel_zoom`,!0))return;t.preventDefault();let n=1.0015**t.deltaY,r=e.getBoundingClientRect(),i=(t.clientX-r.left)/r.width,a=1-(t.clientY-r.top)/r.height;this._queueWheelZoom(n,i,a)},{passive:!1}),this._listen(e,`dblclick`,()=>{this._interactionFlag(`navigation`,!0)&&this._interactionFlag(`double_click_reset`,!0)&&this._resetView(!0,`reset`)}),this._listen(e,`keydown`,e=>{e.key===`Escape`&&(n||t)&&(this.selRect.style.display=`none`,this.selLasso.style.display=`none`,n=null,t=null,e.preventDefault(),e.stopImmediatePropagation())}),this._listen(e,`keydown`,e=>this._onA11yKey(e))},_pointerHoverExit(){let e=this._hoverId!==-1;this._hoverId=-1,this._hoverTarget=null,this._lastHoverXY=null,this._a11yKeyboardReadout=null,this._pickSeq=(this._pickSeq||0)+1,this._hideTooltip(),this._hideCrosshair(),this._interactionFlag(`hover`)&&this._dispatchChartEvent(`leave`,{view:this._eventView(`leave`),active:!1}),e&&this._drawKeepPick()},_a11yPointGroups(){return(this.gpuTraces||[]).filter(e=>J(e.trace.kind).pointPick&&e.tier!==`density`&&e._cpu&&e._cpu.x&&e._cpu.y&&Math.min(e._cpu.x.length,e._cpu.y.length)>0)},_onA11yKey(e){let t={ArrowRight:1,ArrowDown:1,ArrowLeft:-1,ArrowUp:-1}[e.key],n=e.key===`Enter`||e.key===` `;if(t===void 0&&e.key!==`Home`&&e.key!==`End`&&e.key!==`Escape`&&!n)return;if(n){if(!this._interactionFlag(`click`)||!this._hoverTarget)return;e.preventDefault();let t=this._hoverTarget,n=this.canvas.getBoundingClientRect(),r=this._lastHoverXY?.clientX??n.left,i=this._lastHoverXY?.clientY??n.top,a={x:r-n.left,y:i-n.top},o={shift:e.shiftKey===!0,alt:e.altKey===!0,ctrl:e.ctrlKey===!0,meta:e.metaKey===!0},s={row:this._localRow?this._localRow(t):null,trace:t.trace,index:t.index,screen:a,modifiers:o,view:this._eventView(`click`)};if(this._dispatchChartEvent(`click`,s),this.comm){let e={type:`click`,trace:t.trace,index:t.index,screen:a,modifiers:o},n=t.g;n&&n.tier===`density`&&n.drill&&n.drill.seq!==void 0&&(e.drill_seq=n.drill.seq),this.comm.send(e)}return}if(e.key===`Escape`){e.preventDefault();let t=this._hoverId!==-1;this._hideTooltip(),this._hoverId=-1,this._hoverTarget=null,this._lastHoverXY=null,this._a11yKeyboardReadout=null,this._pickSeq=(this._pickSeq||0)+1,this.a11yLive&&(this.a11yLive.textContent=`Readout closed.`),t&&this._interactionFlag(`hover`)&&this._dispatchChartEvent(`leave`,{view:this._eventView(`leave`),active:!1}),t&&this._drawKeepPick();return}if(e.preventDefault(),this._interactionTransitionActive())return;let r=this._a11yPointGroups(),i=r.reduce((e,t)=>e+Math.min(t._cpu.x.length,t._cpu.y.length),0);if(!i)return;let a=Number.isInteger(this._a11yPointIndex)?this._a11yPointIndex:-1;a=e.key===`Home`?0:e.key===`End`?i-1:a<0?t>0?0:i-1:Math.max(0,Math.min(i-1,a+t)),this._a11yPointIndex=a;let o=a,s=r[0];for(let e of r){let t=Math.min(e._cpu.x.length,e._cpu.y.length);if(o<t){s=e;break}o-=t}let c={trace:s.trace.id,index:o,g:s},l=this._decodeValue(s._cpu.x,s._cpu.xMeta||s.xMeta,o),u=this._decodeValue(s._cpu.y,s._cpu.yMeta||s.yMeta,o),d=this._dataPx(s.xAxis||`x`,l)-this.plot.x,f=this._dataPx(s.yAxis||`y`,u)-this.plot.y,p=this.canvas.getBoundingClientRect(),m=p.left+Math.max(0,Math.min(p.width,d)),h=p.top+Math.max(0,Math.min(p.height,f));this._hoverId=c.trace*1e9+c.index,this._hoverTarget=c,this._lastHoverXY={clientX:m,clientY:h},this._a11yKeyboardReadout={flat:a,total:i},this._showTooltip(c,m,h),this._drawKeepPick()},_updateCrosshair(e){if(!this.crosshairX||!this.crosshairY)return;let t=this.canvas.getBoundingClientRect(),n=this.root.getBoundingClientRect(),r=e.clientX-t.left,i=e.clientY-t.top;if(r<0||r>t.width||i<0||i>t.height){this._hideCrosshair();return}let a=e.clientX-n.left,o=e.clientY-n.top;this.crosshairX.style.display=`block`,this.crosshairX.style.left=a+`px`,this.crosshairX.style.top=this.plot.y+`px`,this.crosshairX.style.height=this.plot.h+`px`,this.crosshairY.style.display=`block`,this.crosshairY.style.left=this.plot.x+`px`,this.crosshairY.style.top=o+`px`,this.crosshairY.style.width=this.plot.w+`px`},_hideCrosshair(){this.crosshairX&&(this.crosshairX.style.display=`none`),this.crosshairY&&(this.crosshairY.style.display=`none`)},_click(e){if(this._ignoreNextClick){this._ignoreNextClick=!1;return}if(!this._interactionFlag(`click`))return;let t=this.canvas.getBoundingClientRect(),n=e.clientX-t.left,r=e.clientY-t.top,[i,a]=this._dataFromCanvas(n,r),o=this._pickAt(n,r)||this._hoverAt(n,r),s={x:i,y:a,view:this._eventView(`click`),row:o&&this._localRow?this._localRow(o):null,trace:o?o.trace:null,index:o?o.index:null};if(this._dispatchChartEvent(`click`,s),o&&this.comm){let t={type:`click`,trace:o.trace,index:o.index,screen:{x:n,y:r},modifiers:{shift:e.shiftKey===!0,alt:e.altKey===!0,ctrl:e.ctrlKey===!0,meta:e.metaKey===!0}},i=o.g;i&&i.tier===`density`&&i.drill&&i.drill.seq!==void 0&&(t.drill_seq=i.drill.seq),this.comm.send(t)}},_updateBand(e,t){let n=this.canvas.getBoundingClientRect(),r=this.root.getBoundingClientRect();if(e.mode===`select-lasso`){let i=e.points[e.points.length-1],a=Math.max(0,Math.min(n.width,t.clientX-n.left)),o=Math.max(0,Math.min(n.height,t.clientY-n.top)),s=n.left+a,c=n.top+o;e.points.length<2048&&Math.hypot(s-i.x,c-i.y)>=3&&e.points.push({x:s,y:c,data:this._dataFromCanvas(a,o)});let l=e.points.map(e=>[Math.max(this.plot.x,Math.min(this.plot.x+this.plot.w,e.x-r.left)),Math.max(this.plot.y,Math.min(this.plot.y+this.plot.h,e.y-r.top))]);this.selLasso.style.display=`block`,this.selLasso.style.inset=`0`,this.selLasso.setAttribute(`width`,String(this.root.clientWidth)),this.selLasso.setAttribute(`height`,String(this.root.clientHeight)),this.selLassoPath.setAttribute(`d`,l.map((e,t)=>`${t?`L`:`M`}${e[0]} ${e[1]}`).join(` `)+` Z`);return}let i=Math.min(e.sx,t.clientX)-r.left,a=Math.min(e.sy,t.clientY)-r.top,o=Math.abs(t.clientX-e.sx),s=Math.abs(t.clientY-e.sy),c=this.plot.x,l=this.plot.y,u=Math.min(i+o,c+this.plot.w),d=Math.min(a+s,l+this.plot.h),f=Math.max(i,c),p=Math.max(a,l),m=u,h=d;e.mode===`select-x`&&(p=l,h=l+this.plot.h),e.mode===`select-y`&&(f=c,m=c+this.plot.w),this.selRect.dataset.xyBand=e.mode===`zoom`?`zoom`:`select`,this.selRect.style.display=`block`,this.selRect.style.left=f+`px`,this.selRect.style.top=p+`px`,this.selRect.style.width=Math.max(0,m-f)+`px`,this.selRect.style.height=Math.max(0,h-p)+`px`},_simplifyLassoPoints(e,t=6,n=16){let r=e.filter(e=>e&&Number.isFinite(e.x)&&Number.isFinite(e.y));if(r.length>3){let e=r[0],n=r[r.length-1];Math.hypot(e.x-n.x,e.y-n.y)<=t&&r.pop()}if(r.length<=3)return r.slice();let i=(e,t,n)=>{let r=n.x-t.x,i=n.y-t.y;if(r===0&&i===0)return(e.x-t.x)**2+(e.y-t.y)**2;let a=Math.max(0,Math.min(1,((e.x-t.x)*r+(e.y-t.y)*i)/(r*r+i*i))),o=t.x+a*r,s=t.y+a*i;return(e.x-o)**2+(e.y-s)**2},a=e=>{let t=new Uint8Array(r.length);t[0]=1,t[r.length-1]=1;let n=[[0,r.length-1]],a=e*e;for(;n.length;){let[e,o]=n.pop(),s=-1,c=a;for(let t=e+1;t<o;t++){let n=i(r[t],r[e],r[o]);n>c&&(s=t,c=n)}s>=0&&(t[s]=1,n.push([e,s],[s,o]))}return r.filter((e,n)=>t[n])},o=a(t);if(o.length<3&&(o=[r[0],r[Math.floor(r.length/2)],r[r.length-1]]),o.length>n){let e=t,i=Math.max(t,1);for(let t=0;t<16&&o.length>n;t++)e=i,i*=2,o=a(i);for(let t=0;t<12;t++){let t=(e+i)/2,r=a(t);r.length>n?e=t:(i=t,o=r)}o.length<3&&(o=[r[0],r[Math.floor(r.length/2)],r[r.length-1]])}return o},_clearLassoOverlay(){this._lassoPolygon=null,this.selLasso&&(this.selLasso.style.display=`none`,this.selLassoPath?.removeAttribute(`d`),this.selLassoHandles?.replaceChildren())},_renderLassoSelection(){let e=this._lassoPolygon;if(!this.selLasso||!this.selLassoPath||!this.selLassoHandles||!Array.isArray(e)||e.length<3)return;let[t,n]=this._axisRange(`x`),[r,i]=this._axisRange(`y`),a=this._axis(`x`),o=this._axis(`y`),s=this._axisCoord(a,t),c=this._axisCoord(a,n),l=this._axisCoord(o,r),u=this._axisCoord(o,i);if(![s,c,l,u].every(Number.isFinite)||s===c||l===u)return;let d=e.map(e=>{let t=this._axisCoord(a,e[0]),n=this._axisCoord(o,e[1]),r=this.plot.x+(t-s)/(c-s)*this.plot.w,i=this.plot.y+(u-n)/(u-l)*this.plot.h;return[Math.max(this.plot.x,Math.min(this.plot.x+this.plot.w,r)),Math.max(this.plot.y,Math.min(this.plot.y+this.plot.h,i))]});if(d.flat().every(Number.isFinite)){for(this.selLasso.style.display=`block`,this.selLasso.style.inset=`0`,this.selLasso.setAttribute(`width`,String(this.root.clientWidth)),this.selLasso.setAttribute(`height`,String(this.root.clientHeight)),this.selLassoPath.setAttribute(`d`,d.map((e,t)=>`${t?`L`:`M`}${e[0]} ${e[1]}`).join(` `)+` Z`);this.selLassoHandles.childElementCount<d.length;){let e=document.createElementNS(`http://www.w3.org/2000/svg`,`circle`);e.dataset.xySelectionLassoHandle=``,e.setAttribute(`r`,`4`),this.selLassoHandles.appendChild(e)}for(;this.selLassoHandles.childElementCount>d.length;)this.selLassoHandles.lastElementChild.remove();[...this.selLassoHandles.children].forEach((e,t)=>{e.dataset.xySelectionLassoHandle=String(t),e.setAttribute(`cx`,String(d[t][0])),e.setAttribute(`cy`,String(d[t][1])),e.setAttribute(`aria-label`,`Lasso point ${t+1}`)})}},_sendSelect(e,t,n={}){this._clearLassoOverlay();let r=Math.min(e[0],t[0]),i=Math.max(e[0],t[0]),a=Math.min(e[1],t[1]),o=Math.max(e[1],t[1]),s={x0:r,x1:i,y0:a,y1:o};this._historyRecord({source:n.source,interactionId:n.interactionId,history:n.history}),this._stateSelection={range:{...s}},this._lastBrush={mode:`box`,x0:r,x1:i,y0:a,y1:o},this._broadcastLinkedSelection({range:s}),this._dispatchChartEvent(`brush`,{range:s,view:this._eventView(`brush`)}),this.comm?this.comm.send({type:`select`,x0:r,x1:i,y0:a,y1:o}):this._selectLocal(r,i,a,o)},_sendSelectPolygon(e,t={}){if(!Array.isArray(e)||e.length<3)return;let n=e.map(e=>[e[0],e[1]]);n.every(e=>e.every(Number.isFinite))&&(this._historyRecord({source:t.source,interactionId:t.interactionId,history:t.history}),this._stateSelection={polygon:n.map(e=>[...e])},this._lassoPolygon=n,this._lastBrush={mode:`poly`,points:n},this._broadcastLinkedSelection({polygon:n}),this._renderLassoSelection(),this._dispatchChartEvent(`brush`,{polygon:n,view:this._eventView(`brush`)}),this.comm?this.comm.send({type:`select_polygon`,points:n}):this._selectLocalPolygon(n))},_selectLocalPolygon(e,t={}){let n=e.map(e=>e[0]),r=e.map(e=>e[1]),i=Math.min(...n),a=Math.max(...n),o=Math.min(...r),s=Math.max(...r),c=(t,n)=>{let r=!1;for(let i=0,a=e.length-1;i<e.length;a=i++){let[o,s]=e[i],[c,l]=e[a];s>n!=l>n&&t<(c-o)*(n-s)/(l-s)+o&&(r=!r)}return r},l=0;for(let e of this.gpuTraces){if(!e._cpu||e.tier===`density`)continue;let t=e._cpu.x,n=e._cpu.y,r=e._cpu.xMeta||e.xMeta,u=e._cpu.yMeta||e.yMeta,d=r.offset,f=r.scale||1,p=u.offset,m=u.scale||1,h=new Float32Array(e.n),g=0;for(let r=0;r<e.n;r++){let e=t[r]/f+d,l=n[r]/m+p;e>=i&&e<=a&&l>=o&&l<=s&&c(e,l)&&(h[r]=1,g++)}this._applySelMask(e,h),l+=g}this._selectionCount=l,this.draw(),t.dispatch!==!1&&this._dispatchChartEvent(`select`,{total:l,polygon:e,view:this._eventView(`select`)})},_selectLocal(e,t,n,r,i={}){let a=0;for(let i of this.gpuTraces){if(!i._cpu||i.tier===`density`)continue;let o=i._cpu.x,s=i._cpu.y,c=i._cpu.xMeta||i.xMeta,l=i._cpu.yMeta||i.yMeta,u=c.offset,d=c.scale||1,f=l.offset,p=l.scale||1,m=new Float32Array(i.n),h=0;for(let a=0;a<i.n;a++){let i=o[a]/d+u,c=s[a]/p+f;i>=e&&i<=t&&c>=n&&c<=r&&(m[a]=1,h++)}this._applySelMask(i,m),a+=h}this._selectionCount=a,this.draw(),i.dispatch!==!1&&this._dispatchChartEvent(`select`,{total:a,range:{x0:e,x1:t,y0:n,y1:r},view:this._eventView(`select`)})},_applySelMask(e,t){let n=this.gl;e.selBuf||=n.createBuffer(),n.bindBuffer(n.ARRAY_BUFFER,e.selBuf),n.bufferData(n.ARRAY_BUFFER,t,n.STATIC_DRAW),e.selActive=!0},_clearSelection(e={}){this._clearLassoOverlay(),e.dispatch!==!1&&this._stateSelection!==null&&this._stateSelection!==void 0&&this._historyRecord({source:e.source,interactionId:e.interactionId,history:e.history}),this._stateSelection=null;for(let e of this.gpuTraces)e.selActive=!1,e.drill&&(e.drill.selActive=!1);this._selectionCount=0,this._lastBrush=null,e.broadcast!==!1&&this._broadcastLinkedSelection({clear:!0}),e.dispatch!==!1&&this._interactionFlag(`select`,!0)&&(this.comm&&this.comm.send({type:`select_clear`}),this._dispatchChartEvent(`select`,{total:0,view:this._eventView(`select_clear`)}))},_clampModebar(e,t){let n=this._modebar;if(!n||!this.root)return;let r=e??(Number.parseFloat(n.style.left)||0),i=t??(Number.parseFloat(n.style.top)||0),a=Math.max(0,this.root.clientWidth-n.offsetWidth),o=Math.max(0,this.root.clientHeight-n.offsetHeight);n.style.left=`${Math.max(0,Math.min(a,r))}px`,n.style.top=`${Math.max(0,Math.min(o,i))}px`},_buildModebar(e){if(this.spec.show_modebar===!1)return;let t=document.createElement(`div`);t.style.cssText=`position:absolute;top:${this.plot.y+4}px;left:${this.plot.x+4}px;z-index:6;display:flex;opacity:0;pointer-events:none;transition:opacity .15s;`,this._applySlot(t,`modebar`),t.setAttribute(`role`,`toolbar`),t.setAttribute(`aria-label`,`Chart controls`),this._modebar=t,this._modeBtns={},this._modebarMoved=!1;let n=()=>{},r=()=>{},i=()=>{},a=e=>{let n=e||this._modebarDragging||t.contains(document.activeElement);t.style.opacity=n?`1`:`0`,t.style.pointerEvents=n?`auto`:`none`};this._listen(e,`pointerenter`,()=>a(!0)),this._listen(e,`pointerleave`,()=>{a(!1),n(!1),r(!1),i(!1)}),this._listen(t,`focusin`,()=>a(!0)),this._listen(t,`focusout`,n=>{!t.contains(n.relatedTarget)&&!e.matches(`:hover`)&&a(!1)});let o=document.createElement(`button`);o.type=`button`,o.title=`Click for toolbar options; drag to move`,o.setAttribute(`aria-label`,`Toolbar options`),o.setAttribute(`aria-haspopup`,`menu`),o.setAttribute(`aria-expanded`,`false`),o.dataset.xyModebarDragHandle=``,o.dataset.xyModebarExport=``,o.dataset.xyModebarExportTrigger=``,o.innerHTML=this._icon(`drag`),o.style.cssText=`display:flex;align-items:center;justify-content:center;pointer-events:auto;touch-action:none;`,this._applySlot(o,`modebar_button`),t.appendChild(o);let s=null,c=0;this._listen(o,`pointerdown`,e=>{if(e.pointerType===`mouse`&&e.button!==0)return;e.stopPropagation();let n=t.getBoundingClientRect();s={pointerId:e.pointerId,startX:e.clientX,startY:e.clientY,dx:e.clientX-n.left,dy:e.clientY-n.top,moved:!1};try{o.setPointerCapture(e.pointerId)}catch{}a(!0)}),this._listen(o,`pointermove`,a=>{if(!s||a.pointerId!==s.pointerId)return;let o=Math.hypot(a.clientX-s.startX,a.clientY-s.startY);if(!s.moved){if(o<6)return;s.moved=!0,this._modebarDragging=!0,this._modebarMoved=!0,t.style.transition=`none`,n(!1),r(!1),i(!1)}let c=e.getBoundingClientRect(),l=a.clientX-c.left-s.dx,u=a.clientY-c.top-s.dy;this._clampModebar(l,u)});let l=n=>{if(!s||n.pointerId!==s.pointerId)return;let r=s.moved,i=n.type===`pointercancel`;s=null,this._modebarDragging=!1,t.style.transition=`opacity .15s`,a(e.matches(`:hover`)),(r||i)&&(c=performance.now()+100)};this._listen(o,`pointerup`,l),this._listen(o,`pointercancel`,l),this._listen(o,`click`,e=>{if(e.stopPropagation(),performance.now()<=c){c=0;return}i(!this._exportMenuOpen)});let u=(e,n,r,i)=>{let a=document.createElement(`button`);return a.type=`button`,a.title=n,a.setAttribute(`aria-label`,n),i&&a.setAttribute(`aria-pressed`,`false`),a.innerHTML=this._icon(e),a.style.cssText=`display:flex;align-items:center;justify-content:center;pointer-events:auto;`,this._applySlot(a,`modebar_button`),this._listen(a,`pointerdown`,e=>e.stopPropagation()),this._listen(a,`click`,e=>{e.stopPropagation(),r()}),t.appendChild(a),i&&(this._modeBtns[i]=a),a},d=this._interactionFlag(`navigation`,!0),f=d&&this._interactionFlag(`pan`,!0),p=d&&this._interactionFlag(`zoom`,!0),m=p&&this._interactionFlag(`zoom_buttons`,!0),h=p&&this._interactionFlag(`box_zoom`,!0),g=d&&this._resetAxisPolicy().length>0,_=m||h||g,v=null,y=null;if(this._zoomMenuButton=null,this._zoomMenuLabel=null,_){v=u(`zoommenu`,`Zoom controls`,()=>{n(!this._zoomMenuOpen)}),this._zoomMenuButton=v,v.dataset.xyModebarMenuTrigger=``,v.replaceChildren();let e=document.createElement(`span`);e.dataset.xyModebarZoomPercent=``,e.textContent=`100%`,v.appendChild(e),y=document.createElement(`span`),y.dataset.xyModebarMenuIndicator=``,y.innerHTML=this._icon(`chevrondown`),v.appendChild(y),this._zoomMenuLabel=e,v.setAttribute(`aria-haspopup`,`menu`),v.setAttribute(`aria-expanded`,`false`)}let b=this._interactionFlag(`brush`,!0)&&this._interactionFlag(`select`,!0),x=null,S=null,C=null;b&&(x=u(`select`,`Selection controls`,()=>{r(!this._selectMenuOpen)}),x.dataset.xyModebarSelect=``,x.dataset.xyModebarSelectTrigger=``,x.setAttribute(`aria-haspopup`,`menu`),x.setAttribute(`aria-expanded`,`false`),x.replaceChildren(),C=document.createElement(`span`),C.dataset.xyModebarSelectIcon=``,C.innerHTML=this._icon(`select`),x.appendChild(C),S=document.createElement(`span`),S.dataset.xyModebarMenuIndicator=``,S.innerHTML=this._icon(`chevrondown`),x.appendChild(S),this._selectMenuButton=x,this._selectMenuIcon=C),f&&u(`pan`,`Pan`,()=>this._setDragMode(`pan`),`pan`),d&&this._historyEnabled()&&(this._historyBackBtn=u(`historyback`,`Back to previous view`,()=>this._historyBack()),this._historyBackBtn.dataset.xyModebarHistory=`back`,this._historyForwardBtn=u(`historyforward`,`Forward to next view`,()=>this._historyForward()),this._historyForwardBtn.dataset.xyModebarHistory=`forward`,this._updateHistoryButtons());let w=null;_&&(w=document.createElement(`div`),w.dataset.xyModebarMenu=``,w.setAttribute(`role`,`menu`),w.setAttribute(`aria-label`,`Zoom controls`),w.style.cssText=`position:absolute;display:none;flex-direction:column;z-index:7;pointer-events:auto;`,t.appendChild(w));let T=[],E=(e,t,r,i,a=!1)=>{let o=document.createElement(`button`);o.type=`button`,o.tabIndex=-1,o.dataset.xyModebarMenuItem=e,a&&(o.dataset.xySeparator=``),o.setAttribute(`role`,`menuitem`),o.style.cssText=`display:flex;align-items:center;pointer-events:auto;`,this._applySlot(o,`modebar_button`);let s=document.createElement(`span`);s.dataset.xyModebarMenuIcon=``,s.innerHTML=this._icon(e),o.appendChild(s);let c=document.createElement(`span`);return c.textContent=t,o.appendChild(c),this._listen(o,`pointerdown`,e=>e.stopPropagation()),this._listen(o,`click`,e=>{e.stopPropagation(),n(!1,!0),r()}),w.appendChild(o),T.push(o),i&&(this._modeBtns[i]=o),o};_&&(m&&(E(`zoomin`,this._actionLabel(`Zoom In`,this._axisPolicy(`zoom_axes`)),()=>this._zoomBy(.5,!0,`zoom_in`)),E(`zoomout`,this._actionLabel(`Zoom Out`,this._axisPolicy(`zoom_axes`)),()=>this._zoomBy(2,!0,`zoom_out`))),h&&E(`zoom`,this._actionLabel(`Box Zoom`,this._axisPolicy(`zoom_axes`)),()=>this._setDragMode(`zoom`),`zoom`),g&&E(`reset`,this._actionLabel(`Reset View`,this._resetAxisPolicy()),()=>this._resetView(!0,`reset`),null,m||h));let D=document.createElement(`div`);D.dataset.xyModebarMenu=``,D.dataset.xyModebarSelectMenu=``,D.setAttribute(`role`,`menu`),D.setAttribute(`aria-label`,`Selection controls`),D.style.cssText=`position:absolute;display:none;flex-direction:column;z-index:7;pointer-events:auto;`,t.appendChild(D);let O=[],k=(e,t,n)=>{let i=document.createElement(`button`);i.type=`button`,i.tabIndex=-1,i.dataset.xyModebarMenuItem=e,i.dataset.xyModebarSelectItem=n,i.setAttribute(`role`,`menuitem`),i.style.cssText=`display:flex;align-items:center;pointer-events:auto;`,this._applySlot(i,`modebar_button`);let a=document.createElement(`span`);a.dataset.xyModebarMenuIcon=``,a.innerHTML=this._icon(e),i.appendChild(a);let o=document.createElement(`span`);o.textContent=t,i.appendChild(o),this._listen(i,`pointerdown`,e=>e.stopPropagation()),this._listen(i,`click`,e=>{e.stopPropagation(),r(!1,!0),this._setDragMode(n)}),D.appendChild(i),O.push(i),this._modeBtns[n]=i};b&&(k(`select`,`Box Select`,`select`),k(`lasso`,`Lasso Select`,`select-lasso`),k(`selectx`,`X Range`,`select-x`),k(`selecty`,`Y Range`,`select-y`));let A=document.createElement(`div`);A.dataset.xyModebarMenu=``,A.dataset.xyModebarExportMenu=``,A.setAttribute(`role`,`menu`),A.setAttribute(`aria-label`,`Toolbar options`),A.style.cssText=`position:absolute;display:none;flex-direction:column;z-index:7;pointer-events:auto;`,t.appendChild(A);let j=[],ee=(e,t,n,r=!1)=>{let a=document.createElement(`button`);a.type=`button`,a.tabIndex=-1,a.dataset.xyModebarMenuItem=e,a.dataset.xyModebarExportItem=e,r&&(a.dataset.xySeparator=``),a.setAttribute(`role`,`menuitem`),a.style.cssText=`display:flex;align-items:center;pointer-events:auto;`,this._applySlot(a,`modebar_button`);let o=document.createElement(`span`);o.dataset.xyModebarMenuIcon=``,o.innerHTML=this._icon(e),a.appendChild(o);let s=document.createElement(`span`);return s.textContent=t,a.appendChild(s),this._listen(a,`pointerdown`,e=>e.stopPropagation()),this._listen(a,`click`,e=>{e.stopPropagation(),i(!1,!0),Promise.resolve(n()).catch(e=>console.error(`xy: ${t} failed`,e))}),A.appendChild(a),j.push(a),a},M={png:[`Export PNG`,()=>this._exportRaster(`png`)],jpeg:[`Export JPEG`,()=>this._exportRaster(`jpeg`)],webp:[`Export WebP`,()=>this._exportRaster(`webp`)],svg:[`Export SVG`,()=>this._exportSvg()],csv:[`Export CSV`,()=>this._exportCsv()]},te=Array.isArray(this._exportConfig().formats)?this._exportConfig().formats:[`png`,`svg`,`csv`];for(let e of te){let t=M[e];t&&ee(e,t[0],t[1])}v&&(n=(n,a=!1)=>{let o=!!n;if(o&&(r(!1),i(!1)),this._zoomMenuOpen=o,v.setAttribute(`aria-expanded`,String(o)),!o){w.style.display=`none`,y.style.transform=`none`,a&&v.focus();return}w.style.display=`flex`,w.style.visibility=`hidden`;let s=e.getBoundingClientRect(),c=t.getBoundingClientRect(),l=c.left-s.left,u=c.top-s.top,d=t.offsetHeight+6,f=-w.offsetHeight-6,p=c.bottom+6+w.offsetHeight<=s.bottom?d:f;y.style.transform=p===f?`rotate(180deg)`:`none`;let m=e.clientWidth-l-w.offsetWidth,h=e.clientHeight-u-w.offsetHeight;w.style.left=`${Math.max(-l,Math.min(m,v.offsetLeft))}px`,w.style.top=`${Math.max(-u,Math.min(h,p))}px`,w.style.visibility=`visible`}),r=(r,a=!1)=>{if(!x)return;let o=!!r;if(o&&(n(!1),i(!1)),this._selectMenuOpen=o,x.setAttribute(`aria-expanded`,String(o)),!o){D.style.display=`none`,S.style.transform=`none`,a&&x.focus();return}D.style.display=`flex`,D.style.visibility=`hidden`;let s=e.getBoundingClientRect(),c=t.getBoundingClientRect(),l=c.left-s.left,u=c.top-s.top,d=t.offsetHeight+6,f=-D.offsetHeight-6,p=c.bottom+6+D.offsetHeight<=s.bottom?d:f;S.style.transform=p===f?`rotate(180deg)`:`none`;let m=e.clientWidth-l-D.offsetWidth,h=e.clientHeight-u-D.offsetHeight;D.style.left=`${Math.max(-l,Math.min(m,x.offsetLeft))}px`,D.style.top=`${Math.max(-u,Math.min(h,p))}px`,D.style.visibility=`visible`},i=(i,a=!1)=>{let s=!!i&&j.length>0;if(s&&(n(!1),r(!1)),this._exportMenuOpen=s,o.setAttribute(`aria-expanded`,String(s)),!s){A.style.display=`none`,a&&o.focus();return}A.style.display=`flex`,A.style.visibility=`hidden`;let c=e.getBoundingClientRect(),l=t.getBoundingClientRect(),u=l.left-c.left,d=l.top-c.top,f=t.offsetHeight+6,p=-A.offsetHeight-6,m=l.bottom+6+A.offsetHeight<=c.bottom?f:p,h=e.clientWidth-u-A.offsetWidth,g=e.clientHeight-d-A.offsetHeight;A.style.left=`${Math.max(-u,Math.min(h,o.offsetLeft))}px`,A.style.top=`${Math.max(-d,Math.min(g,m))}px`,A.style.visibility=`visible`},this._closeModebarMenu=()=>{n(!1),r(!1),i(!1)},this._syncModebarSelect=()=>{if(!x)return;let e=!!this._pickable;e||(r(!1),this.dragMode.startsWith(`select`)&&this._setDragMode(`pan`)),x.style.display=e?`flex`:`none`},this._syncModebarSelect(),this._listen(document,`pointerdown`,e=>{this._zoomMenuOpen&&!t.contains(e.target)&&n(!1),this._selectMenuOpen&&!t.contains(e.target)&&r(!1),this._exportMenuOpen&&!t.contains(e.target)&&i(!1)}),v&&(this._listen(v,`keydown`,e=>{if(e.key!==`ArrowDown`&&e.key!==`ArrowUp`)return;e.preventDefault(),e.stopPropagation(),n(!0);let t=e.key===`ArrowDown`?0:T.length-1;T[t].focus()}),this._listen(w,`keydown`,e=>{if(e.key===`Escape`){e.preventDefault(),e.stopPropagation(),n(!1,!0);return}if(![`ArrowDown`,`ArrowUp`,`Home`,`End`].includes(e.key))return;e.preventDefault();let t=T.indexOf(document.activeElement),r=e.key===`Home`?0:e.key===`End`?T.length-1:t;e.key===`ArrowDown`&&(r=(t+1)%T.length),e.key===`ArrowUp`&&(r=(t-1+T.length)%T.length),T[r].focus()})),x&&(this._listen(x,`keydown`,e=>{if(e.key!==`ArrowDown`&&e.key!==`ArrowUp`)return;e.preventDefault(),e.stopPropagation(),r(!0);let t=e.key===`ArrowDown`?0:O.length-1;O[t].focus()}),this._listen(D,`keydown`,e=>{if(e.key===`Escape`){e.preventDefault(),e.stopPropagation(),r(!1,!0);return}if(![`ArrowDown`,`ArrowUp`,`Home`,`End`].includes(e.key))return;e.preventDefault();let t=O.indexOf(document.activeElement),n=e.key===`Home`?0:e.key===`End`?O.length-1:t;e.key===`ArrowDown`&&(n=(t+1)%O.length),e.key===`ArrowUp`&&(n=(t-1+O.length)%O.length),O[n].focus()})),this._listen(o,`keydown`,e=>{if(e.key!==`ArrowDown`&&e.key!==`ArrowUp`||!j.length)return;e.preventDefault(),e.stopPropagation(),i(!0);let t=e.key===`ArrowDown`?0:j.length-1;j[t].focus()}),this._listen(A,`keydown`,e=>{if(e.key===`Escape`){e.preventDefault(),e.stopPropagation(),i(!1,!0);return}if(![`ArrowDown`,`ArrowUp`,`Home`,`End`].includes(e.key))return;e.preventDefault();let t=j.indexOf(document.activeElement),n=e.key===`Home`?0:e.key===`End`?j.length-1:t;e.key===`ArrowDown`&&(n=(t+1)%j.length),e.key===`ArrowUp`&&(n=(t-1+j.length)%j.length),j[n].focus()}),e.appendChild(t),this._fitModebar(),a(e.matches(`:hover`)),this._setDragMode(this.dragMode)},_fitModebar(){let e=this._modebar;if(e){if(this._closeModebarMenu?.(),this._modebarMoved||(e.style.top=`${this.plot.y+4}px`,e.style.left=`${this.plot.x+4}px`),e.style.display=`flex`,!(e.offsetWidth+8<=this.plot.w&&e.offsetHeight+8<=this.plot.h)){e.style.display=`none`;return}this._clampModebar()}},_setDragMode(e){this.dragMode=e,this.canvas&&(this.canvas.dataset.xyDragmode=e);for(let[t,n]of Object.entries(this._modeBtns||{}))n.classList.toggle(`xy-active`,t===e),n.setAttribute(`aria-pressed`,String(t===e));this._zoomMenuButton?.classList.toggle(`xy-active`,e===`zoom`),this._selectMenuButton?.classList.toggle(`xy-active`,e.startsWith(`select`));let t={select:[`select`,`Box Select`],"select-lasso":[`lasso`,`Lasso Select`],"select-x":[`selectx`,`X Range`],"select-y":[`selecty`,`Y Range`]}[e];if(t&&this._selectMenuButton&&this._selectMenuIcon){let[e,n]=t;this._selectMenuIcon.innerHTML=this._icon(e),this._selectMenuButton.title=`Selection controls: ${n}`,this._selectMenuButton.setAttribute(`aria-label`,`Selection controls: ${n}`)}},_actionLabel(e,t){let n=Array.isArray(t)?t:[...t||[]];return n.length?`${e} on ${n.join(` and `)} ${n.length===1?`axis`:`axes`}`:e},_updateZoomMenuLabel(){if(!this._zoomMenuLabel||!this.view||!this.view0)return;let e=(e,t,n,r,i)=>{let a=this._axis(e),o=Math.abs(this._axisCoord(a,n)-this._axisCoord(a,t)),s=Math.abs(this._axisCoord(a,i)-this._axisCoord(a,r));return Number.isFinite(o)&&o>0&&Number.isFinite(s)&&s>0?s/o*100:null},t=[...this._zoomAxes()].map(t=>{let[n,r]=this._axisRange(t),[i,a]=this._axisRange(t,this.view0);return[t,e(t,n,r,i,a)]}).filter(e=>e[1]!==null),n=t[0]?.[1]??100,r=Math.round(n),i=n<1?`<1%`:`${r}%`,a=r>999?`${String(r).slice(0,3)}…%`:i;if(this._zoomMenuLabel.dataset.xyZoomExact===i&&this._zoomMenuLabel.textContent===a)return;this._zoomMenuLabel.textContent=a,this._zoomMenuLabel.dataset.xyZoomExact=i;let o=t.map(([e,t])=>`${e} ${Math.round(t)}%`).join(`, `);this._zoomMenuButton.title=`Zoom controls (${o||i})`,this._zoomMenuButton.setAttribute(`aria-label`,`Zoom controls, ${o||i}`)},_prefersReducedMotion(){return window.matchMedia?.(`(prefers-reduced-motion: reduce)`)?.matches===!0},_cancelViewAnimation(){this._animRaf&&cancelAnimationFrame(this._animRaf),this._animRaf=null,this._viewAnim=null},_setView(e,t={}){if(this._destroyed)return[];let n=this._clampView(this._viewFrom(e),{anchors:t.anchors}),r=this._axisIds().filter(e=>{let t=this._axisRange(e),r=this._axisRange(e,n);return t[0]!==r[0]||t[1]!==r[1]});if(!r.length)return[];this._viewAnim||this._historyRecord({source:t.source||`programmatic`,interactionId:t.interactionId,history:t.history});let i=t.animate===!0&&!this._prefersReducedMotion(),a=t.duration||180;if(!i||a<=0)return this._cancelViewAnimation(),this.view=n,this.draw(),t.request!==!1&&this._scheduleViewRequest(),this._emitViewChange(t.source||`programmatic`,{axes:r,phase:t.phase||`end`,interactionId:t.interactionId,broadcast:t.broadcast}),r;clearTimeout(this._viewTimer),this.seq+=1;let o=t.request!==!1,s=t.requestDelay??Math.min(55,Math.max(24,a*.35)),c=t.requestMaxWait??130;o&&this._scheduleViewRequest(n,{seq:this.seq,delay:s,maxWait:c});let l=this._now(),u=Math.max(18,a/5);if(this._viewAnim)return Object.assign(this._viewAnim,{target:n,tau:u,changedAxes:[...new Set([...this._viewAnim.changedAxes,...r])],source:t.source||`programmatic`,phase:t.phase||`end`,interactionId:t.interactionId,broadcast:t.broadcast}),r;this._viewAnim={target:n,last:l,tau:u,changedAxes:r,source:t.source||`programmatic`,phase:t.phase||`end`,interactionId:t.interactionId,broadcast:t.broadcast};let d=(e,t,n)=>e+(t-e)*n,f=e=>Math.max(...this._axisIds().map(t=>{let[n,r]=this._axisRange(t,e);return Math.abs(r-n)}),1e-12),p=(e,t)=>{let n=f(t)*1e-4;return Math.max(...this._axisIds().flatMap(n=>{let r=this._axisRange(n,e),i=this._axisRange(n,t);return[Math.abs(r[0]-i[0]),Math.abs(r[1]-i[1])]}))<=n},m=e=>{if(this._destroyed){this._animRaf=null;return}let t=this._viewAnim;if(!t){this._animRaf=null;return}let n=Math.max(0,Math.min(64,e-t.last));t.last=e;let r=1-Math.exp(-n/t.tau),i=p(this.view,t.target)?1:r,a={};for(let e of this._axisIds()){let n=this._axisRange(e),r=this._axisRange(e,t.target);a[e]=[d(n[0],r[0],i),d(n[1],r[1],i)]}this.view=this._copyView({ranges:a}),i<1?(this.draw(),this._animRaf=requestAnimationFrame(m)):(this._animRaf=null,this._viewAnim=null,this.view=t.target,this._lastLabelDraw=null,this.draw(),this._emitViewChange(t.source,{axes:t.changedAxes,phase:t.phase,interactionId:t.interactionId,broadcast:t.broadcast}))};return this._animRaf=requestAnimationFrame(m),r},_zoomLimitForAxis(e){if(!this._axisPolicy(`zoom_axes`).includes(e))return[null,null];let t=this.interaction?.zoom_limits;if(t&&typeof t==`object`&&!Array.isArray(t)){let n=t[e];if(Array.isArray(n)&&n.length===2)return n}return[1,null]},_clampAxisRange(e,t,n,r=.5){let i=this._axis(e),a=this._axisCoord(i,t),o=this._axisCoord(i,n);if(![a,o].every(Number.isFinite)||a===o)return this._axisRange(e,this.view0);let s=this.view0?.ranges?.[e];if(s){let t=this._axisCoord(i,s[0]),n=this._axisCoord(i,s[1]),c=Math.abs(n-t),[l,u]=this._zoomLimitForAxis(e),d=Number(l),f=Number(u),p=Number.isFinite(d)&&d>0?c/d:1/0,m=Number.isFinite(f)&&f>0?c/f:0,h=Math.abs(o-a),g=Math.max(m,Math.min(p,h));if(Number.isFinite(g)&&g>0&&g!==h){let e=o<a?-1:1,t=a+r*(o-a);a=t-r*g*e,o=t+(1-r)*g*e}}let c=-1/0,l=1/0;if(Array.isArray(i.bounds)&&i.bounds.length===2){let e=this._axisCoord(i,i.bounds[0]),r=this._axisCoord(i,i.bounds[1]);if(![a,o,e,r].every(Number.isFinite)||e===r)return[t,n];c=Math.min(e,r),l=Math.max(e,r)}if(s&&this._axisContained(e)){let e=this._axisCoord(i,s[0]),t=this._axisCoord(i,s[1]);[e,t].every(Number.isFinite)&&e!==t&&(c=Math.max(c,Math.min(e,t)),l=Math.min(l,Math.max(e,t)))}if(!Number.isFinite(c)||!Number.isFinite(l)||l<=c)return[this._axisValue(i,a),this._axisValue(i,o)];let u=o<a,d=Math.min(a,o),f=Math.max(a,o);if(f-d>=l-c)d=c,f=l;else{let e=Math.max(c-d,Math.min(l-f,0));d+=e,f+=e}let p=u?f:d,m=u?d:f;return[this._axisValue(i,p),this._axisValue(i,m)]},_clampView(e,t={}){let n=this._viewFrom(e,this.view0),r={};for(let e of this._axisIds()){let[i,a]=this._axisRange(e,n);r[e]=this._clampAxisRange(e,i,a,t.anchors?.[e]??.5)}return this._copyView({ranges:r})},_zoomAxes(){return new Set(this._axisPolicy(`zoom_axes`))},_zoomBy(e,t=!1,n=e<1?`zoom_in`:`zoom_out`){let r=this._viewAnim?this._viewAnim.target:this.view,i=this._zoomAxes(),a=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e,r)]]));for(let t of i){let[n,r]=a[t],i=this._zoomAxisRange(t,n,r,e,.5);i&&(a[t]=i)}this._setView({ranges:a},{animate:t,source:n,phase:`end`,interactionId:++this._interactionSeq})},_zoomAxisRange(e,t,n,r,i){let a=this._axis(e),o=this._axisCoord(a,t),s=this._axisCoord(a,n);if(![o,s].every(Number.isFinite)||o===s)return null;let c=o+i*(s-o);if(r<1){let e=Math.max(Math.abs(c),1e-30)*1e-12;if(Math.abs((s-o)*r)<e)return null}let l=c-(c-o)*r,u=c+(s-c)*r;if(r>1&&this.view0){let t=this._axisRange(e,this.view0),n=this._axisCoord(a,t[0]),r=this._axisCoord(a,t[1]),o=Math.abs(r-n);if([n,r].every(Number.isFinite)&&o>0&&Math.abs(u-l)>o){let e=o*Math.sign(u-l);return[this._axisValue(a,c-i*e),this._axisValue(a,c+(1-i)*e)]}}return[this._axisValue(a,l),this._axisValue(a,u)]},_zoomAt(e,t,n,r=!1,i=120,a={}){let o=this._viewAnim?this._viewAnim.target:this.view,s=Array.isArray(a.axes)?new Set(a.axes.filter(e=>this._zoomAxes().has(e))):this._zoomAxes(),c=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e,o)]])),l={};for(let r of s){let i=this._axisDim(r)===`x`?t:n,[a,o]=c[r],s=this._zoomAxisRange(r,a,o,e,i);s&&(c[r]=s),l[r]=i}return this._setView({ranges:c},{animate:r,duration:i,anchors:l,source:a.source||`wheel_zoom`,phase:a.phase||`update`,interactionId:a.interactionId})},_queueWheelZoom(e,t,n,r=null){if(!Number.isFinite(e)||e<=0)return;clearTimeout(this._wheelZoomEndTimer),this._wheelZoomEndTimer=null;let i=Array.isArray(r)?r.join(`,`):``;if(this._wheelGesture&&this._wheelGesture.scopeKey!==i){let e=this._wheelGesture;this._wheelGesture=null,e.axes.size&&this._emitViewChange(`wheel_zoom`,{axes:[...e.axes],phase:`end`,interactionId:e.interactionId})}this._wheelGesture||={interactionId:++this._interactionSeq,axes:new Set,scopeKey:i},this._pendingWheelZoom||={factor:1,fx:t,fy:n,interactionId:this._wheelGesture.interactionId,axes:[],axesScope:r},this._pendingWheelZoom.factor*=e,this._pendingWheelZoom.fx=t,this._pendingWheelZoom.fy=n,this._pendingWheelZoom.axesScope=r,!this._wheelZoomRaf&&(this._wheelZoomRaf=requestAnimationFrame(()=>{this._wheelZoomRaf=null;let e=this._pendingWheelZoom;if(this._pendingWheelZoom=null,!(!e||this._destroyed)){e.axes=this._zoomAt(e.factor,e.fx,e.fy,!1,120,{source:`wheel_zoom`,phase:`update`,interactionId:e.interactionId,axes:e.axesScope||void 0})||[];for(let t of e.axes)this._wheelGesture?.axes.add(t);clearTimeout(this._wheelZoomEndTimer),this._wheelZoomEndTimer=setTimeout(()=>{let e=this._wheelGesture;this._wheelGesture=null,!(this._destroyed||!e||!e.axes.size)&&this._emitViewChange(`wheel_zoom`,{axes:[...e.axes],phase:`end`,interactionId:e.interactionId})},90)}}))},_zoomToBox(e,t,n=!1,r={}){let i=this._zoomAxes(),a={};for(let n of[`x`,`y`]){let r=this._axis(n),[i,o]=this._axisRange(n),s=this._axisCoord(r,i),c=this._axisCoord(r,o),l=this._axisCoord(r,e[n===`x`?0:1]),u=this._axisCoord(r,t[n===`x`?0:1]);if(![s,c,l,u].every(Number.isFinite)||s===c)return[];a[n]=[(l-s)/(c-s),(u-s)/(c-s)]}let o=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e)]])),s={};for(let e of i){let t=this._axis(e),[n,r]=o[e],i=this._axisCoord(t,n),c=this._axisCoord(t,r),[l,u]=a[this._axisDim(e)],d=i+l*(c-i),f=i+u*(c-i),p=Math.max(Math.abs(d),Math.abs(f),1e-30)*1e-12;if(!Number.isFinite(d)||!Number.isFinite(f)||Math.abs(f-d)<p)continue;let m=c<i,h=Math.min(d,f),g=Math.max(d,f);o[e]=[this._axisValue(t,m?g:h),this._axisValue(t,m?h:g)],s[e]=.5}return this._setView({ranges:o},{animate:n,anchors:s,source:r.source||`box_zoom`,phase:r.phase||`end`,interactionId:r.interactionId})},_resetView(e=!0,t=`reset`,n=null){let r=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e)]]));for(let e of n||this._resetAxisPolicy())r[e]=[...this._axisRange(e,this.view0)];return this._setView({ranges:r},{animate:e,source:t,phase:`end`,interactionId:++this._interactionSeq})},_exportConfig(){let e=this.spec&&this.spec.export;return e&&typeof e==`object`?e:{}},_exportFilename(e){let t=this._exportConfig().filename;return typeof t==`string`&&t?`${t}.${e}`:`${String(this.spec.title||`xy-chart`).trim().toLowerCase().replace(/[^a-z0-9]+/g,`-`).replace(/^-+|-+$/g,``)||`xy-chart`}.${e}`},_downloadExport(e,t){let n=URL.createObjectURL(e),r=document.createElement(`a`);r.href=n,r.download=t,r.style.display=`none`,document.body.appendChild(r),r.click(),r.remove(),setTimeout(()=>URL.revokeObjectURL(n),0)},_exportSvgMarkup(){this._drawNow?.(),this.gl?.finish?.();let e=this.size.w,t=this.size.h,n=this.root.cloneNode(!0);n.style.width=`${e}px`,n.style.height=`${t}px`,n.style.margin=`0`,n.setAttribute(`xmlns`,`http://www.w3.org/1999/xhtml`);let r=getComputedStyle(this.root),i=[`color`,`font-family`,`font-size`,`font-style`,`font-weight`,`letter-spacing`,`line-height`],a=[`--chart-bg`,`--chart-text`,`--chart-grid`,`--chart-axis`,`--chart-tooltip-bg`,`--chart-tooltip-text`,`--chart-legend-bg`,`--chart-badge-bg`,`--chart-badge-text`,`--chart-modebar-bg`,`--chart-modebar-active`,`--chart-selection`,`--chart-selection-fill`,`--chart-zoom-selection`,`--chart-zoom-selection-fill`,`--chart-crosshair`,`--chart-annotation-text`,`--chart-cursor`,`--chart-cursor-pan`];for(let e=0;e<r.length;e++){let t=r.item(e);if(!t.startsWith(`--`))continue;let i=r.getPropertyValue(t).trim();i&&n.style.setProperty(t,i)}for(let e of[...i,...a]){let t=r.getPropertyValue(e).trim();t&&n.style.setProperty(e,t)}let o=[...this.root.querySelectorAll(`canvas`)],s=[...n.querySelectorAll(`canvas`)];for(let e=0;e<s.length;e++){let t=o[e],n=s[e];if(!t||!n)continue;let r=document.createElement(`img`);r.setAttribute(`src`,t.toDataURL(`image/png`)),r.setAttribute(`alt`,``),r.setAttribute(`style`,n.getAttribute(`style`)||``),r.setAttribute(`width`,String(t.clientWidth||t.width)),r.setAttribute(`height`,String(t.clientHeight||t.height));for(let e of n.attributes)e.name.startsWith(`data-`)&&r.setAttribute(e.name,e.value);n.replaceWith(r)}n.querySelectorAll(`[data-xy-slot="modebar"],[data-xy-slot="tooltip"],[data-xy-slot="selection"],[data-xy-selection-lasso-overlay],[data-xy-slot="crosshair_x"],[data-xy-slot="crosshair_y"]`).forEach(e=>e.remove());let c=document.createElement(`style`);return c.textContent=x,n.prepend(c),`<svg xmlns="http://www.w3.org/2000/svg" width="${e}" height="${t}" viewBox="0 0 ${e} ${t}"><foreignObject width="100%" height="100%">${new XMLSerializer().serializeToString(n)}</foreignObject></svg>`},_exportSvg(){let e=this._exportSvgMarkup();this._downloadExport(new Blob([e],{type:`image/svg+xml;charset=utf-8`}),this._exportFilename(`svg`))},_exportPng(){return this._exportRaster(`png`)},_exportRaster(e){let t=this._exportSvgMarkup(),n=`data:image/svg+xml;charset=utf-8,${encodeURIComponent(t)}`,r=new Image,i=this._exportConfig(),a={png:`image/png`,jpeg:`image/jpeg`,webp:`image/webp`}[e];return a?new Promise((t,o)=>{r.onload=()=>{let n=Number.isFinite(i.scale)&&i.scale>0?i.scale:Math.max(1,window.devicePixelRatio||1),s=document.createElement(`canvas`);s.width=Math.round(this.size.w*n),s.height=Math.round(this.size.h*n);let c=s.getContext(`2d`),l=typeof i.background==`string`&&i.background!==`auto`?i.background:null,u=l===`transparent`||l===`none`;e===`jpeg`?(c.fillStyle=l&&!u?l:`#ffffff`,c.fillRect(0,0,s.width,s.height)):l&&!u&&(c.fillStyle=l,c.fillRect(0,0,s.width,s.height)),c.scale(n,n),c.drawImage(r,0,0,this.size.w,this.size.h);let 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o=0;o<n._cpuHeatmap.grid.length;o++){let s=Math.floor(o/a.w),c=o%a.w,l=a.xRange[0]+(c+.5)*((a.xRange[1]-a.xRange[0])/a.w),u=a.yRange[0]+(s+.5)*((a.yRange[1]-a.yRange[0])/a.h),d=this._denormalizeUnit(n._cpuHeatmap.grid[o],r.color?.domain);e.push([...i,o,t(l),t(u),``,``,``,``,t(d)])}continue}let a=n._cpu;if(!a?.x||!a?.y)continue;let o=Math.min(a.x.length,a.y.length,n.n||1/0);for(let r=0;r<o;r++)e.push([...i,r,t(this._decodeValue(a.x,a.xMeta||n.xMeta,r)),t(this._decodeValue(a.y,a.yMeta||n.yMeta,r)),``,``,``,``,``])}let n=e=>{let t=String(e??``),n=t.split(`"`).join(`""`);return t.includes(`,`)||t.includes(`"`)||t.includes(`\r`)||t.includes(`
+`)?`"${n}"`:t};return e.map(e=>e.map(n).join(`,`)).join(`\r
+`)+`\r
+`},_exportCsv(){this._downloadExport(new Blob([this._exportCsvText()],{type:`text/csv;charset=utf-8`}),this._exportFilename(`csv`))},_icon(e){let t=e=>`<svg width="15" height="15" viewBox="0 0 20 20" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round">${e}</svg>`;switch(e){case`zoomin`:return t(`<circle cx="8.5" cy="8.5" r="5.5"/><path d="M12.5 12.5 L17 17"/><path d="M8.5 6 V11 M6 8.5 H11"/>`);case`zoomout`:return t(`<circle cx="8.5" cy="8.5" r="5.5"/><path d="M12.5 12.5 L17 17"/><path d="M6 8.5 H11"/>`);case`pan`:return t(`<path d="M10 3 V17 M3 10 H17"/><path d="M10 3 L8 5 M10 3 L12 5"/><path d="M10 17 L8 15 M10 17 L12 15"/><path d="M3 10 L5 8 M3 10 L5 12"/><path d="M17 10 L15 8 M17 10 L15 12"/>`);case`zoom`:return t(`<path d="M7 3.5 H3.5 V7 M13 3.5 H16.5 V7 M3.5 13 V16.5 H7 M16.5 13 V16.5 H13"/>`);case`select`:return t(`<path d="M7 4 H4 V7 M13 4 H16 V7 M4 13 V16 H7 M16 13 V16 H13"/><circle cx="7" cy="8" r="1" fill="currentColor" stroke="none"/><circle cx="12.5" cy="9" r="1" fill="currentColor" stroke="none"/><circle cx="9.5" cy="13" r="1" fill="currentColor" stroke="none"/>`);case`lasso`:return t(`<path d="M5 5.5 C7 3 13.5 3.5 15.5 7 C17 10 14 15.5 9 15.5 C4.5 15.5 2.5 11 4 7.5 Z"/><circle cx="5" cy="5.5" r="1" fill="currentColor" stroke="none"/><circle cx="15.5" cy="7" r="1" fill="currentColor" stroke="none"/><circle cx="9" cy="15.5" r="1" fill="currentColor" stroke="none"/>`);case`selectx`:return t(`<path d="M5 4 V16 M15 4 V16 M7 10 H13 M7 10 L9 8 M7 10 L9 12 M13 10 L11 8 M13 10 L11 12"/>`);case`selecty`:return t(`<path d="M4 5 H16 M4 15 H16 M10 7 V13 M10 7 L8 9 M10 7 L12 9 M10 13 L8 11 M10 13 L12 11"/>`);case`chevrondown`:return t(`<path d="M6 8 L10 12 L14 8"/>`);case`collapse`:return t(`<path d="M4 5 H16 M4 15 H16 M7 8 L10 11 L13 8"/>`);case`expand`:return t(`<path d="M4 5 H16 M4 15 H16 M7 12 L10 9 L13 12"/>`);case`png`:return t(`<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/><path d="M7 13 L9 10.5 L11 12 L13.5 9 V15 H7 Z"/>`);case`jpeg`:return t(`<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/><circle cx="8.5" cy="10" r="1.2"/><path d="M7 15 L10 12 L13.5 15 Z"/>`);case`webp`:return t(`<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/><path d="M7 11 C8 10 9 10 10 11 C11 12 12 12 13.5 11"/><path d="M7 14 C8 13 9 13 10 14 C11 15 12 15 13.5 14"/>`);case`svg`:return t(`<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/><path d="M7 13 L9 9 L11 14 L13.5 10"/>`);case`csv`:return t(`<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/><path d="M7 9 H13 M7 12 H13 M7 15 H13 M9 8 V16"/>`);case`reset`:return t(`<path d="M4 10 a6 6 0 1 1 1.8 4.3"/><path d="M4 6 V10 H8"/>`);case`historyback`:return t(`<path d="M13 4 L7 10 L13 16"/>`);case`historyforward`:return t(`<path d="M7 4 L13 10 L7 16"/>`);case`drag`:return t(`<circle cx="7" cy="5" r=".8" fill="currentColor" stroke="none"/><circle cx="13" cy="5" r=".8" fill="currentColor" stroke="none"/><circle cx="7" cy="10" r=".8" fill="currentColor" stroke="none"/><circle cx="13" cy="10" r=".8" fill="currentColor" stroke="none"/><circle cx="7" cy="15" r=".8" fill="currentColor" stroke="none"/><circle cx="13" cy="15" r=".8" fill="currentColor" stroke="none"/>`);default:return t(``)}}});var pt=`
 const DATA = new Map();
 self.onmessage = (e) => {
   const m = e.data;
@@ -1873,8531 +767,4 @@ self.onmessage = (e) => {
     [grid.buffer]
   );
 };
-`;
-function xyCreateRebinWorker() {
-try {
-const url = URL.createObjectURL(
-new Blob([XY_REBIN_WORKER_SRC], { type: "application/javascript" })
-);
-const worker = new Worker(url);
-worker._fcUrl = url;
-return worker;
-} catch (e) {
-return null;
-}
-}
-const MARGIN = { l: 62, r: 14, t: 10, b: 42 };
-const COLORBAR_THICKNESS = 18;
-const COLORBAR_GAP = 24;
-const COMPACT_COLORBAR_GAP = 8;
-let XY_A11Y_ID = 0;
-const XY_SR_ONLY_STYLE =
-"position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;" +
-"clip:rect(0,0,0,0);white-space:nowrap;border:0;";
-const UNITLESS_STYLE_PROPS = new Set([
-"animation-iteration-count",
-"aspect-ratio",
-"border-image-outset",
-"border-image-slice",
-"border-image-width",
-"column-count",
-"flex",
-"flex-grow",
-"flex-shrink",
-"font-weight",
-"line-height",
-"opacity",
-"order",
-"orphans",
-"tab-size",
-"widows",
-"z-index",
-"zoom",
-"fill-opacity",
-"flood-opacity",
-"stop-opacity",
-"stroke-miterlimit",
-"stroke-opacity",
-]);
-const XY_CONTEXT_GOVERNOR = {
-views: new Set(),
-seq: 1,
-hiddenReleaseChannel: null,
-hiddenReleaseQueue: [],
-frameId: null,
-channel: null,
-foreign: null,
-_announcedLive: -1,
-_crossFrameReady: false,
-_rebalanceScheduled: false,
-budget() {
-const v = typeof window !== "undefined" ? window.XY_CONTEXT_BUDGET : null;
-return Number.isFinite(v) && v >= 1 ? Math.floor(v) : 12;
-},
-register(view) {
-this._initCrossFrame();
-this.views.add(view);
-},
-unregister(view) {
-view._ctxPendingReservation = false;
-this.views.delete(view);
-this._announceLive();
-},
-reserve(requester) {
-const live = [];
-let pending = 0;
-for (const view of this.views) {
-if (view !== requester && view.gl && !view._glLost && !view._destroyed) live.push(view);
-if (view !== requester && view._ctxPendingReservation && !view._destroyed) pending += 1;
-}
-const needsReservation = !requester._ctxPendingReservation;
-requester._ctxPendingReservation = true;
-let over = live.length + pending + (needsReservation ? 1 : 0) - this.budget();
-if (over <= 0) return;
-const candidates = live
-.filter((view) => !view._ctxVisible)
-.sort((a, b) => (a._ctxSeenSeq || 0) - (b._ctxSeenSeq || 0));
-for (const view of candidates) {
-if (over <= 0) break;
-if (view._releaseContext()) over -= 1;
-}
-if (over <= 0) return;
-const visible = live
-.filter((view) => view._ctxVisible)
-.sort((a, b) => (a._ctxSeenSeq || 0) - (b._ctxSeenSeq || 0));
-for (const view of visible) {
-if (over <= 0) break;
-if (view._releaseContext()) over -= 1;
-}
-},
-acquired(requester) {
-requester._ctxPendingReservation = false;
-this._rebalance();
-this._announceLive();
-},
-cancel(requester) {
-requester._ctxPendingReservation = false;
-},
-_initCrossFrame() {
-if (this._crossFrameReady) return;
-this._crossFrameReady = true;
-this.foreign = new Map();
-if (typeof BroadcastChannel === "undefined") return;
-try {
-this.frameId = `${Date.now().toString(36)}-${Math.random().toString(36).slice(2)}`;
-this.channel = new BroadcastChannel("xy-webgl-context-governor");
-this.channel.onmessage = (event) => this._onForeignMessage(event.data);
-this._post({ t: "hello", id: this.frameId });
-if (typeof window !== "undefined" && window.addEventListener) {
-window.addEventListener("pagehide", () => this._post({ t: "bye", id: this.frameId }));
-window.addEventListener("pageshow", (event) => {
-if (!event || !event.persisted) return;
-this.foreign.clear();
-this._announcedLive = -1;
-this._post({ t: "hello", id: this.frameId });
-this._announceLive(true);
-});
-}
-} catch (_err) {
-this.channel = null;
-}
-},
-_post(msg) {
-try {
-if (this.channel) this.channel.postMessage(msg);
-} catch (_err) {
-
-}
-},
-_onForeignMessage(msg) {
-if (!msg || !this.foreign || msg.id === this.frameId) return;
-if (msg.t === "live") {
-this.foreign.set(msg.id, msg.n | 0);
-this._rebalance();
-} else if (msg.t === "hello") {
-this._announceLive(true);
-} else if (msg.t === "bye") {
-this.foreign.delete(msg.id);
-}
-},
-localLive() {
-let n = 0;
-for (const view of this.views) {
-if (view.gl && !view._glLost && !view._destroyed) n += 1;
-}
-return n;
-},
-foreignLive() {
-let n = 0;
-if (this.foreign) for (const count of this.foreign.values()) n += count;
-return n;
-},
-_announceLive(force) {
-if (!this.channel) return;
-const n = this.localLive();
-if (!force && n === this._announcedLive) return;
-this._announcedLive = n;
-this._post({ t: "live", id: this.frameId, n });
-},
-_rebalance() {
-if (this.localLive() + this.foreignLive() - this.budget() <= 0) return;
-let target = null;
-for (const view of this.views) {
-if (view.gl && !view._glLost && !view._destroyed && !view._ctxVisible) {
-if (!target || (view._ctxSeenSeq || 0) < (target._ctxSeenSeq || 0)) target = view;
-}
-}
-if (!target || !target._releaseContext()) return;
-if (this.localLive() + this.foreignLive() - this.budget() > 0 && !this._rebalanceScheduled) {
-this._rebalanceScheduled = true;
-setTimeout(() => {
-this._rebalanceScheduled = false;
-this._rebalance();
-}, 0);
-}
-},
-scheduleHiddenReleases() {
-if (this.hiddenReleaseChannel !== null) return;
-this.hiddenReleaseQueue = Array.from(this.views);
-const channel = new MessageChannel();
-this.hiddenReleaseChannel = channel;
-channel.port1.onmessage = () => {
-if (
-typeof document === "undefined" ||
-document.visibilityState !== "hidden"
-) {
-this.cancelHiddenReleases();
-return;
-}
-let view = null;
-while (this.hiddenReleaseQueue.length && !view) {
-const candidate = this.hiddenReleaseQueue.shift();
-if (
-!candidate._destroyed &&
-candidate.gl &&
-!candidate._glLost &&
-!candidate.gl.isContextLost()
-) view = candidate;
-}
-if (!view) {
-this.cancelHiddenReleases();
-return;
-}
-view._releaseContext();
-channel.port2.postMessage(null);
-};
-channel.port2.postMessage(null);
-},
-cancelHiddenReleases() {
-this.hiddenReleaseChannel?.port1.close();
-this.hiddenReleaseChannel?.port2.close();
-this.hiddenReleaseChannel = null;
-this.hiddenReleaseQueue = [];
-},
-};
-function xyInitiallyVisible(el) {
-if (typeof window === "undefined" || !el.getBoundingClientRect) return true;
-const rect = el.getBoundingClientRect();
-if (!rect.width && !rect.height) return false;
-const vh = window.innerHeight || 0;
-const vw = window.innerWidth || 0;
-return (
-rect.bottom > -0.25 * vh && rect.top < 1.25 * vh && rect.right > -0.25 * vw && rect.left < 1.25 * vw
-);
-}
-class ChartView {
-constructor(el, spec, buffer, comm) {
-if (spec.protocol !== PROTOCOL) {
-el.textContent =
-`xy: protocol mismatch (client speaks ${PROTOCOL}, kernel sent ${spec.protocol}). ` +
-"Update the xy package and restart the kernel.";
-throw new Error("protocol mismatch");
-}
-this.spec = spec;
-this.interaction = spec.interaction || {};
-this.markStyle = spec.mark_style || {};
-this.axes = this._normalizeAxes(spec);
-this.comm = comm;
-this.seq = 0;
-this._densityStamp = 0;
-this._viewRequestBurstStart = null;
-this._viewAnim = null;
-this._animRaf = null;
-this._dataAnim = null;
-this._dataAnimRaf = null;
-this._transitionOldTraces = null;
-this._transitionView = null;
-this._wheelZoomRaf = null;
-this._pendingWheelZoom = null;
-this._lastLabelDraw = null;
-this._lutCache = new Map();
-this._listeners = [];
-this._glPrograms = [];
-this._progCache = new Map();
-this._bufSeq = 0;
-this._destroyed = false;
-this._resizeRaf = null;
-this._pendingResize = null;
-this._resizeNeedsMeasure = false;
-this._hoverId = -1;
-this._hoverTarget = null;
-this._viewEventRaf = null;
-this._linkedSource = `${Date.now().toString(36)}-${Math.random().toString(36).slice(2)}`;
-this.dragMode = "none";
-this._interactionSeq = 0;
-this.fluid = spec.width === "100%";
-this.fluidH = spec.height === "100%";
-const rect = this.fluid || this.fluidH ? el.getBoundingClientRect() : null;
-const cw = this.fluid ? Math.round(rect.width) || 640 : spec.width;
-const ch = this.fluidH ? Math.round(rect.height) || 420 : spec.height;
-this.size = {
-w: Math.max(this.fluid ? 120 : 48, cw),
-h: Math.max(this.fluidH ? 120 : 48, ch),
-};
-this._layout();
-this._buildDom(el);
-this.theme = readTheme(this.root);
-this._themeStale = !this.root.isConnected;
-this._payload = buffer;
-this._glLost = false;
-this._ctxReleasedExt = null;
-this._ctxReleases = 0;
-this._ctxRecoveries = 0;
-this._ctxLostPending = false;
-this._ctxRecoverRequested = false;
-this._ctxVisible = xyInitiallyVisible(el);
-XY_CONTEXT_GOVERNOR.register(this);
-if (this._ctxVisible) this._ctxSeenSeq = XY_CONTEXT_GOVERNOR.seq++;
-this._contextLossCount = 0;
-this._contextRestoreCount = 0;
-this._contextRecoveryError = null;
-try {
-this._initGl(buffer);
-} catch (err) {
-XY_CONTEXT_GOVERNOR.unregister(this);
-if (String(err && err.message || err) === "webgl2 unavailable") {
-this.root.textContent = "xy: WebGL2 unavailable in this browser.";
-}
-throw err;
-}
-this.canvas.dataset.xyCtx = "live";
-this.view0 = this._clampView({
-ranges: Object.fromEntries(Object.entries(this.axes).map(([id, axis]) => [id, [...axis.range]])),
-});
-this.view = this._copyView(this.view0);
-this.dragMode = this._resolveDefaultDragAction();
-this._initA11y();
-this.root.dataset.xyContextState = "ready";
-this._initContextLossRecovery();
-this._armContextVisibilityWatch();
-this._initViewState();
-this._initInteraction();
-this._buildModebar(this.root);
-this._initAxisBands();
-if ((this.fluid || this.fluidH) && typeof ResizeObserver !== "undefined") {
-this._ro = new ResizeObserver((entries) => {
-const r = entries[entries.length - 1].contentRect;
-if (r.width || r.height) this._queueResize(r.width, r.height);
-});
-this._ro.observe(this.root);
-}
-this._armVisibilityResizeWatch();
-this._armDprWatch();
-this._initLinkedCharts();
-this._themeWatch = window.matchMedia("(prefers-color-scheme: dark)");
-this._onScheme = () => this.refreshTheme();
-this._themeWatch.addEventListener?.("change", this._onScheme);
-if (typeof MutationObserver !== "undefined") {
-this._themeMutationObserver = new MutationObserver(() => this.refreshTheme());
-for (let node = this.root; node; node = node.parentElement) {
-this._themeMutationObserver.observe(node, {
-attributes: true,
-attributeFilter: ["class", "style"],
-});
-}
-}
-this._unsubscribeComm = comm ? comm.onMessage((msg, buffers) => this._onKernelMsg(msg, buffers)) : null;
-if (this._startEntranceAnimation) this._startEntranceAnimation();
-else this.draw();
-}
-_layout() {
-const compact = this.size.w < 520;
-const pad = Array.isArray(this.spec.padding) ? this.spec.padding : null;
-const colorbar = this.spec.colorbar;
-const verticalColorbar = colorbar && colorbar.orientation !== "horizontal";
-const horizontalColorbar = colorbar && colorbar.orientation === "horizontal";
-const responsivePad = this.fluid && compact && pad;
-const marginLeft = pad ? (responsivePad ? Math.min(pad[3], 46) : pad[3]) : compact ? 46 : MARGIN.l;
-this._compactVerticalColorbar = Boolean(this.fluid && compact && verticalColorbar);
-const colorbarRightRoom = verticalColorbar
-? (this._compactVerticalColorbar
-? COMPACT_COLORBAR_GAP + COLORBAR_THICKNESS + 8
-: 86 + (colorbar.label ? 18 : 0))
-: 0;
-const colorbarBottomRoom = horizontalColorbar ? 38 + (colorbar.label ? 16 : 0) : 0;
-const baseRight = pad ? (responsivePad ? Math.min(pad[1], 8) : pad[1]) : compact ? 8 : MARGIN.r;
-const marginRight = baseRight + colorbarRightRoom;
-const marginTop = pad ? pad[0] : compact ? 6 : MARGIN.t;
-const marginBottom = (pad ? pad[2] : compact ? 36 : MARGIN.b) + colorbarBottomRoom;
-const hasBottomAxis = Object.values(this.axes || {}).some((axis) =>
-axis && String(axis.id || "").startsWith("x") && axis.side !== "top" &&
-this._axisTickLabelStrategy(axis) !== "none");
-this._bottomAxisRoom = hasBottomAxis ? (compact ? 36 : MARGIN.b) : 0;
-const topAxisRoom = Object.values(this.axes || {}).some((axis) =>
-axis && String(axis.id || "").startsWith("x") && axis.side === "top" &&
-this._axisTickLabelStrategy(axis) !== "none")
-? (compact ? 26 : 32)
-: 0;
-const top = marginTop + (this.spec.title ? (compact ? 26 : 30) : 0) + topAxisRoom;
-const rightAxes = Object.values(this.axes || {}).filter((axis) =>
-axis && String(axis.id || "").startsWith("y") &&
-axis.side === "right" && this._axisTickLabelStrategy(axis) !== "none");
-this._rightAxisRoom = rightAxes.length ? (compact ? 42 : 54) : 0;
-const right = marginRight + this._rightAxisRoom;
-this.plot = {
-x: marginLeft,
-y: top,
-w: Math.max(40, this.size.w - marginLeft - right),
-h: Math.max(40, this.size.h - top - marginBottom),
-};
-}
-_normalizeAxes(spec) {
-const axes = { ...(spec.axes || {}) };
-if (spec.x_axis) axes.x = spec.x_axis;
-if (spec.y_axis) axes.y = spec.y_axis;
-for (const [id, axis] of Object.entries(axes)) {
-if (axis && typeof axis === "object" && !axis.id) axis.id = id;
-}
-return axes;
-}
-_axis(axisId) {
-const id = axisId || "x";
-return this.axes[id] || (String(id).startsWith("y") ? this.axes.y : this.axes.x) || {};
-}
-_axisDim(axisId) {
-return String(axisId || "x").startsWith("y") ? "y" : "x";
-}
-_axisMode(axisId) {
-return this._axis(axisId).scale === "log" ? 1 : 0;
-}
-_axisIds() {
-return Object.keys(this.axes || {});
-}
-_copyView(view) {
-const ranges = {};
-for (const axisId of this._axisIds()) {
-const range = view?.ranges?.[axisId] || this._axis(axisId).range || [0, 1];
-ranges[axisId] = [Number(range[0]), Number(range[1])];
-}
-const x = ranges.x || [0, 1];
-const y = ranges.y || [0, 1];
-return { ranges, x0: x[0], x1: x[1], y0: y[0], y1: y[1] };
-}
-_viewFrom(next, base = this.view) {
-const ranges = {};
-for (const axisId of this._axisIds()) {
-const source = next?.ranges?.[axisId]
-|| (axisId === "x" && next?.x0 !== undefined ? [next.x0, next.x1] : null)
-|| (axisId === "y" && next?.y0 !== undefined ? [next.y0, next.y1] : null)
-|| base?.ranges?.[axisId]
-|| this._axis(axisId).range
-|| [0, 1];
-ranges[axisId] = [Number(source[0]), Number(source[1])];
-}
-return this._copyView({ ranges });
-}
-_axisPolicy(name) {
-const configured = this.interaction?.[name];
-if (!Array.isArray(configured) || !configured.length) return this._axisIds();
-const declared = new Set(this._axisIds());
-return [...new Set(configured.filter((axisId) => declared.has(axisId)))];
-}
-_resetAxisPolicy() {
-if (Array.isArray(this.interaction?.reset_axes)) return this._axisPolicy("reset_axes");
-const axes = [];
-if (this._interactionFlag("pan", true)) axes.push(...this._axisPolicy("pan_axes"));
-if (this._interactionFlag("zoom", true)) axes.push(...this._axisPolicy("zoom_axes"));
-return [...new Set(axes)];
-}
-_axisContained(axisId) {
-if (!this._interactionFlag("navigation", true)) return false;
-if (!this._interactionFlag("zoom", true)) return false;
-if (!this._axisPolicy("zoom_axes").includes(axisId)) return false;
-if (!this._interactionFlag("pan", true)) return true;
-return !this._axisPolicy("pan_axes").includes(axisId);
-}
-_resolveDefaultDragAction() {
-const requested = typeof this.interaction?.default_drag_action === "string"
-? this.interaction.default_drag_action : "auto";
-const canNavigate = this._interactionFlag("navigation", true);
-const canPan = canNavigate && this._interactionFlag("pan", true);
-const canZoom = canNavigate && this._interactionFlag("zoom", true)
-&& this._interactionFlag("box_zoom", true);
-const canSelect = this._pickable && this._interactionFlag("select", true)
-&& this._interactionFlag("brush", true);
-if (requested === "auto") {
-if (canPan) return "pan";
-if (canZoom) return "zoom";
-if (canSelect) return "select";
-return "none";
-}
-if (requested === "pan") return canPan ? "pan" : this._resolveDefaultDragActionFallback();
-if (requested === "zoom") return canZoom ? "zoom" : this._resolveDefaultDragActionFallback();
-if (requested.startsWith("select")) {
-return canSelect ? requested : this._resolveDefaultDragActionFallback();
-}
-return requested === "none" ? "none" : this._resolveDefaultDragActionFallback();
-}
-_resolveDefaultDragActionFallback() {
-const saved = this.interaction.default_drag_action;
-this.interaction.default_drag_action = "auto";
-const resolved = this._resolveDefaultDragAction();
-this.interaction.default_drag_action = saved;
-return resolved;
-}
-_axisCoord(axis, value) {
-const v = Number(value);
-if (!Number.isFinite(v)) return NaN;
-if (axis && axis.scale === "log") return v > 0 ? Math.log10(v) : NaN;
-return v;
-}
-_axisValue(axis, coord) {
-if (axis && axis.scale === "log") return Math.pow(10, coord);
-return coord;
-}
-_axisRange(axisId, view = this.view) {
-const mapped = view?.ranges?.[axisId];
-if (Array.isArray(mapped)) return [mapped[0], mapped[1]];
-if (axisId === "x" && view) return [view.x0, view.x1];
-if (axisId === "y" && view) return [view.y0, view.y1];
-const axis = this._axis(axisId);
-const r = axis.range || [0, 1];
-return [Number(r[0]), Number(r[1])];
-}
-_axisTicks(axisId, target) {
-const axis = this._axis(axisId);
-const [lo, hi] = this._axisRange(axisId);
-if (Array.isArray(axis.tick_values)) {
-const a = Math.min(lo, hi), b = Math.max(lo, hi);
-const ticks = axis.tick_values.map(Number).filter((v) => Number.isFinite(v) && v >= a && v <= b);
-return { ticks, labels: ticks, step: ticks.length > 1 ? Math.abs(ticks[1] - ticks[0]) : 1 };
-}
-if (axis.kind === "time") return timeTicks(lo, hi, target);
-if (axis.kind === "category") return categoryTicks(lo, hi, axis.categories || [], target);
-if (axis.scale === "log") return logTicks(lo, hi, target);
-return linearTicks(lo, hi, target);
-}
-_axisTickText(axis, value, step) {
-if (Array.isArray(axis.tick_values) && Array.isArray(axis.tick_labels)) {
-const index = axis.tick_values.findIndex((candidate) => Number(candidate) === Number(value));
-if (index >= 0 && index < axis.tick_labels.length) return String(axis.tick_labels[index]);
-}
-return fmtAxis(axis, value, step);
-}
-_axisTickTarget(axisId, fallback) {
-const axis = this._axis(axisId);
-const requested = Number(axis && axis.tick_count);
-if (Number.isFinite(requested) && requested > 0) {
-return Math.max(1, Math.min(200, requested));
-}
-return fallback;
-}
-_dataPx(axisId, value) {
-const dim = this._axisDim(axisId);
-const axis = this._axis(axisId);
-const [lo, hi] = this._axisRange(axisId);
-const c0 = this._axisCoord(axis, lo);
-const c1 = this._axisCoord(axis, hi);
-const c = this._axisCoord(axis, value);
-if (![c0, c1, c].every(Number.isFinite) || c1 === c0) return NaN;
-if (dim === "x") return this.plot.x + ((c - c0) / (c1 - c0)) * this.plot.w;
-return this.plot.y + (1 - (c - c0) / (c1 - c0)) * this.plot.h;
-}
-_listen(target, type, handler, options) {
-target.addEventListener(type, handler, options);
-this._listeners.push({ target, type, handler, options });
-return handler;
-}
-_interactionFlag(name, fallback = false) {
-const value = this.interaction && this.interaction[name];
-return value === undefined ? fallback : value === true;
-}
-_eventView(source = "view") {
-return {
-ranges: Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId)]])
-),
-x0: this.view.x0,
-x1: this.view.x1,
-y0: this.view.y0,
-y1: this.view.y1,
-source,
-};
-}
-_dispatchChartEvent(name, detail) {
-if (!this.root || typeof CustomEvent !== "function") return;
-this.root.dispatchEvent(new CustomEvent(`xy:${name}`, {
-detail,
-bubbles: true,
-composed: true,
-}));
-}
-_emitViewChange(source = "view", opts = {}) {
-if (this._destroyed) return;
-const broadcast = opts.broadcast !== false;
-this._pendingViewEvent = {
-source,
-broadcast,
-axes: Array.isArray(opts.axes) ? [...opts.axes] : [],
-phase: opts.phase || "end",
-interaction_id: opts.interactionId ?? ++this._interactionSeq,
-};
-if (this._viewEventRaf) return;
-this._viewEventRaf = requestAnimationFrame(() => {
-this._viewEventRaf = null;
-const pending = this._pendingViewEvent || { source, broadcast };
-this._pendingViewEvent = null;
-const detail = {
-...this._eventView(pending.source),
-axes: pending.axes,
-phase: pending.phase,
-interaction_id: pending.interaction_id,
-};
-this._dispatchChartEvent("view_change", detail);
-if (this.comm && (pending.phase === "end"
-|| !this.comm.wantsViewChange || this.comm.wantsViewChange())) {
-this.comm.send({ type: "view_change", ...detail });
-}
-if (pending.broadcast) this._broadcastLinkedView(detail);
-});
-}
-_initLinkedCharts() {
-const group = this.interaction && this.interaction.link_group;
-if (!group || typeof BroadcastChannel !== "function") return;
-this._linkAxes = this._axisPolicy("link_axes");
-this._linkChannel = new BroadcastChannel(`xy:${group}`);
-this._linkChannel.onmessage = (event) => {
-const msg = event.data || {};
-if (msg.source === this._linkedSource) return;
-if (this._interactionFlag("link_select") && msg.selection) {
-const selection = msg.selection;
-if (selection.clear) {
-this._clearSelection({ broadcast: false, dispatch: false });
-} else if (selection.polygon) {
-this._stateSelection = { polygon: selection.polygon.map((point) => [...point]) };
-this._selectLocalPolygon(selection.polygon, { dispatch: false });
-} else if (selection.range) {
-const { x0, x1, y0, y1 } = selection.range;
-if ([x0, x1, y0, y1].every(Number.isFinite)) {
-this._stateSelection = { range: { x0, x1, y0, y1 } };
-this._selectLocal(x0, x1, y0, y1, { dispatch: false });
-}
-}
-return;
-}
-if (!msg.view || msg.source === this._linkedSource) return;
-const incoming = msg.view.ranges || {};
-const ranges = Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId)]])
-);
-for (const axisId of this._linkAxes) {
-const range = incoming[axisId]
-|| (axisId === "x" ? [msg.view.x0, msg.view.x1] : null)
-|| (axisId === "y" ? [msg.view.y0, msg.view.y1] : null);
-if (Array.isArray(range) && range.length === 2 && range.every(Number.isFinite)) {
-ranges[axisId] = [Number(range[0]), Number(range[1])];
-}
-}
-this._setView({ ranges }, {
-animate: false,
-source: "linked",
-phase: "end",
-broadcast: false,
-});
-};
-}
-_broadcastLinkedView(detail) {
-if (!this._linkChannel) return;
-const axes = (detail.axes || []).filter((axisId) => this._linkAxes.includes(axisId));
-if (!axes.length) return;
-const ranges = Object.fromEntries(axes.map((axisId) => [axisId, detail.ranges[axisId]]));
-this._linkChannel.postMessage({
-source: this._linkedSource,
-view: { ...detail, axes, ranges },
-});
-}
-_broadcastLinkedSelection(selection) {
-if (!this._linkChannel || !this._interactionFlag("link_select")) return;
-this._linkChannel.postMessage({ source: this._linkedSource, selection });
-}
-setView(ranges, opts = {}) {
-return this._setView({ ranges }, {
-animate: opts.animate === true,
-source: "programmatic",
-phase: "end",
-interactionId: ++this._interactionSeq,
-broadcast: opts.broadcast === true,
-});
-}
-resetView(opts = {}) {
-return this._resetView(opts.animate !== false, "reset");
-}
-_applyClass(el, className) {
-if (typeof className !== "string") return;
-for (const token of className.split(/\s+/).filter(Boolean)) {
-try { el.classList.add(token); } catch (_) {   }
-}
-}
-_stylePropertyName(key) {
-if (key.startsWith("--")) return key;
-return key.replace(/_/g, "-").replace(/[A-Z]/g, (match) => `-${match.toLowerCase()}`);
-}
-_stylePropertyValue(property, value) {
-if (typeof value !== "number") return String(value);
-if (!Number.isFinite(value)) return null;
-if (property.startsWith("--") || UNITLESS_STYLE_PROPS.has(property)) return String(value);
-return `${value}px`;
-}
-_applyStyle(el, style) {
-if (!style || typeof style !== "object" || Array.isArray(style)) return;
-for (const [key, value] of Object.entries(style)) {
-if (typeof key !== "string") continue;
-if (typeof value !== "string" && typeof value !== "number") continue;
-const property = this._stylePropertyName(key);
-const cssValue = this._stylePropertyValue(property, value);
-if (cssValue != null) el.style.setProperty(property, cssValue);
-}
-}
-_applySlot(el, slot) {
-if (el && el.dataset) el.dataset.xySlot = slot;
-const dom = this.spec.dom;
-if (!dom || typeof dom !== "object") return;
-if (slot === "root") this._applyClass(el, dom.class_name);
-if (dom.class_names && typeof dom.class_names === "object") {
-this._applyClass(el, dom.class_names[slot]);
-}
-if (slot === "root") this._applyStyle(el, dom.style);
-if (dom.styles && typeof dom.styles === "object") {
-this._applyStyle(el, dom.styles[slot]);
-}
-}
-_slotStyleValue(slot, property) {
-const styles = this.spec.dom?.styles;
-const style = styles && typeof styles === "object" ? styles[slot] : null;
-if (!style || typeof style !== "object" || Array.isArray(style)) return null;
-const want = this._stylePropertyName(property);
-for (const key of Object.keys(style)) {
-if (this._stylePropertyName(key) === want) return style[key];
-}
-return null;
-}
-_syncContainerSize() {
-if (this._destroyed || !(this.fluid || this.fluidH) || !this.root) return;
-this._queueResize(null, null, true);
-}
-_queueResize(cssW = null, cssH = null, measure = false) {
-if (this._destroyed) return;
-if (cssW || cssH) this._pendingResize = { cssW, cssH };
-if (measure) this._resizeNeedsMeasure = true;
-if (this._resizeRaf) return;
-this._resizeRaf = requestAnimationFrame(() => {
-this._resizeRaf = null;
-let pending = this._pendingResize;
-this._pendingResize = null;
-if (this._resizeNeedsMeasure && this.root) {
-const rect = this.root.getBoundingClientRect();
-if (rect.width || rect.height) pending = { cssW: rect.width, cssH: rect.height };
-}
-this._resizeNeedsMeasure = false;
-if (pending && (pending.cssW || pending.cssH)) {
-this._resize(pending.cssW, pending.cssH);
-}
-});
-}
-_armVisibilityResizeWatch() {
-if (!(this.fluid || this.fluidH)) return;
-const syncSoon = () => {
-if (this._destroyed) return;
-this._syncContainerSize();
-};
-this._listen(window, "resize", syncSoon);
-this._listen(window, "pageshow", syncSoon);
-this._listen(document, "visibilitychange", syncSoon);
-if (typeof IntersectionObserver !== "undefined") {
-this._io = new IntersectionObserver((entries) => {
-if (entries.some((entry) => entry.isIntersecting || entry.intersectionRatio > 0)) {
-syncSoon();
-}
-});
-this._io.observe(this.root);
-}
-}
-_markStateValue(state, property, fallback = null) {
-const styles = this.markStyle && typeof this.markStyle === "object" ? this.markStyle[state] : null;
-if (!styles || typeof styles !== "object" || Array.isArray(styles)) return fallback;
-if (Object.prototype.hasOwnProperty.call(styles, property)) return styles[property];
-return fallback;
-}
-_markStateNumber(state, property, fallback) {
-const value = this._markStateValue(state, property, fallback);
-if (typeof value !== "number" || !Number.isFinite(value)) return fallback;
-return value;
-}
-_markStatePaint(state, property, fallback) {
-const value = this._markStateValue(state, property, fallback);
-return typeof value === "string" ? value : fallback;
-}
-_armDprWatch() {
-if (typeof window.matchMedia !== "function") return;
-this._dprMq?.removeEventListener?.("change", this._onDprChange);
-const mq = window.matchMedia(`(resolution: ${window.devicePixelRatio}dppx)`);
-this._onDprChange = () => {
-if (this._destroyed) return;
-this._resize(this.size.w, this.size.h);
-this._armDprWatch();
-};
-mq.addEventListener?.("change", this._onDprChange, { once: true });
-this._dprMq = mq;
-}
-_initContextLossRecovery() {
-this._listen(this.canvas, "webglcontextlost", (e) => {
-e.preventDefault();
-if (this._destroyed) return;
-const governedRelease = this.canvas.dataset.xyCtx === "released";
-if (this._glLost && !governedRelease) return;
-this._glLost = true;
-this._ctxLostPending = false;
-if (!governedRelease) this.canvas.dataset.xyCtx = "lost";
-XY_CONTEXT_GOVERNOR._announceLive();
-this._contextLossCount += 1;
-this._contextRecoveryError = null;
-this.root.dataset.xyContextState = "lost";
-this.seq += 1;
-if (this._raf) cancelAnimationFrame(this._raf);
-this._raf = null;
-if (this._wheelZoomRaf) cancelAnimationFrame(this._wheelZoomRaf);
-this._wheelZoomRaf = null;
-this._pendingWheelZoom = null;
-clearTimeout(this._wheelZoomEndTimer);
-this._wheelZoomEndTimer = null;
-this._wheelGesture = null;
-if (this._dataAnimRaf) cancelAnimationFrame(this._dataAnimRaf);
-this._dataAnimRaf = null;
-if (this._dataAnim) {
-this._emitAnimationLifecycle?.("end", this._dataAnim.phase, { cancelled: true });
-}
-this._dataAnim = null;
-this._transitionOldTraces = null;
-this._transitionView = null;
-if (this.view0) this.view = { ...this.view0 };
-this._cancelViewAnimation();
-clearTimeout(this._viewTimer);
-this._viewTimer = null;
-clearTimeout(this._rebinTimer);
-this._rebinTimer = null;
-this._viewRequestBurstStart = null;
-this._dispatchChartEvent("context_lost", {
-loss_count: this._contextLossCount,
-});
-const documentVisible =
-typeof document === "undefined" ||
-!document.visibilityState ||
-document.visibilityState === "visible";
-if (!governedRelease && this._ctxVisible && documentVisible) {
-setTimeout(() => {
-if (
-!this._destroyed &&
-this._glLost &&
-this.canvas.dataset.xyCtx === "lost" &&
-this._ctxVisible
-) {
-this._recoverContext();
-}
-}, 0);
-}
-if (governedRelease && this._ctxRecoverRequested && !this._destroyed && this._ctxVisible) {
-this._ctxRecoverRequested = false;
-setTimeout(() => {
-if (!this._destroyed && this._glLost && this._ctxVisible) this._recoverContext();
-}, 0);
-}
-});
-this._listen(this.canvas, "webglcontextrestored", () => {
-if (this._destroyed || this._contextRecoveryError) return;
-this._lutCache.clear();
-this.pickFbo = null;
-this.pickTex = null;
-try {
-this._initGl(this._payload);
-this._glLost = false;
-this._drawNow();
-this._assertContextFrameReady("restore");
-} catch (err) {
-this._glLost = true;
-this.canvas.dataset.xyCtx = "lost";
-this.root.dataset.xyContextState = "lost";
-const transient =
-!this.gl ||
-this.gl.isContextLost() ||
-String(err && err.message || err).includes("shader compile: null") ||
-String(err && err.message || err).startsWith("WebGL error ");
-if (transient) {
-this._contextRecoveryError = null;
-this._scheduleContextRecovery();
-return;
-}
-this._contextRecoveryError = err;
-this.root.dataset.xyContextState = "failed";
-try { this._destroyGlResources(); } catch (_cleanupErr) {}
-this.gl = null;
-this._dispatchChartEvent("context_restore_failed", {
-loss_count: this._contextLossCount,
-message: err instanceof Error ? err.message : String(err),
-});
-this.root.textContent = "xy: WebGL2 context could not be restored.";
-return;
-}
-this._contextRestoreCount += 1;
-this._contextRecoveryError = null;
-this._ctxRecoveryDelay = 0;
-this.canvas.dataset.xyCtx = "live";
-this.root.dataset.xyContextState = "ready";
-XY_CONTEXT_GOVERNOR._announceLive();
-this._scheduleViewRequest(this.view, { delay: 0 });
-this._dropContextSnapshot();
-this._dispatchChartEvent("context_restored", {
-loss_count: this._contextLossCount,
-restore_count: this._contextRestoreCount,
-});
-});
-}
-_releaseContext() {
-if (this._destroyed || !this.gl || this._glLost || this.gl.isContextLost()) return false;
-const ext = this.gl.getExtension("WEBGL_lose_context");
-if (!ext) return false;
-this._snapshotBeforeRelease();
-this._ctxReleasedExt = ext;
-this._ctxReleases += 1;
-this._glLost = true;
-this._ctxLostPending = true;
-this.canvas.dataset.xyCtx = "released";
-if (this._raf) cancelAnimationFrame(this._raf);
-this._raf = null;
-ext.loseContext();
-XY_CONTEXT_GOVERNOR._announceLive();
-return true;
-}
-_snapshotBeforeRelease() {
-try {
-if (this._raf) cancelAnimationFrame(this._raf);
-this._raf = null;
-this._rafKeepPick = true;
-this._drawNow();
-let snap = this._ctxSnapshot;
-if (!snap) {
-snap = this._ctxSnapshot = document.createElement("canvas");
-snap.dataset.xyCtxSnapshot = "";
-}
-snap.width = this.canvas.width;
-snap.height = this.canvas.height;
-snap.style.cssText = this.canvas.style.cssText;
-snap.style.pointerEvents = "none";
-const gl = this.gl;
-const w = this.canvas.width;
-const h = this.canvas.height;
-gl.finish();
-const pixels = new Uint8Array(w * h * 4);
-gl.readPixels(0, 0, w, h, gl.RGBA, gl.UNSIGNED_BYTE, pixels);
-const ctx = snap.getContext("2d");
-const image = ctx.createImageData(w, h);
-const data = image.data;
-for (let srcY = 0; srcY < h; srcY++) {
-let src = srcY * w * 4;
-const srcEnd = src + w * 4;
-let dst = (h - 1 - srcY) * w * 4;
-for (; src < srcEnd; src += 4, dst += 4) {
-const alpha = pixels[src + 3];
-let red = pixels[src];
-let green = pixels[src + 1];
-let blue = pixels[src + 2];
-if (alpha > 0 && alpha < 255) {
-const scale = 255 / alpha;
-red = Math.min(255, Math.round(red * scale));
-green = Math.min(255, Math.round(green * scale));
-blue = Math.min(255, Math.round(blue * scale));
-}
-data[dst] = red;
-data[dst + 1] = green;
-data[dst + 2] = blue;
-data[dst + 3] = alpha;
-}
-}
-ctx.putImageData(image, 0, 0);
-this.canvas.before(snap);
-this.canvas.style.visibility = "hidden";
-} catch (_err) {
-this._dropContextSnapshot();
-}
-}
-_dropContextSnapshot() {
-this.canvas.style.visibility = "";
-if (this._ctxSnapshot) this._ctxSnapshot.remove();
-this._ctxSnapshot = null;
-}
-_recoverContext() {
-if (this._destroyed || !this._glLost) return;
-if (this._ctxReleasedExt && this._ctxLostPending) {
-this._ctxRecoverRequested = true;
-return;
-}
-this._ctxRecoveries += 1;
-if (this._ctxReleasedExt) {
-const ext = this._ctxReleasedExt;
-this._ctxReleasedExt = null;
-try {
-XY_CONTEXT_GOVERNOR.reserve(this);
-ext.restoreContext();
-return;
-} catch (_err) {
-XY_CONTEXT_GOVERNOR.cancel(this);
-}
-}
-this._rebuildEvictedContext();
-}
-_assertContextFrameReady(stage) {
-if (!this.gl) {
-throw new Error(`context lost during ${stage} draw`);
-}
-this.gl.finish();
-if (this.gl.isContextLost()) throw new Error(`context lost during ${stage} draw`);
-const error = this.gl.getError();
-if (error !== this.gl.NO_ERROR) {
-throw new Error(`WebGL error ${error} during ${stage} draw`);
-}
-}
-_scheduleContextRecovery() {
-if (this._ctxRecoveryTimer || this._destroyed || !this._ctxVisible) return;
-if (
-typeof document !== "undefined" &&
-document.visibilityState &&
-document.visibilityState !== "visible"
-) return;
-const delay = this._ctxRecoveryDelay || 50;
-this._ctxRecoveryDelay = Math.min(1000, delay * 2);
-this._ctxRecoveryTimer = setTimeout(() => {
-this._ctxRecoveryTimer = null;
-if (this._glLost && !this._destroyed && this._ctxVisible) this._recoverContext();
-}, delay);
-}
-_rebuildEvictedContext() {
-if (this.gl && !this.gl.isContextLost()) {
-try { this.gl.getExtension("WEBGL_lose_context")?.loseContext(); } catch (_err) {}
-}
-const fresh = this.canvas.cloneNode(false);
-for (const record of this._listeners) {
-if (record.target === this.canvas) {
-this.canvas.removeEventListener(record.type, record.handler, record.options);
-fresh.addEventListener(record.type, record.handler, record.options);
-record.target = fresh;
-}
-}
-this.canvas.replaceWith(fresh);
-this.canvas = fresh;
-this._glLost = false;
-this._lutCache.clear();
-this.pickFbo = null;
-this.pickTex = null;
-try {
-this._initGl(this._payload);
-this._glLost = false;
-this._drawNow();
-this._assertContextFrameReady("rebuild");
-} catch (_err) {
-this._glLost = true;
-this.canvas.dataset.xyCtx = "lost";
-this._scheduleContextRecovery();
-return;
-}
-this._ctxRecoveryDelay = 0;
-this.canvas.dataset.xyCtx = "live";
-XY_CONTEXT_GOVERNOR._announceLive();
-this._scheduleViewRequest(this.view, { delay: 0 });
-this._dropContextSnapshot();
-}
-_armContextVisibilityWatch() {
-this._listen(this.root, "pointerenter", () => {
-if (this._glLost && !this._destroyed) this._recoverContext();
-});
-if (typeof document !== "undefined") {
-this._listen(document, "visibilitychange", () => {
-if (document.visibilityState === "hidden") {
-XY_CONTEXT_GOVERNOR.scheduleHiddenReleases();
-return;
-}
-XY_CONTEXT_GOVERNOR.cancelHiddenReleases();
-if (
-document.visibilityState === "visible" &&
-this._ctxVisible &&
-this._glLost &&
-!this._destroyed
-) {
-this._recoverContext();
-}
-});
-}
-if (typeof IntersectionObserver === "undefined") {
-this._ctxVisible = true;
-return;
-}
-this._ctxIo = new IntersectionObserver(
-(entries) => {
-const entry = entries[entries.length - 1];
-this._ctxVisible = entry.isIntersecting || entry.intersectionRatio > 0;
-if (this._ctxVisible) {
-this._ctxSeenSeq = XY_CONTEXT_GOVERNOR.seq++;
-if (this._glLost && !this._destroyed) this._recoverContext();
-if (this._healStaleTheme()) this.draw();
-} else if (!this._destroyed) {
-XY_CONTEXT_GOVERNOR._rebalance();
-}
-},
-{ rootMargin: "25% 0px 25% 0px" },
-);
-this._ctxIo.observe(this.root);
-}
-_resize(cssW, cssH) {
-const w = this.fluid && cssW ? Math.max(120, Math.round(cssW)) : this.size.w;
-const h = this.fluidH && cssH ? Math.max(120, Math.round(cssH)) : this.size.h;
-const dpr = window.devicePixelRatio || 1;
-if (w === this.size.w && h === this.size.h && dpr === this.dpr) return;
-this.dpr = dpr;
-this.size.w = w;
-this.size.h = h;
-this._layout();
-const p = this.plot;
-this.root.style.setProperty("--xy-legend-max-width", Math.max(40, p.w - 12) + "px");
-this.root.style.setProperty("--xy-legend-max-height", Math.max(40, p.h - 12) + "px");
-this.canvas.style.left = p.x + "px";
-this.canvas.style.top = p.y + "px";
-this.canvas.style.width = p.w + "px";
-this.canvas.style.height = p.h + "px";
-this.canvas.width = p.w * this.dpr;
-this.canvas.height = p.h * this.dpr;
-this.chrome.style.width = this.size.w + "px";
-this.chrome.style.height = this.size.h + "px";
-this.chrome.width = this.size.w * this.dpr;
-this.chrome.height = this.size.h * this.dpr;
-this.overlay.style.width = this.size.w + "px";
-this.overlay.style.height = this.size.h + "px";
-this.overlay.width = this.size.w * this.dpr;
-this.overlay.height = this.size.h * this.dpr;
-for (const lg of this._legends || []) {
-this._positionLegend(lg, lg.dataset.xyLegendLoc || "upper right");
-}
-this._positionReductionBadges();
-this._positionColorbar();
-this._fitModebar();
-this._layoutAxisBands();
-this._pickDirty = true;
-if (this._raf) cancelAnimationFrame(this._raf);
-this._raf = null;
-this._drawNow();
-this._scheduleViewRequest();
-}
-_buildDom(el) {
-const s = this.spec;
-const root = document.createElement("div");
-root.className = "xy";
-root.style.cssText =
-`position:relative;width:${this.fluid ? "100%" : this.size.w + "px"};` +
-`height:${this.fluidH ? "100%" : this.size.h + "px"};` +
-`--xy-legend-max-width:${Math.max(40, this.plot.w - 12)}px;` +
-`--xy-legend-max-height:${Math.max(40, this.plot.h - 12)}px;` +
-(this.fluidH ? "min-height:120px;" : "") +
-"font:12px system-ui,sans-serif;user-select:none;";
-this._applySlot(root, "root");
-if (root.style.background || root.style.backgroundColor) root.dataset.xyOwnBg = "";
-el.appendChild(root);
-this.root = root;
-ensureChromeStylesheet(root);
-let a11yId;
-do {
-a11yId = `xy-a11y-${++XY_A11Y_ID}`;
-} while (
-document.getElementById(`${a11yId}-summary`) || document.getElementById(`${a11yId}-live`)
-);
-root.setAttribute("role", "region");
-root.setAttribute("aria-label", s.title ? `Chart: ${s.title}` : "Interactive chart");
-this.a11ySummary = document.createElement("div");
-this.a11ySummary.id = `${a11yId}-summary`;
-this.a11ySummary.style.cssText = XY_SR_ONLY_STYLE;
-root.setAttribute("aria-describedby", this.a11ySummary.id);
-root.appendChild(this.a11ySummary);
-this.a11yLive = document.createElement("div");
-this.a11yLive.id = `${a11yId}-live`;
-this.a11yLive.setAttribute("role", "status");
-this.a11yLive.setAttribute("aria-live", "polite");
-this.a11yLive.setAttribute("aria-atomic", "true");
-this.a11yLive.style.cssText = XY_SR_ONLY_STYLE;
-root.appendChild(this.a11yLive);
-if (s.title) {
-const t = document.createElement("div");
-t.textContent = s.title;
-t.style.cssText = "position:absolute;top:6px;left:0;right:0;";
-this._applySlot(t, "title");
-root.appendChild(t);
-}
-this.chrome = document.createElement("canvas");
-this.chrome.style.cssText = "position:absolute;inset:0;pointer-events:none;";
-this._applySlot(this.chrome, "chrome");
-root.appendChild(this.chrome);
-this.canvas = document.createElement("canvas");
-this.canvas.style.cssText =
-`position:absolute;left:${this.plot.x}px;top:${this.plot.y}px;` +
-`width:${this.plot.w}px;height:${this.plot.h}px;touch-action:none;`;
-this._applySlot(this.canvas, "canvas");
-this.canvas.tabIndex = 0;
-this.canvas.setAttribute("role", "img");
-this.canvas.setAttribute("aria-describedby", this.a11ySummary.id);
-root.appendChild(this.canvas);
-this.overlay = document.createElement("canvas");
-this.overlay.style.cssText = "position:absolute;inset:0;pointer-events:none;";
-root.appendChild(this.overlay);
-this.labels = document.createElement("div");
-this.labels.style.cssText = "position:absolute;inset:0;pointer-events:none;";
-this._applySlot(this.labels, "labels");
-root.appendChild(this.labels);
-this.tooltip = document.createElement("div");
-this.tooltip.style.cssText =
-"position:absolute;display:none;pointer-events:none;z-index:5;";
-this._applySlot(this.tooltip, "tooltip");
-this.tooltip.setAttribute("aria-hidden", "true");
-root.appendChild(this.tooltip);
-this._buildLegend(root);
-this._buildColorbar(root);
-this._buildReductionBadges(root);
-}
-_a11yAxisSummary(axisId, name) {
-const axis = this._axis(axisId);
-const label = axis.label ? `${name} axis (${axis.label})` : `${name} axis`;
-if (axis.kind === "category") {
-const categories = Array.isArray(axis.categories) ? axis.categories : [];
-if (!categories.length) return `${label} uses categories.`;
-const shown = categories.slice(0, 6).map((value) => String(value));
-const remaining = categories.length - shown.length;
-const suffix = remaining > 0 ? `, and ${remaining} more` : "";
-return `${label} has ${categories.length} categories: ${shown.join(", ")}${suffix}.`;
-}
-const range = axis.range || [];
-if (range.length < 2) return null;
-return `${label} ranges from ${fmtValue(range[0], axis.kind)} to ${fmtValue(range[1], axis.kind)}.`;
-}
-_a11ySummaryText() {
-const traces = Array.isArray(this.spec.traces) ? this.spec.traces : [];
-const parts = [this.spec.title ? `${this.spec.title}.` : "Interactive chart."];
-parts.push(`${traces.length} data series.`);
-const names = traces.map((trace) => trace && trace.name).filter(Boolean).slice(0, 6);
-if (names.length) parts.push(`Series: ${names.join(", ")}.`);
-const x = this._a11yAxisSummary("x", "X");
-const y = this._a11yAxisSummary("y", "Y");
-if (x) parts.push(x);
-if (y) parts.push(y);
-return parts.join(" ");
-}
-_initA11y() {
-if (!this.a11ySummary || !this.canvas) return;
-this.a11ySummary.textContent = this._a11ySummaryText();
-const instruction = this._pickable
-? " Use Arrow keys to explore data points in series data order; Home and End jump to the first and last point; Escape closes the readout."
-: "";
-this.canvas.setAttribute("aria-label", `Plot area.${instruction}`);
-}
-_compactInt(value) {
-const n = Number(value);
-if (!Number.isFinite(n)) return "0";
-return Math.round(n).toLocaleString();
-}
-_positionReductionBadges() {
-if (!this._badges) return;
-const rightInset = this.size.w - (this.plot.x + this.plot.w);
-const bottomInset = this.size.h - (this.plot.y + this.plot.h);
-this._badges.style.right = `${rightInset + 6}px`;
-this._badges.style.bottom = `${bottomInset + 6}px`;
-}
-_reductionBadgeItems() {
-const items = [];
-const traces = this.gpuTraces && this.gpuTraces.length
-? this.gpuTraces
-: (this.spec.traces || []);
-for (const entry of traces) {
-const t = entry.trace || entry;
-if (t.tier !== "density" || !t.density) continue;
-const sample = entry.sampleOverlay && entry.sampleOverlay.sample
-? entry.sampleOverlay.sample
-: t.density.sample;
-if (sample && Number(sample.n) > 0) {
-items.push(`sampled ${this._compactInt(sample.n)} of ${this._compactInt(sample.visible)}`);
-}
-if (entry._sampleRebinned) items.push("zoom re-binned from sample");
-if (t.density.channels_dropped) items.push("aggregated channels");
-}
-return items;
-}
-_refreshReductionBadges() {
-if (!this._badges) return;
-const items = this._reductionBadgeItems();
-this._badges.textContent = "";
-this._badges.hidden = items.length === 0;
-for (const item of items) {
-const badge = document.createElement("div");
-badge.textContent = item;
-this._applySlot(badge, "badge_item");
-this._badges.appendChild(badge);
-}
-this._positionReductionBadges();
-}
-_buildReductionBadges(root) {
-const items = this._reductionBadgeItems();
-const hasDensityTrace = (this.spec.traces || []).some((t) => t.tier === "density");
-if (!items.length && !hasDensityTrace) return;
-const box = document.createElement("div");
-box.style.cssText =
-"position:absolute;display:flex;flex-direction:column;align-items:flex-end;" +
-"pointer-events:none;z-index:4;";
-this._applySlot(box, "badge");
-root.appendChild(box);
-this._badges = box;
-this._refreshReductionBadges();
-}
-_buildLegend(root) {
-const s = this.spec;
-this._legends = [];
-const items = [];
-if (s.show_legend !== false) {
-for (const t of s.traces) {
-if (t.tier === "density") {
-items.push({ swatch: "gradient", cmap: t.density.colormap, name: t.name || "density" });
-} else if (t.color && t.color.mode === "categorical") {
-t.color.categories.forEach((cat, i) =>
-items.push({ swatch: t.color.palette[i], name: cat, symbol: t.kind === "scatter" ? (t.style?.symbol || "circle") : null, style: t.style || {} }));
-} else if (t.color && t.color.mode === "continuous") {
-items.push({ swatch: "gradient", cmap: t.color.colormap, name: t.name || "value" });
-} else if (t.name) {
-const c = (t.color && t.color.color) || (t.style && t.style.color);
-const line = ["line", "segments", "step", "stairs", "errorbar"].includes(t.kind);
-items.push({ swatch: c, name: t.name, symbol: t.kind === "scatter" ? (t.style?.symbol || "circle") : null, line, style: t.style || {} });
-}
-}
-if (items.length) this._legendBox(root, items, s.legend || {});
-}
-for (const extra of s.extra_legends || []) {
-const mapped = (extra.items || []).map((it) => ({
-swatch: it.style && it.style.color,
-name: it.name,
-symbol: it.kind === "scatter" ? (it.style?.symbol || "circle") : null,
-line: ["line", "segments", "step", "stairs", "errorbar"].includes(it.kind),
-style: it.style || {},
-}));
-if (mapped.length) this._legendBox(root, mapped, extra);
-}
-}
-_legendBox(root, items, options) {
-const lg = document.createElement("div");
-const loc = options.loc || "upper right";
-const ncols = Math.max(1, Number(options.ncols) || 1);
-const horizontal = ncols > 1;
-lg.style.cssText = "position:absolute;" +
-`display:grid;grid-template-columns:repeat(${horizontal ? ncols : 1},max-content);` +
-"overflow:auto;";
-lg.dataset.xyLegendLoc = loc;
-this._positionLegend(lg, loc);
-this._applySlot(lg, "legend");
-if (options.title) {
-const title = document.createElement("div");
-title.textContent = String(options.title);
-title.style.fontWeight = "600";
-title.style.gridColumn = `1 / span ${horizontal ? ncols : 1}`;
-lg.appendChild(title);
-}
-for (const it of items) {
-const row = document.createElement("div");
-this._applySlot(row, "legend_item");
-const sw = document.createElement("span");
-sw.style.display = "inline-block";
-sw.style.verticalAlign = "-1px";
-let bg = it.swatch;
-if (it.swatch === "gradient") {
-const stops = colormapStops(it.cmap);
-bg = `linear-gradient(90deg,${stops.map((c) => `rgb(${c[0]},${c[1]},${c[2]})`).join(",")})`;
-sw.style.background = bg;
-} else if (it.symbol) {
-const ns = "http://www.w3.org/2000/svg";
-const svg = document.createElementNS(ns, "svg");
-svg.setAttribute("viewBox", "0 0 18 14");
-svg.setAttribute("width", "18");
-svg.setAttribute("height", "14");
-const path = document.createElementNS(ns, "path");
-const paths = {
-square: "M4.5 2.5h9v9h-9z", diamond: "M9 2l5 5-5 5-5-5z",
-thin_diamond: "M9 2l3 5-3 5-3-5z",
-triangle: "M9 2l-5 10h10z", triangle_down: "M9 12L4 2h10z",
-triangle_left: "M4 7L14 2v10z", triangle_right: "M14 7L4 2v10z",
-plus_line: "M9 2v10M4 7h10", x_line: "M5 3l8 8M13 3l-8 8",
-cross: "M7.5 2h3v3.5H14v3h-3.5V12h-3V8.5H4v-3h3.5z",
-x: "M5.5 2L9 5.5 12.5 2 14 3.5 10.5 7 14 10.5 12.5 12 9 8.5 5.5 12 4 10.5 7.5 7 4 3.5z",
-pentagon: "M9 2.5L13.28 5.61 11.65 10.64H6.35L4.72 5.61z",
-hexagon: "M9 2L13.3 4.5v5L9 12l-4.3-2.5v-5z",
-star: "M9 2l1.5 3.1 3.5.5-2.5 2.5.6 3.5L9 10l-3.1 1.6.6-3.5L4 5.6l3.5-.5z"
-};
-const color = safeCssPaint(this.root, bg);
-if (it.symbol === "circle" || it.symbol === "point" || it.symbol === "pixel") {
-if (it.symbol === "pixel") path.setAttribute("d", "M8.5 6.5h1v1h-1z");
-else path.setAttribute("d", `M9 ${it.symbol === "point" ? 4.75 : 2.5}a${it.symbol === "point" ? 2.25 : 4.5} ${it.symbol === "point" ? 2.25 : 4.5} 0 1 0 0 ${it.symbol === "point" ? 4.5 : 9}a${it.symbol === "point" ? 2.25 : 4.5} ${it.symbol === "point" ? 2.25 : 4.5} 0 1 0 0 -${it.symbol === "point" ? 4.5 : 9}`);
-} else path.setAttribute("d", paths[it.symbol] || paths.square);
-path.setAttribute("fill", it.symbol.endsWith("_line") ? "none" : color);
-path.setAttribute("stroke", color);
-path.setAttribute("stroke-width", String(it.style?.stroke_width || 1));
-svg.appendChild(path);
-sw.appendChild(svg);
-sw.style.width = "18px";
-sw.style.height = "14px";
-} else if (it.line) {
-const ns = "http://www.w3.org/2000/svg";
-const svg = document.createElementNS(ns, "svg");
-svg.setAttribute("viewBox", "0 0 22 12");
-svg.setAttribute("width", "22");
-svg.setAttribute("height", "12");
-const ln = document.createElementNS(ns, "line");
-ln.setAttribute("x1", "1");
-ln.setAttribute("y1", "6");
-ln.setAttribute("x2", "21");
-ln.setAttribute("y2", "6");
-ln.setAttribute("stroke", safeCssPaint(this.root, bg));
-ln.setAttribute("stroke-width", String(it.style?.width ?? 1.5));
-if (it.style?.dash && it.style.dash.length) ln.setAttribute("stroke-dasharray", it.style.dash.join(" "));
-svg.appendChild(ln);
-sw.appendChild(svg);
-sw.style.width = "22px";
-sw.style.height = "12px";
-} else {
-sw.style.background = safeCssPaint(this.root, bg);
-}
-this._applySlot(sw, "legend_swatch");
-row.appendChild(sw);
-row.appendChild(document.createTextNode(it.name));
-lg.appendChild(row);
-}
-root.appendChild(lg);
-this._legends.push(lg);
-return lg;
-}
-_positionLegend(lg, loc) {
-if (!lg) return;
-const rightInset = this.size.w - (this.plot.x + this.plot.w);
-const h = loc.includes("left") ? "left" : loc.includes("right") ? "right" : "center";
-const v = loc.includes("upper") ? "upper" : loc.includes("lower") ? "lower" : "center";
-const left = h === "left" ? this.plot.x + 6 : h === "center" ? this.plot.x + this.plot.w / 2 : null;
-const right = h === "right" ? rightInset + 6 : null;
-const top = v === "upper" ? this.plot.y + 6 : v === "center" ? this.plot.y + this.plot.h / 2 : null;
-const bottom = v === "lower" ? this.size.h - (this.plot.y + this.plot.h) + 6 : null;
-lg.style.setProperty("--xy-legend-left", left == null ? "auto" : left + "px");
-lg.style.setProperty("--xy-legend-right", right == null ? "auto" : right + "px");
-lg.style.setProperty("--xy-legend-top", top == null ? "auto" : top + "px");
-lg.style.setProperty("--xy-legend-bottom", bottom == null ? "auto" : bottom + "px");
-const tx = h === "center" ? "-50%" : "0";
-const ty = v === "center" ? "-50%" : "0";
-lg.style.setProperty("--xy-legend-transform", `translate(${tx},${ty})`);
-}
-_buildColorbar(root) {
-const cb = this.spec.colorbar;
-if (!cb) return;
-const box = document.createElement("div");
-const horizontal = cb.orientation === "horizontal";
-box.style.cssText = "position:absolute;pointer-events:none;z-index:4;";
-this._applySlot(box, "colorbar");
-const bar = document.createElement("div");
-const levels = Math.max(0, Number(cb.levels) || 0);
-let gradient;
-if (levels > 0) {
-const lut = buildLutData(cb.colormap || "viridis");
-const bands = [];
-for (let index = 0; index < levels; index++) {
-const sample = Math.min(255, Math.round(255 * (index + 0.5) / levels));
-const color = `rgb(${lut[sample * 4]},${lut[sample * 4 + 1]},${lut[sample * 4 + 2]})`;
-bands.push(`${color} ${100 * index / levels}% ${100 * (index + 1) / levels}%`);
-}
-gradient = `linear-gradient(to ${horizontal ? "right" : "top"},${bands.join(",")})`;
-} else {
-const stops = colormapStops(cb.colormap || "viridis");
-gradient = `linear-gradient(to ${horizontal ? "right" : "top"},${stops.map((c) =>
-`rgb(${c[0]},${c[1]},${c[2]})`).join(",")})`;
-}
-bar.style.cssText = horizontal
-? `position:absolute;inset:0 0 auto 0;height:${COLORBAR_THICKNESS}px;`
-: `position:absolute;inset:0 auto 0 0;width:${COLORBAR_THICKNESS}px;`;
-bar.style.setProperty("--xy-colorbar-gradient", gradient);
-this._applySlot(bar, "colorbar_bar");
-box.appendChild(bar);
-const domain = cb.domain || [0, 1];
-const lo = Number(domain[0]), hi = Number(domain[1]);
-const span = hi - lo || 1;
-const tickResult = linearTicks(lo, hi, 8);
-const hasExplicitTicks = Array.isArray(cb.ticks);
-const tickValues = hasExplicitTicks ? cb.ticks : tickResult.ticks;
-const tickStep = tickResult.step;
-for (const raw of tickValues) {
-const value = Number(raw);
-if (!Number.isFinite(value) || value < Math.min(lo, hi) || value > Math.max(lo, hi)) continue;
-const tick = document.createElement("span");
-tick.textContent = hasExplicitTicks ? fmtGeneral(value) : fmtLinear(value, tickStep);
-const fraction = (value - lo) / span;
-tick.style.cssText = horizontal
-? `position:absolute;left:${100 * fraction}%;top:${COLORBAR_THICKNESS + 2}px;transform:translateX(-50%);white-space:nowrap;`
-: `position:absolute;left:${COLORBAR_THICKNESS + 5}px;top:${100 * (1 - fraction)}%;transform:translateY(-50%);white-space:nowrap;`;
-this._applySlot(tick, "colorbar_tick");
-box.appendChild(tick);
-}
-if (cb.label) {
-const label = document.createElement("span");
-label.textContent = String(cb.label);
-label.style.cssText = horizontal
-? `position:absolute;left:50%;top:${COLORBAR_THICKNESS + 18}px;transform:translateX(-50%);white-space:nowrap;`
-: `position:absolute;left:${COLORBAR_THICKNESS + 40}px;top:50%;writing-mode:vertical-rl;transform:translateY(-50%) rotate(180deg);white-space:nowrap;`;
-this._applySlot(label, "colorbar_title");
-box.appendChild(label);
-}
-box.title = `${cb.label ? cb.label + ": " : ""}${domain[0]} – ${domain[1]}`;
-root.appendChild(box);
-this._colorbar = box;
-this._colorbarHorizontal = horizontal;
-this._positionColorbar();
-}
-_positionColorbar() {
-if (!this._colorbar) return;
-const horizontal = this._colorbarHorizontal;
-const compactVertical = !horizontal && this._compactVerticalColorbar;
-const gap = compactVertical ? COMPACT_COLORBAR_GAP : COLORBAR_GAP;
-this._colorbar.style.left = (horizontal
-? this.plot.x
-: this.plot.x + this.plot.w + this._rightAxisRoom + gap) + "px";
-this._colorbar.style.top = (horizontal
-? this.plot.y + this.plot.h + (this._bottomAxisRoom || 8)
-: this.plot.y) + "px";
-this._colorbar.style.width = (horizontal
-? this.plot.w
-: compactVertical ? COLORBAR_THICKNESS : 66) + "px";
-this._colorbar.style.height = (horizontal ? 50 : Math.max(24, this.plot.h)) + "px";
-this._colorbar.dataset.xyCompact = compactVertical ? "true" : "false";
-for (const node of this._colorbar.querySelectorAll(
-'[data-xy-slot="colorbar_tick"], [data-xy-slot="colorbar_title"]'
-)) {
-node.hidden = compactVertical;
-}
-}
-_initGl(buffer) {
-const dpr = window.devicePixelRatio || 1;
-this.dpr = dpr;
-this.canvas.width = this.plot.w * dpr;
-this.canvas.height = this.plot.h * dpr;
-this.chrome.width = this.size.w * dpr;
-this.chrome.height = this.size.h * dpr;
-this.chrome.style.width = this.size.w + "px";
-this.chrome.style.height = this.size.h + "px";
-this.overlay.width = this.size.w * dpr;
-this.overlay.height = this.size.h * dpr;
-this.overlay.style.width = this.size.w + "px";
-this.overlay.style.height = this.size.h + "px";
-XY_CONTEXT_GOVERNOR.reserve(this);
-const gl = this.canvas.getContext("webgl2", {
-antialias: false, premultipliedAlpha: true, alpha: true,
-});
-if (!gl) {
-XY_CONTEXT_GOVERNOR.cancel(this);
-throw new Error("webgl2 unavailable");
-}
-this.gl = gl;
-XY_CONTEXT_GOVERNOR.acquired(this);
-gl.enable(gl.BLEND);
-gl.blendFunc(gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
-this._progCache = new Map();
-this._glPrograms = this._progCache;
-this.quad = gl.createBuffer();
-this.quad._fcId = ++this._bufSeq;
-gl.bindBuffer(gl.ARRAY_BUFFER, this.quad);
-gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([0, 0, 1, 0, 0, 1, 1, 1]), gl.STATIC_DRAW);
-this.quadVao = gl.createVertexArray();
-gl.bindVertexArray(this.quadVao);
-gl.enableVertexAttribArray(ATTR_SLOTS.a_corner);
-gl.vertexAttribPointer(ATTR_SLOTS.a_corner, 2, gl.FLOAT, false, 0, 0);
-gl.vertexAttribDivisor(ATTR_SLOTS.a_corner, 0);
-gl.bindVertexArray(null);
-this.gpuTraces = this.spec.traces.map((t) => this._buildTrace(buffer, t));
-this._updatePickable();
-}
-_updatePickable() {
-this._pickable = this.gpuTraces.some(
-(t) => markOf(t.trace.kind).pointPick && (t.tier !== "density" || t.drill));
-if (this._pickable && !this.pickFbo) this._initPickTarget();
-this._syncModebarSelect?.();
-}
-_prog(key, vs, fs) {
-let p = this._progCache.get(key);
-if (!p) {
-p = makeProgram(this.gl, vs, fs);
-this._progCache.set(key, p);
-}
-return p;
-}
-get pointProg() { return this._prog("point", POINT_VS, POINT_FS); }
-get pointSimpleProg() { return this._prog("point-simple", POINT_SIMPLE_VS, POINT_SIMPLE_FS); }
-get lineProg() { return this._prog("line", LINE_VS, LINE_FS); }
-get segmentProg() { return this._prog("segment", SEGMENT_VS, SEGMENT_FS); }
-get meshProg() { return this._prog("mesh", MESH_VS, MESH_FS); }
-get areaProg() { return this._prog("area", AREA_VS, AREA_FS); }
-get rectProg() { return this._prog("rect", RECT_VS, RECT_FS); }
-get barProg() { return this._prog("bar", BAR_VS, RECT_FS); }
-get pickProg() { return this._prog("pick", PICK_VS, PICK_FS); }
-get densityProg() { return this._prog("density", GRID_VS, DENSITY_FS); }
-get heatmapProg() { return this._prog("heatmap", GRID_VS, HEATMAP_FS); }
-_lut(name) {
-if (this._lutCache.has(name)) return this._lutCache.get(name);
-const gl = this.gl;
-const tex = gl.createTexture();
-gl.bindTexture(gl.TEXTURE_2D, tex);
-gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 256, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, buildLutData(name));
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-this._lutCache.set(name, tex);
-return tex;
-}
-_paletteLut(palette) {
-const key = "pal:" + palette.join(",");
-if (this._lutCache.has(key)) return this._lutCache.get(key);
-const gl = this.gl;
-const data = new Uint8Array(256 * 4);
-for (let i = 0; i < 256; i++) {
-const c = hexColor(palette[i % palette.length]);
-data[i * 4] = c[0] * 255;
-data[i * 4 + 1] = c[1] * 255;
-data[i * 4 + 2] = c[2] * 255;
-data[i * 4 + 3] = 255;
-}
-const tex = gl.createTexture();
-gl.bindTexture(gl.TEXTURE_2D, tex);
-gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 256, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, data);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-this._lutCache.set(key, tex);
-return tex;
-}
-_buildTrace(buffer, t) {
-const gl = this.gl;
-const g = {
-trace: t,
-tier: t.tier,
-color: [0.3, 0.47, 0.66, 1],
-xAxis: typeof t.x_axis === "string" ? t.x_axis : "x",
-yAxis: typeof t.y_axis === "string" ? t.y_axis : "y",
-};
-if (t.tier === "density") {
-const d = t.density;
-const meta = this.spec.columns[d.buf];
-const raw = this._columnView(buffer, meta);
-const grid = d.enc === "log-u8" ? lodDecodeLogU8(raw, d.max) : raw;
-g.densityNormMax = d.max;
-g.density = {
-w: d.w, h: d.h, max: d.max, normMax: d.max, colormap: d.colormap,
-color: d.color ? parseColor(this.root, d.color, [0.3, 0.47, 0.66, 1]) : null,
-xRange: d.x_range, yRange: d.y_range,
-grid: lodCopyGrid(grid),
-tex: this._uploadGrid(grid, d.w, d.h, d.max),
-lut: this._lut(d.colormap),
-};
-g.sampleOverlay = this._buildDensitySample(t, d.sample, buffer);
-g._shownDensity = g.density;
-lodRememberDensity(this, g, g.density);
-return g;
-}
-markOf(t.kind).build(this, g, t, buffer);
-if (t.keys && Number.isInteger(t.keys.lo) && Number.isInteger(t.keys.hi)) {
-const lo = this._columnView(buffer, this.spec.columns[t.keys.lo]);
-const hi = this._columnView(buffer, this.spec.columns[t.keys.hi]);
-const count = Math.min(g.n || 0, lo.length, hi.length);
-g._transitionKeys = new Array(count);
-g._transitionKeyIndex = new Map();
-for (let i = 0; i < count; i++) {
-const key = `${hi[i]}:${lo[i]}`;
-if (g._transitionKeyIndex.has(key)) throw new Error("xy: duplicate binary animation key");
-g._transitionKeys[i] = key;
-g._transitionKeyIndex.set(key, i);
-}
-}
-return g;
-}
-_buildXY(g, t, buffer) {
-const x = this._columnView(buffer, this.spec.columns[t.x]);
-const y = this._columnView(buffer, this.spec.columns[t.y]);
-g.xMeta = { ...this.spec.columns[t.x] };
-g.yMeta = { ...this.spec.columns[t.y] };
-g.n = Math.min(x.length, y.length);
-g._cpu = { x, y, xMeta: g.xMeta, yMeta: g.yMeta };
-g.xBuf = this._upload(x);
-g.yBuf = this._upload(y);
-}
-_buildInstanceStyleChannels(g, t, buffer, widthName) {
-const channel = (name) => t.channels && t.channels[name];
-const artistScalar = Number(t.style && t.style.artist_alpha);
-const hasStyle = channel("opacity") || channel("artist_alpha") ||
-channel(widthName) || channel("symbol") || Number.isFinite(artistScalar);
-if (hasStyle) {
-const values = new Float32Array(g.n * 4);
-for (let i = 0; i < g.n; i++) {
-values[i * 4] = 1;
-values[i * 4 + 1] = Number.isFinite(artistScalar) ? artistScalar : -1;
-values[i * 4 + 2] = -1;
-values[i * 4 + 3] = -1;
-}
-const copy = (name, component, scale = 1) => {
-const spec = channel(name);
-if (!spec) return;
-const source = this._columnView(buffer, this.spec.columns[spec.buf]);
-for (let i = 0; i < g.n; i++) values[i * 4 + component] = source[i * (spec.components || 1)] * scale;
-};
-copy("opacity", 0);
-copy("artist_alpha", 1);
-copy(widthName, 2, this.dpr);
-copy("symbol", 3);
-g.styleBuf = this._upload(values);
-}
-const radius = channel("corner_radius");
-if (radius) {
-const source = this._columnView(buffer, this.spec.columns[radius.buf]);
-const components = radius.components || 1;
-const values = new Float32Array(g.n * 2);
-for (let i = 0; i < g.n; i++) {
-values[i * 2] = source[i * components] * this.dpr;
-values[i * 2 + 1] = (components > 1 ? source[i * components + 1] : source[i * components]) * this.dpr;
-}
-g.radiusBuf = this._upload(values);
-}
-if (t.stroke && t.stroke.mode === "direct_rgba") {
-g.strokeBuf = this._upload(this._columnView(buffer, this.spec.columns[t.stroke.buf]));
-}
-}
-_buildScatterMark(g, t, buffer) {
-this._buildXY(g, t, buffer);
-g.colorMode = 0;
-g.color = parseColor(this.root, t.color && t.color.color, [0.3, 0.47, 0.66, 1]);
-if (t.color && t.color.mode === "continuous") {
-g.colorMode = 1;
-g._cpu.color = this._columnView(buffer, this.spec.columns[t.color.buf]);
-g.cBuf = this._upload(g._cpu.color);
-g.lut = this._lut(t.color.colormap);
-} else if (t.color && t.color.mode === "categorical") {
-g.colorMode = 2;
-g._cpu.color = this._columnView(buffer, this.spec.columns[t.color.buf]);
-g.cBuf = this._upload(g._cpu.color);
-g.lut = this._paletteLut(t.color.palette);
-} else if (t.color && t.color.mode === "direct_rgba") {
-g.colorMode = 3;
-g._cpu.rgba = this._columnView(buffer, this.spec.columns[t.color.buf]);
-g.rgbaBuf = this._upload(g._cpu.rgba);
-}
-g.sizeMode = 0;
-g.size = (t.size && t.size.size) || 4.0;
-g.sizeRange = [2, 18];
-if (t.size && t.size.mode === "continuous") {
-g.sizeMode = 1;
-g._cpu.size = this._columnView(buffer, this.spec.columns[t.size.buf]);
-g.sBuf = this._upload(g._cpu.size);
-g.sizeRange = t.size.range_px;
-}
-this._buildInstanceStyleChannels(g, t, buffer, "stroke_width");
-this._pointMarkStyle(g, t);
-}
-_pointMarkStyle(g, t) {
-const s = t.style || {};
-g.symbol = { circle: 0, square: 1, diamond: 2, triangle: 3, cross: 4, hexagon: 5, pentagon: 6, star: 7, triangle_down: 8, triangle_left: 9, triangle_right: 10, x: 11, point: 12, pixel: 13, thin_diamond: 14, plus_line: 15, x_line: 16 }[s.symbol] || 0;
-g.pointStrokeWidth = Number(s.stroke_width) || 0;
-g.pointStrokeFace = !s.stroke && (!t.stroke || t.stroke.mode === "match_fill");
-g.pointStroke = s.stroke
-? parseColor(this.root, s.stroke, [g.color[0], g.color[1], g.color[2], 1])
-: null;
-}
-_sampleTraceSpec(parentTrace, sample) {
-return {
-id: parentTrace.id,
-kind: "scatter",
-name: parentTrace.name,
-style: sample.style || parentTrace.style || {},
-tier: "sampled",
-x: sample.x && sample.x.col,
-y: sample.y && sample.y.col,
-x_axis: parentTrace.x_axis,
-y_axis: parentTrace.y_axis,
-color: sample.color,
-size: sample.size,
-stroke: sample.stroke,
-channels: sample.channels,
-};
-}
-_buildDensitySample(parentTrace, sample, buffer) {
-if (!sample || !sample.x || !sample.y || sample.x.col === undefined || sample.y.col === undefined) {
-return null;
-}
-const trace = this._sampleTraceSpec(parentTrace, sample);
-const g = {
-trace,
-tier: "sampled",
-xAxis: typeof parentTrace.x_axis === "string" ? parentTrace.x_axis : "x",
-yAxis: typeof parentTrace.y_axis === "string" ? parentTrace.y_axis : "y",
-};
-this._buildScatterMark(g, trace, buffer);
-g.win = {
-x0: sample.x_range[0], x1: sample.x_range[1],
-y0: sample.y_range[0], y1: sample.y_range[1],
-};
-g.sample = { n: sample.n, visible: sample.visible };
-return g;
-}
-_destroyDensitySample(g) {
-const s = g && g.sampleOverlay;
-if (!s || !this.gl) return;
-for (const b of [s.xBuf, s.yBuf, s.cBuf, s.rgbaBuf, s.sBuf, s.styleBuf,
-s.strokeBuf, s.selBuf, s.dBuf]) {
-if (b) this.gl.deleteBuffer(b);
-}
-g.sampleOverlay = null;
-}
-_applyDensitySample(g, sample, buffers) {
-this._destroyDensitySample(g);
-if (!sample || !sample.x || !sample.y || sample.x.buf === undefined || sample.y.buf === undefined) {
-this._refreshReductionBadges();
-return;
-}
-const gl = this.gl;
-const trace = {
-id: g.trace.id,
-kind: "scatter",
-name: g.trace.name,
-style: sample.style || g.trace.style || {},
-tier: "sampled",
-x_axis: g.trace.x_axis,
-y_axis: g.trace.y_axis,
-color: sample.color,
-size: sample.size,
-stroke: sample.stroke,
-channels: sample.channels,
-};
-const s = {
-trace,
-tier: "sampled",
-xAxis: g.xAxis,
-yAxis: g.yAxis,
-xBuf: gl.createBuffer(),
-yBuf: gl.createBuffer(),
-xMeta: { offset: sample.x.offset, scale: sample.x.scale },
-yMeta: { offset: sample.y.offset, scale: sample.y.scale },
-n: Math.min(sample.x.len, sample.y.len),
-win: {
-x0: sample.x_range[0], x1: sample.x_range[1],
-y0: sample.y_range[0], y1: sample.y_range[1],
-},
-sample: { n: sample.n, visible: sample.visible },
-selActive: false,
-colorMode: 0,
-color: parseColor(this.root, sample.color && sample.color.color, [0.3, 0.47, 0.66, 1]),
-sizeMode: 0,
-size: (sample.size && sample.size.size) || 4.0,
-sizeRange: [2, 18],
-};
-gl.bindBuffer(gl.ARRAY_BUFFER, s.xBuf);
-gl.bufferData(gl.ARRAY_BUFFER, this._asF32(buffers[sample.x.buf]), gl.STATIC_DRAW);
-gl.bindBuffer(gl.ARRAY_BUFFER, s.yBuf);
-gl.bufferData(gl.ARRAY_BUFFER, this._asF32(buffers[sample.y.buf]), gl.STATIC_DRAW);
-if (sample.color && sample.color.buf !== undefined) {
-s.colorMode = sample.color.mode === "continuous" ? 1 :
-(sample.color.mode === "categorical" ? 2 : 3);
-const colorValues = sample.color.dtype === "u8"
-? this._asU8(buffers[sample.color.buf])
-: this._asF32(buffers[sample.color.buf]);
-const colorBufferName = s.colorMode === 3 ? "rgbaBuf" : "cBuf";
-s[colorBufferName] = gl.createBuffer();
-s[colorBufferName]._fcType = colorValues instanceof Uint8Array ? gl.UNSIGNED_BYTE : gl.FLOAT;
-gl.bindBuffer(gl.ARRAY_BUFFER, s[colorBufferName]);
-gl.bufferData(gl.ARRAY_BUFFER, colorValues, gl.STATIC_DRAW);
-if (s.colorMode !== 3) {
-s.lut = sample.color.mode === "continuous"
-? this._lut(sample.color.colormap)
-: this._paletteLut(sample.color.palette);
-}
-}
-if (sample.size && sample.size.mode === "continuous") {
-s.sizeMode = 1;
-s.sBuf = gl.createBuffer();
-gl.bindBuffer(gl.ARRAY_BUFFER, s.sBuf);
-gl.bufferData(gl.ARRAY_BUFFER, this._asF32(buffers[sample.size.buf]), gl.STATIC_DRAW);
-s.sizeRange = sample.size.range_px;
-}
-const channel = (name) => sample.channels && sample.channels[name];
-const artistScalar = Number(trace.style && trace.style.artist_alpha);
-if (channel("opacity") || channel("artist_alpha") || channel("stroke_width") ||
-channel("symbol") || Number.isFinite(artistScalar)) {
-const values = new Float32Array(s.n * 4);
-for (let i = 0; i < s.n; i++) {
-values[i * 4] = 1;
-values[i * 4 + 1] = Number.isFinite(artistScalar) ? artistScalar : -1;
-values[i * 4 + 2] = -1;
-values[i * 4 + 3] = -1;
-}
-const copy = (name, component, scale = 1) => {
-const spec = channel(name);
-if (!spec) return;
-const source = spec.dtype === "u8"
-? this._asU8(buffers[spec.buf])
-: this._asF32(buffers[spec.buf]);
-const components = spec.components || 1;
-for (let i = 0; i < s.n; i++) values[i * 4 + component] = source[i * components] * scale;
-};
-copy("opacity", 0);
-copy("artist_alpha", 1);
-copy("stroke_width", 2, this.dpr);
-copy("symbol", 3);
-s.styleBuf = this._upload(values);
-}
-if (sample.stroke && sample.stroke.mode === "direct_rgba") {
-s.strokeBuf = this._upload(this._asU8(buffers[sample.stroke.buf]));
-}
-this._pointMarkStyle(s, trace);
-g.sampleOverlay = s;
-this._refreshReductionBadges();
-}
-_drawDensitySample(g, x0, x1, y0, y1, opacityScale = 1) {
-const s = g && g.sampleOverlay;
-if (!s || !s.n || !this._viewOverlaps(s.win)) return;
-this._drawPoints(
-s,
-this._map(s.xMeta, x0, x1, s.xAxis),
-this._map(s.yMeta, y0, y1, s.yAxis),
-opacityScale
-);
-}
-_resolveMarkFill(style, markColor) {
-const fill = style && style.fill;
-if (!fill || !Array.isArray(fill.stops) || fill.stops.length < 2) return null;
-const mode = fill.space === "plot" ? 2 : 1;
-const dir = { down: 0, up: 1, left: 2, right: 3 }[fill.dir] ?? 0;
-const count = Math.min(fill.stops.length, 8);
-const pos = new Float32Array(8);
-const colors = new Float32Array(32);
-for (let i = 0; i < count; i++) {
-const stop = fill.stops[i] || [];
-pos[i] = Math.min(Math.max(Number(stop[0]) || 0, 0), 1);
-const expr = String(stop[1] || "").trim();
-const c = expr.toLowerCase() === "currentcolor"
-? markColor
-: parseColor(this.root, expr, markColor);
-colors[i * 4] = c[0] * c[3];
-colors[i * 4 + 1] = c[1] * c[3];
-colors[i * 4 + 2] = c[2] * c[3];
-colors[i * 4 + 3] = c[3];
-}
-return { mode, dir, count, pos, colors };
-}
-_setGradientUniforms(prog, grad) {
-const gl = this.gl;
-const u = (n) => uniformOf(gl, prog, n);
-if (!grad) {
-gl.uniform1i(u("u_gradMode"), 0);
-return;
-}
-gl.uniform1i(u("u_gradMode"), grad.mode);
-gl.uniform1i(u("u_gradDir"), grad.dir);
-gl.uniform1i(u("u_gradCount"), grad.count);
-gl.uniform1fv(u("u_gradPos"), grad.pos);
-gl.uniform4fv(u("u_gradColor"), grad.colors);
-}
-_fillOpacity(style, fallback = 1) {
-return Number(style.opacity ?? fallback) * Number(style.fill_opacity ?? 1);
-}
-_strokeOpacity(style, fallback = 1) {
-return Number(style.opacity ?? fallback) * Number(style.stroke_opacity ?? 1);
-}
-_setRectStyleUniforms(prog, g) {
-const gl = this.gl;
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_res"), this.canvas.width, this.canvas.height);
-const cr = g.cornerRadius || [0, 0];
-gl.uniform2f(u("u_radius"), cr[0] * this.dpr, cr[1] * this.dpr);
-gl.uniform1f(u("u_strokeWidth"), (g.strokeWidth || 0) * this.dpr);
-const sc = g.strokeColor || [0, 0, 0, 0];
-gl.uniform4f(u("u_stroke"), sc[0], sc[1], sc[2], sc[3]);
-gl.uniform1i(u("u_strokeMode"), g.strokeBuf ? 1 : 0);
-gl.uniform1f(u("u_strokeOpacity"), this._strokeOpacity(g.trace.style || {}));
-this._setGradientUniforms(prog, g.grad);
-}
-_rectMarkStyleGpu(g, t) {
-const s = t.style || {};
-const cr = s.corner_radius;
-g.cornerRadius = Array.isArray(cr)
-? [Number(cr[0]) || 0, Number(cr[1]) || 0]
-: [Number(cr) || 0, Number(cr) || 0];
-g.strokeWidth = Number(s.stroke_width) || 0;
-const opaque = [g.color[0], g.color[1], g.color[2], 1];
-g.strokeColor = s.stroke ? parseColor(this.root, s.stroke, opaque) : opaque;
-g.grad = this._resolveMarkFill(s, g.color);
-}
-_smoothArrays(t, x, y, base, n) {
-if (!t.style || t.style.curve !== "smooth") return null;
-return xySmoothResample(x, y, base || null, n, 32768);
-}
-_stepArrays(t, x, y, n) {
-const where = t.style && t.style.step;
-if (!where || n < 2) return null;
-const perGap = where === "mid" ? 3 : 2;
-const m = 1 + (n - 1) * perGap;
-const sx = new Float32Array(m);
-const sy = new Float32Array(m);
-sx[0] = x[0];
-sy[0] = y[0];
-let j = 1;
-for (let i = 1; i < n; i++) {
-if (where === "pre") {
-sx[j] = x[i - 1]; sy[j] = y[i]; j++;
-sx[j] = x[i]; sy[j] = y[i]; j++;
-} else if (where === "mid") {
-const mid = (x[i - 1] + x[i]) * 0.5;
-sx[j] = mid; sy[j] = y[i - 1]; j++;
-sx[j] = mid; sy[j] = y[i]; j++;
-sx[j] = x[i]; sy[j] = y[i]; j++;
-} else {
-sx[j] = x[i]; sy[j] = y[i - 1]; j++;
-sx[j] = x[i]; sy[j] = y[i]; j++;
-}
-}
-return { x: sx, y: sy, n: m };
-}
-_buildLineMark(g, t, buffer) {
-const x = this._columnView(buffer, this.spec.columns[t.x]);
-const y = this._columnView(buffer, this.spec.columns[t.y]);
-g.xMeta = { ...this.spec.columns[t.x] };
-g.yMeta = { ...this.spec.columns[t.y] };
-g.n = Math.min(x.length, y.length);
-g._cpu = { x, y, xMeta: g.xMeta, yMeta: g.yMeta };
-const sm = this._smoothArrays(t, x, y, null, g.n);
-const src = sm || { x, y, n: g.n };
-const st = this._stepArrays(t, src.x, src.y, src.n);
-const drawX = st ? st.x : src.x;
-const drawY = st ? st.y : src.y;
-g.xBuf = this._upload(drawX);
-g.yBuf = this._upload(drawY);
-g.n = st ? st.n : src.n;
-g._dashX = drawX;
-g._dashY = drawY;
-g.color = parseColor(this.root, t.style && t.style.color, [0.3, 0.47, 0.66, 1]);
-}
-_buildSegmentMark(g, t, buffer) {
-const x0 = this._columnView(buffer, this.spec.columns[t.x0]);
-const x1 = this._columnView(buffer, this.spec.columns[t.x1]);
-const y0 = this._columnView(buffer, this.spec.columns[t.y0]);
-const y1 = this._columnView(buffer, this.spec.columns[t.y1]);
-g.x0Meta = { ...this.spec.columns[t.x0] };
-g.x1Meta = { ...this.spec.columns[t.x1] };
-g.y0Meta = { ...this.spec.columns[t.y0] };
-g.y1Meta = { ...this.spec.columns[t.y1] };
-g.n = Math.min(x0.length, x1.length, y0.length, y1.length);
-g.x0Buf = this._upload(x0);
-g.x1Buf = this._upload(x1);
-g.y0Buf = this._upload(y0);
-g.y1Buf = this._upload(y1);
-g._segmentCpu = { x0, x1, y0, y1 };
-g.color = parseColor(this.root, t.style && t.style.color, [0.3, 0.47, 0.66, 1]);
-g.colorMode = 0;
-if (t.color && t.color.mode === "continuous") {
-g.colorMode = 1;
-g.cBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-g.lut = this._lut(t.color.colormap);
-} else if (t.color && t.color.mode === "categorical") {
-g.colorMode = 2;
-g.cBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-g.lut = this._paletteLut(t.color.palette);
-} else if (t.color && t.color.mode === "direct_rgba") {
-g.colorMode = 3;
-g.rgbaBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-}
-this._buildInstanceStyleChannels(g, t, buffer, "width");
-g._cpu = { x: x0, y: y1, xMeta: g.x0Meta, yMeta: g.y1Meta };
-}
-_buildMeshMark(g, t, buffer) {
-for (const name of ["x0", "x1", "x2", "y0", "y1", "y2"]) {
-const values = this._columnView(buffer, this.spec.columns[t[name]]);
-g[name + "Meta"] = { ...this.spec.columns[t[name]] };
-g[name + "Buf"] = this._upload(values);
-g.n = g.n === undefined ? values.length : Math.min(g.n, values.length);
-}
-g.color = parseColor(this.root, t.color && t.color.color, [0.3, 0.47, 0.66, 1]);
-g.colorMode = 0;
-if (t.color && t.color.mode === "continuous") {
-g.colorMode = 1;
-g.cBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-g.lut = this._lut(t.color.colormap);
-} else if (t.color && t.color.mode === "categorical") {
-g.colorMode = 2;
-g.cBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-g.lut = this._paletteLut(t.color.palette);
-} else if (t.color && t.color.mode === "direct_rgba") {
-g.colorMode = 3;
-g.rgbaBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-}
-this._buildInstanceStyleChannels(g, t, buffer, "stroke_width");
-const style = t.style || {};
-g.meshStrokeWidth = Number(style.stroke_width) || 0;
-g.meshStroke = parseColor(this.root, style.stroke || "transparent", [0, 0, 0, 0]);
-}
-_buildHexbinMark(g, t, buffer) {
-const cx = this._columnView(buffer, this.spec.columns[t.x]);
-const cy = this._columnView(buffer, this.spec.columns[t.y]);
-const xMeta = { ...this.spec.columns[t.x] };
-const yMeta = { ...this.spec.columns[t.y] };
-const n = Math.min(cx.length, cy.length);
-const style = t.style || {};
-const dx = (Number(style.hex_dx) || 0) * (xMeta.scale || 1);
-const dy = (Number(style.hex_dy) || 0) * (yMeta.scale || 1);
-const ringX = [0, dx / 2, dx / 2, 0, -dx / 2, -dx / 2, 0];
-const ringY = [-dy / 3, -dy / 6, dy / 6, dy / 3, dy / 6, -dy / 6, -dy / 3];
-const parts = {};
-for (const name of ["x0", "x1", "x2", "y0", "y1", "y2"]) parts[name] = new Float32Array(n * 6);
-for (let i = 0; i < n; i++) {
-const px = cx[i], py = cy[i];
-for (let k = 0; k < 6; k++) {
-const j = i * 6 + k;
-parts.x0[j] = px;
-parts.y0[j] = py;
-parts.x1[j] = px + ringX[k];
-parts.y1[j] = py + ringY[k];
-parts.x2[j] = px + ringX[k + 1];
-parts.y2[j] = py + ringY[k + 1];
-}
-}
-for (const name of ["x0", "x1", "x2"]) {
-g[name + "Meta"] = { ...xMeta };
-g[name + "Buf"] = this._upload(parts[name]);
-}
-for (const name of ["y0", "y1", "y2"]) {
-g[name + "Meta"] = { ...yMeta };
-g[name + "Buf"] = this._upload(parts[name]);
-}
-g.n = n * 6;
-g.color = parseColor(this.root, t.color && t.color.color, [0.3, 0.47, 0.66, 1]);
-g.colorMode = 0;
-if (t.color && (t.color.mode === "continuous" || t.color.mode === "categorical")) {
-g.colorMode = t.color.mode === "continuous" ? 1 : 2;
-const cval = this._columnView(buffer, this.spec.columns[t.color.buf]);
-const expanded = new Float32Array(n * 6);
-for (let i = 0; i < n; i++) expanded.fill(cval[i], i * 6, i * 6 + 6);
-g.cBuf = this._upload(expanded);
-g.lut = t.color.mode === "continuous" ? this._lut(t.color.colormap) : this._paletteLut(t.color.palette);
-}
-g.meshStrokeWidth = Number(style.stroke_width) || 0;
-g.meshStroke = parseColor(this.root, style.stroke || "transparent", [0, 0, 0, 0]);
-}
-_buildAreaMark(g, t, buffer) {
-const x = this._columnView(buffer, this.spec.columns[t.x]);
-const y = this._columnView(buffer, this.spec.columns[t.y]);
-const base = this._columnView(buffer, this.spec.columns[t.base]);
-g.xMeta = { ...this.spec.columns[t.x] };
-g.yMeta = { ...this.spec.columns[t.y] };
-g.baseMeta = { ...this.spec.columns[t.base] };
-g.n = Math.min(x.length, y.length, base.length);
-g._cpu = { x, y, base, xMeta: g.xMeta, yMeta: g.yMeta };
-const sm = this._smoothArrays(t, x, y, base, g.n);
-g.xBuf = this._upload(sm ? sm.x : x);
-g.yBuf = this._upload(sm ? sm.y : y);
-g.baseBuf = this._upload(sm ? sm.extra : base);
-if (sm) g.n = sm.n;
-g._dashX = sm ? sm.x : x;
-g._dashY = sm ? sm.y : y;
-g.color = parseColor(this.root, t.style && t.style.color, [0.3, 0.47, 0.66, 1]);
-g.lineColor = parseColor(this.root, t.style && (t.style.line_color || t.style.color), g.color);
-g.grad = this._resolveMarkFill(t.style, g.color);
-}
-_buildRectMark(g, t, buffer) {
-const x0 = this._columnView(buffer, this.spec.columns[t.x0]);
-const x1 = this._columnView(buffer, this.spec.columns[t.x1]);
-const y0 = this._columnView(buffer, this.spec.columns[t.y0]);
-const y1 = this._columnView(buffer, this.spec.columns[t.y1]);
-g.x0Meta = { ...this.spec.columns[t.x0] };
-g.x1Meta = { ...this.spec.columns[t.x1] };
-g.y0Meta = { ...this.spec.columns[t.y0] };
-g.y1Meta = { ...this.spec.columns[t.y1] };
-g.n = Math.min(x0.length, x1.length, y0.length, y1.length);
-g._cpuRect = {
-x0, x1, y0, y1,
-x0Meta: g.x0Meta, x1Meta: g.x1Meta, y0Meta: g.y0Meta, y1Meta: g.y1Meta,
-};
-g.x0Buf = this._upload(x0);
-g.x1Buf = this._upload(x1);
-g.y0Buf = this._upload(y0);
-g.y1Buf = this._upload(y1);
-g.color = parseColor(this.root, t.style && t.style.color, [0.3, 0.47, 0.66, 1]);
-g.colorMode = 0;
-if (t.color && t.color.mode === "continuous") {
-g.colorMode = 1;
-g.cBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-g.lut = this._lut(t.color.colormap);
-} else if (t.color && t.color.mode === "categorical") {
-g.colorMode = 2;
-g.cBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-g.lut = this._paletteLut(t.color.palette);
-} else if (t.color && t.color.mode === "direct_rgba") {
-g.colorMode = 3;
-g.rgbaBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-}
-this._buildInstanceStyleChannels(g, t, buffer, "stroke_width");
-this._rectMarkStyleGpu(g, t);
-}
-_buildBarMark(g, t, buffer) {
-const b = t.bar;
-if (!b) return this._buildRectMark(g, t, buffer);
-const pos = this._columnView(buffer, this.spec.columns[b.pos]);
-const v1 = this._columnView(buffer, this.spec.columns[b.value1]);
-g.posMeta = { ...this.spec.columns[b.pos] };
-g.value1Meta = { ...this.spec.columns[b.value1] };
-g.n = Math.min(pos.length, v1.length);
-g.posBuf = this._upload(pos);
-g.value1Buf = this._upload(v1);
-g.orientation = b.orientation === "horizontal" ? 1 : 0;
-g.value0Const = b.value0_const ?? 0;
-g.value0Mode = b.value0 === undefined ? 0 : 1;
-g.width = b.width;
-if (g.value0Mode === 1) {
-const v0 = this._columnView(buffer, this.spec.columns[b.value0]);
-g.value0Meta = { ...this.spec.columns[b.value0] };
-g.n = Math.min(g.n, v0.length);
-g._cpuValue0 = v0;
-g.value0Buf = this._upload(v0);
-}
-g._cpuBar = {
-pos,
-value1: v1,
-value0: g._cpuValue0 || null,
-posMeta: g.posMeta,
-value1Meta: g.value1Meta,
-value0Meta: g.value0Meta || null,
-value0Const: g.value0Const,
-width: g.width,
-};
-g._cpu = g.orientation === 1
-? { x: v1, y: pos, xMeta: g.value1Meta, yMeta: g.posMeta, value0: g._cpuValue0 }
-: { x: pos, y: v1, xMeta: g.posMeta, yMeta: g.value1Meta, value0: g._cpuValue0 };
-g.color = parseColor(this.root, t.style && t.style.color, [0.3, 0.47, 0.66, 1]);
-g.colorMode = 0;
-if (t.color && t.color.mode === "continuous") {
-g.colorMode = 1;
-g.cBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-g.lut = this._lut(t.color.colormap);
-} else if (t.color && t.color.mode === "categorical") {
-g.colorMode = 2;
-g.cBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-g.lut = this._paletteLut(t.color.palette);
-} else if (t.color && t.color.mode === "direct_rgba") {
-g.colorMode = 3;
-g.rgbaBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-}
-this._buildInstanceStyleChannels(g, t, buffer, "stroke_width");
-this._rectMarkStyleGpu(g, t);
-}
-_buildHeatmapMark(g, t, buffer) {
-const h = t.heatmap;
-const truecolor = Array.isArray(h.rgba_bufs);
-const grid = truecolor
-? h.rgba_bufs.map((index) => this._columnView(buffer, this.spec.columns[index]))
-: this._columnView(buffer, this.spec.columns[h.buf]);
-g.heatmap = {
-w: h.w,
-h: h.h,
-xRange: h.x_range,
-yRange: h.y_range,
-colormap: h.colormap,
-truecolor,
-tex: truecolor ? this._uploadRgbaGrid(grid, h.w, h.h) : this._uploadHeatmapGrid(grid, h.w, h.h),
-lut: truecolor ? null : this._lut(h.colormap),
-};
-if (!truecolor) g._cpuHeatmap = { grid };
-}
-_uploadRgbaGrid(channels, w, h) {
-const gl = this.gl;
-const tex = gl.createTexture();
-const data = new Uint8Array(w * h * 4);
-for (let index = 0; index < w * h; index++) {
-for (let channel = 0; channel < 4; channel++) {
-data[index * 4 + channel] = Math.round(255 * Math.max(0, Math.min(1, channels[channel][index])));
-}
-}
-gl.bindTexture(gl.TEXTURE_2D, tex);
-gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, w, h, 0, gl.RGBA, gl.UNSIGNED_BYTE, data);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-return tex;
-}
-_uploadGrid(f32, w, h, maxVal) {
-const gl = this.gl;
-const tex = gl.createTexture();
-lodWriteGridTexture(gl, tex, f32, w, h, maxVal);
-return tex;
-}
-_uploadHeatmapGrid(f32, w, h) {
-const gl = this.gl;
-const tex = gl.createTexture();
-const data = new Uint8Array(f32.length);
-for (let i = 0; i < f32.length; i++) {
-const v = f32[i];
-if (Number.isFinite(v)) {
-data[i] = Math.max(1, Math.min(255, Math.round(1 + 254 * Math.max(0, Math.min(1, v)))));
-}
-}
-gl.bindTexture(gl.TEXTURE_2D, tex);
-const align = gl.getParameter(gl.UNPACK_ALIGNMENT);
-gl.pixelStorei(gl.UNPACK_ALIGNMENT, 1);
-gl.texImage2D(gl.TEXTURE_2D, 0, gl.R8, w, h, 0, gl.RED, gl.UNSIGNED_BYTE, data);
-gl.pixelStorei(gl.UNPACK_ALIGNMENT, align);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-return tex;
-}
-_columnView(buffer, meta) {
-const split = Array.isArray(buffer);
-if (split !== Number.isInteger(meta.buf)) {
-throw new Error(
-split
-? "xy: transport delivered a buffer list but the spec column has no wire-buffer index"
-: "xy: spec column carries a wire-buffer index but the transport delivered one blob",
-);
-}
-const span = xyByteSpan(split ? buffer[meta.buf] : buffer, "chart payload");
-const relativeOffset = Number(meta.byte_offset);
-const length = Number(meta.len);
-if (!Number.isSafeInteger(relativeOffset) || relativeOffset < 0 ||
-!Number.isSafeInteger(length) || length < 0) {
-throw new RangeError("column offset/length must be non-negative safe integers");
-}
-const bytesPerElement = meta.dtype === "u8" ? 1 : 4;
-const absoluteOffset = span.byteOffset + relativeOffset;
-const end = relativeOffset + length * bytesPerElement;
-if (end > span.byteLength) throw new RangeError("column extends past chart payload");
-if (absoluteOffset % bytesPerElement !== 0) throw new RangeError("column is misaligned");
-if (meta.dtype === "u8") return new Uint8Array(span.buffer, absoluteOffset, length);
-if (meta.dtype === "u32") return new Uint32Array(span.buffer, absoluteOffset, length);
-return new Float32Array(span.buffer, absoluteOffset, length);
-}
-_upload(view) {
-const gl = this.gl;
-const buf = gl.createBuffer();
-buf._fcId = ++this._bufSeq;
-buf._fcType = view instanceof Uint8Array ? gl.UNSIGNED_BYTE : gl.FLOAT;
-gl.bindBuffer(gl.ARRAY_BUFFER, buf);
-gl.bufferData(gl.ARRAY_BUFFER, view, gl.STATIC_DRAW);
-return buf;
-}
-_bindVao(g, key, parts, setup) {
-const gl = this.gl;
-if (!g._vaos) g._vaos = new Map();
-const sig = parts.join("|");
-let entry = g._vaos.get(key);
-if (!entry || entry.sig !== sig) {
-if (entry) gl.deleteVertexArray(entry.vao);
-const vao = gl.createVertexArray();
-gl.bindVertexArray(vao);
-setup();
-entry = { vao, sig };
-g._vaos.set(key, entry);
-} else {
-gl.bindVertexArray(entry.vao);
-}
-}
-_deleteVaos(g) {
-if (!g || !g._vaos) return;
-const gl = this.gl;
-if (gl) for (const { vao } of g._vaos.values()) gl.deleteVertexArray(vao);
-g._vaos = null;
-}
-_vaoAttr(slot, buf, byteOffset, divisor, size = 1, normalized = false) {
-const gl = this.gl;
-gl.bindBuffer(gl.ARRAY_BUFFER, buf);
-gl.enableVertexAttribArray(slot);
-gl.vertexAttribPointer(slot, size, buf._fcType || gl.FLOAT, normalized, 0, byteOffset);
-gl.vertexAttribDivisor(slot, divisor);
-}
-_initPickTarget() {
-const gl = this.gl;
-this.pickTex = gl.createTexture();
-this._allocPickTex();
-this.pickFbo = gl.createFramebuffer();
-gl.bindFramebuffer(gl.FRAMEBUFFER, this.pickFbo);
-gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, this.pickTex, 0);
-gl.bindFramebuffer(gl.FRAMEBUFFER, null);
-this._pickDirty = true;
-}
-_allocPickTex() {
-const gl = this.gl;
-gl.bindTexture(gl.TEXTURE_2D, this.pickTex);
-gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, this.canvas.width, this.canvas.height, 0,
-gl.RGBA, gl.UNSIGNED_BYTE, null);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
-this._pickW = this.canvas.width;
-this._pickH = this.canvas.height;
-}
-_map(meta, lo, hi, axisId = null) {
-if (!axisId) {
-const mul = 2 / ((hi - lo) * meta.scale);
-const add = ((meta.offset - lo) / (hi - lo)) * 2 - 1;
-return [mul, add];
-}
-const axis = this._axis(axisId);
-const c0 = this._axisCoord(axis, lo);
-const c1 = this._axisCoord(axis, hi);
-if (![c0, c1].every(Number.isFinite) || c1 === c0) return [0, -2];
-const mul = 2 / (c1 - c0);
-const add = -1 - c0 * mul;
-return [mul, add];
-}
-_mapConst(value, lo, hi, axisId = null) {
-if (!axisId) return ((value - lo) / (hi - lo)) * 2 - 1;
-const axis = this._axis(axisId);
-const c = this._axisCoord(axis, value);
-const c0 = this._axisCoord(axis, lo);
-const c1 = this._axisCoord(axis, hi);
-if (![c, c0, c1].every(Number.isFinite) || c1 === c0) return -2;
-return ((c - c0) / (c1 - c0)) * 2 - 1;
-}
-_edgePadForValue(value, lo, hi, pixels) {
-if (!Number.isFinite(value) || !Number.isFinite(lo) || !Number.isFinite(hi) || hi === lo) return 0;
-const span = Math.abs(hi - lo);
-const eps = span * 1e-10 + 1e-12;
-const px = Math.max(1, pixels || 1);
-const padPx = Math.max(2, Math.ceil(this.dpr || 1));
-if (Math.abs(value - lo) <= eps) return -(2 * padPx) / px;
-if (Math.abs(value - hi) <= eps) return (2 * padPx) / px;
-return 0;
-}
-_setAxisUniforms(prog, prefix, meta, axisId) {
-const gl = this.gl;
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u(`${prefix}meta`), meta && Number.isFinite(meta.offset) ? meta.offset : 0, meta && meta.scale ? meta.scale : 1);
-gl.uniform1i(u(`${prefix}mode`), this._axisMode(axisId));
-}
-draw(keepPick = false) {
-if (this._destroyed || this._glLost || !this.gl) return;
-this._updateZoomMenuLabel?.();
-if (this._raf) {
-this._rafKeepPick = this._rafKeepPick && keepPick;
-return;
-}
-this._rafKeepPick = keepPick;
-this._raf = requestAnimationFrame(() => {
-this._raf = null;
-if (this._destroyed) return;
-this._drawNow();
-});
-}
-_drawNow() {
-if (this._destroyed || !this.gl || this._glLost) return;
-this._healStaleTheme();
-const gl = this.gl;
-const { x0, x1, y0, y1 } = this.view;
-gl.bindFramebuffer(gl.FRAMEBUFFER, null);
-gl.viewport(0, 0, this.canvas.width, this.canvas.height);
-gl.clearColor(0, 0, 0, 0);
-gl.clear(gl.COLOR_BUFFER_BIT);
-const drawTrace = (g) => {
-if (g.tier === "density") {
-const [gx0, gx1] = this._axisRange(g.xAxis);
-const [gy0, gy1] = this._axisRange(g.yAxis);
-lodDrawDensityTier(this, g, gx0, gx1, gy0, gy1);
-return;
-}
-markOf(g.trace.kind).draw(this, g, x0, x1, y0, y1);
-};
-for (const g of this._transitionOldTraces || []) drawTrace(g);
-for (const g of this.gpuTraces) {
-drawTrace(g);
-}
-this._drawHoverState();
-this._repositionTooltip();
-if (!this._rafKeepPick) this._pickDirty = true;
-this._rafKeepPick = false;
-this._drawChrome();
-this._renderLassoSelection?.();
-}
-_now() {
-return performance.now();
-}
-_canDrawSimplePoints(g) {
-return g.colorMode === 0 && g.sizeMode === 0 && !g.selActive &&
-!g.rgbaBuf && !g.styleBuf && !g.strokeBuf &&
-(g.symbol || 0) === 0 && (g.pointStrokeWidth || 0) <= 0 &&
-Math.max(g.lodBlendShown ?? 0, g.lodBlend ?? 0) <= 0.001;
-}
-_drawPoints(g, xm, ym, opacityScale = 1) {
-opacityScale *= g._transitionOpacity ?? 1;
-const animationScale = g._transitionScale ?? 1;
-if (this._canDrawSimplePoints(g)) {
-this._drawSimplePoints(g, xm, ym, opacityScale);
-return;
-}
-const gl = this.gl;
-const prog = this.pointProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_xmap"), xm[0], xm[1]);
-gl.uniform2f(u("u_ymap"), ym[0], ym[1]);
-this._setAxisUniforms(prog, "u_x", g.xMeta, g.xAxis);
-this._setAxisUniforms(prog, "u_y", g.yMeta, g.yAxis);
-gl.uniform1f(u("u_dpr"), this.dpr);
-const transitionOn = !!(g._transitionPrevXBuf && g._transitionPrevYBuf);
-gl.uniform1i(u("u_transitionActive"), transitionOn ? 1 : 0);
-gl.uniform1f(u("u_transitionProgress"), g._transitionPositionProgress ?? 1);
-gl.uniform1f(u("u_size"), g.size * animationScale);
-gl.uniform1i(u("u_sizeMode"), g.sizeMode);
-gl.uniform2f(u("u_sizeRange"), g.sizeRange[0] * animationScale, g.sizeRange[1] * animationScale);
-gl.uniform1i(u("u_colorMode"), g.colorMode);
-const markOpacity = this._fillOpacity(g.trace.style, 0.8) * opacityScale;
-gl.uniform1f(u("u_opacity"), markOpacity);
-gl.uniform1f(u("u_selectedOpacity"), this._markStateNumber("selected", "opacity", 1));
-gl.uniform1f(u("u_unselectedOpacity"), this._markStateNumber("unselected", "opacity", 0.12));
-const stateColor = (loc, expr) => {
-const c = expr ? parseColor(this.root, expr, [0, 0, 0, 1]) : null;
-gl.uniform4f(loc, c ? c[0] : 0, c ? c[1] : 0, c ? c[2] : 0, c ? 1 : 0);
-};
-stateColor(u("u_selColor"), this._markStateValue("selected", "color"));
-stateColor(u("u_unselColor"), this._markStateValue("unselected", "color"));
-const [r, gg, b, a] = g.color;
-gl.uniform4f(u("u_color"), r, gg, b, a);
-gl.uniform1i(u("u_symbol"), g.symbol || 0);
-const sc = g.pointStroke;
-gl.uniform1f(u("u_ptStrokeWidth"), (g.pointStrokeWidth || 0) * this.dpr);
-gl.uniform1i(u("u_ptStrokeFace"), g.pointStrokeFace ? 1 : 0);
-gl.uniform1i(u("u_strokeMode"), g.strokeBuf ? 1 : 0);
-gl.uniform1f(u("u_strokeOpacity"), this._strokeOpacity(g.trace.style, 0.8) * opacityScale);
-gl.uniform4f(u("u_ptStroke"), sc ? sc[0] : 0, sc ? sc[1] : 0,
-sc ? sc[2] : 0, sc ? sc[3] : 0);
-gl.uniform1i(u("u_selActive"), g.selActive ? 1 : 0);
-const colorOn = g.colorMode !== 0 && g.cBuf;
-const sizeOn = g.sizeMode === 1 && g.sBuf;
-const selOn = g.selActive && g.selBuf;
-const rgbaOn = g.colorMode === 3 && g.rgbaBuf;
-const styleOn = !!g.styleBuf;
-const strokeOn = !!g.strokeBuf;
-if (g.lut) {
-gl.activeTexture(gl.TEXTURE0);
-gl.bindTexture(gl.TEXTURE_2D, g.lut);
-gl.uniform1i(u("u_lut"), 0);
-}
-const blendTarget = g.lodBlend ?? 0;
-let blend = g.lodBlendShown ?? blendTarget;
-if (Math.abs(blend - blendTarget) > 0.005 && !this._prefersReducedMotion()) {
-const now = this._now();
-const dt = g._blendTick ? Math.min(100, now - g._blendTick) : 16;
-g._blendTick = now;
-blend += (blendTarget - blend) * (1 - Math.exp(-dt / 90));
-g.lodBlendShown = blend;
-this.draw();
-} else {
-g.lodBlendShown = blend = blendTarget;
-g._blendTick = 0;
-}
-gl.uniform1f(u("u_dblend"), blend);
-const blendOn = blend > 0.001 && g.dBuf && g.dlut;
-if (blendOn) {
-gl.activeTexture(gl.TEXTURE1);
-gl.bindTexture(gl.TEXTURE_2D, g.dlut);
-}
-gl.uniform1i(u("u_dlut"), 1);
-this._bindVao(
-g,
-"points",
-[
-g.xBuf._fcId, g.yBuf._fcId,
-colorOn ? g.cBuf._fcId : 0,
-sizeOn ? g.sBuf._fcId : 0,
-selOn ? g.selBuf._fcId : 0,
-blendOn ? g.dBuf._fcId : 0,
-transitionOn ? g._transitionPrevXBuf._fcId : 0,
-transitionOn ? g._transitionPrevYBuf._fcId : 0,
-rgbaOn ? g.rgbaBuf._fcId : 0,
-styleOn ? g.styleBuf._fcId : 0,
-strokeOn ? g.strokeBuf._fcId : 0,
-],
-() => {
-this._vaoAttr(ATTR_SLOTS.ax, g.xBuf, 0, 0);
-this._vaoAttr(ATTR_SLOTS.ay, g.yBuf, 0, 0);
-if (colorOn) this._vaoAttr(ATTR_SLOTS.a_cval, g.cBuf, 0, 0);
-if (sizeOn) this._vaoAttr(ATTR_SLOTS.a_sval, g.sBuf, 0, 0);
-if (selOn) this._vaoAttr(ATTR_SLOTS.a_sel, g.selBuf, 0, 0);
-if (blendOn) this._vaoAttr(ATTR_SLOTS.a_dval, g.dBuf, 0, 0);
-if (transitionOn) {
-this._vaoAttr(ATTR_SLOTS.a_prevx, g._transitionPrevXBuf, 0, 0);
-this._vaoAttr(ATTR_SLOTS.a_prevy, g._transitionPrevYBuf, 0, 0);
-}
-if (rgbaOn) this._vaoAttr(ATTR_SLOTS.a_rgba, g.rgbaBuf, 0, 0, 4, true);
-if (styleOn) this._vaoAttr(ATTR_SLOTS.a_style, g.styleBuf, 0, 0, 4);
-if (strokeOn) this._vaoAttr(ATTR_SLOTS.a_stroke, g.strokeBuf, 0, 0, 4, true);
-}
-);
-if (!colorOn) gl.vertexAttrib1f(ATTR_SLOTS.a_cval, 0);
-if (!sizeOn) gl.vertexAttrib1f(ATTR_SLOTS.a_sval, 0.5);
-if (!selOn) gl.vertexAttrib1f(ATTR_SLOTS.a_sel, 1.0);
-if (!blendOn) gl.vertexAttrib1f(ATTR_SLOTS.a_dval, 0);
-if (!rgbaOn) gl.vertexAttrib4f(ATTR_SLOTS.a_rgba, r, gg, b, a);
-if (!styleOn) gl.vertexAttrib4f(ATTR_SLOTS.a_style, 1, -1, -1, -1);
-if (!strokeOn) gl.vertexAttrib4f(ATTR_SLOTS.a_stroke, r, gg, b, a);
-gl.drawArrays(gl.POINTS, 0, g.n);
-}
-_drawSimplePoints(g, xm, ym, opacityScale = 1) {
-const gl = this.gl;
-const prog = this.pointSimpleProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_xmap"), xm[0], xm[1]);
-gl.uniform2f(u("u_ymap"), ym[0], ym[1]);
-this._setAxisUniforms(prog, "u_x", g.xMeta, g.xAxis);
-this._setAxisUniforms(prog, "u_y", g.yMeta, g.yAxis);
-gl.uniform1f(u("u_dpr"), this.dpr);
-const transitionOn = !!(g._transitionPrevXBuf && g._transitionPrevYBuf);
-gl.uniform1i(u("u_transitionActive"), transitionOn ? 1 : 0);
-gl.uniform1f(u("u_transitionProgress"), g._transitionPositionProgress ?? 1);
-gl.uniform1f(u("u_size"), g.size * (g._transitionScale ?? 1));
-const [r, gg, b, a] = g.color;
-gl.uniform4f(
-u("u_color"), r, gg, b, a * this._fillOpacity(g.trace.style, 0.8) * opacityScale
-);
-this._bindVao(
-g,
-"points-simple",
-[g.xBuf._fcId, g.yBuf._fcId,
-transitionOn ? g._transitionPrevXBuf._fcId : 0,
-transitionOn ? g._transitionPrevYBuf._fcId : 0],
-() => {
-this._vaoAttr(ATTR_SLOTS.ax, g.xBuf, 0, 0);
-this._vaoAttr(ATTR_SLOTS.ay, g.yBuf, 0, 0);
-if (transitionOn) {
-this._vaoAttr(ATTR_SLOTS.a_prevx, g._transitionPrevXBuf, 0, 0);
-this._vaoAttr(ATTR_SLOTS.a_prevy, g._transitionPrevYBuf, 0, 0);
-}
-}
-);
-gl.drawArrays(gl.POINTS, 0, g.n);
-}
-_drawHoverState() {
-const hit = this._hoverTarget;
-if (!hit || !hit.g) return;
-const g = hit.g;
-if (g.trace.kind !== "scatter" || g.tier === "density") return;
-if (!Number.isInteger(hit.index) || hit.index < 0 || hit.index >= g.n) return;
-const [x0, x1] = this._axisRange(g.xAxis);
-const [y0, y1] = this._axisRange(g.yAxis);
-this._drawHoverPoint(
-g,
-hit.index,
-this._map(g.xMeta, x0, x1, g.xAxis),
-this._map(g.yMeta, y0, y1, g.yAxis)
-);
-}
-_drawHoverPoint(g, index, xm, ym) {
-const gl = this.gl;
-const prog = this.pointProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_xmap"), xm[0], xm[1]);
-gl.uniform2f(u("u_ymap"), ym[0], ym[1]);
-this._setAxisUniforms(prog, "u_x", g.xMeta, g.xAxis);
-this._setAxisUniforms(prog, "u_y", g.yMeta, g.yAxis);
-const defaultSize = Math.max((g.size || 4) * 1.75, (g.size || 4) + 5);
-const size = Math.max(0, this._markStateNumber("hover", "size", defaultSize));
-const opacity = Math.max(0, Math.min(1, this._markStateNumber("hover", "opacity", 0.95)));
-const color = parseColor(
-this.root,
-this._markStatePaint("hover", "color", "rgba(15,23,42,.92)"),
-[0.06, 0.09, 0.16, 0.92]
-);
-gl.uniform1f(u("u_dpr"), this.dpr);
-gl.uniform1f(u("u_size"), size);
-gl.uniform1i(u("u_sizeMode"), 0);
-gl.uniform2f(u("u_sizeRange"), size, size);
-gl.uniform1i(u("u_colorMode"), 0);
-gl.uniform1f(u("u_opacity"), opacity);
-gl.uniform1f(u("u_selectedOpacity"), 1);
-gl.uniform1f(u("u_unselectedOpacity"), 1);
-gl.uniform4f(u("u_color"), color[0], color[1], color[2], 1);
-gl.uniform1i(u("u_selActive"), 0);
-gl.uniform1f(u("u_dblend"), 0);
-this._bindVao(g, "hover", [g.xBuf._fcId, g.yBuf._fcId], () => {
-this._vaoAttr(ATTR_SLOTS.ax, g.xBuf, 0, 0);
-this._vaoAttr(ATTR_SLOTS.ay, g.yBuf, 0, 0);
-});
-gl.vertexAttrib1f(ATTR_SLOTS.a_cval, 0);
-gl.vertexAttrib1f(ATTR_SLOTS.a_sval, 0.5);
-gl.vertexAttrib1f(ATTR_SLOTS.a_sel, 1);
-gl.vertexAttrib1f(ATTR_SLOTS.a_dval, 0);
-gl.drawArrays(gl.POINTS, index, 1);
-}
-_drawDensity(g, density, opacityScale = 1) {
-const gl = this.gl;
-const d = density || g.density;
-if (!d || !d.tex || !gl.isTexture(d.tex)) return;
-opacityScale *= g._transitionOpacity ?? 1;
-const prog = this.densityProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-const { x0, x1, y0, y1 } = this.view;
-const [vx0, vx1] = this._axisRange(g.xAxis);
-const [vy0, vy1] = this._axisRange(g.yAxis);
-gl.uniform4f(u("u_view"), vx0 ?? x0, vx1 ?? x1, vy0 ?? y0, vy1 ?? y1);
-gl.uniform1i(u("u_xmode"), this._axisMode(g.xAxis));
-gl.uniform1i(u("u_ymode"), this._axisMode(g.yAxis));
-gl.uniform4f(u("u_gridRange"), d.xRange[0], d.xRange[1], d.yRange[0], d.yRange[1]);
-gl.uniform1f(u("u_opacity"), this._fillOpacity(g.trace.style) * opacityScale);
-const constant = d.color;
-gl.uniform1i(u("u_constantColor"), constant ? 1 : 0);
-gl.uniform4f(u("u_color"), ...(constant || [1, 1, 1, 1]));
-gl.activeTexture(gl.TEXTURE0);
-gl.bindTexture(gl.TEXTURE_2D, d.tex);
-gl.uniform1i(u("u_grid"), 0);
-gl.activeTexture(gl.TEXTURE1);
-gl.bindTexture(gl.TEXTURE_2D, d.lut);
-gl.uniform1i(u("u_lut"), 1);
-gl.bindVertexArray(this.quadVao);
-gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
-}
-_drawHeatmap(g) {
-const h = g.heatmap;
-if (!h) return;
-const gl = this.gl;
-const prog = this.heatmapProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-const { x0, x1, y0, y1 } = this.view;
-const [vx0, vx1] = this._axisRange(g.xAxis);
-const [vy0, vy1] = this._axisRange(g.yAxis);
-gl.uniform4f(u("u_view"), vx0 ?? x0, vx1 ?? x1, vy0 ?? y0, vy1 ?? y1);
-gl.uniform1i(u("u_xmode"), this._axisMode(g.xAxis));
-gl.uniform1i(u("u_ymode"), this._axisMode(g.yAxis));
-const xrev = (vx0 ?? x0) > (vx1 ?? x1);
-const yrev = (vy0 ?? y0) > (vy1 ?? y1);
-gl.uniform4f(
-u("u_gridRange"),
-h.xRange[xrev ? 1 : 0], h.xRange[xrev ? 0 : 1],
-h.yRange[yrev ? 1 : 0], h.yRange[yrev ? 0 : 1],
-);
-gl.uniform1f(u("u_opacity"), this._fillOpacity(g.trace.style) * (g._transitionOpacity ?? 1));
-gl.uniform1i(u("u_truecolor"), h.truecolor ? 1 : 0);
-gl.activeTexture(gl.TEXTURE0);
-gl.bindTexture(gl.TEXTURE_2D, h.tex);
-gl.uniform1i(u("u_grid"), 0);
-if (!h.truecolor) {
-gl.activeTexture(gl.TEXTURE1);
-gl.bindTexture(gl.TEXTURE_2D, h.lut);
-gl.uniform1i(u("u_lut"), 1);
-}
-gl.bindVertexArray(this.quadVao);
-gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
-}
-_drawLine(g, xm, ym, color = null, width = null, opacity = null) {
-if (g.n < 2) return;
-const gl = this.gl;
-gl.useProgram(this.lineProg);
-const u = (n) => uniformOf(gl, this.lineProg, n);
-gl.uniform2f(u("u_xmap"), xm[0], xm[1]);
-gl.uniform2f(u("u_ymap"), ym[0], ym[1]);
-this._setAxisUniforms(this.lineProg, "u_x", g.xMeta, g.xAxis);
-this._setAxisUniforms(this.lineProg, "u_y", g.yMeta, g.yAxis);
-gl.uniform2f(u("u_res"), this.canvas.width, this.canvas.height);
-const transitionOn = !!(g._transitionPrevXBuf && g._transitionPrevYBuf);
-gl.uniform1i(u("u_transitionActive"), transitionOn ? 1 : 0);
-gl.uniform1f(u("u_transitionProgress"), g._transitionPositionProgress ?? 1);
-const reveal = Math.max(0, Math.min(1, g._transitionReveal ?? 1));
-gl.uniform1f(u("u_revealProgress"), reveal);
-gl.uniform1f(u("u_revealSegments"), g.n - 1);
-gl.uniform1f(u("u_width"), (width ?? g.trace.style.width ?? 1.5) * this.dpr);
-const [r, gg, b, a] = color || g.color;
-const strokeOpacity = this._strokeOpacity(g.trace.style) * (opacity ?? 1) * (g._transitionOpacity ?? 1);
-gl.uniform4f(u("u_color"), r, gg, b, a * strokeOpacity);
-const dashed = this._lineDash(g);
-this._bindVao(
-g,
-"line",
-[g.xBuf._fcId, g.yBuf._fcId, dashed ? g._lenBuf._fcId : 0,
-transitionOn ? g._transitionPrevXBuf._fcId : 0,
-transitionOn ? g._transitionPrevYBuf._fcId : 0],
-() => {
-this._vaoAttr(ATTR_SLOTS.ax0, g.xBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ax1, g.xBuf, 4, 1);
-this._vaoAttr(ATTR_SLOTS.ay0, g.yBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ay1, g.yBuf, 4, 1);
-if (dashed) {
-this._vaoAttr(ATTR_SLOTS.a_len0, g._lenBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.a_len1, g._lenBuf, 4, 1);
-}
-if (transitionOn) {
-this._vaoAttr(ATTR_SLOTS.a_prevx, g._transitionPrevXBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.a_prevy, g._transitionPrevYBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.a_prevx1, g._transitionPrevXBuf, 4, 1);
-this._vaoAttr(ATTR_SLOTS.a_prevy1, g._transitionPrevYBuf, 4, 1);
-}
-}
-);
-const segments = Math.max(0, Math.min(g.n - 1, Math.ceil((g.n - 1) * reveal)));
-gl.drawArraysInstanced(gl.TRIANGLE_STRIP, 0, 4, segments);
-}
-_drawSegments(g, xm, ym) {
-if (g.n < 1) return;
-const gl = this.gl;
-const prog = this.segmentProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_xmap"), xm[0], xm[1]);
-gl.uniform2f(u("u_ymap"), ym[0], ym[1]);
-this._setAxisUniforms(prog, "u_x0", g.x0Meta, g.xAxis);
-this._setAxisUniforms(prog, "u_x1", g.x1Meta, g.xAxis);
-this._setAxisUniforms(prog, "u_y0", g.y0Meta, g.yAxis);
-this._setAxisUniforms(prog, "u_y1", g.y1Meta, g.yAxis);
-gl.uniform2f(u("u_res"), this.canvas.width, this.canvas.height);
-gl.uniform1f(u("u_width"), (g.trace.style.width ?? 1.5) * this.dpr);
-gl.uniform1f(u("u_animationProgress"), g._transitionScale ?? 1);
-const [r, gg, b, a] = g.color;
-gl.uniform4f(u("u_color"), r, gg, b, a);
-gl.uniform1f(u("u_opacity"), this._strokeOpacity(g.trace.style) * (g._transitionOpacity ?? 1));
-gl.uniform1i(u("u_colorMode"), g.colorMode || 0);
-const dashed = this._segmentDash(g, prog);
-if (g.colorMode && g.lut) {
-gl.activeTexture(gl.TEXTURE0);
-gl.bindTexture(gl.TEXTURE_2D, g.lut);
-gl.uniform1i(u("u_lut"), 0);
-}
-this._bindVao(
-g,
-"segment",
-[g.x0Buf._fcId, g.x1Buf._fcId, g.y0Buf._fcId, g.y1Buf._fcId,
-g.colorMode && g.cBuf ? g.cBuf._fcId : 0,
-g.rgbaBuf ? g.rgbaBuf._fcId : 0,
-g.styleBuf ? g.styleBuf._fcId : 0,
-dashed ? g._segmentDashOffsetBuf._fcId : 0,
-dashed ? g._segmentDashDirBuf._fcId : 0],
-() => {
-this._vaoAttr(ATTR_SLOTS.ax0, g.x0Buf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ax1, g.x1Buf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ay0, g.y0Buf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ay1, g.y1Buf, 0, 1);
-if (g.colorMode && g.cBuf) this._vaoAttr(ATTR_SLOTS.a_cval, g.cBuf, 0, 1);
-if (g.rgbaBuf) this._vaoAttr(ATTR_SLOTS.a_rgba, g.rgbaBuf, 0, 1, 4, true);
-if (g.styleBuf) this._vaoAttr(ATTR_SLOTS.a_style, g.styleBuf, 0, 1, 4);
-if (dashed) {
-this._vaoAttr(ATTR_SLOTS.a_dash0, g._segmentDashOffsetBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.a_dashDir, g._segmentDashDirBuf, 0, 1);
-}
-}
-);
-if (!g.cBuf) gl.vertexAttrib1f(ATTR_SLOTS.a_cval, 0);
-if (!g.rgbaBuf) gl.vertexAttrib4f(ATTR_SLOTS.a_rgba, r, gg, b, a);
-if (!g.styleBuf) gl.vertexAttrib4f(ATTR_SLOTS.a_style, 1, -1, -1, -1);
-const count = Math.max(0, Math.min(g.n, Math.ceil(g.n * (g._transitionReveal ?? 1))));
-gl.drawArraysInstanced(gl.TRIANGLE_STRIP, 0, 4, count);
-}
-_segmentDash(g, prog) {
-const gl = this.gl;
-const u = (n) => uniformOf(gl, prog, n);
-const dash = g.trace.style && g.trace.style.dash;
-const cpu = g._segmentCpu;
-if (!dash || !dash.length || !cpu) {
-gl.uniform1i(u("u_dashCount"), 0);
-return false;
-}
-const n = g.n;
-const offsets = g._segmentDashOffsets?.length === n
-? g._segmentDashOffsets : (g._segmentDashOffsets = new Float32Array(n));
-const directions = g._segmentDashDirections?.length === n
-? g._segmentDashDirections : (g._segmentDashDirections = new Float32Array(n));
-const k0 = new Array(n), k1 = new Array(n), lengths = new Float32Array(n);
-const adjacency = new Map();
-const add = (key, index) => {
-const edges = adjacency.get(key);
-if (edges) edges.push(index); else adjacency.set(key, [index]);
-};
-const key = (x, y) => `${Math.round(x * 1000)},${Math.round(y * 1000)}`;
-const dpr = this.dpr;
-for (let i = 0; i < n; i++) {
-const x0 = this._dataPx(g.xAxis, this._decodeValue(cpu.x0, g.x0Meta, i));
-const x1 = this._dataPx(g.xAxis, this._decodeValue(cpu.x1, g.x1Meta, i));
-const y0 = this._dataPx(g.yAxis, this._decodeValue(cpu.y0, g.y0Meta, i));
-const y1 = this._dataPx(g.yAxis, this._decodeValue(cpu.y1, g.y1Meta, i));
-k0[i] = key(x0, y0); k1[i] = key(x1, y1);
-lengths[i] = Math.hypot(x1 - x0, y1 - y0) * dpr;
-add(k0[i], i); add(k1[i], i);
-}
-const visited = new Uint8Array(n);
-const walk = (start) => {
-let current = start, accumulated = 0;
-while (true) {
-const edge = (adjacency.get(current) || []).find((index) => !visited[index]);
-if (edge === undefined) break;
-visited[edge] = 1;
-if (k0[edge] === current) {
-offsets[edge] = accumulated;
-directions[edge] = 1;
-current = k1[edge];
-} else {
-offsets[edge] = accumulated + lengths[edge];
-directions[edge] = -1;
-current = k0[edge];
-}
-accumulated += lengths[edge];
-}
-};
-for (const [node, edges] of adjacency) if (edges.length === 1) walk(node);
-for (let i = 0; i < n; i++) if (!visited[i]) walk(k0[i]);
-const upload = (buffer, values) => {
-if (!buffer) return this._upload(values);
-gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
-gl.bufferData(gl.ARRAY_BUFFER, values, gl.DYNAMIC_DRAW);
-return buffer;
-};
-g._segmentDashOffsetBuf = upload(g._segmentDashOffsetBuf, offsets);
-g._segmentDashDirBuf = upload(g._segmentDashDirBuf, directions);
-const pattern = new Float32Array(8);
-const count = Math.min(dash.length, 8);
-let period = 0;
-for (let i = 0; i < count; i++) {
-pattern[i] = Number(dash[i]) * dpr;
-period += pattern[i];
-}
-gl.uniform1i(u("u_dashCount"), count);
-gl.uniform1fv(u("u_dashArr"), pattern);
-gl.uniform1f(u("u_dashPeriod"), Math.max(period, 1e-3));
-return true;
-}
-_drawMesh(g, xm, ym) {
-if (g.n < 1) return;
-const gl = this.gl;
-const prog = this.meshProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_xmap"), xm[0], xm[1]);
-gl.uniform2f(u("u_ymap"), ym[0], ym[1]);
-for (const name of ["x0", "x1", "x2"]) this._setAxisUniforms(prog, "u_" + name, g[name + "Meta"], g.xAxis);
-for (const name of ["y0", "y1", "y2"]) this._setAxisUniforms(prog, "u_" + name, g[name + "Meta"], g.yAxis);
-gl.uniform1i(u("u_colorMode"), g.colorMode || 0);
-gl.uniform1f(u("u_opacity"), this._fillOpacity(g.trace.style));
-gl.uniform4f(u("u_color"), g.color[0], g.color[1], g.color[2], g.color[3]);
-const stroke = g.meshStroke || [0, 0, 0, 0];
-gl.uniform4f(u("u_stroke"), stroke[0], stroke[1], stroke[2], stroke[3]);
-gl.uniform1f(u("u_strokeWidth"), g.meshStrokeWidth || 0);
-gl.uniform1i(u("u_strokeMode"), g.strokeBuf ? 1 : 0);
-gl.uniform1f(u("u_strokeOpacity"), this._strokeOpacity(g.trace.style));
-if (g.colorMode && g.lut) {
-gl.activeTexture(gl.TEXTURE0);
-gl.bindTexture(gl.TEXTURE_2D, g.lut);
-gl.uniform1i(u("u_lut"), 0);
-}
-const parts = ["x0", "x1", "x2", "y0", "y1", "y2"].map((name) => g[name + "Buf"]._fcId);
-parts.push(g.cBuf ? g.cBuf._fcId : 0, g.rgbaBuf ? g.rgbaBuf._fcId : 0,
-g.styleBuf ? g.styleBuf._fcId : 0, g.strokeBuf ? g.strokeBuf._fcId : 0);
-this._bindVao(g, "mesh", parts, () => {
-for (const name of ["x0", "x1", "x2", "y0", "y1", "y2"]) {
-this._vaoAttr(ATTR_SLOTS["a" + name], g[name + "Buf"], 0, 1);
-}
-if (g.cBuf) this._vaoAttr(ATTR_SLOTS.a_cval, g.cBuf, 0, 1);
-if (g.rgbaBuf) this._vaoAttr(ATTR_SLOTS.a_rgba, g.rgbaBuf, 0, 1, 4, true);
-if (g.styleBuf) this._vaoAttr(ATTR_SLOTS.a_style, g.styleBuf, 0, 1, 4);
-if (g.strokeBuf) this._vaoAttr(ATTR_SLOTS.a_stroke, g.strokeBuf, 0, 1, 4, true);
-});
-if (!g.cBuf) gl.vertexAttrib1f(ATTR_SLOTS.a_cval, 0);
-if (!g.rgbaBuf) gl.vertexAttrib4f(ATTR_SLOTS.a_rgba, ...g.color);
-if (!g.styleBuf) gl.vertexAttrib4f(ATTR_SLOTS.a_style, 1, -1, -1, -1);
-if (!g.strokeBuf) gl.vertexAttrib4f(ATTR_SLOTS.a_stroke, ...stroke);
-gl.drawArraysInstanced(gl.TRIANGLES, 0, 3, g.n);
-}
-_lineDash(g) {
-const gl = this.gl;
-const u = (n) => uniformOf(gl, this.lineProg, n);
-const dash = g.trace.style && g.trace.style.dash;
-if (!dash || !dash.length || !g._dashX) {
-gl.uniform1i(u("u_dashCount"), 0);
-return false;
-}
-const n = g.n;
-if (!g._lenArr || g._lenArr.length !== n) g._lenArr = new Float32Array(n);
-const lens = g._lenArr;
-const dpr = this.dpr;
-let px = this._dataPx(g.xAxis, this._decodeValue(g._dashX, g.xMeta, 0));
-let py = this._dataPx(g.yAxis, this._decodeValue(g._dashY, g.yMeta, 0));
-let acc = 0;
-lens[0] = 0;
-for (let i = 1; i < n; i++) {
-const nx = this._dataPx(g.xAxis, this._decodeValue(g._dashX, g.xMeta, i));
-const ny = this._dataPx(g.yAxis, this._decodeValue(g._dashY, g.yMeta, i));
-if (Number.isFinite(nx) && Number.isFinite(ny) && Number.isFinite(px) && Number.isFinite(py)) {
-acc += Math.hypot(nx - px, ny - py) * dpr;
-}
-lens[i] = acc;
-px = nx;
-py = ny;
-}
-if (!g._lenBuf) g._lenBuf = this._upload(lens);
-else {
-gl.bindBuffer(gl.ARRAY_BUFFER, g._lenBuf);
-gl.bufferData(gl.ARRAY_BUFFER, lens, gl.DYNAMIC_DRAW);
-}
-const arr = new Float32Array(8);
-let period = 0;
-const count = Math.min(dash.length, 8);
-for (let i = 0; i < count; i++) {
-arr[i] = dash[i] * dpr;
-period += arr[i];
-}
-gl.uniform1i(u("u_dashCount"), count);
-gl.uniform1fv(u("u_dashArr"), arr);
-gl.uniform1f(u("u_dashPeriod"), Math.max(period, 1e-3));
-return true;
-}
-_drawArea(g, xm, ym, bm) {
-if (g.n < 2) return;
-const gl = this.gl;
-const prog = this.areaProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_xmap"), xm[0], xm[1]);
-gl.uniform2f(u("u_ymap"), ym[0], ym[1]);
-gl.uniform2f(u("u_bmap"), bm[0], bm[1]);
-this._setAxisUniforms(prog, "u_x", g.xMeta, g.xAxis);
-this._setAxisUniforms(prog, "u_y", g.yMeta, g.yAxis);
-this._setAxisUniforms(prog, "u_b", g.baseMeta, g.yAxis);
-const reveal = Math.max(0, Math.min(1, g._transitionReveal ?? 1));
-gl.uniform1f(u("u_revealProgress"), reveal);
-gl.uniform1f(u("u_revealSegments"), g.n - 1);
-const [r, gg, b, a] = g.color;
-gl.uniform4f(u("u_color"), r, gg, b, a * this._fillOpacity(g.trace.style, 0.35) * (g._transitionOpacity ?? 1));
-gl.uniform2f(u("u_res"), this.canvas.width, this.canvas.height);
-this._setGradientUniforms(prog, g.grad);
-this._bindVao(g, "area", [g.xBuf._fcId, g.yBuf._fcId, g.baseBuf._fcId], () => {
-this._vaoAttr(ATTR_SLOTS.ax0, g.xBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ax1, g.xBuf, 4, 1);
-this._vaoAttr(ATTR_SLOTS.ay0, g.yBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ay1, g.yBuf, 4, 1);
-this._vaoAttr(ATTR_SLOTS.ab0, g.baseBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ab1, g.baseBuf, 4, 1);
-});
-const count = Math.max(0, Math.min(g.n - 1, Math.ceil((g.n - 1) * reveal)));
-gl.drawArraysInstanced(gl.TRIANGLE_STRIP, 0, 4, count);
-}
-_drawRects(g, x0, x1, y0, y1, edgePad = [0, 0, 0, 0]) {
-if (!g.n) return;
-const gl = this.gl;
-const prog = this.rectProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_x0map"), x0[0], x0[1]);
-gl.uniform2f(u("u_x1map"), x1[0], x1[1]);
-gl.uniform2f(u("u_y0map"), y0[0], y0[1]);
-gl.uniform2f(u("u_y1map"), y1[0], y1[1]);
-this._setAxisUniforms(prog, "u_x0", g.x0Meta, g.xAxis);
-this._setAxisUniforms(prog, "u_x1", g.x1Meta, g.xAxis);
-this._setAxisUniforms(prog, "u_y0", g.y0Meta, g.yAxis);
-this._setAxisUniforms(prog, "u_y1", g.y1Meta, g.yAxis);
-gl.uniform1i(u("u_xmode"), this._axisMode(g.xAxis));
-gl.uniform1i(u("u_ymode"), this._axisMode(g.yAxis));
-gl.uniform4f(u("u_edgePad"), edgePad[0], edgePad[1], edgePad[2], edgePad[3]);
-const [r, gg, b, a] = g.color;
-gl.uniform4f(u("u_color"), r, gg, b, a);
-gl.uniform1f(u("u_opacity"), this._fillOpacity(g.trace.style) * (g._transitionOpacity ?? 1));
-gl.uniform1i(u("u_colorMode"), g.colorMode || 0);
-this._setRectStyleUniforms(prog, g);
-const colorOn = !!g.cBuf;
-const rgbaOn = !!g.rgbaBuf;
-const styleOn = !!g.styleBuf;
-const strokeOn = !!g.strokeBuf;
-const radiusOn = !!g.radiusBuf;
-if (colorOn) {
-gl.activeTexture(gl.TEXTURE0);
-gl.bindTexture(gl.TEXTURE_2D, g.lut);
-gl.uniform1i(u("u_lut"), 0);
-}
-this._bindVao(
-g,
-"rects",
-[g.x0Buf._fcId, g.x1Buf._fcId, g.y0Buf._fcId, g.y1Buf._fcId,
-colorOn ? g.cBuf._fcId : 0, rgbaOn ? g.rgbaBuf._fcId : 0,
-styleOn ? g.styleBuf._fcId : 0, strokeOn ? g.strokeBuf._fcId : 0,
-radiusOn ? g.radiusBuf._fcId : 0],
-() => {
-this._vaoAttr(ATTR_SLOTS.ax0, g.x0Buf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ax1, g.x1Buf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ay0, g.y0Buf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ay1, g.y1Buf, 0, 1);
-if (colorOn) this._vaoAttr(ATTR_SLOTS.a_cval, g.cBuf, 0, 1);
-if (rgbaOn) this._vaoAttr(ATTR_SLOTS.a_rgba, g.rgbaBuf, 0, 1, 4, true);
-if (styleOn) this._vaoAttr(ATTR_SLOTS.a_style, g.styleBuf, 0, 1, 4);
-if (strokeOn) this._vaoAttr(ATTR_SLOTS.a_stroke, g.strokeBuf, 0, 1, 4, true);
-if (radiusOn) this._vaoAttr(ATTR_SLOTS.a_radius, g.radiusBuf, 0, 1, 2);
-}
-);
-if (!colorOn) gl.vertexAttrib1f(ATTR_SLOTS.a_cval, 0);
-if (!rgbaOn) gl.vertexAttrib4f(ATTR_SLOTS.a_rgba, r, gg, b, a);
-if (!styleOn) gl.vertexAttrib4f(ATTR_SLOTS.a_style, 1, -1, -1, -1);
-if (!strokeOn) gl.vertexAttrib4f(ATTR_SLOTS.a_stroke, ...(g.strokeColor || g.color));
-if (!radiusOn) gl.vertexAttrib2f(ATTR_SLOTS.a_radius, -1, -1);
-gl.drawArraysInstanced(gl.TRIANGLE_STRIP, 0, 4, g.n);
-}
-_drawBars(g, pmap, v1map, v0map, v0Const, v0EdgePad = 0) {
-if (!g.n) return;
-const gl = this.gl;
-const prog = this.barProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_pmap"), pmap[0], pmap[1]);
-gl.uniform2f(u("u_v1map"), v1map[0], v1map[1]);
-gl.uniform2f(u("u_v0map"), v0map ? v0map[0] : 1, v0map ? v0map[1] : 0);
-const pAxis = g.orientation === 1 ? g.yAxis : g.xAxis;
-const vAxis = g.orientation === 1 ? g.xAxis : g.yAxis;
-this._setAxisUniforms(prog, "u_p", g.posMeta, pAxis);
-this._setAxisUniforms(prog, "u_v1", g.value1Meta, vAxis);
-this._setAxisUniforms(prog, "u_v0", g.value0Meta, vAxis);
-gl.uniform1i(u("u_pmode"), this._axisMode(pAxis));
-gl.uniform1i(u("u_vmode"), this._axisMode(vAxis));
-gl.uniform1f(u("u_width"), g.width);
-gl.uniform1i(u("u_orientation"), g.orientation);
-gl.uniform1i(u("u_v0Mode"), g.value0Mode);
-gl.uniform1f(u("u_v0Const"), v0Const ?? 0);
-gl.uniform1f(u("u_v0EdgePad"), v0EdgePad);
-gl.uniform1f(u("u_animationProgress"), g._transitionGrow ?? 1);
-const transitionOn = !!(
-g._transitionPrevPosBuf &&
-g._transitionPrevValue1Buf &&
-g._transitionPrevValue0Buf
-);
-gl.uniform1i(u("u_transitionActive"), transitionOn ? 1 : 0);
-gl.uniform1f(u("u_transitionProgress"), g._transitionPositionProgress ?? 1);
-gl.uniform1f(u("u_prevWidth"), g._transitionPrevWidth ?? g.width);
-const [r, gg, b, a] = g.color;
-gl.uniform4f(u("u_color"), r, gg, b, a);
-gl.uniform1f(u("u_opacity"), this._fillOpacity(g.trace.style) * (g._transitionOpacity ?? 1));
-gl.uniform1i(u("u_colorMode"), g.colorMode || 0);
-this._setRectStyleUniforms(prog, g);
-const v0On = g.value0Mode === 1 && g.value0Buf;
-const colorOn = !!g.cBuf;
-const rgbaOn = !!g.rgbaBuf;
-const styleOn = !!g.styleBuf;
-const strokeOn = !!g.strokeBuf;
-const radiusOn = !!g.radiusBuf;
-if (colorOn) {
-gl.activeTexture(gl.TEXTURE0);
-gl.bindTexture(gl.TEXTURE_2D, g.lut);
-gl.uniform1i(u("u_lut"), 0);
-}
-this._bindVao(
-g,
-"bars",
-[
-g.posBuf._fcId, g.value1Buf._fcId,
-v0On ? g.value0Buf._fcId : 0,
-colorOn ? g.cBuf._fcId : 0,
-transitionOn ? g._transitionPrevPosBuf._fcId : 0,
-transitionOn ? g._transitionPrevValue1Buf._fcId : 0,
-transitionOn ? g._transitionPrevValue0Buf._fcId : 0,
-rgbaOn ? g.rgbaBuf._fcId : 0,
-styleOn ? g.styleBuf._fcId : 0,
-strokeOn ? g.strokeBuf._fcId : 0,
-radiusOn ? g.radiusBuf._fcId : 0,
-],
-() => {
-this._vaoAttr(ATTR_SLOTS.a_pos, g.posBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.a_v1, g.value1Buf, 0, 1);
-if (v0On) this._vaoAttr(ATTR_SLOTS.a_v0, g.value0Buf, 0, 1);
-if (colorOn) this._vaoAttr(ATTR_SLOTS.a_cval, g.cBuf, 0, 1);
-if (transitionOn) {
-this._vaoAttr(ATTR_SLOTS.a_prevx, g._transitionPrevPosBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.a_prevy, g._transitionPrevValue1Buf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.a_prevx1, g._transitionPrevValue0Buf, 0, 1);
-}
-if (rgbaOn) this._vaoAttr(ATTR_SLOTS.a_rgba, g.rgbaBuf, 0, 1, 4, true);
-if (styleOn) this._vaoAttr(ATTR_SLOTS.a_style, g.styleBuf, 0, 1, 4);
-if (strokeOn) this._vaoAttr(ATTR_SLOTS.a_stroke, g.strokeBuf, 0, 1, 4, true);
-if (radiusOn) this._vaoAttr(ATTR_SLOTS.a_radius, g.radiusBuf, 0, 1, 2);
-}
-);
-if (!v0On) gl.vertexAttrib1f(ATTR_SLOTS.a_v0, 0);
-if (!colorOn) gl.vertexAttrib1f(ATTR_SLOTS.a_cval, 0);
-if (!rgbaOn) gl.vertexAttrib4f(ATTR_SLOTS.a_rgba, r, gg, b, a);
-if (!styleOn) gl.vertexAttrib4f(ATTR_SLOTS.a_style, 1, -1, -1, -1);
-if (!strokeOn) gl.vertexAttrib4f(ATTR_SLOTS.a_stroke, ...(g.strokeColor || g.color));
-if (!radiusOn) gl.vertexAttrib2f(ATTR_SLOTS.a_radius, -1, -1);
-gl.drawArraysInstanced(gl.TRIANGLE_STRIP, 0, 4, g.n);
-}
-_dataPxX(value) {
-return this._dataPx("x", value);
-}
-_dataPxY(value) {
-return this._dataPx("y", value);
-}
-_styleNumber(style, key, fallback) {
-if (!style || typeof style !== "object") return fallback;
-const value = Number(style[key]);
-return Number.isFinite(value) ? value : fallback;
-}
-_axisStyleNumber(axis, key, fallback) {
-return this._styleNumber(axis && axis.style, key, fallback);
-}
-_axisStylePaint(axis, key, fallback) {
-const style = axis && typeof axis.style === "object" ? axis.style : null;
-return safeCssPaint(this.root, style && style[key], fallback);
-}
-_axisStyleValue(axis, key) {
-const style = axis && typeof axis.style === "object" ? axis.style : null;
-return style && Object.prototype.hasOwnProperty.call(style, key) ? style[key] : undefined;
-}
-_axisGridDash(axis) {
-const value = String(this._axisStyleValue(axis, "grid_dash") || "solid");
-if (value === "dashed") return [6, 4];
-if (value === "dotted") return [1, 3];
-if (value === "dashdot") return [6, 3, 1, 3];
-return [];
-}
-_axisTickLabelStrategy(axis) {
-const value = String((axis && axis.tick_label_strategy) || "auto").replace(/-/g, "_");
-return ["auto", "hide", "rotate", "stagger", "none", "off"].includes(value) ? value : "auto";
-}
-_axisTickLabelAnchor(axis) {
-const raw = axis && axis.tick_label_anchor !== undefined
-? axis.tick_label_anchor
-: this._axisStyleValue(axis, "tick_label_anchor");
-if (raw == null) return null;
-const value = String(raw).toLowerCase();
-if (value === "start" || value === "left") return "start";
-if (value === "end" || value === "right") return "end";
-if (value === "center" || value === "middle") return "center";
-return null;
-}
-_axisTickLabelAngle(axis) {
-const angle = Number(axis ? axis.tick_label_angle : undefined);
-return Number.isFinite(angle) ? angle : null;
-}
-_axisTickLabelMinGap(axis, dim) {
-const gap = Number(axis ? axis.tick_label_min_gap : undefined);
-return Number.isFinite(gap) && gap >= 0 ? gap : (dim === "x" ? 8 : 4);
-}
-_estimateTickLabel(text, fontSize) {
-const s = String(text || "");
-return { w: Math.max(fontSize * 0.7, s.length * fontSize * 0.62), h: fontSize * 1.2 };
-}
-_tickLabelExtent(label, dim, fontSize) {
-const size = this._estimateTickLabel(label.text, fontSize);
-const angle = Math.abs(Number(label.angle || 0)) * Math.PI / 180;
-return dim === "y"
-? Math.abs(Math.sin(angle)) * size.w + Math.abs(Math.cos(angle)) * size.h
-: Math.abs(Math.cos(angle)) * size.w + Math.abs(Math.sin(angle)) * size.h;
-}
-_tickLabelsCollide(labels, dim, fontSize, minGap, anchor = "center") {
-const rows = new Map();
-for (const label of labels) {
-const row = Number(label.row || 0);
-if (!rows.has(row)) rows.set(row, []);
-rows.get(row).push(label);
-}
-for (const rowLabels of rows.values()) {
-rowLabels.sort((a, b) => a.pos - b.pos);
-if (dim === "x" && anchor !== "center") {
-for (let i = 1; i < rowLabels.length; i++) {
-const prev = rowLabels[i - 1];
-const label = rowLabels[i];
-const spacing = label.pos - prev.pos;
-const angle = Math.abs(Number(label.angle || 0)) * Math.PI / 180;
-if (angle) {
-if (spacing * Math.sin(angle) < fontSize * 1.2 + minGap) return true;
-} else {
-const lead = anchor === "end" ? label : prev;
-if (spacing < this._estimateTickLabel(lead.text, fontSize).w + minGap) return true;
-}
-}
-continue;
-}
-let lastEnd = -Infinity;
-for (const label of rowLabels) {
-const extent = this._tickLabelExtent(label, dim, fontSize);
-const start = label.pos - extent / 2;
-const end = label.pos + extent / 2;
-if (start < lastEnd + minGap) return true;
-lastEnd = end;
-}
-}
-return false;
-}
-_downsampleTickLabels(labels, dim, fontSize, minGap, anchor = "center") {
-if (labels.length <= 1) return labels;
-for (let stride = 2; stride <= labels.length; stride++) {
-const out = labels.filter((_, i) => i % stride === 0);
-if (!this._tickLabelsCollide(out, dim, fontSize, minGap, anchor)) return out;
-}
-return labels.slice(0, 1);
-}
-_layoutTickLabels(axis, dim, labels) {
-const strategyValue = this._axisTickLabelStrategy(axis);
-if (strategyValue === "none" || strategyValue === "off") return [];
-if (labels.length <= 1) {
-const angle = this._axisTickLabelAngle(axis);
-return labels.map((label) => ({ ...label, angle: angle === null ? 0 : angle, row: 0 }));
-}
-const fontSize = Math.max(
-8,
-this._axisStyleNumber(axis, "tick_label_size", this._axisStyleNumber(axis, "tick_size", 11)),
-);
-const minGap = this._axisTickLabelMinGap(axis, dim);
-const anchor = dim === "x" ? (this._axisTickLabelAnchor(axis) ?? "center") : "center";
-const explicitAngle = this._axisTickLabelAngle(axis);
-const baseAngle = explicitAngle === null ? 0 : explicitAngle;
-const withBase = labels.map((label) => ({ ...label, angle: baseAngle, row: 0 }));
-let strategy = strategyValue;
-if (strategy === "auto") {
-if (!this._tickLabelsCollide(withBase, dim, fontSize, minGap, anchor)) return withBase;
-if (dim === "x" && axis.kind === "category" && labels.length <= 16) strategy = "rotate";
-else if (dim === "x" && labels.length <= 24) strategy = "stagger";
-else strategy = "hide";
-}
-let out = withBase;
-if (strategy === "rotate" && dim === "x") {
-const angle = explicitAngle === null ? (axis.side === "top" ? 35 : -35) : explicitAngle;
-out = labels.map((label) => ({ ...label, angle, row: 0 }));
-} else if (strategy === "stagger" && dim === "x") {
-out = labels.map((label, i) => ({ ...label, angle: baseAngle, row: i % 2 }));
-}
-if (this._tickLabelsCollide(out, dim, fontSize, minGap, anchor)) {
-out = this._downsampleTickLabels(out, dim, fontSize, minGap, anchor);
-}
-return out;
-}
-_xTickLabelTransform(axis, angle) {
-const value = Number(angle || 0);
-const side = axis && axis.side === "top" ? "top" : "bottom";
-const anchor = this._axisTickLabelAnchor(axis);
-if (anchor) {
-const shift = anchor === "end" ? "-100%" : anchor === "start" ? "0%" : "-50%";
-const originX = anchor === "end" ? "right" : anchor === "start" ? "left" : "center";
-return {
-transform: `translateX(${shift}) rotate(${value}deg)`,
-origin: `${originX} ${side === "top" ? "bottom" : "top"}`,
-};
-}
-if (value === 0) {
-return {
-transform: "translateX(-50%)",
-origin: side === "top" ? "bottom center" : "top center",
-};
-}
-const anchorAtEnd = (side === "bottom" && value < 0) || (side === "top" && value > 0);
-const verticalOrigin = side === "top" ? "bottom" : "top";
-return {
-transform: `${anchorAtEnd ? "translateX(-100%) " : ""}rotate(${value}deg)`,
-origin: `${verticalOrigin} ${anchorAtEnd ? "right" : "left"}`,
-};
-}
-_axisLabelCss(axis, dim, fallbackCss) {
-const rawPosition = axis && axis.label_position;
-const hasPosition = rawPosition !== undefined && rawPosition !== null;
-const hasOffset = axis && Number.isFinite(Number(axis.label_offset));
-const hasAngle = axis && Number.isFinite(Number(axis.label_angle));
-if (!hasPosition && !hasOffset && !hasAngle) return { css: fallbackCss, style: null };
-if (rawPosition && typeof rawPosition === "object" && !Array.isArray(rawPosition)) {
-return { css: "font-weight:500;white-space:nowrap;", style: rawPosition };
-}
-const p = this.plot;
-const position = String(hasPosition ? rawPosition : "center").replace(/-/g, "_");
-const inside = position.startsWith("inside_");
-const anchor = inside ? position.slice("inside_".length) : position;
-const offset = hasOffset ? Number(axis.label_offset) : 0;
-const side = axis && axis.side;
-const anchorFrac = anchor === "start" ? 0 : (anchor === "end" ? 1 : 0.5);
-if (dim === "x") {
-const x = p.x + p.w * anchorFrac;
-const outsideY = side === "top" ? p.y - 34 : p.y + p.h + 24;
-const insideY = side === "top" ? p.y + 12 : p.y + p.h - 12;
-const y = (inside ? insideY : outsideY) +
-(side === "top" ? (inside ? offset : -offset) : (inside ? -offset : offset));
-const translateX = anchor === "start" ? 0 : (anchor === "end" ? -100 : -50);
-const angle = hasAngle ? Number(axis.label_angle) : 0;
-return {
-css:
-`left:${x}px;top:${y}px;` +
-`transform:translateX(${translateX}%) rotate(${angle}deg);` +
-"transform-origin:center;font-weight:500;white-space:nowrap;",
-style: null,
-};
-}
-const xOutside = side === "right" ? p.x + p.w + 40 : 10;
-const xInside = side === "right" ? p.x + p.w - 12 : p.x + 12;
-const x = (inside ? xInside : xOutside) +
-(side === "right" ? (inside ? -offset : offset) : (inside ? offset : -offset));
-const y = p.y + p.h * (1 - anchorFrac);
-const angle = hasAngle ? Number(axis.label_angle) : (side === "right" ? 90 : -90);
-return {
-css:
-`left:${x}px;top:${y}px;` +
-`transform:translate(-50%,-50%) rotate(${angle}deg);` +
-"transform-origin:center;font-weight:500;white-space:nowrap;",
-style: null,
-};
-}
-_drawChrome() {
-const s = this.spec;
-const dpr = this.dpr;
-const ctx = this.chrome.getContext("2d");
-ctx.setTransform(dpr, 0, 0, dpr, 0, 0);
-ctx.clearRect(0, 0, this.size.w, this.size.h);
-const now = this._now();
-const labelCadenceMs = this._viewAnim ? 80 : 0;
-const updateLabels = labelCadenceMs === 0
-|| this._lastLabelDraw === null
-|| now - this._lastLabelDraw >= labelCadenceMs;
-if (updateLabels) {
-this.labels.textContent = "";
-this._lastLabelDraw = now;
-}
-const p = this.plot;
-if (this.theme.bg) {
-ctx.fillStyle = cssColor(this.theme.bg);
-ctx.fillRect(p.x, p.y, p.w, p.h);
-}
-const xAxis = this._axis("x");
-const yAxis = this._axis("y");
-const extraXAxes = Object.values(this.axes).filter((axis) =>
-axis && axis.id !== "x" && String(axis.id || "").startsWith("x"));
-const extraYAxes = Object.values(this.axes).filter((axis) =>
-axis && axis.id !== "y" && String(axis.id || "").startsWith("y"));
-const hideX = this._axisTickLabelStrategy(xAxis) === "none";
-const hideY = this._axisTickLabelStrategy(yAxis) === "none";
-const xt = this._axisTicks(
-"x",
-this._axisTickTarget("x", Math.max(3, p.w / (xAxis.kind === "time" ? 90 : 80))),
-);
-const yt = this._axisTicks("y", this._axisTickTarget("y", Math.max(3, p.h / 45)));
-const xEdge = (px) => Math.min(p.x + p.w - 0.5, Math.max(p.x + 0.5, Math.round(px) + 0.5));
-const yEdge = (py) => Math.min(p.y + p.h - 0.5, Math.max(p.y + 0.5, Math.round(py) + 0.5));
-ctx.strokeStyle = this._axisStylePaint(xAxis, "grid_color", this.theme.grid);
-ctx.lineWidth = Math.max(0.5, this._axisStyleNumber(xAxis, "grid_width", 1));
-ctx.globalAlpha = this._axisStyleNumber(xAxis, "grid_opacity", 1);
-ctx.setLineDash(this._axisGridDash(xAxis));
-ctx.beginPath();
-for (const v of (hideX ? [] : xt.ticks)) {
-const px = this._dataPx("x", v);
-if (!Number.isFinite(px)) continue;
-const x = xEdge(px);
-ctx.moveTo(x, p.y);
-ctx.lineTo(x, p.y + p.h);
-}
-ctx.stroke();
-ctx.strokeStyle = this._axisStylePaint(yAxis, "grid_color", this.theme.grid);
-ctx.lineWidth = Math.max(0.5, this._axisStyleNumber(yAxis, "grid_width", 1));
-ctx.globalAlpha = this._axisStyleNumber(yAxis, "grid_opacity", 1);
-ctx.setLineDash(this._axisGridDash(yAxis));
-ctx.beginPath();
-for (const v of (hideY ? [] : yt.ticks)) {
-const py = this._dataPx("y", v);
-if (!Number.isFinite(py)) continue;
-const y = yEdge(py);
-ctx.moveTo(p.x, y);
-ctx.lineTo(p.x + p.w, y);
-}
-ctx.stroke();
-ctx.globalAlpha = 1;
-ctx.setLineDash([]);
-const octx = this.overlay.getContext("2d");
-octx.setTransform(dpr, 0, 0, dpr, 0, 0);
-octx.clearRect(0, 0, this.size.w, this.size.h);
-this._drawAnnotationShapes(octx);
-if (updateLabels) {
-const rule = (styleAxis, left, top, w, h, colorKey = "axis_color") => {
-const d = document.createElement("div");
-d.style.cssText =
-`position:absolute;left:${left}px;top:${top}px;width:${w}px;height:${h}px;` +
-`background:${this._axisStylePaint(styleAxis, colorKey, this.theme.axis)};` +
-"pointer-events:none;";
-this.labels.appendChild(d);
-};
-const frameSides = Array.isArray(s.frame_sides)
-? s.frame_sides
-: [xAxis.side || "bottom", yAxis.side || "left"];
-if (!hideY) {
-const yWidth = Math.max(1, this._axisStyleNumber(yAxis, "axis_width", 1));
-if (frameSides.includes("left")) rule(yAxis, p.x, p.y, yWidth, p.h);
-if (frameSides.includes("right")) rule(yAxis, p.x + p.w - yWidth, p.y, yWidth, p.h);
-}
-if (!hideX) {
-const xHeight = Math.max(1, this._axisStyleNumber(xAxis, "axis_width", 1));
-if (frameSides.includes("top")) rule(xAxis, p.x, p.y, p.w, xHeight);
-if (frameSides.includes("bottom")) rule(xAxis, p.x, p.y + p.h - xHeight, p.w, xHeight);
-}
-for (const axis of extraXAxes) {
-if (this._axisTickLabelStrategy(axis) === "none") continue;
-const h = Math.max(1, this._axisStyleNumber(axis, "axis_width", 1));
-const y = axis.side === "top" ? p.y : p.y + p.h - h;
-rule(axis, p.x, y, p.w, h);
-}
-for (const axis of extraYAxes) {
-if (this._axisTickLabelStrategy(axis) === "none") continue;
-const w = Math.max(1, this._axisStyleNumber(axis, "axis_width", 1));
-const x = axis.side === "left" ? p.x : p.x + p.w - w;
-rule(axis, x, p.y, w, p.h);
-}
-const tickParts = (axis) => {
-const length = Math.max(0, this._axisStyleNumber(axis, "tick_length", 0));
-const width = Math.max(0.5, this._axisStyleNumber(axis, "tick_width", 1));
-const direction = String(this._axisStyleValue(axis, "tick_direction") || "out");
-if (direction === "in") return { inward: length, outward: 0, width };
-if (direction === "inout") return { inward: length / 2, outward: length / 2, width };
-return { inward: 0, outward: length, width };
-};
-if (!hideX) {
-const tick = tickParts(xAxis);
-const side = xAxis.side || "bottom";
-const edge = side === "top" ? p.y : p.y + p.h;
-for (const value of xt.ticks) {
-const x = this._dataPx("x", value);
-if (!Number.isFinite(x) || x < p.x - 1 || x > p.x + p.w + 1) continue;
-const top = side === "top" ? edge - tick.outward : edge - tick.inward;
-rule(xAxis, x - tick.width / 2, top, tick.width, tick.inward + tick.outward, "tick_color");
-}
-}
-if (!hideY) {
-const tick = tickParts(yAxis);
-const side = yAxis.side || "left";
-const edge = side === "right" ? p.x + p.w : p.x;
-for (const value of yt.ticks) {
-const y = this._dataPx("y", value);
-if (!Number.isFinite(y) || y < p.y - 1 || y > p.y + p.h + 1) continue;
-const left = side === "right" ? edge - tick.inward : edge - tick.outward;
-rule(yAxis, left, y - tick.width / 2, tick.inward + tick.outward, tick.width, "tick_color");
-}
-}
-for (const axis of extraXAxes) {
-if (this._axisTickLabelStrategy(axis) === "none") continue;
-const ticks = this._axisTicks(
-axis.id,
-this._axisTickTarget(axis.id, Math.max(3, p.w / (axis.kind === "time" ? 90 : 80))),
-);
-const tick = tickParts(axis);
-const side = axis.side || "bottom";
-const edge = side === "top" ? p.y : p.y + p.h;
-for (const value of ticks.ticks) {
-const x = this._dataPx(axis.id, value);
-if (!Number.isFinite(x) || x < p.x - 1 || x > p.x + p.w + 1) continue;
-const top = side === "top" ? edge - tick.outward : edge - tick.inward;
-rule(axis, x - tick.width / 2, top, tick.width, tick.inward + tick.outward, "tick_color");
-}
-}
-for (const axis of extraYAxes) {
-if (this._axisTickLabelStrategy(axis) === "none") continue;
-const ticks = this._axisTicks(
-axis.id,
-this._axisTickTarget(axis.id, Math.max(3, p.h / 45)),
-);
-const tick = tickParts(axis);
-const side = axis.side || "right";
-const edge = side === "right" ? p.x + p.w : p.x;
-for (const value of ticks.ticks) {
-const y = this._dataPx(axis.id, value);
-if (!Number.isFinite(y) || y < p.y - 1 || y > p.y + p.h + 1) continue;
-const left = side === "right" ? edge - tick.inward : edge - tick.outward;
-rule(axis, left, y - tick.width / 2, tick.inward + tick.outward, tick.width, "tick_color");
-}
-}
-}
-const label = (text, css, axis, kind = "tick", extraStyle = null) => {
-if (!updateLabels) return;
-const d = document.createElement("div");
-d.textContent = text;
-d.dataset.xyLabelKind = kind;
-d.dataset.xyAxis = axis && axis.id !== undefined ? String(axis.id) : "";
-d.dataset.xyAxisSide = axis && axis.side ? String(axis.side) : "";
-const colorKey = kind === "label"
-? "label_color"
-: (this._axisStyleValue(axis, "tick_label_color") !== undefined
-? "tick_label_color" : "tick_color");
-const sizeKey = kind === "label"
-? "label_size"
-: (this._axisStyleValue(axis, "tick_label_size") !== undefined
-? "tick_label_size" : "tick_size");
-let color = "";
-if (this._axisStyleValue(axis, colorKey) !== undefined) {
-color = `color:${this._axisStylePaint(axis, colorKey, this.theme.label)};`;
-}
-let size = "";
-if (this._axisStyleValue(axis, sizeKey) !== undefined) {
-size = `font-size:${Math.max(8, this._axisStyleNumber(axis, sizeKey, 11))}px;`;
-}
-d.style.cssText = `position:absolute;line-height:1.2;white-space:nowrap;${color}${size}${css}`;
-this._applySlot(d, kind === "label" ? "axis_title" : "tick_label");
-this._applyStyle(d, extraStyle);
-this.labels.appendChild(d);
-};
-const xLabelCandidates = [];
-for (const v of (xt.labels || xt.ticks)) {
-const px = this._dataPx("x", v);
-if (px < p.x - 1 || px > p.x + p.w + 1) continue;
-const text = this._axisTickText(xAxis, v, xt.step);
-xLabelCandidates.push({ pos: px, text });
-}
-const tickLabelSize = this._axisStyleNumber(
-xAxis,
-"tick_label_size",
-this._axisStyleNumber(xAxis, "tick_size", 11),
-);
-for (const item of this._layoutTickLabels(xAxis, "x", xLabelCandidates)) {
-const rowOffset = Number(item.row || 0) * (Math.max(8, tickLabelSize) + 4);
-const top = xAxis.side === "top" ? p.y - 18 - rowOffset : p.y + p.h + 6 + rowOffset;
-const placement = this._xTickLabelTransform(xAxis, item.angle);
-label(
-item.text,
-`left:${item.pos}px;top:${top}px;transform:${placement.transform};` +
-`transform-origin:${placement.origin};`,
-xAxis,
-);
-}
-for (const axis of extraXAxes) {
-const ticks = this._axisTicks(
-axis.id,
-this._axisTickTarget(axis.id, Math.max(3, p.w / (axis.kind === "time" ? 90 : 80))),
-);
-const labelCandidates = [];
-for (const value of (ticks.labels || ticks.ticks)) {
-const px = this._dataPx(axis.id, value);
-if (px < p.x - 1 || px > p.x + p.w + 1) continue;
-labelCandidates.push({ pos: px, text: this._axisTickText(axis, value, ticks.step) });
-}
-for (const item of this._layoutTickLabels(axis, "x", labelCandidates)) {
-const tickLabelSize = this._axisStyleNumber(
-axis,
-"tick_label_size",
-this._axisStyleNumber(axis, "tick_size", 11),
-);
-const rowOffset = Number(item.row || 0) * (Math.max(8, tickLabelSize) + 4);
-const top = axis.side === "top" ? p.y - 18 - rowOffset : p.y + p.h + 6 + rowOffset;
-const placement = this._xTickLabelTransform(axis, item.angle);
-label(
-item.text,
-`left:${item.pos}px;top:${top}px;transform:${placement.transform};` +
-`transform-origin:${placement.origin};`,
-axis,
-);
-}
-if (axis.label && this._axisTickLabelStrategy(axis) !== "none") {
-const top = axis.side === "top" ? p.y - 34 : p.y + p.h + 24;
-const fallbackCss =
-`left:${p.x + p.w / 2}px;top:${top}px;transform:translateX(-50%);font-weight:500;`;
-const placement = this._axisLabelCss(axis, "x", fallbackCss);
-label(axis.label, placement.css, axis, "label", placement.style);
-}
-}
-const yLabelCandidates = [];
-for (const v of (yt.labels || yt.ticks)) {
-const py = this._dataPx("y", v);
-if (py < p.y - 1 || py > p.y + p.h + 1) continue;
-const text = this._axisTickText(yAxis, v, yt.step);
-yLabelCandidates.push({ pos: py, text });
-}
-const yLabelCss = (axis, onRight, item) => {
-const pin = onRight ? p.x + p.w + 8 : p.x - 8;
-const anchor = this._axisTickLabelAnchor(axis) ?? (onRight ? "start" : "end");
-const shift = anchor === "end" ? "-100%" : anchor === "start" ? "0%" : "-50%";
-const originX = anchor === "end" ? "right" : anchor === "start" ? "left" : "center";
-return `left:${pin}px;top:${item.pos}px;` +
-`transform:translate(${shift},-50%) rotate(${Number(item.angle || 0)}deg);` +
-`transform-origin:${originX} center;`;
-};
-for (const item of this._layoutTickLabels(yAxis, "y", yLabelCandidates)) {
-label(item.text, yLabelCss(yAxis, yAxis.side === "right", item), yAxis);
-}
-for (const axis of extraYAxes) {
-const ticks = this._axisTicks(axis.id, this._axisTickTarget(axis.id, Math.max(3, p.h / 45)));
-const labelCandidates = [];
-for (const v of (ticks.labels || ticks.ticks)) {
-const py = this._dataPx(axis.id, v);
-if (py < p.y - 1 || py > p.y + p.h + 1) continue;
-const text = this._axisTickText(axis, v, ticks.step);
-labelCandidates.push({ pos: py, text });
-}
-for (const item of this._layoutTickLabels(axis, "y", labelCandidates)) {
-label(item.text, yLabelCss(axis, axis.side !== "left", item), axis);
-}
-if (axis.label && this._axisTickLabelStrategy(axis) !== "none") {
-const fallbackCss = axis.side === "left"
-? `left:10px;top:${p.y + p.h / 2}px;transform:rotate(-90deg) translateX(50%);transform-origin:left;font-weight:500;`
-: `left:${p.x + p.w + 40}px;top:${p.y + p.h / 2}px;transform:rotate(90deg) translateX(-50%);transform-origin:left;font-weight:500;`;
-const placement = this._axisLabelCss(axis, "y", fallbackCss);
-label(axis.label, placement.css, axis, "label", placement.style);
-}
-}
-if (s.x_axis.label && !hideX) {
-const top = xAxis.side === "top" ? p.y - 34 : p.y + p.h + 24;
-const fallbackCss = `left:${p.x + p.w / 2}px;top:${top}px;transform:translateX(-50%);font-weight:500;`;
-const placement = this._axisLabelCss(xAxis, "x", fallbackCss);
-label(s.x_axis.label, placement.css, xAxis, "label", placement.style);
-}
-if (s.y_axis.label && !hideY) {
-const fallbackCss = yAxis.side === "right"
-? `left:${p.x + p.w + 40}px;top:${p.y + p.h / 2}px;transform:rotate(90deg) translateX(-50%);transform-origin:left;font-weight:500;`
-: `left:10px;top:${p.y + p.h / 2}px;transform:rotate(-90deg) translateX(50%);transform-origin:left;font-weight:500;`;
-const placement = this._axisLabelCss(yAxis, "y", fallbackCss);
-label(s.y_axis.label, placement.css, yAxis, "label", placement.style);
-}
-this._drawAnnotationLabels(updateLabels);
-}
-_interactionTransitionActive() {
-const activeStart = (v) => v !== undefined && v !== null;
-return !!this._viewAnim || this.gpuTraces.some((g) =>
-activeStart(g._densityFadeStart) ||
-activeStart(g._densitySwitchFadeStart) ||
-activeStart(g._drillFadeStart) ||
-activeStart(g._drillExitFadeStart) ||
-!!g._densityNormAnim);
-}
-_renderPick() {
-const gl = this.gl;
-if (this._pickW !== this.canvas.width || this._pickH !== this.canvas.height) {
-this._allocPickTex();
-}
-gl.bindFramebuffer(gl.FRAMEBUFFER, this.pickFbo);
-gl.viewport(0, 0, this.canvas.width, this.canvas.height);
-gl.disable(gl.BLEND);
-gl.clearColor(0, 0, 0, 0);
-gl.clear(gl.COLOR_BUFFER_BIT);
-const { x0, x1, y0, y1 } = this.view;
-const prog = this.pickProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform1f(u("u_dpr"), this.dpr);
-let base = 1;
-for (const g of this.gpuTraces) {
-const pg = g.tier === "density"
-? (g.drill && !g._drillDying && this._viewInside(g.drill.win) ? g.drill : null)
-: (markOf(g.trace.kind).pointPick ? g : null);
-if (!pg || !pg.n || base + pg.n > 0x7fffffff) {
-g.pickBase = -1;
-g.pickCount = 0;
-continue;
-}
-const [px0, px1] = this._axisRange(pg.xAxis || g.xAxis);
-const [py0, py1] = this._axisRange(pg.yAxis || g.yAxis);
-const xm = this._map(pg.xMeta, px0, px1, pg.xAxis || g.xAxis);
-const ym = this._map(pg.yMeta, py0, py1, pg.yAxis || g.yAxis);
-gl.uniform2f(u("u_xmap"), xm[0], xm[1]);
-gl.uniform2f(u("u_ymap"), ym[0], ym[1]);
-this._setAxisUniforms(prog, "u_x", pg.xMeta, pg.xAxis || g.xAxis);
-this._setAxisUniforms(prog, "u_y", pg.yMeta, pg.yAxis || g.yAxis);
-gl.uniform1f(u("u_size"), pg.size);
-gl.uniform1i(u("u_sizeMode"), pg.sizeMode);
-gl.uniform2f(u("u_sizeRange"), pg.sizeRange[0], pg.sizeRange[1]);
-const transitionOn = !!(pg._transitionPrevXBuf && pg._transitionPrevYBuf);
-gl.uniform1i(u("u_transitionActive"), transitionOn ? 1 : 0);
-gl.uniform1f(u("u_transitionProgress"), pg._transitionPositionProgress ?? 1);
-gl.uniform1i(u("u_pick_base"), base);
-g.pickBase = base;
-g.pickCount = pg.n;
-const sizeOn = pg.sizeMode === 1 && pg.sBuf;
-this._bindVao(
-pg,
-"pick",
-[pg.xBuf._fcId, pg.yBuf._fcId, sizeOn ? pg.sBuf._fcId : 0,
-transitionOn ? pg._transitionPrevXBuf._fcId : 0,
-transitionOn ? pg._transitionPrevYBuf._fcId : 0],
-() => {
-this._vaoAttr(ATTR_SLOTS.ax, pg.xBuf, 0, 0);
-this._vaoAttr(ATTR_SLOTS.ay, pg.yBuf, 0, 0);
-if (sizeOn) this._vaoAttr(ATTR_SLOTS.a_sval, pg.sBuf, 0, 0);
-if (transitionOn) {
-this._vaoAttr(ATTR_SLOTS.a_prevx, pg._transitionPrevXBuf, 0, 0);
-this._vaoAttr(ATTR_SLOTS.a_prevy, pg._transitionPrevYBuf, 0, 0);
-}
-}
-);
-if (!sizeOn) gl.vertexAttrib1f(ATTR_SLOTS.a_sval, 0.5);
-gl.drawArrays(gl.POINTS, 0, pg.n);
-base += pg.n;
-}
-gl.enable(gl.BLEND);
-gl.bindFramebuffer(gl.FRAMEBUFFER, null);
-this._pickDirty = false;
-}
-_pickAt(cssX, cssY) {
-if (
-!this._pickable ||
-this._glLost ||
-!this.gl ||
-this.gl.isContextLost()
-) return null;
-if (this._pickDirty) {
-try {
-this._renderPick();
-} catch (err) {
-if (!this.gl || this.gl.isContextLost()) return null;
-throw err;
-}
-}
-const gl = this.gl;
-const px = Math.round(cssX * this.dpr);
-const py = Math.round((this.plot.h - cssY) * this.dpr);
-if (px < 0 || py < 0 || px >= this.canvas.width || py >= this.canvas.height) return null;
-const buf = new Uint8Array(4);
-gl.bindFramebuffer(gl.FRAMEBUFFER, this.pickFbo);
-gl.readPixels(px, py, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, buf);
-gl.bindFramebuffer(gl.FRAMEBUFFER, null);
-const id = buf[0] + buf[1] * 0x100 + buf[2] * 0x10000 + buf[3] * 0x1000000;
-if (id === 0) return null;
-const g = this.gpuTraces.find(
-(t) => t.pickBase > 0 && id >= t.pickBase && id < t.pickBase + t.pickCount
-);
-if (!g) return null;
-return { trace: g.trace.id, index: id - g.pickBase, g };
-}
-_decodeValue(values, meta, index) {
-if (!values || !meta || index < 0 || index >= values.length) return NaN;
-return values[index] / (meta.scale || 1) + meta.offset;
-}
-_dataFromCanvas(cssX, cssY, xAxisId = "x", yAxisId = "y") {
-const [x0, x1] = this._axisRange(xAxisId);
-const [y0, y1] = this._axisRange(yAxisId);
-const xAxis = this._axis(xAxisId);
-const yAxis = this._axis(yAxisId);
-const cx0 = this._axisCoord(xAxis, x0);
-const cx1 = this._axisCoord(xAxis, x1);
-const cy0 = this._axisCoord(yAxis, y0);
-const cy1 = this._axisCoord(yAxis, y1);
-if (![cx0, cx1, cy0, cy1].every(Number.isFinite)) return [NaN, NaN];
-return [
-this._axisValue(xAxis, cx0 + (cssX / this.plot.w) * (cx1 - cx0)),
-this._axisValue(yAxis, cy1 - (cssY / this.plot.h) * (cy1 - cy0)),
-];
-}
-_nearestCpuIndex(g, dataX) {
-const cpu = g && g._cpu;
-if (!cpu || !cpu.x || !cpu.x.length) return -1;
-const xMeta = cpu.xMeta || g.xMeta;
-const axis = this._axis(g.xAxis);
-const target = this._axisCoord(axis, dataX);
-let best = -1;
-let bestDist = Infinity;
-const limit = Math.min(cpu.x.length, g.n || cpu.x.length);
-for (let i = 0; i < limit; i++) {
-const starts = g._transitionPrevXValues;
-const progress = g._transitionPositionProgress;
-const xEncoded = starts && Number.isFinite(progress)
-? starts[i] + (cpu.x[i] - starts[i]) * progress
-: cpu.x[i];
-const x = xEncoded / (xMeta.scale || 1) + xMeta.offset;
-const d = Math.abs(this._axisCoord(axis, x) - target);
-if (d < bestDist) {
-bestDist = d;
-best = i;
-}
-}
-return best;
-}
-_hoverAt(cssX, cssY) {
-const maxPx = 12;
-let best = null;
-for (const g of this.gpuTraces) {
-if (g.tier === "density") continue;
-const [dataX, dataY] = this._dataFromCanvas(cssX, cssY, g.xAxis, g.yAxis);
-if (!Number.isFinite(dataX) || !Number.isFinite(dataY)) continue;
-if (g.heatmap && g._cpuHeatmap) {
-const hit = this._heatmapHover(g, dataX, dataY);
-if (hit) return hit;
-continue;
-}
-if (g.trace.bar && g._cpu) {
-const hit = this._barHover(g, dataX, dataY);
-if (hit) return hit;
-continue;
-}
-if (g._cpuRect) {
-const hit = this._rectHover(g, dataX, dataY);
-if (hit) return hit;
-continue;
-}
-if (!g._cpu || !g._cpu.x || !g._cpu.y) continue;
-const idx = this._nearestCpuIndex(g, dataX);
-if (idx < 0) continue;
-const progress = g._transitionPositionProgress;
-const xEncoded = g._transitionPrevXValues && Number.isFinite(progress)
-? g._transitionPrevXValues[idx] + (g._cpu.x[idx] - g._transitionPrevXValues[idx]) * progress
-: g._cpu.x[idx];
-const yEncoded = g._transitionPrevYValues && Number.isFinite(progress)
-? g._transitionPrevYValues[idx] + (g._cpu.y[idx] - g._transitionPrevYValues[idx]) * progress
-: g._cpu.y[idx];
-const x = xEncoded / (g._cpu.xMeta.scale || 1) + g._cpu.xMeta.offset;
-const y = yEncoded / (g._cpu.yMeta.scale || 1) + g._cpu.yMeta.offset;
-const px = this._dataPx(g.xAxis, x) - this.plot.x;
-const py = this._dataPx(g.yAxis, y) - this.plot.y;
-const dist = Math.hypot(px - cssX, py - cssY);
-if (dist <= maxPx && (!best || dist < best.dist)) {
-best = { trace: g.trace.id, index: idx, g, dist, synthetic: true };
-}
-}
-return best;
-}
-_barHover(g, dataX, dataY) {
-const cpu = g._cpu;
-const horizontal = g.orientation === 1;
-const limit = Math.min(cpu.x.length, cpu.y.length, g.n || cpu.x.length);
-for (let i = 0; i < limit; i++) {
-const x = this._decodeValue(cpu.x, cpu.xMeta, i);
-const y = this._decodeValue(cpu.y, cpu.yMeta, i);
-const value0 = g.value0Mode === 1 && cpu.value0
-? this._decodeValue(cpu.value0, horizontal ? g.value0Meta : g.value0Meta, i)
-: g.value0Const;
-const lo = Math.min(value0 ?? 0, horizontal ? x : y);
-const hi = Math.max(value0 ?? 0, horizontal ? x : y);
-if (horizontal) {
-if (dataX >= lo && dataX <= hi && Math.abs(dataY - y) <= g.width / 2) {
-return { trace: g.trace.id, index: i, g, synthetic: true };
-}
-} else if (Math.abs(dataX - x) <= g.width / 2 && dataY >= lo && dataY <= hi) {
-return { trace: g.trace.id, index: i, g, synthetic: true };
-}
-}
-return null;
-}
-_rectHover(g, dataX, dataY) {
-const r = g._cpuRect;
-const limit = Math.min(r.x0.length, r.x1.length, r.y0.length, r.y1.length, g.n || r.x0.length);
-for (let i = 0; i < limit; i++) {
-const x0 = this._decodeValue(r.x0, r.x0Meta, i);
-const x1 = this._decodeValue(r.x1, r.x1Meta, i);
-const y0 = this._decodeValue(r.y0, r.y0Meta, i);
-const y1 = this._decodeValue(r.y1, r.y1Meta, i);
-if (
-dataX >= Math.min(x0, x1) && dataX <= Math.max(x0, x1) &&
-dataY >= Math.min(y0, y1) && dataY <= Math.max(y0, y1)
-) {
-return { trace: g.trace.id, index: i, g, synthetic: true };
-}
-}
-return null;
-}
-_heatmapHover(g, dataX, dataY) {
-const h = g.heatmap;
-if (!h || !g._cpuHeatmap) return null;
-const [x0, x1] = h.xRange;
-const [y0, y1] = h.yRange;
-if (dataX < x0 || dataX > x1 || dataY < y0 || dataY > y1) return null;
-const [ax0, ax1] = this._axisRange(g.xAxis) ?? [this.view.x0, this.view.x1];
-const [ay0, ay1] = this._axisRange(g.yAxis) ?? [this.view.y0, this.view.y1];
-const fx = ((ax0 ?? this.view.x0) > (ax1 ?? this.view.x1)) ? (x1 - dataX) : (dataX - x0);
-const fy = ((ay0 ?? this.view.y0) > (ay1 ?? this.view.y1)) ? (y1 - dataY) : (dataY - y0);
-const col = Math.min(h.w - 1, Math.max(0, Math.floor((fx / (x1 - x0)) * h.w)));
-const row = Math.min(h.h - 1, Math.max(0, Math.floor((fy / (y1 - y0)) * h.h)));
-return { trace: g.trace.id, index: row * h.w + col, g, heatmap: { row, col }, synthetic: true };
-}
-_drawKeepPick() {
-this.draw(true);
-}
-_hover(e) {
-this._a11yKeyboardReadout = null;
-if (this._interactionTransitionActive()) {
-const hadHover = this._hoverId !== -1;
-this._hoverId = -1;
-this._hoverTarget = null;
-this._lastHoverXY = null;
-this._pickSeq = (this._pickSeq || 0) + 1;
-this._hideTooltip();
-if (hadHover) this.draw();
-return;
-}
-const rect = this.canvas.getBoundingClientRect();
-const cssX = e.clientX - rect.left;
-const cssY = e.clientY - rect.top;
-const hit = this._pickAt(cssX, cssY) || this._hoverAt(cssX, cssY);
-if (!hit) {
-const hadHover = this._hoverId !== -1;
-this._hoverId = -1;
-this._hoverTarget = null;
-this._lastHoverXY = null;
-this._pickSeq = (this._pickSeq || 0) + 1;
-this._hideTooltip();
-if (hadHover) this._drawKeepPick();
-return;
-}
-const id = hit.trace * 1e9 + hit.index;
-this._lastHoverXY = { clientX: e.clientX, clientY: e.clientY };
-if (id === this._hoverId) {
-if (!this._tooltipAnchor) this._renderTooltip(this._lastRow, e.clientX, e.clientY);
-return;
-}
-this._hoverId = id;
-this._hoverTarget = hit;
-this._showTooltip(hit, e.clientX, e.clientY);
-this._drawKeepPick();
-}
-_asF32(b) {
-if (b instanceof ArrayBuffer) return new Float32Array(b);
-if (b.byteOffset % 4 === 0) {
-return new Float32Array(b.buffer, b.byteOffset, Math.floor(b.byteLength / 4));
-}
-return new Float32Array(b.buffer.slice(b.byteOffset, b.byteOffset + b.byteLength));
-}
-_asU8(b) {
-if (b instanceof ArrayBuffer) return new Uint8Array(b);
-return new Uint8Array(b.buffer, b.byteOffset, b.byteLength);
-}
-_asU32(b) {
-if (b instanceof ArrayBuffer) return new Uint32Array(b);
-if (b.byteOffset % 4 === 0) {
-return new Uint32Array(b.buffer, b.byteOffset, Math.floor(b.byteLength / 4));
-}
-return new Uint32Array(b.buffer.slice(b.byteOffset, b.byteOffset + b.byteLength));
-}
-_applyTheme() {
-this.theme = readTheme(this.root);
-this._themeStale = !this.root.isConnected;
-for (const g of this.gpuTraces) {
-markOf(g.trace.kind).refreshColor?.(this, g);
-}
-}
-refreshTheme() {
-if (this._destroyed) return;
-this._applyTheme();
-this.draw();
-}
-_healStaleTheme() {
-if (!this._themeStale || !this.root.isConnected) return false;
-this._applyTheme();
-return true;
-}
-destroy() {
-if (this._destroyed) return;
-this._destroyed = true;
-if (this._dataAnim) {
-this._emitAnimationLifecycle?.("end", this._dataAnim.phase, { cancelled: true });
-}
-XY_CONTEXT_GOVERNOR.unregister(this);
-this._ctxIo?.disconnect();
-this._ctxIo = null;
-clearTimeout(this._ctxRecoveryTimer);
-this._ctxRecoveryTimer = null;
-clearTimeout(this._rebinTimer);
-if (this._rebinWorker) {
-this._rebinWorker.terminate();
-if (this._rebinWorker._fcUrl) URL.revokeObjectURL(this._rebinWorker._fcUrl);
-this._rebinWorker = null;
-}
-this._ro?.disconnect();
-this._io?.disconnect();
-this._io = null;
-this._themeWatch?.removeEventListener?.("change", this._onScheme);
-this._themeMutationObserver?.disconnect();
-this._themeMutationObserver = null;
-this._dprMq?.removeEventListener?.("change", this._onDprChange);
-this._dprMq = null;
-this._unsubscribeComm?.();
-this._unsubscribeComm = null;
-for (const { target, type, handler, options } of this._listeners.splice(0)) {
-target.removeEventListener(type, handler, options);
-}
-clearTimeout(this._viewTimer);
-this._viewTimer = null;
-if (this._viewEventRaf) cancelAnimationFrame(this._viewEventRaf);
-this._viewEventRaf = null;
-if (this._wheelZoomRaf) cancelAnimationFrame(this._wheelZoomRaf);
-this._wheelZoomRaf = null;
-this._pendingWheelZoom = null;
-clearTimeout(this._wheelZoomEndTimer);
-this._wheelZoomEndTimer = null;
-this._wheelGesture = null;
-this._linkChannel?.close?.();
-this._linkChannel = null;
-if (this._raf) cancelAnimationFrame(this._raf);
-this._raf = null;
-if (this._resizeRaf) cancelAnimationFrame(this._resizeRaf);
-this._resizeRaf = null;
-this._pendingResize = null;
-this._resizeNeedsMeasure = false;
-this._cancelViewAnimation();
-if (this._dataAnimRaf) cancelAnimationFrame(this._dataAnimRaf);
-this._dataAnimRaf = null;
-this._dataAnim = null;
-this._destroyTransitionOldTraces?.();
-this._destroyGlResources();
-const loseExt = this.gl && this.gl.getExtension("WEBGL_lose_context");
-if (loseExt) loseExt.loseContext();
-this.gl = null;
-this.root.remove();
-}
-_deleteBuffers(obj, names) {
-const gl = this.gl;
-if (!gl || !obj) return;
-const seen = new Set();
-for (const name of names) {
-const buf = obj[name];
-if (buf && !seen.has(buf)) {
-seen.add(buf);
-gl.deleteBuffer(buf);
-}
-obj[name] = null;
-}
-}
-_destroyTraceResources(g, texSeen) {
-if (!g) return;
-this._destroyDensitySample(g);
-this._deleteVaos(g);
-this._deleteVaos(g.drill);
-this._deleteBuffers(g, [
-"xBuf", "yBuf", "cBuf", "sBuf", "selBuf", "baseBuf",
-"x0Buf", "x1Buf", "x2Buf", "y0Buf", "y1Buf", "y2Buf",
-"posBuf", "value1Buf", "value0Buf",
-"_transitionPrevXBuf", "_transitionPrevYBuf",
-"_transitionPrevPosBuf", "_transitionPrevValue1Buf", "_transitionPrevValue0Buf",
-]);
-this._deleteBuffers(g.drill, ["xBuf", "yBuf", "cBuf", "sBuf", "selBuf", "dBuf"]);
-const textures = [];
-if (g.heatmap) textures.push(g.heatmap.tex);
-for (const d of g.densityCache || []) textures.push(d && d.tex);
-if (g.density) textures.push(g.density.tex);
-if (g._shownDensity) textures.push(g._shownDensity.tex);
-for (const tex of textures) {
-if (tex && !texSeen.has(tex)) {
-texSeen.add(tex);
-this.gl.deleteTexture(tex);
-}
-}
-g.drill = null;
-g.density = null;
-g._shownDensity = null;
-g.densityCache = [];
-g.heatmap = null;
-g._cpu = null;
-}
-_destroyGlResources() {
-const gl = this.gl;
-if (!gl) return;
-const texSeen = new Set();
-for (const g of this.gpuTraces || []) this._destroyTraceResources(g, texSeen);
-for (const tex of this._lutCache.values()) {
-if (tex && !texSeen.has(tex)) {
-texSeen.add(tex);
-gl.deleteTexture(tex);
-}
-}
-this._lutCache.clear();
-if (this.pickFbo) gl.deleteFramebuffer(this.pickFbo);
-if (this.pickTex && !texSeen.has(this.pickTex)) gl.deleteTexture(this.pickTex);
-this.pickFbo = null;
-this.pickTex = null;
-if (this.quad) gl.deleteBuffer(this.quad);
-this.quad = null;
-if (this.quadVao) gl.deleteVertexArray(this.quadVao);
-this.quadVao = null;
-for (const p of this._progCache ? this._progCache.values() : []) {
-if (p) gl.deleteProgram(p);
-}
-if (this._progCache) this._progCache.clear();
-this._glPrograms = this._progCache;
-this.gpuTraces = [];
-}
-}
-const XY_ANNOTATION_SHAPE_STYLE_KEYS = new Set([
-"color",
-"label_color",
-"label_opacity",
-"opacity",
-"width",
-"head_size",
-"head_style",
-"tail_style",
-"shaft_width_start",
-"shaft_width_end",
-"curve",
-"angle_a",
-"angle_b",
-"gap_start",
-"gap_end",
-"start_offset",
-"label_clear",
-"dash",
-"span_start",
-"span_end",
-"size",
-"symbol",
-"stroke_color",
-"stroke_width",
-"coordinate_space",
-]);
-function xyLabelClearExit(style, tangent) {
-if (typeof style.label_clear !== "string") return 0;
-const parts = style.label_clear.split(",").map(Number);
-if (parts.length !== 4 || parts.some((p) => !Number.isFinite(p) || p < 0)) return 0;
-const [left, right, up, down] = parts;
-const [tx, ty] = tangent;
-const exitX = tx > 1e-9 ? right / tx : tx < -1e-9 ? left / -tx : Infinity;
-const exitY = ty > 1e-9 ? down / ty : ty < -1e-9 ? up / -ty : Infinity;
-const exit = Math.min(exitX, exitY);
-return Number.isFinite(exit) ? exit : 0;
-}
-function xyArrowGeometry(x0, y0, x1, y1, style) {
-const num = (v) => (Number.isFinite(Number(v)) ? Number(v) : null);
-if (typeof style.start_offset === "string") {
-const offset = style.start_offset.split(",").map(Number);
-if (offset.length === 2 && offset.every(Number.isFinite)) {
-x0 += offset[0];
-y0 += offset[1];
-}
-}
-const angleA = num(style.angle_a);
-const angleB = num(style.angle_b);
-const curve = num(style.curve);
-let cx = null;
-let cy = null;
-if (angleA !== null && angleB !== null) {
-const a = (-angleA * Math.PI) / 180;
-const b = (-angleB * Math.PI) / 180;
-const denom = Math.cos(a) * Math.sin(b) - Math.sin(a) * Math.cos(b);
-if (Math.abs(denom) > 1e-6) {
-const t = ((x1 - x0) * Math.sin(b) - (y1 - y0) * Math.cos(b)) / denom;
-cx = x0 + t * Math.cos(a);
-cy = y0 + t * Math.sin(a);
-}
-} else if (curve) {
-const dx = x1 - x0;
-const dy = y1 - y0;
-cx = (x0 + x1) / 2 + curve * dy;
-cy = (y0 + y1) / 2 - curve * dx;
-}
-const toward = (px, py, qx, qy) => {
-const d = Math.hypot(qx - px, qy - py) || 1;
-return [(qx - px) / d, (qy - py) / d];
-};
-const t0 = cx === null ? toward(x0, y0, x1, y1) : toward(x0, y0, cx, cy);
-const t1 = cx === null ? toward(x1, y1, x0, y0) : toward(x1, y1, cx, cy);
-const gapStart = Math.max(0, num(style.gap_start) || 0, xyLabelClearExit(style, t0));
-const gapEnd = Math.max(0, num(style.gap_end) || 0);
-const span = Math.hypot(x1 - x0, y1 - y0);
-const trim = gapStart + gapEnd < span * 0.9;
-const p0 = trim ? [x0 + gapStart * t0[0], y0 + gapStart * t0[1]] : [x0, y0];
-const p1 = trim ? [x1 + gapEnd * t1[0], y1 + gapEnd * t1[1]] : [x1, y1];
-const dir1 = cx === null ? toward(p0[0], p0[1], p1[0], p1[1]) : toward(cx, cy, p1[0], p1[1]);
-const dir0 = cx === null ? toward(p1[0], p1[1], p0[0], p0[1]) : toward(cx, cy, p0[0], p0[1]);
-return { p0, p1, control: cx === null ? null : [cx, cy], dir0, dir1 };
-}
-function xyArrowShaftPoints(geom, samples = 24) {
-const [x0, y0] = geom.p0;
-const [x1, y1] = geom.p1;
-if (!geom.control) return [[x0, y0], [x1, y1]];
-const [cx, cy] = geom.control;
-const points = [];
-for (let i = 0; i <= samples; i++) {
-const t = i / samples;
-const u = 1 - t;
-points.push([u * u * x0 + 2 * u * t * cx + t * t * x1, u * u * y0 + 2 * u * t * cy + t * t * y1]);
-}
-return points;
-}
-function xyTrimPolylineEnd(points, trim) {
-if (!(trim > 0) || points.length < 2) return points;
-const out = points.slice();
-let remaining = trim;
-while (out.length >= 2) {
-const [ax, ay] = out[out.length - 2];
-const [bx, by] = out[out.length - 1];
-const seg = Math.hypot(bx - ax, by - ay);
-if (seg > remaining) {
-const t = 1 - remaining / seg;
-out[out.length - 1] = [ax + t * (bx - ax), ay + t * (by - ay)];
-return out;
-}
-remaining -= seg;
-out.pop();
-}
-return out;
-}
-function xyTaperPolygon(points, w0, w1) {
-const left = [];
-const right = [];
-const count = points.length;
-for (let i = 0; i < count; i++) {
-const [px, py] = points[i];
-const [ax, ay] = points[Math.max(0, i - 1)];
-const [bx, by] = points[Math.min(count - 1, i + 1)];
-const d = Math.hypot(bx - ax, by - ay) || 1;
-const nx = -(by - ay) / d;
-const ny = (bx - ax) / d;
-const half = (w0 + (w1 - w0) * (i / Math.max(1, count - 1))) / 2;
-left.push([px + half * nx, py + half * ny]);
-right.push([px - half * nx, py - half * ny]);
-}
-return left.concat(right.reverse());
-}
-Object.assign(ChartView.prototype, {
-_annotationPaint(style, fallback) {
-return safeCssPaint(this.root, style && style.color, fallback);
-},
-_annotationLabelPaint(style, fallback) {
-return safeCssPaint(this.root, style && (style.label_color || style.color), fallback);
-},
-_annotationStrokePaint(style, fallback) {
-return safeCssPaint(this.root, style && style.stroke_color, fallback);
-},
-_drawAnnotationMarker(ctx, x, y, style, ann) {
-if (!Number.isFinite(x) || !Number.isFinite(y)) return;
-const r = Math.max(1, this._styleNumber(style, "size", Number(ann.size) || 8) / 2);
-const symbol = ["circle", "square", "diamond", "cross"].includes(ann.symbol) ? ann.symbol : "circle";
-ctx.save();
-ctx.globalAlpha = this._styleNumber(style, "opacity", 1);
-ctx.fillStyle = this._annotationPaint(style, [0.15, 0.39, 0.92, 1]);
-ctx.strokeStyle = symbol === "cross"
-? this._annotationPaint(style, [0.15, 0.39, 0.92, 1])
-: this._annotationStrokePaint(style, [1, 1, 1, 1]);
-ctx.lineWidth = Math.max(0, this._styleNumber(style, "stroke_width", 1.5));
-ctx.beginPath();
-if (symbol === "square") {
-ctx.rect(x - r, y - r, r * 2, r * 2);
-} else if (symbol === "diamond") {
-ctx.moveTo(x, y - r);
-ctx.lineTo(x + r, y);
-ctx.lineTo(x, y + r);
-ctx.lineTo(x - r, y);
-ctx.closePath();
-} else if (symbol === "cross") {
-ctx.moveTo(x - r, y);
-ctx.lineTo(x + r, y);
-ctx.moveTo(x, y - r);
-ctx.lineTo(x, y + r);
-ctx.stroke();
-ctx.restore();
-return;
-} else {
-ctx.arc(x, y, r, 0, Math.PI * 2);
-}
-ctx.fill();
-if (ctx.lineWidth > 0) ctx.stroke();
-ctx.restore();
-},
-_drawArrowLine(ctx, x0, y0, x1, y1, style) {
-if (![x0, y0, x1, y1].every(Number.isFinite)) return;
-const geom = xyArrowGeometry(x0, y0, x1, y1, style);
-ctx.save();
-ctx.globalAlpha = this._styleNumber(style, "opacity", 1);
-ctx.strokeStyle = this._annotationPaint(style, [0.4, 0.44, 0.52, 1]);
-ctx.fillStyle = ctx.strokeStyle;
-ctx.lineWidth = Math.max(0.5, this._styleNumber(style, "width", 1.5));
-ctx.setLineDash(Array.isArray(style.dash) ? style.dash :
-(typeof style.dash === "string" ? style.dash.split(",").map(Number) : []));
-const w0 = Number(style.shaft_width_start);
-const w1 = Number(style.shaft_width_end);
-const headStyle = style.head_style || "triangle";
-const head = Math.max(4, this._styleNumber(style, "head_size", 8));
-if (Number.isFinite(w0) || Number.isFinite(w1)) {
-let points = xyArrowShaftPoints(geom);
-if (headStyle === "triangle") {
-points = xyTrimPolylineEnd(points, head * Math.cos(Math.PI / 6));
-}
-const polygon = xyTaperPolygon(
-points,
-Number.isFinite(w0) ? w0 : 1,
-Number.isFinite(w1) ? w1 : 1
-);
-ctx.beginPath();
-ctx.moveTo(polygon[0][0], polygon[0][1]);
-for (let i = 1; i < polygon.length; i++) ctx.lineTo(polygon[i][0], polygon[i][1]);
-ctx.closePath();
-ctx.fill();
-} else {
-ctx.beginPath();
-ctx.moveTo(geom.p0[0], geom.p0[1]);
-if (geom.control) ctx.quadraticCurveTo(geom.control[0], geom.control[1], geom.p1[0], geom.p1[1]);
-else ctx.lineTo(geom.p1[0], geom.p1[1]);
-ctx.stroke();
-}
-this._drawArrowEnd(ctx, geom.p1, geom.dir1, headStyle, head);
-this._drawArrowEnd(ctx, geom.p0, geom.dir0, style.tail_style || "none", head);
-ctx.restore();
-},
-_drawArrowEnd(ctx, point, dir, endStyle, head) {
-if (endStyle === "none") return;
-const [px, py] = point;
-const angle = Math.atan2(dir[1], dir[0]);
-ctx.beginPath();
-if (endStyle === "bar") {
-ctx.moveTo(px - (head / 2) * Math.sin(angle), py + (head / 2) * Math.cos(angle));
-ctx.lineTo(px + (head / 2) * Math.sin(angle), py - (head / 2) * Math.cos(angle));
-ctx.stroke();
-return;
-}
-const wing = (side) => [
-px - head * Math.cos(angle - side * Math.PI / 6),
-py - head * Math.sin(angle - side * Math.PI / 6),
-];
-const [ax, ay] = wing(1);
-const [bx, by] = wing(-1);
-if (endStyle === "v") {
-ctx.moveTo(ax, ay);
-ctx.lineTo(px, py);
-ctx.lineTo(bx, by);
-ctx.stroke();
-return;
-}
-ctx.moveTo(px, py);
-ctx.lineTo(ax, ay);
-ctx.lineTo(bx, by);
-ctx.closePath();
-ctx.fill();
-},
-_drawAnnotationShapes(ctx) {
-const annotations = Array.isArray(this.spec.annotations) ? this.spec.annotations : [];
-if (!annotations.length) return;
-const p = this.plot;
-ctx.save();
-ctx.beginPath();
-ctx.rect(p.x, p.y, p.w, p.h);
-ctx.clip();
-for (const ann of annotations) {
-const style = ann && typeof ann.style === "object" ? ann.style : {};
-if (ann.kind === "band") {
-const vertical = ann.axis === "x";
-const a = vertical ? this._dataPxX(Number(ann.start)) : this._dataPxY(Number(ann.start));
-const b = vertical ? this._dataPxX(Number(ann.end)) : this._dataPxY(Number(ann.end));
-if (!Number.isFinite(a) || !Number.isFinite(b)) continue;
-const lo = Math.max(vertical ? p.x : p.y, Math.min(a, b));
-const hi = Math.min(vertical ? p.x + p.w : p.y + p.h, Math.max(a, b));
-if (hi <= lo) continue;
-ctx.save();
-ctx.globalAlpha = this._styleNumber(style, "opacity", 0.14);
-ctx.fillStyle = this._annotationPaint(style, [0.39, 0.45, 0.55, 1]);
-const start = Math.max(0, Math.min(1, Number(style.span_start) || 0));
-const rawEnd = style.span_end === undefined ? 1 : Number(style.span_end);
-const end = Math.max(start, Math.min(1, Number.isFinite(rawEnd) ? rawEnd : 1));
-if (vertical) ctx.fillRect(lo, p.y + (1 - end) * p.h, hi - lo, (end - start) * p.h);
-else ctx.fillRect(p.x + start * p.w, lo, (end - start) * p.w, hi - lo);
-ctx.restore();
-} else if (ann.kind === "rule") {
-const vertical = ann.axis === "x";
-const pos = vertical ? this._dataPxX(Number(ann.value)) : this._dataPxY(Number(ann.value));
-if (!Number.isFinite(pos)) continue;
-if (vertical && (pos < p.x - 1 || pos > p.x + p.w + 1)) continue;
-if (!vertical && (pos < p.y - 1 || pos > p.y + p.h + 1)) continue;
-const crisp = Math.round(pos) + 0.5;
-ctx.save();
-ctx.globalAlpha = this._styleNumber(style, "opacity", 1);
-ctx.strokeStyle = this._annotationPaint(style, [0.4, 0.44, 0.52, 1]);
-ctx.lineWidth = Math.max(0.5, this._styleNumber(style, "width", 1.5));
-ctx.setLineDash(Array.isArray(style.dash) ? style.dash :
-(typeof style.dash === "string" ? style.dash.split(",").map(Number) : []));
-ctx.beginPath();
-const start = Math.max(0, Math.min(1, Number(style.span_start) || 0));
-const rawEnd = style.span_end === undefined ? 1 : Number(style.span_end);
-const end = Math.max(start, Math.min(1, Number.isFinite(rawEnd) ? rawEnd : 1));
-if (vertical) {
-ctx.moveTo(crisp, p.y + (1 - end) * p.h);
-ctx.lineTo(crisp, p.y + (1 - start) * p.h);
-} else {
-ctx.moveTo(p.x + start * p.w, crisp);
-ctx.lineTo(p.x + end * p.w, crisp);
-}
-ctx.stroke();
-ctx.restore();
-} else if (ann.kind === "arrow") {
-this._drawArrowLine(
-ctx,
-this._dataPxX(Number(ann.x0)),
-this._dataPxY(Number(ann.y0)),
-this._dataPxX(Number(ann.x1)),
-this._dataPxY(Number(ann.y1)),
-style
-);
-} else if (ann.kind === "callout") {
-const px = this._dataPxX(Number(ann.x));
-const py = this._dataPxY(Number(ann.y));
-const dx = Number.isFinite(Number(ann.dx)) ? Number(ann.dx) : 0;
-const dy = Number.isFinite(Number(ann.dy)) ? Number(ann.dy) : 0;
-this._drawArrowLine(ctx, px + dx, py + dy, px, py, style);
-} else if (ann.kind === "marker") {
-this._drawAnnotationMarker(
-ctx,
-this._dataPxX(Number(ann.x)),
-this._dataPxY(Number(ann.y)),
-style,
-ann
-);
-}
-}
-ctx.restore();
-},
-_drawAnnotationLabels(updateLabels) {
-if (!updateLabels) return;
-const annotations = Array.isArray(this.spec.annotations) ? this.spec.annotations : [];
-if (!annotations.length) return;
-const p = this.plot;
-for (const ann of annotations) {
-const text = typeof ann.text === "string" ? ann.text : "";
-if (!text) continue;
-const style = ann && typeof ann.style === "object" ? ann.style : {};
-let px = null;
-let py = null;
-let lift = null;
-if (ann.kind === "text") {
-if (style.coordinate_space === "axes_fraction") {
-px = p.x + Number(ann.x) * p.w;
-py = p.y + (1 - Number(ann.y)) * p.h;
-} else if (style.coordinate_space === "figure_fraction") {
-px = Number(ann.x) * this.size.w;
-py = (1 - Number(ann.y)) * this.size.h;
-} else if (style.coordinate_space === "yaxis_transform") {
-px = p.x + Number(ann.x) * p.w;
-py = this._dataPxY(Number(ann.y));
-} else if (style.coordinate_space === "xaxis_transform") {
-px = this._dataPxX(Number(ann.x));
-py = p.y + (1 - Number(ann.y)) * p.h;
-} else {
-px = this._dataPxX(Number(ann.x));
-py = this._dataPxY(Number(ann.y));
-}
-} else if (ann.kind === "rule") {
-if (ann.axis === "x") {
-px = this._dataPxX(Number(ann.value));
-py = p.y + 6;
-} else {
-px = p.x + p.w - 6;
-py = this._dataPxY(Number(ann.value));
-}
-} else if (ann.kind === "band") {
-if (ann.axis === "x") {
-px = (this._dataPxX(Number(ann.start)) + this._dataPxX(Number(ann.end))) / 2;
-py = p.y + 6;
-} else {
-px = p.x + p.w - 6;
-py = (this._dataPxY(Number(ann.start)) + this._dataPxY(Number(ann.end))) / 2;
-}
-} else if (ann.kind === "arrow") {
-const ax0 = this._dataPxX(Number(ann.x0));
-const ay0 = this._dataPxY(Number(ann.y0));
-const ax1 = this._dataPxX(Number(ann.x1));
-const ay1 = this._dataPxY(Number(ann.y1));
-px = (ax0 + ax1) / 2;
-py = (ay0 + ay1) / 2;
-const len = Math.hypot(ax1 - ax0, ay1 - ay0);
-if (len > 1e-6) {
-lift = [-(ay1 - ay0) / len, (ax1 - ax0) / len];
-if (lift[1] > 0) lift = [-lift[0], -lift[1]];
-}
-} else if (ann.kind === "callout") {
-px = this._dataPxX(Number(ann.x));
-py = this._dataPxY(Number(ann.y));
-} else if (ann.kind === "marker") {
-px = this._dataPxX(Number(ann.x));
-py = this._dataPxY(Number(ann.y));
-}
-if (!Number.isFinite(px) || !Number.isFinite(py)) continue;
-if (px < p.x - 24 || px > p.x + p.w + 24 || py < p.y - 24 || py > p.y + p.h + 24) {
-continue;
-}
-const d = document.createElement("div");
-d.textContent = text;
-const dx = Number.isFinite(Number(ann.dx)) ? Number(ann.dx) : 0;
-const dy = Number.isFinite(Number(ann.dy)) ? Number(ann.dy) : 0;
-let anchorName = ann.anchor;
-let va = String(style.vertical_align || "");
-if (ann.kind === "rule" || ann.kind === "band") {
-if (ann.axis === "x") {
-if (!anchorName && ann.kind === "band") anchorName = "middle";
-if (!va) va = "top";
-} else {
-if (!anchorName) anchorName = "end";
-if (!va && ann.kind === "band") va = "middle";
-}
-} else if (ann.kind === "arrow") {
-if (!anchorName) anchorName = "middle";
-if (!va) va = "middle";
-}
-const anchor = anchorName === "middle" ? "-50%" : anchorName === "end" ? "-100%" : "0px";
-const rot = Number.isFinite(Number(style.rotation))
-? ((Number(style.rotation) % 360) + 360) % 360
-: 0;
-const vAnchor =
-va === "center" || va === "middle" ? "-50%"
-: va === "bottom" ? "-100%"
-: va === "top" ? "0px"
-: "calc(-100% + 0.35em)";
-let transform = `translate(${anchor},${vAnchor})`;
-if (rot === 90 || rot === 270) {
-const cw = rot === 270;
-const along =
-va === "center" || va === "middle" ? "-50%"
-: va === "top" ? (cw ? "0" : "-100%")
-: va === "bottom" ? (cw ? "-100%" : "0")
-: cw ? "0" : "-100%";
-const cross =
-anchorName === "middle" ? "-50%" : anchorName === "end" ? (cw ? "0" : "-100%") : cw ? "-100%" : "0";
-transform = `rotate(${cw ? 90 : -90}deg) translate(${along},${cross})`;
-} else if (rot) {
-transform = `rotate(${-rot}deg) translate(${anchor},${vAnchor})`;
-}
-d.style.cssText =
-`position:absolute;left:${px + dx}px;top:${py + dy}px;` +
-`transform:${transform};transform-origin:0 0;pointer-events:none;` +
-`white-space:pre-line;text-align:center;width:max-content;`;
-this._applySlot(d, "annotation_label");
-this._applyClass(d, ann.class_name);
-const opacityIsShape = ann.kind !== "text" && ann.kind !== "callout";
-const labelStyle = {};
-for (const [key, value] of Object.entries(style)) {
-if (key === "opacity" && ann.kind === "text") {
-labelStyle[key] = value;
-continue;
-}
-if (XY_ANNOTATION_SHAPE_STYLE_KEYS.has(key)) continue;
-if (opacityIsShape && key === "opacity") continue;
-labelStyle[key] = value;
-}
-this._applyStyle(d, labelStyle);
-if (style && (style.label_color || style.color)) {
-d.style.color = this._annotationLabelPaint(style, this.theme.label);
-}
-if (style && style.label_opacity !== undefined) {
-const labelOpacity = Number(style.label_opacity);
-if (Number.isFinite(labelOpacity)) {
-d.style.opacity = String(Math.max(0, Math.min(1, labelOpacity)));
-}
-}
-this.labels.appendChild(d);
-const cs = getComputedStyle(d);
-const edge = (pad, border) => (parseFloat(pad) || 0) + (parseFloat(border) || 0);
-const padL = edge(cs.paddingLeft, cs.borderLeftWidth);
-const padR = edge(cs.paddingRight, cs.borderRightWidth);
-const padT = edge(cs.paddingTop, cs.borderTopWidth);
-const padB = edge(cs.paddingBottom, cs.borderBottomWidth);
-if ((padL || padR || padT || padB) && rot !== 90 && rot !== 270) {
-const hShift = anchor === "-100%" ? padR : anchor === "-50%" ? 0 : -padL;
-const vShift =
-vAnchor === "-50%" ? 0 : vAnchor === "0px" ? -padT : padB;
-d.style.transform =
-`${rot ? `rotate(${-rot}deg) ` : ""}` +
-`translate(calc(${anchor} + ${hShift}px), calc(${vAnchor} + ${vShift}px))`;
-}
-const liftBounds = lift && this.labels.getBoundingClientRect();
-if (lift && liftBounds.width > 0) {
-const liftScale = liftBounds.width / this.size.w;
-const r = d.getBoundingClientRect();
-const clear =
-(r.width / liftScale / 2) * Math.abs(lift[0]) +
-(r.height / liftScale / 2) * Math.abs(lift[1]) + 3;
-px += lift[0] * clear;
-py += lift[1] * clear;
-d.style.left = `${px + dx}px`;
-d.style.top = `${py + dy}px`;
-}
-const bounds = this.labels.getBoundingClientRect();
-if (bounds.width > 0) {
-const scale = bounds.width / this.size.w;
-const r = d.getBoundingClientRect();
-const pullX =
-r.right > bounds.right ? bounds.right - r.right
-: r.left < bounds.left ? bounds.left - r.left : 0;
-const pullY =
-r.bottom > bounds.bottom ? bounds.bottom - r.bottom
-: r.top < bounds.top ? bounds.top - r.top : 0;
-if (pullX) d.style.left = `${px + dx + pullX / scale}px`;
-if (pullY) d.style.top = `${py + dy + pullY / scale}px`;
-}
-}
-},
-});
-Object.assign(ChartView.prototype, {
-_showTooltip(hit, clientX, clientY) {
-const row = this._localRow(hit);
-this._lastRow = row;
-this._setTooltipAnchor(hit, row, clientX, clientY);
-this._renderTooltip(row, clientX, clientY);
-if (this._interactionFlag("hover")) {
-this._dispatchChartEvent("hover", {
-row,
-trace: hit.trace,
-index: hit.index,
-view: this._eventView("hover"),
-...this._hoverPayload(row, hit, clientX, clientY),
-});
-}
-if (this.comm) {
-this._pickSeq = (this._pickSeq || 0) + 1;
-const req = { type: "pick", seq: this._pickSeq, trace: hit.trace, index: hit.index };
-const hg = hit.g;
-if (hg && hg.tier === "density" && hg.drill && hg.drill.seq !== undefined) {
-req.drill_seq = hg.drill.seq;
-}
-this.comm.send(req);
-}
-},
-_localRow(hit) {
-const g = hit.g;
-const cpu = g._cpu;
-const row = { trace: g.trace.id, index: hit.index };
-if (hit.heatmap && g.heatmap && g._cpuHeatmap) {
-const h = g.heatmap;
-const { row: heatRow, col } = hit.heatmap;
-const rawX = h.xRange[0] + (col + 0.5) * ((h.xRange[1] - h.xRange[0]) / h.w);
-const rawY = h.yRange[0] + (heatRow + 0.5) * ((h.yRange[1] - h.yRange[0]) / h.h);
-const [x, xKind] = this._sourceDisplayValue(g, "x", rawX, "float");
-const [y, yKind] = this._sourceDisplayValue(g, "y", rawY, "float");
-row.x = x;
-row.y = y;
-if (xKind !== undefined) row.x_kind = xKind;
-if (yKind !== undefined) row.y_kind = yKind;
-const norm = g._cpuHeatmap.grid[hit.index];
-row.color_value = this._denormalizeUnit(norm, g.trace.color && g.trace.color.domain);
-} else if (g._cpuRect) {
-const r = g._cpuRect;
-const x0 = this._decodeValue(r.x0, r.x0Meta, hit.index);
-const x1 = this._decodeValue(r.x1, r.x1Meta, hit.index);
-const y0 = this._decodeValue(r.y0, r.y0Meta, hit.index);
-const y1 = this._decodeValue(r.y1, r.y1Meta, hit.index);
-const [x, xKind] = this._sourceDisplayValue(
-g, "x", x0 + (x1 - x0) / 2, r.x0Meta.kind,
-);
-const [y, yKind] = this._sourceDisplayValue(g, "y", y1, r.y1Meta.kind);
-row.x = x;
-row.y = y;
-if (xKind !== undefined) row.x_kind = xKind;
-if (yKind !== undefined) row.y_kind = yKind;
-} else if (cpu) {
-const xMeta = cpu.xMeta || g.xMeta;
-const yMeta = cpu.yMeta || g.yMeta;
-const rawX = this._decodeValue(cpu.x, xMeta, hit.index);
-const rawY = this._decodeValue(cpu.y, yMeta, hit.index);
-const [x, xKind] = this._sourceDisplayValue(g, "x", rawX, xMeta && xMeta.kind);
-const [y, yKind] = this._sourceDisplayValue(g, "y", rawY, yMeta && yMeta.kind);
-row.x = x;
-row.y = y;
-if (xKind !== undefined) row.x_kind = xKind;
-if (yKind !== undefined) row.y_kind = yKind;
-const color = g.trace.color;
-if (cpu.color && color) {
-if (color.mode === "categorical" && Array.isArray(color.categories)) {
-const code = Math.round(cpu.color[hit.index]);
-if (code >= 0 && code < color.categories.length) {
-row.color_category = String(color.categories[code]);
-}
-} else if (color.mode === "continuous") {
-row.color_value = this._denormalizeUnit(cpu.color[hit.index], color.domain);
-}
-}
-const size = g.trace.size;
-if (cpu.size && size && size.mode === "continuous") {
-row.size_value = this._denormalizeUnit(cpu.size[hit.index], size.domain);
-}
-}
-this._applySharedTooltipFields(row);
-return row;
-},
-_sourceDisplayValue(g, channel, value, kind) {
-const axis = channel === "x" ? this._axis(g && g.xAxis) : this._axis(g && g.yAxis);
-if (channel === "x" && axis.kind === "category") {
-return [fmtCategory(value, axis.categories || []), undefined];
-}
-if (channel === "y" && axis.kind === "category") {
-return [fmtCategory(value, axis.categories || []), undefined];
-}
-return [value, kind];
-},
-_sourceValue(g, source, index) {
-if (!g || index < 0) return [undefined, undefined];
-const channel = source.channel;
-if (channel === "x" || channel === "y") {
-const cpu = g._cpu;
-if (!cpu || !cpu[channel]) return [undefined, undefined];
-const meta = channel === "x" ? (cpu.xMeta || g.xMeta) : (cpu.yMeta || g.yMeta);
-const value = this._decodeValue(cpu[channel], meta, index);
-if (!Number.isFinite(value)) return [undefined, undefined];
-return this._sourceDisplayValue(g, channel, value, meta && meta.kind);
-}
-if (channel === "color_value") {
-if (g._cpuHeatmap && g._cpuHeatmap.grid && g.trace.color) {
-return [this._denormalizeUnit(g._cpuHeatmap.grid[index], g.trace.color.domain), undefined];
-}
-if (g._cpu && g._cpu.color && g.trace.color) {
-return [this._denormalizeUnit(g._cpu.color[index], g.trace.color.domain), undefined];
-}
-}
-if (channel === "color_category" && g._cpu && g._cpu.color && g.trace.color) {
-const code = Math.round(g._cpu.color[index]);
-const categories = g.trace.color.categories || [];
-if (code >= 0 && code < categories.length) return [String(categories[code]), undefined];
-}
-if (channel === "size_value" && g._cpu && g._cpu.size && g.trace.size) {
-return [this._denormalizeUnit(g._cpu.size[index], g.trace.size.domain), undefined];
-}
-return [undefined, undefined];
-},
-_applySharedTooltipFields(row) {
-const sources = this.spec.tooltip && this.spec.tooltip.sources;
-if (!sources || typeof sources !== "object" || row.x === undefined) return;
-for (const [field, entries] of Object.entries(sources)) {
-if (!Array.isArray(entries) || row[field] !== undefined) continue;
-const source = entries.find((entry) => entry.trace === row.trace) || entries[0];
-if (!source || !Number.isFinite(Number(source.trace))) continue;
-const g = this.gpuTraces.find((trace) => trace.trace.id === source.trace);
-if (!g) continue;
-let idx = Number.isInteger(row.index) && source.trace === row.trace ? row.index : -1;
-if (
-!g._cpuHeatmap &&
-(idx < 0 || !g._cpu || !g._cpu.x || idx >= g._cpu.x.length)
-) {
-idx = this._nearestCpuIndex(g, row.x);
-}
-const [value, kind] = this._sourceValue(g, source, idx);
-if (value === undefined) continue;
-row[field] = value;
-if (kind !== undefined) row[`${field}_kind`] = kind;
-}
-},
-_denormalizeUnit(value, domain) {
-const v = Number(value);
-if (!Number.isFinite(v)) return v;
-if (!Array.isArray(domain) || domain.length < 2) return v;
-const lo = Number(domain[0]);
-const hi = Number(domain[1]);
-if (!Number.isFinite(lo) || !Number.isFinite(hi)) return v;
-return lo + v * (hi - lo);
-},
-_defaultTooltipLines(row) {
-const lines = [];
-if (row.x !== undefined) lines.push(`x: ${fmtValue(row.x, row.x_kind)}`);
-if (row.y !== undefined) lines.push(`y: ${fmtValue(row.y, row.y_kind)}`);
-if (row.color_value !== undefined) lines.push(`color: ${fmtValue(row.color_value)}`);
-if (row.color_category !== undefined) lines.push(`${row.color_category}`);
-if (row.size_value !== undefined) lines.push(`size: ${fmtValue(row.size_value)}`);
-if (!lines.length) lines.push(`#${row.index}`);
-return lines;
-},
-_tooltipLookup(row, field) {
-const aliases = (this.spec.tooltip && this.spec.tooltip.aliases) || {};
-const key = row[field] !== undefined ? field : aliases[field];
-if (!key || row[key] === undefined) return [undefined, undefined];
-return [row[key], row[`${key}_kind`]];
-},
-_formatTooltipValue(value, kind, format) {
-const formatted = fmtNumberSpec(value, format);
-if (formatted !== null) return formatted;
-return fmtValue(value, kind);
-},
-_tooltipLines(row) {
-const tooltip = this.spec.tooltip || {};
-if (!tooltip.title && !Array.isArray(tooltip.fields)) return this._defaultTooltipLines(row);
-const formats = tooltip.format || {};
-const lines = [];
-if (typeof tooltip.title === "string") {
-const title = tooltip.title.replace(/\{([^}]+)\}/g, (_, field) => {
-const [value, kind] = this._tooltipLookup(row, field);
-return value === undefined ? "" : this._formatTooltipValue(value, kind, formats[field]);
-});
-if (title) lines.push(title);
-}
-if (Array.isArray(tooltip.fields)) {
-for (const field of tooltip.fields) {
-if (typeof field !== "string") continue;
-const [value, kind] = this._tooltipLookup(row, field);
-if (value === undefined) continue;
-lines.push(`${field}: ${this._formatTooltipValue(value, kind, formats[field])}`);
-}
-}
-return lines.length ? lines : this._defaultTooltipLines(row);
-},
-_setTooltipAnchor(hit, row, clientX, clientY) {
-const g = hit.g;
-if (!g) { this._tooltipAnchor = null; return; }
-const xAxis = g.xAxis || "x";
-const yAxis = g.yAxis || "y";
-let x = row.x;
-let y = row.y;
-if (!Number.isFinite(x) || !Number.isFinite(y)) {
-const rect = this.canvas.getBoundingClientRect();
-[x, y] = this._dataFromCanvas(clientX - rect.left, clientY - rect.top, xAxis, yAxis);
-}
-this._tooltipAnchor = Number.isFinite(x) && Number.isFinite(y)
-? { xAxis, yAxis, x, y }
-: null;
-if (this._tooltipAnchor && !this._tooltipAnchorPx()) this._tooltipAnchor = null;
-},
-_tooltipAnchorPx() {
-const a = this._tooltipAnchor;
-if (!a) return null;
-const lx = this._dataPx(a.xAxis, a.x);
-const ly = this._dataPx(a.yAxis, a.y);
-const p = this.plot;
-if (!Number.isFinite(lx) || !Number.isFinite(ly)
-|| lx < p.x || lx > p.x + p.w || ly < p.y || ly > p.y + p.h) {
-return null;
-}
-return { lx, ly };
-},
-_hideTooltip() {
-this.tooltip.style.display = "none";
-this._tooltipAnchor = null;
-},
-_repositionTooltip() {
-if (!this._tooltipAnchor) return;
-const pos = this._tooltipAnchorPx();
-if (!pos) {
-this.tooltip.style.display = "none";
-return;
-}
-this.tooltip.style.display = "block";
-this._placeTooltip(pos.lx, pos.ly);
-},
-_placeTooltip(lx, ly) {
-const tw = this.tooltip.offsetWidth;
-const th = this.tooltip.offsetHeight;
-const edge = 4;
-const gap = 12;
-const maxLeft = Math.max(edge, this.size.w - tw - edge);
-const left = Math.max(edge, Math.min(lx + gap, maxLeft));
-const below = ly + gap;
-const above = ly - th - gap;
-const top = below + th <= this.size.h - edge ? below : Math.max(edge, above);
-this.tooltip.style.left = left + "px";
-this.tooltip.style.top = top + "px";
-},
-_renderTooltip(row, clientX, clientY, options = {}) {
-if (!row || this.spec.show_tooltip === false) {
-this._hideTooltip();
-return;
-}
-const lines = this._tooltipLines(row);
-if (!this._customTooltip) {
-this.tooltip.textContent = "";
-lines.forEach((ln, i) => {
-if (i) this.tooltip.appendChild(document.createElement("br"));
-this.tooltip.appendChild(document.createTextNode(ln));
-});
-}
-if (this.a11yLive && options.announce !== false) {
-const prefix = this._a11yKeyboardReadout;
-const detail = lines.join(", ");
-const announcement = prefix
-? `Point ${prefix.flat + 1} of ${prefix.total}. ${detail}`
-: detail;
-if (this.a11yLive.textContent !== announcement) this.a11yLive.textContent = announcement;
-}
-this.tooltip.style.display = "block";
-const pos = this._tooltipAnchorPx();
-if (pos) {
-this._placeTooltip(pos.lx, pos.ly);
-} else if (this._tooltipAnchor) {
-this.tooltip.style.display = "none";
-} else {
-const rect = this.root.getBoundingClientRect();
-this._placeTooltip(clientX - rect.left, clientY - rect.top);
-}
-},
-});
-Object.assign(ChartView.prototype, {
-_initInteraction() {
-const c = this.canvas;
-let drag = null;
-let band = null;
-this.selRect = document.createElement("div");
-this.selRect.style.cssText = "position:absolute;display:none;pointer-events:none;z-index:4;";
-this._applySlot(this.selRect, "selection");
-this.root.appendChild(this.selRect);
-this.selLasso = document.createElementNS("http://www.w3.org/2000/svg", "svg");
-this.selLasso.style.cssText =
-"position:absolute;display:none;pointer-events:none;z-index:4;overflow:visible;";
-this.selLasso.dataset.xySelectionLassoOverlay = "";
-this.selLassoPath = document.createElementNS("http://www.w3.org/2000/svg", "path");
-this.selLassoPath.dataset.xySelectionLasso = "";
-this.selLasso.appendChild(this.selLassoPath);
-this.selLassoHandles = document.createElementNS("http://www.w3.org/2000/svg", "g");
-this.selLassoHandles.dataset.xySelectionLassoHandles = "";
-this.selLasso.appendChild(this.selLassoHandles);
-this.root.appendChild(this.selLasso);
-this._lassoPolygon = null;
-let lassoHandleDrag = null;
-const moveLassoHandle = (e) => {
-if (!lassoHandleDrag || e.pointerId !== lassoHandleDrag.pointerId
-|| !this._lassoPolygon) return;
-const rect = c.getBoundingClientRect();
-const cssX = Math.max(0, Math.min(rect.width, e.clientX - rect.left));
-const cssY = Math.max(0, Math.min(rect.height, e.clientY - rect.top));
-this._lassoPolygon[lassoHandleDrag.index] = this._dataFromCanvas(cssX, cssY);
-this._renderLassoSelection();
-e.preventDefault();
-e.stopPropagation();
-};
-this._listen(this.selLasso, "pointerdown", (e) => {
-const handle = e.target.closest?.("[data-xy-selection-lasso-handle]");
-if (!handle || !this._lassoPolygon) return;
-const index = Number(handle.dataset.xySelectionLassoHandle);
-if (!Number.isInteger(index) || !this._lassoPolygon[index]) return;
-lassoHandleDrag = {
-index,
-pointerId: e.pointerId,
-original: [...this._lassoPolygon[index]],
-handle,
-};
-handle.dataset.xyActive = "";
-this._hideTooltip();
-try { this.selLasso.setPointerCapture(e.pointerId); } catch (_err) {   }
-e.preventDefault();
-e.stopPropagation();
-});
-this._listen(this.selLasso, "pointermove", moveLassoHandle);
-this._listen(this.selLasso, "pointerup", (e) => {
-if (!lassoHandleDrag || e.pointerId !== lassoHandleDrag.pointerId) return;
-moveLassoHandle(e);
-const handle = lassoHandleDrag.handle;
-lassoHandleDrag = null;
-delete handle.dataset.xyActive;
-if (this._lassoPolygon) this._sendSelectPolygon(this._lassoPolygon);
-});
-this._listen(this.selLasso, "pointercancel", (e) => {
-if (!lassoHandleDrag || e.pointerId !== lassoHandleDrag.pointerId) return;
-if (this._lassoPolygon) {
-this._lassoPolygon[lassoHandleDrag.index] = lassoHandleDrag.original;
-}
-delete lassoHandleDrag.handle.dataset.xyActive;
-lassoHandleDrag = null;
-if (this._lassoPolygon) this._renderLassoSelection();
-e.stopPropagation();
-});
-if (this._interactionFlag("crosshair")) {
-this.crosshairX = document.createElement("div");
-this.crosshairX.style.cssText =
-"position:absolute;display:none;pointer-events:none;z-index:3;width:1px;";
-this._applySlot(this.crosshairX, "crosshair_x");
-this.root.appendChild(this.crosshairX);
-this.crosshairY = document.createElement("div");
-this.crosshairY.style.cssText =
-"position:absolute;display:none;pointer-events:none;z-index:3;height:1px;";
-this._applySlot(this.crosshairY, "crosshair_y");
-this.root.appendChild(this.crosshairY);
-}
-const dataAt = (clientX, clientY) => {
-const r = c.getBoundingClientRect();
-return this._dataFromCanvas(clientX - r.left, clientY - r.top);
-};
-const lassoPointAt = (clientX, clientY) => {
-const r = c.getBoundingClientRect();
-const cssX = Math.max(0, Math.min(r.width, clientX - r.left));
-const cssY = Math.max(0, Math.min(r.height, clientY - r.top));
-return {
-x: r.left + cssX,
-y: r.top + cssY,
-data: this._dataFromCanvas(cssX, cssY),
-};
-};
-this._listen(c, "pointerdown", (e) => {
-this._cancelViewAnimation();
-const canPan = this._interactionFlag("pan", true);
-const canZoom = this._interactionFlag("zoom", true);
-const canNavigate = this._interactionFlag("navigation", true);
-const canBoxZoom = this._interactionFlag("box_zoom", true);
-const canBrush = this._interactionFlag("brush", true) && this._interactionFlag("select", true);
-const selectMode = this.dragMode.startsWith("select") ? this.dragMode : null;
-const mode = (e.shiftKey || selectMode) && canBrush && this._pickable
-? (e.shiftKey ? "select" : selectMode)
-: this.dragMode === "zoom" && canNavigate && canZoom && canBoxZoom ? "zoom" : null;
-if (mode) {
-const previousLasso = mode.startsWith("select") && this._lassoPolygon
-? this._lassoPolygon.map((point) => [...point])
-: null;
-if (mode.startsWith("select")) this._clearLassoOverlay();
-const firstLassoPoint = mode === "select-lasso" ? lassoPointAt(e.clientX, e.clientY) : null;
-const d0 = firstLassoPoint ? firstLassoPoint.data : dataAt(e.clientX, e.clientY);
-band = {
-mode, sx: e.clientX, sy: e.clientY, d0,
-points: firstLassoPoint ? [firstLassoPoint] : null,
-previousLasso,
-};
-try { c.setPointerCapture(e.pointerId); } catch (_err) {   }
-this._hideTooltip();
-return;
-}
-if (this.dragMode === "pan" && canNavigate && canPan) {
-drag = {
-px: e.clientX,
-py: e.clientY,
-view: this._copyView(this.view),
-moved: false,
-interactionId: ++this._interactionSeq,
-axes: [...new Set([
-...this._axisPolicy("pan_axes"),
-...this._axisIds().filter((axisId) => this._axisContained(axisId)),
-])],
-changedAxes: [],
-};
-try { c.setPointerCapture(e.pointerId); } catch (_err) {   }
-this._hideTooltip();
-}
-});
-this._listen(c, "pointermove", (e) => {
-if (band) { this._updateBand(band, e); return; }
-if (drag) {
-drag.moved = true;
-const ranges = Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId, drag.view)]])
-);
-for (const axisId of drag.axes) {
-const axis = this._axis(axisId);
-const [lo, hi] = this._axisRange(axisId, drag.view);
-const c0 = this._axisCoord(axis, lo), c1 = this._axisCoord(axis, hi);
-if (![c0, c1].every(Number.isFinite) || c0 === c1) continue;
-const dim = this._axisDim(axisId);
-const pixels = dim === "x" ? this.plot.w : this.plot.h;
-const deltaPx = dim === "x" ? e.clientX - drag.px : e.clientY - drag.py;
-const delta = (deltaPx / pixels) * (c1 - c0);
-const signed = dim === "x" ? -delta : delta;
-ranges[axisId] = [
-this._axisValue(axis, c0 + signed),
-this._axisValue(axis, c1 + signed),
-];
-}
-const changedAxes = this._setView({ ranges }, {
-source: "pan_drag",
-phase: "update",
-interactionId: drag.interactionId,
-});
-drag.changedAxes = [...new Set([...drag.changedAxes, ...changedAxes])];
-return;
-}
-this._updateCrosshair(e);
-this._hover(e);
-});
-const end = (e) => {
-if (band) {
-if (band.mode === "select-lasso") this._updateBand(band, e);
-this.selRect.style.display = "none";
-this.selLasso.style.display = "none";
-const d1 = dataAt(e.clientX, e.clientY);
-const moved = band.mode === "select-lasso"
-? band.points.length >= 3
-: Math.abs(e.clientX - band.sx) > 3 || Math.abs(e.clientY - band.sy) > 3;
-if (moved) {
-if (band.mode === "zoom" && this._interactionFlag("zoom", true)) {
-this._zoomToBox(band.d0, d1, true, {
-source: "box_zoom",
-phase: "end",
-interactionId: ++this._interactionSeq,
-});
-} else if (band.mode === "select-lasso") {
-if (band.points.length >= 3) {
-const editable = this._simplifyLassoPoints(band.points);
-this._sendSelectPolygon(editable.map((point) => point.data));
-} else if (band.previousLasso) {
-this._lassoPolygon = band.previousLasso;
-this._renderLassoSelection();
-}
-} else {
-let d0 = band.d0;
-if (band.mode === "select-x") {
-d0 = [band.d0[0], this.view.y0];
-d1[1] = this.view.y1;
-} else if (band.mode === "select-y") {
-d0 = [this.view.x0, band.d0[1]];
-d1[0] = this.view.x1;
-}
-this._sendSelect(d0, d1);
-}
-this._ignoreNextClick = true;
-} else if (band.previousLasso) {
-this._lassoPolygon = band.previousLasso;
-this._renderLassoSelection();
-}
-band = null;
-return;
-}
-if (drag && drag.moved) {
-this._ignoreNextClick = true;
-if (drag.changedAxes.length) this._emitViewChange("pan_drag", {
-axes: drag.changedAxes,
-phase: "end",
-interactionId: drag.interactionId,
-});
-}
-if (drag && !drag.moved) this._hideTooltip();
-drag = null;
-};
-this._listen(c, "pointerup", end);
-this._listen(c, "pointercancel", () => {
-this.selRect.style.display = "none";
-this.selLasso.style.display = "none";
-if (band?.previousLasso) {
-this._lassoPolygon = band.previousLasso;
-this._renderLassoSelection();
-}
-band = null;
-drag = null;
-});
-this._listen(c, "pointerleave", () => this._pointerHoverExit());
-this._listen(document, "pointerover", (e) => {
-if (!this._lastHoverXY || this._a11yKeyboardReadout) return;
-if (this.root.contains(e.target)) return;
-this._pointerHoverExit();
-});
-this._listen(c, "click", (e) => this._click(e));
-this._listen(c, "wheel", (e) => {
-if (!this._interactionFlag("navigation", true)) return;
-if (!this._interactionFlag("zoom", true)) return;
-if (!this._interactionFlag("wheel_zoom", true)) return;
-e.preventDefault();
-const f = Math.pow(1.0015, e.deltaY);
-const r = c.getBoundingClientRect();
-const fx = (e.clientX - r.left) / r.width;
-const fy = 1 - (e.clientY - r.top) / r.height;
-this._queueWheelZoom(f, fx, fy);
-}, { passive: false });
-this._listen(c, "dblclick", () => {
-if (!this._interactionFlag("navigation", true)) return;
-if (!this._interactionFlag("double_click_reset", true)) return;
-this._resetView(true, "reset");
-});
-this._listen(c, "keydown", (e) => {
-if (e.key === "Escape" && (band || drag)) {
-this.selRect.style.display = "none";
-this.selLasso.style.display = "none";
-band = null;
-drag = null;
-e.preventDefault();
-e.stopImmediatePropagation();
-}
-});
-this._listen(c, "keydown", (e) => this._onA11yKey(e));
-},
-_pointerHoverExit() {
-const hadHover = this._hoverId !== -1;
-this._hoverId = -1;
-this._hoverTarget = null;
-this._lastHoverXY = null;
-this._a11yKeyboardReadout = null;
-this._pickSeq = (this._pickSeq || 0) + 1;
-this._hideTooltip();
-this._hideCrosshair();
-if (this._interactionFlag("hover")) {
-this._dispatchChartEvent("leave", { view: this._eventView("leave"), active: false });
-}
-if (hadHover) this._drawKeepPick();
-},
-_a11yPointGroups() {
-return (this.gpuTraces || []).filter((g) =>
-markOf(g.trace.kind).pointPick && g.tier !== "density" && g._cpu &&
-g._cpu.x && g._cpu.y && Math.min(g._cpu.x.length, g._cpu.y.length) > 0);
-},
-_onA11yKey(e) {
-const direction = { ArrowRight: 1, ArrowDown: 1, ArrowLeft: -1, ArrowUp: -1 }[e.key];
-const activate = e.key === "Enter" || e.key === " ";
-if (direction === undefined && e.key !== "Home" && e.key !== "End" && e.key !== "Escape"
-&& !activate) {
-return;
-}
-if (activate) {
-if (!this._interactionFlag("click") || !this._hoverTarget) return;
-e.preventDefault();
-const hit = this._hoverTarget;
-const rect = this.canvas.getBoundingClientRect();
-const clientX = this._lastHoverXY?.clientX ?? rect.left;
-const clientY = this._lastHoverXY?.clientY ?? rect.top;
-const screen = { x: clientX - rect.left, y: clientY - rect.top };
-const modifiers = {
-shift: e.shiftKey === true,
-alt: e.altKey === true,
-ctrl: e.ctrlKey === true,
-meta: e.metaKey === true,
-};
-const detail = {
-row: this._localRow ? this._localRow(hit) : null,
-trace: hit.trace,
-index: hit.index,
-screen,
-modifiers,
-view: this._eventView("click"),
-};
-this._dispatchChartEvent("click", detail);
-if (this.comm) {
-const msg = { type: "click", trace: hit.trace, index: hit.index, screen, modifiers };
-const g = hit.g;
-if (g && g.tier === "density" && g.drill && g.drill.seq !== undefined) {
-msg.drill_seq = g.drill.seq;
-}
-this.comm.send(msg);
-}
-return;
-}
-if (e.key === "Escape") {
-e.preventDefault();
-const hadHover = this._hoverId !== -1;
-this._hideTooltip();
-this._hoverId = -1;
-this._hoverTarget = null;
-this._lastHoverXY = null;
-this._a11yKeyboardReadout = null;
-this._pickSeq = (this._pickSeq || 0) + 1;
-if (this.a11yLive) this.a11yLive.textContent = "Readout closed.";
-if (hadHover && this._interactionFlag("hover")) {
-this._dispatchChartEvent("leave", { view: this._eventView("leave"), active: false });
-}
-if (hadHover) this._drawKeepPick();
-return;
-}
-e.preventDefault();
-if (this._interactionTransitionActive()) return;
-const groups = this._a11yPointGroups();
-const total = groups.reduce((sum, g) => sum + Math.min(g._cpu.x.length, g._cpu.y.length), 0);
-if (!total) return;
-let flat = Number.isInteger(this._a11yPointIndex) ? this._a11yPointIndex : -1;
-if (e.key === "Home") flat = 0;
-else if (e.key === "End") flat = total - 1;
-else if (flat < 0) flat = direction > 0 ? 0 : total - 1;
-else flat = Math.max(0, Math.min(total - 1, flat + direction));
-this._a11yPointIndex = flat;
-let offset = flat;
-let g = groups[0];
-for (const candidate of groups) {
-const n = Math.min(candidate._cpu.x.length, candidate._cpu.y.length);
-if (offset < n) { g = candidate; break; }
-offset -= n;
-}
-const hit = { trace: g.trace.id, index: offset, g };
-const xValue = this._decodeValue(g._cpu.x, g._cpu.xMeta || g.xMeta, offset);
-const yValue = this._decodeValue(g._cpu.y, g._cpu.yMeta || g.yMeta, offset);
-const x = this._dataPx(g.xAxis || "x", xValue) - this.plot.x;
-const y = this._dataPx(g.yAxis || "y", yValue) - this.plot.y;
-const rect = this.canvas.getBoundingClientRect();
-const clientX = rect.left + Math.max(0, Math.min(rect.width, x));
-const clientY = rect.top + Math.max(0, Math.min(rect.height, y));
-this._hoverId = hit.trace * 1e9 + hit.index;
-this._hoverTarget = hit;
-this._lastHoverXY = { clientX, clientY };
-this._a11yKeyboardReadout = { flat, total };
-this._showTooltip(hit, clientX, clientY);
-this._drawKeepPick();
-},
-_updateCrosshair(e) {
-if (!this.crosshairX || !this.crosshairY) return;
-const rect = this.canvas.getBoundingClientRect();
-const rootRect = this.root.getBoundingClientRect();
-const x = e.clientX - rect.left;
-const y = e.clientY - rect.top;
-if (x < 0 || x > rect.width || y < 0 || y > rect.height) {
-this._hideCrosshair();
-return;
-}
-const left = e.clientX - rootRect.left;
-const top = e.clientY - rootRect.top;
-this.crosshairX.style.display = "block";
-this.crosshairX.style.left = left + "px";
-this.crosshairX.style.top = this.plot.y + "px";
-this.crosshairX.style.height = this.plot.h + "px";
-this.crosshairY.style.display = "block";
-this.crosshairY.style.left = this.plot.x + "px";
-this.crosshairY.style.top = top + "px";
-this.crosshairY.style.width = this.plot.w + "px";
-},
-_hideCrosshair() {
-if (this.crosshairX) this.crosshairX.style.display = "none";
-if (this.crosshairY) this.crosshairY.style.display = "none";
-},
-_click(e) {
-if (this._ignoreNextClick) {
-this._ignoreNextClick = false;
-return;
-}
-if (!this._interactionFlag("click")) return;
-const rect = this.canvas.getBoundingClientRect();
-const cssX = e.clientX - rect.left;
-const cssY = e.clientY - rect.top;
-const [x, y] = this._dataFromCanvas(cssX, cssY);
-const hit = this._pickAt(cssX, cssY) || this._hoverAt(cssX, cssY);
-const detail = {
-x,
-y,
-view: this._eventView("click"),
-row: hit && this._localRow ? this._localRow(hit) : null,
-trace: hit ? hit.trace : null,
-index: hit ? hit.index : null,
-};
-this._dispatchChartEvent("click", detail);
-if (hit && this.comm) {
-const msg = {
-type: "click",
-trace: hit.trace,
-index: hit.index,
-screen: { x: cssX, y: cssY },
-modifiers: {
-shift: e.shiftKey === true,
-alt: e.altKey === true,
-ctrl: e.ctrlKey === true,
-meta: e.metaKey === true,
-},
-};
-const g = hit.g;
-if (g && g.tier === "density" && g.drill && g.drill.seq !== undefined) {
-msg.drill_seq = g.drill.seq;
-}
-this.comm.send(msg);
-}
-},
-_updateBand(band, e) {
-const rect = this.canvas.getBoundingClientRect();
-const rootRect = this.root.getBoundingClientRect();
-if (band.mode === "select-lasso") {
-const previous = band.points[band.points.length - 1];
-const cssX = Math.max(0, Math.min(rect.width, e.clientX - rect.left));
-const cssY = Math.max(0, Math.min(rect.height, e.clientY - rect.top));
-const clientX = rect.left + cssX;
-const clientY = rect.top + cssY;
-if (band.points.length < 2048
-&& Math.hypot(clientX - previous.x, clientY - previous.y) >= 3) {
-band.points.push({ x: clientX, y: clientY, data: this._dataFromCanvas(cssX, cssY) });
-}
-const points = band.points.map((point) => [
-Math.max(this.plot.x, Math.min(this.plot.x + this.plot.w, point.x - rootRect.left)),
-Math.max(this.plot.y, Math.min(this.plot.y + this.plot.h, point.y - rootRect.top)),
-]);
-this.selLasso.style.display = "block";
-this.selLasso.style.inset = "0";
-this.selLasso.setAttribute("width", String(this.root.clientWidth));
-this.selLasso.setAttribute("height", String(this.root.clientHeight));
-this.selLassoPath.setAttribute(
-"d", points.map((point, i) => `${i ? "L" : "M"}${point[0]} ${point[1]}`).join(" ") + " Z"
-);
-return;
-}
-const x = Math.min(band.sx, e.clientX) - rootRect.left;
-const y = Math.min(band.sy, e.clientY) - rootRect.top;
-const w = Math.abs(e.clientX - band.sx);
-const h = Math.abs(e.clientY - band.sy);
-const px = this.plot.x, py = this.plot.y;
-const x2 = Math.min(x + w, px + this.plot.w), y2 = Math.min(y + h, py + this.plot.h);
-let cx = Math.max(x, px), cy = Math.max(y, py);
-let bx2 = x2, by2 = y2;
-if (band.mode === "select-x") { cy = py; by2 = py + this.plot.h; }
-if (band.mode === "select-y") { cx = px; bx2 = px + this.plot.w; }
-this.selRect.dataset.xyBand = band.mode === "zoom" ? "zoom" : "select";
-this.selRect.style.display = "block";
-this.selRect.style.left = cx + "px";
-this.selRect.style.top = cy + "px";
-this.selRect.style.width = Math.max(0, bx2 - cx) + "px";
-this.selRect.style.height = Math.max(0, by2 - cy) + "px";
-void rect;
-},
-_simplifyLassoPoints(points, tolerance = 6, maxPoints = 16) {
-const source = points.filter((point) => point && Number.isFinite(point.x) && Number.isFinite(point.y));
-if (source.length > 3) {
-const first = source[0], last = source[source.length - 1];
-if (Math.hypot(first.x - last.x, first.y - last.y) <= tolerance) source.pop();
-}
-if (source.length <= 3) return source.slice();
-const distanceToSegmentSq = (point, start, end) => {
-const dx = end.x - start.x, dy = end.y - start.y;
-if (dx === 0 && dy === 0) {
-return (point.x - start.x) ** 2 + (point.y - start.y) ** 2;
-}
-const t = Math.max(0, Math.min(1,
-((point.x - start.x) * dx + (point.y - start.y) * dy) / (dx * dx + dy * dy)
-));
-const x = start.x + t * dx, y = start.y + t * dy;
-return (point.x - x) ** 2 + (point.y - y) ** 2;
-};
-const simplifyAt = (currentTolerance) => {
-const keep = new Uint8Array(source.length);
-keep[0] = 1;
-keep[source.length - 1] = 1;
-const stack = [[0, source.length - 1]];
-const toleranceSq = currentTolerance * currentTolerance;
-while (stack.length) {
-const [start, end] = stack.pop();
-let furthest = -1, furthestDistance = toleranceSq;
-for (let i = start + 1; i < end; i++) {
-const distance = distanceToSegmentSq(source[i], source[start], source[end]);
-if (distance > furthestDistance) {
-furthest = i;
-furthestDistance = distance;
-}
-}
-if (furthest >= 0) {
-keep[furthest] = 1;
-stack.push([start, furthest], [furthest, end]);
-}
-}
-return source.filter((_point, index) => keep[index]);
-};
-let simplified = simplifyAt(tolerance);
-if (simplified.length < 3) {
-simplified = [source[0], source[Math.floor(source.length / 2)], source[source.length - 1]];
-}
-if (simplified.length > maxPoints) {
-let low = tolerance;
-let high = Math.max(tolerance, 1);
-for (let i = 0; i < 16 && simplified.length > maxPoints; i++) {
-low = high;
-high *= 2;
-simplified = simplifyAt(high);
-}
-for (let i = 0; i < 12; i++) {
-const middle = (low + high) / 2;
-const candidate = simplifyAt(middle);
-if (candidate.length > maxPoints) low = middle;
-else {
-high = middle;
-simplified = candidate;
-}
-}
-if (simplified.length < 3) {
-simplified = [source[0], source[Math.floor(source.length / 2)], source[source.length - 1]];
-}
-}
-return simplified;
-},
-_clearLassoOverlay() {
-this._lassoPolygon = null;
-if (!this.selLasso) return;
-this.selLasso.style.display = "none";
-this.selLassoPath?.removeAttribute("d");
-this.selLassoHandles?.replaceChildren();
-},
-_renderLassoSelection() {
-const polygon = this._lassoPolygon;
-if (!this.selLasso || !this.selLassoPath || !this.selLassoHandles
-|| !Array.isArray(polygon) || polygon.length < 3) return;
-const [x0, x1] = this._axisRange("x");
-const [y0, y1] = this._axisRange("y");
-const xAxis = this._axis("x"), yAxis = this._axis("y");
-const cx0 = this._axisCoord(xAxis, x0), cx1 = this._axisCoord(xAxis, x1);
-const cy0 = this._axisCoord(yAxis, y0), cy1 = this._axisCoord(yAxis, y1);
-if (![cx0, cx1, cy0, cy1].every(Number.isFinite) || cx0 === cx1 || cy0 === cy1) return;
-const points = polygon.map((point) => {
-const cx = this._axisCoord(xAxis, point[0]);
-const cy = this._axisCoord(yAxis, point[1]);
-const x = this.plot.x + ((cx - cx0) / (cx1 - cx0)) * this.plot.w;
-const y = this.plot.y + ((cy1 - cy) / (cy1 - cy0)) * this.plot.h;
-return [
-Math.max(this.plot.x, Math.min(this.plot.x + this.plot.w, x)),
-Math.max(this.plot.y, Math.min(this.plot.y + this.plot.h, y)),
-];
-});
-if (!points.flat().every(Number.isFinite)) return;
-this.selLasso.style.display = "block";
-this.selLasso.style.inset = "0";
-this.selLasso.setAttribute("width", String(this.root.clientWidth));
-this.selLasso.setAttribute("height", String(this.root.clientHeight));
-this.selLassoPath.setAttribute(
-"d", points.map((point, index) => `${index ? "L" : "M"}${point[0]} ${point[1]}`).join(" ") + " Z"
-);
-while (this.selLassoHandles.childElementCount < points.length) {
-const handle = document.createElementNS("http://www.w3.org/2000/svg", "circle");
-handle.dataset.xySelectionLassoHandle = "";
-handle.setAttribute("r", "4");
-this.selLassoHandles.appendChild(handle);
-}
-while (this.selLassoHandles.childElementCount > points.length) {
-this.selLassoHandles.lastElementChild.remove();
-}
-[...this.selLassoHandles.children].forEach((handle, index) => {
-handle.dataset.xySelectionLassoHandle = String(index);
-handle.setAttribute("cx", String(points[index][0]));
-handle.setAttribute("cy", String(points[index][1]));
-handle.setAttribute("aria-label", `Lasso point ${index + 1}`);
-});
-},
-_sendSelect(d0, d1, opts = {}) {
-this._clearLassoOverlay();
-const x0 = Math.min(d0[0], d1[0]), x1 = Math.max(d0[0], d1[0]);
-const y0 = Math.min(d0[1], d1[1]), y1 = Math.max(d0[1], d1[1]);
-const range = { x0, x1, y0, y1 };
-this._historyRecord({
-source: opts.source,
-interactionId: opts.interactionId,
-history: opts.history,
-});
-this._stateSelection = { range: { ...range } };
-this._lastBrush = { mode: "box", x0, x1, y0, y1 };
-this._broadcastLinkedSelection({ range });
-this._dispatchChartEvent("brush", { range, view: this._eventView("brush") });
-if (this.comm) {
-this.comm.send({ type: "select", x0, x1, y0, y1 });
-} else {
-this._selectLocal(x0, x1, y0, y1);
-}
-},
-_sendSelectPolygon(points, opts = {}) {
-if (!Array.isArray(points) || points.length < 3) return;
-const polygon = points.map((point) => [point[0], point[1]]);
-if (!polygon.every((point) => point.every(Number.isFinite))) return;
-this._historyRecord({
-source: opts.source,
-interactionId: opts.interactionId,
-history: opts.history,
-});
-this._stateSelection = { polygon: polygon.map((point) => [...point]) };
-this._lassoPolygon = polygon;
-this._lastBrush = { mode: "poly", points: polygon };
-this._broadcastLinkedSelection({ polygon });
-this._renderLassoSelection();
-this._dispatchChartEvent("brush", {
-polygon,
-view: this._eventView("brush"),
-});
-if (this.comm) {
-this.comm.send({ type: "select_polygon", points: polygon });
-} else {
-this._selectLocalPolygon(polygon);
-}
-},
-_selectLocalPolygon(points, opts = {}) {
-const xs = points.map((point) => point[0]);
-const ys = points.map((point) => point[1]);
-const minX = Math.min(...xs), maxX = Math.max(...xs);
-const minY = Math.min(...ys), maxY = Math.max(...ys);
-const inside = (x, y) => {
-let hit = false;
-for (let i = 0, j = points.length - 1; i < points.length; j = i++) {
-const [xi, yi] = points[i], [xj, yj] = points[j];
-if ((yi > y) !== (yj > y) && x < ((xj - xi) * (y - yi)) / (yj - yi) + xi) hit = !hit;
-}
-return hit;
-};
-let total = 0;
-for (const g of this.gpuTraces) {
-if (!g._cpu || g.tier === "density") continue;
-const cx = g._cpu.x, cy = g._cpu.y;
-const xMeta = g._cpu.xMeta || g.xMeta;
-const yMeta = g._cpu.yMeta || g.yMeta;
-const ox = xMeta.offset, sx = xMeta.scale || 1;
-const oy = yMeta.offset, sy = yMeta.scale || 1;
-const mask = new Float32Array(g.n);
-let count = 0;
-for (let i = 0; i < g.n; i++) {
-const x = cx[i] / sx + ox;
-const y = cy[i] / sy + oy;
-if (x >= minX && x <= maxX && y >= minY && y <= maxY && inside(x, y)) {
-mask[i] = 1;
-count++;
-}
-}
-this._applySelMask(g, mask);
-total += count;
-}
-this._selectionCount = total;
-this.draw();
-if (opts.dispatch !== false) {
-this._dispatchChartEvent("select", {
-total,
-polygon: points,
-view: this._eventView("select"),
-});
-}
-},
-_selectLocal(x0, x1, y0, y1, opts = {}) {
-let total = 0;
-for (const g of this.gpuTraces) {
-if (!g._cpu || g.tier === "density") continue;
-const cx = g._cpu.x, cy = g._cpu.y;
-const xMeta = g._cpu.xMeta || g.xMeta;
-const yMeta = g._cpu.yMeta || g.yMeta;
-const ox = xMeta.offset, sx = xMeta.scale || 1;
-const oy = yMeta.offset, sy = yMeta.scale || 1;
-const mask = new Float32Array(g.n);
-let cnt = 0;
-for (let i = 0; i < g.n; i++) {
-const dx = cx[i] / sx + ox, dy = cy[i] / sy + oy;
-if (dx >= x0 && dx <= x1 && dy >= y0 && dy <= y1) { mask[i] = 1; cnt++; }
-}
-this._applySelMask(g, mask);
-total += cnt;
-}
-this._selectionCount = total;
-this.draw();
-if (opts.dispatch !== false) {
-this._dispatchChartEvent("select", {
-total,
-range: { x0, x1, y0, y1 },
-view: this._eventView("select"),
-});
-}
-},
-_applySelMask(g, maskF32) {
-const gl = this.gl;
-if (!g.selBuf) g.selBuf = gl.createBuffer();
-gl.bindBuffer(gl.ARRAY_BUFFER, g.selBuf);
-gl.bufferData(gl.ARRAY_BUFFER, maskF32, gl.STATIC_DRAW);
-g.selActive = true;
-},
-_clearSelection(opts = {}) {
-this._clearLassoOverlay();
-if (opts.dispatch !== false && this._stateSelection !== null
-&& this._stateSelection !== undefined) {
-this._historyRecord({
-source: opts.source,
-interactionId: opts.interactionId,
-history: opts.history,
-});
-}
-this._stateSelection = null;
-for (const g of this.gpuTraces) {
-g.selActive = false;
-if (g.drill) g.drill.selActive = false;
-}
-this._selectionCount = 0;
-this._lastBrush = null;
-if (opts.broadcast !== false) this._broadcastLinkedSelection({ clear: true });
-if (opts.dispatch !== false) {
-if (this._interactionFlag("select", true)) {
-if (this.comm) this.comm.send({ type: "select_clear" });
-this._dispatchChartEvent("select", { total: 0, view: this._eventView("select_clear") });
-}
-}
-},
-_clampModebar(left, top) {
-const bar = this._modebar;
-if (!bar || !this.root) return;
-const currentLeft = left ?? (Number.parseFloat(bar.style.left) || 0);
-const currentTop = top ?? (Number.parseFloat(bar.style.top) || 0);
-const maxLeft = Math.max(0, this.root.clientWidth - bar.offsetWidth);
-const maxTop = Math.max(0, this.root.clientHeight - bar.offsetHeight);
-bar.style.left = `${Math.max(0, Math.min(maxLeft, currentLeft))}px`;
-bar.style.top = `${Math.max(0, Math.min(maxTop, currentTop))}px`;
-},
-_buildModebar(root) {
-if (this.spec.show_modebar === false) return;
-const bar = document.createElement("div");
-bar.style.cssText =
-`position:absolute;top:${this.plot.y + 4}px;left:${this.plot.x + 4}px;z-index:6;` +
-"display:flex;opacity:0;pointer-events:none;transition:opacity .15s;";
-this._applySlot(bar, "modebar");
-bar.setAttribute("role", "toolbar");
-bar.setAttribute("aria-label", "Chart controls");
-this._modebar = bar;
-this._modeBtns = {};
-this._modebarMoved = false;
-let setZoomMenuOpen = () => {};
-let setSelectMenuOpen = () => {};
-let setExportMenuOpen = () => {};
-const setVisible = (visible) => {
-const show = visible || this._modebarDragging || bar.contains(document.activeElement);
-bar.style.opacity = show ? "1" : "0";
-bar.style.pointerEvents = show ? "auto" : "none";
-};
-this._listen(root, "pointerenter", () => setVisible(true));
-this._listen(root, "pointerleave", () => {
-setVisible(false);
-setZoomMenuOpen(false);
-setSelectMenuOpen(false);
-setExportMenuOpen(false);
-});
-this._listen(bar, "focusin", () => setVisible(true));
-this._listen(bar, "focusout", (e) => {
-if (!bar.contains(e.relatedTarget) && !root.matches(":hover")) setVisible(false);
-});
-const grip = document.createElement("button");
-grip.type = "button";
-grip.title = "Click for toolbar options; drag to move";
-grip.setAttribute("aria-label", "Toolbar options");
-grip.setAttribute("aria-haspopup", "menu");
-grip.setAttribute("aria-expanded", "false");
-grip.dataset.xyModebarDragHandle = "";
-grip.dataset.xyModebarExport = "";
-grip.dataset.xyModebarExportTrigger = "";
-grip.innerHTML = this._icon("drag");
-grip.style.cssText =
-"display:flex;align-items:center;justify-content:center;pointer-events:auto;touch-action:none;";
-this._applySlot(grip, "modebar_button");
-bar.appendChild(grip);
-const DRAG_THRESHOLD_PX = 6;
-let modebarDrag = null;
-let suppressGripClickUntil = 0;
-this._listen(grip, "pointerdown", (e) => {
-if (e.pointerType === "mouse" && e.button !== 0) return;
-e.stopPropagation();
-const barRect = bar.getBoundingClientRect();
-modebarDrag = {
-pointerId: e.pointerId,
-startX: e.clientX,
-startY: e.clientY,
-dx: e.clientX - barRect.left,
-dy: e.clientY - barRect.top,
-moved: false,
-};
-try { grip.setPointerCapture(e.pointerId); } catch (_err) {   }
-setVisible(true);
-});
-this._listen(grip, "pointermove", (e) => {
-if (!modebarDrag || e.pointerId !== modebarDrag.pointerId) return;
-const distance = Math.hypot(e.clientX - modebarDrag.startX, e.clientY - modebarDrag.startY);
-if (!modebarDrag.moved) {
-if (distance < DRAG_THRESHOLD_PX) return;
-modebarDrag.moved = true;
-this._modebarDragging = true;
-this._modebarMoved = true;
-bar.style.transition = "none";
-setZoomMenuOpen(false);
-setSelectMenuOpen(false);
-setExportMenuOpen(false);
-}
-const rootRect = root.getBoundingClientRect();
-const left = e.clientX - rootRect.left - modebarDrag.dx;
-const top = e.clientY - rootRect.top - modebarDrag.dy;
-this._clampModebar(left, top);
-});
-const endModebarDrag = (e) => {
-if (!modebarDrag || e.pointerId !== modebarDrag.pointerId) return;
-const moved = modebarDrag.moved;
-const cancelled = e.type === "pointercancel";
-modebarDrag = null;
-this._modebarDragging = false;
-bar.style.transition = "opacity .15s";
-setVisible(root.matches(":hover"));
-if (moved || cancelled) {
-suppressGripClickUntil = performance.now() + 100;
-}
-};
-this._listen(grip, "pointerup", endModebarDrag);
-this._listen(grip, "pointercancel", endModebarDrag);
-this._listen(grip, "click", (e) => {
-e.stopPropagation();
-if (performance.now() <= suppressGripClickUntil) {
-suppressGripClickUntil = 0;
-return;
-}
-setExportMenuOpen(!this._exportMenuOpen);
-});
-const mk = (name, title, onClick, toggles) => {
-const b = document.createElement("button");
-b.type = "button";
-b.title = title;
-b.setAttribute("aria-label", title);
-if (toggles) b.setAttribute("aria-pressed", "false");
-b.innerHTML = this._icon(name);
-b.style.cssText =
-"display:flex;align-items:center;justify-content:center;pointer-events:auto;";
-this._applySlot(b, "modebar_button");
-this._listen(b, "pointerdown", (e) => e.stopPropagation());
-this._listen(b, "click", (e) => { e.stopPropagation(); onClick(); });
-bar.appendChild(b);
-if (toggles) this._modeBtns[toggles] = b;
-return b;
-};
-const canNavigate = this._interactionFlag("navigation", true);
-const canPan = canNavigate && this._interactionFlag("pan", true);
-const canZoom = canNavigate && this._interactionFlag("zoom", true);
-const canZoomButtons = canZoom && this._interactionFlag("zoom_buttons", true);
-const canBoxZoom = canZoom && this._interactionFlag("box_zoom", true);
-const canReset = canNavigate && this._resetAxisPolicy().length > 0;
-const hasZoomMenu = canZoomButtons || canBoxZoom || canReset;
-let zoomTrigger = null;
-let zoomIndicator = null;
-this._zoomMenuButton = null;
-this._zoomMenuLabel = null;
-if (hasZoomMenu) {
-zoomTrigger = mk("zoommenu", "Zoom controls", () => {
-setZoomMenuOpen(!this._zoomMenuOpen);
-});
-this._zoomMenuButton = zoomTrigger;
-zoomTrigger.dataset.xyModebarMenuTrigger = "";
-zoomTrigger.replaceChildren();
-const zoomPercent = document.createElement("span");
-zoomPercent.dataset.xyModebarZoomPercent = "";
-zoomPercent.textContent = "100%";
-zoomTrigger.appendChild(zoomPercent);
-zoomIndicator = document.createElement("span");
-zoomIndicator.dataset.xyModebarMenuIndicator = "";
-zoomIndicator.innerHTML = this._icon("chevrondown");
-zoomTrigger.appendChild(zoomIndicator);
-this._zoomMenuLabel = zoomPercent;
-zoomTrigger.setAttribute("aria-haspopup", "menu");
-zoomTrigger.setAttribute("aria-expanded", "false");
-}
-const canSelect = this._interactionFlag("brush", true)
-&& this._interactionFlag("select", true);
-let selectTrigger = null;
-let selectIndicator = null;
-let selectModeIcon = null;
-if (canSelect) {
-selectTrigger = mk("select", "Selection controls", () => {
-setSelectMenuOpen(!this._selectMenuOpen);
-});
-selectTrigger.dataset.xyModebarSelect = "";
-selectTrigger.dataset.xyModebarSelectTrigger = "";
-selectTrigger.setAttribute("aria-haspopup", "menu");
-selectTrigger.setAttribute("aria-expanded", "false");
-selectTrigger.replaceChildren();
-selectModeIcon = document.createElement("span");
-selectModeIcon.dataset.xyModebarSelectIcon = "";
-selectModeIcon.innerHTML = this._icon("select");
-selectTrigger.appendChild(selectModeIcon);
-selectIndicator = document.createElement("span");
-selectIndicator.dataset.xyModebarMenuIndicator = "";
-selectIndicator.innerHTML = this._icon("chevrondown");
-selectTrigger.appendChild(selectIndicator);
-this._selectMenuButton = selectTrigger;
-this._selectMenuIcon = selectModeIcon;
-}
-if (canPan) mk("pan", "Pan", () => this._setDragMode("pan"), "pan");
-if (canNavigate && this._historyEnabled()) {
-this._historyBackBtn = mk("historyback", "Back to previous view",
-() => this._historyBack());
-this._historyBackBtn.dataset.xyModebarHistory = "back";
-this._historyForwardBtn = mk("historyforward", "Forward to next view",
-() => this._historyForward());
-this._historyForwardBtn.dataset.xyModebarHistory = "forward";
-this._updateHistoryButtons();
-}
-let zoomMenu = null;
-if (hasZoomMenu) {
-zoomMenu = document.createElement("div");
-zoomMenu.dataset.xyModebarMenu = "";
-zoomMenu.setAttribute("role", "menu");
-zoomMenu.setAttribute("aria-label", "Zoom controls");
-zoomMenu.style.cssText =
-"position:absolute;display:none;flex-direction:column;z-index:7;pointer-events:auto;";
-bar.appendChild(zoomMenu);
-}
-const zoomMenuItems = [];
-const mkZoomItem = (name, label, onClick, toggles, separator = false) => {
-const button = document.createElement("button");
-button.type = "button";
-button.tabIndex = -1;
-button.dataset.xyModebarMenuItem = name;
-if (separator) button.dataset.xySeparator = "";
-button.setAttribute("role", "menuitem");
-button.style.cssText =
-"display:flex;align-items:center;pointer-events:auto;";
-this._applySlot(button, "modebar_button");
-const icon = document.createElement("span");
-icon.dataset.xyModebarMenuIcon = "";
-icon.innerHTML = this._icon(name);
-button.appendChild(icon);
-const text = document.createElement("span");
-text.textContent = label;
-button.appendChild(text);
-this._listen(button, "pointerdown", (e) => e.stopPropagation());
-this._listen(button, "click", (e) => {
-e.stopPropagation();
-setZoomMenuOpen(false, true);
-onClick();
-});
-zoomMenu.appendChild(button);
-zoomMenuItems.push(button);
-if (toggles) this._modeBtns[toggles] = button;
-return button;
-};
-if (hasZoomMenu) {
-if (canZoomButtons) {
-mkZoomItem("zoomin", this._actionLabel("Zoom In", this._axisPolicy("zoom_axes")),
-() => this._zoomBy(0.5, true, "zoom_in"));
-mkZoomItem("zoomout", this._actionLabel("Zoom Out", this._axisPolicy("zoom_axes")),
-() => this._zoomBy(2, true, "zoom_out"));
-}
-if (canBoxZoom) {
-mkZoomItem("zoom", this._actionLabel("Box Zoom", this._axisPolicy("zoom_axes")),
-() => this._setDragMode("zoom"), "zoom");
-}
-if (canReset) {
-mkZoomItem("reset", this._actionLabel("Reset View", this._resetAxisPolicy()),
-() => this._resetView(true, "reset"), null, canZoomButtons || canBoxZoom);
-}
-}
-const selectMenu = document.createElement("div");
-selectMenu.dataset.xyModebarMenu = "";
-selectMenu.dataset.xyModebarSelectMenu = "";
-selectMenu.setAttribute("role", "menu");
-selectMenu.setAttribute("aria-label", "Selection controls");
-selectMenu.style.cssText =
-"position:absolute;display:none;flex-direction:column;z-index:7;pointer-events:auto;";
-bar.appendChild(selectMenu);
-const selectMenuItems = [];
-const mkSelectItem = (name, label, mode) => {
-const button = document.createElement("button");
-button.type = "button";
-button.tabIndex = -1;
-button.dataset.xyModebarMenuItem = name;
-button.dataset.xyModebarSelectItem = mode;
-button.setAttribute("role", "menuitem");
-button.style.cssText = "display:flex;align-items:center;pointer-events:auto;";
-this._applySlot(button, "modebar_button");
-const icon = document.createElement("span");
-icon.dataset.xyModebarMenuIcon = "";
-icon.innerHTML = this._icon(name);
-button.appendChild(icon);
-const text = document.createElement("span");
-text.textContent = label;
-button.appendChild(text);
-this._listen(button, "pointerdown", (e) => e.stopPropagation());
-this._listen(button, "click", (e) => {
-e.stopPropagation();
-setSelectMenuOpen(false, true);
-this._setDragMode(mode);
-});
-selectMenu.appendChild(button);
-selectMenuItems.push(button);
-this._modeBtns[mode] = button;
-};
-if (canSelect) {
-mkSelectItem("select", "Box Select", "select");
-mkSelectItem("lasso", "Lasso Select", "select-lasso");
-mkSelectItem("selectx", "X Range", "select-x");
-mkSelectItem("selecty", "Y Range", "select-y");
-}
-const exportMenu = document.createElement("div");
-exportMenu.dataset.xyModebarMenu = "";
-exportMenu.dataset.xyModebarExportMenu = "";
-exportMenu.setAttribute("role", "menu");
-exportMenu.setAttribute("aria-label", "Toolbar options");
-exportMenu.style.cssText =
-"position:absolute;display:none;flex-direction:column;z-index:7;pointer-events:auto;";
-bar.appendChild(exportMenu);
-const exportMenuItems = [];
-const mkExportItem = (name, label, onClick, separator = false) => {
-const button = document.createElement("button");
-button.type = "button";
-button.tabIndex = -1;
-button.dataset.xyModebarMenuItem = name;
-button.dataset.xyModebarExportItem = name;
-if (separator) button.dataset.xySeparator = "";
-button.setAttribute("role", "menuitem");
-button.style.cssText = "display:flex;align-items:center;pointer-events:auto;";
-this._applySlot(button, "modebar_button");
-const icon = document.createElement("span");
-icon.dataset.xyModebarMenuIcon = "";
-icon.innerHTML = this._icon(name);
-button.appendChild(icon);
-const text = document.createElement("span");
-text.textContent = label;
-button.appendChild(text);
-this._listen(button, "pointerdown", (e) => e.stopPropagation());
-this._listen(button, "click", (e) => {
-e.stopPropagation();
-setExportMenuOpen(false, true);
-Promise.resolve(onClick()).catch((error) => console.error(`xy: ${label} failed`, error));
-});
-exportMenu.appendChild(button);
-exportMenuItems.push(button);
-return button;
-};
-const EXPORT_ITEMS = {
-png: ["Export PNG", () => this._exportRaster("png")],
-jpeg: ["Export JPEG", () => this._exportRaster("jpeg")],
-webp: ["Export WebP", () => this._exportRaster("webp")],
-svg: ["Export SVG", () => this._exportSvg()],
-csv: ["Export CSV", () => this._exportCsv()],
-};
-const configuredFormats = Array.isArray(this._exportConfig().formats)
-? this._exportConfig().formats
-: ["png", "svg", "csv"];
-for (const name of configuredFormats) {
-const item = EXPORT_ITEMS[name];
-if (item) mkExportItem(name, item[0], item[1]);
-}
-if (zoomTrigger) {
-setZoomMenuOpen = (open, restoreFocus = false) => {
-const show = Boolean(open);
-if (show) {
-setSelectMenuOpen(false);
-setExportMenuOpen(false);
-}
-this._zoomMenuOpen = show;
-zoomTrigger.setAttribute("aria-expanded", String(show));
-if (!show) {
-zoomMenu.style.display = "none";
-zoomIndicator.style.transform = "none";
-if (restoreFocus) zoomTrigger.focus();
-return;
-}
-zoomMenu.style.display = "flex";
-zoomMenu.style.visibility = "hidden";
-const rootRect = root.getBoundingClientRect();
-const barRect = bar.getBoundingClientRect();
-const rootLeft = barRect.left - rootRect.left;
-const rootTop = barRect.top - rootRect.top;
-const below = bar.offsetHeight + 6;
-const above = -zoomMenu.offsetHeight - 6;
-const preferredTop = barRect.bottom + 6 + zoomMenu.offsetHeight <= rootRect.bottom
-? below
-: above;
-zoomIndicator.style.transform = preferredTop === above ? "rotate(180deg)" : "none";
-const maxLeft = root.clientWidth - rootLeft - zoomMenu.offsetWidth;
-const maxTop = root.clientHeight - rootTop - zoomMenu.offsetHeight;
-zoomMenu.style.left = `${Math.max(-rootLeft, Math.min(maxLeft, zoomTrigger.offsetLeft))}px`;
-zoomMenu.style.top = `${Math.max(-rootTop, Math.min(maxTop, preferredTop))}px`;
-zoomMenu.style.visibility = "visible";
-};
-}
-setSelectMenuOpen = (open, restoreFocus = false) => {
-if (!selectTrigger) return;
-const show = Boolean(open);
-if (show) {
-setZoomMenuOpen(false);
-setExportMenuOpen(false);
-}
-this._selectMenuOpen = show;
-selectTrigger.setAttribute("aria-expanded", String(show));
-if (!show) {
-selectMenu.style.display = "none";
-selectIndicator.style.transform = "none";
-if (restoreFocus) selectTrigger.focus();
-return;
-}
-selectMenu.style.display = "flex";
-selectMenu.style.visibility = "hidden";
-const rootRect = root.getBoundingClientRect();
-const barRect = bar.getBoundingClientRect();
-const rootLeft = barRect.left - rootRect.left;
-const rootTop = barRect.top - rootRect.top;
-const below = bar.offsetHeight + 6;
-const above = -selectMenu.offsetHeight - 6;
-const preferredTop = barRect.bottom + 6 + selectMenu.offsetHeight <= rootRect.bottom
-? below
-: above;
-selectIndicator.style.transform = preferredTop === above ? "rotate(180deg)" : "none";
-const maxLeft = root.clientWidth - rootLeft - selectMenu.offsetWidth;
-const maxTop = root.clientHeight - rootTop - selectMenu.offsetHeight;
-selectMenu.style.left = `${Math.max(-rootLeft, Math.min(maxLeft, selectTrigger.offsetLeft))}px`;
-selectMenu.style.top = `${Math.max(-rootTop, Math.min(maxTop, preferredTop))}px`;
-selectMenu.style.visibility = "visible";
-};
-setExportMenuOpen = (open, restoreFocus = false) => {
-const show = Boolean(open) && exportMenuItems.length > 0;
-if (show) {
-setZoomMenuOpen(false);
-setSelectMenuOpen(false);
-}
-this._exportMenuOpen = show;
-grip.setAttribute("aria-expanded", String(show));
-if (!show) {
-exportMenu.style.display = "none";
-if (restoreFocus) grip.focus();
-return;
-}
-exportMenu.style.display = "flex";
-exportMenu.style.visibility = "hidden";
-const rootRect = root.getBoundingClientRect();
-const barRect = bar.getBoundingClientRect();
-const rootLeft = barRect.left - rootRect.left;
-const rootTop = barRect.top - rootRect.top;
-const below = bar.offsetHeight + 6;
-const above = -exportMenu.offsetHeight - 6;
-const preferredTop = barRect.bottom + 6 + exportMenu.offsetHeight <= rootRect.bottom
-? below
-: above;
-const maxLeft = root.clientWidth - rootLeft - exportMenu.offsetWidth;
-const maxTop = root.clientHeight - rootTop - exportMenu.offsetHeight;
-exportMenu.style.left = `${Math.max(-rootLeft, Math.min(maxLeft, grip.offsetLeft))}px`;
-exportMenu.style.top = `${Math.max(-rootTop, Math.min(maxTop, preferredTop))}px`;
-exportMenu.style.visibility = "visible";
-};
-this._closeModebarMenu = () => {
-setZoomMenuOpen(false);
-setSelectMenuOpen(false);
-setExportMenuOpen(false);
-};
-this._syncModebarSelect = () => {
-if (!selectTrigger) return;
-const on = Boolean(this._pickable);
-if (!on) {
-setSelectMenuOpen(false);
-if (this.dragMode.startsWith("select")) this._setDragMode("pan");
-}
-selectTrigger.style.display = on ? "flex" : "none";
-};
-this._syncModebarSelect();
-this._listen(document, "pointerdown", (e) => {
-if (this._zoomMenuOpen && !bar.contains(e.target)) setZoomMenuOpen(false);
-if (this._selectMenuOpen && !bar.contains(e.target)) setSelectMenuOpen(false);
-if (this._exportMenuOpen && !bar.contains(e.target)) setExportMenuOpen(false);
-});
-if (zoomTrigger) {
-this._listen(zoomTrigger, "keydown", (e) => {
-if (e.key !== "ArrowDown" && e.key !== "ArrowUp") return;
-e.preventDefault();
-e.stopPropagation();
-setZoomMenuOpen(true);
-const index = e.key === "ArrowDown" ? 0 : zoomMenuItems.length - 1;
-zoomMenuItems[index].focus();
-});
-this._listen(zoomMenu, "keydown", (e) => {
-if (e.key === "Escape") {
-e.preventDefault();
-e.stopPropagation();
-setZoomMenuOpen(false, true);
-return;
-}
-if (!["ArrowDown", "ArrowUp", "Home", "End"].includes(e.key)) return;
-e.preventDefault();
-const current = zoomMenuItems.indexOf(document.activeElement);
-let next = e.key === "Home" ? 0 : e.key === "End" ? zoomMenuItems.length - 1 : current;
-if (e.key === "ArrowDown") next = (current + 1) % zoomMenuItems.length;
-if (e.key === "ArrowUp") next = (current - 1 + zoomMenuItems.length) % zoomMenuItems.length;
-zoomMenuItems[next].focus();
-});
-}
-if (selectTrigger) {
-this._listen(selectTrigger, "keydown", (e) => {
-if (e.key !== "ArrowDown" && e.key !== "ArrowUp") return;
-e.preventDefault();
-e.stopPropagation();
-setSelectMenuOpen(true);
-const index = e.key === "ArrowDown" ? 0 : selectMenuItems.length - 1;
-selectMenuItems[index].focus();
-});
-this._listen(selectMenu, "keydown", (e) => {
-if (e.key === "Escape") {
-e.preventDefault();
-e.stopPropagation();
-setSelectMenuOpen(false, true);
-return;
-}
-if (!["ArrowDown", "ArrowUp", "Home", "End"].includes(e.key)) return;
-e.preventDefault();
-const current = selectMenuItems.indexOf(document.activeElement);
-let next = e.key === "Home" ? 0 : e.key === "End" ? selectMenuItems.length - 1 : current;
-if (e.key === "ArrowDown") next = (current + 1) % selectMenuItems.length;
-if (e.key === "ArrowUp") {
-next = (current - 1 + selectMenuItems.length) % selectMenuItems.length;
-}
-selectMenuItems[next].focus();
-});
-}
-this._listen(grip, "keydown", (e) => {
-if (e.key !== "ArrowDown" && e.key !== "ArrowUp") return;
-if (!exportMenuItems.length) return;
-e.preventDefault();
-e.stopPropagation();
-setExportMenuOpen(true);
-const index = e.key === "ArrowDown" ? 0 : exportMenuItems.length - 1;
-exportMenuItems[index].focus();
-});
-this._listen(exportMenu, "keydown", (e) => {
-if (e.key === "Escape") {
-e.preventDefault();
-e.stopPropagation();
-setExportMenuOpen(false, true);
-return;
-}
-if (!["ArrowDown", "ArrowUp", "Home", "End"].includes(e.key)) return;
-e.preventDefault();
-const current = exportMenuItems.indexOf(document.activeElement);
-let next = e.key === "Home" ? 0 : e.key === "End" ? exportMenuItems.length - 1 : current;
-if (e.key === "ArrowDown") next = (current + 1) % exportMenuItems.length;
-if (e.key === "ArrowUp") {
-next = (current - 1 + exportMenuItems.length) % exportMenuItems.length;
-}
-exportMenuItems[next].focus();
-});
-root.appendChild(bar);
-this._fitModebar();
-setVisible(root.matches(":hover"));
-this._setDragMode(this.dragMode);
-},
-_fitModebar() {
-const bar = this._modebar;
-if (!bar) return;
-this._closeModebarMenu?.();
-if (!this._modebarMoved) {
-bar.style.top = `${this.plot.y + 4}px`;
-bar.style.left = `${this.plot.x + 4}px`;
-}
-bar.style.display = "flex";
-const fits =
-bar.offsetWidth + 8 <= this.plot.w && bar.offsetHeight + 8 <= this.plot.h;
-if (!fits) {
-bar.style.display = "none";
-return;
-}
-this._clampModebar();
-},
-_setDragMode(mode) {
-this.dragMode = mode;
-if (this.canvas) this.canvas.dataset.xyDragmode = mode;
-for (const [name, btn] of Object.entries(this._modeBtns || {})) {
-btn.classList.toggle("xy-active", name === mode);
-btn.setAttribute("aria-pressed", String(name === mode));
-}
-this._zoomMenuButton?.classList.toggle("xy-active", mode === "zoom");
-this._selectMenuButton?.classList.toggle("xy-active", mode.startsWith("select"));
-const selectionMode = {
-select: ["select", "Box Select"],
-"select-lasso": ["lasso", "Lasso Select"],
-"select-x": ["selectx", "X Range"],
-"select-y": ["selecty", "Y Range"],
-}[mode];
-if (selectionMode && this._selectMenuButton && this._selectMenuIcon) {
-const [iconName, label] = selectionMode;
-this._selectMenuIcon.innerHTML = this._icon(iconName);
-this._selectMenuButton.title = `Selection controls: ${label}`;
-this._selectMenuButton.setAttribute("aria-label", `Selection controls: ${label}`);
-}
-},
-_actionLabel(action, axes) {
-const ids = Array.isArray(axes) ? axes : [...axes || []];
-if (!ids.length) return action;
-return `${action} on ${ids.join(" and ")} ${ids.length === 1 ? "axis" : "axes"}`;
-},
-_updateZoomMenuLabel() {
-if (!this._zoomMenuLabel || !this.view || !this.view0) return;
-const axisPercent = (axisId, lo, hi, homeLo, homeHi) => {
-const axis = this._axis(axisId);
-const span = Math.abs(this._axisCoord(axis, hi) - this._axisCoord(axis, lo));
-const homeSpan = Math.abs(
-this._axisCoord(axis, homeHi) - this._axisCoord(axis, homeLo)
-);
-return Number.isFinite(span) && span > 0 && Number.isFinite(homeSpan) && homeSpan > 0
-? (homeSpan / span) * 100
-: null;
-};
-const zoomAxes = [...this._zoomAxes()];
-const percentages = zoomAxes.map((axisId) => {
-const [lo, hi] = this._axisRange(axisId);
-const [homeLo, homeHi] = this._axisRange(axisId, this.view0);
-return [axisId, axisPercent(axisId, lo, hi, homeLo, homeHi)];
-}).filter((entry) => entry[1] !== null);
-const percent = percentages[0]?.[1] ?? 100;
-const rounded = Math.round(percent);
-const exactText = percent < 1 ? "<1%" : `${rounded}%`;
-const displayText = rounded > 999 ? `${String(rounded).slice(0, 3)}…%` : exactText;
-if (this._zoomMenuLabel.dataset.xyZoomExact === exactText
-&& this._zoomMenuLabel.textContent === displayText) return;
-this._zoomMenuLabel.textContent = displayText;
-this._zoomMenuLabel.dataset.xyZoomExact = exactText;
-const details = percentages.map(([axisId, value]) => `${axisId} ${Math.round(value)}%`).join(", ");
-this._zoomMenuButton.title = `Zoom controls (${details || exactText})`;
-this._zoomMenuButton.setAttribute("aria-label", `Zoom controls, ${details || exactText}`);
-},
-_prefersReducedMotion() {
-return window.matchMedia?.("(prefers-reduced-motion: reduce)")?.matches === true;
-},
-_cancelViewAnimation() {
-if (this._animRaf) cancelAnimationFrame(this._animRaf);
-this._animRaf = null;
-this._viewAnim = null;
-},
-_setView(next, opts = {}) {
-if (this._destroyed) return [];
-const target = this._clampView(this._viewFrom(next), { anchors: opts.anchors });
-const changedAxes = this._axisIds().filter((axisId) => {
-const before = this._axisRange(axisId);
-const after = this._axisRange(axisId, target);
-return before[0] !== after[0] || before[1] !== after[1];
-});
-if (!changedAxes.length) return [];
-if (!this._viewAnim) {
-this._historyRecord({
-source: opts.source || "programmatic",
-interactionId: opts.interactionId,
-history: opts.history,
-});
-}
-const animate = opts.animate === true && !this._prefersReducedMotion();
-const duration = opts.duration || 180;
-if (!animate || duration <= 0) {
-this._cancelViewAnimation();
-this.view = target;
-this.draw();
-if (opts.request !== false) this._scheduleViewRequest();
-this._emitViewChange(opts.source || "programmatic", {
-axes: changedAxes,
-phase: opts.phase || "end",
-interactionId: opts.interactionId,
-broadcast: opts.broadcast,
-});
-return changedAxes;
-}
-clearTimeout(this._viewTimer);
-this.seq += 1;
-const request = opts.request !== false;
-const requestDelay = opts.requestDelay ?? Math.min(55, Math.max(24, duration * 0.35));
-const requestMaxWait = opts.requestMaxWait ?? 130;
-if (request) {
-this._scheduleViewRequest(target, { seq: this.seq, delay: requestDelay, maxWait: requestMaxWait });
-}
-const now = this._now();
-const tau = Math.max(18, duration / 5);
-if (this._viewAnim) {
-Object.assign(this._viewAnim, {
-target,
-tau,
-changedAxes: [...new Set([...this._viewAnim.changedAxes, ...changedAxes])],
-source: opts.source || "programmatic",
-phase: opts.phase || "end",
-interactionId: opts.interactionId,
-broadcast: opts.broadcast,
-});
-return changedAxes;
-}
-this._viewAnim = {
-target,
-last: now,
-tau,
-changedAxes,
-source: opts.source || "programmatic",
-phase: opts.phase || "end",
-interactionId: opts.interactionId,
-broadcast: opts.broadcast,
-};
-const lerp = (a, b, t) => a + (b - a) * t;
-const span = (v) => Math.max(
-...this._axisIds().map((axisId) => {
-const [lo, hi] = this._axisRange(axisId, v);
-return Math.abs(hi - lo);
-}),
-1e-12,
-);
-const closeEnough = (a, b) => {
-const tol = span(b) * 1e-4;
-return Math.max(...this._axisIds().flatMap((axisId) => {
-const ar = this._axisRange(axisId, a), br = this._axisRange(axisId, b);
-return [Math.abs(ar[0] - br[0]), Math.abs(ar[1] - br[1])];
-})) <= tol;
-};
-const step = (nowFrame) => {
-if (this._destroyed) { this._animRaf = null; return; }
-const anim = this._viewAnim;
-if (!anim) { this._animRaf = null; return; }
-const dt = Math.max(0, Math.min(64, nowFrame - anim.last));
-anim.last = nowFrame;
-const k = 1 - Math.exp(-dt / anim.tau);
-const t = closeEnough(this.view, anim.target) ? 1 : k;
-const ranges = {};
-for (const axisId of this._axisIds()) {
-const current = this._axisRange(axisId), targetRange = this._axisRange(axisId, anim.target);
-ranges[axisId] = [
-lerp(current[0], targetRange[0], t),
-lerp(current[1], targetRange[1], t),
-];
-}
-this.view = this._copyView({ ranges });
-if (t < 1) {
-this.draw();
-this._animRaf = requestAnimationFrame(step);
-} else {
-this._animRaf = null;
-this._viewAnim = null;
-this.view = anim.target;
-this._lastLabelDraw = null;
-this.draw();
-this._emitViewChange(anim.source, {
-axes: anim.changedAxes,
-phase: anim.phase,
-interactionId: anim.interactionId,
-broadcast: anim.broadcast,
-});
-}
-};
-this._animRaf = requestAnimationFrame(step);
-return changedAxes;
-},
-_zoomLimitForAxis(axisId) {
-if (!this._axisPolicy("zoom_axes").includes(axisId)) return [null, null];
-const configured = this.interaction?.zoom_limits;
-if (configured && typeof configured === "object" && !Array.isArray(configured)) {
-const pair = configured[axisId];
-if (Array.isArray(pair) && pair.length === 2) return pair;
-}
-return [1, null];
-},
-_clampAxisRange(axisId, lo, hi, anchorFrac = 0.5) {
-const axis = this._axis(axisId);
-let c0 = this._axisCoord(axis, lo), c1 = this._axisCoord(axis, hi);
-if (![c0, c1].every(Number.isFinite) || c0 === c1) return this._axisRange(axisId, this.view0);
-const home = this.view0?.ranges?.[axisId];
-if (home) {
-const h0 = this._axisCoord(axis, home[0]), h1 = this._axisCoord(axis, home[1]);
-const homeSpan = Math.abs(h1 - h0);
-const [minMagRaw, maxMagRaw] = this._zoomLimitForAxis(axisId);
-const minMag = Number(minMagRaw), maxMag = Number(maxMagRaw);
-const maxSpan = Number.isFinite(minMag) && minMag > 0 ? homeSpan / minMag : Infinity;
-const minSpan = Number.isFinite(maxMag) && maxMag > 0 ? homeSpan / maxMag : 0;
-const requestedSpan = Math.abs(c1 - c0);
-const limitedSpan = Math.max(minSpan, Math.min(maxSpan, requestedSpan));
-if (Number.isFinite(limitedSpan) && limitedSpan > 0 && limitedSpan !== requestedSpan) {
-const direction = c1 < c0 ? -1 : 1;
-const anchor = c0 + anchorFrac * (c1 - c0);
-c0 = anchor - anchorFrac * limitedSpan * direction;
-c1 = anchor + (1 - anchorFrac) * limitedSpan * direction;
-}
-}
-let boundLo = -Infinity, boundHi = Infinity;
-if (Array.isArray(axis.bounds) && axis.bounds.length === 2) {
-const b0 = this._axisCoord(axis, axis.bounds[0]);
-const b1 = this._axisCoord(axis, axis.bounds[1]);
-if (![c0, c1, b0, b1].every(Number.isFinite) || b0 === b1) return [lo, hi];
-boundLo = Math.min(b0, b1);
-boundHi = Math.max(b0, b1);
-}
-if (home && this._axisContained(axisId)) {
-const h0 = this._axisCoord(axis, home[0]);
-const h1 = this._axisCoord(axis, home[1]);
-if ([h0, h1].every(Number.isFinite) && h0 !== h1) {
-boundLo = Math.max(boundLo, Math.min(h0, h1));
-boundHi = Math.min(boundHi, Math.max(h0, h1));
-}
-}
-if (!Number.isFinite(boundLo) || !Number.isFinite(boundHi) || boundHi <= boundLo) {
-return [this._axisValue(axis, c0), this._axisValue(axis, c1)];
-}
-const reverse = c1 < c0;
-let outLo = Math.min(c0, c1), outHi = Math.max(c0, c1);
-if (outHi - outLo >= boundHi - boundLo) {
-outLo = boundLo;
-outHi = boundHi;
-} else {
-const shift = Math.max(boundLo - outLo, Math.min(boundHi - outHi, 0));
-outLo += shift;
-outHi += shift;
-}
-const first = reverse ? outHi : outLo;
-const second = reverse ? outLo : outHi;
-return [this._axisValue(axis, first), this._axisValue(axis, second)];
-},
-_clampView(view, opts = {}) {
-const candidate = this._viewFrom(view, this.view0);
-const ranges = {};
-for (const axisId of this._axisIds()) {
-const [lo, hi] = this._axisRange(axisId, candidate);
-ranges[axisId] = this._clampAxisRange(axisId, lo, hi, opts.anchors?.[axisId] ?? 0.5);
-}
-return this._copyView({ ranges });
-},
-_zoomAxes() {
-return new Set(this._axisPolicy("zoom_axes"));
-},
-_zoomBy(f, animate = false, source = f < 1 ? "zoom_in" : "zoom_out") {
-const base = this._viewAnim ? this._viewAnim.target : this.view;
-const axes = this._zoomAxes();
-const ranges = Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId, base)]])
-);
-for (const axisId of axes) {
-const [lo, hi] = ranges[axisId];
-const range = this._zoomAxisRange(axisId, lo, hi, f, 0.5);
-if (range) ranges[axisId] = range;
-}
-this._setView({ ranges }, {
-animate,
-source,
-phase: "end",
-interactionId: ++this._interactionSeq,
-});
-},
-_zoomAxisRange(axisId, lo, hi, f, anchorFrac) {
-const axis = this._axis(axisId);
-const c0 = this._axisCoord(axis, lo);
-const c1 = this._axisCoord(axis, hi);
-if (![c0, c1].every(Number.isFinite) || c0 === c1) return null;
-const ca = c0 + anchorFrac * (c1 - c0);
-if (f < 1) {
-const minSpan = Math.max(Math.abs(ca), 1e-30) * 1e-12;
-if (Math.abs((c1 - c0) * f) < minSpan) return null;
-}
-const next0 = ca - (ca - c0) * f;
-const next1 = ca + (c1 - ca) * f;
-if (f > 1 && this.view0) {
-const home = this._axisRange(axisId, this.view0);
-const home0 = this._axisCoord(axis, home[0]);
-const home1 = this._axisCoord(axis, home[1]);
-const homeSpan = Math.abs(home1 - home0);
-if ([home0, home1].every(Number.isFinite)
-&& homeSpan > 0
-&& Math.abs(next1 - next0) > homeSpan) {
-const signedHome = homeSpan * Math.sign(next1 - next0);
-return [
-this._axisValue(axis, ca - anchorFrac * signedHome),
-this._axisValue(axis, ca + (1 - anchorFrac) * signedHome),
-];
-}
-}
-return [
-this._axisValue(axis, next0),
-this._axisValue(axis, next1),
-];
-},
-_zoomAt(f, fx, fy, animate = false, duration = 120, opts = {}) {
-const base = this._viewAnim ? this._viewAnim.target : this.view;
-const axes = Array.isArray(opts.axes)
-? new Set(opts.axes.filter((axisId) => this._zoomAxes().has(axisId)))
-: this._zoomAxes();
-const ranges = Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId, base)]])
-);
-const anchors = {};
-for (const axisId of axes) {
-const anchor = this._axisDim(axisId) === "x" ? fx : fy;
-const [lo, hi] = ranges[axisId];
-const range = this._zoomAxisRange(axisId, lo, hi, f, anchor);
-if (range) ranges[axisId] = range;
-anchors[axisId] = anchor;
-}
-return this._setView({ ranges }, {
-animate,
-duration,
-anchors,
-source: opts.source || "wheel_zoom",
-phase: opts.phase || "update",
-interactionId: opts.interactionId,
-});
-},
-_queueWheelZoom(factor, fx, fy, axesScope = null) {
-if (!Number.isFinite(factor) || factor <= 0) return;
-clearTimeout(this._wheelZoomEndTimer);
-this._wheelZoomEndTimer = null;
-const scopeKey = Array.isArray(axesScope) ? axesScope.join(",") : "";
-if (this._wheelGesture && this._wheelGesture.scopeKey !== scopeKey) {
-const gesture = this._wheelGesture;
-this._wheelGesture = null;
-if (gesture.axes.size) {
-this._emitViewChange("wheel_zoom", {
-axes: [...gesture.axes],
-phase: "end",
-interactionId: gesture.interactionId,
-});
-}
-}
-if (!this._wheelGesture) {
-this._wheelGesture = {
-interactionId: ++this._interactionSeq,
-axes: new Set(),
-scopeKey,
-};
-}
-if (!this._pendingWheelZoom) {
-this._pendingWheelZoom = {
-factor: 1,
-fx,
-fy,
-interactionId: this._wheelGesture.interactionId,
-axes: [],
-axesScope,
-};
-}
-this._pendingWheelZoom.factor *= factor;
-this._pendingWheelZoom.fx = fx;
-this._pendingWheelZoom.fy = fy;
-this._pendingWheelZoom.axesScope = axesScope;
-if (this._wheelZoomRaf) return;
-this._wheelZoomRaf = requestAnimationFrame(() => {
-this._wheelZoomRaf = null;
-const pending = this._pendingWheelZoom;
-this._pendingWheelZoom = null;
-if (!pending || this._destroyed) return;
-pending.axes = this._zoomAt(pending.factor, pending.fx, pending.fy, false, 120, {
-source: "wheel_zoom",
-phase: "update",
-interactionId: pending.interactionId,
-axes: pending.axesScope || undefined,
-}) || [];
-for (const axisId of pending.axes) this._wheelGesture?.axes.add(axisId);
-clearTimeout(this._wheelZoomEndTimer);
-this._wheelZoomEndTimer = setTimeout(() => {
-const gesture = this._wheelGesture;
-this._wheelGesture = null;
-if (this._destroyed || !gesture || !gesture.axes.size) return;
-this._emitViewChange("wheel_zoom", {
-axes: [...gesture.axes],
-phase: "end",
-interactionId: gesture.interactionId,
-});
-}, 90);
-});
-},
-_zoomToBox(d0, d1, animate = false, opts = {}) {
-const axes = this._zoomAxes();
-const fractions = {};
-for (const dim of ["x", "y"]) {
-const primary = this._axis(dim);
-const [lo, hi] = this._axisRange(dim);
-const c0 = this._axisCoord(primary, lo), c1 = this._axisCoord(primary, hi);
-const first = this._axisCoord(primary, d0[dim === "x" ? 0 : 1]);
-const second = this._axisCoord(primary, d1[dim === "x" ? 0 : 1]);
-if (![c0, c1, first, second].every(Number.isFinite) || c0 === c1) return [];
-fractions[dim] = [(first - c0) / (c1 - c0), (second - c0) / (c1 - c0)];
-}
-const ranges = Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId)]])
-);
-const anchors = {};
-for (const axisId of axes) {
-const axis = this._axis(axisId);
-const [lo, hi] = ranges[axisId];
-const c0 = this._axisCoord(axis, lo), c1 = this._axisCoord(axis, hi);
-const [f0, f1] = fractions[this._axisDim(axisId)];
-const a = c0 + f0 * (c1 - c0), b = c0 + f1 * (c1 - c0);
-const minSpan = Math.max(Math.abs(a), Math.abs(b), 1e-30) * 1e-12;
-if (!Number.isFinite(a) || !Number.isFinite(b) || Math.abs(b - a) < minSpan) continue;
-const reverse = c1 < c0;
-const low = Math.min(a, b), high = Math.max(a, b);
-ranges[axisId] = [
-this._axisValue(axis, reverse ? high : low),
-this._axisValue(axis, reverse ? low : high),
-];
-anchors[axisId] = 0.5;
-}
-return this._setView({ ranges }, {
-animate,
-anchors,
-source: opts.source || "box_zoom",
-phase: opts.phase || "end",
-interactionId: opts.interactionId,
-});
-},
-_resetView(animate = true, source = "reset", axesOverride = null) {
-const ranges = Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId)]])
-);
-for (const axisId of axesOverride || this._resetAxisPolicy()) {
-ranges[axisId] = [...this._axisRange(axisId, this.view0)];
-}
-return this._setView({ ranges }, {
-animate,
-source,
-phase: "end",
-interactionId: ++this._interactionSeq,
-});
-},
-_exportConfig() {
-const config = this.spec && this.spec.export;
-return config && typeof config === "object" ? config : {};
-},
-_exportFilename(extension) {
-const configured = this._exportConfig().filename;
-if (typeof configured === "string" && configured) return `${configured}.${extension}`;
-const title = String(this.spec.title || "xy-chart")
-.trim()
-.toLowerCase()
-.replace(/[^a-z0-9]+/g, "-")
-.replace(/^-+|-+$/g, "") || "xy-chart";
-return `${title}.${extension}`;
-},
-_downloadExport(blob, filename) {
-const url = URL.createObjectURL(blob);
-const link = document.createElement("a");
-link.href = url;
-link.download = filename;
-link.style.display = "none";
-document.body.appendChild(link);
-link.click();
-link.remove();
-setTimeout(() => URL.revokeObjectURL(url), 0);
-},
-_exportSvgMarkup() {
-this._drawNow?.();
-this.gl?.finish?.();
-const width = this.size.w;
-const height = this.size.h;
-const clone = this.root.cloneNode(true);
-clone.style.width = `${width}px`;
-clone.style.height = `${height}px`;
-clone.style.margin = "0";
-clone.setAttribute("xmlns", "http://www.w3.org/1999/xhtml");
-const computed = getComputedStyle(this.root);
-const inheritedProperties = [
-"color", "font-family", "font-size", "font-style", "font-weight",
-"letter-spacing", "line-height",
-];
-const chartTokens = [
-"--chart-bg", "--chart-text", "--chart-grid", "--chart-axis",
-"--chart-tooltip-bg", "--chart-tooltip-text", "--chart-legend-bg",
-"--chart-badge-bg", "--chart-badge-text", "--chart-modebar-bg",
-"--chart-modebar-active", "--chart-selection", "--chart-selection-fill",
-"--chart-zoom-selection", "--chart-zoom-selection-fill", "--chart-crosshair",
-"--chart-annotation-text", "--chart-cursor", "--chart-cursor-pan",
-];
-for (let i = 0; i < computed.length; i++) {
-const property = computed.item(i);
-if (!property.startsWith("--")) continue;
-const value = computed.getPropertyValue(property).trim();
-if (value) clone.style.setProperty(property, value);
-}
-for (const property of [...inheritedProperties, ...chartTokens]) {
-const value = computed.getPropertyValue(property).trim();
-if (value) clone.style.setProperty(property, value);
-}
-const sourceCanvases = [...this.root.querySelectorAll("canvas")];
-const clonedCanvases = [...clone.querySelectorAll("canvas")];
-for (let i = 0; i < clonedCanvases.length; i++) {
-const source = sourceCanvases[i];
-const target = clonedCanvases[i];
-if (!source || !target) continue;
-const image = document.createElement("img");
-image.setAttribute("src", source.toDataURL("image/png"));
-image.setAttribute("alt", "");
-image.setAttribute("style", target.getAttribute("style") || "");
-image.setAttribute("width", String(source.clientWidth || source.width));
-image.setAttribute("height", String(source.clientHeight || source.height));
-for (const attr of target.attributes) {
-if (attr.name.startsWith("data-")) image.setAttribute(attr.name, attr.value);
-}
-target.replaceWith(image);
-}
-clone.querySelectorAll(
-'[data-xy-slot="modebar"],[data-xy-slot="tooltip"],' +
-'[data-xy-slot="selection"],[data-xy-selection-lasso-overlay],' +
-'[data-xy-slot="crosshair_x"],[data-xy-slot="crosshair_y"]'
-).forEach((node) => node.remove());
-const stylesheet = document.createElement("style");
-stylesheet.textContent = XY_CHROME_CSS;
-clone.prepend(stylesheet);
-const content = new XMLSerializer().serializeToString(clone);
-return `<svg xmlns="http://www.w3.org/2000/svg" width="${width}" height="${height}" ` +
-`viewBox="0 0 ${width} ${height}"><foreignObject width="100%" height="100%">` +
-`${content}</foreignObject></svg>`;
-},
-_exportSvg() {
-const svg = this._exportSvgMarkup();
-this._downloadExport(
-new Blob([svg], { type: "image/svg+xml;charset=utf-8" }),
-this._exportFilename("svg")
-);
-},
-_exportPng() {
-return this._exportRaster("png");
-},
-_exportRaster(format) {
-const svg = this._exportSvgMarkup();
-const sourceUrl = `data:image/svg+xml;charset=utf-8,${encodeURIComponent(svg)}`;
-const image = new Image();
-const config = this._exportConfig();
-const mime = { png: "image/png", jpeg: "image/jpeg", webp: "image/webp" }[format];
-if (!mime) return Promise.reject(new Error(`unsupported raster export ${format}`));
-return new Promise((resolve, reject) => {
-image.onload = () => {
-const scale = Number.isFinite(config.scale) && config.scale > 0
-? config.scale
-: Math.max(1, window.devicePixelRatio || 1);
-const canvas = document.createElement("canvas");
-canvas.width = Math.round(this.size.w * scale);
-canvas.height = Math.round(this.size.h * scale);
-const ctx = canvas.getContext("2d");
-const configured = typeof config.background === "string" &&
-config.background !== "auto" ? config.background : null;
-const transparent = configured === "transparent" || configured === "none";
-if (format === "jpeg") {
-ctx.fillStyle = configured && !transparent ? configured : "#ffffff";
-ctx.fillRect(0, 0, canvas.width, canvas.height);
-} else if (configured && !transparent) {
-ctx.fillStyle = configured;
-ctx.fillRect(0, 0, canvas.width, canvas.height);
-}
-ctx.scale(scale, scale);
-ctx.drawImage(image, 0, 0, this.size.w, this.size.h);
-const quality = Number.isFinite(config.quality)
-? Math.min(1, Math.max(0.01, config.quality / 100))
-: 0.9;
-canvas.toBlob((blob) => {
-if (!blob) {
-reject(new Error(`${format.toUpperCase()} encoding returned no data`));
-return;
-}
-const actual = blob.type === "image/jpeg" ? "jpg"
-: blob.type === "image/webp" ? "webp"
-: "png";
-this._downloadExport(blob, this._exportFilename(actual));
-resolve();
-}, mime, format === "png" ? undefined : quality);
-};
-image.onerror = () => {
-reject(new Error("chart SVG could not be rasterized"));
-};
-image.src = sourceUrl;
-});
-},
-_exportCsvText() {
-const columns = ["trace", "name", "kind", "index", "x", "y", "x0", "x1", "y0", "y1", "value"];
-const rows = [columns];
-const clean = (value) => Number.isFinite(value) ? value : "";
-for (const g of this.gpuTraces || []) {
-const trace = g.trace || {};
-const prefix = [trace.id ?? "", trace.name ?? "", trace.kind ?? ""];
-if (g._cpuRect) {
-const r = g._cpuRect;
-const n = Math.min(r.x0.length, r.x1.length, r.y0.length, r.y1.length);
-for (let i = 0; i < n; i++) {
-rows.push([...prefix, i, "", "",
-clean(this._decodeValue(r.x0, r.x0Meta, i)),
-clean(this._decodeValue(r.x1, r.x1Meta, i)),
-clean(this._decodeValue(r.y0, r.y0Meta, i)),
-clean(this._decodeValue(r.y1, r.y1Meta, i)), ""]);
-}
-continue;
-}
-if (g.heatmap && g._cpuHeatmap) {
-const h = g.heatmap;
-for (let i = 0; i < g._cpuHeatmap.grid.length; i++) {
-const row = Math.floor(i / h.w);
-const col = i % h.w;
-const x = h.xRange[0] + (col + 0.5) * ((h.xRange[1] - h.xRange[0]) / h.w);
-const y = h.yRange[0] + (row + 0.5) * ((h.yRange[1] - h.yRange[0]) / h.h);
-const value = this._denormalizeUnit(g._cpuHeatmap.grid[i], trace.color?.domain);
-rows.push([...prefix, i, clean(x), clean(y), "", "", "", "", clean(value)]);
-}
-continue;
-}
-const cpu = g._cpu;
-if (!cpu?.x || !cpu?.y) continue;
-const n = Math.min(cpu.x.length, cpu.y.length, g.n || Infinity);
-for (let i = 0; i < n; i++) {
-rows.push([...prefix, i,
-clean(this._decodeValue(cpu.x, cpu.xMeta || g.xMeta, i)),
-clean(this._decodeValue(cpu.y, cpu.yMeta || g.yMeta, i)),
-"", "", "", "", ""]);
-}
-}
-const quote = (value) => {
-const text = String(value ?? "");
-const escaped = text.split('"').join('""');
-return text.includes(",") || text.includes('"') || text.includes("\r") || text.includes("\n")
-? `"${escaped}"`
-: text;
-};
-return rows.map((row) => row.map(quote).join(",")).join("\r\n") + "\r\n";
-},
-_exportCsv() {
-this._downloadExport(
-new Blob([this._exportCsvText()], { type: "text/csv;charset=utf-8" }),
-this._exportFilename("csv")
-);
-},
-_icon(name) {
-const svg = (body) =>
-`<svg width="15" height="15" viewBox="0 0 20 20" fill="none" ` +
-`stroke="currentColor" stroke-width="1.6" stroke-linecap="round" ` +
-`stroke-linejoin="round">${body}</svg>`;
-switch (name) {
-case "zoomin":
-return svg('<circle cx="8.5" cy="8.5" r="5.5"/><path d="M12.5 12.5 L17 17"/>' +
-'<path d="M8.5 6 V11 M6 8.5 H11"/>');
-case "zoomout":
-return svg('<circle cx="8.5" cy="8.5" r="5.5"/><path d="M12.5 12.5 L17 17"/>' +
-'<path d="M6 8.5 H11"/>');
-case "pan":
-return svg('<path d="M10 3 V17 M3 10 H17"/><path d="M10 3 L8 5 M10 3 L12 5"/>' +
-'<path d="M10 17 L8 15 M10 17 L12 15"/><path d="M3 10 L5 8 M3 10 L5 12"/>' +
-'<path d="M17 10 L15 8 M17 10 L15 12"/>');
-case "zoom":
-return svg('<path d="M7 3.5 H3.5 V7 M13 3.5 H16.5 V7 ' +
-'M3.5 13 V16.5 H7 M16.5 13 V16.5 H13"/>');
-case "select":
-return svg('<path d="M7 4 H4 V7 M13 4 H16 V7 M4 13 V16 H7 ' +
-'M16 13 V16 H13"/><circle cx="7" cy="8" r="1" fill="currentColor" ' +
-'stroke="none"/><circle cx="12.5" cy="9" r="1" fill="currentColor" stroke="none"/>' +
-'<circle cx="9.5" cy="13" r="1" fill="currentColor" stroke="none"/>');
-case "lasso":
-return svg('<path d="M5 5.5 C7 3 13.5 3.5 15.5 7 C17 10 14 15.5 9 15.5 ' +
-'C4.5 15.5 2.5 11 4 7.5 Z"/><circle cx="5" cy="5.5" r="1" ' +
-'fill="currentColor" stroke="none"/><circle cx="15.5" cy="7" r="1" ' +
-'fill="currentColor" stroke="none"/><circle cx="9" cy="15.5" r="1" ' +
-'fill="currentColor" stroke="none"/>');
-case "selectx":
-return svg('<path d="M5 4 V16 M15 4 V16 M7 10 H13 ' +
-'M7 10 L9 8 M7 10 L9 12 M13 10 L11 8 M13 10 L11 12"/>');
-case "selecty":
-return svg('<path d="M4 5 H16 M4 15 H16 M10 7 V13 ' +
-'M10 7 L8 9 M10 7 L12 9 M10 13 L8 11 M10 13 L12 11"/>');
-case "chevrondown":
-return svg('<path d="M6 8 L10 12 L14 8"/>');
-case "collapse":
-return svg('<path d="M4 5 H16 M4 15 H16 M7 8 L10 11 L13 8"/>');
-case "expand":
-return svg('<path d="M4 5 H16 M4 15 H16 M7 12 L10 9 L13 12"/>');
-case "png":
-return svg('<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/>' +
-'<path d="M7 13 L9 10.5 L11 12 L13.5 9 V15 H7 Z"/>');
-case "jpeg":
-return svg('<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/>' +
-'<circle cx="8.5" cy="10" r="1.2"/><path d="M7 15 L10 12 L13.5 15 Z"/>');
-case "webp":
-return svg('<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/>' +
-'<path d="M7 11 C8 10 9 10 10 11 C11 12 12 12 13.5 11"/>' +
-'<path d="M7 14 C8 13 9 13 10 14 C11 15 12 15 13.5 14"/>');
-case "svg":
-return svg('<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/>' +
-'<path d="M7 13 L9 9 L11 14 L13.5 10"/>');
-case "csv":
-return svg('<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/>' +
-'<path d="M7 9 H13 M7 12 H13 M7 15 H13 M9 8 V16"/>');
-case "reset":
-return svg('<path d="M4 10 a6 6 0 1 1 1.8 4.3"/><path d="M4 6 V10 H8"/>');
-case "historyback":
-return svg('<path d="M13 4 L7 10 L13 16"/>');
-case "historyforward":
-return svg('<path d="M7 4 L13 10 L7 16"/>');
-case "drag":
-return svg('<circle cx="7" cy="5" r=".8" fill="currentColor" stroke="none"/>' +
-'<circle cx="13" cy="5" r=".8" fill="currentColor" stroke="none"/>' +
-'<circle cx="7" cy="10" r=".8" fill="currentColor" stroke="none"/>' +
-'<circle cx="13" cy="10" r=".8" fill="currentColor" stroke="none"/>' +
-'<circle cx="7" cy="15" r=".8" fill="currentColor" stroke="none"/>' +
-'<circle cx="13" cy="15" r=".8" fill="currentColor" stroke="none"/>');
-default:
-return svg("");
-}
-},
-});
-Object.assign(ChartView.prototype, {
-_scheduleViewRequest(viewOverride = this.view, opts = {}) {
-if (this._destroyed || this._glLost) return;
-if (!this.comm) {
-this._scheduleSampleRebin(viewOverride, opts);
-return;
-}
-const needsDecimated = this.spec.traces.some((t) => t.tier === "decimated");
-const needsDensity = this.gpuTraces.some((g) => g.tier === "density");
-if (!needsDecimated && !needsDensity) return;
-const seq = opts.seq ?? ++this.seq;
-const view = this._copyView(viewOverride);
-const plotW = Math.round(this.plot.w);
-const plotH = Math.round(this.plot.h);
-if (needsDensity) {
-const now = this._now();
-for (const g of this.gpuTraces) {
-if (g.tier !== "density") continue;
-g._lodPendingView = view;
-g._lodPendingSeq = seq;
-g._lodPendingAt = now;
-}
-}
-let delay = opts.delay ?? 120;
-if (opts.maxWait !== undefined && opts.maxWait !== null) {
-const now = this._now();
-if (this._viewRequestBurstStart === undefined || this._viewRequestBurstStart === null) {
-this._viewRequestBurstStart = now;
-}
-const remaining = opts.maxWait - (now - this._viewRequestBurstStart);
-delay = remaining <= 0 ? 0 : Math.min(delay, remaining);
-} else {
-this._viewRequestBurstStart = null;
-}
-clearTimeout(this._viewTimer);
-const send = () => {
-if (this._destroyed) return;
-this._viewRequestBurstStart = null;
-if (seq !== this.seq) return;
-if (needsDecimated) {
-this.comm.send({
-type: "view", seq,
-x0: Math.min(view.x0, view.x1), x1: Math.max(view.x0, view.x1), px: plotW,
-});
-}
-if (needsDensity) {
-for (const g of this.gpuTraces) {
-if (g.tier !== "density") continue;
-const [x0, x1] = this._axisRange(g.xAxis, view);
-const [y0, y1] = this._axisRange(g.yAxis, view);
-this.comm.send({
-type: "density_view", seq, trace: g.trace.id,
-x0: Math.min(x0, x1), x1: Math.max(x0, x1),
-y0: Math.min(y0, y1), y1: Math.max(y0, y1),
-w: plotW, h: plotH,
-});
-}
-}
-};
-if (delay <= 0) {
-send();
-} else {
-this._viewTimer = setTimeout(send, delay);
-}
-return seq;
-},
-_scheduleSampleRebin(viewOverride = this.view, opts = {}) {
-if (this._destroyed || this._glLost || this._sampleRebinDisabled) return;
-const targets = (this.gpuTraces || []).filter(
-(g) => g.tier === "density" && g.sampleOverlay && g.sampleOverlay._cpu
-);
-if (!targets.length) return;
-const seq = opts.seq ?? ++this.seq;
-const view = this._copyView(viewOverride);
-clearTimeout(this._rebinTimer);
-this._rebinTimer = setTimeout(() => {
-if (this._destroyed || seq !== this.seq) return;
-for (const g of targets) this._requestSampleRebin(g, view, seq);
-}, opts.delay ?? 120);
-},
-_requestSampleRebin(g, view, seq) {
-if (!g._homeDensity) g._homeDensity = g.density;
-const [vx0, vx1] = this._axisRange(g.xAxis, view);
-const [vy0, vy1] = this._axisRange(g.yAxis, view);
-const [hx0, hx1] = this._axisRange(g.xAxis, this.view0);
-const [hy0, hy1] = this._axisRange(g.yAxis, this.view0);
-const homeSpanX = Math.max(Math.abs(hx1 - hx0), 1e-300);
-const homeSpanY = Math.max(Math.abs(hy1 - hy0), 1e-300);
-const viewSpanX = Math.abs(vx1 - vx0);
-const viewSpanY = Math.abs(vy1 - vy0);
-const notZoomedIn =
-viewSpanX >= homeSpanX * (1 - 1e-6) && viewSpanY >= homeSpanY * (1 - 1e-6);
-if (notZoomedIn) {
-if (g.density !== g._homeDensity) {
-const hd = g._homeDensity;
-this._applySampleRebinGrid(g, {
-...hd,
-tex: this._uploadGrid(hd.grid, hd.w, hd.h, hd.normMax || hd.max || 1),
-}, false);
-}
-return;
-}
-if (this._sampleRebinDisabled) return;
-if (!this._rebinWorker) {
-this._rebinWorker = xyCreateRebinWorker();
-if (!this._rebinWorker) {
-this._sampleRebinDisabled = true;
-return;
-}
-this._rebinWorker.onmessage = (e) => this._onRebinResult(e.data);
-this._rebinInit = new Set();
-}
-if (!this._rebinInit.has(g.trace.id)) {
-const cpu = g.sampleOverlay._cpu;
-const n = Math.min(cpu.x.length, cpu.y.length);
-const xs = new Float64Array(n);
-const ys = new Float64Array(n);
-for (let i = 0; i < n; i++) {
-xs[i] = this._decodeValue(cpu.x, cpu.xMeta, i);
-ys[i] = this._decodeValue(cpu.y, cpu.yMeta, i);
-}
-this._rebinWorker.postMessage(
-{ type: "init", trace: g.trace.id, x: xs.buffer, y: ys.buffer },
-[xs.buffer, ys.buffer]
-);
-this._rebinInit.add(g.trace.id);
-}
-this._rebinWorker.postMessage({
-type: "rebin", trace: g.trace.id, seq,
-x0: Math.min(vx0, vx1), x1: Math.max(vx0, vx1),
-y0: Math.min(vy0, vy1), y1: Math.max(vy0, vy1),
-w: Math.max(16, Math.min(2048, Math.round(this.plot.w))),
-h: Math.max(16, Math.min(2048, Math.round(this.plot.h))),
-});
-},
-_onRebinResult(msg) {
-if (this._destroyed || this._glLost || !msg || msg.type !== "grid" || msg.seq !== this.seq) return;
-const g = this.gpuTraces.find((t) => t.trace.id === msg.trace && t.tier === "density");
-if (!g) return;
-const grid = new Float32Array(msg.grid);
-this._applySampleRebinGrid(g, {
-w: msg.w, h: msg.h, max: msg.max, normMax: msg.max,
-colormap: g.density.colormap,
-xRange: [msg.x0, msg.x1], yRange: [msg.y0, msg.y1],
-grid,
-tex: this._uploadGrid(grid, msg.w, msg.h, msg.max || 1),
-lut: g.density.lut,
-}, true);
-},
-_applySampleRebinGrid(g, density, rebinned) {
-g.prevDensity = g.density;
-g._densityFadeStart = this._now();
-g.densityNormMax = density.normMax || density.max;
-g.density = density;
-g._sampleRebinned = !!rebinned;
-lodRememberDensity(this, g, g.density);
-this._refreshReductionBadges();
-this.draw();
-},
-_applyAppend(msg, buffers) {
-const spec = msg.spec;
-const blobRaw = buffers && buffers[0];
-if (!spec || !blobRaw || !spec.traces) return;
-const blob = bytesToSpan(blobRaw);
-const spanEps = (lo, hi) => Math.max(Math.abs(hi - lo), 1e-300) * 1e-9;
-const ex = spanEps(this.view0.x0, this.view0.x1);
-const ey = spanEps(this.view0.y0, this.view0.y1);
-const atHome =
-Math.abs(this.view.x0 - this.view0.x0) <= ex && Math.abs(this.view.x1 - this.view0.x1) <= ex &&
-Math.abs(this.view.y0 - this.view0.y0) <= ey && Math.abs(this.view.y1 - this.view0.y1) <= ey;
-const pinnedRight = !atHome && Math.abs(this.view.x1 - this.view0.x1) <= ex;
-const nextHome = {
-x0: spec.x_axis.range[0], x1: spec.x_axis.range[1],
-y0: spec.y_axis.range[0], y1: spec.y_axis.range[1],
-};
-let nextView = { ...this.view };
-if (atHome) {
-nextView = { ...nextHome };
-} else if (pinnedRight) {
-const w = this.view.x1 - this.view.x0;
-nextView = { ...this.view, x1: nextHome.x1, x0: nextHome.x1 - w };
-}
-const animated = !!spec.animation || spec.traces.some((trace) => !!trace.animation);
-if (animated && !this._glLost && this.gl && this.updatePayload(spec, blob)) {
-if (this._transitionView) this._transitionView.to = { ...nextView };
-else this.view = { ...nextView };
-this._scheduleViewRequest(nextView, { delay: 0 });
-return;
-}
-this.spec = spec;
-this.axes = this._normalizeAxes(spec);
-this._payload = blob;
-this.view0 = this._copyView({
-ranges: Object.fromEntries(Object.entries(this.axes).map(([id, axis]) => [id, [...axis.range]])),
-});
-if (atHome) {
-this.view = this._copyView(this.view0);
-} else if (pinnedRight) {
-const w = this.view.x1 - this.view.x0;
-this.view = this._viewFrom({ x1: this.view0.x1, x0: this.view0.x1 - w });
-}
-if (this._glLost || !this.gl) return;
-const texSeen = new Set();
-for (const id of msg.affected || []) {
-const i = this.gpuTraces.findIndex((g) => g.trace.id === id);
-const ts = spec.traces.find((t) => t.id === id);
-if (i < 0 || !ts) continue;
-this._destroyTraceResources(this.gpuTraces[i], texSeen);
-this.gpuTraces[i] = this._buildTrace(blob, ts);
-}
-this._updatePickable();
-this._scheduleViewRequest(this.view, { delay: 0 });
-this.draw();
-},
-_onKernelMsg(msg, buffers) {
-if (this._destroyed) return;
-if (!msg) return;
-if (this._glLost && msg.type !== "append" && msg.type !== "pick_result") return;
-if (msg.type === "tier_update") {
-if (msg.seq !== this.seq) return;
-for (const upd of msg.traces) {
-const g = this.gpuTraces.find((t) => t.trace.id === upd.id);
-if (!g) continue;
-const gl = this.gl;
-const xArr = this._asF32(buffers[upd.x.buf]);
-const yArr = this._asF32(buffers[upd.y.buf]);
-const bArr = upd.base && g.baseBuf ? this._asF32(buffers[upd.base.buf]) : null;
-let n = Math.min(upd.x.len, upd.y.len);
-if (bArr) n = Math.min(n, upd.base.len);
-const sm = this._smoothArrays(g.trace, xArr, yArr, bArr, n);
-const src = sm || { x: xArr, y: yArr, n };
-const st = this._stepArrays(g.trace, src.x, src.y, src.n);
-gl.bindBuffer(gl.ARRAY_BUFFER, g.xBuf);
-gl.bufferData(gl.ARRAY_BUFFER, st ? st.x : src.x, gl.STATIC_DRAW);
-gl.bindBuffer(gl.ARRAY_BUFFER, g.yBuf);
-gl.bufferData(gl.ARRAY_BUFFER, st ? st.y : src.y, gl.STATIC_DRAW);
-g.xMeta = { ...g.xMeta, offset: upd.x.offset, scale: upd.x.scale };
-g.yMeta = { ...g.yMeta, offset: upd.y.offset, scale: upd.y.scale };
-g._dashX = st ? st.x : src.x;
-g._dashY = st ? st.y : src.y;
-if (bArr) {
-gl.bindBuffer(gl.ARRAY_BUFFER, g.baseBuf);
-gl.bufferData(gl.ARRAY_BUFFER, sm ? sm.extra : bArr, gl.STATIC_DRAW);
-g.baseMeta = { ...g.baseMeta, offset: upd.base.offset, scale: upd.base.scale };
-}
-g.n = st ? st.n : src.n;
-}
-this.draw();
-} else if (msg.type === "density_update") {
-if (msg.seq !== undefined && msg.seq !== this.seq) return;
-const densityTraces = msg.traces || [];
-const pendingTraceIds = new Set(densityTraces.map((upd) => Number(upd.id)));
-if (pendingTraceIds.size === 0 && msg.trace !== undefined) {
-pendingTraceIds.add(Number(msg.trace));
-}
-const clearAllPending = pendingTraceIds.size === 0 && msg.stale;
-const clearPending = (g) => {
-if (msg.seq !== undefined && g._lodPendingSeq !== msg.seq) return;
-g._lodPendingView = null;
-g._lodPendingSeq = null;
-g._lodPendingAt = null;
-};
-if (pendingTraceIds.size || clearAllPending) {
-for (const g of this.gpuTraces) {
-if (g.tier !== "density") continue;
-if (!clearAllPending && !pendingTraceIds.has(g.trace.id)) continue;
-clearPending(g);
-}
-}
-for (const upd of densityTraces) {
-const g = this.gpuTraces.find((t) => t.trace.id === upd.id && t.tier === "density");
-if (!g) continue;
-clearPending(g);
-if (upd.mode === "points") { this._applyDrill(g, upd, buffers); continue; }
-lodApplyDensityUpdate(this, g, upd, buffers);
-}
-this._updatePickable();
-this.draw();
-} else if (msg.type === "append") {
-this._applyAppend(msg, buffers);
-} else if (msg.type === "pick_result") {
-if (msg.seq !== undefined && msg.seq !== this._pickSeq) return;
-if (!msg.row) { this._hideTooltip(); return; }
-const local = this._lastRow;
-if (local && local.trace === msg.row.trace && local.index === msg.row.index) {
-for (const [key, value] of Object.entries(local)) {
-if (msg.row[key] === undefined) msg.row[key] = value;
-}
-}
-this._applySharedTooltipFields(msg.row);
-this._lastRow = msg.row;
-if (this._tooltipAnchor
-&& Number.isFinite(msg.row.x) && Number.isFinite(msg.row.y)) {
-this._tooltipAnchor.x = msg.row.x;
-this._tooltipAnchor.y = msg.row.y;
-}
-const xy = this._lastHoverXY;
-if (xy) this._renderTooltip(msg.row, xy.clientX, xy.clientY, {
-announce: !this._a11yKeyboardReadout,
-});
-if (this._interactionFlag("hover")) {
-const detail = {
-row: msg.row,
-trace: msg.row.trace,
-index: msg.row.index,
-exact: true,
-view: this._eventView("hover"),
-};
-if (xy) {
-Object.assign(detail, this._hoverPayload(
-msg.row, this._hoverTarget, xy.clientX, xy.clientY, true,
-));
-}
-this._dispatchChartEvent("hover", detail);
-}
-} else if (msg.type === "selection") {
-if (msg.bounds) this._lastBrush = { mode: "box", ...msg.bounds };
-else if (msg.polygon) this._lastBrush = { mode: "poly", points: msg.polygon };
-if (!msg.traces || !msg.traces.length) this._lastBrush = null;
-this._applySelectionBuffers(msg, buffers);
-this._selectionCount = msg.total || 0;
-this.draw();
-if (this._interactionFlag("select", true)) {
-this._dispatchChartEvent("select", {
-total: this._selectionCount,
-view: this._eventView("select"),
-});
-}
-} else if (msg.type === "state_patch") {
-this._applyStatePatch(msg.state, {
-source: "api",
-animate: msg.animate === true,
-history: msg.history !== false,
-});
-} else if (msg.type === "view_nav") {
-if (msg.op === "reset") this._navReset(msg.axes);
-} else if (msg.type === "selection_rows") {
-this._applyRowsSelection(msg, buffers);
-}
-},
-_applySelectionBuffers(msg, buffers) {
-if (!msg.traces || !msg.traces.length) {
-for (const g of this.gpuTraces) {
-g.selActive = false;
-if (g.drill) g.drill.selActive = false;
-}
-return;
-}
-for (const upd of msg.traces) {
-const g = this.gpuTraces.find((t) => t.trace.id === upd.id);
-if (!g) continue;
-const pg = g.tier === "density" ? g.drill : g;
-if (!pg || !pg.n) continue;
-if (
-g.tier === "density" && upd.drill_seq !== undefined &&
-pg.seq !== undefined && upd.drill_seq !== pg.seq
-) continue;
-const idx = this._asU32(buffers[upd.buf]);
-const mask = new Float32Array(pg.n);
-for (let i = 0; i < idx.length; i++) if (idx[i] < pg.n) mask[idx[i]] = 1;
-this._applySelMask(pg, mask);
-}
-},
-_applyDrill(g, upd, buffers) {
-lodApplyDrill(this, g, upd, buffers);
-},
-_dropDrill(g) {
-lodDropDrill(this, g);
-},
-_viewInside(win) {
-if (!win) return false;
-const { x0, x1, y0, y1 } = this.view;
-const ex = Math.abs(x1 - x0) * 1e-4, ey = Math.abs(y1 - y0) * 1e-4;
-const vx0 = Math.min(x0, x1), vx1 = Math.max(x0, x1);
-const vy0 = Math.min(y0, y1), vy1 = Math.max(y0, y1);
-const wx0 = Math.min(win.x0, win.x1), wx1 = Math.max(win.x0, win.x1);
-const wy0 = Math.min(win.y0, win.y1), wy1 = Math.max(win.y0, win.y1);
-return vx0 >= wx0 - ex && vx1 <= wx1 + ex && vy0 >= wy0 - ey && vy1 <= wy1 + ey;
-},
-_viewOverlaps(win) {
-if (!win) return false;
-const { x0, x1, y0, y1 } = this.view;
-const vx0 = Math.min(x0, x1), vx1 = Math.max(x0, x1);
-const vy0 = Math.min(y0, y1), vy1 = Math.max(y0, y1);
-const wx0 = Math.min(win.x0, win.x1), wx1 = Math.max(win.x0, win.x1);
-const wy0 = Math.min(win.y0, win.y1), wy1 = Math.max(win.y0, win.y1);
-return vx0 <= wx1 && vx1 >= wx0 && vy0 <= wy1 && vy1 >= wy0;
-},
-_viewInsideRange(xRange, yRange) {
-if (!xRange || !yRange) return false;
-return this._viewInside({ x0: xRange[0], x1: xRange[1], y0: yRange[0], y1: yRange[1] });
-},
-});
-const RECT_MARK = {
-build: (view, g, t, buffer) => view._buildRectMark(g, t, buffer),
-draw: (view, g) => {
-const [x0, x1] = view._axisRange(g.xAxis);
-const [y0, y1] = view._axisRange(g.yAxis);
-const edgePad = g.trace.kind === "histogram"
-? [0, 0, view._edgePadForValue(0, y0, y1, view.canvas.height), 0]
-: [0, 0, 0, 0];
-view._drawRects(
-g,
-view._map(g.x0Meta, x0, x1, g.xAxis),
-view._map(g.x1Meta, x0, x1, g.xAxis),
-view._map(g.y0Meta, y0, y1, g.yAxis),
-view._map(g.y1Meta, y0, y1, g.yAxis),
-edgePad
-);
-},
-refreshColor: (view, g) => {
-if (!g.colorMode) g.color = parseColor(view.root, g.trace.style.color, g.color);
-view._rectMarkStyleGpu(g, g.trace);
-},
-};
-const BAR_MARK = {
-build: (view, g, t, buffer) => view._buildBarMark(g, t, buffer),
-draw: (view, g) => {
-if (!g.trace.bar) {
-RECT_MARK.draw(view, g);
-return;
-}
-const horizontal = g.orientation === 1;
-const pAxis = horizontal ? g.yAxis : g.xAxis;
-const vAxis = horizontal ? g.xAxis : g.yAxis;
-const [p0, p1] = view._axisRange(pAxis);
-const [v0, v1] = view._axisRange(vAxis);
-const pmap = view._map(g.posMeta, p0, p1, pAxis);
-const v1map = view._map(g.value1Meta, v0, v1, vAxis);
-const v0map = g.value0Mode === 1
-? view._map(g.value0Meta, v0, v1, vAxis)
-: null;
-const v0Const = g.value0Mode === 0
-? view._mapConst(g.value0Const, v0, v1, vAxis)
-: null;
-const v0EdgePad = g.value0Mode === 0
-? view._edgePadForValue(
-g.value0Const,
-v0,
-v1,
-horizontal ? view.canvas.width : view.canvas.height
-)
-: 0;
-view._drawBars(g, pmap, v1map, v0map, v0Const, v0EdgePad);
-},
-refreshColor: (view, g) => {
-if (!g.colorMode) g.color = parseColor(view.root, g.trace.style.color, g.color);
-view._rectMarkStyleGpu(g, g.trace);
-},
-};
-const SEGMENT_MARK = {
-build: (view, g, t, buffer) => view._buildSegmentMark(g, t, buffer),
-draw: (view, g) => {
-const [x0, x1] = view._axisRange(g.xAxis);
-const [y0, y1] = view._axisRange(g.yAxis);
-view._drawSegments(
-g,
-view._map(g.x0Meta, x0, x1, g.xAxis),
-view._map(g.y0Meta, y0, y1, g.yAxis),
-);
-},
-refreshColor: (view, g) => {
-if (!g.colorMode) g.color = parseColor(view.root, g.trace.style.color, g.color);
-},
-};
-const AREA_MARK = {
-build: (view, g, t, buffer) => view._buildAreaMark(g, t, buffer),
-draw: (view, g) => {
-const [x0, x1] = view._axisRange(g.xAxis);
-const [y0, y1] = view._axisRange(g.yAxis);
-const xm = view._map(g.xMeta, x0, x1, g.xAxis);
-const ym = view._map(g.yMeta, y0, y1, g.yAxis);
-view._drawArea(g, xm, ym, view._map(g.baseMeta, y0, y1, g.yAxis));
-if ((g.trace.style.line_width ?? 0) > 0) {
-view._drawLine(g, xm, ym, g.lineColor, g.trace.style.line_width, g.trace.style.line_opacity ?? 1);
-if (g.trace.style.stroke_perimeter) {
-const yBuf = g.yBuf, yMeta = g.yMeta, dashY = g._dashY;
-g.yBuf = g.baseBuf;
-g.yMeta = g.baseMeta;
-g._dashY = g._cpu.base;
-view._drawLine(g, xm, ym, g.lineColor, g.trace.style.line_width, g.trace.style.line_opacity ?? 1);
-g.yBuf = yBuf;
-g.yMeta = yMeta;
-g._dashY = dashY;
-}
-}
-},
-refreshColor: (view, g) => {
-g.color = parseColor(view.root, g.trace.style.color, g.color);
-g.lineColor = parseColor(view.root, g.trace.style.line_color || g.trace.style.color, g.lineColor || g.color);
-g.grad = view._resolveMarkFill(g.trace.style, g.color);
-},
-};
-const MESH_MARK = {
-build: (view, g, t, buffer) => view._buildMeshMark(g, t, buffer),
-draw: (view, g) => {
-const [x0, x1] = view._axisRange(g.xAxis);
-const [y0, y1] = view._axisRange(g.yAxis);
-view._drawMesh(g, view._map(g.x0Meta, x0, x1, g.xAxis), view._map(g.y0Meta, y0, y1, g.yAxis));
-},
-refreshColor: (view, g) => {
-if (g.colorMode === 0 && g.trace.color) g.color = parseColor(view.root, g.trace.color.color, g.color);
-const style = g.trace.style || {};
-g.meshStroke = parseColor(view.root, style.stroke || "transparent", [0, 0, 0, 0]);
-},
-};
-const MARK_KINDS = {
-histogram: RECT_MARK,
-box: RECT_MARK,
-violin: RECT_MARK,
-errorbar: SEGMENT_MARK,
-stem: SEGMENT_MARK,
-box_whisker: SEGMENT_MARK,
-box_median: SEGMENT_MARK,
-contour: SEGMENT_MARK,
-segments: SEGMENT_MARK,
-triangle_mesh: MESH_MARK,
-error_band: AREA_MARK,
-hexbin: {
-build: (view, g, t, buffer) => view._buildHexbinMark(g, t, buffer),
-draw: (view, g) => {
-const [x0, x1] = view._axisRange(g.xAxis);
-const [y0, y1] = view._axisRange(g.yAxis);
-view._drawMesh(g, view._map(g.x0Meta, x0, x1, g.xAxis), view._map(g.y0Meta, y0, y1, g.yAxis));
-},
-refreshColor: (view, g) => {
-if (g.colorMode === 0 && g.trace.color) g.color = parseColor(view.root, g.trace.color.color, g.color);
-const style = g.trace.style || {};
-g.meshStroke = parseColor(view.root, style.stroke || "transparent", [0, 0, 0, 0]);
-},
-},
-bar: BAR_MARK,
-column: BAR_MARK,
-heatmap: {
-build: (view, g, t, buffer) => view._buildHeatmapMark(g, t, buffer),
-draw: (view, g) => view._drawHeatmap(g),
-},
-scatter: {
-build: (view, g, t, buffer) => view._buildScatterMark(g, t, buffer),
-draw: (view, g) => {
-const [x0, x1] = view._axisRange(g.xAxis);
-const [y0, y1] = view._axisRange(g.yAxis);
-view._drawPoints(g, view._map(g.xMeta, x0, x1, g.xAxis), view._map(g.yMeta, y0, y1, g.yAxis));
-},
-pointPick: true,
-retainCpu: true,
-refreshColor: (view, g) => {
-if (g.colorMode === 0 && g.trace.color) {
-g.color = parseColor(view.root, g.trace.color.color, g.color);
-}
-view._pointMarkStyle(g, g.trace);
-},
-},
-line: {
-build: (view, g, t, buffer) => view._buildLineMark(g, t, buffer),
-draw: (view, g) => {
-const [x0, x1] = view._axisRange(g.xAxis);
-const [y0, y1] = view._axisRange(g.yAxis);
-view._drawLine(g, view._map(g.xMeta, x0, x1, g.xAxis), view._map(g.yMeta, y0, y1, g.yAxis));
-},
-refreshColor: (view, g) => {
-g.color = parseColor(view.root, g.trace.style.color, g.color);
-},
-},
-area: AREA_MARK,
-};
-function markOf(kind) {
-return MARK_KINDS[kind] || MARK_KINDS.scatter;
-}
-const XY_EASINGS = {
-linear: [0, 0, 1, 1],
-ease: [0.25, 0.1, 0.25, 1],
-"ease-in": [0.42, 0, 1, 1],
-"ease-out": [0, 0, 0.58, 1],
-"ease-in-out": [0.42, 0, 0.58, 1],
-};
-function xyCubicBezierProgress(value, points) {
-const x1 = Number(points[0]), y1 = Number(points[1]);
-const x2 = Number(points[2]), y2 = Number(points[3]);
-const sample = (t, a, b) => {
-const u = 1 - t;
-return 3 * u * u * t * a + 3 * u * t * t * b + t * t * t;
-};
-const slope = (t, a, b) => {
-const u = 1 - t;
-return 3 * u * u * a + 6 * u * t * (b - a) + 3 * t * t * (1 - b);
-};
-let t = value;
-for (let i = 0; i < 5; i++) {
-const d = slope(t, x1, x2);
-if (Math.abs(d) < 1e-6) break;
-t = Math.max(0, Math.min(1, t - (sample(t, x1, x2) - value) / d));
-}
-let lo = 0, hi = 1;
-for (let i = 0; i < 8; i++) {
-if (sample(t, x1, x2) < value) lo = t; else hi = t;
-t = (lo + hi) * 0.5;
-}
-return sample(t, y1, y2);
-}
-function xySpringProgress(value, policy) {
-const stiffness = Math.max(1e-6, Number(policy.stiffness) || 170);
-const damping = Math.max(1e-6, Number(policy.damping) || 26);
-const mass = Math.max(1e-6, Number(policy.mass) || 1);
-const w0 = Math.sqrt(stiffness / mass);
-const zeta = damping / (2 * Math.sqrt(stiffness * mass));
-const response = (progress) => {
-const time = progress * 6 / w0;
-if (zeta < 1) {
-const wd = w0 * Math.sqrt(1 - zeta * zeta);
-return 1 - Math.exp(-zeta * w0 * time) *
-(Math.cos(wd * time) + (zeta * w0 / wd) * Math.sin(wd * time));
-}
-return 1 - Math.exp(-w0 * time) * (1 + w0 * time);
-};
-const endpoint = response(1);
-const result = Math.abs(endpoint) > 1e-9 ? response(value) / endpoint : value;
-return Math.max(0, Math.min(1.15, result));
-}
-function xyAnimationEase(value, easing) {
-if (easing && typeof easing === "object" && !Array.isArray(easing) && easing.type === "spring") {
-return xySpringProgress(value, easing);
-}
-const points = Array.isArray(easing) ? easing : XY_EASINGS[easing] || XY_EASINGS["ease-out"];
-return xyCubicBezierProgress(value, points);
-}
-Object.assign(ChartView.prototype, {
-_resolvedAnimation(trace) {
-return {
-...(this.spec.animation || {}),
-...((trace && trace.animation) || {}),
-_present: !!this.spec.animation || !!(trace && trace.animation),
-};
-},
-_animationEnabled(config) {
-if (!config._present) return false;
-if (config.enabled === false) return false;
-if (config.enabled === true) return true;
-return !this._prefersReducedMotion();
-},
-_defaultEntrance(kind) {
-if (kind === "line" || kind === "area" || kind === "error_band") return "reveal";
-if (kind === "bar" || kind === "column") return "grow";
-if (kind === "scatter" || kind === "errorbar") return "scale";
-return "none";
-},
-_setTransitionVisual(g, phase, progress, config) {
-const p = Math.max(0, Math.min(1, progress));
-g._transitionOpacity = 1;
-g._transitionScale = 1;
-g._transitionReveal = 1;
-g._transitionGrow = 1;
-if (phase === "exit") {
-g._transitionOpacity = 0;
-return;
-}
-if (phase === "update") {
-g._transitionPositionProgress = p;
-return;
-}
-let enter = config.enter || "auto";
-if (enter === "auto") enter = this._defaultEntrance(g.trace.kind);
-if (enter === "none") return;
-if (enter === "scale") {
-if (g.trace.kind === "scatter") g._transitionScale = p;
-else if (g.trace.kind === "errorbar") g._transitionScale = p;
-else if (g.trace.kind === "bar" || g.trace.kind === "column") g._transitionGrow = p;
-else if (g.trace.kind === "line" || g.trace.kind === "area" ||
-g.trace.kind === "error_band") g._transitionReveal = p;
-}
-if (enter === "reveal") g._transitionReveal = p;
-if (enter === "grow") g._transitionGrow = p;
-},
-_clearTransitionVisual(g) {
-delete g._transitionOpacity;
-delete g._transitionScale;
-delete g._transitionReveal;
-delete g._transitionGrow;
-delete g._transitionPositionProgress;
-delete g._transitionPhase;
-delete g._transitionPrevXValues;
-delete g._transitionPrevYValues;
-delete g._transitionPrevPosValues;
-delete g._transitionPrevValue1Values;
-delete g._transitionPrevValue0Values;
-delete g._transitionPrevWidth;
-delete g._transitionPositionInterpolated;
-this._deleteBuffers(g, [
-"_transitionPrevXBuf", "_transitionPrevYBuf",
-"_transitionPrevPosBuf", "_transitionPrevValue1Buf", "_transitionPrevValue0Buf",
-]);
-},
-_emitAnimationLifecycle(stage, phase, extra = {}) {
-const detail = { stage, phase, ...extra, view: this._eventView(`animation_${stage}`) };
-this._dispatchChartEvent(`animation_${stage}`, detail);
-this.comm?.send?.({ type: `animation_${stage}`, phase, ...extra });
-},
-_runDataAnimation(phase, current, exiting = []) {
-if (this._dataAnimRaf) cancelAnimationFrame(this._dataAnimRaf);
-const epoch = (this._dataAnimEpoch || 0) + 1;
-this._dataAnimEpoch = epoch;
-const records = [];
-for (const g of current) {
-const config = this._resolvedAnimation(g.trace);
-const recordPhase = g._transitionPhase || phase;
-if (!this._animationEnabled(config) ||
-(recordPhase === "enter" && config.enter === "none") ||
-(recordPhase === "update" && config.update === "none")) {
-this._clearTransitionVisual(g);
-continue;
-}
-records.push({ g, config, phase: recordPhase, delay: Number(config.delay) || 0, duration: Math.max(0, Number(config.duration) || 0) });
-}
-for (const g of exiting) {
-g._transitionOpacity = 0;
-}
-if (!records.length) {
-for (const g of current) this._clearTransitionVisual(g);
-if (this._transitionView) {
-this.view = { ...this._transitionView.to };
-this._transitionView = null;
-}
-this._destroyTransitionOldTraces();
-this.draw();
-return false;
-}
-const start = this._now();
-this._dataAnim = { epoch, phase, start };
-this._emitAnimationLifecycle("start", phase);
-const tick = () => {
-if (this._destroyed || !this._dataAnim || this._dataAnim.epoch !== epoch) return;
-const now = this._now();
-let active = false;
-let maxRaw = 0;
-for (const record of records) {
-const raw = record.duration <= 0
-? (now >= start + record.delay ? 1 : 0)
-: Math.max(0, Math.min(1, (now - start - record.delay) / record.duration));
-if (this._transitionView) maxRaw = Math.max(maxRaw, raw);
-const eased = xyAnimationEase(raw, record.config.easing);
-this._setTransitionVisual(record.g, record.phase, eased, record.config);
-if (raw < 1) active = true;
-}
-if (this._transitionView) {
-const p = xyAnimationEase(maxRaw, (this.spec.animation || {}).easing);
-const from = this._transitionView.from, to = this._transitionView.to;
-this.view = {
-x0: from.x0 + (to.x0 - from.x0) * p,
-x1: from.x1 + (to.x1 - from.x1) * p,
-y0: from.y0 + (to.y0 - from.y0) * p,
-y1: from.y1 + (to.y1 - from.y1) * p,
-};
-}
-this.draw();
-if (active) {
-this._dataAnimRaf = requestAnimationFrame(tick);
-} else {
-this._dataAnimRaf = null;
-for (const record of records) this._clearTransitionVisual(record.g);
-this._finishDataAnimation(phase);
-}
-};
-this._dataAnimRaf = requestAnimationFrame(tick);
-return true;
-},
-_finishDataAnimation(phase) {
-this._dataAnim = null;
-if (this._transitionView) {
-this.view = { ...this._transitionView.to };
-this._transitionView = null;
-}
-this._destroyTransitionOldTraces();
-this._emitAnimationLifecycle("end", phase);
-},
-_startEntranceAnimation() {
-const capture = Number(this.spec.animation_capture_progress);
-if (Number.isFinite(capture) && capture >= 0 && capture <= 1) {
-for (const g of this.gpuTraces || []) {
-const config = this._resolvedAnimation(g.trace);
-if (config._present && config.enabled !== false && config.enter !== "none") {
-this._setTransitionVisual(g, "enter", xyAnimationEase(capture, config.easing), config);
-} else {
-this._clearTransitionVisual(g);
-}
-}
-this.draw();
-return;
-}
-this._runDataAnimation("enter", this.gpuTraces || []);
-},
-_destroyTransitionOldTraces() {
-if (!this._transitionOldTraces || !this.gl) {
-this._transitionOldTraces = null;
-return;
-}
-const seen = new Set();
-for (const g of this._transitionOldTraces) this._destroyTraceResources(g, seen);
-this._transitionOldTraces = null;
-},
-_transitionMatches(previous, next, config) {
-let strategy = config.match || "index";
-const pairs = [];
-let fallback = next.trace.animation_fallback || null;
-if ((previous.n || 0) > 200000 || (next.n || 0) > 200000) {
-return {
-strategy: "snap",
-pairs,
-fallback: fallback || `snap:${strategy}-match-limit`,
-};
-}
-if (strategy === "key") {
-if (previous._transitionKeyIndex && next._transitionKeys) {
-for (let ni = 0; ni < next._transitionKeys.length; ni++) {
-const oi = previous._transitionKeyIndex.get(next._transitionKeys[ni]);
-if (oi !== undefined) pairs.push([oi, ni]);
-}
-} else {
-fallback ||= "index:missing-keys";
-strategy = "index";
-}
-}
-if (strategy === "append") {
-const oldX = previous._cpu && previous._cpu.x;
-const newX = next._cpu && next._cpu.x;
-if (oldX && newX && oldX.length <= 200000 && newX.length <= 200000) {
-const index = new Map();
-for (let i = 0; i < oldX.length; i++) {
-const value = this._decodeValue(oldX, previous.xMeta, i);
-if (Number.isFinite(value)) index.set(value.toPrecision(12), i);
-}
-for (let i = 0; i < newX.length; i++) {
-const value = this._decodeValue(newX, next.xMeta, i);
-const oi = Number.isFinite(value) ? index.get(value.toPrecision(12)) : undefined;
-if (oi !== undefined) pairs.push([oi, i]);
-}
-} else {
-fallback ||= "index:append-limit";
-strategy = "index";
-}
-}
-if (strategy === "index") {
-const count = Math.min(previous.n || 0, next.n || 0);
-for (let i = 0; i < count; i++) pairs.push([i, i]);
-}
-return {
-strategy,
-pairs,
-fallback,
-};
-},
-_recordAnimationFallback(trace, fallback) {
-if (!trace || !fallback) return;
-trace.animation_fallback = fallback;
-if (this.root && this.root.dataset) {
-this.root.dataset.xyAnimationFallback = fallback;
-}
-},
-_preparePositionInterpolation(previous, next, config) {
-const match = next._transitionMatch;
-const policies = config.interpolate || [];
-if (config.update !== "interpolate" || !policies.includes("position") || !match) return false;
-if (["bar", "column"].includes(next.trace.kind)) {
-return this._prepareBarPositionInterpolation(previous, next, match);
-}
-if (!["scatter", "line"].includes(next.trace.kind)) return false;
-if (!previous._cpu || !next._cpu || next.n !== next._cpu.x.length ||
-previous.n !== previous._cpu.x.length) {
-match.fallback ||= "snap:layout-mismatch";
-return false;
-}
-const startX = new Float32Array(next._cpu.x);
-const startY = new Float32Array(next._cpu.y);
-const encode = (value, meta) => (value - (Number(meta.offset) || 0)) * (Number(meta.scale) || 1);
-const displayedValue = (axis, index) => {
-const cpu = previous._cpu[axis];
-const starts = previous[axis === "x" ? "_transitionPrevXValues" : "_transitionPrevYValues"];
-const progress = previous._transitionPositionProgress;
-if (!starts || !Number.isFinite(progress)) {
-return this._decodeValue(cpu, previous[`${axis}Meta`], index);
-}
-const encoded = starts[index] + (cpu[index] - starts[index]) * progress;
-const meta = previous[`${axis}Meta`];
-return encoded / (meta.scale || 1) + meta.offset;
-};
-for (const [oldIndex, newIndex] of match.pairs) {
-const x = displayedValue("x", oldIndex);
-const y = displayedValue("y", oldIndex);
-if (Number.isFinite(x) && Number.isFinite(y)) {
-startX[newIndex] = encode(x, next.xMeta);
-startY[newIndex] = encode(y, next.yMeta);
-}
-}
-next._transitionPrevXBuf = this._upload(startX);
-next._transitionPrevYBuf = this._upload(startY);
-next._transitionPrevXValues = startX;
-next._transitionPrevYValues = startY;
-next._transitionPositionProgress = 0;
-next._transitionPositionInterpolated = true;
-previous._transitionSkipExit = true;
-return true;
-},
-_prepareBarPositionInterpolation(previous, next, match) {
-const oldBar = previous._cpuBar;
-const newBar = next._cpuBar;
-if (!oldBar || !newBar || previous.orientation !== next.orientation ||
-next.n !== newBar.pos.length || previous.n !== oldBar.pos.length) {
-match.fallback ||= "snap:layout-mismatch";
-return false;
-}
-const startPos = new Float32Array(newBar.pos);
-const startValue1 = new Float32Array(newBar.value1);
-const startValue0 = new Float32Array(next.n);
-const encode = (value, meta) => (value - (Number(meta.offset) || 0)) * (Number(meta.scale) || 1);
-const decode = (value, meta) => value / (Number(meta.scale) || 1) + (Number(meta.offset) || 0);
-const value0At = (bar, index) => bar.value0
-? decode(bar.value0[index], bar.value0Meta)
-: Number(bar.value0Const) || 0;
-const displayed = (values, current, meta, index) => {
-const progress = previous._transitionPositionProgress;
-if (!values || !Number.isFinite(progress)) return decode(current[index], meta);
-return decode(values[index] + (current[index] - values[index]) * progress, meta);
-};
-const displayedValue0 = (index) => {
-const starts = previous._transitionPrevValue0Values;
-const progress = previous._transitionPositionProgress;
-const current = value0At(oldBar, index);
-if (!starts || !Number.isFinite(progress)) return current;
-const start = decode(starts[index], oldBar.value1Meta);
-return start + (current - start) * progress;
-};
-for (let i = 0; i < next.n; i++) {
-startValue0[i] = encode(value0At(newBar, i), newBar.value1Meta);
-}
-for (const [oldIndex, newIndex] of match.pairs) {
-const pos = displayed(
-previous._transitionPrevPosValues,
-oldBar.pos,
-oldBar.posMeta,
-oldIndex
-);
-const value1 = displayed(
-previous._transitionPrevValue1Values,
-oldBar.value1,
-oldBar.value1Meta,
-oldIndex
-);
-const value0 = displayedValue0(oldIndex);
-if (Number.isFinite(pos) && Number.isFinite(value0) && Number.isFinite(value1)) {
-startPos[newIndex] = encode(pos, newBar.posMeta);
-startValue1[newIndex] = encode(value1, newBar.value1Meta);
-startValue0[newIndex] = encode(value0, newBar.value1Meta);
-}
-}
-const progress = previous._transitionPositionProgress;
-const previousWidth = Number.isFinite(previous._transitionPrevWidth) && Number.isFinite(progress)
-? previous._transitionPrevWidth + (oldBar.width - previous._transitionPrevWidth) * progress
-: oldBar.width;
-next._transitionPrevPosBuf = this._upload(startPos);
-next._transitionPrevValue1Buf = this._upload(startValue1);
-next._transitionPrevValue0Buf = this._upload(startValue0);
-next._transitionPrevPosValues = startPos;
-next._transitionPrevValue1Values = startValue1;
-next._transitionPrevValue0Values = startValue0;
-next._transitionPrevWidth = previousWidth;
-next._transitionPositionProgress = 0;
-next._transitionPositionInterpolated = true;
-previous._transitionSkipExit = true;
-return true;
-},
-updatePayload(spec, buffer) {
-if (this._destroyed || !spec || spec.protocol !== PROTOCOL) return false;
-if (this._dataAnimRaf) cancelAnimationFrame(this._dataAnimRaf);
-this._dataAnimRaf = null;
-if (this._dataAnim) {
-this._emitAnimationLifecycle("end", this._dataAnim.phase, { cancelled: true });
-}
-this._dataAnim = null;
-this._destroyTransitionOldTraces();
-const previous = this.gpuTraces || [];
-const fromView = { ...this.view };
-this.spec = spec;
-this.interaction = spec.interaction || {};
-this.markStyle = spec.mark_style || {};
-this.axes = this._normalizeAxes(spec);
-this._payload = buffer;
-this.view0 = undefined;
-this.view0 = this._clampView({
-ranges: Object.fromEntries(
-Object.entries(this.axes).map(([id, axis]) => [id, [...axis.range]]),
-),
-});
-const target = { ...this.view0 };
-if (this._glLost || !this.gl) {
-this.view = { ...target };
-return true;
-}
-this.gpuTraces = spec.traces.map((trace) => this._buildTrace(buffer, trace));
-for (const next of this.gpuTraces) {
-const old = previous.find((candidate) => candidate.trace.id === next.trace.id && candidate.trace.kind === next.trace.kind);
-if (old) {
-const config = this._resolvedAnimation(next.trace);
-old._transitionExitTrace = next.trace;
-if (this._animationEnabled(config) && config.update !== "none") {
-next._transitionMatch = this._transitionMatches(old, next, config);
-this._preparePositionInterpolation(old, next, config);
-old._transitionSkipExit = true;
-this._recordAnimationFallback(next.trace, next._transitionMatch.fallback);
-}
-} else {
-next._transitionPhase = "enter";
-}
-}
-this._transitionOldTraces = previous;
-const animateDomain = this.gpuTraces.some((g) => {
-const config = this._resolvedAnimation(g.trace);
-return this._animationEnabled(config) && config.update === "interpolate" &&
-(config.interpolate || []).includes("domain");
-});
-this._transitionView = animateDomain ? { from: fromView, to: target } : null;
-if (!animateDomain) this.view = { ...target };
-this._updatePickable();
-if (!this._runDataAnimation("update", this.gpuTraces, previous)) {
-this.view = { ...target };
-this._transitionView = null;
-}
-return true;
-},
-});
-const XY_HISTORY_CAPACITY = 64;
-Object.assign(ChartView.prototype, {
-_initViewState() {
-this._historyPast = [];
-this._historyFuture = [];
-this._historyLastInteractionId = null;
-this._stateSelection = null;
-this._customTooltip = null;
-this.root.xy = {
-applyState: (patch, opts = {}) => this._applyStatePatch(patch, {
-source: "api",
-animate: opts.animate === true,
-history: opts.history !== false,
-}),
-state: () => this._durableState(),
-back: () => this._historyBack(),
-forward: () => this._historyForward(),
-};
-},
-_durableState() {
-const ranges = Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId)]])
-);
-const sel = this._stateSelection;
-const selection = sel === null || sel === undefined
-? null
-: sel.rows
-? { rows: true }
-: sel.range
-? { range: { ...sel.range } }
-: { polygon: sel.polygon.map((point) => [...point]) };
-return { v: 1, ranges, selection };
-},
-_validateStatePatch(patch) {
-if (!patch || typeof patch !== "object" || Array.isArray(patch)) {
-return "state patch must be an object";
-}
-if (patch.v !== undefined && patch.v !== 1) {
-return `unsupported state version ${patch.v}`;
-}
-for (const key of Object.keys(patch)) {
-if (!["v", "ranges", "selection"].includes(key)) return `unknown key ${key}`;
-}
-if (patch.ranges !== undefined) {
-if (!patch.ranges || typeof patch.ranges !== "object" || Array.isArray(patch.ranges)) {
-return "ranges must be an object";
-}
-const declared = new Set(this._axisIds());
-for (const [axisId, range] of Object.entries(patch.ranges)) {
-if (!declared.has(axisId)) return `unknown axis ${axisId}`;
-if (!Array.isArray(range) || range.length !== 2
-|| !range.every((v) => Number.isFinite(v)) || range[0] === range[1]) {
-return `invalid range for axis ${axisId}`;
-}
-}
-}
-if (patch.selection !== undefined && patch.selection !== null) {
-const sel = patch.selection;
-if (typeof sel !== "object" || Array.isArray(sel)) return "invalid selection";
-const keys = Object.keys(sel);
-if (keys.length !== 1) return "invalid selection";
-if (keys[0] === "range") {
-const r = sel.range;
-if (!r || typeof r !== "object"
-|| !["x0", "x1", "y0", "y1"].every((k) => Number.isFinite(r[k]))) {
-return "invalid selection range";
-}
-} else if (keys[0] === "polygon") {
-const p = sel.polygon;
-if (!Array.isArray(p) || p.length < 3
-|| !p.every((pt) => Array.isArray(pt) && pt.length === 2
-&& pt.every(Number.isFinite))) {
-return "invalid selection polygon";
-}
-} else if (keys[0] === "rows") {
-return "rows selections are not applicable state";
-} else {
-return "invalid selection";
-}
-}
-return null;
-},
-_applyStatePatch(patch, opts = {}) {
-if (this._destroyed) return false;
-const error = this._validateStatePatch(patch);
-if (error) {
-if (typeof console !== "undefined" && console.warn) {
-console.warn(`xy: state patch rejected: ${error}`);
-}
-return false;
-}
-const source = opts.source || "api";
-const interactionId = ++this._interactionSeq;
-if (patch.ranges !== undefined) {
-const ranges = Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId)]])
-);
-for (const [axisId, range] of Object.entries(patch.ranges)) {
-ranges[axisId] = [Number(range[0]), Number(range[1])];
-}
-this._setView({ ranges }, {
-animate: opts.animate === true,
-source,
-phase: "end",
-interactionId,
-history: opts.history,
-});
-}
-if (patch.selection !== undefined) {
-const sel = patch.selection;
-const selOpts = { history: opts.history, interactionId, source };
-if (sel === null) {
-this._clearSelection(selOpts);
-} else if (sel.range) {
-const { x0, x1, y0, y1 } = sel.range;
-this._sendSelect([x0, y0], [x1, y1], selOpts);
-} else if (sel.polygon) {
-this._sendSelectPolygon(sel.polygon.map((point) => [...point]), selOpts);
-}
-}
-return true;
-},
-_historyEnabled() {
-return this._interactionFlag("history", true);
-},
-_historyRecord(opts = {}) {
-if (!this._historyPast || !this._historyEnabled() || this._destroyed) return;
-if (opts.history === false) return;
-if (opts.source === "linked" || opts.source === "history") return;
-const id = opts.interactionId;
-if (id !== undefined && id !== null && id === this._historyLastInteractionId) return;
-this._historyLastInteractionId = id === undefined ? null : id;
-this._historyPast.push(this._durableState());
-if (this._historyPast.length > XY_HISTORY_CAPACITY) this._historyPast.shift();
-this._historyFuture.length = 0;
-this._updateHistoryButtons();
-},
-_historyBack() {
-if (!this._historyEnabled() || !this._historyPast.length) return false;
-const snapshot = this._historyPast.pop();
-this._historyFuture.push(this._durableState());
-this._historyApply(snapshot);
-return true;
-},
-_historyForward() {
-if (!this._historyEnabled() || !this._historyFuture.length) return false;
-const snapshot = this._historyFuture.pop();
-this._historyPast.push(this._durableState());
-this._historyApply(snapshot);
-return true;
-},
-_historyApply(snapshot) {
-const patch = { v: 1, ranges: snapshot.ranges };
-if (!snapshot.selection || !snapshot.selection.rows) {
-patch.selection = snapshot.selection ?? null;
-}
-this._applyStatePatch(patch, { source: "history", animate: true, history: false });
-this._historyLastInteractionId = null;
-this._updateHistoryButtons();
-},
-_updateHistoryButtons() {
-const set = (btn, enabled) => {
-if (!btn) return;
-btn.disabled = !enabled;
-btn.setAttribute("aria-disabled", String(!enabled));
-btn.style.opacity = enabled ? "" : "0.4";
-};
-set(this._historyBackBtn, this._historyPast.length > 0);
-set(this._historyForwardBtn, this._historyFuture.length > 0);
-},
-_navReset(axes) {
-const override = Array.isArray(axes)
-? axes.filter((axisId) => this._axisIds().includes(axisId))
-: null;
-this._resetView(true, "reset", override);
-},
-_applyRowsSelection(msg, buffers) {
-this._clearLassoOverlay();
-for (const g of this.gpuTraces) {
-g.selActive = false;
-if (g.drill) g.drill.selActive = false;
-}
-this._lastBrush = null;
-this._applySelectionBuffers(msg, buffers);
-this._stateSelection = { rows: true };
-this._selectionCount = msg.total || 0;
-this.draw();
-if (this._interactionFlag("select", true)) {
-this._dispatchChartEvent("select", {
-total: this._selectionCount,
-view: this._eventView("select"),
-});
-}
-},
-_axisBandNavigable(axisId) {
-if (!this._interactionFlag("navigation", true)) return false;
-const pan = this._interactionFlag("pan", true)
-&& this._axisPolicy("pan_axes").includes(axisId);
-const zoom = this._interactionFlag("zoom", true)
-&& this._axisPolicy("zoom_axes").includes(axisId);
-return pan || zoom;
-},
-_axisBandCursor(axisId, dim) {
-const zoom = this._interactionFlag("zoom", true)
-&& this._axisPolicy("zoom_axes").includes(axisId);
-if (zoom) return dim === "x" ? "ew-resize" : "ns-resize";
-return "grab";
-},
-_initAxisBands() {
-if (!this.root) return;
-this._axisBands = {};
-for (const axisId of this._axisIds()) {
-if (!this._axisBandNavigable(axisId)) continue;
-const dim = this._axisDim(axisId);
-const band = document.createElement("div");
-band.dataset.xyAxisBand = axisId;
-band.style.cssText =
-"position:absolute;z-index:2;touch-action:none;" +
-`cursor:${this._axisBandCursor(axisId, dim)};`;
-this.root.appendChild(band);
-this._axisBands[axisId] = band;
-this._bindAxisBand(band, axisId, dim);
-}
-this._layoutAxisBands();
-},
-_layoutAxisBands() {
-if (!this._axisBands) return;
-const OUT = 24;
-const IN = 6;
-for (const [axisId, band] of Object.entries(this._axisBands)) {
-const dim = this._axisDim(axisId);
-const side = this._axis(axisId).side;
-if (dim === "x") {
-band.style.left = `${this.plot.x}px`;
-band.style.width = `${this.plot.w}px`;
-if (side === "top") {
-band.style.top = `${Math.max(0, this.plot.y - OUT)}px`;
-band.style.height = `${OUT + IN}px`;
-} else {
-band.style.top = `${this.plot.y + this.plot.h - IN}px`;
-band.style.height = `${IN + OUT}px`;
-}
-} else {
-band.style.top = `${this.plot.y}px`;
-band.style.height = `${this.plot.h}px`;
-if (side === "right") {
-band.style.left = `${this.plot.x + this.plot.w - IN}px`;
-band.style.width = `${IN + OUT}px`;
-} else {
-band.style.left = `${Math.max(0, this.plot.x - OUT)}px`;
-band.style.width = `${OUT + IN}px`;
-}
-}
-}
-},
-_axisBandValue(axisId, clientX, clientY) {
-const rect = this.canvas.getBoundingClientRect();
-const dim = this._axisDim(axisId);
-if (dim === "x") {
-const cssX = Math.max(0, Math.min(rect.width, clientX - rect.left));
-return this._dataFromCanvas(cssX, 0, axisId, "y")[0];
-}
-const cssY = Math.max(0, Math.min(rect.height, clientY - rect.top));
-return this._dataFromCanvas(0, cssY, "x", axisId)[1];
-},
-_bindAxisBand(band, axisId, dim) {
-let drag = null;
-this._listen(band, "wheel", (e) => {
-if (!this._interactionFlag("navigation", true)) return;
-if (!this._interactionFlag("zoom", true)) return;
-if (!this._interactionFlag("wheel_zoom", true)) return;
-if (!this._axisPolicy("zoom_axes").includes(axisId)) return;
-e.preventDefault();
-const factor = Math.pow(1.0015, e.deltaY);
-const rect = this.canvas.getBoundingClientRect();
-const fx = (e.clientX - rect.left) / rect.width;
-const fy = 1 - (e.clientY - rect.top) / rect.height;
-this._queueWheelZoom(factor, fx, fy, [axisId]);
-}, { passive: false });
-this._listen(band, "pointerdown", (e) => {
-if (e.pointerType === "mouse" && e.button !== 0) return;
-if (!this._interactionFlag("navigation", true)) return;
-this._cancelViewAnimation();
-drag = {
-pointerId: e.pointerId,
-sx: e.clientX,
-sy: e.clientY,
-view: this._copyView(this.view),
-d0: this._axisBandValue(axisId, e.clientX, e.clientY),
-mode: null,
-interactionId: ++this._interactionSeq,
-changedAxes: [],
-};
-try { band.setPointerCapture(e.pointerId); } catch (_err) {   }
-this.tooltip.style.display = "none";
-e.preventDefault();
-});
-const canBandPan = () =>
-this._interactionFlag("pan", true) && this._axisPolicy("pan_axes").includes(axisId)
-? true
-: this._axisContained(axisId);
-const canBandSpanZoom = () =>
-this._interactionFlag("zoom", true)
-&& this._interactionFlag("box_zoom", true)
-&& this._axisPolicy("zoom_axes").includes(axisId);
-this._listen(band, "pointermove", (e) => {
-if (!drag || e.pointerId !== drag.pointerId) return;
-const dx = e.clientX - drag.sx;
-const dy = e.clientY - drag.sy;
-if (!drag.mode) {
-if (Math.hypot(dx, dy) <= 3) return;
-const parallel = dim === "x" ? dx : dy;
-const perpendicular = dim === "x" ? dy : dx;
-const wantPan = Math.abs(parallel) >= Math.abs(perpendicular);
-drag.mode = wantPan
-? (canBandPan() ? "pan" : canBandSpanZoom() ? "span" : "none")
-: (canBandSpanZoom() ? "span" : canBandPan() ? "pan" : "none");
-if (drag.mode === "pan") band.style.cursor = "grabbing";
-}
-if (drag.mode === "pan") {
-const ranges = Object.fromEntries(
-this._axisIds().map((id) => [id, [...this._axisRange(id, drag.view)]])
-);
-const axis = this._axis(axisId);
-const [lo, hi] = this._axisRange(axisId, drag.view);
-const c0 = this._axisCoord(axis, lo), c1 = this._axisCoord(axis, hi);
-if (![c0, c1].every(Number.isFinite) || c0 === c1) return;
-const pixels = dim === "x" ? this.plot.w : this.plot.h;
-const deltaPx = dim === "x" ? dx : dy;
-const delta = (deltaPx / pixels) * (c1 - c0);
-const signed = dim === "x" ? -delta : delta;
-ranges[axisId] = [
-this._axisValue(axis, c0 + signed),
-this._axisValue(axis, c1 + signed),
-];
-const changed = this._setView({ ranges }, {
-source: "pan_drag",
-phase: "update",
-interactionId: drag.interactionId,
-});
-drag.changedAxes = [...new Set([...drag.changedAxes, ...changed])];
-} else if (drag.mode === "span") {
-const rootRect = this.root.getBoundingClientRect();
-this.selRect.dataset.xyBand = "zoom";
-this.selRect.style.display = "block";
-if (dim === "x") {
-const a = Math.max(this.plot.x, Math.min(
-this.plot.x + this.plot.w,
-Math.min(drag.sx, e.clientX) - rootRect.left));
-const b = Math.max(this.plot.x, Math.min(
-this.plot.x + this.plot.w,
-Math.max(drag.sx, e.clientX) - rootRect.left));
-this.selRect.style.left = `${a}px`;
-this.selRect.style.width = `${Math.max(0, b - a)}px`;
-this.selRect.style.top = `${this.plot.y}px`;
-this.selRect.style.height = `${this.plot.h}px`;
-} else {
-const a = Math.max(this.plot.y, Math.min(
-this.plot.y + this.plot.h,
-Math.min(drag.sy, e.clientY) - rootRect.top));
-const b = Math.max(this.plot.y, Math.min(
-this.plot.y + this.plot.h,
-Math.max(drag.sy, e.clientY) - rootRect.top));
-this.selRect.style.top = `${a}px`;
-this.selRect.style.height = `${Math.max(0, b - a)}px`;
-this.selRect.style.left = `${this.plot.x}px`;
-this.selRect.style.width = `${this.plot.w}px`;
-}
-}
-e.preventDefault();
-});
-const end = (e) => {
-if (!drag || e.pointerId !== drag.pointerId) return;
-const finished = drag;
-drag = null;
-band.style.cursor = this._axisBandCursor(axisId, dim);
-if (finished.mode === "span") this.selRect.style.display = "none";
-if (e.type === "pointercancel") return;
-if (finished.mode === "pan" && finished.changedAxes.length) {
-this._emitViewChange("pan_drag", {
-axes: finished.changedAxes,
-phase: "end",
-interactionId: finished.interactionId,
-});
-} else if (finished.mode === "span") {
-const d1 = this._axisBandValue(axisId, e.clientX, e.clientY);
-const axis = this._axis(axisId);
-const a = this._axisCoord(axis, finished.d0);
-const b = this._axisCoord(axis, d1);
-const minSpan = Math.max(Math.abs(a), Math.abs(b), 1e-30) * 1e-12;
-if (![a, b].every(Number.isFinite) || Math.abs(b - a) < minSpan) return;
-const [lo, hi] = this._axisRange(axisId);
-const reverse = this._axisCoord(axis, hi) < this._axisCoord(axis, lo);
-const low = Math.min(a, b), high = Math.max(a, b);
-const ranges = Object.fromEntries(
-this._axisIds().map((id) => [id, [...this._axisRange(id)]])
-);
-ranges[axisId] = [
-this._axisValue(axis, reverse ? high : low),
-this._axisValue(axis, reverse ? low : high),
-];
-this._setView({ ranges }, {
-animate: true,
-anchors: { [axisId]: 0.5 },
-source: "box_zoom",
-phase: "end",
-interactionId: finished.interactionId,
-});
-}
-};
-this._listen(band, "pointerup", end);
-this._listen(band, "pointercancel", end);
-},
-_seriesColorCss(g) {
-const c = g && g.color;
-if (!Array.isArray(c) || c.length < 3) return null;
-const channel = (v) => Math.max(0, Math.min(255, Math.round(Number(v) * 255)));
-return `rgb(${channel(c[0])}, ${channel(c[1])}, ${channel(c[2])})`;
-},
-_hoverPayload(row, hit, clientX, clientY, exact = false) {
-const rootRect = this.root.getBoundingClientRect();
-const canvasRect = this.canvas.getBoundingClientRect();
-const cssX = Math.max(0, Math.min(canvasRect.width, clientX - canvasRect.left));
-const cssY = Math.max(0, Math.min(canvasRect.height, clientY - canvasRect.top));
-const data = {};
-for (const axisId of this._axisIds()) {
-const dim = this._axisDim(axisId);
-const [x, y] = this._dataFromCanvas(
-cssX, cssY,
-dim === "x" ? axisId : "x",
-dim === "y" ? axisId : "y",
-);
-data[axisId] = dim === "x" ? x : y;
-}
-const g = hit && hit.g;
-const points = row ? [{
-trace: (g && g.trace && g.trace.name) || row.trace,
-index: row.index,
-row,
-x_axis: (g && g.xAxis) || "x",
-y_axis: (g && g.yAxis) || "y",
-color: this._seriesColorCss(g),
-}] : [];
-const payload = {
-active: true,
-cursor: {
-px: [clientX - rootRect.left, clientY - rootRect.top],
-data,
-},
-points,
-};
-if (exact) payload.exact = true;
-return payload;
-},
-setCustomTooltip(el) {
-if (!this.tooltip) return;
-if (!el) {
-this._customTooltip = null;
-delete this.tooltip.dataset.xyCustomTooltip;
-this.tooltip.style.background = "";
-this.tooltip.style.border = "";
-this.tooltip.style.padding = "";
-this.tooltip.replaceChildren();
-this.tooltip.style.display = "none";
-return;
-}
-this._customTooltip = el;
-this.tooltip.dataset.xyCustomTooltip = "";
-this.tooltip.style.background = "transparent";
-this.tooltip.style.border = "none";
-this.tooltip.style.padding = "0";
-el.style.display = "";
-this.tooltip.replaceChildren(el);
-},
-});
-function bytesToSpan(b) {
-const span = xyByteSpan(b, "chart payload");
-return span.byteOffset % 4 === 0 ? span : new Uint8Array(span);
-}
-
-function payloadBuffers(spec, raw) {
-if (spec.buffer_layout === "split") {
-if (!Array.isArray(raw)) {
-throw new Error("xy: spec says buffer_layout=split but the transport delivered one buffer");
-}
-return raw.map(bytesToSpan);
-}
-if (Array.isArray(raw)) {
-throw new Error("xy: transport delivered a buffer list but the spec is not split-layout");
-}
-return bytesToSpan(raw);
-}
-function render({ model, el }) {
-const spec = model.get("spec");
-const buffer = payloadBuffers(spec, model.get("buffers"));
-const comm = {
-send: (msg) => model.send(msg),
-wantsViewChange: () => spec.interaction?._transport_view_change === true,
-onMessage: (cb) => {
-const handler = (content, buffers) => cb(content, buffers);
-model.on("msg:custom", handler);
-return () => model.off?.("msg:custom", handler);
-},
-};
-const view = new ChartView(el, spec, buffer, comm);
-return () => view.destroy();
-}
-
-function renderStandalone(el, spec, arrayBuffer) {
-const buffer = bytesToSpan(arrayBuffer);
-const view = new ChartView(el, spec, buffer, null);
-const column = (idx) => view._columnView(buffer, spec.columns[idx]);
-for (const g of view.gpuTraces) {
-if (markOf(g.trace.kind).retainCpu && g.tier !== "density") {
-g._cpu = {
-x: column(g.trace.x),
-y: column(g.trace.y),
-xMeta: g.xMeta,
-yMeta: g.yMeta,
-};
-if (g.trace.color && Number.isInteger(g.trace.color.buf)) {
-g._cpu.color = column(g.trace.color.buf);
-}
-if (g.trace.size && Number.isInteger(g.trace.size.buf)) {
-g._cpu.size = column(g.trace.size.buf);
-}
-}
-}
-return view;
-}
-
-export { render, renderStandalone, decodeFrame, ChartView, MARK_KINDS, markOf };
-export default { render, decodeFrame };
+`;function mt(){try{let e=URL.createObjectURL(new Blob([pt],{type:`application/javascript`})),t=new Worker(e);return t._fcUrl=e,t}catch{return null}}Object.assign(Q.prototype,{_scheduleViewRequest(e=this.view,t={}){if(this._destroyed||this._glLost)return;if(!this.comm){this._scheduleSampleRebin(e,t);return}let n=this.spec.traces.some(e=>e.tier===`decimated`),r=this.gpuTraces.some(e=>e.tier===`density`);if(!n&&!r)return;let i=t.seq??++this.seq,a=this._copyView(e),o=Math.round(this.plot.w),s=Math.round(this.plot.h);if(r){let e=this._now();for(let t of this.gpuTraces)t.tier===`density`&&(t._lodPendingView=a,t._lodPendingSeq=i,t._lodPendingAt=e)}let c=t.delay??120;if(t.maxWait!==void 0&&t.maxWait!==null){let e=this._now();(this._viewRequestBurstStart===void 0||this._viewRequestBurstStart===null)&&(this._viewRequestBurstStart=e);let n=t.maxWait-(e-this._viewRequestBurstStart);c=n<=0?0:Math.min(c,n)}else this._viewRequestBurstStart=null;clearTimeout(this._viewTimer);let l=()=>{if(!this._destroyed&&(this._viewRequestBurstStart=null,i===this.seq&&(n&&this.comm.send({type:`view`,seq:i,x0:Math.min(a.x0,a.x1),x1:Math.max(a.x0,a.x1),px:o}),r)))for(let e of this.gpuTraces){if(e.tier!==`density`)continue;let[t,n]=this._axisRange(e.xAxis,a),[r,c]=this._axisRange(e.yAxis,a);this.comm.send({type:`density_view`,seq:i,trace:e.trace.id,x0:Math.min(t,n),x1:Math.max(t,n),y0:Math.min(r,c),y1:Math.max(r,c),w:o,h:s})}};return c<=0?l():this._viewTimer=setTimeout(l,c),i},_scheduleSampleRebin(e=this.view,t={}){if(this._destroyed||this._glLost||this._sampleRebinDisabled)return;let n=(this.gpuTraces||[]).filter(e=>e.tier===`density`&&e.sampleOverlay&&e.sampleOverlay._cpu);if(!n.length)return;let r=t.seq??++this.seq,i=this._copyView(e);clearTimeout(this._rebinTimer),this._rebinTimer=setTimeout(()=>{if(!(this._destroyed||r!==this.seq))for(let e of n)this._requestSampleRebin(e,i,r)},t.delay??120)},_requestSampleRebin(e,t,n){e._homeDensity||=e.density;let[r,i]=this._axisRange(e.xAxis,t),[a,o]=this._axisRange(e.yAxis,t),[s,c]=this._axisRange(e.xAxis,this.view0),[l,u]=this._axisRange(e.yAxis,this.view0),d=Math.max(Math.abs(c-s),1e-300),f=Math.max(Math.abs(u-l),1e-300),p=Math.abs(i-r),m=Math.abs(o-a);if(p>=d*.999999&&m>=f*.999999){if(e.density!==e._homeDensity){let t=e._homeDensity;this._applySampleRebinGrid(e,{...t,tex:this._uploadGrid(t.grid,t.w,t.h,t.normMax||t.max||1)},!1)}return}if(!this._sampleRebinDisabled){if(!this._rebinWorker){if(this._rebinWorker=mt(),!this._rebinWorker){this._sampleRebinDisabled=!0;return}this._rebinWorker.onmessage=e=>this._onRebinResult(e.data),this._rebinInit=new Set}if(!this._rebinInit.has(e.trace.id)){let t=e.sampleOverlay._cpu,n=Math.min(t.x.length,t.y.length),r=new Float64Array(n),i=new Float64Array(n);for(let e=0;e<n;e++)r[e]=this._decodeValue(t.x,t.xMeta,e),i[e]=this._decodeValue(t.y,t.yMeta,e);this._rebinWorker.postMessage({type:`init`,trace:e.trace.id,x:r.buffer,y:i.buffer},[r.buffer,i.buffer]),this._rebinInit.add(e.trace.id)}this._rebinWorker.postMessage({type:`rebin`,trace:e.trace.id,seq:n,x0:Math.min(r,i),x1:Math.max(r,i),y0:Math.min(a,o),y1:Math.max(a,o),w:Math.max(16,Math.min(2048,Math.round(this.plot.w))),h:Math.max(16,Math.min(2048,Math.round(this.plot.h)))})}},_onRebinResult(e){if(this._destroyed||this._glLost||!e||e.type!==`grid`||e.seq!==this.seq)return;let t=this.gpuTraces.find(t=>t.trace.id===e.trace&&t.tier===`density`);if(!t)return;let n=new Float32Array(e.grid);this._applySampleRebinGrid(t,{w:e.w,h:e.h,max:e.max,normMax:e.max,colormap:t.density.colormap,xRange:[e.x0,e.x1],yRange:[e.y0,e.y1],grid:n,tex:this._uploadGrid(n,e.w,e.h,e.max||1),lut:t.density.lut},!0)},_applySampleRebinGrid(e,t,n){e.prevDensity=e.density,e._densityFadeStart=this._now(),e.densityNormMax=t.normMax||t.max,e.density=t,e._sampleRebinned=!!n,V(this,e,e.density),this._refreshReductionBadges(),this.draw()},_applyAppend(e,t){let n=e.spec,r=t&&t[0];if(!n||!r||!n.traces)return;let i=o(r),a=(e,t)=>Math.max(Math.abs(t-e),1e-300)*1e-9,s=a(this.view0.x0,this.view0.x1),c=a(this.view0.y0,this.view0.y1),l=Math.abs(this.view.x0-this.view0.x0)<=s&&Math.abs(this.view.x1-this.view0.x1)<=s&&Math.abs(this.view.y0-this.view0.y0)<=c&&Math.abs(this.view.y1-this.view0.y1)<=c,u=!l&&Math.abs(this.view.x1-this.view0.x1)<=s,d={x0:n.x_axis.range[0],x1:n.x_axis.range[1],y0:n.y_axis.range[0],y1:n.y_axis.range[1]},f={...this.view};if(l)f={...d};else if(u){let e=this.view.x1-this.view.x0;f={...this.view,x1:d.x1,x0:d.x1-e}}if((n.animation||n.traces.some(e=>!!e.animation))&&!this._glLost&&this.gl&&this.updatePayload(n,i)){this._transitionView?this._transitionView.to={...f}:this.view={...f},this._scheduleViewRequest(f,{delay:0});return}if(this.spec=n,this.axes=this._normalizeAxes(n),this._payload=i,this.view0=this._copyView({ranges:Object.fromEntries(Object.entries(this.axes).map(([e,t])=>[e,[...t.range]]))}),l)this.view=this._copyView(this.view0);else if(u){let e=this.view.x1-this.view.x0;this.view=this._viewFrom({x1:this.view0.x1,x0:this.view0.x1-e})}if(this._glLost||!this.gl)return;let p=new Set;for(let t of e.affected||[]){let e=this.gpuTraces.findIndex(e=>e.trace.id===t),r=n.traces.find(e=>e.id===t);e<0||!r||(this._destroyTraceResources(this.gpuTraces[e],p),this.gpuTraces[e]=this._buildTrace(i,r))}this._updatePickable(),this._scheduleViewRequest(this.view,{delay:0}),this.draw()},_onKernelMsg(e,t){if(!this._destroyed&&e&&!(this._glLost&&e.type!==`append`&&e.type!==`pick_result`))if(e.type===`tier_update`){if(e.seq!==this.seq)return;for(let n of e.traces){let e=this.gpuTraces.find(e=>e.trace.id===n.id);if(!e)continue;let r=this.gl,i=this._asF32(t[n.x.buf]),a=this._asF32(t[n.y.buf]),o=n.base&&e.baseBuf?this._asF32(t[n.base.buf]):null,s=Math.min(n.x.len,n.y.len);o&&(s=Math.min(s,n.base.len));let c=this._smoothArrays(e.trace,i,a,o,s),l=c||{x:i,y:a,n:s},u=this._stepArrays(e.trace,l.x,l.y,l.n);r.bindBuffer(r.ARRAY_BUFFER,e.xBuf),r.bufferData(r.ARRAY_BUFFER,u?u.x:l.x,r.STATIC_DRAW),r.bindBuffer(r.ARRAY_BUFFER,e.yBuf),r.bufferData(r.ARRAY_BUFFER,u?u.y:l.y,r.STATIC_DRAW),e.xMeta={...e.xMeta,offset:n.x.offset,scale:n.x.scale},e.yMeta={...e.yMeta,offset:n.y.offset,scale:n.y.scale},e._dashX=u?u.x:l.x,e._dashY=u?u.y:l.y,o&&(r.bindBuffer(r.ARRAY_BUFFER,e.baseBuf),r.bufferData(r.ARRAY_BUFFER,c?c.extra:o,r.STATIC_DRAW),e.baseMeta={...e.baseMeta,offset:n.base.offset,scale:n.base.scale}),e.n=u?u.n:l.n}this.draw()}else if(e.type===`density_update`){if(e.seq!==void 0&&e.seq!==this.seq)return;let n=e.traces||[],r=new Set(n.map(e=>Number(e.id)));r.size===0&&e.trace!==void 0&&r.add(Number(e.trace));let i=r.size===0&&e.stale,a=t=>{e.seq!==void 0&&t._lodPendingSeq!==e.seq||(t._lodPendingView=null,t._lodPendingSeq=null,t._lodPendingAt=null)};if(r.size||i)for(let e of this.gpuTraces)e.tier===`density`&&(!i&&!r.has(e.trace.id)||a(e));for(let e of n){let n=this.gpuTraces.find(t=>t.trace.id===e.id&&t.tier===`density`);if(n){if(a(n),e.mode===`points`){this._applyDrill(n,e,t);continue}Xe(this,n,e,t)}}this._updatePickable(),this.draw()}else if(e.type===`append`)this._applyAppend(e,t);else if(e.type===`pick_result`){if(e.seq!==void 0&&e.seq!==this._pickSeq)return;if(!e.row){this._hideTooltip();return}let t=this._lastRow;if(t&&t.trace===e.row.trace&&t.index===e.row.index)for(let[n,r]of Object.entries(t))e.row[n]===void 0&&(e.row[n]=r);this._applySharedTooltipFields(e.row),this._lastRow=e.row,this._tooltipAnchor&&Number.isFinite(e.row.x)&&Number.isFinite(e.row.y)&&(this._tooltipAnchor.x=e.row.x,this._tooltipAnchor.y=e.row.y);let n=this._lastHoverXY;if(n&&this._renderTooltip(e.row,n.clientX,n.clientY,{announce:!this._a11yKeyboardReadout}),this._interactionFlag(`hover`)){let t={row:e.row,trace:e.row.trace,index:e.row.index,exact:!0,view:this._eventView(`hover`)};n&&Object.assign(t,this._hoverPayload(e.row,this._hoverTarget,n.clientX,n.clientY,!0)),this._dispatchChartEvent(`hover`,t)}}else e.type===`selection`?(e.bounds?this._lastBrush={mode:`box`,...e.bounds}:e.polygon&&(this._lastBrush={mode:`poly`,points:e.polygon}),(!e.traces||!e.traces.length)&&(this._lastBrush=null),this._applySelectionBuffers(e,t),this._selectionCount=e.total||0,this.draw(),this._interactionFlag(`select`,!0)&&this._dispatchChartEvent(`select`,{total:this._selectionCount,view:this._eventView(`select`)})):e.type===`state_patch`?this._applyStatePatch(e.state,{source:`api`,animate:e.animate===!0,history:e.history!==!1}):e.type===`view_nav`?e.op===`reset`&&this._navReset(e.axes):e.type===`selection_rows`&&this._applyRowsSelection(e,t)},_applySelectionBuffers(e,t){if(!e.traces||!e.traces.length){for(let e of this.gpuTraces)e.selActive=!1,e.drill&&(e.drill.selActive=!1);return}for(let n of e.traces){let e=this.gpuTraces.find(e=>e.trace.id===n.id);if(!e)continue;let r=e.tier===`density`?e.drill:e;if(!r||!r.n||e.tier===`density`&&n.drill_seq!==void 0&&r.seq!==void 0&&n.drill_seq!==r.seq)continue;let i=this._asU32(t[n.buf]),a=new Float32Array(r.n);for(let e=0;e<i.length;e++)i[e]<r.n&&(a[i[e]]=1);this._applySelMask(r,a)}},_applyDrill(e,t,n){He(this,e,t,n)},_dropDrill(e){We(this,e)},_viewInside(e){if(!e)return!1;let{x0:t,x1:n,y0:r,y1:i}=this.view,a=Math.abs(n-t)*1e-4,o=Math.abs(i-r)*1e-4,s=Math.min(t,n),c=Math.max(t,n),l=Math.min(r,i),u=Math.max(r,i),d=Math.min(e.x0,e.x1),f=Math.max(e.x0,e.x1),p=Math.min(e.y0,e.y1),m=Math.max(e.y0,e.y1);return s>=d-a&&c<=f+a&&l>=p-o&&u<=m+o},_viewOverlaps(e){if(!e)return!1;let{x0:t,x1:n,y0:r,y1:i}=this.view,a=Math.min(t,n),o=Math.max(t,n),s=Math.min(r,i),c=Math.max(r,i),l=Math.min(e.x0,e.x1),u=Math.max(e.x0,e.x1),d=Math.min(e.y0,e.y1),f=Math.max(e.y0,e.y1);return a<=u&&o>=l&&s<=f&&c>=d},_viewInsideRange(e,t){return!e||!t?!1:this._viewInside({x0:e[0],x1:e[1],y0:t[0],y1:t[1]})}});var ht={linear:[0,0,1,1],ease:[.25,.1,.25,1],"ease-in":[.42,0,1,1],"ease-out":[0,0,.58,1],"ease-in-out":[.42,0,.58,1]};function gt(e,t){let n=Number(t[0]),r=Number(t[1]),i=Number(t[2]),a=Number(t[3]),o=(e,t,n)=>{let r=1-e;return 3*r*r*e*t+3*r*e*e*n+e*e*e},s=(e,t,n)=>{let r=1-e;return 3*r*r*t+6*r*e*(n-t)+3*e*e*(1-n)},c=e;for(let t=0;t<5;t++){let t=s(c,n,i);if(Math.abs(t)<1e-6)break;c=Math.max(0,Math.min(1,c-(o(c,n,i)-e)/t))}let l=0,u=1;for(let t=0;t<8;t++)o(c,n,i)<e?l=c:u=c,c=(l+u)*.5;return o(c,r,a)}function _t(e,t){let n=Math.max(1e-6,Number(t.stiffness)||170),r=Math.max(1e-6,Number(t.damping)||26),i=Math.max(1e-6,Number(t.mass)||1),a=Math.sqrt(n/i),o=r/(2*Math.sqrt(n*i)),s=e=>{let t=e*6/a;if(o<1){let e=a*Math.sqrt(1-o*o);return 1-Math.exp(-o*a*t)*(Math.cos(e*t)+o*a/e*Math.sin(e*t))}return 1-Math.exp(-a*t)*(1+a*t)},c=s(1),l=Math.abs(c)>1e-9?s(e)/c:e;return Math.max(0,Math.min(1.15,l))}function $(e,t){return t&&typeof t==`object`&&!Array.isArray(t)&&t.type===`spring`?_t(e,t):gt(e,Array.isArray(t)?t:ht[t]||ht[`ease-out`])}Object.assign(Q.prototype,{_resolvedAnimation(e){return{...this.spec.animation||{},...e&&e.animation||{},_present:!!this.spec.animation||!!(e&&e.animation)}},_animationEnabled(e){return!e._present||e.enabled===!1?!1:e.enabled===!0||!this._prefersReducedMotion()},_defaultEntrance(e){return e===`line`||e===`area`||e===`error_band`?`reveal`:e===`bar`||e===`column`?`grow`:e===`scatter`||e===`errorbar`?`scale`:`none`},_setTransitionVisual(e,t,n,r){let i=Math.max(0,Math.min(1,n));if(e._transitionOpacity=1,e._transitionScale=1,e._transitionReveal=1,e._transitionGrow=1,t===`exit`){e._transitionOpacity=0;return}if(t===`update`){e._transitionPositionProgress=i;return}let a=r.enter||`auto`;a===`auto`&&(a=this._defaultEntrance(e.trace.kind)),a!==`none`&&(a===`scale`&&(e.trace.kind===`scatter`||e.trace.kind===`errorbar`?e._transitionScale=i:e.trace.kind===`bar`||e.trace.kind===`column`?e._transitionGrow=i:(e.trace.kind===`line`||e.trace.kind===`area`||e.trace.kind===`error_band`)&&(e._transitionReveal=i)),a===`reveal`&&(e._transitionReveal=i),a===`grow`&&(e._transitionGrow=i))},_clearTransitionVisual(e){delete e._transitionOpacity,delete e._transitionScale,delete e._transitionReveal,delete e._transitionGrow,delete e._transitionPositionProgress,delete e._transitionPhase,delete e._transitionPrevXValues,delete e._transitionPrevYValues,delete e._transitionPrevPosValues,delete e._transitionPrevValue1Values,delete e._transitionPrevValue0Values,delete e._transitionPrevWidth,delete e._transitionPositionInterpolated,this._deleteBuffers(e,[`_transitionPrevXBuf`,`_transitionPrevYBuf`,`_transitionPrevPosBuf`,`_transitionPrevValue1Buf`,`_transitionPrevValue0Buf`])},_emitAnimationLifecycle(e,t,n={}){let r={stage:e,phase:t,...n,view:this._eventView(`animation_${e}`)};this._dispatchChartEvent(`animation_${e}`,r),this.comm?.send?.({type:`animation_${e}`,phase:t,...n})},_runDataAnimation(e,t,n=[]){this._dataAnimRaf&&cancelAnimationFrame(this._dataAnimRaf);let r=(this._dataAnimEpoch||0)+1;this._dataAnimEpoch=r;let i=[];for(let n of t){let t=this._resolvedAnimation(n.trace),r=n._transitionPhase||e;if(!this._animationEnabled(t)||r===`enter`&&t.enter===`none`||r===`update`&&t.update===`none`){this._clearTransitionVisual(n);continue}i.push({g:n,config:t,phase:r,delay:Number(t.delay)||0,duration:Math.max(0,Number(t.duration)||0)})}for(let e of n)e._transitionOpacity=0;if(!i.length){for(let e of t)this._clearTransitionVisual(e);return this._transitionView&&=(this.view={...this._transitionView.to},null),this._destroyTransitionOldTraces(),this.draw(),!1}let a=this._now();this._dataAnim={epoch:r,phase:e,start:a},this._emitAnimationLifecycle(`start`,e);let o=()=>{if(this._destroyed||!this._dataAnim||this._dataAnim.epoch!==r)return;let t=this._now(),n=!1,s=0;for(let e of i){let r=e.duration<=0?+(t>=a+e.delay):Math.max(0,Math.min(1,(t-a-e.delay)/e.duration));this._transitionView&&(s=Math.max(s,r));let i=$(r,e.config.easing);this._setTransitionVisual(e.g,e.phase,i,e.config),r<1&&(n=!0)}if(this._transitionView){let e=$(s,(this.spec.animation||{}).easing),t=this._transitionView.from,n=this._transitionView.to;this.view={x0:t.x0+(n.x0-t.x0)*e,x1:t.x1+(n.x1-t.x1)*e,y0:t.y0+(n.y0-t.y0)*e,y1:t.y1+(n.y1-t.y1)*e}}if(this.draw(),n)this._dataAnimRaf=requestAnimationFrame(o);else{this._dataAnimRaf=null;for(let e of i)this._clearTransitionVisual(e.g);this._finishDataAnimation(e)}};return this._dataAnimRaf=requestAnimationFrame(o),!0},_finishDataAnimation(e){this._dataAnim=null,this._transitionView&&=(this.view={...this._transitionView.to},null),this._destroyTransitionOldTraces(),this._emitAnimationLifecycle(`end`,e)},_startEntranceAnimation(){let e=Number(this.spec.animation_capture_progress);if(Number.isFinite(e)&&e>=0&&e<=1){for(let t of this.gpuTraces||[]){let n=this._resolvedAnimation(t.trace);n._present&&n.enabled!==!1&&n.enter!==`none`?this._setTransitionVisual(t,`enter`,$(e,n.easing),n):this._clearTransitionVisual(t)}this.draw();return}this._runDataAnimation(`enter`,this.gpuTraces||[])},_destroyTransitionOldTraces(){if(!this._transitionOldTraces||!this.gl){this._transitionOldTraces=null;return}let e=new Set;for(let t of this._transitionOldTraces)this._destroyTraceResources(t,e);this._transitionOldTraces=null},_transitionMatches(e,t,n){let r=n.match||`index`,i=[],a=t.trace.animation_fallback||null;if((e.n||0)>2e5||(t.n||0)>2e5)return{strategy:`snap`,pairs:i,fallback:a||`snap:${r}-match-limit`};if(r===`key`)if(e._transitionKeyIndex&&t._transitionKeys)for(let n=0;n<t._transitionKeys.length;n++){let r=e._transitionKeyIndex.get(t._transitionKeys[n]);r!==void 0&&i.push([r,n])}else a||=`index:missing-keys`,r=`index`;if(r===`append`){let n=e._cpu&&e._cpu.x,o=t._cpu&&t._cpu.x;if(n&&o&&n.length<=2e5&&o.length<=2e5){let r=new Map;for(let t=0;t<n.length;t++){let i=this._decodeValue(n,e.xMeta,t);Number.isFinite(i)&&r.set(i.toPrecision(12),t)}for(let e=0;e<o.length;e++){let n=this._decodeValue(o,t.xMeta,e),a=Number.isFinite(n)?r.get(n.toPrecision(12)):void 0;a!==void 0&&i.push([a,e])}}else a||=`index:append-limit`,r=`index`}if(r===`index`){let n=Math.min(e.n||0,t.n||0);for(let e=0;e<n;e++)i.push([e,e])}return{strategy:r,pairs:i,fallback:a}},_recordAnimationFallback(e,t){!e||!t||(e.animation_fallback=t,this.root&&this.root.dataset&&(this.root.dataset.xyAnimationFallback=t))},_preparePositionInterpolation(e,t,n){let r=t._transitionMatch,i=n.interpolate||[];if(n.update!==`interpolate`||!i.includes(`position`)||!r)return!1;if([`bar`,`column`].includes(t.trace.kind))return this._prepareBarPositionInterpolation(e,t,r);if(![`scatter`,`line`].includes(t.trace.kind))return!1;if(!e._cpu||!t._cpu||t.n!==t._cpu.x.length||e.n!==e._cpu.x.length)return r.fallback||=`snap:layout-mismatch`,!1;let a=new Float32Array(t._cpu.x),o=new Float32Array(t._cpu.y),s=(e,t)=>(e-(Number(t.offset)||0))*(Number(t.scale)||1),c=(t,n)=>{let r=e._cpu[t],i=e[t===`x`?`_transitionPrevXValues`:`_transitionPrevYValues`],a=e._transitionPositionProgress;if(!i||!Number.isFinite(a))return this._decodeValue(r,e[`${t}Meta`],n);let o=i[n]+(r[n]-i[n])*a,s=e[`${t}Meta`];return o/(s.scale||1)+s.offset};for(let[e,n]of r.pairs){let r=c(`x`,e),i=c(`y`,e);Number.isFinite(r)&&Number.isFinite(i)&&(a[n]=s(r,t.xMeta),o[n]=s(i,t.yMeta))}return t._transitionPrevXBuf=this._upload(a),t._transitionPrevYBuf=this._upload(o),t._transitionPrevXValues=a,t._transitionPrevYValues=o,t._transitionPositionProgress=0,t._transitionPositionInterpolated=!0,e._transitionSkipExit=!0,!0},_prepareBarPositionInterpolation(e,t,n){let r=e._cpuBar,i=t._cpuBar;if(!r||!i||e.orientation!==t.orientation||t.n!==i.pos.length||e.n!==r.pos.length)return n.fallback||=`snap:layout-mismatch`,!1;let a=new Float32Array(i.pos),o=new Float32Array(i.value1),s=new Float32Array(t.n),c=(e,t)=>(e-(Number(t.offset)||0))*(Number(t.scale)||1),l=(e,t)=>e/(Number(t.scale)||1)+(Number(t.offset)||0),u=(e,t)=>e.value0?l(e.value0[t],e.value0Meta):Number(e.value0Const)||0,d=(t,n,r,i)=>{let a=e._transitionPositionProgress;return l(!t||!Number.isFinite(a)?n[i]:t[i]+(n[i]-t[i])*a,r)},f=t=>{let n=e._transitionPrevValue0Values,i=e._transitionPositionProgress,a=u(r,t);if(!n||!Number.isFinite(i))return a;let o=l(n[t],r.value1Meta);return o+(a-o)*i};for(let e=0;e<t.n;e++)s[e]=c(u(i,e),i.value1Meta);for(let[t,l]of n.pairs){let n=d(e._transitionPrevPosValues,r.pos,r.posMeta,t),u=d(e._transitionPrevValue1Values,r.value1,r.value1Meta,t),p=f(t);Number.isFinite(n)&&Number.isFinite(p)&&Number.isFinite(u)&&(a[l]=c(n,i.posMeta),o[l]=c(u,i.value1Meta),s[l]=c(p,i.value1Meta))}let p=e._transitionPositionProgress,m=Number.isFinite(e._transitionPrevWidth)&&Number.isFinite(p)?e._transitionPrevWidth+(r.width-e._transitionPrevWidth)*p:r.width;return t._transitionPrevPosBuf=this._upload(a),t._transitionPrevValue1Buf=this._upload(o),t._transitionPrevValue0Buf=this._upload(s),t._transitionPrevPosValues=a,t._transitionPrevValue1Values=o,t._transitionPrevValue0Values=s,t._transitionPrevWidth=m,t._transitionPositionProgress=0,t._transitionPositionInterpolated=!0,e._transitionSkipExit=!0,!0},updatePayload(e,t){if(this._destroyed||!e||e.protocol!==4)return!1;this._dataAnimRaf&&cancelAnimationFrame(this._dataAnimRaf),this._dataAnimRaf=null,this._dataAnim&&this._emitAnimationLifecycle(`end`,this._dataAnim.phase,{cancelled:!0}),this._dataAnim=null,this._destroyTransitionOldTraces();let n=this.gpuTraces||[],r={...this.view};this.spec=e,this.interaction=e.interaction||{},this.markStyle=e.mark_style||{},this.axes=this._normalizeAxes(e),this._payload=t,this.view0=void 0,this.view0=this._clampView({ranges:Object.fromEntries(Object.entries(this.axes).map(([e,t])=>[e,[...t.range]]))});let i={...this.view0};if(this._glLost||!this.gl)return this.view={...i},!0;this.gpuTraces=e.traces.map(e=>this._buildTrace(t,e));for(let e of this.gpuTraces){let t=n.find(t=>t.trace.id===e.trace.id&&t.trace.kind===e.trace.kind);if(t){let n=this._resolvedAnimation(e.trace);t._transitionExitTrace=e.trace,this._animationEnabled(n)&&n.update!==`none`&&(e._transitionMatch=this._transitionMatches(t,e,n),this._preparePositionInterpolation(t,e,n),t._transitionSkipExit=!0,this._recordAnimationFallback(e.trace,e._transitionMatch.fallback))}else e._transitionPhase=`enter`}this._transitionOldTraces=n;let a=this.gpuTraces.some(e=>{let t=this._resolvedAnimation(e.trace);return this._animationEnabled(t)&&t.update===`interpolate`&&(t.interpolate||[]).includes(`domain`)});return this._transitionView=a?{from:r,to:i}:null,a||(this.view={...i}),this._updatePickable(),this._runDataAnimation(`update`,this.gpuTraces,n)||(this.view={...i},this._transitionView=null),!0}});var vt=64;Object.assign(Q.prototype,{_initViewState(){this._historyPast=[],this._historyFuture=[],this._historyLastInteractionId=null,this._stateSelection=null,this._customTooltip=null,this.root.xy={applyState:(e,t={})=>this._applyStatePatch(e,{source:`api`,animate:t.animate===!0,history:t.history!==!1}),state:()=>this._durableState(),back:()=>this._historyBack(),forward:()=>this._historyForward()}},_durableState(){let e=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e)]])),t=this._stateSelection;return{v:1,ranges:e,selection:t==null?null:t.rows?{rows:!0}:t.range?{range:{...t.range}}:{polygon:t.polygon.map(e=>[...e])}}},_validateStatePatch(e){if(!e||typeof e!=`object`||Array.isArray(e))return`state patch must be an object`;if(e.v!==void 0&&e.v!==1)return`unsupported state version ${e.v}`;for(let t of Object.keys(e))if(![`v`,`ranges`,`selection`].includes(t))return`unknown key ${t}`;if(e.ranges!==void 0){if(!e.ranges||typeof e.ranges!=`object`||Array.isArray(e.ranges))return`ranges must be an object`;let t=new Set(this._axisIds());for(let[n,r]of Object.entries(e.ranges)){if(!t.has(n))return`unknown axis ${n}`;if(!Array.isArray(r)||r.length!==2||!r.every(e=>Number.isFinite(e))||r[0]===r[1])return`invalid range for axis ${n}`}}if(e.selection!==void 0&&e.selection!==null){let t=e.selection;if(typeof t!=`object`||Array.isArray(t))return`invalid selection`;let n=Object.keys(t);if(n.length!==1)return`invalid selection`;if(n[0]===`range`){let e=t.range;if(!e||typeof e!=`object`||![`x0`,`x1`,`y0`,`y1`].every(t=>Number.isFinite(e[t])))return`invalid selection range`}else if(n[0]===`polygon`){let e=t.polygon;if(!Array.isArray(e)||e.length<3||!e.every(e=>Array.isArray(e)&&e.length===2&&e.every(Number.isFinite)))return`invalid selection polygon`}else if(n[0]===`rows`)return`rows selections are not applicable state`;else return`invalid selection`}return null},_applyStatePatch(e,t={}){if(this._destroyed)return!1;let n=this._validateStatePatch(e);if(n)return typeof console<`u`&&console.warn&&console.warn(`xy: state patch rejected: ${n}`),!1;let r=t.source||`api`,i=++this._interactionSeq;if(e.ranges!==void 0){let n=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e)]]));for(let[t,r]of Object.entries(e.ranges))n[t]=[Number(r[0]),Number(r[1])];this._setView({ranges:n},{animate:t.animate===!0,source:r,phase:`end`,interactionId:i,history:t.history})}if(e.selection!==void 0){let n=e.selection,a={history:t.history,interactionId:i,source:r};if(n===null)this._clearSelection(a);else if(n.range){let{x0:e,x1:t,y0:r,y1:i}=n.range;this._sendSelect([e,r],[t,i],a)}else n.polygon&&this._sendSelectPolygon(n.polygon.map(e=>[...e]),a)}return!0},_historyEnabled(){return this._interactionFlag(`history`,!0)},_historyRecord(e={}){if(!this._historyPast||!this._historyEnabled()||this._destroyed||e.history===!1||e.source===`linked`||e.source===`history`)return;let t=e.interactionId;t!=null&&t===this._historyLastInteractionId||(this._historyLastInteractionId=t===void 0?null:t,this._historyPast.push(this._durableState()),this._historyPast.length>vt&&this._historyPast.shift(),this._historyFuture.length=0,this._updateHistoryButtons())},_historyBack(){if(!this._historyEnabled()||!this._historyPast.length)return!1;let e=this._historyPast.pop();return this._historyFuture.push(this._durableState()),this._historyApply(e),!0},_historyForward(){if(!this._historyEnabled()||!this._historyFuture.length)return!1;let e=this._historyFuture.pop();return this._historyPast.push(this._durableState()),this._historyApply(e),!0},_historyApply(e){let t={v:1,ranges:e.ranges};(!e.selection||!e.selection.rows)&&(t.selection=e.selection??null),this._applyStatePatch(t,{source:`history`,animate:!0,history:!1}),this._historyLastInteractionId=null,this._updateHistoryButtons()},_updateHistoryButtons(){let e=(e,t)=>{e&&(e.disabled=!t,e.setAttribute(`aria-disabled`,String(!t)),e.style.opacity=t?``:`0.4`)};e(this._historyBackBtn,this._historyPast.length>0),e(this._historyForwardBtn,this._historyFuture.length>0)},_navReset(e){let t=Array.isArray(e)?e.filter(e=>this._axisIds().includes(e)):null;this._resetView(!0,`reset`,t)},_applyRowsSelection(e,t){this._clearLassoOverlay();for(let e of this.gpuTraces)e.selActive=!1,e.drill&&(e.drill.selActive=!1);this._lastBrush=null,this._applySelectionBuffers(e,t),this._stateSelection={rows:!0},this._selectionCount=e.total||0,this.draw(),this._interactionFlag(`select`,!0)&&this._dispatchChartEvent(`select`,{total:this._selectionCount,view:this._eventView(`select`)})},_axisBandNavigable(e){if(!this._interactionFlag(`navigation`,!0))return!1;let t=this._interactionFlag(`pan`,!0)&&this._axisPolicy(`pan_axes`).includes(e),n=this._interactionFlag(`zoom`,!0)&&this._axisPolicy(`zoom_axes`).includes(e);return t||n},_axisBandCursor(e,t){return this._interactionFlag(`zoom`,!0)&&this._axisPolicy(`zoom_axes`).includes(e)?t===`x`?`ew-resize`:`ns-resize`:`grab`},_initAxisBands(){if(this.root){this._axisBands={};for(let e of this._axisIds()){if(!this._axisBandNavigable(e))continue;let t=this._axisDim(e),n=document.createElement(`div`);n.dataset.xyAxisBand=e,n.style.cssText=`position:absolute;z-index:2;touch-action:none;cursor:${this._axisBandCursor(e,t)};`,this.root.appendChild(n),this._axisBands[e]=n,this._bindAxisBand(n,e,t)}this._layoutAxisBands()}},_layoutAxisBands(){if(this._axisBands)for(let[e,t]of Object.entries(this._axisBands)){let n=this._axisDim(e),r=this._axis(e).side;n===`x`?(t.style.left=`${this.plot.x}px`,t.style.width=`${this.plot.w}px`,r===`top`?(t.style.top=`${Math.max(0,this.plot.y-24)}px`,t.style.height=`30px`):(t.style.top=`${this.plot.y+this.plot.h-6}px`,t.style.height=`30px`)):(t.style.top=`${this.plot.y}px`,t.style.height=`${this.plot.h}px`,r===`right`?(t.style.left=`${this.plot.x+this.plot.w-6}px`,t.style.width=`30px`):(t.style.left=`${Math.max(0,this.plot.x-24)}px`,t.style.width=`30px`))}},_axisBandValue(e,t,n){let r=this.canvas.getBoundingClientRect();if(this._axisDim(e)===`x`){let n=Math.max(0,Math.min(r.width,t-r.left));return this._dataFromCanvas(n,0,e,`y`)[0]}let i=Math.max(0,Math.min(r.height,n-r.top));return this._dataFromCanvas(0,i,`x`,e)[1]},_bindAxisBand(e,t,n){let r=null;this._listen(e,`wheel`,e=>{if(!this._interactionFlag(`navigation`,!0)||!this._interactionFlag(`zoom`,!0)||!this._interactionFlag(`wheel_zoom`,!0)||!this._axisPolicy(`zoom_axes`).includes(t))return;e.preventDefault();let n=1.0015**e.deltaY,r=this.canvas.getBoundingClientRect(),i=(e.clientX-r.left)/r.width,a=1-(e.clientY-r.top)/r.height;this._queueWheelZoom(n,i,a,[t])},{passive:!1}),this._listen(e,`pointerdown`,n=>{if(!(n.pointerType===`mouse`&&n.button!==0)&&this._interactionFlag(`navigation`,!0)){this._cancelViewAnimation(),r={pointerId:n.pointerId,sx:n.clientX,sy:n.clientY,view:this._copyView(this.view),d0:this._axisBandValue(t,n.clientX,n.clientY),mode:null,interactionId:++this._interactionSeq,changedAxes:[]};try{e.setPointerCapture(n.pointerId)}catch{}this.tooltip.style.display=`none`,n.preventDefault()}});let i=()=>this._interactionFlag(`pan`,!0)&&this._axisPolicy(`pan_axes`).includes(t)?!0:this._axisContained(t),a=()=>this._interactionFlag(`zoom`,!0)&&this._interactionFlag(`box_zoom`,!0)&&this._axisPolicy(`zoom_axes`).includes(t);this._listen(e,`pointermove`,o=>{if(!r||o.pointerId!==r.pointerId)return;let s=o.clientX-r.sx,c=o.clientY-r.sy;if(!r.mode){if(Math.hypot(s,c)<=3)return;r.mode=Math.abs(n===`x`?s:c)>=Math.abs(n===`x`?c:s)?i()?`pan`:a()?`span`:`none`:a()?`span`:i()?`pan`:`none`,r.mode===`pan`&&(e.style.cursor=`grabbing`)}if(r.mode===`pan`){let e=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e,r.view)]])),i=this._axis(t),[a,o]=this._axisRange(t,r.view),l=this._axisCoord(i,a),u=this._axisCoord(i,o);if(![l,u].every(Number.isFinite)||l===u)return;let d=n===`x`?this.plot.w:this.plot.h,f=(n===`x`?s:c)/d*(u-l),p=n===`x`?-f:f;e[t]=[this._axisValue(i,l+p),this._axisValue(i,u+p)];let m=this._setView({ranges:e},{source:`pan_drag`,phase:`update`,interactionId:r.interactionId});r.changedAxes=[...new Set([...r.changedAxes,...m])]}else if(r.mode===`span`){let e=this.root.getBoundingClientRect();if(this.selRect.dataset.xyBand=`zoom`,this.selRect.style.display=`block`,n===`x`){let t=Math.max(this.plot.x,Math.min(this.plot.x+this.plot.w,Math.min(r.sx,o.clientX)-e.left)),n=Math.max(this.plot.x,Math.min(this.plot.x+this.plot.w,Math.max(r.sx,o.clientX)-e.left));this.selRect.style.left=`${t}px`,this.selRect.style.width=`${Math.max(0,n-t)}px`,this.selRect.style.top=`${this.plot.y}px`,this.selRect.style.height=`${this.plot.h}px`}else{let t=Math.max(this.plot.y,Math.min(this.plot.y+this.plot.h,Math.min(r.sy,o.clientY)-e.top)),n=Math.max(this.plot.y,Math.min(this.plot.y+this.plot.h,Math.max(r.sy,o.clientY)-e.top));this.selRect.style.top=`${t}px`,this.selRect.style.height=`${Math.max(0,n-t)}px`,this.selRect.style.left=`${this.plot.x}px`,this.selRect.style.width=`${this.plot.w}px`}}o.preventDefault()});let o=i=>{if(!r||i.pointerId!==r.pointerId)return;let a=r;if(r=null,e.style.cursor=this._axisBandCursor(t,n),a.mode===`span`&&(this.selRect.style.display=`none`),i.type!==`pointercancel`){if(a.mode===`pan`&&a.changedAxes.length)this._emitViewChange(`pan_drag`,{axes:a.changedAxes,phase:`end`,interactionId:a.interactionId});else if(a.mode===`span`){let e=this._axisBandValue(t,i.clientX,i.clientY),n=this._axis(t),r=this._axisCoord(n,a.d0),o=this._axisCoord(n,e),s=Math.max(Math.abs(r),Math.abs(o),1e-30)*1e-12;if(![r,o].every(Number.isFinite)||Math.abs(o-r)<s)return;let[c,l]=this._axisRange(t),u=this._axisCoord(n,l)<this._axisCoord(n,c),d=Math.min(r,o),f=Math.max(r,o),p=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e)]]));p[t]=[this._axisValue(n,u?f:d),this._axisValue(n,u?d:f)],this._setView({ranges:p},{animate:!0,anchors:{[t]:.5},source:`box_zoom`,phase:`end`,interactionId:a.interactionId})}}};this._listen(e,`pointerup`,o),this._listen(e,`pointercancel`,o)},_seriesColorCss(e){let t=e&&e.color;if(!Array.isArray(t)||t.length<3)return null;let n=e=>Math.max(0,Math.min(255,Math.round(Number(e)*255)));return`rgb(${n(t[0])}, ${n(t[1])}, ${n(t[2])})`},_hoverPayload(e,t,n,r,i=!1){let a=this.root.getBoundingClientRect(),o=this.canvas.getBoundingClientRect(),s=Math.max(0,Math.min(o.width,n-o.left)),c=Math.max(0,Math.min(o.height,r-o.top)),l={};for(let e of this._axisIds()){let t=this._axisDim(e),[n,r]=this._dataFromCanvas(s,c,t===`x`?e:`x`,t===`y`?e:`y`);l[e]=t===`x`?n:r}let u=t&&t.g,d=e?[{trace:u&&u.trace&&u.trace.name||e.trace,index:e.index,row:e,x_axis:u&&u.xAxis||`x`,y_axis:u&&u.yAxis||`y`,color:this._seriesColorCss(u)}]:[],f={active:!0,cursor:{px:[n-a.left,r-a.top],data:l},points:d};return i&&(f.exact=!0),f},setCustomTooltip(e){if(this.tooltip){if(!e){this._customTooltip=null,delete this.tooltip.dataset.xyCustomTooltip,this.tooltip.style.background=``,this.tooltip.style.border=``,this.tooltip.style.padding=``,this.tooltip.replaceChildren(),this.tooltip.style.display=`none`;return}this._customTooltip=e,this.tooltip.dataset.xyCustomTooltip=``,this.tooltip.style.background=`transparent`,this.tooltip.style.border=`none`,this.tooltip.style.padding=`0`,e.style.display=``,this.tooltip.replaceChildren(e)}}});function yt(e,t){if(e.buffer_layout===`split`){if(!Array.isArray(t))throw Error(`xy: spec says buffer_layout=split but the transport delivered one buffer`);return t.map(o)}if(Array.isArray(t))throw Error(`xy: transport delivered a buffer list but the spec is not split-layout`);return o(t)}function bt({model:e,el:t}){let n=e.get(`spec`),r=new Q(t,n,yt(n,e.get(`buffers`)),{send:t=>e.send(t),wantsViewChange:()=>n.interaction?._transport_view_change===!0,onMessage:t=>{let n=(e,n)=>t(e,n);return e.on(`msg:custom`,n),()=>e.off?.(`msg:custom`,n)}});return()=>r.destroy()}function xt(e,t,n){let r=o(n),i=new Q(e,t,r,null),a=e=>i._columnView(r,t.columns[e]);for(let e of i.gpuTraces)J(e.trace.kind).retainCpu&&e.tier!==`density`&&(e._cpu={x:a(e.trace.x),y:a(e.trace.y),xMeta:e.xMeta,yMeta:e.yMeta},e.trace.color&&Number.isInteger(e.trace.color.buf)&&(e._cpu.color=a(e.trace.color.buf)),e.trace.size&&Number.isInteger(e.trace.size.buf)&&(e._cpu.size=a(e.trace.size.buf)));return i}var St={render:bt,decodeFrame:d};export{Q as ChartView,q as MARK_KINDS,d as decodeFrame,St as default,J as markOf,bt as render,xt as renderStandalone};
\ No newline at end of file
diff --git a/python/xy/static/standalone.js b/python/xy/static/standalone.js
index d1a2acda..07a0f8f2 100644
--- a/python/xy/static/standalone.js
+++ b/python/xy/static/standalone.js
@@ -1,237 +1,4 @@
-(() => {
-
-"use strict";
-const PROTOCOL = 4;
-const XY_FRAME_MAGIC = [0x58, 0x59, 0x42, 0x46];
-const XY_FRAME_VERSION = 1;
-const XY_FRAME_HEADER_SIZE = 24;
-const XY_FRAME_ALIGNMENT = 8;
-const XY_FRAME_DEFAULT_LIMITS = Object.freeze({
-maxFrameBytes: 512 * 1024 * 1024,
-maxMetadataBytes: 8 * 1024 * 1024,
-maxBuffers: 4096,
-maxBufferBytes: 256 * 1024 * 1024,
-});
-function xyByteSpan(value, label = "buffer") {
-if (value instanceof ArrayBuffer) return new Uint8Array(value);
-if (ArrayBuffer.isView(value)) {
-return new Uint8Array(value.buffer, value.byteOffset, value.byteLength);
-}
-throw new TypeError(`${label} must be an ArrayBuffer or ArrayBuffer view`);
-}
-function xyFrameLimit(limits, name) {
-const fallback = XY_FRAME_DEFAULT_LIMITS[name];
-const value = limits && limits[name] != null ? limits[name] : fallback;
-if (!Number.isSafeInteger(value) || value <= 0) {
-throw new RangeError(`${name} must be a positive safe integer`);
-}
-return value;
-}
-function xyAlign8(value) {
-return Math.ceil(value / XY_FRAME_ALIGNMENT) * XY_FRAME_ALIGNMENT;
-}
-function xyFrameU64(view, offset, label) {
-const value = view.getBigUint64(offset, true);
-if (value > BigInt(Number.MAX_SAFE_INTEGER)) {
-throw new RangeError(`${label} exceeds JavaScript's safe integer range`);
-}
-return Number(value);
-}
-function xyRequireZeroPadding(bytes, start, end, label) {
-if (end > bytes.byteLength) throw new RangeError(`truncated ${label} padding`);
-for (let i = start; i < end; i++) {
-if (bytes[i] !== 0) throw new RangeError(`non-zero ${label} padding`);
-}
-}
-
-function decodeFrame(body, limits = null) {
-const bytes = xyByteSpan(body, "frame body");
-const maxFrameBytes = xyFrameLimit(limits, "maxFrameBytes");
-const maxMetadataBytes = xyFrameLimit(limits, "maxMetadataBytes");
-const maxBuffers = xyFrameLimit(limits, "maxBuffers");
-const maxBufferBytes = xyFrameLimit(limits, "maxBufferBytes");
-if (maxMetadataBytes > maxFrameBytes) {
-throw new RangeError("maxMetadataBytes cannot exceed maxFrameBytes");
-}
-if (maxBufferBytes > maxFrameBytes) {
-throw new RangeError("maxBufferBytes cannot exceed maxFrameBytes");
-}
-if (bytes.byteOffset % XY_FRAME_ALIGNMENT !== 0) {
-throw new RangeError("frame body must start on an 8-byte boundary");
-}
-if (bytes.byteLength > maxFrameBytes) {
-throw new RangeError(`frame length ${bytes.byteLength} exceeds limit ${maxFrameBytes}`);
-}
-if (bytes.byteLength < XY_FRAME_HEADER_SIZE) throw new RangeError("truncated frame header");
-const view = new DataView(bytes.buffer, bytes.byteOffset, bytes.byteLength);
-for (let i = 0; i < XY_FRAME_MAGIC.length; i++) {
-if (view.getUint8(i) !== XY_FRAME_MAGIC[i]) throw new RangeError("invalid frame magic");
-}
-const version = view.getUint8(4);
-if (version !== XY_FRAME_VERSION) throw new RangeError(`unsupported frame version ${version}`);
-const flags = view.getUint8(5);
-if (flags !== 0) throw new RangeError(`unsupported frame flags 0x${flags.toString(16)}`);
-const headerSize = view.getUint16(6, true);
-if (headerSize !== XY_FRAME_HEADER_SIZE) {
-throw new RangeError(`unsupported frame header size ${headerSize}`);
-}
-const metadataLength = view.getUint32(8, true);
-const bufferCount = view.getUint32(12, true);
-const totalLength = xyFrameU64(view, 16, "declared frame length");
-if (totalLength !== bytes.byteLength) {
-throw new RangeError(
-`declared frame length ${totalLength} does not match body length ${bytes.byteLength}`
-);
-}
-if (metadataLength > maxMetadataBytes) {
-throw new RangeError(`metadata length ${metadataLength} exceeds limit ${maxMetadataBytes}`);
-}
-if (bufferCount > maxBuffers) {
-throw new RangeError(`buffer count ${bufferCount} exceeds limit ${maxBuffers}`);
-}
-const metadataEnd = XY_FRAME_HEADER_SIZE + metadataLength;
-if (metadataEnd > bytes.byteLength) throw new RangeError("truncated frame metadata");
-let message;
-try {
-const metadataBytes = new Uint8Array(
-bytes.buffer,
-bytes.byteOffset + XY_FRAME_HEADER_SIZE,
-metadataLength
-);
-message = JSON.parse(new TextDecoder("utf-8", { fatal: true }).decode(metadataBytes));
-} catch (error) {
-throw new RangeError(`invalid frame metadata JSON: ${error}`);
-}
-if (!message || Array.isArray(message) || typeof message !== "object") {
-throw new RangeError("frame metadata must decode to an object");
-}
-let position = xyAlign8(metadataEnd);
-xyRequireZeroPadding(bytes, metadataEnd, position, "metadata");
-const buffers = [];
-for (let i = 0; i < bufferCount; i++) {
-if (position + 8 > bytes.byteLength) throw new RangeError(`truncated buffer ${i} length`);
-const bufferLength = xyFrameU64(view, position, `buffer ${i} length`);
-position += 8;
-if (bufferLength > maxBufferBytes) {
-throw new RangeError(`buffer ${i} length ${bufferLength} exceeds limit ${maxBufferBytes}`);
-}
-const end = position + bufferLength;
-if (end > bytes.byteLength) throw new RangeError(`truncated buffer ${i}`);
-const absoluteOffset = bytes.byteOffset + position;
-if (absoluteOffset % XY_FRAME_ALIGNMENT !== 0) {
-throw new RangeError(`buffer ${i} is not 8-byte aligned`);
-}
-buffers.push(new Uint8Array(bytes.buffer, absoluteOffset, bufferLength));
-const paddedEnd = xyAlign8(end);
-xyRequireZeroPadding(bytes, end, paddedEnd, `buffer ${i}`);
-position = paddedEnd;
-}
-if (position !== bytes.byteLength) {
-throw new RangeError(`frame has ${bytes.byteLength - position} trailing bytes`);
-}
-return { message, buffers, version: XY_FRAME_VERSION, byteLength: bytes.byteLength };
-}
-const COLORMAP_STOPS = {
-binary: [[255, 255, 255], [0, 0, 0]],
-gray: [[0, 0, 0], [25, 25, 25], [51, 51, 51], [76, 76, 76], [102, 102, 102], [128, 128, 128], [153, 153, 153], [179, 179, 179], [204, 204, 204], [230, 230, 230], [255, 255, 255]],
-viridis: [[68, 1, 84], [72, 36, 117], [65, 68, 135], [53, 95, 141], [42, 120, 142], [33, 145, 140], [34, 168, 132], [68, 191, 112], [122, 209, 81], [189, 223, 38], [253, 231, 37]],
-plasma: [[13, 8, 135], [65, 4, 157], [106, 0, 168], [143, 13, 164], [177, 42, 144], [204, 71, 120], [225, 100, 98], [242, 132, 75], [252, 166, 54], [252, 206, 37], [240, 249, 33]],
-inferno: [[0, 0, 4], [22, 11, 57], [66, 10, 104], [106, 23, 110], [147, 38, 103], [188, 55, 84], [221, 81, 58], [243, 120, 25], [252, 165, 10], [246, 215, 70], [252, 255, 164]],
-magma: [[0, 0, 4], [20, 14, 54], [59, 15, 112], [100, 26, 128], [140, 41, 129], [183, 55, 121], [222, 73, 104], [247, 112, 92], [254, 159, 109], [254, 207, 146], [252, 253, 191]],
-cividis: [[0, 34, 78], [8, 51, 112], [53, 69, 108], [79, 87, 108], [102, 105, 112], [125, 124, 120], [148, 142, 119], [174, 163, 113], [200, 184, 102], [229, 207, 82], [254, 232, 56]],
-coolwarm: [[59, 76, 192], [89, 119, 227], [123, 159, 249], [158, 190, 255], [192, 212, 245], [221, 220, 220], [242, 203, 183], [247, 172, 142], [238, 132, 104], [214, 82, 68], [180, 4, 38]],
-turbo: [[48, 18, 59], [69, 89, 203], [62, 155, 254], [25, 213, 205], [70, 248, 132], [164, 252, 60], [225, 221, 55], [254, 164, 49], [240, 91, 18], [195, 37, 3], [122, 4, 3]],
-rainbow: [[128, 0, 255], [78, 77, 252], [25, 150, 243], [24, 205, 228], [77, 243, 206], [128, 255, 180], [178, 243, 150], [230, 205, 115], [255, 150, 79], [255, 77, 39], [255, 0, 0]],
-jet: [[0, 0, 128], [0, 0, 241], [0, 76, 255], [0, 176, 255], [41, 255, 206], [125, 255, 122], [206, 255, 41], [255, 196, 0], [255, 104, 0], [241, 8, 0], [128, 0, 0]],
-rdgy: [[103, 0, 31], [177, 24, 43], [214, 96, 77], [243, 164, 129], [253, 219, 199], [254, 254, 254], [224, 224, 224], [185, 185, 185], [135, 135, 135], [76, 76, 76], [26, 26, 26]],
-rdbu: [[103, 0, 31], [177, 24, 43], [214, 96, 77], [243, 164, 129], [253, 219, 199], [246, 247, 247], [209, 229, 240], [144, 196, 221], [67, 147, 195], [32, 101, 171], [5, 48, 97]],
-blues: [[247, 251, 255], [227, 238, 249], [208, 225, 242], [183, 212, 234], [148, 196, 223], [106, 174, 214], [74, 152, 201], [46, 126, 188], [23, 100, 171], [8, 74, 145], [8, 48, 107]],
-purples: [[252, 251, 253], [242, 240, 247], [226, 226, 239], [206, 207, 229], [182, 182, 216], [158, 154, 200], [134, 131, 189], [114, 98, 172], [97, 64, 155], [79, 31, 139], [63, 0, 125]],
-pubu: [[255, 247, 251], [240, 234, 244], [219, 218, 235], [192, 201, 226], [156, 185, 217], [115, 169, 207], [66, 149, 195], [24, 124, 182], [5, 103, 162], [4, 83, 130], [2, 56, 88]],
-piyg: [[142, 1, 82], [196, 26, 124], [222, 119, 174], [241, 181, 217], [253, 224, 239], [247, 247, 246], [230, 245, 208], [183, 224, 133], [127, 188, 65], [76, 145, 33], [39, 100, 25]],
-prgn: [[64, 0, 75], [117, 41, 130], [153, 112, 171], [193, 164, 206], [231, 212, 232], [246, 247, 246], [217, 240, 211], [165, 218, 159], [90, 174, 97], [26, 119, 54], [0, 68, 27]],
-rdylgn: [[165, 0, 38], [214, 47, 39], [244, 109, 67], [253, 173, 96], [254, 224, 139], [254, 255, 190], [217, 239, 139], [165, 216, 106], [102, 189, 99], [25, 151, 80], [0, 104, 55]],
-spectral: [[158, 1, 66], [212, 61, 79], [244, 109, 67], [253, 173, 96], [254, 224, 139], [255, 255, 190], [230, 245, 152], [170, 220, 164], [102, 194, 165], [51, 135, 188], [94, 79, 162]],
-};
-function colormapStops(name) {
-const reversed = typeof name === "string" && name.endsWith("_r");
-const base = reversed ? name.slice(0, -2) : name;
-const stops = COLORMAP_STOPS[base] || COLORMAP_STOPS.viridis;
-return reversed ? [...stops].reverse() : stops;
-}
-function buildLutData(name) {
-const stops = colormapStops(name);
-const N = 256;
-const data = new Uint8Array(N * 4);
-for (let i = 0; i < N; i++) {
-const t = (i / (N - 1)) * (stops.length - 1);
-const lo = Math.floor(t);
-const hi = Math.min(lo + 1, stops.length - 1);
-const f = t - lo;
-for (let c = 0; c < 3; c++) {
-data[i * 4 + c] = Math.round(stops[lo][c] * (1 - f) + stops[hi][c] * f);
-}
-data[i * 4 + 3] = 255;
-}
-return data;
-}
-function resolveCssColor(host, expr) {
-const probe = document.createElement("span");
-probe.style.display = "none";
-probe.style.color = expr;
-host.appendChild(probe);
-const rgb = getComputedStyle(probe).color;
-host.removeChild(probe);
-const m = rgb.match(/rgba?\(([^)]+)\)/);
-if (!m) return null;
-const parts = m[1].split(/[,/\s]+/).filter(Boolean).map(Number);
-const [r, g, b, a = 1] = parts;
-return [r / 255, g / 255, b / 255, a];
-}
-function cssToken(el, name) {
-const v = getComputedStyle(el).getPropertyValue(name).trim();
-return v || null;
-}
-function hexColor(hex) {
-const h = hex.replace("#", "");
-if (!/^(?:[0-9a-fA-F]{3}|[0-9a-fA-F]{4}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})$/.test(h)) {
-return null;
-}
-const full = h.length === 3 || h.length === 4 ? [...h].map((c) => c + c).join("") : h;
-const n = parseInt(full.slice(0, 6), 16);
-const a = full.length === 8 ? parseInt(full.slice(6, 8), 16) / 255 : 1;
-return [((n >> 16) & 255) / 255, ((n >> 8) & 255) / 255, (n & 255) / 255, a];
-}
-function parseColor(host, c, fallback) {
-if (!c) return fallback;
-if (typeof c !== "string") return fallback;
-const expr = c.trim();
-if (!expr) return fallback;
-const out = expr.startsWith("#") ? hexColor(expr) : resolveCssColor(host, expr);
-if (out) return out;
-if (typeof console !== "undefined" && console.warn) {
-console.warn(`xy: unresolvable color ${JSON.stringify(expr)}; using fallback`);
-}
-return fallback;
-}
-function readTheme(root) {
-const text = resolveCssColor(root, "currentColor") || [0.2, 0.2, 0.2, 1];
-const withA = (c, a) => [c[0], c[1], c[2], a];
-const tok = (name) => {
-const v = cssToken(root, name);
-return v ? resolveCssColor(root, v) || null : null;
-};
-return {
-bg: tok("--chart-bg"),
-grid: tok("--chart-grid") || withA(text, 0.14),
-axis: tok("--chart-axis") || withA(text, 0.55),
-label: tok("--chart-text") || withA(text, 0.85),
-};
-}
-function cssColor([r, g, b, a]) {
-return `rgba(${Math.round(r * 255)},${Math.round(g * 255)},${Math.round(b * 255)},${a})`;
-}
-const XY_CHROME_CSS = `
+var xy=(function(e){Object.defineProperties(e,{__esModule:{value:!0},[Symbol.toStringTag]:{value:`Module`}});var t=[88,89,66,70],n=1,r=24,i=8,a=Object.freeze({maxFrameBytes:512*1024*1024,maxMetadataBytes:8*1024*1024,maxBuffers:4096,maxBufferBytes:256*1024*1024});function o(e,t=`buffer`){if(e instanceof ArrayBuffer)return new Uint8Array(e);if(ArrayBuffer.isView(e))return new Uint8Array(e.buffer,e.byteOffset,e.byteLength);throw TypeError(`${t} must be an ArrayBuffer or ArrayBuffer view`)}function s(e){let t=o(e,`chart payload`);return t.byteOffset%4==0?t:new Uint8Array(t)}function c(e,t){let n=a[t],r=e&&e[t]!=null?e[t]:n;if(!Number.isSafeInteger(r)||r<=0)throw RangeError(`${t} must be a positive safe integer`);return r}function l(e){return Math.ceil(e/i)*i}function u(e,t,n){let r=e.getBigUint64(t,!0);if(r>BigInt(2**53-1))throw RangeError(`${n} exceeds JavaScript's safe integer range`);return Number(r)}function d(e,t,n,r){if(n>e.byteLength)throw RangeError(`truncated ${r} padding`);for(let i=t;i<n;i++)if(e[i]!==0)throw RangeError(`non-zero ${r} padding`)}function f(e,a=null){let s=o(e,`frame body`),f=c(a,`maxFrameBytes`),p=c(a,`maxMetadataBytes`),m=c(a,`maxBuffers`),h=c(a,`maxBufferBytes`);if(p>f)throw RangeError(`maxMetadataBytes cannot exceed maxFrameBytes`);if(h>f)throw RangeError(`maxBufferBytes cannot exceed maxFrameBytes`);if(s.byteOffset%i!==0)throw RangeError(`frame body must start on an 8-byte boundary`);if(s.byteLength>f)throw RangeError(`frame length ${s.byteLength} exceeds limit ${f}`);if(s.byteLength<r)throw RangeError(`truncated frame header`);let g=new DataView(s.buffer,s.byteOffset,s.byteLength);for(let e=0;e<t.length;e++)if(g.getUint8(e)!==t[e])throw RangeError(`invalid frame magic`);let _=g.getUint8(4);if(_!==n)throw RangeError(`unsupported frame version ${_}`);let v=g.getUint8(5);if(v!==0)throw RangeError(`unsupported frame flags 0x${v.toString(16)}`);let y=g.getUint16(6,!0);if(y!==r)throw RangeError(`unsupported frame header size ${y}`);let b=g.getUint32(8,!0),x=g.getUint32(12,!0),S=u(g,16,`declared frame length`);if(S!==s.byteLength)throw RangeError(`declared frame length ${S} does not match body length ${s.byteLength}`);if(b>p)throw RangeError(`metadata length ${b} exceeds limit ${p}`);if(x>m)throw RangeError(`buffer count ${x} exceeds limit ${m}`);let C=r+b;if(C>s.byteLength)throw RangeError(`truncated frame metadata`);let w;try{let e=new Uint8Array(s.buffer,s.byteOffset+r,b);w=JSON.parse(new TextDecoder(`utf-8`,{fatal:!0}).decode(e))}catch(e){throw RangeError(`invalid frame metadata JSON: ${e}`)}if(!w||Array.isArray(w)||typeof w!=`object`)throw RangeError(`frame metadata must decode to an object`);let T=l(C);d(s,C,T,`metadata`);let E=[];for(let e=0;e<x;e++){if(T+8>s.byteLength)throw RangeError(`truncated buffer ${e} length`);let t=u(g,T,`buffer ${e} length`);if(T+=8,t>h)throw RangeError(`buffer ${e} length ${t} exceeds limit ${h}`);let n=T+t;if(n>s.byteLength)throw RangeError(`truncated buffer ${e}`);let r=s.byteOffset+T;if(r%i!==0)throw RangeError(`buffer ${e} is not 8-byte aligned`);E.push(new Uint8Array(s.buffer,r,t));let a=l(n);d(s,n,a,`buffer ${e}`),T=a}if(T!==s.byteLength)throw RangeError(`frame has ${s.byteLength-T} trailing bytes`);return{message:w,buffers:E,version:n,byteLength:s.byteLength}}var p={binary:[[255,255,255],[0,0,0]],gray:[[0,0,0],[25,25,25],[51,51,51],[76,76,76],[102,102,102],[128,128,128],[153,153,153],[179,179,179],[204,204,204],[230,230,230],[255,255,255]],viridis:[[68,1,84],[72,36,117],[65,68,135],[53,95,141],[42,120,142],[33,145,140],[34,168,132],[68,191,112],[122,209,81],[189,223,38],[253,231,37]],plasma:[[13,8,135],[65,4,157],[106,0,168],[143,13,164],[177,42,144],[204,71,120],[225,100,98],[242,132,75],[252,166,54],[252,206,37],[240,249,33]],inferno:[[0,0,4],[22,11,57],[66,10,104],[106,23,110],[147,38,103],[188,55,84],[221,81,58],[243,120,25],[252,165,10],[246,215,70],[252,255,164]],magma:[[0,0,4],[20,14,54],[59,15,112],[100,26,128],[140,41,129],[183,55,121],[222,73,104],[247,112,92],[254,159,109],[254,207,146],[252,253,191]],cividis:[[0,34,78],[8,51,112],[53,69,108],[79,87,108],[102,105,112],[125,124,120],[148,142,119],[174,163,113],[200,184,102],[229,207,82],[254,232,56]],coolwarm:[[59,76,192],[89,119,227],[123,159,249],[158,190,255],[192,212,245],[221,220,220],[242,203,183],[247,172,142],[238,132,104],[214,82,68],[180,4,38]],turbo:[[48,18,59],[69,89,203],[62,155,254],[25,213,205],[70,248,132],[164,252,60],[225,221,55],[254,164,49],[240,91,18],[195,37,3],[122,4,3]],rainbow:[[128,0,255],[78,77,252],[25,150,243],[24,205,228],[77,243,206],[128,255,180],[178,243,150],[230,205,115],[255,150,79],[255,77,39],[255,0,0]],jet:[[0,0,128],[0,0,241],[0,76,255],[0,176,255],[41,255,206],[125,255,122],[206,255,41],[255,196,0],[255,104,0],[241,8,0],[128,0,0]],rdgy:[[103,0,31],[177,24,43],[214,96,77],[243,164,129],[253,219,199],[254,254,254],[224,224,224],[185,185,185],[135,135,135],[76,76,76],[26,26,26]],rdbu:[[103,0,31],[177,24,43],[214,96,77],[243,164,129],[253,219,199],[246,247,247],[209,229,240],[144,196,221],[67,147,195],[32,101,171],[5,48,97]],blues:[[247,251,255],[227,238,249],[208,225,242],[183,212,234],[148,196,223],[106,174,214],[74,152,201],[46,126,188],[23,100,171],[8,74,145],[8,48,107]],purples:[[252,251,253],[242,240,247],[226,226,239],[206,207,229],[182,182,216],[158,154,200],[134,131,189],[114,98,172],[97,64,155],[79,31,139],[63,0,125]],pubu:[[255,247,251],[240,234,244],[219,218,235],[192,201,226],[156,185,217],[115,169,207],[66,149,195],[24,124,182],[5,103,162],[4,83,130],[2,56,88]],piyg:[[142,1,82],[196,26,124],[222,119,174],[241,181,217],[253,224,239],[247,247,246],[230,245,208],[183,224,133],[127,188,65],[76,145,33],[39,100,25]],prgn:[[64,0,75],[117,41,130],[153,112,171],[193,164,206],[231,212,232],[246,247,246],[217,240,211],[165,218,159],[90,174,97],[26,119,54],[0,68,27]],rdylgn:[[165,0,38],[214,47,39],[244,109,67],[253,173,96],[254,224,139],[254,255,190],[217,239,139],[165,216,106],[102,189,99],[25,151,80],[0,104,55]],spectral:[[158,1,66],[212,61,79],[244,109,67],[253,173,96],[254,224,139],[255,255,190],[230,245,152],[170,220,164],[102,194,165],[51,135,188],[94,79,162]]};function m(e){let t=typeof e==`string`&&e.endsWith(`_r`),n=p[t?e.slice(0,-2):e]||p.viridis;return t?[...n].reverse():n}function h(e){let t=m(e),n=new Uint8Array(256*4);for(let e=0;e<256;e++){let r=e/255*(t.length-1),i=Math.floor(r),a=Math.min(i+1,t.length-1),o=r-i;for(let r=0;r<3;r++)n[e*4+r]=Math.round(t[i][r]*(1-o)+t[a][r]*o);n[e*4+3]=255}return n}function g(e,t){let n=document.createElement(`span`);n.style.display=`none`,n.style.color=t,e.appendChild(n);let r=getComputedStyle(n).color;e.removeChild(n);let i=r.match(/rgba?\(([^)]+)\)/);if(!i)return null;let[a,o,s,c=1]=i[1].split(/[,/\s]+/).filter(Boolean).map(Number);return[a/255,o/255,s/255,c]}function _(e,t){return getComputedStyle(e).getPropertyValue(t).trim()||null}function v(e){let t=e.replace(`#`,``);if(!/^(?:[0-9a-fA-F]{3}|[0-9a-fA-F]{4}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})$/.test(t))return null;let n=t.length===3||t.length===4?[...t].map(e=>e+e).join(``):t,r=parseInt(n.slice(0,6),16),i=n.length===8?parseInt(n.slice(6,8),16)/255:1;return[(r>>16&255)/255,(r>>8&255)/255,(r&255)/255,i]}function y(e,t,n){if(!t||typeof t!=`string`)return n;let r=t.trim();return r?(r.startsWith(`#`)?v(r):g(e,r))||(typeof console<`u`&&console.warn&&console.warn(`xy: unresolvable color ${JSON.stringify(r)}; using fallback`),n):n}function b(e){let t=g(e,`currentColor`)||[.2,.2,.2,1],n=(e,t)=>[e[0],e[1],e[2],t],r=t=>{let n=_(e,t);return n&&g(e,n)||null};return{bg:r(`--chart-bg`),grid:r(`--chart-grid`)||n(t,.14),axis:r(`--chart-axis`)||n(t,.55),label:r(`--chart-text`)||n(t,.85)}}function x([e,t,n,r]){return`rgba(${Math.round(e*255)},${Math.round(t*255)},${Math.round(n*255)},${r})`}var S=`
 @layer base{
 :where(.xy [data-xy-slot="title"]){text-align:center;font-size:14px;font-weight:600;color:var(--chart-text,inherit)}
 :where(.xy [data-xy-slot="tooltip"]){max-width:calc(100% - 8px);max-height:calc(100% - 8px);box-sizing:border-box;white-space:normal;overflow-wrap:anywhere;overflow:auto;background:var(--chart-tooltip-bg,rgba(20,24,33,.92));color:var(--chart-tooltip-text,#fff);padding:5px 8px;border-radius:4px;font-size:11px;line-height:1.35;box-shadow:0 2px 8px rgba(0,0,0,.3)}
@@ -284,279 +51,8 @@ const XY_CHROME_CSS = `
    carries higher specificity; it stays outside the base layer because it
    overrides host CSS rather than providing an overridable default. */
 .cell-output-ipywidget-background:has(.xy[data-xy-own-bg]){background:transparent!important}
-`;
-function ensureChromeStylesheet(node) {
-let root = node && node.getRootNode ? node.getRootNode() : document;
-const isShadow = typeof ShadowRoot !== "undefined" && root instanceof ShadowRoot;
-if (!isShadow && !(root instanceof Document)) root = document;
-const scope = isShadow ? root : (root.head || document.head || root.documentElement);
-if (!scope || !scope.querySelector) return;
-if (scope.querySelector("style[data-xy-chrome]")) return;
-const style = document.createElement("style");
-style.setAttribute("data-xy-chrome", "");
-style.textContent = XY_CHROME_CSS;
-scope.appendChild(style);
-}
-function safeCssPaint(host, expr, fallback = [0.5, 0.5, 0.5, 1]) {
-const parsed = parseColor(host, expr, fallback);
-const color = Array.isArray(parsed) && parsed.length >= 4 && parsed.every(Number.isFinite)
-? parsed
-: fallback;
-return cssColor(color);
-}
-function niceStep(rough) {
-rough = Math.abs(rough);
-if (!Number.isFinite(rough) || rough <= 0) return 1;
-const mag = Math.pow(10, Math.floor(Math.log10(rough)));
-for (const m of [1, 2, 2.5, 5, 10]) {
-if (rough <= m * mag * (1 + 1e-12)) return m * mag;
-}
-return 10 * mag;
-}
-function linearTicks(lo, hi, target = 6) {
-if (!Number.isFinite(lo) || !Number.isFinite(hi)) return { ticks: [], step: 1 };
-const a = Math.min(lo, hi);
-const b = Math.max(lo, hi);
-if (a === b) return { ticks: [a], step: 1 };
-const step = niceStep((b - a) / target);
-const first = Math.ceil(a / step) * step;
-const out = [];
-for (let v = first; v <= b + step * 1e-9 && out.length < 200; v += step) {
-out.push(Math.abs(v) < step * 1e-9 ? 0 : v);
-}
-return { ticks: out, step };
-}
-function logTicks(lo, hi, target = 6) {
-if (!Number.isFinite(lo) || !Number.isFinite(hi)) return { ticks: [], step: 1 };
-const a = Math.min(lo, hi);
-const b = Math.max(lo, hi);
-if (a <= 0 || b <= 0) return { ticks: [], step: 1 };
-const e0 = Math.floor(Math.log10(a));
-const e1 = Math.ceil(Math.log10(b));
-const span = Math.max(1, e1 - e0);
-const mults = span <= Math.max(2, target) ? [1, 2, 5] : [1];
-const out = [];
-const labels = [];
-const labelEvery = Math.max(1, Math.ceil((e1 - e0 + 1) / Math.max(1, target)));
-for (let e = e0; e <= e1 && out.length < 200; e++) {
-const base = Math.pow(10, e);
-for (const m of mults) {
-const v = m * base;
-if (v >= a * (1 - 1e-12) && v <= b * (1 + 1e-12)) {
-out.push(v);
-if (m === 1 && (e - e0) % labelEvery === 0) labels.push(v);
-}
-if (out.length >= 200) break;
-}
-}
-return { ticks: out, labels: labels.length ? labels : out, step: 1, log: true };
-}
-function categoryTicks(lo, hi, categories, target = 6) {
-if (!categories || !categories.length) return { ticks: [], step: 1 };
-const start = Math.max(0, Math.ceil(Math.min(lo, hi)));
-const stop = Math.min(categories.length - 1, Math.floor(Math.max(lo, hi)));
-if (stop < start) return { ticks: [], step: 1 };
-const visible = stop - start + 1;
-const step = Math.max(1, Math.ceil(visible / Math.max(1, target)));
-const out = [];
-for (let v = start; v <= stop && out.length < 200; v += step) out.push(v);
-return { ticks: out, step };
-}
-const MS = { s: 1e3, m: 6e4, h: 36e5, d: 864e5 };
-const TIME_STEPS = [
-1, 2, 5, 10, 20, 50, 100, 200, 500,
-MS.s, 2 * MS.s, 5 * MS.s, 10 * MS.s, 15 * MS.s, 30 * MS.s,
-MS.m, 2 * MS.m, 5 * MS.m, 10 * MS.m, 15 * MS.m, 30 * MS.m,
-MS.h, 2 * MS.h, 3 * MS.h, 6 * MS.h, 12 * MS.h,
-MS.d, 2 * MS.d, 7 * MS.d, 14 * MS.d,
-];
-function timeTicks(lo, hi, target = 6) {
-if (!Number.isFinite(lo) || !Number.isFinite(hi)) return { ticks: [], step: MS.d };
-const a = Math.min(lo, hi);
-const b = Math.max(lo, hi);
-const span = b - a;
-const rough = span / target;
-if (rough > 14 * MS.d) return calendarTicks(a, b, rough);
-let step = TIME_STEPS[TIME_STEPS.length - 1];
-for (const s of TIME_STEPS) {
-if (s >= rough) { step = s; break; }
-}
-const first = Math.ceil(a / step) * step;
-const out = [];
-for (let v = first; v <= b && out.length < 200; v += step) out.push(v);
-return { ticks: out, step };
-}
-function calendarTicks(lo, hi, rough) {
-const monthsRough = rough / (30 * MS.d);
-const monthSteps = [1, 2, 3, 6, 12, 24, 60, 120];
-let stepM = monthSteps[monthSteps.length - 1];
-for (const s of monthSteps) {
-if (s >= monthsRough) { stepM = s; break; }
-}
-const d = new Date(lo);
-let y = d.getUTCFullYear();
-let m = d.getUTCMonth();
-m = Math.ceil(m / stepM) * stepM;
-const out = [];
-for (;;) {
-const t = Date.UTC(y + Math.floor(m / 12), m % 12, 1);
-if (t > hi) break;
-if (t >= lo) out.push(t);
-m += stepM;
-if (out.length > 1000) break;
-}
-return { ticks: out, step: stepM * 30 * MS.d };
-}
-function fmtTime(ms, step) {
-const d = new Date(ms);
-const pad = (n, w = 2) => String(n).padStart(w, "0");
-if (step >= 28 * MS.d) {
-const mo = d.getUTCMonth();
-return mo === 0 ? String(d.getUTCFullYear())
-: `${d.toLocaleString("en", { month: "short", timeZone: "UTC" })} ${d.getUTCFullYear()}`;
-}
-if (step >= MS.d) return `${d.toLocaleString("en", { month: "short", timeZone: "UTC" })} ${pad(d.getUTCDate())}`;
-if (step >= MS.m) return `${pad(d.getUTCHours())}:${pad(d.getUTCMinutes())}`;
-if (step >= MS.s) return `${pad(d.getUTCHours())}:${pad(d.getUTCMinutes())}:${pad(d.getUTCSeconds())}`;
-return `${pad(d.getUTCMinutes())}:${pad(d.getUTCSeconds())}.${pad(d.getUTCMilliseconds(), 3)}`;
-}
-function fmtLinear(v, step) {
-const av = Math.abs(v);
-if (av >= 1e6 || (av !== 0 && av < 1e-4)) return v.toExponential(1).replace("e+", "e");
-let dec = step ? Math.max(0, Math.ceil(-Math.log10(Math.abs(step)))) : 0;
-while (dec < 8 && Math.abs(Number(step.toFixed(dec)) - step) > Math.abs(step) / 1000) dec++;
-return v.toFixed(Math.min(dec, 8));
-}
-function fmtGeneral(v, precision = 6) {
-const value = Number(v);
-if (!Number.isFinite(value)) return String(v);
-if (value === 0) return Object.is(value, -0) ? "-0" : "0";
-let [coefficient, exponentText] = value.toExponential(precision - 1).split("e");
-const exponent = Number(exponentText);
-if (exponent < -4 || exponent >= precision) {
-coefficient = coefficient.replace(/0+$/, "").replace(/\.$/, "");
-return `${coefficient}e${exponent >= 0 ? "+" : "-"}${String(Math.abs(exponent)).padStart(2, "0")}`;
-}
-const decimals = Math.max(0, precision - exponent - 1);
-let text = Number(value.toPrecision(precision)).toFixed(decimals);
-if (text.includes(".")) text = text.replace(/0+$/, "").replace(/\.$/, "");
-return text;
-}
-function fmtCategory(v, categories) {
-const i = Math.round(v);
-return i >= 0 && i < categories.length ? String(categories[i]) : "";
-}
-function fmtNumberSpec(v, format) {
-if (typeof format !== "string" || !Number.isFinite(Number(v))) return null;
-const percent = format.endsWith("%");
-const raw = percent ? format.slice(0, -1) : format;
-const match = raw.match(/^(,)?\.([0-9]+)f?$/);
-if (!match) return null;
-const digits = Number(match[2]);
-const value = percent ? Number(v) * 100 : Number(v);
-const text = match[1]
-? value.toLocaleString(undefined, {
-minimumFractionDigits: digits,
-maximumFractionDigits: digits,
-})
-: value.toFixed(digits);
-return percent ? `${text}%` : text;
-}
-function fmtTimeSpec(ms, format) {
-if (typeof format !== "string") return null;
-const d = new Date(ms);
-if (!Number.isFinite(d.getTime())) return null;
-const pad = (n, w = 2) => String(n).padStart(w, "0");
-const shortMonth = d.toLocaleString("en", { month: "short", timeZone: "UTC" });
-const longMonth = d.toLocaleString("en", { month: "long", timeZone: "UTC" });
-return format.replace(/%[YmdHMSbB]/g, (token) => {
-switch (token) {
-case "%Y": return String(d.getUTCFullYear());
-case "%m": return pad(d.getUTCMonth() + 1);
-case "%d": return pad(d.getUTCDate());
-case "%H": return pad(d.getUTCHours());
-case "%M": return pad(d.getUTCMinutes());
-case "%S": return pad(d.getUTCSeconds());
-case "%b": return shortMonth;
-case "%B": return longMonth;
-default: return token;
-}
-});
-}
-function fmtAxis(axis, v, tickStep) {
-if (axis && axis.kind === "category") return fmtCategory(v, axis.categories || []);
-if (axis && axis.kind === "time") return fmtTimeSpec(v, axis.format) || fmtTime(v, tickStep);
-const formatted = fmtNumberSpec(v, axis && axis.format);
-if (axis && axis.scale === "log" && Number(v) > 0 && Number(v) < 1 && formatted === "0") {
-return fmtLinear(v, tickStep);
-}
-return formatted || fmtLinear(v, tickStep);
-}
-function fmtValue(v, kind) {
-if (kind === "time_ms") {
-const d = new Date(v);
-return d.toISOString().replace("T", " ").replace(".000Z", "Z");
-}
-if (typeof v === "string") return v;
-const n = Number(v);
-if (!Number.isFinite(n)) return String(v);
-if (n === 0) return "0";
-const av = Math.abs(n);
-if (av >= 1e6 || av < 1e-4) return n.toExponential(3);
-return (Math.round(n * 1e4) / 1e4).toString();
-}
-function compile(gl, type, src) {
-const sh = gl.createShader(type);
-gl.shaderSource(sh, src);
-gl.compileShader(sh);
-if (!gl.getShaderParameter(sh, gl.COMPILE_STATUS)) {
-throw new Error("shader compile: " + gl.getShaderInfoLog(sh) + "\n" + src);
-}
-return sh;
-}
-const ATTR_SLOTS = {
-ax: 0, ay: 1,
-ax0: 0, ax1: 1, ay0: 2, ay1: 3, ax2: 4, ay2: 5, ab0: 4, ab1: 5,
-a_pos: 0, a_v1: 1, a_v0: 2,
-a_corner: 0,
-a_cval: 6, a_sval: 7, a_sel: 8, a_dval: 9,
-a_len0: 10, a_len1: 11,
-a_dash0: 10, a_dashDir: 11,
-a_prevx: 4, a_prevy: 5, a_prevx1: 7, a_prevy1: 8,
-a_rgba: 12, a_style: 13, a_stroke: 14, a_radius: 15,
-};
-function makeProgram(gl, vs, fs) {
-const p = gl.createProgram();
-const vsh = compile(gl, gl.VERTEX_SHADER, vs);
-const fsh = compile(gl, gl.FRAGMENT_SHADER, fs);
-gl.attachShader(p, vsh);
-gl.attachShader(p, fsh);
-for (const [name, slot] of Object.entries(ATTR_SLOTS)) {
-gl.bindAttribLocation(p, slot, name);
-}
-gl.linkProgram(p);
-const ok = gl.getProgramParameter(p, gl.LINK_STATUS);
-const info = gl.getProgramInfoLog(p);
-gl.detachShader(p, vsh);
-gl.detachShader(p, fsh);
-gl.deleteShader(vsh);
-gl.deleteShader(fsh);
-if (!ok) {
-gl.deleteProgram(p);
-throw new Error("program link: " + info);
-}
-p._u = Object.create(null);
-return p;
-}
-function uniformOf(gl, prog, name) {
-let loc = prog._u[name];
-if (loc === undefined) {
-loc = gl.getUniformLocation(prog, name);
-prog._u[name] = loc;
-}
-return loc;
-}
-const AXIS_GLSL = `
+`;function C(e){let t=e&&e.getRootNode?e.getRootNode():document,n=typeof ShadowRoot<`u`&&t instanceof ShadowRoot;!n&&!(t instanceof Document)&&(t=document);let r=n?t:t.head||document.head||t.documentElement;if(!r||!r.querySelector||r.querySelector(`style[data-xy-chrome]`))return;let i=document.createElement(`style`);i.setAttribute(`data-xy-chrome`,``),i.textContent=S,r.appendChild(i)}function w(e,t,n=[.5,.5,.5,1]){let r=y(e,t,n);return x(Array.isArray(r)&&r.length>=4&&r.every(Number.isFinite)?r:n)}function T(e){if(e=Math.abs(e),!Number.isFinite(e)||e<=0)return 1;let t=10**Math.floor(Math.log10(e));for(let n of[1,2,2.5,5,10])if(e<=n*t*1.000000000001)return n*t;return 10*t}function E(e,t,n=6){if(!Number.isFinite(e)||!Number.isFinite(t))return{ticks:[],step:1};let r=Math.min(e,t),i=Math.max(e,t);if(r===i)return{ticks:[r],step:1};let a=T((i-r)/n),o=Math.ceil(r/a)*a,s=[];for(let e=o;e<=i+a*1e-9&&s.length<200;e+=a)s.push(Math.abs(e)<a*1e-9?0:e);return{ticks:s,step:a}}function D(e,t,n=6){if(!Number.isFinite(e)||!Number.isFinite(t))return{ticks:[],step:1};let r=Math.min(e,t),i=Math.max(e,t);if(r<=0||i<=0)return{ticks:[],step:1};let a=Math.floor(Math.log10(r)),o=Math.ceil(Math.log10(i)),s=Math.max(1,o-a)<=Math.max(2,n)?[1,2,5]:[1],c=[],l=[],u=Math.max(1,Math.ceil((o-a+1)/Math.max(1,n)));for(let e=a;e<=o&&c.length<200;e++){let t=10**e;for(let n of s){let o=n*t;if(o>=r*.999999999999&&o<=i*1.000000000001&&(c.push(o),n===1&&(e-a)%u===0&&l.push(o)),c.length>=200)break}}return{ticks:c,labels:l.length?l:c,step:1,log:!0}}function O(e,t,n,r=6){if(!n||!n.length)return{ticks:[],step:1};let i=Math.max(0,Math.ceil(Math.min(e,t))),a=Math.min(n.length-1,Math.floor(Math.max(e,t)));if(a<i)return{ticks:[],step:1};let o=a-i+1,s=Math.max(1,Math.ceil(o/Math.max(1,r))),c=[];for(let e=i;e<=a&&c.length<200;e+=s)c.push(e);return{ticks:c,step:s}}var k={s:1e3,m:6e4,h:36e5,d:864e5},A=[1,2,5,10,20,50,100,200,500,k.s,2*k.s,5*k.s,10*k.s,15*k.s,30*k.s,k.m,2*k.m,5*k.m,10*k.m,15*k.m,30*k.m,k.h,2*k.h,3*k.h,6*k.h,12*k.h,k.d,2*k.d,7*k.d,14*k.d];function j(e,t,n=6){if(!Number.isFinite(e)||!Number.isFinite(t))return{ticks:[],step:k.d};let r=Math.min(e,t),i=Math.max(e,t),a=(i-r)/n;if(a>14*k.d)return ee(r,i,a);let o=A[A.length-1];for(let e of A)if(e>=a){o=e;break}let s=Math.ceil(r/o)*o,c=[];for(let e=s;e<=i&&c.length<200;e+=o)c.push(e);return{ticks:c,step:o}}function ee(e,t,n){let r=n/(30*k.d),i=[1,2,3,6,12,24,60,120],a=i[i.length-1];for(let e of i)if(e>=r){a=e;break}let o=new Date(e),s=o.getUTCFullYear(),c=o.getUTCMonth();c=Math.ceil(c/a)*a;let l=[];for(;;){let n=Date.UTC(s+Math.floor(c/12),c%12,1);if(n>t||(n>=e&&l.push(n),c+=a,l.length>1e3))break}return{ticks:l,step:a*30*k.d}}function te(e,t){let n=new Date(e),r=(e,t=2)=>String(e).padStart(t,`0`);return t>=28*k.d?n.getUTCMonth()===0?String(n.getUTCFullYear()):`${n.toLocaleString(`en`,{month:`short`,timeZone:`UTC`})} ${n.getUTCFullYear()}`:t>=k.d?`${n.toLocaleString(`en`,{month:`short`,timeZone:`UTC`})} ${r(n.getUTCDate())}`:t>=k.m?`${r(n.getUTCHours())}:${r(n.getUTCMinutes())}`:t>=k.s?`${r(n.getUTCHours())}:${r(n.getUTCMinutes())}:${r(n.getUTCSeconds())}`:`${r(n.getUTCMinutes())}:${r(n.getUTCSeconds())}.${r(n.getUTCMilliseconds(),3)}`}function M(e,t){let n=Math.abs(e);if(n>=1e6||n!==0&&n<1e-4)return e.toExponential(1).replace(`e+`,`e`);let r=t?Math.max(0,Math.ceil(-Math.log10(Math.abs(t)))):0;for(;r<8&&Math.abs(Number(t.toFixed(r))-t)>Math.abs(t)/1e3;)r++;return e.toFixed(Math.min(r,8))}function ne(e,t=6){let n=Number(e);if(!Number.isFinite(n))return String(e);if(n===0)return Object.is(n,-0)?`-0`:`0`;let[r,i]=n.toExponential(t-1).split(`e`),a=Number(i);if(a<-4||a>=t)return r=r.replace(/0+$/,``).replace(/\.$/,``),`${r}e${a>=0?`+`:`-`}${String(Math.abs(a)).padStart(2,`0`)}`;let o=Math.max(0,t-a-1),s=Number(n.toPrecision(t)).toFixed(o);return s.includes(`.`)&&(s=s.replace(/0+$/,``).replace(/\.$/,``)),s}function re(e,t){let n=Math.round(e);return n>=0&&n<t.length?String(t[n]):``}function ie(e,t){if(typeof t!=`string`||!Number.isFinite(Number(e)))return null;let n=t.endsWith(`%`),r=(n?t.slice(0,-1):t).match(/^(,)?\.([0-9]+)f?$/);if(!r)return null;let i=Number(r[2]),a=n?Number(e)*100:Number(e),o=r[1]?a.toLocaleString(void 0,{minimumFractionDigits:i,maximumFractionDigits:i}):a.toFixed(i);return n?`${o}%`:o}function ae(e,t){if(typeof t!=`string`)return null;let n=new Date(e);if(!Number.isFinite(n.getTime()))return null;let r=(e,t=2)=>String(e).padStart(t,`0`),i=n.toLocaleString(`en`,{month:`short`,timeZone:`UTC`}),a=n.toLocaleString(`en`,{month:`long`,timeZone:`UTC`});return t.replace(/%[YmdHMSbB]/g,e=>{switch(e){case`%Y`:return String(n.getUTCFullYear());case`%m`:return r(n.getUTCMonth()+1);case`%d`:return r(n.getUTCDate());case`%H`:return r(n.getUTCHours());case`%M`:return r(n.getUTCMinutes());case`%S`:return r(n.getUTCSeconds());case`%b`:return i;case`%B`:return a;default:return e}})}function oe(e,t,n){if(e&&e.kind===`category`)return re(t,e.categories||[]);if(e&&e.kind===`time`)return ae(t,e.format)||te(t,n);let r=ie(t,e&&e.format);return e&&e.scale===`log`&&Number(t)>0&&Number(t)<1&&r===`0`?M(t,n):r||M(t,n)}function N(e,t){if(t===`time_ms`)return new Date(e).toISOString().replace(`T`,` `).replace(`.000Z`,`Z`);if(typeof e==`string`)return e;let n=Number(e);if(!Number.isFinite(n))return String(e);if(n===0)return`0`;let r=Math.abs(n);return r>=1e6||r<1e-4?n.toExponential(3):(Math.round(n*1e4)/1e4).toString()}function se(e,t,n){let r=e.createShader(t);if(e.shaderSource(r,n),e.compileShader(r),!e.getShaderParameter(r,e.COMPILE_STATUS))throw Error(`shader compile: `+e.getShaderInfoLog(r)+`
+`+n);return r}var P={ax:0,ay:1,ax0:0,ax1:1,ay0:2,ay1:3,ax2:4,ay2:5,ab0:4,ab1:5,a_pos:0,a_v1:1,a_v0:2,a_corner:0,a_cval:6,a_sval:7,a_sel:8,a_dval:9,a_len0:10,a_len1:11,a_dash0:10,a_dashDir:11,a_prevx:4,a_prevy:5,a_prevx1:7,a_prevy1:8,a_rgba:12,a_style:13,a_stroke:14,a_radius:15};function ce(e,t,n){let r=e.createProgram(),i=se(e,e.VERTEX_SHADER,t),a=se(e,e.FRAGMENT_SHADER,n);e.attachShader(r,i),e.attachShader(r,a);for(let[t,n]of Object.entries(P))e.bindAttribLocation(r,n,t);e.linkProgram(r);let o=e.getProgramParameter(r,e.LINK_STATUS),s=e.getProgramInfoLog(r);if(e.detachShader(r,i),e.detachShader(r,a),e.deleteShader(i),e.deleteShader(a),!o)throw e.deleteProgram(r),Error(`program link: `+s);return r._u=Object.create(null),r}function F(e,t,n){let r=t._u[n];return r===void 0&&(r=e.getUniformLocation(t,n),t._u[n]=r),r}var I=`
 float xyDecode(float encoded, vec2 meta) {
   return encoded / max(abs(meta.y), 1e-30) + meta.x;
 }
@@ -576,8 +72,7 @@ float xyViewValue(float coord, int mode) {
   if (mode == 1) return pow(10.0, coord);
   return coord;
 }
-`;
-const POINT_VS = `#version 300 es
+`,le=`#version 300 es
 in float ax; in float ay; in float a_prevx; in float a_prevy;
 in float a_cval; in float a_sval; in float a_sel; in float a_dval;
 in vec4 a_rgba; in vec4 a_style; in vec4 a_stroke;
@@ -589,7 +84,7 @@ uniform float u_selectedOpacity; uniform float u_unselectedOpacity;
 uniform float u_transitionProgress; uniform int u_transitionActive;
 out float v_lutCoord; out float v_dim; out float v_dval; out float v_ptSize; out float v_sel;
 out vec4 v_rgba; out vec4 v_style; out vec4 v_stroke;
-${AXIS_GLSL}
+${I}
 void main() {
   float x = u_transitionActive == 1 ? mix(a_prevx, ax, u_transitionProgress) : ax;
   float y = u_transitionActive == 1 ? mix(a_prevy, ay, u_transitionProgress) : ay;
@@ -608,8 +103,17 @@ void main() {
   v_dval = a_dval;
   // Unselected marks dim when a selection is active (§34 selected/unselected styling).
   v_dim = u_selActive == 1 ? mix(u_unselectedOpacity, u_selectedOpacity, step(0.5, a_sel)) : 1.0;
-}`;
-const MARKER_SDF_GLSL = `
+}`,ue=`#version 300 es
+precision highp float; precision highp int;
+uniform vec4 u_color; uniform int u_colorMode; uniform sampler2D u_lut; uniform float u_opacity;
+uniform sampler2D u_dlut; uniform float u_dblend;
+uniform int u_symbol; uniform vec4 u_ptStroke; uniform float u_ptStrokeWidth; uniform int u_ptStrokeFace;
+uniform int u_strokeMode; uniform float u_strokeOpacity;
+uniform int u_selActive; uniform vec4 u_selColor; uniform vec4 u_unselColor;
+in float v_lutCoord; in float v_dim; in float v_dval; in float v_ptSize; in float v_sel;
+in vec4 v_rgba; in vec4 v_style; in vec4 v_stroke;
+out vec4 outColor;
+
 float xySegmentDistance(vec2 p, vec2 a, vec2 b) {
   vec2 e = b - a;
   return length(p - a - e * clamp(dot(p - a, e) / dot(e, e), 0.0, 1.0));
@@ -685,18 +189,7 @@ float xyMarkerSdf(vec2 d, int shape) {
   if (shape == 13) return max(abs(d.x), abs(d.y)) - 0.5;            // snapped pixel
   if (shape == 14) return (abs(d.x) / 0.6 + abs(d.y)) - 0.5;        // thin diamond
   return length(d) - 0.5;                                           // circle
-}`;
-const POINT_FS = `#version 300 es
-precision highp float; precision highp int;
-uniform vec4 u_color; uniform int u_colorMode; uniform sampler2D u_lut; uniform float u_opacity;
-uniform sampler2D u_dlut; uniform float u_dblend;
-uniform int u_symbol; uniform vec4 u_ptStroke; uniform float u_ptStrokeWidth; uniform int u_ptStrokeFace;
-uniform int u_strokeMode; uniform float u_strokeOpacity;
-uniform int u_selActive; uniform vec4 u_selColor; uniform vec4 u_unselColor;
-in float v_lutCoord; in float v_dim; in float v_dval; in float v_ptSize; in float v_sel;
-in vec4 v_rgba; in vec4 v_style; in vec4 v_stroke;
-out vec4 outColor;
-${MARKER_SDF_GLSL}
+}
 void main() {
   vec2 d = gl_PointCoord - 0.5;
   float sd;
@@ -758,21 +251,19 @@ void main() {
     return;
   }
   outColor = px * (shapeCov * v_dim);
-}`;
-const POINT_SIMPLE_VS = `#version 300 es
+}`,de=`#version 300 es
 in float ax; in float ay; in float a_prevx; in float a_prevy;
 uniform vec2 u_xmap; uniform vec2 u_ymap;
 uniform vec2 u_xmeta; uniform vec2 u_ymeta; uniform int u_xmode; uniform int u_ymode;
 uniform float u_size; uniform float u_dpr;
 uniform float u_transitionProgress; uniform int u_transitionActive;
-${AXIS_GLSL}
+${I}
 void main() {
   float x = u_transitionActive == 1 ? mix(a_prevx, ax, u_transitionProgress) : ax;
   float y = u_transitionActive == 1 ? mix(a_prevy, ay, u_transitionProgress) : ay;
   gl_Position = vec4(xyMap(x, u_xmap, u_xmeta, u_xmode), xyMap(y, u_ymap, u_ymeta, u_ymode), 0.0, 1.0);
   gl_PointSize = u_size * u_dpr;
-}`;
-const POINT_SIMPLE_FS = `#version 300 es
+}`,fe=`#version 300 es
 precision highp float;
 uniform vec4 u_color;
 out vec4 outColor;
@@ -782,15 +273,14 @@ void main() {
   float coverage = clamp(0.5 - sd / aa, 0.0, 1.0);
   if (coverage <= 0.001) discard;
   outColor = vec4(u_color.rgb * u_color.a, u_color.a) * coverage;
-}`;
-const PICK_VS = `#version 300 es
+}`,pe=`#version 300 es
 in float ax; in float ay; in float a_prevx; in float a_prevy; in float a_sval;
 uniform vec2 u_xmap; uniform vec2 u_ymap;
 uniform vec2 u_xmeta; uniform vec2 u_ymeta; uniform int u_xmode; uniform int u_ymode;
 uniform float u_size; uniform int u_sizeMode; uniform vec2 u_sizeRange; uniform float u_dpr;
 uniform float u_transitionProgress; uniform int u_transitionActive;
 flat out int v_id;
-${AXIS_GLSL}
+${I}
 void main() {
   float x = u_transitionActive == 1 ? mix(a_prevx, ax, u_transitionProgress) : ax;
   float y = u_transitionActive == 1 ? mix(a_prevy, ay, u_transitionProgress) : ay;
@@ -798,8 +288,7 @@ void main() {
   float sz = u_sizeMode == 1 ? mix(u_sizeRange.x, u_sizeRange.y, a_sval) : u_size;
   gl_PointSize = max(sz, 6.0) * u_dpr; // enlarge hit target
   v_id = gl_VertexID;
-}`;
-const PICK_FS = `#version 300 es
+}`,me=`#version 300 es
 precision highp float; precision highp int;
 uniform int u_pick_base;
 flat in int v_id;
@@ -814,20 +303,18 @@ void main() {
     float((id >> 16) & 255) / 255.0,
     float((id >> 24) & 255) / 255.0
   );
-}`;
-const GRID_VS = `#version 300 es
+}`,he=`#version 300 es
 in vec2 a_corner;
 uniform vec4 u_view; // x0,x1,y0,y1
 uniform int u_xmode; uniform int u_ymode;
 out vec2 v_data;
-${AXIS_GLSL}
+${I}
 void main() {
   gl_Position = vec4(a_corner * 2.0 - 1.0, 0.0, 1.0);
   float x = mix(xyViewCoord(u_view.x, u_xmode), xyViewCoord(u_view.y, u_xmode), a_corner.x);
   float y = mix(xyViewCoord(u_view.z, u_ymode), xyViewCoord(u_view.w, u_ymode), a_corner.y);
   v_data = vec2(xyViewValue(x, u_xmode), xyViewValue(y, u_ymode));
-}`;
-const DENSITY_FS = `#version 300 es
+}`,ge=`#version 300 es
 precision highp float;
 uniform sampler2D u_grid; uniform sampler2D u_lut;
 uniform vec4 u_gridRange; // gx0,gx1,gy0,gy1
@@ -847,8 +334,7 @@ void main() {
   float alpha = u_opacity * paint.a * clamp(t * 1.35, 0.0, 1.0);
   if (alpha <= 0.01) discard;
   outColor = vec4(rgb * alpha, alpha);
-}`;
-const HEATMAP_FS = `#version 300 es
+}`,_e=`#version 300 es
 precision highp float;
 uniform sampler2D u_grid; uniform sampler2D u_lut;
 uniform vec4 u_gridRange; // gx0,gx1,gy0,gy1
@@ -872,8 +358,7 @@ void main() {
   float t = clamp((raw * 255.0 - 1.0) / 254.0, 0.0, 1.0);
   vec3 rgb = texture(u_lut, vec2(t, 0.5)).rgb;
   outColor = vec4(rgb * u_opacity, u_opacity);
-}`;
-const LINE_VS = `#version 300 es
+}`,ve=`#version 300 es
 in float ax0; in float ay0; in float ax1; in float ay1;
 in float a_prevx; in float a_prevy; in float a_prevx1; in float a_prevy1;
 uniform vec2 u_xmap; uniform vec2 u_ymap; uniform vec2 u_res; uniform float u_width;
@@ -884,7 +369,7 @@ uniform vec2 u_xmeta; uniform vec2 u_ymeta; uniform int u_xmode; uniform int u_y
 in float a_len0; in float a_len1;
 out float v_off; out float v_dash;
 const vec2 corners[4] = vec2[4](vec2(0.,-1.), vec2(0.,1.), vec2(1.,-1.), vec2(1.,1.));
-${AXIS_GLSL}
+${I}
 void main() {
   float px0 = u_transitionActive == 1 ? mix(a_prevx, ax0, u_transitionProgress) : ax0;
   float py0 = u_transitionActive == 1 ? mix(a_prevy, ay0, u_transitionProgress) : ay0;
@@ -909,8 +394,7 @@ void main() {
   // CPU-computed per-vertex lengths so dashes stay continuous across segments
   // and constant on screen through zoom.
   v_dash = mix(a_len0, mix(a_len0, a_len1, reveal), c.x);
-}`;
-const LINE_FS = `#version 300 es
+}`,ye=`#version 300 es
 precision highp float; precision highp int;
 uniform vec4 u_color; uniform float u_width;
 uniform int u_dashCount; uniform float u_dashArr[8]; uniform float u_dashPeriod;
@@ -938,8 +422,7 @@ void main() {
   }
   if (alpha <= 0.001) discard;
   outColor = vec4(u_color.rgb * alpha, alpha);
-}`;
-const SEGMENT_VS = `#version 300 es
+}`,be=`#version 300 es
 in float ax0; in float ay0; in float ax1; in float ay1; in float a_cval; in vec4 a_rgba; in vec4 a_style;
 in float a_dash0; in float a_dashDir;
 uniform vec2 u_xmap; uniform vec2 u_ymap; uniform vec2 u_res; uniform float u_width;
@@ -949,7 +432,7 @@ uniform vec2 u_x0meta; uniform vec2 u_x1meta; uniform vec2 u_y0meta; uniform vec
 uniform int u_x0mode; uniform int u_x1mode; uniform int u_y0mode; uniform int u_y1mode;
 out float v_off; out float v_cval; out float v_dash; out vec4 v_rgba; out vec4 v_style;
 const vec2 corners[4] = vec2[4](vec2(0.,-1.), vec2(0.,1.), vec2(1.,-1.), vec2(1.,1.));
-${AXIS_GLSL}
+${I}
 void main() {
   vec2 p0 = vec2(xyMap(ax0, u_xmap, u_x0meta, u_x0mode), xyMap(ay0, u_ymap, u_y0meta, u_y0mode));
   vec2 p1 = vec2(xyMap(ax1, u_xmap, u_x1meta, u_x1mode), xyMap(ay1, u_ymap, u_y1meta, u_y1mode));
@@ -971,8 +454,7 @@ void main() {
   v_cval = u_colorMode == 2 ? (a_cval + 0.5) / 256.0 : a_cval;
   v_dash = a_dash0 + c.x * len * a_dashDir;
   v_rgba = a_rgba; v_style = a_style;
-}`;
-const SEGMENT_FS = `#version 300 es
+}`,xe=`#version 300 es
 precision highp float; precision highp int;
 uniform vec4 u_color; uniform float u_width; uniform int u_colorMode; uniform sampler2D u_lut; uniform float u_opacity;
 uniform int u_dashCount; uniform float u_dashArr[8]; uniform float u_dashPeriod;
@@ -999,8 +481,7 @@ void main() {
   }
   if (alpha <= 0.001) discard;
   outColor = vec4(rgb * alpha, alpha);
-}`;
-const MESH_VS = `#version 300 es
+}`,Se=`#version 300 es
 in float ax0; in float ay0; in float ax1; in float ay1; in float ax2; in float ay2; in float a_cval;
 in vec4 a_rgba; in vec4 a_style; in vec4 a_stroke;
 uniform vec2 u_xmap; uniform vec2 u_ymap;
@@ -1010,7 +491,7 @@ uniform int u_x0mode; uniform int u_x1mode; uniform int u_x2mode;
 uniform int u_y0mode; uniform int u_y1mode; uniform int u_y2mode;
 uniform int u_colorMode;
 out float v_cval; out vec3 v_bary; out vec4 v_rgba; out vec4 v_style; out vec4 v_stroke;
-${AXIS_GLSL}
+${I}
 void main() {
   int vertex = gl_VertexID % 3;
   float x = vertex == 0 ? ax0 : (vertex == 1 ? ax1 : ax2);
@@ -1023,8 +504,7 @@ void main() {
   v_cval = u_colorMode == 2 ? (a_cval + 0.5) / 256.0 : a_cval;
   v_bary = vertex == 0 ? vec3(1.,0.,0.) : (vertex == 1 ? vec3(0.,1.,0.) : vec3(0.,0.,1.));
   v_rgba = a_rgba; v_style = a_style; v_stroke = a_stroke;
-}`;
-const MESH_FS = `#version 300 es
+}`,Ce=`#version 300 es
 precision highp float; precision highp int;
 uniform vec4 u_color; uniform int u_colorMode; uniform sampler2D u_lut; uniform float u_opacity;
 uniform vec4 u_stroke; uniform float u_strokeWidth; uniform int u_strokeMode; uniform float u_strokeOpacity;
@@ -1047,8 +527,7 @@ void main() {
   } else {
     outColor = fill;
   }
-}`;
-const GRAD_GLSL = `
+}`,we=`
 uniform int u_gradMode; uniform int u_gradDir; uniform int u_gradCount;
 uniform float u_gradPos[8]; uniform vec4 u_gradColor[8];
 vec4 xyGradSample(float t) {
@@ -1071,8 +550,7 @@ float xyGradT(float markT, vec2 res) {
     t = u_gradDir == 0 ? 1.0 - markT : markT;
   }
   return clamp(t, 0.0, 1.0);
-}`;
-const AREA_VS = `#version 300 es
+}`,Te=`#version 300 es
 in float ax0; in float ax1; in float ay0; in float ay1; in float ab0; in float ab1;
 uniform vec2 u_xmap; uniform vec2 u_ymap; uniform vec2 u_bmap;
 uniform vec2 u_xmeta; uniform vec2 u_ymeta; uniform vec2 u_bmeta;
@@ -1080,7 +558,7 @@ uniform int u_xmode; uniform int u_ymode;
 uniform float u_revealProgress; uniform float u_revealSegments;
 out float v_top; out float v_base; out float v_pos;
 const vec2 corners[4] = vec2[4](vec2(0.,0.), vec2(1.,0.), vec2(0.,1.), vec2(1.,1.));
-${AXIS_GLSL}
+${I}
 void main() {
   vec2 c = corners[gl_VertexID];
   float x0 = xyMap(ax0, u_xmap, u_xmeta, u_xmode);
@@ -1105,14 +583,13 @@ void main() {
   v_base = base;
   v_pos = clipY;
   gl_Position = vec4(mix(x0, x1, c.x), clipY, 0.0, 1.0);
-}`;
-const AREA_FS = `#version 300 es
+}`,Ee=`#version 300 es
 precision highp float; precision highp int;
 uniform vec4 u_color;
 uniform vec2 u_res;
 in float v_top; in float v_base; in float v_pos;
 out vec4 outColor;
-${GRAD_GLSL}
+${we}
 void main() {
   vec4 premult = vec4(u_color.rgb * u_color.a, u_color.a);
   if (u_gradMode != 0) {
@@ -1124,8 +601,7 @@ void main() {
   }
   if (premult.a <= 0.001) discard;
   outColor = premult;
-}`;
-const RECT_VS = `#version 300 es
+}`,De=`#version 300 es
 in float ax0; in float ax1; in float ay0; in float ay1;
 uniform vec2 u_x0map; uniform vec2 u_x1map; uniform vec2 u_y0map; uniform vec2 u_y1map;
 uniform vec2 u_x0meta; uniform vec2 u_x1meta; uniform vec2 u_y0meta; uniform vec2 u_y1meta;
@@ -1138,7 +614,7 @@ out float v_lutCoord;
 out vec2 v_local; out vec2 v_half; out float v_t;
 out vec4 v_rgba; out vec4 v_style; out vec4 v_stroke; out vec2 v_radius;
 const vec2 corners[4] = vec2[4](vec2(0.,0.), vec2(1.,0.), vec2(0.,1.), vec2(1.,1.));
-${AXIS_GLSL}
+${I}
 void main() {
   vec2 c = corners[gl_VertexID];
   float x0 = xyMap(ax0, u_x0map, u_x0meta, u_xmode) + u_edgePad.x;
@@ -1155,8 +631,7 @@ void main() {
   v_t = c.y;
   v_rgba = a_rgba; v_style = a_style; v_stroke = a_stroke; v_radius = a_radius;
   gl_Position = vec4(mix(x0, x1, c.x), mix(y0, y1, c.y), 0.0, 1.0);
-}`;
-const BAR_VS = `#version 300 es
+}`,Oe=`#version 300 es
 in float a_pos; in float a_v0; in float a_v1; in float a_cval;
 in float a_prevx; in float a_prevy; in float a_prevx1;
 in vec4 a_rgba; in vec4 a_style; in vec4 a_stroke; in vec2 a_radius;
@@ -1173,7 +648,7 @@ out float v_lutCoord;
 out vec2 v_local; out vec2 v_half; out float v_t;
 out vec4 v_rgba; out vec4 v_style; out vec4 v_stroke; out vec2 v_radius;
 const vec2 corners[4] = vec2[4](vec2(0.,0.), vec2(1.,0.), vec2(0.,1.), vec2(1.,1.));
-${AXIS_GLSL}
+${I}
 void main() {
   vec2 c = corners[gl_VertexID];
   float nextP = xyMap(a_pos, u_pmap, u_pmeta, u_pmode);
@@ -1212,8 +687,7 @@ void main() {
   v_half = abs(pB - pA) * 0.5;
   v_local = vec2(mix(pA.x, pB.x, c.x), mix(pA.y, pB.y, c.y)) - (pA + pB) * 0.5;
   v_rgba = a_rgba; v_style = a_style; v_stroke = a_stroke; v_radius = a_radius;
-}`;
-const RECT_FS = `#version 300 es
+}`,ke=`#version 300 es
 precision highp float; precision highp int;
 uniform vec4 u_color; uniform int u_colorMode; uniform sampler2D u_lut;
 uniform vec2 u_radius; uniform float u_strokeWidth; uniform vec4 u_stroke;
@@ -1224,7 +698,7 @@ in float v_lutCoord;
 in vec2 v_local; in vec2 v_half; in float v_t;
 in vec4 v_rgba; in vec4 v_style; in vec4 v_stroke; in vec2 v_radius;
 out vec4 outColor;
-${GRAD_GLSL}
+${we}
 void main() {
   vec4 paint = u_colorMode == 3 ? v_rgba : (u_colorMode == 0 ? u_color : vec4(texture(u_lut, vec2(clamp(v_lutCoord, 0.0, 1.0), 0.5)).rgb, 1.0));
   float alpha = (v_style.y >= 0.0 ? v_style.y : paint.a) * v_style.x * u_opacity;
@@ -1261,591 +735,10 @@ void main() {
   }
   if (premult.a <= 0.001) discard;
   outColor = premult;
-}`;
-function xyMonotoneTangents(x, y, n) {
-const d = new Float64Array(n - 1);
-const m = new Float64Array(n);
-for (let i = 0; i < n - 1; i++) {
-const dx = x[i + 1] - x[i];
-d[i] = dx > 0 ? (y[i + 1] - y[i]) / dx : 0;
-}
-m[0] = d[0];
-m[n - 1] = d[n - 2];
-for (let i = 1; i < n - 1; i++) m[i] = d[i - 1] * d[i] <= 0 ? 0 : (d[i - 1] + d[i]) * 0.5;
-for (let i = 0; i < n - 1; i++) {
-if (d[i] === 0) { m[i] = 0; m[i + 1] = 0; continue; }
-const a = m[i] / d[i];
-const b = m[i + 1] / d[i];
-const s = a * a + b * b;
-if (s > 9) {
-const t = 3 / Math.sqrt(s);
-m[i] = t * a * d[i];
-m[i + 1] = t * b * d[i];
-}
-}
-return m;
-}
-function xySmoothResample(x, y, extra, n, maxOut) {
-if (n < 3) return null;
-const sub = Math.max(1, Math.min(16, Math.floor(maxOut / n)));
-if (sub <= 1) return null;
-for (let i = 0; i < n; i++) {
-if (!Number.isFinite(x[i]) || !Number.isFinite(y[i])) return null;
-if (i > 0 && x[i] < x[i - 1]) return null;
-if (extra && !Number.isFinite(extra[i])) return null;
-}
-const my = xyMonotoneTangents(x, y, n);
-const me = extra ? xyMonotoneTangents(x, extra, n) : null;
-const outN = (n - 1) * sub + 1;
-const ox = new Float32Array(outN);
-const oy = new Float32Array(outN);
-const oe = extra ? new Float32Array(outN) : null;
-let k = 0;
-for (let i = 0; i < n - 1; i++) {
-const h = x[i + 1] - x[i];
-for (let s = 0; s < sub; s++) {
-const t = s / sub;
-ox[k] = x[i] + h * t;
-if (h > 0) {
-const t2 = t * t;
-const t3 = t2 * t;
-const h00 = 2.0 * t3 - 3.0 * t2 + 1.0;
-const h10 = t3 - 2.0 * t2 + t;
-const h01 = -2.0 * t3 + 3.0 * t2;
-const h11 = t3 - t2;
-oy[k] = h00 * y[i] + h10 * h * my[i] + h01 * y[i + 1] + h11 * h * my[i + 1];
-if (oe) oe[k] = h00 * extra[i] + h10 * h * me[i] + h01 * extra[i + 1] + h11 * h * me[i + 1];
-} else {
-oy[k] = y[i];
-if (oe) oe[k] = extra[i];
-}
-k++;
-}
-}
-ox[k] = x[n - 1];
-oy[k] = y[n - 1];
-if (oe) oe[k] = extra[n - 1];
-return { x: ox, y: oy, extra: oe, n: outN };
-}
-const LOD_DIRECT_POINT_BUDGET = 200000;
-const LOD_DRILL_EXIT_FACTOR = 1.15;
-function lodFade(view, start, duration = 140) {
-if (start === undefined || start === null || duration <= 0 || view._prefersReducedMotion()) {
-return 1;
-}
-const t = Math.min(1, Math.max(0, (view._now() - start) / duration));
-return t * t * (3 - 2 * t);
-}
-function lodDecodeLogU8(buf, maxVal) {
-const u8 = buf instanceof ArrayBuffer ? new Uint8Array(buf) : new Uint8Array(buf.buffer, buf.byteOffset, buf.byteLength);
-const out = new Float32Array(u8.length);
-const denom = Math.log1p(Math.max(0, maxVal || 0));
-if (denom > 0) {
-for (let i = 0; i < u8.length; i++) {
-if (u8[i] > 0) out[i] = Math.expm1((u8[i] / 255) * denom);
-}
-}
-return out;
-}
-function lodCopyGrid(f32) {
-return f32.slice ? f32.slice() : new Float32Array(f32);
-}
-function lodWriteGridTexture(gl, tex, f32, w, h, maxVal) {
-const data = new Uint8Array(f32.length);
-const denom = Math.log1p(Math.max(0, maxVal || 0));
-if (denom > 0) {
-for (let i = 0; i < f32.length; i++) {
-const c = f32[i];
-if (c > 0 && Number.isFinite(c)) {
-data[i] = Math.max(1, Math.min(255, Math.round(255 * Math.log1p(c) / denom)));
-}
-}
-}
-gl.bindTexture(gl.TEXTURE_2D, tex);
-const align = gl.getParameter(gl.UNPACK_ALIGNMENT);
-gl.pixelStorei(gl.UNPACK_ALIGNMENT, 1);
-gl.texImage2D(gl.TEXTURE_2D, 0, gl.R8, w, h, 0, gl.RED, gl.UNSIGNED_BYTE, data);
-gl.pixelStorei(gl.UNPACK_ALIGNMENT, align);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-}
-function lodNormMax(g, nextMax) {
-if (!Number.isFinite(nextMax) || nextMax <= 0) {
-g.densityNormMax = 0;
-return 0;
-}
-const prev = Number.isFinite(g.densityNormMax) && g.densityNormMax > 0
-? g.densityNormMax
-: nextMax;
-const norm = nextMax > prev
-? prev * 0.3 + nextMax * 0.7
-: Math.max(nextMax, prev * 0.86);
-g.densityNormMax = norm;
-return norm;
-}
-function lodStartNormAnim(view, g, start, target) {
-if (!g.density || !g.density.grid || !Number.isFinite(target) || target <= 0) {
-g._densityNormAnim = null;
-return;
-}
-const ratio = Math.abs(Math.log(Math.max(start, 1e-12) / Math.max(target, 1e-12)));
-if (view._prefersReducedMotion() || ratio < 0.02) {
-g._densityNormAnim = null;
-g.density.normMax = target;
-g.densityNormMax = target;
-lodWriteGridTexture(view.gl, g.density.tex, g.density.grid, g.density.w, g.density.h, target);
-return;
-}
-g._densityNormAnim = {
-start,
-target,
-startedAt: view._now(),
-duration: target < start ? 420 : 260,
-};
-}
-function lodStepNorm(view, g) {
-const anim = g._densityNormAnim;
-const d = g.density;
-if (!anim || !d || !d.grid || !d.tex) return;
-const t = Math.min(1, Math.max(0, (view._now() - anim.startedAt) / anim.duration));
-const k = t * t * (3 - 2 * t);
-const norm = anim.start + (anim.target - anim.start) * k;
-const prev = d.normMax || 0;
-const rel = Math.abs(norm - prev) / Math.max(Math.abs(norm), Math.abs(prev), 1);
-if (rel > 0.004 || t >= 1) {
-d.normMax = norm;
-g.densityNormMax = norm;
-lodWriteGridTexture(view.gl, d.tex, d.grid, d.w, d.h, norm);
-}
-if (t < 1) {
-view.draw();
-return;
-}
-d.normMax = anim.target;
-g.densityNormMax = anim.target;
-g._densityNormAnim = null;
-}
-function lodDensityArea(d) {
-return Math.abs((d.xRange[1] - d.xRange[0]) * (d.yRange[1] - d.yRange[0]));
-}
-function lodWindowArea(win) {
-if (!win) return 0;
-return Math.abs((win.x1 - win.x0) * (win.y1 - win.y0));
-}
-function lodWindowCenterInside(win, view) {
-if (!win || !view) return false;
-const cx = (view.x0 + view.x1) / 2;
-const cy = (view.y0 + view.y1) / 2;
-return (
-cx >= Math.min(win.x0, win.x1) &&
-cx <= Math.max(win.x0, win.x1) &&
-cy >= Math.min(win.y0, win.y1) &&
-cy <= Math.max(win.y0, win.y1)
-);
-}
-function lodDensityForView(view, g) {
-const cache = g.densityCache || (g.density ? [g.density] : []);
-let best = null;
-let broadest = null;
-for (const d of cache) {
-if (!d || !d.tex) continue;
-if (!broadest || lodDensityArea(d) > lodDensityArea(broadest)) broadest = d;
-if (!view._viewInsideRange(d.xRange, d.yRange)) continue;
-if (!best || lodDensityArea(d) < lodDensityArea(best)) best = d;
-}
-return best || broadest || g.density;
-}
-function lodHoldPendingDrill(view, g, d) {
-const pending = g._lodPendingView;
-if (!d || !pending || g._drillDying) return false;
-if (g._lodPendingSeq !== view.seq) return false;
-if (g._lodPendingAt && view._now() - g._lodPendingAt > 1200) return false;
-if (!lodWindowCenterInside(d.win, pending)) return false;
-const drillArea = lodWindowArea(d.win);
-const pendingArea = lodWindowArea(pending);
-if (!Number.isFinite(drillArea) || !Number.isFinite(pendingArea) || drillArea <= 0) return false;
-const baseVisible = Number.isFinite(d.visible) ? d.visible : d.n;
-if (!Number.isFinite(baseVisible) || baseVisible <= 0) return false;
-const estimatedVisible = baseVisible * Math.max(1, pendingArea / drillArea);
-return estimatedVisible <= LOD_DIRECT_POINT_BUDGET * LOD_DRILL_EXIT_FACTOR;
-}
-function lodDensityPinned(g, d) {
-return d === g.density || d === g.prevDensity || d === g._densitySwitchPrev ||
-d === g._shownDensity || d === g._homeDensity;
-}
-function lodRememberDensity(view, g, d) {
-if (!d || !d.tex) return;
-d._stamp = ++view._densityStamp;
-if (!g.densityCache) g.densityCache = [];
-if (!g.densityCache.includes(d)) g.densityCache.push(d);
-const maxCached = 8;
-while (g.densityCache.length > maxCached) {
-let drop = -1;
-for (let i = 0; i < g.densityCache.length; i++) {
-const cand = g.densityCache[i];
-if (lodDensityPinned(g, cand)) continue;
-if (drop < 0) { drop = i; continue; }
-const dropArea = lodDensityArea(g.densityCache[drop]);
-const candArea = lodDensityArea(cand);
-if (candArea < dropArea || (candArea === dropArea && cand._stamp < g.densityCache[drop]._stamp)) {
-drop = i;
-}
-}
-if (drop < 0) break;
-const old = g.densityCache.splice(drop, 1)[0];
-if (!lodDensityPinned(g, old)) view.gl.deleteTexture(old.tex);
-}
-}
-function lodApplyDrill(view, g, upd, buffers) {
-const gl = view.gl;
-const fresh = !g.drill;
-let d = g.drill;
-if (!d) {
-d = g.drill = { trace: g.trace, xBuf: gl.createBuffer(), yBuf: gl.createBuffer() };
-}
-d.trace = { ...g.trace, style: upd.style || g.trace.style || {} };
-d.xAxis = g.xAxis;
-d.yAxis = g.yAxis;
-const xs = view._asF32(buffers[upd.x.buf]);
-const ys = view._asF32(buffers[upd.y.buf]);
-gl.bindBuffer(gl.ARRAY_BUFFER, d.xBuf);
-gl.bufferData(gl.ARRAY_BUFFER, xs, gl.STATIC_DRAW);
-gl.bindBuffer(gl.ARRAY_BUFFER, d.yBuf);
-gl.bufferData(gl.ARRAY_BUFFER, ys, gl.STATIC_DRAW);
-d.xMeta = { offset: upd.x.offset, scale: upd.x.scale };
-d.yMeta = { offset: upd.y.offset, scale: upd.y.scale };
-d.win = { x0: upd.x_range[0], x1: upd.x_range[1], y0: upd.y_range[0], y1: upd.y_range[1] };
-d.n = Math.min(upd.x.len, upd.y.len);
-d.visible = upd.visible ?? d.n;
-d.seq = upd.drill_seq;
-d.selActive = false;
-lodRestoreBrushMask(view, d, xs, ys);
-view._hoverId = -1;
-view._lastRow = null;
-d.colorMode = 0;
-d.color = parseColor(view.root, upd.color && upd.color.color, [0.3, 0.47, 0.66, 1]);
-if (upd.color && upd.color.buf !== undefined) {
-d.colorMode = upd.color.mode === "continuous" ? 1 :
-(upd.color.mode === "categorical" ? 2 : 3);
-const colorValues = upd.color.dtype === "u8"
-? view._asU8(buffers[upd.color.buf])
-: view._asF32(buffers[upd.color.buf]);
-const colorBufferName = d.colorMode === 3 ? "rgbaBuf" : "cBuf";
-if (!d[colorBufferName]) d[colorBufferName] = gl.createBuffer();
-d[colorBufferName]._fcType = colorValues instanceof Uint8Array ? gl.UNSIGNED_BYTE : gl.FLOAT;
-gl.bindBuffer(gl.ARRAY_BUFFER, d[colorBufferName]);
-gl.bufferData(gl.ARRAY_BUFFER, colorValues, gl.STATIC_DRAW);
-if (d.colorMode !== 3) {
-d.lut = upd.color.mode === "continuous"
-? view._lut(upd.color.colormap)
-: view._paletteLut(upd.color.palette);
-}
-}
-d.sizeMode = 0;
-d.size = (upd.size && upd.size.size) || 4.0;
-d.sizeRange = [2, 18];
-if (upd.size && upd.size.mode === "continuous") {
-d.sizeMode = 1;
-if (!d.sBuf) d.sBuf = gl.createBuffer();
-gl.bindBuffer(gl.ARRAY_BUFFER, d.sBuf);
-gl.bufferData(gl.ARRAY_BUFFER, view._asF32(buffers[upd.size.buf]), gl.STATIC_DRAW);
-d.sizeRange = upd.size.range_px;
-}
-const styleChannel = (name) => upd.channels && upd.channels[name];
-const artistScalar = Number(d.trace.style && d.trace.style.artist_alpha);
-if (styleChannel("opacity") || styleChannel("artist_alpha") ||
-styleChannel("stroke_width") || styleChannel("symbol") || Number.isFinite(artistScalar)) {
-const values = new Float32Array(d.n * 4);
-for (let i = 0; i < d.n; i++) {
-values[i * 4] = 1;
-values[i * 4 + 1] = Number.isFinite(artistScalar) ? artistScalar : -1;
-values[i * 4 + 2] = -1;
-values[i * 4 + 3] = -1;
-}
-const copy = (name, component, scale = 1) => {
-const spec = styleChannel(name);
-if (!spec) return;
-const source = spec.dtype === "u8"
-? view._asU8(buffers[spec.buf])
-: view._asF32(buffers[spec.buf]);
-const components = spec.components || 1;
-for (let i = 0; i < d.n; i++) values[i * 4 + component] = source[i * components] * scale;
-};
-copy("opacity", 0);
-copy("artist_alpha", 1);
-copy("stroke_width", 2, view.dpr);
-copy("symbol", 3);
-if (!d.styleBuf) d.styleBuf = gl.createBuffer();
-d.styleBuf._fcType = gl.FLOAT;
-gl.bindBuffer(gl.ARRAY_BUFFER, d.styleBuf);
-gl.bufferData(gl.ARRAY_BUFFER, values, gl.STATIC_DRAW);
-}
-if (upd.stroke && upd.stroke.mode === "direct_rgba") {
-const values = view._asU8(buffers[upd.stroke.buf]);
-if (!d.strokeBuf) d.strokeBuf = gl.createBuffer();
-d.strokeBuf._fcType = gl.UNSIGNED_BYTE;
-gl.bindBuffer(gl.ARRAY_BUFFER, d.strokeBuf);
-gl.bufferData(gl.ARRAY_BUFFER, values, gl.STATIC_DRAW);
-}
-view._pointMarkStyle(d, d.trace);
-if (upd.density_val && upd.density_val.buf !== undefined) {
-if (!d.dBuf) d.dBuf = gl.createBuffer();
-gl.bindBuffer(gl.ARRAY_BUFFER, d.dBuf);
-gl.bufferData(gl.ARRAY_BUFFER, view._asF32(buffers[upd.density_val.buf]), gl.STATIC_DRAW);
-d.dlut = view._lut(upd.density_colormap || "viridis");
-const first = d.lodBlend === undefined;
-d.lodBlend = Math.min(1, upd.lod_blend ?? 0);
-if (first) d.lodBlendShown = d.lodBlend;
-} else {
-d.lodBlend = 0;
-}
-if (fresh) {
-g._drillFadeStart = view._now();
-g._drillWasInside = false;
-g._drillShownAlpha = 0;
-g._drillExitFadeStart = null;
-g._drillDying = false;
-g._drillDiedInsideWin = false;
-return;
-}
-if (g._drillDying || g._drillExitFadeStart != null) {
-lodEnterDrillContinuous(view, g);
-}
-g._drillDying = false;
-g._drillDiedInsideWin = false;
-}
-function lodRestoreBrushMask(view, d, xs, ys) {
-const b = view._lastBrush;
-if (!b || !d.n) return;
-const ox = d.xMeta.offset, sx = d.xMeta.scale || 1;
-const oy = d.yMeta.offset, sy = d.yMeta.scale || 1;
-const mask = new Float32Array(d.n);
-if (b.mode === "box") {
-for (let i = 0; i < d.n; i++) {
-const x = xs[i] / sx + ox, y = ys[i] / sy + oy;
-if (x >= b.x0 && x <= b.x1 && y >= b.y0 && y <= b.y1) mask[i] = 1;
-}
-} else if (b.mode === "poly" && Array.isArray(b.points) && b.points.length >= 3) {
-const pts = b.points;
-for (let i = 0; i < d.n; i++) {
-const x = xs[i] / sx + ox, y = ys[i] / sy + oy;
-let hit = false;
-for (let a = 0, z = pts.length - 1; a < pts.length; z = a++) {
-const [xa, ya] = pts[a], [xz, yz] = pts[z];
-if ((ya > y) !== (yz > y) && x < ((xz - xa) * (y - ya)) / (yz - ya) + xa) hit = !hit;
-}
-if (hit) mask[i] = 1;
-}
-} else {
-return;
-}
-view._applySelMask(d, mask);
-}
-function lodDropDrill(view, g) {
-const d = g.drill;
-if (!d) return;
-const gl = view.gl;
-view._deleteVaos(d);
-for (const b of [d.xBuf, d.yBuf, d.cBuf, d.rgbaBuf, d.sBuf, d.styleBuf,
-d.strokeBuf, d.selBuf, d.dBuf]) if (b) gl.deleteBuffer(b);
-g.drill = null;
-g._drillFadeStart = null;
-g._drillExitFadeStart = null;
-g._drillWasInside = false;
-g._drillShownAlpha = null;
-g._drillDying = false;
-g._drillDiedInsideWin = false;
-view._hoverId = -1;
-view._lastRow = null;
-view._updatePickable();
-}
-function lodMarkDrillDying(view, g) {
-if (!g.drill) return;
-g._drillDying = true;
-g._drillDiedInsideWin = view._viewInside(g.drill.win);
-lodBeginDrillExitContinuous(view, g);
-}
-function lodDrillExitFade(view, g) {
-if (g._drillExitFadeStart === undefined || g._drillExitFadeStart === null) {
-g._drillExitFadeStart = view._now();
-}
-const fade = lodFade(view, g._drillExitFadeStart, LOD_EXIT_FADE_MS);
-if (fade >= 1) g._drillExitFadeStart = null;
-return fade;
-}
-const LOD_ENTRY_FADE_MS = 140;
-const LOD_EXIT_FADE_MS = 120;
-function lodFadeInvert(alpha) {
-const a = Math.min(1, Math.max(0, alpha));
-return 0.5 - Math.sin(Math.asin(1 - 2 * a) / 3);
-}
-function lodDrillShownAlpha(view, g) {
-if (g._drillExitFadeStart != null) {
-return 1 - lodFade(view, g._drillExitFadeStart, LOD_EXIT_FADE_MS);
-}
-if (g._drillFadeStart != null) {
-return lodFade(view, g._drillFadeStart, LOD_ENTRY_FADE_MS);
-}
-if (g._drillShownAlpha != null) return g._drillShownAlpha;
-return g._drillWasInside ? 1 : 0;
-}
-function lodEnterDrillContinuous(view, g) {
-const alpha = lodDrillShownAlpha(view, g);
-g._drillShownAlpha = alpha;
-g._drillExitFadeStart = null;
-g._drillFadeStart =
-alpha >= 1 ? null : view._now() - LOD_ENTRY_FADE_MS * lodFadeInvert(alpha);
-}
-function lodBeginDrillExitContinuous(view, g) {
-if (g._drillExitFadeStart != null) return;
-const alpha = lodDrillShownAlpha(view, g);
-g._drillShownAlpha = alpha;
-g._drillFadeStart = null;
-g._drillExitFadeStart = view._now() - LOD_EXIT_FADE_MS * lodFadeInvert(1 - alpha);
-}
-function lodApplyDensityUpdate(view, g, upd, buffers) {
-lodMarkDrillDying(view, g);
-const d = upd.density;
-const grid = d.enc === "log-u8"
-? lodDecodeLogU8(buffers[d.buf], d.max)
-: lodCopyGrid(view._asF32(buffers[d.buf]));
-const normStart = lodNormMax(g, d.max);
-const normMax = view._prefersReducedMotion() ? d.max : normStart;
-g.densityNormMax = normMax;
-g.prevDensity = g.density;
-g._densityFadeStart = view._now();
-g.density = {
-w: d.w, h: d.h, max: d.max, normMax, colormap: d.colormap || g.density.colormap,
-color: d.color ? parseColor(view.root, d.color, [0.3, 0.47, 0.66, 1]) : g.density.color,
-xRange: d.x_range, yRange: d.y_range,
-grid,
-tex: view._uploadGrid(grid, d.w, d.h, normMax),
-lut: g.density.lut,
-};
-if (Object.prototype.hasOwnProperty.call(d, "sample")) {
-view._applyDensitySample(g, d.sample, buffers);
-}
-lodStartNormAnim(view, g, normMax, d.max);
-lodRememberDensity(view, g, g.density);
-}
-function lodDrawDensityWithFade(view, g, density, opacityScale = 1) {
-if (density !== g._shownDensity) {
-if (density === g._densitySwitchPrev && g._densitySwitchFadeStart != null) {
-const f = lodFade(view, g._densitySwitchFadeStart, 140);
-g._densitySwitchFadeStart = view._now() - 140 * lodFadeInvert(1 - f);
-} else {
-g._densitySwitchFadeStart = view._now();
-}
-g._densitySwitchPrev = g._shownDensity;
-g._shownDensity = density;
-}
-const prev = g._densitySwitchPrev;
-const fade = prev && prev.tex ? lodFade(view, g._densitySwitchFadeStart, 140) : 1;
-if (fade < 1) {
-view._drawDensity(g, prev, (1 - fade) * opacityScale);
-view._drawDensity(g, density, fade * opacityScale);
-view.draw();
-return;
-}
-if (fade >= 1) {
-if (g.prevDensity === g._densitySwitchPrev) g.prevDensity = null;
-g._densitySwitchPrev = null;
-g._densitySwitchFadeStart = null;
-if (density === g.density) g._densityFadeStart = null;
-}
-view._drawDensity(g, density, opacityScale);
-}
-function lodDrawDensityTier(view, g, x0, x1, y0, y1) {
-lodStepNorm(view, g);
-const d = g.drill;
-if (d && g._drillDying && !g._drillDiedInsideWin && view._viewInside(d.win)) {
-g._drillDying = false;
-lodEnterDrillContinuous(view, g);
-g._drillWasInside = true;
-}
-const inside = d && !g._drillDying && view._viewInside(d.win);
-const density = lodDensityForView(view, g);
-if (inside) {
-if (!g._drillWasInside || g._drillExitFadeStart != null) lodEnterDrillContinuous(view, g);
-g._drillWasInside = true;
-g._drillExitFadeStart = null;
-const fade = lodFade(view, g._drillFadeStart);
-g._drillShownAlpha = fade;
-g._shownDensity = fade < 1 ? density : null;
-g._densitySwitchPrev = null;
-g._densitySwitchFadeStart = null;
-if (fade < 1 && density && density.tex) {
-view._drawDensity(g, density, 1 - fade);
-view._drawPoints(
-d,
-view._map(d.xMeta, x0, x1, d.xAxis),
-view._map(d.yMeta, y0, y1, d.yAxis),
-fade
-);
-view.draw();
-} else {
-g._drillFadeStart = null;
-view._drawPoints(
-d,
-view._map(d.xMeta, x0, x1, d.xAxis),
-view._map(d.yMeta, y0, y1, d.yAxis)
-);
-}
-} else if (density && density.tex) {
-if (lodHoldPendingDrill(view, g, d)) {
-lodEnterDrillContinuous(view, g);
-const fade = lodFade(view, g._drillFadeStart);
-g._drillShownAlpha = fade;
-if (fade < 1) {
-view._drawDensity(g, density, 1 - fade);
-view._drawPoints(
-d,
-view._map(d.xMeta, x0, x1, d.xAxis),
-view._map(d.yMeta, y0, y1, d.yAxis),
-fade
-);
-view.draw();
-} else {
-g._drillFadeStart = null;
-view._drawPoints(
-d,
-view._map(d.xMeta, x0, x1, d.xAxis),
-view._map(d.yMeta, y0, y1, d.yAxis)
-);
-}
-if (view._viewAnim) view.draw();
-return;
-}
-const exitingDrill = d && g._drillWasInside;
-if (exitingDrill) lodBeginDrillExitContinuous(view, g);
-const exitFade = exitingDrill ? lodDrillExitFade(view, g) : 1;
-if (d) g._drillShownAlpha = exitingDrill && exitFade < 1 ? 1 - exitFade : 0;
-if (exitingDrill && exitFade < 1) {
-lodDrawDensityWithFade(view, g, density, exitFade);
-view._drawPoints(
-d,
-view._map(d.xMeta, x0, x1, d.xAxis),
-view._map(d.yMeta, y0, y1, d.yAxis),
-1 - exitFade
-);
-view.draw();
-} else {
-if (g._drillDying) lodDropDrill(view, g);
-else if (exitingDrill) g._drillWasInside = false;
-lodDrawDensityWithFade(view, g, density);
-view._drawDensitySample(g, x0, x1, y0, y1);
-}
-} else if (d) {
-view._drawPoints(
-d,
-view._map(d.xMeta, x0, x1, d.xAxis),
-view._map(d.yMeta, y0, y1, d.yAxis)
-);
-}
-}
-const XY_REBIN_WORKER_SRC = `
+}`;function Ae(e,t,n){let r=new Float64Array(n-1),i=new Float64Array(n);for(let i=0;i<n-1;i++){let n=e[i+1]-e[i];r[i]=n>0?(t[i+1]-t[i])/n:0}i[0]=r[0],i[n-1]=r[n-2];for(let e=1;e<n-1;e++)i[e]=r[e-1]*r[e]<=0?0:(r[e-1]+r[e])*.5;for(let e=0;e<n-1;e++){if(r[e]===0){i[e]=0,i[e+1]=0;continue}let t=i[e]/r[e],n=i[e+1]/r[e],a=t*t+n*n;if(a>9){let o=3/Math.sqrt(a);i[e]=o*t*r[e],i[e+1]=o*n*r[e]}}return i}function je(e,t,n,r,i){if(r<3)return null;let a=Math.max(1,Math.min(16,Math.floor(i/r)));if(a<=1)return null;for(let i=0;i<r;i++)if(!Number.isFinite(e[i])||!Number.isFinite(t[i])||i>0&&e[i]<e[i-1]||n&&!Number.isFinite(n[i]))return null;let o=Ae(e,t,r),s=n?Ae(e,n,r):null,c=(r-1)*a+1,l=new Float32Array(c),u=new Float32Array(c),d=n?new Float32Array(c):null,f=0;for(let i=0;i<r-1;i++){let r=e[i+1]-e[i];for(let c=0;c<a;c++){let p=c/a;if(l[f]=e[i]+r*p,r>0){let e=p*p,a=e*p,c=2*a-3*e+1,l=a-2*e+p,m=-2*a+3*e,h=a-e;u[f]=c*t[i]+l*r*o[i]+m*t[i+1]+h*r*o[i+1],d&&(d[f]=c*n[i]+l*r*s[i]+m*n[i+1]+h*r*s[i+1])}else u[f]=t[i],d&&(d[f]=n[i]);f++}}return l[f]=e[r-1],u[f]=t[r-1],d&&(d[f]=n[r-1]),{x:l,y:u,extra:d,n:c}}var Me=2e5,Ne=1.15;function L(e,t,n=140){if(t==null||n<=0||e._prefersReducedMotion())return 1;let r=Math.min(1,Math.max(0,(e._now()-t)/n));return r*r*(3-2*r)}function Pe(e,t){let n=e instanceof ArrayBuffer?new Uint8Array(e):new Uint8Array(e.buffer,e.byteOffset,e.byteLength),r=new Float32Array(n.length),i=Math.log1p(Math.max(0,t||0));if(i>0)for(let e=0;e<n.length;e++)n[e]>0&&(r[e]=Math.expm1(n[e]/255*i));return r}function Fe(e){return e.slice?e.slice():new Float32Array(e)}function R(e,t,n,r,i,a){let o=new Uint8Array(n.length),s=Math.log1p(Math.max(0,a||0));if(s>0)for(let e=0;e<n.length;e++){let t=n[e];t>0&&Number.isFinite(t)&&(o[e]=Math.max(1,Math.min(255,Math.round(255*Math.log1p(t)/s))))}e.bindTexture(e.TEXTURE_2D,t);let c=e.getParameter(e.UNPACK_ALIGNMENT);e.pixelStorei(e.UNPACK_ALIGNMENT,1),e.texImage2D(e.TEXTURE_2D,0,e.R8,r,i,0,e.RED,e.UNSIGNED_BYTE,o),e.pixelStorei(e.UNPACK_ALIGNMENT,c),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MIN_FILTER,e.LINEAR),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MAG_FILTER,e.LINEAR),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_WRAP_S,e.CLAMP_TO_EDGE),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_WRAP_T,e.CLAMP_TO_EDGE)}function Ie(e,t){if(!Number.isFinite(t)||t<=0)return e.densityNormMax=0,0;let n=Number.isFinite(e.densityNormMax)&&e.densityNormMax>0?e.densityNormMax:t,r=t>n?n*.3+t*.7:Math.max(t,n*.86);return e.densityNormMax=r,r}function Le(e,t,n,r){if(!t.density||!t.density.grid||!Number.isFinite(r)||r<=0){t._densityNormAnim=null;return}let i=Math.abs(Math.log(Math.max(n,1e-12)/Math.max(r,1e-12)));if(e._prefersReducedMotion()||i<.02){t._densityNormAnim=null,t.density.normMax=r,t.densityNormMax=r,R(e.gl,t.density.tex,t.density.grid,t.density.w,t.density.h,r);return}t._densityNormAnim={start:n,target:r,startedAt:e._now(),duration:r<n?420:260}}function Re(e,t){let n=t._densityNormAnim,r=t.density;if(!n||!r||!r.grid||!r.tex)return;let i=Math.min(1,Math.max(0,(e._now()-n.startedAt)/n.duration)),a=i*i*(3-2*i),o=n.start+(n.target-n.start)*a,s=r.normMax||0;if((Math.abs(o-s)/Math.max(Math.abs(o),Math.abs(s),1)>.004||i>=1)&&(r.normMax=o,t.densityNormMax=o,R(e.gl,r.tex,r.grid,r.w,r.h,o)),i<1){e.draw();return}r.normMax=n.target,t.densityNormMax=n.target,t._densityNormAnim=null}function z(e){return Math.abs((e.xRange[1]-e.xRange[0])*(e.yRange[1]-e.yRange[0]))}function ze(e){return e?Math.abs((e.x1-e.x0)*(e.y1-e.y0)):0}function Be(e,t){if(!e||!t)return!1;let n=(t.x0+t.x1)/2,r=(t.y0+t.y1)/2;return n>=Math.min(e.x0,e.x1)&&n<=Math.max(e.x0,e.x1)&&r>=Math.min(e.y0,e.y1)&&r<=Math.max(e.y0,e.y1)}function Ve(e,t){let n=t.densityCache||(t.density?[t.density]:[]),r=null,i=null;for(let t of n)!t||!t.tex||((!i||z(t)>z(i))&&(i=t),e._viewInsideRange(t.xRange,t.yRange)&&(!r||z(t)<z(r))&&(r=t));return r||i||t.density}function He(e,t,n){let r=t._lodPendingView;if(!n||!r||t._drillDying||t._lodPendingSeq!==e.seq||t._lodPendingAt&&e._now()-t._lodPendingAt>1200||!Be(n.win,r))return!1;let i=ze(n.win),a=ze(r);if(!Number.isFinite(i)||!Number.isFinite(a)||i<=0)return!1;let o=Number.isFinite(n.visible)?n.visible:n.n;return!Number.isFinite(o)||o<=0?!1:o*Math.max(1,a/i)<=Me*Ne}function Ue(e,t){return t===e.density||t===e.prevDensity||t===e._densitySwitchPrev||t===e._shownDensity||t===e._homeDensity}function B(e,t,n){if(!(!n||!n.tex))for(n._stamp=++e._densityStamp,t.densityCache||=[],t.densityCache.includes(n)||t.densityCache.push(n);t.densityCache.length>8;){let n=-1;for(let e=0;e<t.densityCache.length;e++){let r=t.densityCache[e];if(Ue(t,r))continue;if(n<0){n=e;continue}let i=z(t.densityCache[n]),a=z(r);(a<i||a===i&&r._stamp<t.densityCache[n]._stamp)&&(n=e)}if(n<0)break;let r=t.densityCache.splice(n,1)[0];Ue(t,r)||e.gl.deleteTexture(r.tex)}}function We(e,t,n,r){let i=e.gl,a=!t.drill,o=t.drill;o||=t.drill={trace:t.trace,xBuf:i.createBuffer(),yBuf:i.createBuffer()},o.trace={...t.trace,style:n.style||t.trace.style||{}},o.xAxis=t.xAxis,o.yAxis=t.yAxis;let s=e._asF32(r[n.x.buf]),c=e._asF32(r[n.y.buf]);if(i.bindBuffer(i.ARRAY_BUFFER,o.xBuf),i.bufferData(i.ARRAY_BUFFER,s,i.STATIC_DRAW),i.bindBuffer(i.ARRAY_BUFFER,o.yBuf),i.bufferData(i.ARRAY_BUFFER,c,i.STATIC_DRAW),o.xMeta={offset:n.x.offset,scale:n.x.scale},o.yMeta={offset:n.y.offset,scale:n.y.scale},o.win={x0:n.x_range[0],x1:n.x_range[1],y0:n.y_range[0],y1:n.y_range[1]},o.n=Math.min(n.x.len,n.y.len),o.visible=n.visible??o.n,o.seq=n.drill_seq,o.selActive=!1,Ge(e,o,s,c),e._hoverId=-1,e._lastRow=null,o.colorMode=0,o.color=y(e.root,n.color&&n.color.color,[.3,.47,.66,1]),n.color&&n.color.buf!==void 0){o.colorMode=n.color.mode===`continuous`?1:n.color.mode===`categorical`?2:3;let t=n.color.dtype===`u8`?e._asU8(r[n.color.buf]):e._asF32(r[n.color.buf]),a=o.colorMode===3?`rgbaBuf`:`cBuf`;o[a]||(o[a]=i.createBuffer()),o[a]._fcType=t instanceof Uint8Array?i.UNSIGNED_BYTE:i.FLOAT,i.bindBuffer(i.ARRAY_BUFFER,o[a]),i.bufferData(i.ARRAY_BUFFER,t,i.STATIC_DRAW),o.colorMode!==3&&(o.lut=n.color.mode===`continuous`?e._lut(n.color.colormap):e._paletteLut(n.color.palette))}o.sizeMode=0,o.size=n.size&&n.size.size||4,o.sizeRange=[2,18],n.size&&n.size.mode===`continuous`&&(o.sizeMode=1,o.sBuf||=i.createBuffer(),i.bindBuffer(i.ARRAY_BUFFER,o.sBuf),i.bufferData(i.ARRAY_BUFFER,e._asF32(r[n.size.buf]),i.STATIC_DRAW),o.sizeRange=n.size.range_px);let l=e=>n.channels&&n.channels[e],u=Number(o.trace.style&&o.trace.style.artist_alpha);if(l(`opacity`)||l(`artist_alpha`)||l(`stroke_width`)||l(`symbol`)||Number.isFinite(u)){let t=new Float32Array(o.n*4);for(let e=0;e<o.n;e++)t[e*4]=1,t[e*4+1]=Number.isFinite(u)?u:-1,t[e*4+2]=-1,t[e*4+3]=-1;let n=(n,i,a=1)=>{let s=l(n);if(!s)return;let c=s.dtype===`u8`?e._asU8(r[s.buf]):e._asF32(r[s.buf]),u=s.components||1;for(let e=0;e<o.n;e++)t[e*4+i]=c[e*u]*a};n(`opacity`,0),n(`artist_alpha`,1),n(`stroke_width`,2,e.dpr),n(`symbol`,3),o.styleBuf||=i.createBuffer(),o.styleBuf._fcType=i.FLOAT,i.bindBuffer(i.ARRAY_BUFFER,o.styleBuf),i.bufferData(i.ARRAY_BUFFER,t,i.STATIC_DRAW)}if(n.stroke&&n.stroke.mode===`direct_rgba`){let t=e._asU8(r[n.stroke.buf]);o.strokeBuf||=i.createBuffer(),o.strokeBuf._fcType=i.UNSIGNED_BYTE,i.bindBuffer(i.ARRAY_BUFFER,o.strokeBuf),i.bufferData(i.ARRAY_BUFFER,t,i.STATIC_DRAW)}if(e._pointMarkStyle(o,o.trace),n.density_val&&n.density_val.buf!==void 0){o.dBuf||=i.createBuffer(),i.bindBuffer(i.ARRAY_BUFFER,o.dBuf),i.bufferData(i.ARRAY_BUFFER,e._asF32(r[n.density_val.buf]),i.STATIC_DRAW),o.dlut=e._lut(n.density_colormap||`viridis`);let t=o.lodBlend===void 0;o.lodBlend=Math.min(1,n.lod_blend??0),t&&(o.lodBlendShown=o.lodBlend)}else o.lodBlend=0;if(a){t._drillFadeStart=e._now(),t._drillWasInside=!1,t._drillShownAlpha=0,t._drillExitFadeStart=null,t._drillDying=!1,t._drillDiedInsideWin=!1;return}(t._drillDying||t._drillExitFadeStart!=null)&&U(e,t),t._drillDying=!1,t._drillDiedInsideWin=!1}function Ge(e,t,n,r){let i=e._lastBrush;if(!i||!t.n)return;let a=t.xMeta.offset,o=t.xMeta.scale||1,s=t.yMeta.offset,c=t.yMeta.scale||1,l=new Float32Array(t.n);if(i.mode===`box`)for(let e=0;e<t.n;e++){let t=n[e]/o+a,u=r[e]/c+s;t>=i.x0&&t<=i.x1&&u>=i.y0&&u<=i.y1&&(l[e]=1)}else if(i.mode===`poly`&&Array.isArray(i.points)&&i.points.length>=3){let e=i.points;for(let i=0;i<t.n;i++){let t=n[i]/o+a,u=r[i]/c+s,d=!1;for(let n=0,r=e.length-1;n<e.length;r=n++){let[i,a]=e[n],[o,s]=e[r];a>u!=s>u&&t<(o-i)*(u-a)/(s-a)+i&&(d=!d)}d&&(l[i]=1)}}else return;e._applySelMask(t,l)}function Ke(e,t){let n=t.drill;if(!n)return;let r=e.gl;e._deleteVaos(n);for(let e 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n=Xe(e,t);t._drillShownAlpha=n,t._drillExitFadeStart=null,t._drillFadeStart=n>=1?null:e._now()-Ye*H(n)}function Ze(e,t){if(t._drillExitFadeStart!=null)return;let n=Xe(e,t);t._drillShownAlpha=n,t._drillFadeStart=null,t._drillExitFadeStart=e._now()-V*H(1-n)}function Qe(e,t,n,r){qe(e,t);let i=n.density,a=i.enc===`log-u8`?Pe(r[i.buf],i.max):Fe(e._asF32(r[i.buf])),o=Ie(t,i.max),s=e._prefersReducedMotion()?i.max:o;t.densityNormMax=s,t.prevDensity=t.density,t._densityFadeStart=e._now(),t.density={w:i.w,h:i.h,max:i.max,normMax:s,colormap:i.colormap||t.density.colormap,color:i.color?y(e.root,i.color,[.3,.47,.66,1]):t.density.color,xRange:i.x_range,yRange:i.y_range,grid:a,tex:e._uploadGrid(a,i.w,i.h,s),lut:t.density.lut},Object.prototype.hasOwnProperty.call(i,`sample`)&&e._applyDensitySample(t,i.sample,r),Le(e,t,s,i.max),B(e,t,t.density)}function $e(e,t,n,r=1){if(n!==t._shownDensity){if(n===t._densitySwitchPrev&&t._densitySwitchFadeStart!=null){let 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e=this.interaction.default_drag_action;this.interaction.default_drag_action=`auto`;let t=this._resolveDefaultDragAction();return this.interaction.default_drag_action=e,t}_axisCoord(e,t){let n=Number(t);return Number.isFinite(n)?e&&e.scale===`log`?n>0?Math.log10(n):NaN:n:NaN}_axisValue(e,t){return e&&e.scale===`log`?10**t:t}_axisRange(e,t=this.view){let n=t?.ranges?.[e];if(Array.isArray(n))return[n[0],n[1]];if(e===`x`&&t)return[t.x0,t.x1];if(e===`y`&&t)return[t.y0,t.y1];let r=this._axis(e).range||[0,1];return[Number(r[0]),Number(r[1])]}_axisTicks(e,t){let n=this._axis(e),[r,i]=this._axisRange(e);if(Array.isArray(n.tick_values)){let e=Math.min(r,i),t=Math.max(r,i),a=n.tick_values.map(Number).filter(n=>Number.isFinite(n)&&n>=e&&n<=t);return{ticks:a,labels:a,step:a.length>1?Math.abs(a[1]-a[0]):1}}return 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this._listeners)t.target===this.canvas&&(this.canvas.removeEventListener(t.type,t.handler,t.options),e.addEventListener(t.type,t.handler,t.options),t.target=e);this.canvas.replaceWith(e),this.canvas=e,this._glLost=!1,this._lutCache.clear(),this.pickFbo=null,this.pickTex=null;try{this._initGl(this._payload),this._glLost=!1,this._drawNow(),this._assertContextFrameReady(`rebuild`)}catch{this._glLost=!0,this.canvas.dataset.xyCtx=`lost`,this._scheduleContextRecovery();return}this._ctxRecoveryDelay=0,this.canvas.dataset.xyCtx=`live`,X._announceLive(),this._scheduleViewRequest(this.view,{delay:0}),this._dropContextSnapshot()}_armContextVisibilityWatch(){if(this._listen(this.root,`pointerenter`,()=>{this._glLost&&!this._destroyed&&this._recoverContext()}),typeof document<`u`&&this._listen(document,`visibilitychange`,()=>{if(document.visibilityState===`hidden`){X.scheduleHiddenReleases();return}X.cancelHiddenReleases(),document.visibilityState===`visible`&&this._ctxVisible&&this._glLost&&!this._destroyed&&this._recoverContext()}),typeof IntersectionObserver>`u`){this._ctxVisible=!0;return}this._ctxIo=new IntersectionObserver(e=>{let t=e[e.length-1];this._ctxVisible=t.isIntersecting||t.intersectionRatio>0,this._ctxVisible?(this._ctxSeenSeq=X.seq++,this._glLost&&!this._destroyed&&this._recoverContext(),this._healStaleTheme()&&this.draw()):this._destroyed||X._rebalance()},{rootMargin:`25% 0px 25% 0px`}),this._ctxIo.observe(this.root)}_resize(e,t){let n=this.fluid&&e?Math.max(120,Math.round(e)):this.size.w,r=this.fluidH&&t?Math.max(120,Math.round(t)):this.size.h,i=window.devicePixelRatio||1;if(n===this.size.w&&r===this.size.h&&i===this.dpr)return;this.dpr=i,this.size.w=n,this.size.h=r,this._layout();let 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chart`),this.a11ySummary=document.createElement(`div`),this.a11ySummary.id=`${r}-summary`,this.a11ySummary.style.cssText=ot,n.setAttribute(`aria-describedby`,this.a11ySummary.id),n.appendChild(this.a11ySummary),this.a11yLive=document.createElement(`div`),this.a11yLive.id=`${r}-live`,this.a11yLive.setAttribute(`role`,`status`),this.a11yLive.setAttribute(`aria-live`,`polite`),this.a11yLive.setAttribute(`aria-atomic`,`true`),this.a11yLive.style.cssText=ot,n.appendChild(this.a11yLive),t.title){let e=document.createElement(`div`);e.textContent=t.title,e.style.cssText=`position:absolute;top:6px;left:0;right:0;`,this._applySlot(e,`title`),n.appendChild(e)}this.chrome=document.createElement(`canvas`),this.chrome.style.cssText=`position:absolute;inset:0;pointer-events:none;`,this._applySlot(this.chrome,`chrome`),n.appendChild(this.chrome),this.canvas=document.createElement(`canvas`),this.canvas.style.cssText=`position:absolute;left:${this.plot.x}px;top:${this.plot.y}px;width:${this.plot.w}px;height:${this.plot.h}px;touch-action:none;`,this._applySlot(this.canvas,`canvas`),this.canvas.tabIndex=0,this.canvas.setAttribute(`role`,`img`),this.canvas.setAttribute(`aria-describedby`,this.a11ySummary.id),n.appendChild(this.canvas),this.overlay=document.createElement(`canvas`),this.overlay.style.cssText=`position:absolute;inset:0;pointer-events:none;`,n.appendChild(this.overlay),this.labels=document.createElement(`div`),this.labels.style.cssText=`position:absolute;inset:0;pointer-events:none;`,this._applySlot(this.labels,`labels`),n.appendChild(this.labels),this.tooltip=document.createElement(`div`),this.tooltip.style.cssText=`position:absolute;display:none;pointer-events:none;z-index:5;`,this._applySlot(this.tooltip,`tooltip`),this.tooltip.setAttribute(`aria-hidden`,`true`),n.appendChild(this.tooltip),this._buildLegend(n),this._buildColorbar(n),this._buildReductionBadges(n)}_a11yAxisSummary(e,t){let n=this._axis(e),r=n.label?`${t} axis (${n.label})`:`${t} axis`;if(n.kind===`category`){let e=Array.isArray(n.categories)?n.categories:[];if(!e.length)return`${r} uses categories.`;let t=e.slice(0,6).map(e=>String(e)),i=e.length-t.length,a=i>0?`, and ${i} more`:``;return`${r} has ${e.length} categories: ${t.join(`, `)}${a}.`}let i=n.range||[];return i.length<2?null:`${r} ranges from ${N(i[0],n.kind)} to ${N(i[1],n.kind)}.`}_a11ySummaryText(){let e=Array.isArray(this.spec.traces)?this.spec.traces:[],t=[this.spec.title?`${this.spec.title}.`:`Interactive chart.`];t.push(`${e.length} data series.`);let n=e.map(e=>e&&e.name).filter(Boolean).slice(0,6);n.length&&t.push(`Series: ${n.join(`, `)}.`);let r=this._a11yAxisSummary(`x`,`X`),i=this._a11yAxisSummary(`y`,`Y`);return r&&t.push(r),i&&t.push(i),t.join(` `)}_initA11y(){if(!this.a11ySummary||!this.canvas)return;this.a11ySummary.textContent=this._a11ySummaryText();let e=this._pickable?` Use Arrow keys to explore data points in series data order; Home and End jump to the first and last point; Escape closes the readout.`:``;this.canvas.setAttribute(`aria-label`,`Plot area.${e}`)}_compactInt(e){let t=Number(e);return Number.isFinite(t)?Math.round(t).toLocaleString():`0`}_positionReductionBadges(){if(!this._badges)return;let e=this.size.w-(this.plot.x+this.plot.w),t=this.size.h-(this.plot.y+this.plot.h);this._badges.style.right=`${e+6}px`,this._badges.style.bottom=`${t+6}px`}_reductionBadgeItems(){let e=[],t=this.gpuTraces&&this.gpuTraces.length?this.gpuTraces:this.spec.traces||[];for(let n of t){let t=n.trace||n;if(t.tier!==`density`||!t.density)continue;let r=n.sampleOverlay&&n.sampleOverlay.sample?n.sampleOverlay.sample:t.density.sample;r&&Number(r.n)>0&&e.push(`sampled ${this._compactInt(r.n)} of ${this._compactInt(r.visible)}`),n._sampleRebinned&&e.push(`zoom re-binned from sample`),t.density.channels_dropped&&e.push(`aggregated channels`)}return e}_refreshReductionBadges(){if(!this._badges)return;let e=this._reductionBadgeItems();this._badges.textContent=``,this._badges.hidden=e.length===0;for(let t of e){let e=document.createElement(`div`);e.textContent=t,this._applySlot(e,`badge_item`),this._badges.appendChild(e)}this._positionReductionBadges()}_buildReductionBadges(e){let t=this._reductionBadgeItems(),n=(this.spec.traces||[]).some(e=>e.tier===`density`);if(!t.length&&!n)return;let r=document.createElement(`div`);r.style.cssText=`position:absolute;display:flex;flex-direction:column;align-items:flex-end;pointer-events:none;z-index:4;`,this._applySlot(r,`badge`),e.appendChild(r),this._badges=r,this._refreshReductionBadges()}_buildLegend(e){let t=this.spec;this._legends=[];let n=[];if(t.show_legend!==!1){for(let e of t.traces)if(e.tier===`density`)n.push({swatch:`gradient`,cmap:e.density.colormap,name:e.name||`density`});else if(e.color&&e.color.mode===`categorical`)e.color.categories.forEach((t,r)=>n.push({swatch:e.color.palette[r],name:t,symbol:e.kind===`scatter`?e.style?.symbol||`circle`:null,style:e.style||{}}));else if(e.color&&e.color.mode===`continuous`)n.push({swatch:`gradient`,cmap:e.color.colormap,name:e.name||`value`});else if(e.name){let t=e.color&&e.color.color||e.style&&e.style.color,r=[`line`,`segments`,`step`,`stairs`,`errorbar`].includes(e.kind);n.push({swatch:t,name:e.name,symbol:e.kind===`scatter`?e.style?.symbol||`circle`:null,line:r,style:e.style||{}})}n.length&&this._legendBox(e,n,t.legend||{})}for(let n of t.extra_legends||[]){let t=(n.items||[]).map(e=>({swatch:e.style&&e.style.color,name:e.name,symbol:e.kind===`scatter`?e.style?.symbol||`circle`:null,line:[`line`,`segments`,`step`,`stairs`,`errorbar`].includes(e.kind),style:e.style||{}}));t.length&&this._legendBox(e,t,n)}}_legendBox(e,t,n){let r=document.createElement(`div`),i=n.loc||`upper right`,a=Math.max(1,Number(n.ncols)||1),o=a>1;if(r.style.cssText=`position:absolute;display:grid;grid-template-columns:repeat(${o?a:1},max-content);overflow:auto;`,r.dataset.xyLegendLoc=i,this._positionLegend(r,i),this._applySlot(r,`legend`),n.title){let e=document.createElement(`div`);e.textContent=String(n.title),e.style.fontWeight=`600`,e.style.gridColumn=`1 / span ${o?a:1}`,r.appendChild(e)}for(let e of t){let t=document.createElement(`div`);this._applySlot(t,`legend_item`);let n=document.createElement(`span`);n.style.display=`inline-block`,n.style.verticalAlign=`-1px`;let i=e.swatch;if(e.swatch===`gradient`)i=`linear-gradient(90deg,${m(e.cmap).map(e=>`rgb(${e[0]},${e[1]},${e[2]})`).join(`,`)})`,n.style.background=i;else if(e.symbol){let t=`http://www.w3.org/2000/svg`,r=document.createElementNS(t,`svg`);r.setAttribute(`viewBox`,`0 0 18 14`),r.setAttribute(`width`,`18`),r.setAttribute(`height`,`14`);let a=document.createElementNS(t,`path`),o={square:`M4.5 2.5h9v9h-9z`,diamond:`M9 2l5 5-5 5-5-5z`,thin_diamond:`M9 2l3 5-3 5-3-5z`,triangle:`M9 2l-5 10h10z`,triangle_down:`M9 12L4 2h10z`,triangle_left:`M4 7L14 2v10z`,triangle_right:`M14 7L4 2v10z`,plus_line:`M9 2v10M4 7h10`,x_line:`M5 3l8 8M13 3l-8 8`,cross:`M7.5 2h3v3.5H14v3h-3.5V12h-3V8.5H4v-3h3.5z`,x:`M5.5 2L9 5.5 12.5 2 14 3.5 10.5 7 14 10.5 12.5 12 9 8.5 5.5 12 4 10.5 7.5 7 4 3.5z`,pentagon:`M9 2.5L13.28 5.61 11.65 10.64H6.35L4.72 5.61z`,hexagon:`M9 2L13.3 4.5v5L9 12l-4.3-2.5v-5z`,star:`M9 2l1.5 3.1 3.5.5-2.5 2.5.6 3.5L9 10l-3.1 1.6.6-3.5L4 5.6l3.5-.5z`},s=w(this.root,i);e.symbol===`circle`||e.symbol===`point`||e.symbol===`pixel`?e.symbol===`pixel`?a.setAttribute(`d`,`M8.5 6.5h1v1h-1z`):a.setAttribute(`d`,`M9 ${e.symbol===`point`?4.75:2.5}a${e.symbol===`point`?2.25:4.5} ${e.symbol===`point`?2.25:4.5} 0 1 0 0 ${e.symbol===`point`?4.5:9}a${e.symbol===`point`?2.25:4.5} ${e.symbol===`point`?2.25:4.5} 0 1 0 0 -${e.symbol===`point`?4.5:9}`):a.setAttribute(`d`,o[e.symbol]||o.square),a.setAttribute(`fill`,e.symbol.endsWith(`_line`)?`none`:s),a.setAttribute(`stroke`,s),a.setAttribute(`stroke-width`,String(e.style?.stroke_width||1)),r.appendChild(a),n.appendChild(r),n.style.width=`18px`,n.style.height=`14px`}else if(e.line){let t=`http://www.w3.org/2000/svg`,r=document.createElementNS(t,`svg`);r.setAttribute(`viewBox`,`0 0 22 12`),r.setAttribute(`width`,`22`),r.setAttribute(`height`,`12`);let a=document.createElementNS(t,`line`);a.setAttribute(`x1`,`1`),a.setAttribute(`y1`,`6`),a.setAttribute(`x2`,`21`),a.setAttribute(`y2`,`6`),a.setAttribute(`stroke`,w(this.root,i)),a.setAttribute(`stroke-width`,String(e.style?.width??1.5)),e.style?.dash&&e.style.dash.length&&a.setAttribute(`stroke-dasharray`,e.style.dash.join(` `)),r.appendChild(a),n.appendChild(r),n.style.width=`22px`,n.style.height=`12px`}else n.style.background=w(this.root,i);this._applySlot(n,`legend_swatch`),t.appendChild(n),t.appendChild(document.createTextNode(e.name)),r.appendChild(t)}return e.appendChild(r),this._legends.push(r),r}_positionLegend(e,t){if(!e)return;let n=this.size.w-(this.plot.x+this.plot.w),r=t.includes(`left`)?`left`:t.includes(`right`)?`right`:`center`,i=t.includes(`upper`)?`upper`:t.includes(`lower`)?`lower`:`center`,a=r===`left`?this.plot.x+6:r===`center`?this.plot.x+this.plot.w/2:null,o=r===`right`?n+6:null,s=i===`upper`?this.plot.y+6:i===`center`?this.plot.y+this.plot.h/2:null,c=i===`lower`?this.size.h-(this.plot.y+this.plot.h)+6:null;e.style.setProperty(`--xy-legend-left`,a==null?`auto`:a+`px`),e.style.setProperty(`--xy-legend-right`,o==null?`auto`:o+`px`),e.style.setProperty(`--xy-legend-top`,s==null?`auto`:s+`px`),e.style.setProperty(`--xy-legend-bottom`,c==null?`auto`:c+`px`);let l=r===`center`?`-50%`:`0`,u=i===`center`?`-50%`:`0`;e.style.setProperty(`--xy-legend-transform`,`translate(${l},${u})`)}_buildColorbar(e){let t=this.spec.colorbar;if(!t)return;let n=document.createElement(`div`),r=t.orientation===`horizontal`;n.style.cssText=`position:absolute;pointer-events:none;z-index:4;`,this._applySlot(n,`colorbar`);let i=document.createElement(`div`),a=Math.max(0,Number(t.levels)||0),o;if(a>0){let e=h(t.colormap||`viridis`),n=[];for(let t=0;t<a;t++){let r=Math.min(255,Math.round(255*(t+.5)/a)),i=`rgb(${e[r*4]},${e[r*4+1]},${e[r*4+2]})`;n.push(`${i} ${100*t/a}% ${100*(t+1)/a}%`)}o=`linear-gradient(to ${r?`right`:`top`},${n.join(`,`)})`}else{let e=m(t.colormap||`viridis`);o=`linear-gradient(to ${r?`right`:`top`},${e.map(e=>`rgb(${e[0]},${e[1]},${e[2]})`).join(`,`)})`}i.style.cssText=r?`position:absolute;inset:0 0 auto 0;height:${Y}px;`:`position:absolute;inset:0 auto 0 0;width:${Y}px;`,i.style.setProperty(`--xy-colorbar-gradient`,o),this._applySlot(i,`colorbar_bar`),n.appendChild(i);let s=t.domain||[0,1],c=Number(s[0]),l=Number(s[1]),u=l-c||1,d=E(c,l,8),f=Array.isArray(t.ticks),p=f?t.ticks:d.ticks,g=d.step;for(let e of p){let t=Number(e);if(!Number.isFinite(t)||t<Math.min(c,l)||t>Math.max(c,l))continue;let i=document.createElement(`span`);i.textContent=f?ne(t):M(t,g);let a=(t-c)/u;i.style.cssText=r?`position:absolute;left:${100*a}%;top:20px;transform:translateX(-50%);white-space:nowrap;`:`position:absolute;left:23px;top:${100*(1-a)}%;transform:translateY(-50%);white-space:nowrap;`,this._applySlot(i,`colorbar_tick`),n.appendChild(i)}if(t.label){let e=document.createElement(`span`);e.textContent=String(t.label),e.style.cssText=r?`position:absolute;left:50%;top:36px;transform:translateX(-50%);white-space:nowrap;`:`position:absolute;left:58px;top:50%;writing-mode:vertical-rl;transform:translateY(-50%) rotate(180deg);white-space:nowrap;`,this._applySlot(e,`colorbar_title`),n.appendChild(e)}n.title=`${t.label?t.label+`: `:``}${s[0]} – ${s[1]}`,e.appendChild(n),this._colorbar=n,this._colorbarHorizontal=r,this._positionColorbar()}_positionColorbar(){if(!this._colorbar)return;let e=this._colorbarHorizontal,t=!e&&this._compactVerticalColorbar,n=t?it:rt;this._colorbar.style.left=(e?this.plot.x:this.plot.x+this.plot.w+this._rightAxisRoom+n)+`px`,this._colorbar.style.top=(e?this.plot.y+this.plot.h+(this._bottomAxisRoom||8):this.plot.y)+`px`,this._colorbar.style.width=(e?this.plot.w:t?Y:66)+`px`,this._colorbar.style.height=(e?50:Math.max(24,this.plot.h))+`px`,this._colorbar.dataset.xyCompact=t?`true`:`false`;for(let e of this._colorbar.querySelectorAll(`[data-xy-slot="colorbar_tick"], [data-xy-slot="colorbar_title"]`))e.hidden=t}_initGl(e){let t=window.devicePixelRatio||1;this.dpr=t,this.canvas.width=this.plot.w*t,this.canvas.height=this.plot.h*t,this.chrome.width=this.size.w*t,this.chrome.height=this.size.h*t,this.chrome.style.width=this.size.w+`px`,this.chrome.style.height=this.size.h+`px`,this.overlay.width=this.size.w*t,this.overlay.height=this.size.h*t,this.overlay.style.width=this.size.w+`px`,this.overlay.style.height=this.size.h+`px`,X.reserve(this);let n=this.canvas.getContext(`webgl2`,{antialias:!1,premultipliedAlpha:!0,alpha:!0});if(!n)throw X.cancel(this),Error(`webgl2 unavailable`);this.gl=n,X.acquired(this),n.enable(n.BLEND),n.blendFunc(n.ONE,n.ONE_MINUS_SRC_ALPHA),this._progCache=new Map,this._glPrograms=this._progCache,this.quad=n.createBuffer(),this.quad._fcId=++this._bufSeq,n.bindBuffer(n.ARRAY_BUFFER,this.quad),n.bufferData(n.ARRAY_BUFFER,new Float32Array([0,0,1,0,0,1,1,1]),n.STATIC_DRAW),this.quadVao=n.createVertexArray(),n.bindVertexArray(this.quadVao),n.enableVertexAttribArray(P.a_corner),n.vertexAttribPointer(P.a_corner,2,n.FLOAT,!1,0,0),n.vertexAttribDivisor(P.a_corner,0),n.bindVertexArray(null),this.gpuTraces=this.spec.traces.map(t=>this._buildTrace(e,t)),this._updatePickable()}_updatePickable(){this._pickable=this.gpuTraces.some(e=>q(e.trace.kind).pointPick&&(e.tier!==`density`||e.drill)),this._pickable&&!this.pickFbo&&this._initPickTarget(),this._syncModebarSelect?.()}_prog(e,t,n){let r=this._progCache.get(e);return r||(r=ce(this.gl,t,n),this._progCache.set(e,r)),r}get pointProg(){return this._prog(`point`,le,ue)}get pointSimpleProg(){return this._prog(`point-simple`,de,fe)}get lineProg(){return this._prog(`line`,ve,ye)}get segmentProg(){return this._prog(`segment`,be,xe)}get meshProg(){return this._prog(`mesh`,Se,Ce)}get areaProg(){return this._prog(`area`,Te,Ee)}get rectProg(){return this._prog(`rect`,De,ke)}get barProg(){return this._prog(`bar`,Oe,ke)}get pickProg(){return this._prog(`pick`,pe,me)}get densityProg(){return this._prog(`density`,he,ge)}get heatmapProg(){return this._prog(`heatmap`,he,_e)}_lut(e){if(this._lutCache.has(e))return this._lutCache.get(e);let t=this.gl,n=t.createTexture();return t.bindTexture(t.TEXTURE_2D,n),t.texImage2D(t.TEXTURE_2D,0,t.RGBA,256,1,0,t.RGBA,t.UNSIGNED_BYTE,h(e)),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_MIN_FILTER,t.NEAREST),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_MAG_FILTER,t.NEAREST),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_WRAP_S,t.CLAMP_TO_EDGE),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_WRAP_T,t.CLAMP_TO_EDGE),this._lutCache.set(e,n),n}_paletteLut(e){let t=`pal:`+e.join(`,`);if(this._lutCache.has(t))return this._lutCache.get(t);let n=this.gl,r=new Uint8Array(256*4);for(let t=0;t<256;t++){let n=v(e[t%e.length]);r[t*4]=n[0]*255,r[t*4+1]=n[1]*255,r[t*4+2]=n[2]*255,r[t*4+3]=255}let i=n.createTexture();return n.bindTexture(n.TEXTURE_2D,i),n.texImage2D(n.TEXTURE_2D,0,n.RGBA,256,1,0,n.RGBA,n.UNSIGNED_BYTE,r),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_MIN_FILTER,n.NEAREST),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_MAG_FILTER,n.NEAREST),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_WRAP_S,n.CLAMP_TO_EDGE),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_WRAP_T,n.CLAMP_TO_EDGE),this._lutCache.set(t,i),i}_buildTrace(e,t){this.gl;let n={trace:t,tier:t.tier,color:[.3,.47,.66,1],xAxis:typeof t.x_axis==`string`?t.x_axis:`x`,yAxis:typeof t.y_axis==`string`?t.y_axis:`y`};if(t.tier===`density`){let r=t.density,i=this.spec.columns[r.buf],a=this._columnView(e,i),o=r.enc===`log-u8`?Pe(a,r.max):a;return n.densityNormMax=r.max,n.density={w:r.w,h:r.h,max:r.max,normMax:r.max,colormap:r.colormap,color:r.color?y(this.root,r.color,[.3,.47,.66,1]):null,xRange:r.x_range,yRange:r.y_range,grid:Fe(o),tex:this._uploadGrid(o,r.w,r.h,r.max),lut:this._lut(r.colormap)},n.sampleOverlay=this._buildDensitySample(t,r.sample,e),n._shownDensity=n.density,B(this,n,n.density),n}if(q(t.kind).build(this,n,t,e),t.keys&&Number.isInteger(t.keys.lo)&&Number.isInteger(t.keys.hi)){let r=this._columnView(e,this.spec.columns[t.keys.lo]),i=this._columnView(e,this.spec.columns[t.keys.hi]),a=Math.min(n.n||0,r.length,i.length);n._transitionKeys=Array(a),n._transitionKeyIndex=new Map;for(let e=0;e<a;e++){let t=`${i[e]}:${r[e]}`;if(n._transitionKeyIndex.has(t))throw Error(`xy: duplicate binary animation key`);n._transitionKeys[e]=t,n._transitionKeyIndex.set(t,e)}}return n}_buildXY(e,t,n){let r=this._columnView(n,this.spec.columns[t.x]),i=this._columnView(n,this.spec.columns[t.y]);e.xMeta={...this.spec.columns[t.x]},e.yMeta={...this.spec.columns[t.y]},e.n=Math.min(r.length,i.length),e._cpu={x:r,y:i,xMeta:e.xMeta,yMeta:e.yMeta},e.xBuf=this._upload(r),e.yBuf=this._upload(i)}_buildInstanceStyleChannels(e,t,n,r){let i=e=>t.channels&&t.channels[e],a=Number(t.style&&t.style.artist_alpha);if(i(`opacity`)||i(`artist_alpha`)||i(r)||i(`symbol`)||Number.isFinite(a)){let t=new Float32Array(e.n*4);for(let n=0;n<e.n;n++)t[n*4]=1,t[n*4+1]=Number.isFinite(a)?a:-1,t[n*4+2]=-1,t[n*4+3]=-1;let o=(r,a,o=1)=>{let s=i(r);if(!s)return;let c=this._columnView(n,this.spec.columns[s.buf]);for(let n=0;n<e.n;n++)t[n*4+a]=c[n*(s.components||1)]*o};o(`opacity`,0),o(`artist_alpha`,1),o(r,2,this.dpr),o(`symbol`,3),e.styleBuf=this._upload(t)}let o=i(`corner_radius`);if(o){let t=this._columnView(n,this.spec.columns[o.buf]),r=o.components||1,i=new Float32Array(e.n*2);for(let n=0;n<e.n;n++)i[n*2]=t[n*r]*this.dpr,i[n*2+1]=(r>1?t[n*r+1]:t[n*r])*this.dpr;e.radiusBuf=this._upload(i)}t.stroke&&t.stroke.mode===`direct_rgba`&&(e.strokeBuf=this._upload(this._columnView(n,this.spec.columns[t.stroke.buf])))}_buildScatterMark(e,t,n){this._buildXY(e,t,n),e.colorMode=0,e.color=y(this.root,t.color&&t.color.color,[.3,.47,.66,1]),t.color&&t.color.mode===`continuous`?(e.colorMode=1,e._cpu.color=this._columnView(n,this.spec.columns[t.color.buf]),e.cBuf=this._upload(e._cpu.color),e.lut=this._lut(t.color.colormap)):t.color&&t.color.mode===`categorical`?(e.colorMode=2,e._cpu.color=this._columnView(n,this.spec.columns[t.color.buf]),e.cBuf=this._upload(e._cpu.color),e.lut=this._paletteLut(t.color.palette)):t.color&&t.color.mode===`direct_rgba`&&(e.colorMode=3,e._cpu.rgba=this._columnView(n,this.spec.columns[t.color.buf]),e.rgbaBuf=this._upload(e._cpu.rgba)),e.sizeMode=0,e.size=t.size&&t.size.size||4,e.sizeRange=[2,18],t.size&&t.size.mode===`continuous`&&(e.sizeMode=1,e._cpu.size=this._columnView(n,this.spec.columns[t.size.buf]),e.sBuf=this._upload(e._cpu.size),e.sizeRange=t.size.range_px),this._buildInstanceStyleChannels(e,t,n,`stroke_width`),this._pointMarkStyle(e,t)}_pointMarkStyle(e,t){let n=t.style||{};e.symbol={circle:0,square:1,diamond:2,triangle:3,cross:4,hexagon:5,pentagon:6,star:7,triangle_down:8,triangle_left:9,triangle_right:10,x:11,point:12,pixel:13,thin_diamond:14,plus_line:15,x_line:16}[n.symbol]||0,e.pointStrokeWidth=Number(n.stroke_width)||0,e.pointStrokeFace=!n.stroke&&(!t.stroke||t.stroke.mode===`match_fill`),e.pointStroke=n.stroke?y(this.root,n.stroke,[e.color[0],e.color[1],e.color[2],1]):null}_sampleTraceSpec(e,t){return{id:e.id,kind:`scatter`,name:e.name,style:t.style||e.style||{},tier:`sampled`,x:t.x&&t.x.col,y:t.y&&t.y.col,x_axis:e.x_axis,y_axis:e.y_axis,color:t.color,size:t.size,stroke:t.stroke,channels:t.channels}}_buildDensitySample(e,t,n){if(!t||!t.x||!t.y||t.x.col===void 0||t.y.col===void 0)return null;let r=this._sampleTraceSpec(e,t),i={trace:r,tier:`sampled`,xAxis:typeof e.x_axis==`string`?e.x_axis:`x`,yAxis:typeof e.y_axis==`string`?e.y_axis:`y`};return this._buildScatterMark(i,r,n),i.win={x0:t.x_range[0],x1:t.x_range[1],y0:t.y_range[0],y1:t.y_range[1]},i.sample={n:t.n,visible:t.visible},i}_destroyDensitySample(e){let t=e&&e.sampleOverlay;if(!(!t||!this.gl)){for(let e of[t.xBuf,t.yBuf,t.cBuf,t.rgbaBuf,t.sBuf,t.styleBuf,t.strokeBuf,t.selBuf,t.dBuf])e&&this.gl.deleteBuffer(e);e.sampleOverlay=null}}_applyDensitySample(e,t,n){if(this._destroyDensitySample(e),!t||!t.x||!t.y||t.x.buf===void 0||t.y.buf===void 0){this._refreshReductionBadges();return}let r=this.gl,i={id:e.trace.id,kind:`scatter`,name:e.trace.name,style:t.style||e.trace.style||{},tier:`sampled`,x_axis:e.trace.x_axis,y_axis:e.trace.y_axis,color:t.color,size:t.size,stroke:t.stroke,channels:t.channels},a={trace:i,tier:`sampled`,xAxis:e.xAxis,yAxis:e.yAxis,xBuf:r.createBuffer(),yBuf:r.createBuffer(),xMeta:{offset:t.x.offset,scale:t.x.scale},yMeta:{offset:t.y.offset,scale:t.y.scale},n:Math.min(t.x.len,t.y.len),win:{x0:t.x_range[0],x1:t.x_range[1],y0:t.y_range[0],y1:t.y_range[1]},sample:{n:t.n,visible:t.visible},selActive:!1,colorMode:0,color:y(this.root,t.color&&t.color.color,[.3,.47,.66,1]),sizeMode:0,size:t.size&&t.size.size||4,sizeRange:[2,18]};if(r.bindBuffer(r.ARRAY_BUFFER,a.xBuf),r.bufferData(r.ARRAY_BUFFER,this._asF32(n[t.x.buf]),r.STATIC_DRAW),r.bindBuffer(r.ARRAY_BUFFER,a.yBuf),r.bufferData(r.ARRAY_BUFFER,this._asF32(n[t.y.buf]),r.STATIC_DRAW),t.color&&t.color.buf!==void 0){a.colorMode=t.color.mode===`continuous`?1:t.color.mode===`categorical`?2:3;let e=t.color.dtype===`u8`?this._asU8(n[t.color.buf]):this._asF32(n[t.color.buf]),i=a.colorMode===3?`rgbaBuf`:`cBuf`;a[i]=r.createBuffer(),a[i]._fcType=e instanceof Uint8Array?r.UNSIGNED_BYTE:r.FLOAT,r.bindBuffer(r.ARRAY_BUFFER,a[i]),r.bufferData(r.ARRAY_BUFFER,e,r.STATIC_DRAW),a.colorMode!==3&&(a.lut=t.color.mode===`continuous`?this._lut(t.color.colormap):this._paletteLut(t.color.palette))}t.size&&t.size.mode===`continuous`&&(a.sizeMode=1,a.sBuf=r.createBuffer(),r.bindBuffer(r.ARRAY_BUFFER,a.sBuf),r.bufferData(r.ARRAY_BUFFER,this._asF32(n[t.size.buf]),r.STATIC_DRAW),a.sizeRange=t.size.range_px);let o=e=>t.channels&&t.channels[e],s=Number(i.style&&i.style.artist_alpha);if(o(`opacity`)||o(`artist_alpha`)||o(`stroke_width`)||o(`symbol`)||Number.isFinite(s)){let e=new Float32Array(a.n*4);for(let t=0;t<a.n;t++)e[t*4]=1,e[t*4+1]=Number.isFinite(s)?s:-1,e[t*4+2]=-1,e[t*4+3]=-1;let t=(t,r,i=1)=>{let s=o(t);if(!s)return;let c=s.dtype===`u8`?this._asU8(n[s.buf]):this._asF32(n[s.buf]),l=s.components||1;for(let t=0;t<a.n;t++)e[t*4+r]=c[t*l]*i};t(`opacity`,0),t(`artist_alpha`,1),t(`stroke_width`,2,this.dpr),t(`symbol`,3),a.styleBuf=this._upload(e)}t.stroke&&t.stroke.mode===`direct_rgba`&&(a.strokeBuf=this._upload(this._asU8(n[t.stroke.buf]))),this._pointMarkStyle(a,i),e.sampleOverlay=a,this._refreshReductionBadges()}_drawDensitySample(e,t,n,r,i,a=1){let o=e&&e.sampleOverlay;!o||!o.n||!this._viewOverlaps(o.win)||this._drawPoints(o,this._map(o.xMeta,t,n,o.xAxis),this._map(o.yMeta,r,i,o.yAxis),a)}_resolveMarkFill(e,t){let n=e&&e.fill;if(!n||!Array.isArray(n.stops)||n.stops.length<2)return null;let r=n.space===`plot`?2:1,i={down:0,up:1,left:2,right:3}[n.dir]??0,a=Math.min(n.stops.length,8),o=new Float32Array(8),s=new Float32Array(32);for(let e=0;e<a;e++){let r=n.stops[e]||[];o[e]=Math.min(Math.max(Number(r[0])||0,0),1);let i=String(r[1]||``).trim(),a=i.toLowerCase()===`currentcolor`?t:y(this.root,i,t);s[e*4]=a[0]*a[3],s[e*4+1]=a[1]*a[3],s[e*4+2]=a[2]*a[3],s[e*4+3]=a[3]}return{mode:r,dir:i,count:a,pos:o,colors:s}}_setGradientUniforms(e,t){let n=this.gl,r=t=>F(n,e,t);if(!t){n.uniform1i(r(`u_gradMode`),0);return}n.uniform1i(r(`u_gradMode`),t.mode),n.uniform1i(r(`u_gradDir`),t.dir),n.uniform1i(r(`u_gradCount`),t.count),n.uniform1fv(r(`u_gradPos`),t.pos),n.uniform4fv(r(`u_gradColor`),t.colors)}_fillOpacity(e,t=1){return Number(e.opacity??t)*Number(e.fill_opacity??1)}_strokeOpacity(e,t=1){return Number(e.opacity??t)*Number(e.stroke_opacity??1)}_setRectStyleUniforms(e,t){let n=this.gl,r=t=>F(n,e,t);n.uniform2f(r(`u_res`),this.canvas.width,this.canvas.height);let i=t.cornerRadius||[0,0];n.uniform2f(r(`u_radius`),i[0]*this.dpr,i[1]*this.dpr),n.uniform1f(r(`u_strokeWidth`),(t.strokeWidth||0)*this.dpr);let a=t.strokeColor||[0,0,0,0];n.uniform4f(r(`u_stroke`),a[0],a[1],a[2],a[3]),n.uniform1i(r(`u_strokeMode`),+!!t.strokeBuf),n.uniform1f(r(`u_strokeOpacity`),this._strokeOpacity(t.trace.style||{})),this._setGradientUniforms(e,t.grad)}_rectMarkStyleGpu(e,t){let n=t.style||{},r=n.corner_radius;e.cornerRadius=Array.isArray(r)?[Number(r[0])||0,Number(r[1])||0]:[Number(r)||0,Number(r)||0],e.strokeWidth=Number(n.stroke_width)||0;let i=[e.color[0],e.color[1],e.color[2],1];e.strokeColor=n.stroke?y(this.root,n.stroke,i):i,e.grad=this._resolveMarkFill(n,e.color)}_smoothArrays(e,t,n,r,i){return!e.style||e.style.curve!==`smooth`?null:je(t,n,r||null,i,32768)}_stepArrays(e,t,n,r){let i=e.style&&e.style.step;if(!i||r<2)return null;let a=i===`mid`?3:2,o=1+(r-1)*a,s=new Float32Array(o),c=new Float32Array(o);s[0]=t[0],c[0]=n[0];let l=1;for(let e=1;e<r;e++)if(i===`pre`)s[l]=t[e-1],c[l]=n[e],l++,s[l]=t[e],c[l]=n[e],l++;else if(i===`mid`){let r=(t[e-1]+t[e])*.5;s[l]=r,c[l]=n[e-1],l++,s[l]=r,c[l]=n[e],l++,s[l]=t[e],c[l]=n[e],l++}else s[l]=t[e],c[l]=n[e-1],l++,s[l]=t[e],c[l]=n[e],l++;return{x:s,y:c,n:o}}_buildLineMark(e,t,n){let r=this._columnView(n,this.spec.columns[t.x]),i=this._columnView(n,this.spec.columns[t.y]);e.xMeta={...this.spec.columns[t.x]},e.yMeta={...this.spec.columns[t.y]},e.n=Math.min(r.length,i.length),e._cpu={x:r,y:i,xMeta:e.xMeta,yMeta:e.yMeta};let a=this._smoothArrays(t,r,i,null,e.n)||{x:r,y:i,n:e.n},o=this._stepArrays(t,a.x,a.y,a.n),s=o?o.x:a.x,c=o?o.y:a.y;e.xBuf=this._upload(s),e.yBuf=this._upload(c),e.n=o?o.n:a.n,e._dashX=s,e._dashY=c,e.color=y(this.root,t.style&&t.style.color,[.3,.47,.66,1])}_buildSegmentMark(e,t,n){let r=this._columnView(n,this.spec.columns[t.x0]),i=this._columnView(n,this.spec.columns[t.x1]),a=this._columnView(n,this.spec.columns[t.y0]),o=this._columnView(n,this.spec.columns[t.y1]);e.x0Meta={...this.spec.columns[t.x0]},e.x1Meta={...this.spec.columns[t.x1]},e.y0Meta={...this.spec.columns[t.y0]},e.y1Meta={...this.spec.columns[t.y1]},e.n=Math.min(r.length,i.length,a.length,o.length),e.x0Buf=this._upload(r),e.x1Buf=this._upload(i),e.y0Buf=this._upload(a),e.y1Buf=this._upload(o),e._segmentCpu={x0:r,x1:i,y0:a,y1:o},e.color=y(this.root,t.style&&t.style.color,[.3,.47,.66,1]),e.colorMode=0,t.color&&t.color.mode===`continuous`?(e.colorMode=1,e.cBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf])),e.lut=this._lut(t.color.colormap)):t.color&&t.color.mode===`categorical`?(e.colorMode=2,e.cBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf])),e.lut=this._paletteLut(t.color.palette)):t.color&&t.color.mode===`direct_rgba`&&(e.colorMode=3,e.rgbaBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf]))),this._buildInstanceStyleChannels(e,t,n,`width`),e._cpu={x:r,y:o,xMeta:e.x0Meta,yMeta:e.y1Meta}}_buildMeshMark(e,t,n){for(let r of[`x0`,`x1`,`x2`,`y0`,`y1`,`y2`]){let i=this._columnView(n,this.spec.columns[t[r]]);e[r+`Meta`]={...this.spec.columns[t[r]]},e[r+`Buf`]=this._upload(i),e.n=e.n===void 0?i.length:Math.min(e.n,i.length)}e.color=y(this.root,t.color&&t.color.color,[.3,.47,.66,1]),e.colorMode=0,t.color&&t.color.mode===`continuous`?(e.colorMode=1,e.cBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf])),e.lut=this._lut(t.color.colormap)):t.color&&t.color.mode===`categorical`?(e.colorMode=2,e.cBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf])),e.lut=this._paletteLut(t.color.palette)):t.color&&t.color.mode===`direct_rgba`&&(e.colorMode=3,e.rgbaBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf]))),this._buildInstanceStyleChannels(e,t,n,`stroke_width`);let r=t.style||{};e.meshStrokeWidth=Number(r.stroke_width)||0,e.meshStroke=y(this.root,r.stroke||`transparent`,[0,0,0,0])}_buildHexbinMark(e,t,n){let r=this._columnView(n,this.spec.columns[t.x]),i=this._columnView(n,this.spec.columns[t.y]),a={...this.spec.columns[t.x]},o={...this.spec.columns[t.y]},s=Math.min(r.length,i.length),c=t.style||{},l=(Number(c.hex_dx)||0)*(a.scale||1),u=(Number(c.hex_dy)||0)*(o.scale||1),d=[0,l/2,l/2,0,-l/2,-l/2,0],f=[-u/3,-u/6,u/6,u/3,u/6,-u/6,-u/3],p={};for(let e of[`x0`,`x1`,`x2`,`y0`,`y1`,`y2`])p[e]=new Float32Array(s*6);for(let e=0;e<s;e++){let t=r[e],n=i[e];for(let r=0;r<6;r++){let i=e*6+r;p.x0[i]=t,p.y0[i]=n,p.x1[i]=t+d[r],p.y1[i]=n+f[r],p.x2[i]=t+d[r+1],p.y2[i]=n+f[r+1]}}for(let t of[`x0`,`x1`,`x2`])e[t+`Meta`]={...a},e[t+`Buf`]=this._upload(p[t]);for(let t of[`y0`,`y1`,`y2`])e[t+`Meta`]={...o},e[t+`Buf`]=this._upload(p[t]);if(e.n=s*6,e.color=y(this.root,t.color&&t.color.color,[.3,.47,.66,1]),e.colorMode=0,t.color&&(t.color.mode===`continuous`||t.color.mode===`categorical`)){e.colorMode=t.color.mode===`continuous`?1:2;let r=this._columnView(n,this.spec.columns[t.color.buf]),i=new Float32Array(s*6);for(let e=0;e<s;e++)i.fill(r[e],e*6,e*6+6);e.cBuf=this._upload(i),e.lut=t.color.mode===`continuous`?this._lut(t.color.colormap):this._paletteLut(t.color.palette)}e.meshStrokeWidth=Number(c.stroke_width)||0,e.meshStroke=y(this.root,c.stroke||`transparent`,[0,0,0,0])}_buildAreaMark(e,t,n){let r=this._columnView(n,this.spec.columns[t.x]),i=this._columnView(n,this.spec.columns[t.y]),a=this._columnView(n,this.spec.columns[t.base]);e.xMeta={...this.spec.columns[t.x]},e.yMeta={...this.spec.columns[t.y]},e.baseMeta={...this.spec.columns[t.base]},e.n=Math.min(r.length,i.length,a.length),e._cpu={x:r,y:i,base:a,xMeta:e.xMeta,yMeta:e.yMeta};let o=this._smoothArrays(t,r,i,a,e.n);e.xBuf=this._upload(o?o.x:r),e.yBuf=this._upload(o?o.y:i),e.baseBuf=this._upload(o?o.extra:a),o&&(e.n=o.n),e._dashX=o?o.x:r,e._dashY=o?o.y:i,e.color=y(this.root,t.style&&t.style.color,[.3,.47,.66,1]),e.lineColor=y(this.root,t.style&&(t.style.line_color||t.style.color),e.color),e.grad=this._resolveMarkFill(t.style,e.color)}_buildRectMark(e,t,n){let r=this._columnView(n,this.spec.columns[t.x0]),i=this._columnView(n,this.spec.columns[t.x1]),a=this._columnView(n,this.spec.columns[t.y0]),o=this._columnView(n,this.spec.columns[t.y1]);e.x0Meta={...this.spec.columns[t.x0]},e.x1Meta={...this.spec.columns[t.x1]},e.y0Meta={...this.spec.columns[t.y0]},e.y1Meta={...this.spec.columns[t.y1]},e.n=Math.min(r.length,i.length,a.length,o.length),e._cpuRect={x0:r,x1:i,y0:a,y1:o,x0Meta:e.x0Meta,x1Meta:e.x1Meta,y0Meta:e.y0Meta,y1Meta:e.y1Meta},e.x0Buf=this._upload(r),e.x1Buf=this._upload(i),e.y0Buf=this._upload(a),e.y1Buf=this._upload(o),e.color=y(this.root,t.style&&t.style.color,[.3,.47,.66,1]),e.colorMode=0,t.color&&t.color.mode===`continuous`?(e.colorMode=1,e.cBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf])),e.lut=this._lut(t.color.colormap)):t.color&&t.color.mode===`categorical`?(e.colorMode=2,e.cBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf])),e.lut=this._paletteLut(t.color.palette)):t.color&&t.color.mode===`direct_rgba`&&(e.colorMode=3,e.rgbaBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf]))),this._buildInstanceStyleChannels(e,t,n,`stroke_width`),this._rectMarkStyleGpu(e,t)}_buildBarMark(e,t,n){let r=t.bar;if(!r)return this._buildRectMark(e,t,n);let i=this._columnView(n,this.spec.columns[r.pos]),a=this._columnView(n,this.spec.columns[r.value1]);if(e.posMeta={...this.spec.columns[r.pos]},e.value1Meta={...this.spec.columns[r.value1]},e.n=Math.min(i.length,a.length),e.posBuf=this._upload(i),e.value1Buf=this._upload(a),e.orientation=+(r.orientation===`horizontal`),e.value0Const=r.value0_const??0,e.value0Mode=r.value0===void 0?0:1,e.width=r.width,e.value0Mode===1){let t=this._columnView(n,this.spec.columns[r.value0]);e.value0Meta={...this.spec.columns[r.value0]},e.n=Math.min(e.n,t.length),e._cpuValue0=t,e.value0Buf=this._upload(t)}e._cpuBar={pos:i,value1:a,value0:e._cpuValue0||null,posMeta:e.posMeta,value1Meta:e.value1Meta,value0Meta:e.value0Meta||null,value0Const:e.value0Const,width:e.width},e._cpu=e.orientation===1?{x:a,y:i,xMeta:e.value1Meta,yMeta:e.posMeta,value0:e._cpuValue0}:{x:i,y:a,xMeta:e.posMeta,yMeta:e.value1Meta,value0:e._cpuValue0},e.color=y(this.root,t.style&&t.style.color,[.3,.47,.66,1]),e.colorMode=0,t.color&&t.color.mode===`continuous`?(e.colorMode=1,e.cBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf])),e.lut=this._lut(t.color.colormap)):t.color&&t.color.mode===`categorical`?(e.colorMode=2,e.cBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf])),e.lut=this._paletteLut(t.color.palette)):t.color&&t.color.mode===`direct_rgba`&&(e.colorMode=3,e.rgbaBuf=this._upload(this._columnView(n,this.spec.columns[t.color.buf]))),this._buildInstanceStyleChannels(e,t,n,`stroke_width`),this._rectMarkStyleGpu(e,t)}_buildHeatmapMark(e,t,n){let r=t.heatmap,i=Array.isArray(r.rgba_bufs),a=i?r.rgba_bufs.map(e=>this._columnView(n,this.spec.columns[e])):this._columnView(n,this.spec.columns[r.buf]);e.heatmap={w:r.w,h:r.h,xRange:r.x_range,yRange:r.y_range,colormap:r.colormap,truecolor:i,tex:i?this._uploadRgbaGrid(a,r.w,r.h):this._uploadHeatmapGrid(a,r.w,r.h),lut:i?null:this._lut(r.colormap)},i||(e._cpuHeatmap={grid:a})}_uploadRgbaGrid(e,t,n){let r=this.gl,i=r.createTexture(),a=new Uint8Array(t*n*4);for(let r=0;r<t*n;r++)for(let t=0;t<4;t++)a[r*4+t]=Math.round(255*Math.max(0,Math.min(1,e[t][r])));return r.bindTexture(r.TEXTURE_2D,i),r.texImage2D(r.TEXTURE_2D,0,r.RGBA,t,n,0,r.RGBA,r.UNSIGNED_BYTE,a),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_MIN_FILTER,r.NEAREST),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_MAG_FILTER,r.NEAREST),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_S,r.CLAMP_TO_EDGE),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_T,r.CLAMP_TO_EDGE),i}_uploadGrid(e,t,n,r){let i=this.gl,a=i.createTexture();return R(i,a,e,t,n,r),a}_uploadHeatmapGrid(e,t,n){let r=this.gl,i=r.createTexture(),a=new Uint8Array(e.length);for(let t=0;t<e.length;t++){let n=e[t];Number.isFinite(n)&&(a[t]=Math.max(1,Math.min(255,Math.round(1+254*Math.max(0,Math.min(1,n))))))}r.bindTexture(r.TEXTURE_2D,i);let o=r.getParameter(r.UNPACK_ALIGNMENT);return r.pixelStorei(r.UNPACK_ALIGNMENT,1),r.texImage2D(r.TEXTURE_2D,0,r.R8,t,n,0,r.RED,r.UNSIGNED_BYTE,a),r.pixelStorei(r.UNPACK_ALIGNMENT,o),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_MIN_FILTER,r.NEAREST),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_MAG_FILTER,r.NEAREST),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_S,r.CLAMP_TO_EDGE),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_T,r.CLAMP_TO_EDGE),i}_columnView(e,t){let n=Array.isArray(e);if(n!==Number.isInteger(t.buf))throw Error(n?`xy: transport delivered a buffer list but the spec column has no wire-buffer index`:`xy: spec column carries a wire-buffer index but the transport delivered one blob`);let r=o(n?e[t.buf]:e,`chart payload`),i=Number(t.byte_offset),a=Number(t.len);if(!Number.isSafeInteger(i)||i<0||!Number.isSafeInteger(a)||a<0)throw RangeError(`column offset/length must be non-negative safe integers`);let s=t.dtype===`u8`?1:4,c=r.byteOffset+i;if(i+a*s>r.byteLength)throw RangeError(`column extends past chart payload`);if(c%s!==0)throw RangeError(`column is misaligned`);return t.dtype===`u8`?new Uint8Array(r.buffer,c,a):t.dtype===`u32`?new Uint32Array(r.buffer,c,a):new Float32Array(r.buffer,c,a)}_upload(e){let t=this.gl,n=t.createBuffer();return n._fcId=++this._bufSeq,n._fcType=e instanceof Uint8Array?t.UNSIGNED_BYTE:t.FLOAT,t.bindBuffer(t.ARRAY_BUFFER,n),t.bufferData(t.ARRAY_BUFFER,e,t.STATIC_DRAW),n}_bindVao(e,t,n,r){let i=this.gl;e._vaos||=new Map;let a=n.join(`|`),o=e._vaos.get(t);if(!o||o.sig!==a){o&&i.deleteVertexArray(o.vao);let n=i.createVertexArray();i.bindVertexArray(n),r(),o={vao:n,sig:a},e._vaos.set(t,o)}else i.bindVertexArray(o.vao)}_deleteVaos(e){if(!e||!e._vaos)return;let t=this.gl;if(t)for(let{vao:n}of e._vaos.values())t.deleteVertexArray(n);e._vaos=null}_vaoAttr(e,t,n,r,i=1,a=!1){let o=this.gl;o.bindBuffer(o.ARRAY_BUFFER,t),o.enableVertexAttribArray(e),o.vertexAttribPointer(e,i,t._fcType||o.FLOAT,a,0,n),o.vertexAttribDivisor(e,r)}_initPickTarget(){let e=this.gl;this.pickTex=e.createTexture(),this._allocPickTex(),this.pickFbo=e.createFramebuffer(),e.bindFramebuffer(e.FRAMEBUFFER,this.pickFbo),e.framebufferTexture2D(e.FRAMEBUFFER,e.COLOR_ATTACHMENT0,e.TEXTURE_2D,this.pickTex,0),e.bindFramebuffer(e.FRAMEBUFFER,null),this._pickDirty=!0}_allocPickTex(){let e=this.gl;e.bindTexture(e.TEXTURE_2D,this.pickTex),e.texImage2D(e.TEXTURE_2D,0,e.RGBA8,this.canvas.width,this.canvas.height,0,e.RGBA,e.UNSIGNED_BYTE,null),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MIN_FILTER,e.NEAREST),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MAG_FILTER,e.NEAREST),this._pickW=this.canvas.width,this._pickH=this.canvas.height}_map(e,t,n,r=null){if(!r)return[2/((n-t)*e.scale),(e.offset-t)/(n-t)*2-1];let i=this._axis(r),a=this._axisCoord(i,t),o=this._axisCoord(i,n);if(![a,o].every(Number.isFinite)||o===a)return[0,-2];let s=2/(o-a);return[s,-1-a*s]}_mapConst(e,t,n,r=null){if(!r)return(e-t)/(n-t)*2-1;let i=this._axis(r),a=this._axisCoord(i,e),o=this._axisCoord(i,t),s=this._axisCoord(i,n);return![a,o,s].every(Number.isFinite)||s===o?-2:(a-o)/(s-o)*2-1}_edgePadForValue(e,t,n,r){if(!Number.isFinite(e)||!Number.isFinite(t)||!Number.isFinite(n)||n===t)return 0;let i=Math.abs(n-t)*1e-10+1e-12,a=Math.max(1,r||1),o=Math.max(2,Math.ceil(this.dpr||1));return Math.abs(e-t)<=i?-(2*o)/a:Math.abs(e-n)<=i?2*o/a:0}_setAxisUniforms(e,t,n,r){let i=this.gl,a=t=>F(i,e,t);i.uniform2f(a(`${t}meta`),n&&Number.isFinite(n.offset)?n.offset:0,n&&n.scale?n.scale:1),i.uniform1i(a(`${t}mode`),this._axisMode(r))}draw(e=!1){if(!(this._destroyed||this._glLost||!this.gl)){if(this._updateZoomMenuLabel?.(),this._raf){this._rafKeepPick=this._rafKeepPick&&e;return}this._rafKeepPick=e,this._raf=requestAnimationFrame(()=>{this._raf=null,!this._destroyed&&this._drawNow()})}}_drawNow(){if(this._destroyed||!this.gl||this._glLost)return;this._healStaleTheme();let e=this.gl,{x0:t,x1:n,y0:r,y1:i}=this.view;e.bindFramebuffer(e.FRAMEBUFFER,null),e.viewport(0,0,this.canvas.width,this.canvas.height),e.clearColor(0,0,0,0),e.clear(e.COLOR_BUFFER_BIT);let a=e=>{if(e.tier===`density`){let[t,n]=this._axisRange(e.xAxis),[r,i]=this._axisRange(e.yAxis);et(this,e,t,n,r,i);return}q(e.trace.kind).draw(this,e,t,n,r,i)};for(let e of this._transitionOldTraces||[])a(e);for(let e of this.gpuTraces)a(e);this._drawHoverState(),this._repositionTooltip(),this._rafKeepPick||(this._pickDirty=!0),this._rafKeepPick=!1,this._drawChrome(),this._renderLassoSelection?.()}_now(){return performance.now()}_canDrawSimplePoints(e){return e.colorMode===0&&e.sizeMode===0&&!e.selActive&&!e.rgbaBuf&&!e.styleBuf&&!e.strokeBuf&&(e.symbol||0)===0&&(e.pointStrokeWidth||0)<=0&&Math.max(e.lodBlendShown??0,e.lodBlend??0)<=.001}_drawPoints(e,t,n,r=1){r*=e._transitionOpacity??1;let i=e._transitionScale??1;if(this._canDrawSimplePoints(e)){this._drawSimplePoints(e,t,n,r);return}let a=this.gl,o=this.pointProg;a.useProgram(o);let s=e=>F(a,o,e);a.uniform2f(s(`u_xmap`),t[0],t[1]),a.uniform2f(s(`u_ymap`),n[0],n[1]),this._setAxisUniforms(o,`u_x`,e.xMeta,e.xAxis),this._setAxisUniforms(o,`u_y`,e.yMeta,e.yAxis),a.uniform1f(s(`u_dpr`),this.dpr);let c=!!(e._transitionPrevXBuf&&e._transitionPrevYBuf);a.uniform1i(s(`u_transitionActive`),+!!c),a.uniform1f(s(`u_transitionProgress`),e._transitionPositionProgress??1),a.uniform1f(s(`u_size`),e.size*i),a.uniform1i(s(`u_sizeMode`),e.sizeMode),a.uniform2f(s(`u_sizeRange`),e.sizeRange[0]*i,e.sizeRange[1]*i),a.uniform1i(s(`u_colorMode`),e.colorMode);let l=this._fillOpacity(e.trace.style,.8)*r;a.uniform1f(s(`u_opacity`),l),a.uniform1f(s(`u_selectedOpacity`),this._markStateNumber(`selected`,`opacity`,1)),a.uniform1f(s(`u_unselectedOpacity`),this._markStateNumber(`unselected`,`opacity`,.12));let u=(e,t)=>{let n=t?y(this.root,t,[0,0,0,1]):null;a.uniform4f(e,n?n[0]:0,n?n[1]:0,n?n[2]:0,+!!n)};u(s(`u_selColor`),this._markStateValue(`selected`,`color`)),u(s(`u_unselColor`),this._markStateValue(`unselected`,`color`));let[d,f,p,m]=e.color;a.uniform4f(s(`u_color`),d,f,p,m),a.uniform1i(s(`u_symbol`),e.symbol||0);let h=e.pointStroke;a.uniform1f(s(`u_ptStrokeWidth`),(e.pointStrokeWidth||0)*this.dpr),a.uniform1i(s(`u_ptStrokeFace`),+!!e.pointStrokeFace),a.uniform1i(s(`u_strokeMode`),+!!e.strokeBuf),a.uniform1f(s(`u_strokeOpacity`),this._strokeOpacity(e.trace.style,.8)*r),a.uniform4f(s(`u_ptStroke`),h?h[0]:0,h?h[1]:0,h?h[2]:0,h?h[3]:0),a.uniform1i(s(`u_selActive`),+!!e.selActive);let g=e.colorMode!==0&&e.cBuf,_=e.sizeMode===1&&e.sBuf,v=e.selActive&&e.selBuf,b=e.colorMode===3&&e.rgbaBuf,x=!!e.styleBuf,S=!!e.strokeBuf;e.lut&&(a.activeTexture(a.TEXTURE0),a.bindTexture(a.TEXTURE_2D,e.lut),a.uniform1i(s(`u_lut`),0));let C=e.lodBlend??0,w=e.lodBlendShown??C;if(Math.abs(w-C)>.005&&!this._prefersReducedMotion()){let t=this._now(),n=e._blendTick?Math.min(100,t-e._blendTick):16;e._blendTick=t,w+=(C-w)*(1-Math.exp(-n/90)),e.lodBlendShown=w,this.draw()}else e.lodBlendShown=w=C,e._blendTick=0;a.uniform1f(s(`u_dblend`),w);let T=w>.001&&e.dBuf&&e.dlut;T&&(a.activeTexture(a.TEXTURE1),a.bindTexture(a.TEXTURE_2D,e.dlut)),a.uniform1i(s(`u_dlut`),1),this._bindVao(e,`points`,[e.xBuf._fcId,e.yBuf._fcId,g?e.cBuf._fcId:0,_?e.sBuf._fcId:0,v?e.selBuf._fcId:0,T?e.dBuf._fcId:0,c?e._transitionPrevXBuf._fcId:0,c?e._transitionPrevYBuf._fcId:0,b?e.rgbaBuf._fcId:0,x?e.styleBuf._fcId:0,S?e.strokeBuf._fcId:0],()=>{this._vaoAttr(P.ax,e.xBuf,0,0),this._vaoAttr(P.ay,e.yBuf,0,0),g&&this._vaoAttr(P.a_cval,e.cBuf,0,0),_&&this._vaoAttr(P.a_sval,e.sBuf,0,0),v&&this._vaoAttr(P.a_sel,e.selBuf,0,0),T&&this._vaoAttr(P.a_dval,e.dBuf,0,0),c&&(this._vaoAttr(P.a_prevx,e._transitionPrevXBuf,0,0),this._vaoAttr(P.a_prevy,e._transitionPrevYBuf,0,0)),b&&this._vaoAttr(P.a_rgba,e.rgbaBuf,0,0,4,!0),x&&this._vaoAttr(P.a_style,e.styleBuf,0,0,4),S&&this._vaoAttr(P.a_stroke,e.strokeBuf,0,0,4,!0)}),g||a.vertexAttrib1f(P.a_cval,0),_||a.vertexAttrib1f(P.a_sval,.5),v||a.vertexAttrib1f(P.a_sel,1),T||a.vertexAttrib1f(P.a_dval,0),b||a.vertexAttrib4f(P.a_rgba,d,f,p,m),x||a.vertexAttrib4f(P.a_style,1,-1,-1,-1),S||a.vertexAttrib4f(P.a_stroke,d,f,p,m),a.drawArrays(a.POINTS,0,e.n)}_drawSimplePoints(e,t,n,r=1){let i=this.gl,a=this.pointSimpleProg;i.useProgram(a);let o=e=>F(i,a,e);i.uniform2f(o(`u_xmap`),t[0],t[1]),i.uniform2f(o(`u_ymap`),n[0],n[1]),this._setAxisUniforms(a,`u_x`,e.xMeta,e.xAxis),this._setAxisUniforms(a,`u_y`,e.yMeta,e.yAxis),i.uniform1f(o(`u_dpr`),this.dpr);let s=!!(e._transitionPrevXBuf&&e._transitionPrevYBuf);i.uniform1i(o(`u_transitionActive`),+!!s),i.uniform1f(o(`u_transitionProgress`),e._transitionPositionProgress??1),i.uniform1f(o(`u_size`),e.size*(e._transitionScale??1));let[c,l,u,d]=e.color;i.uniform4f(o(`u_color`),c,l,u,d*this._fillOpacity(e.trace.style,.8)*r),this._bindVao(e,`points-simple`,[e.xBuf._fcId,e.yBuf._fcId,s?e._transitionPrevXBuf._fcId:0,s?e._transitionPrevYBuf._fcId:0],()=>{this._vaoAttr(P.ax,e.xBuf,0,0),this._vaoAttr(P.ay,e.yBuf,0,0),s&&(this._vaoAttr(P.a_prevx,e._transitionPrevXBuf,0,0),this._vaoAttr(P.a_prevy,e._transitionPrevYBuf,0,0))}),i.drawArrays(i.POINTS,0,e.n)}_drawHoverState(){let e=this._hoverTarget;if(!e||!e.g)return;let t=e.g;if(t.trace.kind!==`scatter`||t.tier===`density`||!Number.isInteger(e.index)||e.index<0||e.index>=t.n)return;let[n,r]=this._axisRange(t.xAxis),[i,a]=this._axisRange(t.yAxis);this._drawHoverPoint(t,e.index,this._map(t.xMeta,n,r,t.xAxis),this._map(t.yMeta,i,a,t.yAxis))}_drawHoverPoint(e,t,n,r){let i=this.gl,a=this.pointProg;i.useProgram(a);let o=e=>F(i,a,e);i.uniform2f(o(`u_xmap`),n[0],n[1]),i.uniform2f(o(`u_ymap`),r[0],r[1]),this._setAxisUniforms(a,`u_x`,e.xMeta,e.xAxis),this._setAxisUniforms(a,`u_y`,e.yMeta,e.yAxis);let s=Math.max((e.size||4)*1.75,(e.size||4)+5),c=Math.max(0,this._markStateNumber(`hover`,`size`,s)),l=Math.max(0,Math.min(1,this._markStateNumber(`hover`,`opacity`,.95))),u=y(this.root,this._markStatePaint(`hover`,`color`,`rgba(15,23,42,.92)`),[.06,.09,.16,.92]);i.uniform1f(o(`u_dpr`),this.dpr),i.uniform1f(o(`u_size`),c),i.uniform1i(o(`u_sizeMode`),0),i.uniform2f(o(`u_sizeRange`),c,c),i.uniform1i(o(`u_colorMode`),0),i.uniform1f(o(`u_opacity`),l),i.uniform1f(o(`u_selectedOpacity`),1),i.uniform1f(o(`u_unselectedOpacity`),1),i.uniform4f(o(`u_color`),u[0],u[1],u[2],1),i.uniform1i(o(`u_selActive`),0),i.uniform1f(o(`u_dblend`),0),this._bindVao(e,`hover`,[e.xBuf._fcId,e.yBuf._fcId],()=>{this._vaoAttr(P.ax,e.xBuf,0,0),this._vaoAttr(P.ay,e.yBuf,0,0)}),i.vertexAttrib1f(P.a_cval,0),i.vertexAttrib1f(P.a_sval,.5),i.vertexAttrib1f(P.a_sel,1),i.vertexAttrib1f(P.a_dval,0),i.drawArrays(i.POINTS,t,1)}_drawDensity(e,t,n=1){let r=this.gl,i=t||e.density;if(!i||!i.tex||!r.isTexture(i.tex))return;n*=e._transitionOpacity??1;let a=this.densityProg;r.useProgram(a);let o=e=>F(r,a,e),{x0:s,x1:c,y0:l,y1:u}=this.view,[d,f]=this._axisRange(e.xAxis),[p,m]=this._axisRange(e.yAxis);r.uniform4f(o(`u_view`),d??s,f??c,p??l,m??u),r.uniform1i(o(`u_xmode`),this._axisMode(e.xAxis)),r.uniform1i(o(`u_ymode`),this._axisMode(e.yAxis)),r.uniform4f(o(`u_gridRange`),i.xRange[0],i.xRange[1],i.yRange[0],i.yRange[1]),r.uniform1f(o(`u_opacity`),this._fillOpacity(e.trace.style)*n);let h=i.color;r.uniform1i(o(`u_constantColor`),+!!h),r.uniform4f(o(`u_color`),...h||[1,1,1,1]),r.activeTexture(r.TEXTURE0),r.bindTexture(r.TEXTURE_2D,i.tex),r.uniform1i(o(`u_grid`),0),r.activeTexture(r.TEXTURE1),r.bindTexture(r.TEXTURE_2D,i.lut),r.uniform1i(o(`u_lut`),1),r.bindVertexArray(this.quadVao),r.drawArrays(r.TRIANGLE_STRIP,0,4)}_drawHeatmap(e){let t=e.heatmap;if(!t)return;let n=this.gl,r=this.heatmapProg;n.useProgram(r);let i=e=>F(n,r,e),{x0:a,x1:o,y0:s,y1:c}=this.view,[l,u]=this._axisRange(e.xAxis),[d,f]=this._axisRange(e.yAxis);n.uniform4f(i(`u_view`),l??a,u??o,d??s,f??c),n.uniform1i(i(`u_xmode`),this._axisMode(e.xAxis)),n.uniform1i(i(`u_ymode`),this._axisMode(e.yAxis));let p=(l??a)>(u??o),m=(d??s)>(f??c);n.uniform4f(i(`u_gridRange`),t.xRange[+!!p],t.xRange[+!p],t.yRange[+!!m],t.yRange[+!m]),n.uniform1f(i(`u_opacity`),this._fillOpacity(e.trace.style)*(e._transitionOpacity??1)),n.uniform1i(i(`u_truecolor`),+!!t.truecolor),n.activeTexture(n.TEXTURE0),n.bindTexture(n.TEXTURE_2D,t.tex),n.uniform1i(i(`u_grid`),0),t.truecolor||(n.activeTexture(n.TEXTURE1),n.bindTexture(n.TEXTURE_2D,t.lut),n.uniform1i(i(`u_lut`),1)),n.bindVertexArray(this.quadVao),n.drawArrays(n.TRIANGLE_STRIP,0,4)}_drawLine(e,t,n,r=null,i=null,a=null){if(e.n<2)return;let o=this.gl;o.useProgram(this.lineProg);let s=e=>F(o,this.lineProg,e);o.uniform2f(s(`u_xmap`),t[0],t[1]),o.uniform2f(s(`u_ymap`),n[0],n[1]),this._setAxisUniforms(this.lineProg,`u_x`,e.xMeta,e.xAxis),this._setAxisUniforms(this.lineProg,`u_y`,e.yMeta,e.yAxis),o.uniform2f(s(`u_res`),this.canvas.width,this.canvas.height);let c=!!(e._transitionPrevXBuf&&e._transitionPrevYBuf);o.uniform1i(s(`u_transitionActive`),+!!c),o.uniform1f(s(`u_transitionProgress`),e._transitionPositionProgress??1);let l=Math.max(0,Math.min(1,e._transitionReveal??1));o.uniform1f(s(`u_revealProgress`),l),o.uniform1f(s(`u_revealSegments`),e.n-1),o.uniform1f(s(`u_width`),(i??e.trace.style.width??1.5)*this.dpr);let[u,d,f,p]=r||e.color,m=this._strokeOpacity(e.trace.style)*(a??1)*(e._transitionOpacity??1);o.uniform4f(s(`u_color`),u,d,f,p*m);let h=this._lineDash(e);this._bindVao(e,`line`,[e.xBuf._fcId,e.yBuf._fcId,h?e._lenBuf._fcId:0,c?e._transitionPrevXBuf._fcId:0,c?e._transitionPrevYBuf._fcId:0],()=>{this._vaoAttr(P.ax0,e.xBuf,0,1),this._vaoAttr(P.ax1,e.xBuf,4,1),this._vaoAttr(P.ay0,e.yBuf,0,1),this._vaoAttr(P.ay1,e.yBuf,4,1),h&&(this._vaoAttr(P.a_len0,e._lenBuf,0,1),this._vaoAttr(P.a_len1,e._lenBuf,4,1)),c&&(this._vaoAttr(P.a_prevx,e._transitionPrevXBuf,0,1),this._vaoAttr(P.a_prevy,e._transitionPrevYBuf,0,1),this._vaoAttr(P.a_prevx1,e._transitionPrevXBuf,4,1),this._vaoAttr(P.a_prevy1,e._transitionPrevYBuf,4,1))});let g=Math.max(0,Math.min(e.n-1,Math.ceil((e.n-1)*l)));o.drawArraysInstanced(o.TRIANGLE_STRIP,0,4,g)}_drawSegments(e,t,n){if(e.n<1)return;let r=this.gl,i=this.segmentProg;r.useProgram(i);let a=e=>F(r,i,e);r.uniform2f(a(`u_xmap`),t[0],t[1]),r.uniform2f(a(`u_ymap`),n[0],n[1]),this._setAxisUniforms(i,`u_x0`,e.x0Meta,e.xAxis),this._setAxisUniforms(i,`u_x1`,e.x1Meta,e.xAxis),this._setAxisUniforms(i,`u_y0`,e.y0Meta,e.yAxis),this._setAxisUniforms(i,`u_y1`,e.y1Meta,e.yAxis),r.uniform2f(a(`u_res`),this.canvas.width,this.canvas.height),r.uniform1f(a(`u_width`),(e.trace.style.width??1.5)*this.dpr),r.uniform1f(a(`u_animationProgress`),e._transitionScale??1);let[o,s,c,l]=e.color;r.uniform4f(a(`u_color`),o,s,c,l),r.uniform1f(a(`u_opacity`),this._strokeOpacity(e.trace.style)*(e._transitionOpacity??1)),r.uniform1i(a(`u_colorMode`),e.colorMode||0);let u=this._segmentDash(e,i);e.colorMode&&e.lut&&(r.activeTexture(r.TEXTURE0),r.bindTexture(r.TEXTURE_2D,e.lut),r.uniform1i(a(`u_lut`),0)),this._bindVao(e,`segment`,[e.x0Buf._fcId,e.x1Buf._fcId,e.y0Buf._fcId,e.y1Buf._fcId,e.colorMode&&e.cBuf?e.cBuf._fcId:0,e.rgbaBuf?e.rgbaBuf._fcId:0,e.styleBuf?e.styleBuf._fcId:0,u?e._segmentDashOffsetBuf._fcId:0,u?e._segmentDashDirBuf._fcId:0],()=>{this._vaoAttr(P.ax0,e.x0Buf,0,1),this._vaoAttr(P.ax1,e.x1Buf,0,1),this._vaoAttr(P.ay0,e.y0Buf,0,1),this._vaoAttr(P.ay1,e.y1Buf,0,1),e.colorMode&&e.cBuf&&this._vaoAttr(P.a_cval,e.cBuf,0,1),e.rgbaBuf&&this._vaoAttr(P.a_rgba,e.rgbaBuf,0,1,4,!0),e.styleBuf&&this._vaoAttr(P.a_style,e.styleBuf,0,1,4),u&&(this._vaoAttr(P.a_dash0,e._segmentDashOffsetBuf,0,1),this._vaoAttr(P.a_dashDir,e._segmentDashDirBuf,0,1))}),e.cBuf||r.vertexAttrib1f(P.a_cval,0),e.rgbaBuf||r.vertexAttrib4f(P.a_rgba,o,s,c,l),e.styleBuf||r.vertexAttrib4f(P.a_style,1,-1,-1,-1);let d=Math.max(0,Math.min(e.n,Math.ceil(e.n*(e._transitionReveal??1))));r.drawArraysInstanced(r.TRIANGLE_STRIP,0,4,d)}_segmentDash(e,t){let n=this.gl,r=e=>F(n,t,e),i=e.trace.style&&e.trace.style.dash,a=e._segmentCpu;if(!i||!i.length||!a)return n.uniform1i(r(`u_dashCount`),0),!1;let o=e.n,s=e._segmentDashOffsets?.length===o?e._segmentDashOffsets:e._segmentDashOffsets=new Float32Array(o),c=e._segmentDashDirections?.length===o?e._segmentDashDirections:e._segmentDashDirections=new Float32Array(o),l=Array(o),u=Array(o),d=new Float32Array(o),f=new Map,p=(e,t)=>{let n=f.get(e);n?n.push(t):f.set(e,[t])},m=(e,t)=>`${Math.round(e*1e3)},${Math.round(t*1e3)}`,h=this.dpr;for(let t=0;t<o;t++){let n=this._dataPx(e.xAxis,this._decodeValue(a.x0,e.x0Meta,t)),r=this._dataPx(e.xAxis,this._decodeValue(a.x1,e.x1Meta,t)),i=this._dataPx(e.yAxis,this._decodeValue(a.y0,e.y0Meta,t)),o=this._dataPx(e.yAxis,this._decodeValue(a.y1,e.y1Meta,t));l[t]=m(n,i),u[t]=m(r,o),d[t]=Math.hypot(r-n,o-i)*h,p(l[t],t),p(u[t],t)}let g=new Uint8Array(o),_=e=>{let t=e,n=0;for(;;){let e=(f.get(t)||[]).find(e=>!g[e]);if(e===void 0)break;g[e]=1,l[e]===t?(s[e]=n,c[e]=1,t=u[e]):(s[e]=n+d[e],c[e]=-1,t=l[e]),n+=d[e]}};for(let[e,t]of f)t.length===1&&_(e);for(let e=0;e<o;e++)g[e]||_(l[e]);let v=(e,t)=>e?(n.bindBuffer(n.ARRAY_BUFFER,e),n.bufferData(n.ARRAY_BUFFER,t,n.DYNAMIC_DRAW),e):this._upload(t);e._segmentDashOffsetBuf=v(e._segmentDashOffsetBuf,s),e._segmentDashDirBuf=v(e._segmentDashDirBuf,c);let y=new Float32Array(8),b=Math.min(i.length,8),x=0;for(let e=0;e<b;e++)y[e]=Number(i[e])*h,x+=y[e];return n.uniform1i(r(`u_dashCount`),b),n.uniform1fv(r(`u_dashArr`),y),n.uniform1f(r(`u_dashPeriod`),Math.max(x,.001)),!0}_drawMesh(e,t,n){if(e.n<1)return;let r=this.gl,i=this.meshProg;r.useProgram(i);let a=e=>F(r,i,e);r.uniform2f(a(`u_xmap`),t[0],t[1]),r.uniform2f(a(`u_ymap`),n[0],n[1]);for(let t of[`x0`,`x1`,`x2`])this._setAxisUniforms(i,`u_`+t,e[t+`Meta`],e.xAxis);for(let t of[`y0`,`y1`,`y2`])this._setAxisUniforms(i,`u_`+t,e[t+`Meta`],e.yAxis);r.uniform1i(a(`u_colorMode`),e.colorMode||0),r.uniform1f(a(`u_opacity`),this._fillOpacity(e.trace.style)),r.uniform4f(a(`u_color`),e.color[0],e.color[1],e.color[2],e.color[3]);let o=e.meshStroke||[0,0,0,0];r.uniform4f(a(`u_stroke`),o[0],o[1],o[2],o[3]),r.uniform1f(a(`u_strokeWidth`),e.meshStrokeWidth||0),r.uniform1i(a(`u_strokeMode`),+!!e.strokeBuf),r.uniform1f(a(`u_strokeOpacity`),this._strokeOpacity(e.trace.style)),e.colorMode&&e.lut&&(r.activeTexture(r.TEXTURE0),r.bindTexture(r.TEXTURE_2D,e.lut),r.uniform1i(a(`u_lut`),0));let s=[`x0`,`x1`,`x2`,`y0`,`y1`,`y2`].map(t=>e[t+`Buf`]._fcId);s.push(e.cBuf?e.cBuf._fcId:0,e.rgbaBuf?e.rgbaBuf._fcId:0,e.styleBuf?e.styleBuf._fcId:0,e.strokeBuf?e.strokeBuf._fcId:0),this._bindVao(e,`mesh`,s,()=>{for(let t of[`x0`,`x1`,`x2`,`y0`,`y1`,`y2`])this._vaoAttr(P[`a`+t],e[t+`Buf`],0,1);e.cBuf&&this._vaoAttr(P.a_cval,e.cBuf,0,1),e.rgbaBuf&&this._vaoAttr(P.a_rgba,e.rgbaBuf,0,1,4,!0),e.styleBuf&&this._vaoAttr(P.a_style,e.styleBuf,0,1,4),e.strokeBuf&&this._vaoAttr(P.a_stroke,e.strokeBuf,0,1,4,!0)}),e.cBuf||r.vertexAttrib1f(P.a_cval,0),e.rgbaBuf||r.vertexAttrib4f(P.a_rgba,...e.color),e.styleBuf||r.vertexAttrib4f(P.a_style,1,-1,-1,-1),e.strokeBuf||r.vertexAttrib4f(P.a_stroke,...o),r.drawArraysInstanced(r.TRIANGLES,0,3,e.n)}_lineDash(e){let t=this.gl,n=e=>F(t,this.lineProg,e),r=e.trace.style&&e.trace.style.dash;if(!r||!r.length||!e._dashX)return t.uniform1i(n(`u_dashCount`),0),!1;let i=e.n;(!e._lenArr||e._lenArr.length!==i)&&(e._lenArr=new Float32Array(i));let a=e._lenArr,o=this.dpr,s=this._dataPx(e.xAxis,this._decodeValue(e._dashX,e.xMeta,0)),c=this._dataPx(e.yAxis,this._decodeValue(e._dashY,e.yMeta,0)),l=0;a[0]=0;for(let t=1;t<i;t++){let n=this._dataPx(e.xAxis,this._decodeValue(e._dashX,e.xMeta,t)),r=this._dataPx(e.yAxis,this._decodeValue(e._dashY,e.yMeta,t));Number.isFinite(n)&&Number.isFinite(r)&&Number.isFinite(s)&&Number.isFinite(c)&&(l+=Math.hypot(n-s,r-c)*o),a[t]=l,s=n,c=r}e._lenBuf?(t.bindBuffer(t.ARRAY_BUFFER,e._lenBuf),t.bufferData(t.ARRAY_BUFFER,a,t.DYNAMIC_DRAW)):e._lenBuf=this._upload(a);let u=new Float32Array(8),d=0,f=Math.min(r.length,8);for(let e=0;e<f;e++)u[e]=r[e]*o,d+=u[e];return t.uniform1i(n(`u_dashCount`),f),t.uniform1fv(n(`u_dashArr`),u),t.uniform1f(n(`u_dashPeriod`),Math.max(d,.001)),!0}_drawArea(e,t,n,r){if(e.n<2)return;let i=this.gl,a=this.areaProg;i.useProgram(a);let o=e=>F(i,a,e);i.uniform2f(o(`u_xmap`),t[0],t[1]),i.uniform2f(o(`u_ymap`),n[0],n[1]),i.uniform2f(o(`u_bmap`),r[0],r[1]),this._setAxisUniforms(a,`u_x`,e.xMeta,e.xAxis),this._setAxisUniforms(a,`u_y`,e.yMeta,e.yAxis),this._setAxisUniforms(a,`u_b`,e.baseMeta,e.yAxis);let s=Math.max(0,Math.min(1,e._transitionReveal??1));i.uniform1f(o(`u_revealProgress`),s),i.uniform1f(o(`u_revealSegments`),e.n-1);let[c,l,u,d]=e.color;i.uniform4f(o(`u_color`),c,l,u,d*this._fillOpacity(e.trace.style,.35)*(e._transitionOpacity??1)),i.uniform2f(o(`u_res`),this.canvas.width,this.canvas.height),this._setGradientUniforms(a,e.grad),this._bindVao(e,`area`,[e.xBuf._fcId,e.yBuf._fcId,e.baseBuf._fcId],()=>{this._vaoAttr(P.ax0,e.xBuf,0,1),this._vaoAttr(P.ax1,e.xBuf,4,1),this._vaoAttr(P.ay0,e.yBuf,0,1),this._vaoAttr(P.ay1,e.yBuf,4,1),this._vaoAttr(P.ab0,e.baseBuf,0,1),this._vaoAttr(P.ab1,e.baseBuf,4,1)});let f=Math.max(0,Math.min(e.n-1,Math.ceil((e.n-1)*s)));i.drawArraysInstanced(i.TRIANGLE_STRIP,0,4,f)}_drawRects(e,t,n,r,i,a=[0,0,0,0]){if(!e.n)return;let o=this.gl,s=this.rectProg;o.useProgram(s);let c=e=>F(o,s,e);o.uniform2f(c(`u_x0map`),t[0],t[1]),o.uniform2f(c(`u_x1map`),n[0],n[1]),o.uniform2f(c(`u_y0map`),r[0],r[1]),o.uniform2f(c(`u_y1map`),i[0],i[1]),this._setAxisUniforms(s,`u_x0`,e.x0Meta,e.xAxis),this._setAxisUniforms(s,`u_x1`,e.x1Meta,e.xAxis),this._setAxisUniforms(s,`u_y0`,e.y0Meta,e.yAxis),this._setAxisUniforms(s,`u_y1`,e.y1Meta,e.yAxis),o.uniform1i(c(`u_xmode`),this._axisMode(e.xAxis)),o.uniform1i(c(`u_ymode`),this._axisMode(e.yAxis)),o.uniform4f(c(`u_edgePad`),a[0],a[1],a[2],a[3]);let[l,u,d,f]=e.color;o.uniform4f(c(`u_color`),l,u,d,f),o.uniform1f(c(`u_opacity`),this._fillOpacity(e.trace.style)*(e._transitionOpacity??1)),o.uniform1i(c(`u_colorMode`),e.colorMode||0),this._setRectStyleUniforms(s,e);let p=!!e.cBuf,m=!!e.rgbaBuf,h=!!e.styleBuf,g=!!e.strokeBuf,_=!!e.radiusBuf;p&&(o.activeTexture(o.TEXTURE0),o.bindTexture(o.TEXTURE_2D,e.lut),o.uniform1i(c(`u_lut`),0)),this._bindVao(e,`rects`,[e.x0Buf._fcId,e.x1Buf._fcId,e.y0Buf._fcId,e.y1Buf._fcId,p?e.cBuf._fcId:0,m?e.rgbaBuf._fcId:0,h?e.styleBuf._fcId:0,g?e.strokeBuf._fcId:0,_?e.radiusBuf._fcId:0],()=>{this._vaoAttr(P.ax0,e.x0Buf,0,1),this._vaoAttr(P.ax1,e.x1Buf,0,1),this._vaoAttr(P.ay0,e.y0Buf,0,1),this._vaoAttr(P.ay1,e.y1Buf,0,1),p&&this._vaoAttr(P.a_cval,e.cBuf,0,1),m&&this._vaoAttr(P.a_rgba,e.rgbaBuf,0,1,4,!0),h&&this._vaoAttr(P.a_style,e.styleBuf,0,1,4),g&&this._vaoAttr(P.a_stroke,e.strokeBuf,0,1,4,!0),_&&this._vaoAttr(P.a_radius,e.radiusBuf,0,1,2)}),p||o.vertexAttrib1f(P.a_cval,0),m||o.vertexAttrib4f(P.a_rgba,l,u,d,f),h||o.vertexAttrib4f(P.a_style,1,-1,-1,-1),g||o.vertexAttrib4f(P.a_stroke,...e.strokeColor||e.color),_||o.vertexAttrib2f(P.a_radius,-1,-1),o.drawArraysInstanced(o.TRIANGLE_STRIP,0,4,e.n)}_drawBars(e,t,n,r,i,a=0){if(!e.n)return;let o=this.gl,s=this.barProg;o.useProgram(s);let c=e=>F(o,s,e);o.uniform2f(c(`u_pmap`),t[0],t[1]),o.uniform2f(c(`u_v1map`),n[0],n[1]),o.uniform2f(c(`u_v0map`),r?r[0]:1,r?r[1]:0);let l=e.orientation===1?e.yAxis:e.xAxis,u=e.orientation===1?e.xAxis:e.yAxis;this._setAxisUniforms(s,`u_p`,e.posMeta,l),this._setAxisUniforms(s,`u_v1`,e.value1Meta,u),this._setAxisUniforms(s,`u_v0`,e.value0Meta,u),o.uniform1i(c(`u_pmode`),this._axisMode(l)),o.uniform1i(c(`u_vmode`),this._axisMode(u)),o.uniform1f(c(`u_width`),e.width),o.uniform1i(c(`u_orientation`),e.orientation),o.uniform1i(c(`u_v0Mode`),e.value0Mode),o.uniform1f(c(`u_v0Const`),i??0),o.uniform1f(c(`u_v0EdgePad`),a),o.uniform1f(c(`u_animationProgress`),e._transitionGrow??1);let d=!!(e._transitionPrevPosBuf&&e._transitionPrevValue1Buf&&e._transitionPrevValue0Buf);o.uniform1i(c(`u_transitionActive`),+!!d),o.uniform1f(c(`u_transitionProgress`),e._transitionPositionProgress??1),o.uniform1f(c(`u_prevWidth`),e._transitionPrevWidth??e.width);let[f,p,m,h]=e.color;o.uniform4f(c(`u_color`),f,p,m,h),o.uniform1f(c(`u_opacity`),this._fillOpacity(e.trace.style)*(e._transitionOpacity??1)),o.uniform1i(c(`u_colorMode`),e.colorMode||0),this._setRectStyleUniforms(s,e);let g=e.value0Mode===1&&e.value0Buf,_=!!e.cBuf,v=!!e.rgbaBuf,y=!!e.styleBuf,b=!!e.strokeBuf,x=!!e.radiusBuf;_&&(o.activeTexture(o.TEXTURE0),o.bindTexture(o.TEXTURE_2D,e.lut),o.uniform1i(c(`u_lut`),0)),this._bindVao(e,`bars`,[e.posBuf._fcId,e.value1Buf._fcId,g?e.value0Buf._fcId:0,_?e.cBuf._fcId:0,d?e._transitionPrevPosBuf._fcId:0,d?e._transitionPrevValue1Buf._fcId:0,d?e._transitionPrevValue0Buf._fcId:0,v?e.rgbaBuf._fcId:0,y?e.styleBuf._fcId:0,b?e.strokeBuf._fcId:0,x?e.radiusBuf._fcId:0],()=>{this._vaoAttr(P.a_pos,e.posBuf,0,1),this._vaoAttr(P.a_v1,e.value1Buf,0,1),g&&this._vaoAttr(P.a_v0,e.value0Buf,0,1),_&&this._vaoAttr(P.a_cval,e.cBuf,0,1),d&&(this._vaoAttr(P.a_prevx,e._transitionPrevPosBuf,0,1),this._vaoAttr(P.a_prevy,e._transitionPrevValue1Buf,0,1),this._vaoAttr(P.a_prevx1,e._transitionPrevValue0Buf,0,1)),v&&this._vaoAttr(P.a_rgba,e.rgbaBuf,0,1,4,!0),y&&this._vaoAttr(P.a_style,e.styleBuf,0,1,4),b&&this._vaoAttr(P.a_stroke,e.strokeBuf,0,1,4,!0),x&&this._vaoAttr(P.a_radius,e.radiusBuf,0,1,2)}),g||o.vertexAttrib1f(P.a_v0,0),_||o.vertexAttrib1f(P.a_cval,0),v||o.vertexAttrib4f(P.a_rgba,f,p,m,h),y||o.vertexAttrib4f(P.a_style,1,-1,-1,-1),b||o.vertexAttrib4f(P.a_stroke,...e.strokeColor||e.color),x||o.vertexAttrib2f(P.a_radius,-1,-1),o.drawArraysInstanced(o.TRIANGLE_STRIP,0,4,e.n)}_dataPxX(e){return this._dataPx(`x`,e)}_dataPxY(e){return this._dataPx(`y`,e)}_styleNumber(e,t,n){if(!e||typeof e!=`object`)return n;let r=Number(e[t]);return Number.isFinite(r)?r:n}_axisStyleNumber(e,t,n){return this._styleNumber(e&&e.style,t,n)}_axisStylePaint(e,t,n){let r=e&&typeof e.style==`object`?e.style:null;return w(this.root,r&&r[t],n)}_axisStyleValue(e,t){let n=e&&typeof e.style==`object`?e.style:null;return n&&Object.prototype.hasOwnProperty.call(n,t)?n[t]:void 0}_axisGridDash(e){let t=String(this._axisStyleValue(e,`grid_dash`)||`solid`);return t===`dashed`?[6,4]:t===`dotted`?[1,3]:t===`dashdot`?[6,3,1,3]:[]}_axisTickLabelStrategy(e){let t=String(e&&e.tick_label_strategy||`auto`).replace(/-/g,`_`);return[`auto`,`hide`,`rotate`,`stagger`,`none`,`off`].includes(t)?t:`auto`}_axisTickLabelAnchor(e){let t=e&&e.tick_label_anchor!==void 0?e.tick_label_anchor:this._axisStyleValue(e,`tick_label_anchor`);if(t==null)return null;let n=String(t).toLowerCase();return n===`start`||n===`left`?`start`:n===`end`||n===`right`?`end`:n===`center`||n===`middle`?`center`:null}_axisTickLabelAngle(e){let t=Number(e?e.tick_label_angle:void 0);return Number.isFinite(t)?t:null}_axisTickLabelMinGap(e,t){let n=Number(e?e.tick_label_min_gap:void 0);return Number.isFinite(n)&&n>=0?n:t===`x`?8:4}_estimateTickLabel(e,t){let n=String(e||``);return{w:Math.max(t*.7,n.length*t*.62),h:t*1.2}}_tickLabelExtent(e,t,n){let r=this._estimateTickLabel(e.text,n),i=Math.abs(Number(e.angle||0))*Math.PI/180;return t===`y`?Math.abs(Math.sin(i))*r.w+Math.abs(Math.cos(i))*r.h:Math.abs(Math.cos(i))*r.w+Math.abs(Math.sin(i))*r.h}_tickLabelsCollide(e,t,n,r,i=`center`){let a=new Map;for(let t of e){let e=Number(t.row||0);a.has(e)||a.set(e,[]),a.get(e).push(t)}for(let e of a.values()){if(e.sort((e,t)=>e.pos-t.pos),t===`x`&&i!==`center`){for(let t=1;t<e.length;t++){let a=e[t-1],o=e[t],s=o.pos-a.pos,c=Math.abs(Number(o.angle||0))*Math.PI/180;if(c){if(s*Math.sin(c)<n*1.2+r)return!0}else{let e=i===`end`?o:a;if(s<this._estimateTickLabel(e.text,n).w+r)return!0}}continue}let a=-1/0;for(let i of e){let e=this._tickLabelExtent(i,t,n),o=i.pos-e/2,s=i.pos+e/2;if(o<a+r)return!0;a=s}}return!1}_downsampleTickLabels(e,t,n,r,i=`center`){if(e.length<=1)return e;for(let a=2;a<=e.length;a++){let o=e.filter((e,t)=>t%a===0);if(!this._tickLabelsCollide(o,t,n,r,i))return o}return e.slice(0,1)}_layoutTickLabels(e,t,n){let r=this._axisTickLabelStrategy(e);if(r===`none`||r===`off`)return[];if(n.length<=1){let t=this._axisTickLabelAngle(e);return n.map(e=>({...e,angle:t===null?0:t,row:0}))}let i=Math.max(8,this._axisStyleNumber(e,`tick_label_size`,this._axisStyleNumber(e,`tick_size`,11))),a=this._axisTickLabelMinGap(e,t),o=t===`x`?this._axisTickLabelAnchor(e)??`center`:`center`,s=this._axisTickLabelAngle(e),c=s===null?0:s,l=n.map(e=>({...e,angle:c,row:0})),u=r;if(u===`auto`){if(!this._tickLabelsCollide(l,t,i,a,o))return 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e=r(s),n=s.side||`bottom`,i=n===`top`?o.y:o.y+o.h;for(let r of p.ticks){let a=this._dataPx(`x`,r);if(!Number.isFinite(a)||a<o.x-1||a>o.x+o.w+1)continue;let c=n===`top`?i-e.outward:i-e.inward;t(s,a-e.width/2,c,e.width,e.inward+e.outward,`tick_color`)}}if(!f){let e=r(c),n=c.side||`left`,i=n===`right`?o.x+o.w:o.x;for(let r of m.ticks){let a=this._dataPx(`y`,r);!Number.isFinite(a)||a<o.y-1||a>o.y+o.h+1||t(c,n===`right`?i-e.inward:i-e.outward,a-e.width/2,e.inward+e.outward,e.width,`tick_color`)}}for(let e of l){if(this._axisTickLabelStrategy(e)===`none`)continue;let n=this._axisTicks(e.id,this._axisTickTarget(e.id,Math.max(3,o.w/(e.kind===`time`?90:80)))),i=r(e),a=e.side||`bottom`,s=a===`top`?o.y:o.y+o.h;for(let r of n.ticks){let n=this._dataPx(e.id,r);if(!Number.isFinite(n)||n<o.x-1||n>o.x+o.w+1)continue;let c=a===`top`?s-i.outward:s-i.inward;t(e,n-i.width/2,c,i.width,i.inward+i.outward,`tick_color`)}}for(let e of u){if(this._axisTickLabelStrategy(e)===`none`)continue;let n=this._axisTicks(e.id,this._axisTickTarget(e.id,Math.max(3,o.h/45))),i=r(e),a=e.side||`right`,s=a===`right`?o.x+o.w:o.x;for(let r of n.ticks){let n=this._dataPx(e.id,r);!Number.isFinite(n)||n<o.y-1||n>o.y+o.h+1||t(e,a===`right`?s-i.inward:s-i.outward,n-i.width/2,i.inward+i.outward,i.width,`tick_color`)}}}let v=(e,t,n,r=`tick`,i=null)=>{if(!a)return;let o=document.createElement(`div`);o.textContent=e,o.dataset.xyLabelKind=r,o.dataset.xyAxis=n&&n.id!==void 0?String(n.id):``,o.dataset.xyAxisSide=n&&n.side?String(n.side):``;let s=r===`label`?`label_color`:this._axisStyleValue(n,`tick_label_color`)===void 0?`tick_color`:`tick_label_color`,c=r===`label`?`label_size`:this._axisStyleValue(n,`tick_label_size`)===void 0?`tick_size`:`tick_label_size`,l=``;this._axisStyleValue(n,s)!==void 0&&(l=`color:${this._axisStylePaint(n,s,this.theme.label)};`);let u=``;this._axisStyleValue(n,c)!==void 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i=this._dataPx(e.id,r);i<o.x-1||i>o.x+o.w+1||n.push({pos:i,text:this._axisTickText(e,r,t.step)})}for(let t of this._layoutTickLabels(e,`x`,n)){let n=this._axisStyleNumber(e,`tick_label_size`,this._axisStyleNumber(e,`tick_size`,11)),r=Number(t.row||0)*(Math.max(8,n)+4),i=e.side===`top`?o.y-18-r:o.y+o.h+6+r,a=this._xTickLabelTransform(e,t.angle);v(t.text,`left:${t.pos}px;top:${i}px;transform:${a.transform};transform-origin:${a.origin};`,e)}if(e.label&&this._axisTickLabelStrategy(e)!==`none`){let t=e.side===`top`?o.y-34:o.y+o.h+24,n=`left:${o.x+o.w/2}px;top:${t}px;transform:translateX(-50%);font-weight:500;`,r=this._axisLabelCss(e,`x`,n);v(e.label,r.css,e,`label`,r.style)}}let S=[];for(let e of m.labels||m.ticks){let t=this._dataPx(`y`,e);if(t<o.y-1||t>o.y+o.h+1)continue;let n=this._axisTickText(c,e,m.step);S.push({pos:t,text:n})}let C=(e,t,n)=>{let r=t?o.x+o.w+8:o.x-8,i=this._axisTickLabelAnchor(e)??(t?`start`:`end`),a=i===`end`?`-100%`:i===`start`?`0%`:`-50%`,s=i===`end`?`right`:i===`start`?`left`:`center`;return`left:${r}px;top:${n.pos}px;transform:translate(${a},-50%) rotate(${Number(n.angle||0)}deg);transform-origin:${s} center;`};for(let e of this._layoutTickLabels(c,`y`,S))v(e.text,C(c,c.side===`right`,e),c);for(let e of u){let t=this._axisTicks(e.id,this._axisTickTarget(e.id,Math.max(3,o.h/45))),n=[];for(let r of t.labels||t.ticks){let i=this._dataPx(e.id,r);if(i<o.y-1||i>o.y+o.h+1)continue;let a=this._axisTickText(e,r,t.step);n.push({pos:i,text:a})}for(let t of this._layoutTickLabels(e,`y`,n))v(t.text,C(e,e.side!==`left`,t),e);if(e.label&&this._axisTickLabelStrategy(e)!==`none`){let t=e.side===`left`?`left:10px;top:${o.y+o.h/2}px;transform:rotate(-90deg) translateX(50%);transform-origin:left;font-weight:500;`:`left:${o.x+o.w+40}px;top:${o.y+o.h/2}px;transform:rotate(90deg) translateX(-50%);transform-origin:left;font-weight:500;`,n=this._axisLabelCss(e,`y`,t);v(e.label,n.css,e,`label`,n.style)}}if(e.x_axis.label&&!d){let t=s.side===`top`?o.y-34:o.y+o.h+24,n=`left:${o.x+o.w/2}px;top:${t}px;transform:translateX(-50%);font-weight:500;`,r=this._axisLabelCss(s,`x`,n);v(e.x_axis.label,r.css,s,`label`,r.style)}if(e.y_axis.label&&!f){let t=c.side===`right`?`left:${o.x+o.w+40}px;top:${o.y+o.h/2}px;transform:rotate(90deg) translateX(-50%);transform-origin:left;font-weight:500;`:`left:10px;top:${o.y+o.h/2}px;transform:rotate(-90deg) translateX(50%);transform-origin:left;font-weight:500;`,n=this._axisLabelCss(c,`y`,t);v(e.y_axis.label,n.css,c,`label`,n.style)}this._drawAnnotationLabels(a)}_interactionTransitionActive(){let e=e=>e!=null;return!!this._viewAnim||this.gpuTraces.some(t=>e(t._densityFadeStart)||e(t._densitySwitchFadeStart)||e(t._drillFadeStart)||e(t._drillExitFadeStart)||!!t._densityNormAnim)}_renderPick(){let e=this.gl;(this._pickW!==this.canvas.width||this._pickH!==this.canvas.height)&&this._allocPickTex(),e.bindFramebuffer(e.FRAMEBUFFER,this.pickFbo),e.viewport(0,0,this.canvas.width,this.canvas.height),e.disable(e.BLEND),e.clearColor(0,0,0,0),e.clear(e.COLOR_BUFFER_BIT);let{x0:t,x1:n,y0:r,y1:i}=this.view,a=this.pickProg;e.useProgram(a);let o=t=>F(e,a,t);e.uniform1f(o(`u_dpr`),this.dpr);let s=1;for(let t of this.gpuTraces){let n=t.tier===`density`?t.drill&&!t._drillDying&&this._viewInside(t.drill.win)?t.drill:null:q(t.trace.kind).pointPick?t:null;if(!n||!n.n||s+n.n>2147483647){t.pickBase=-1,t.pickCount=0;continue}let[r,i]=this._axisRange(n.xAxis||t.xAxis),[c,l]=this._axisRange(n.yAxis||t.yAxis),u=this._map(n.xMeta,r,i,n.xAxis||t.xAxis),d=this._map(n.yMeta,c,l,n.yAxis||t.yAxis);e.uniform2f(o(`u_xmap`),u[0],u[1]),e.uniform2f(o(`u_ymap`),d[0],d[1]),this._setAxisUniforms(a,`u_x`,n.xMeta,n.xAxis||t.xAxis),this._setAxisUniforms(a,`u_y`,n.yMeta,n.yAxis||t.yAxis),e.uniform1f(o(`u_size`),n.size),e.uniform1i(o(`u_sizeMode`),n.sizeMode),e.uniform2f(o(`u_sizeRange`),n.sizeRange[0],n.sizeRange[1]);let f=!!(n._transitionPrevXBuf&&n._transitionPrevYBuf);e.uniform1i(o(`u_transitionActive`),+!!f),e.uniform1f(o(`u_transitionProgress`),n._transitionPositionProgress??1),e.uniform1i(o(`u_pick_base`),s),t.pickBase=s,t.pickCount=n.n;let p=n.sizeMode===1&&n.sBuf;this._bindVao(n,`pick`,[n.xBuf._fcId,n.yBuf._fcId,p?n.sBuf._fcId:0,f?n._transitionPrevXBuf._fcId:0,f?n._transitionPrevYBuf._fcId:0],()=>{this._vaoAttr(P.ax,n.xBuf,0,0),this._vaoAttr(P.ay,n.yBuf,0,0),p&&this._vaoAttr(P.a_sval,n.sBuf,0,0),f&&(this._vaoAttr(P.a_prevx,n._transitionPrevXBuf,0,0),this._vaoAttr(P.a_prevy,n._transitionPrevYBuf,0,0))}),p||e.vertexAttrib1f(P.a_sval,.5),e.drawArrays(e.POINTS,0,n.n),s+=n.n}e.enable(e.BLEND),e.bindFramebuffer(e.FRAMEBUFFER,null),this._pickDirty=!1}_pickAt(e,t){if(!this._pickable||this._glLost||!this.gl||this.gl.isContextLost())return null;if(this._pickDirty)try{this._renderPick()}catch(e){if(!this.gl||this.gl.isContextLost())return null;throw e}let n=this.gl,r=Math.round(e*this.dpr),i=Math.round((this.plot.h-t)*this.dpr);if(r<0||i<0||r>=this.canvas.width||i>=this.canvas.height)return null;let a=new Uint8Array(4);n.bindFramebuffer(n.FRAMEBUFFER,this.pickFbo),n.readPixels(r,i,1,1,n.RGBA,n.UNSIGNED_BYTE,a),n.bindFramebuffer(n.FRAMEBUFFER,null);let o=a[0]+a[1]*256+a[2]*65536+a[3]*16777216;if(o===0)return null;let s=this.gpuTraces.find(e=>e.pickBase>0&&o>=e.pickBase&&o<e.pickBase+e.pickCount);return s?{trace:s.trace.id,index:o-s.pickBase,g:s}:null}_decodeValue(e,t,n){return!e||!t||n<0||n>=e.length?NaN:e[n]/(t.scale||1)+t.offset}_dataFromCanvas(e,t,n=`x`,r=`y`){let[i,a]=this._axisRange(n),[o,s]=this._axisRange(r),c=this._axis(n),l=this._axis(r),u=this._axisCoord(c,i),d=this._axisCoord(c,a),f=this._axisCoord(l,o),p=this._axisCoord(l,s);return[u,d,f,p].every(Number.isFinite)?[this._axisValue(c,u+e/this.plot.w*(d-u)),this._axisValue(l,p-t/this.plot.h*(p-f))]:[NaN,NaN]}_nearestCpuIndex(e,t){let n=e&&e._cpu;if(!n||!n.x||!n.x.length)return-1;let r=n.xMeta||e.xMeta,i=this._axis(e.xAxis),a=this._axisCoord(i,t),o=-1,s=1/0,c=Math.min(n.x.length,e.n||n.x.length);for(let t=0;t<c;t++){let c=e._transitionPrevXValues,l=e._transitionPositionProgress,u=(c&&Number.isFinite(l)?c[t]+(n.x[t]-c[t])*l:n.x[t])/(r.scale||1)+r.offset,d=Math.abs(this._axisCoord(i,u)-a);d<s&&(s=d,o=t)}return o}_hoverAt(e,t){let n=null;for(let r of this.gpuTraces){if(r.tier===`density`)continue;let[i,a]=this._dataFromCanvas(e,t,r.xAxis,r.yAxis);if(!Number.isFinite(i)||!Number.isFinite(a))continue;if(r.heatmap&&r._cpuHeatmap){let e=this._heatmapHover(r,i,a);if(e)return e;continue}if(r.trace.bar&&r._cpu){let e=this._barHover(r,i,a);if(e)return e;continue}if(r._cpuRect){let e=this._rectHover(r,i,a);if(e)return e;continue}if(!r._cpu||!r._cpu.x||!r._cpu.y)continue;let o=this._nearestCpuIndex(r,i);if(o<0)continue;let s=r._transitionPositionProgress,c=r._transitionPrevXValues&&Number.isFinite(s)?r._transitionPrevXValues[o]+(r._cpu.x[o]-r._transitionPrevXValues[o])*s:r._cpu.x[o],l=r._transitionPrevYValues&&Number.isFinite(s)?r._transitionPrevYValues[o]+(r._cpu.y[o]-r._transitionPrevYValues[o])*s:r._cpu.y[o],u=c/(r._cpu.xMeta.scale||1)+r._cpu.xMeta.offset,d=l/(r._cpu.yMeta.scale||1)+r._cpu.yMeta.offset,f=this._dataPx(r.xAxis,u)-this.plot.x,p=this._dataPx(r.yAxis,d)-this.plot.y,m=Math.hypot(f-e,p-t);m<=12&&(!n||m<n.dist)&&(n={trace:r.trace.id,index:o,g:r,dist:m,synthetic:!0})}return n}_barHover(e,t,n){let r=e._cpu,i=e.orientation===1,a=Math.min(r.x.length,r.y.length,e.n||r.x.length);for(let o=0;o<a;o++){let a=this._decodeValue(r.x,r.xMeta,o),s=this._decodeValue(r.y,r.yMeta,o),c=e.value0Mode===1&&r.value0?this._decodeValue(r.value0,e.value0Meta,o):e.value0Const,l=Math.min(c??0,i?a:s),u=Math.max(c??0,i?a:s);if(i){if(t>=l&&t<=u&&Math.abs(n-s)<=e.width/2)return{trace:e.trace.id,index:o,g:e,synthetic:!0}}else if(Math.abs(t-a)<=e.width/2&&n>=l&&n<=u)return{trace:e.trace.id,index:o,g:e,synthetic:!0}}return null}_rectHover(e,t,n){let r=e._cpuRect,i=Math.min(r.x0.length,r.x1.length,r.y0.length,r.y1.length,e.n||r.x0.length);for(let a=0;a<i;a++){let i=this._decodeValue(r.x0,r.x0Meta,a),o=this._decodeValue(r.x1,r.x1Meta,a),s=this._decodeValue(r.y0,r.y0Meta,a),c=this._decodeValue(r.y1,r.y1Meta,a);if(t>=Math.min(i,o)&&t<=Math.max(i,o)&&n>=Math.min(s,c)&&n<=Math.max(s,c))return{trace:e.trace.id,index:a,g:e,synthetic:!0}}return null}_heatmapHover(e,t,n){let r=e.heatmap;if(!r||!e._cpuHeatmap)return null;let[i,a]=r.xRange,[o,s]=r.yRange;if(t<i||t>a||n<o||n>s)return null;let[c,l]=this._axisRange(e.xAxis)??[this.view.x0,this.view.x1],[u,d]=this._axisRange(e.yAxis)??[this.view.y0,this.view.y1],f=(c??this.view.x0)>(l??this.view.x1)?a-t:t-i,p=(u??this.view.y0)>(d??this.view.y1)?s-n:n-o,m=Math.min(r.w-1,Math.max(0,Math.floor(f/(a-i)*r.w))),h=Math.min(r.h-1,Math.max(0,Math.floor(p/(s-o)*r.h)));return{trace:e.trace.id,index:h*r.w+m,g:e,heatmap:{row:h,col:m},synthetic:!0}}_drawKeepPick(){this.draw(!0)}_hover(e){if(this._a11yKeyboardReadout=null,this._interactionTransitionActive()){let e=this._hoverId!==-1;this._hoverId=-1,this._hoverTarget=null,this._lastHoverXY=null,this._pickSeq=(this._pickSeq||0)+1,this._hideTooltip(),e&&this.draw();return}let t=this.canvas.getBoundingClientRect(),n=e.clientX-t.left,r=e.clientY-t.top,i=this._pickAt(n,r)||this._hoverAt(n,r);if(!i){let e=this._hoverId!==-1;this._hoverId=-1,this._hoverTarget=null,this._lastHoverXY=null,this._pickSeq=(this._pickSeq||0)+1,this._hideTooltip(),e&&this._drawKeepPick();return}let a=i.trace*1e9+i.index;if(this._lastHoverXY={clientX:e.clientX,clientY:e.clientY},a===this._hoverId){this._tooltipAnchor||this._renderTooltip(this._lastRow,e.clientX,e.clientY);return}this._hoverId=a,this._hoverTarget=i,this._showTooltip(i,e.clientX,e.clientY),this._drawKeepPick()}_asF32(e){return e instanceof ArrayBuffer?new Float32Array(e):e.byteOffset%4==0?new Float32Array(e.buffer,e.byteOffset,Math.floor(e.byteLength/4)):new Float32Array(e.buffer.slice(e.byteOffset,e.byteOffset+e.byteLength))}_asU8(e){return e instanceof ArrayBuffer?new Uint8Array(e):new Uint8Array(e.buffer,e.byteOffset,e.byteLength)}_asU32(e){return e instanceof ArrayBuffer?new Uint32Array(e):e.byteOffset%4==0?new Uint32Array(e.buffer,e.byteOffset,Math.floor(e.byteLength/4)):new Uint32Array(e.buffer.slice(e.byteOffset,e.byteOffset+e.byteLength))}_applyTheme(){this.theme=b(this.root),this._themeStale=!this.root.isConnected;for(let e of this.gpuTraces)q(e.trace.kind).refreshColor?.(this,e)}refreshTheme(){this._destroyed||(this._applyTheme(),this.draw())}_healStaleTheme(){return!this._themeStale||!this.root.isConnected?!1:(this._applyTheme(),!0)}destroy(){if(this._destroyed)return;this._destroyed=!0,this._dataAnim&&this._emitAnimationLifecycle?.(`end`,this._dataAnim.phase,{cancelled:!0}),X.unregister(this),this._ctxIo?.disconnect(),this._ctxIo=null,clearTimeout(this._ctxRecoveryTimer),this._ctxRecoveryTimer=null,clearTimeout(this._rebinTimer),this._rebinWorker&&=(this._rebinWorker.terminate(),this._rebinWorker._fcUrl&&URL.revokeObjectURL(this._rebinWorker._fcUrl),null),this._ro?.disconnect(),this._io?.disconnect(),this._io=null,this._themeWatch?.removeEventListener?.(`change`,this._onScheme),this._themeMutationObserver?.disconnect(),this._themeMutationObserver=null,this._dprMq?.removeEventListener?.(`change`,this._onDprChange),this._dprMq=null,this._unsubscribeComm?.(),this._unsubscribeComm=null;for(let{target:e,type:t,handler:n,options:r}of this._listeners.splice(0))e.removeEventListener(t,n,r);clearTimeout(this._viewTimer),this._viewTimer=null,this._viewEventRaf&&cancelAnimationFrame(this._viewEventRaf),this._viewEventRaf=null,this._wheelZoomRaf&&cancelAnimationFrame(this._wheelZoomRaf),this._wheelZoomRaf=null,this._pendingWheelZoom=null,clearTimeout(this._wheelZoomEndTimer),this._wheelZoomEndTimer=null,this._wheelGesture=null,this._linkChannel?.close?.(),this._linkChannel=null,this._raf&&cancelAnimationFrame(this._raf),this._raf=null,this._resizeRaf&&cancelAnimationFrame(this._resizeRaf),this._resizeRaf=null,this._pendingResize=null,this._resizeNeedsMeasure=!1,this._cancelViewAnimation(),this._dataAnimRaf&&cancelAnimationFrame(this._dataAnimRaf),this._dataAnimRaf=null,this._dataAnim=null,this._destroyTransitionOldTraces?.(),this._destroyGlResources();let e=this.gl&&this.gl.getExtension(`WEBGL_lose_context`);e&&e.loseContext(),this.gl=null,this.root.remove()}_deleteBuffers(e,t){let n=this.gl;if(!n||!e)return;let r=new Set;for(let i of t){let t=e[i];t&&!r.has(t)&&(r.add(t),n.deleteBuffer(t)),e[i]=null}}_destroyTraceResources(e,t){if(!e)return;this._destroyDensitySample(e),this._deleteVaos(e),this._deleteVaos(e.drill),this._deleteBuffers(e,[`xBuf`,`yBuf`,`cBuf`,`sBuf`,`selBuf`,`baseBuf`,`x0Buf`,`x1Buf`,`x2Buf`,`y0Buf`,`y1Buf`,`y2Buf`,`posBuf`,`value1Buf`,`value0Buf`,`_transitionPrevXBuf`,`_transitionPrevYBuf`,`_transitionPrevPosBuf`,`_transitionPrevValue1Buf`,`_transitionPrevValue0Buf`]),this._deleteBuffers(e.drill,[`xBuf`,`yBuf`,`cBuf`,`sBuf`,`selBuf`,`dBuf`]);let n=[];e.heatmap&&n.push(e.heatmap.tex);for(let t of e.densityCache||[])n.push(t&&t.tex);e.density&&n.push(e.density.tex),e._shownDensity&&n.push(e._shownDensity.tex);for(let e of n)e&&!t.has(e)&&(t.add(e),this.gl.deleteTexture(e));e.drill=null,e.density=null,e._shownDensity=null,e.densityCache=[],e.heatmap=null,e._cpu=null}_destroyGlResources(){let e=this.gl;if(!e)return;let t=new Set;for(let e of this.gpuTraces||[])this._destroyTraceResources(e,t);for(let n of this._lutCache.values())n&&!t.has(n)&&(t.add(n),e.deleteTexture(n));this._lutCache.clear(),this.pickFbo&&e.deleteFramebuffer(this.pickFbo),this.pickTex&&!t.has(this.pickTex)&&e.deleteTexture(this.pickTex),this.pickFbo=null,this.pickTex=null,this.quad&&e.deleteBuffer(this.quad),this.quad=null,this.quadVao&&e.deleteVertexArray(this.quadVao),this.quadVao=null;for(let t of this._progCache?this._progCache.values():[])t&&e.deleteProgram(t);this._progCache&&this._progCache.clear(),this._glPrograms=this._progCache,this.gpuTraces=[]}},lt=new Set([`color`,`label_color`,`label_opacity`,`opacity`,`width`,`head_size`,`head_style`,`tail_style`,`shaft_width_start`,`shaft_width_end`,`curve`,`angle_a`,`angle_b`,`gap_start`,`gap_end`,`start_offset`,`label_clear`,`dash`,`span_start`,`span_end`,`size`,`symbol`,`stroke_color`,`stroke_width`,`coordinate_space`]);function ut(e,t){if(typeof e.label_clear!=`string`)return 0;let n=e.label_clear.split(`,`).map(Number);if(n.length!==4||n.some(e=>!Number.isFinite(e)||e<0))return 0;let[r,i,a,o]=n,[s,c]=t,l=s>1e-9?i/s:s<-1e-9?r/-s:1/0,u=c>1e-9?o/c:c<-1e-9?a/-c:1/0,d=Math.min(l,u);return Number.isFinite(d)?d:0}function dt(e,t,n,r,i){let a=e=>Number.isFinite(Number(e))?Number(e):null;if(typeof i.start_offset==`string`){let n=i.start_offset.split(`,`).map(Number);n.length===2&&n.every(Number.isFinite)&&(e+=n[0],t+=n[1])}let o=a(i.angle_a),s=a(i.angle_b),c=a(i.curve),l=null,u=null;if(o!==null&&s!==null){let i=-o*Math.PI/180,a=-s*Math.PI/180,c=Math.cos(i)*Math.sin(a)-Math.sin(i)*Math.cos(a);if(Math.abs(c)>1e-6){let o=((n-e)*Math.sin(a)-(r-t)*Math.cos(a))/c;l=e+o*Math.cos(i),u=t+o*Math.sin(i)}}else if(c){let i=n-e,a=r-t;l=(e+n)/2+c*a,u=(t+r)/2-c*i}let d=(e,t,n,r)=>{let i=Math.hypot(n-e,r-t)||1;return[(n-e)/i,(r-t)/i]},f=l===null?d(e,t,n,r):d(e,t,l,u),p=l===null?d(n,r,e,t):d(n,r,l,u),m=Math.max(0,a(i.gap_start)||0,ut(i,f)),h=Math.max(0,a(i.gap_end)||0),g=Math.hypot(n-e,r-t),_=m+h<g*.9,v=_?[e+m*f[0],t+m*f[1]]:[e,t],y=_?[n+h*p[0],r+h*p[1]]:[n,r],b=l===null?d(v[0],v[1],y[0],y[1]):d(l,u,y[0],y[1]),x=l===null?d(y[0],y[1],v[0],v[1]):d(l,u,v[0],v[1]);return{p0:v,p1:y,control:l===null?null:[l,u],dir0:x,dir1:b}}function ft(e,t=24){let[n,r]=e.p0,[i,a]=e.p1;if(!e.control)return[[n,r],[i,a]];let[o,s]=e.control,c=[];for(let e=0;e<=t;e++){let l=e/t,u=1-l;c.push([u*u*n+2*u*l*o+l*l*i,u*u*r+2*u*l*s+l*l*a])}return c}function pt(e,t){if(!(t>0)||e.length<2)return e;let n=e.slice(),r=t;for(;n.length>=2;){let[e,t]=n[n.length-2],[i,a]=n[n.length-1],o=Math.hypot(i-e,a-t);if(o>r){let s=1-r/o;return n[n.length-1]=[e+s*(i-e),t+s*(a-t)],n}r-=o,n.pop()}return n}function mt(e,t,n){let r=[],i=[],a=e.length;for(let o=0;o<a;o++){let[s,c]=e[o],[l,u]=e[Math.max(0,o-1)],[d,f]=e[Math.min(a-1,o+1)],p=Math.hypot(d-l,f-u)||1,m=-(f-u)/p,h=(d-l)/p,g=(t+(n-t)*(o/Math.max(1,a-1)))/2;r.push([s+g*m,c+g*h]),i.push([s-g*m,c-g*h])}return r.concat(i.reverse())}Object.assign(Z.prototype,{_annotationPaint(e,t){return w(this.root,e&&e.color,t)},_annotationLabelPaint(e,t){return w(this.root,e&&(e.label_color||e.color),t)},_annotationStrokePaint(e,t){return w(this.root,e&&e.stroke_color,t)},_drawAnnotationMarker(e,t,n,r,i){if(!Number.isFinite(t)||!Number.isFinite(n))return;let a=Math.max(1,this._styleNumber(r,`size`,Number(i.size)||8)/2),o=[`circle`,`square`,`diamond`,`cross`].includes(i.symbol)?i.symbol:`circle`;if(e.save(),e.globalAlpha=this._styleNumber(r,`opacity`,1),e.fillStyle=this._annotationPaint(r,[.15,.39,.92,1]),e.strokeStyle=o===`cross`?this._annotationPaint(r,[.15,.39,.92,1]):this._annotationStrokePaint(r,[1,1,1,1]),e.lineWidth=Math.max(0,this._styleNumber(r,`stroke_width`,1.5)),e.beginPath(),o===`square`)e.rect(t-a,n-a,a*2,a*2);else if(o===`diamond`)e.moveTo(t,n-a),e.lineTo(t+a,n),e.lineTo(t,n+a),e.lineTo(t-a,n),e.closePath();else if(o===`cross`){e.moveTo(t-a,n),e.lineTo(t+a,n),e.moveTo(t,n-a),e.lineTo(t,n+a),e.stroke(),e.restore();return}else e.arc(t,n,a,0,Math.PI*2);e.fill(),e.lineWidth>0&&e.stroke(),e.restore()},_drawArrowLine(e,t,n,r,i,a){if(![t,n,r,i].every(Number.isFinite))return;let o=dt(t,n,r,i,a);e.save(),e.globalAlpha=this._styleNumber(a,`opacity`,1),e.strokeStyle=this._annotationPaint(a,[.4,.44,.52,1]),e.fillStyle=e.strokeStyle,e.lineWidth=Math.max(.5,this._styleNumber(a,`width`,1.5)),e.setLineDash(Array.isArray(a.dash)?a.dash:typeof a.dash==`string`?a.dash.split(`,`).map(Number):[]);let s=Number(a.shaft_width_start),c=Number(a.shaft_width_end),l=a.head_style||`triangle`,u=Math.max(4,this._styleNumber(a,`head_size`,8));if(Number.isFinite(s)||Number.isFinite(c)){let t=ft(o);l===`triangle`&&(t=pt(t,u*Math.cos(Math.PI/6)));let n=mt(t,Number.isFinite(s)?s:1,Number.isFinite(c)?c:1);e.beginPath(),e.moveTo(n[0][0],n[0][1]);for(let t=1;t<n.length;t++)e.lineTo(n[t][0],n[t][1]);e.closePath(),e.fill()}else e.beginPath(),e.moveTo(o.p0[0],o.p0[1]),o.control?e.quadraticCurveTo(o.control[0],o.control[1],o.p1[0],o.p1[1]):e.lineTo(o.p1[0],o.p1[1]),e.stroke();this._drawArrowEnd(e,o.p1,o.dir1,l,u),this._drawArrowEnd(e,o.p0,o.dir0,a.tail_style||`none`,u),e.restore()},_drawArrowEnd(e,t,n,r,i){if(r===`none`)return;let[a,o]=t,s=Math.atan2(n[1],n[0]);if(e.beginPath(),r===`bar`){e.moveTo(a-i/2*Math.sin(s),o+i/2*Math.cos(s)),e.lineTo(a+i/2*Math.sin(s),o-i/2*Math.cos(s)),e.stroke();return}let c=e=>[a-i*Math.cos(s-e*Math.PI/6),o-i*Math.sin(s-e*Math.PI/6)],[l,u]=c(1),[d,f]=c(-1);if(r===`v`){e.moveTo(l,u),e.lineTo(a,o),e.lineTo(d,f),e.stroke();return}e.moveTo(a,o),e.lineTo(l,u),e.lineTo(d,f),e.closePath(),e.fill()},_drawAnnotationShapes(e){let t=Array.isArray(this.spec.annotations)?this.spec.annotations:[];if(!t.length)return;let n=this.plot;e.save(),e.beginPath(),e.rect(n.x,n.y,n.w,n.h),e.clip();for(let r of t){let t=r&&typeof r.style==`object`?r.style:{};if(r.kind===`band`){let i=r.axis===`x`,a=i?this._dataPxX(Number(r.start)):this._dataPxY(Number(r.start)),o=i?this._dataPxX(Number(r.end)):this._dataPxY(Number(r.end));if(!Number.isFinite(a)||!Number.isFinite(o))continue;let s=Math.max(i?n.x:n.y,Math.min(a,o)),c=Math.min(i?n.x+n.w:n.y+n.h,Math.max(a,o));if(c<=s)continue;e.save(),e.globalAlpha=this._styleNumber(t,`opacity`,.14),e.fillStyle=this._annotationPaint(t,[.39,.45,.55,1]);let l=Math.max(0,Math.min(1,Number(t.span_start)||0)),u=t.span_end===void 0?1:Number(t.span_end),d=Math.max(l,Math.min(1,Number.isFinite(u)?u:1));i?e.fillRect(s,n.y+(1-d)*n.h,c-s,(d-l)*n.h):e.fillRect(n.x+l*n.w,s,(d-l)*n.w,c-s),e.restore()}else if(r.kind===`rule`){let i=r.axis===`x`,a=i?this._dataPxX(Number(r.value)):this._dataPxY(Number(r.value));if(!Number.isFinite(a)||i&&(a<n.x-1||a>n.x+n.w+1)||!i&&(a<n.y-1||a>n.y+n.h+1))continue;let o=Math.round(a)+.5;e.save(),e.globalAlpha=this._styleNumber(t,`opacity`,1),e.strokeStyle=this._annotationPaint(t,[.4,.44,.52,1]),e.lineWidth=Math.max(.5,this._styleNumber(t,`width`,1.5)),e.setLineDash(Array.isArray(t.dash)?t.dash:typeof t.dash==`string`?t.dash.split(`,`).map(Number):[]),e.beginPath();let s=Math.max(0,Math.min(1,Number(t.span_start)||0)),c=t.span_end===void 0?1:Number(t.span_end),l=Math.max(s,Math.min(1,Number.isFinite(c)?c:1));i?(e.moveTo(o,n.y+(1-l)*n.h),e.lineTo(o,n.y+(1-s)*n.h)):(e.moveTo(n.x+s*n.w,o),e.lineTo(n.x+l*n.w,o)),e.stroke(),e.restore()}else if(r.kind===`arrow`)this._drawArrowLine(e,this._dataPxX(Number(r.x0)),this._dataPxY(Number(r.y0)),this._dataPxX(Number(r.x1)),this._dataPxY(Number(r.y1)),t);else if(r.kind===`callout`){let n=this._dataPxX(Number(r.x)),i=this._dataPxY(Number(r.y)),a=Number.isFinite(Number(r.dx))?Number(r.dx):0,o=Number.isFinite(Number(r.dy))?Number(r.dy):0;this._drawArrowLine(e,n+a,i+o,n,i,t)}else r.kind===`marker`&&this._drawAnnotationMarker(e,this._dataPxX(Number(r.x)),this._dataPxY(Number(r.y)),t,r)}e.restore()},_drawAnnotationLabels(e){if(!e)return;let t=Array.isArray(this.spec.annotations)?this.spec.annotations:[];if(!t.length)return;let n=this.plot;for(let e of t){let t=typeof e.text==`string`?e.text:``;if(!t)continue;let r=e&&typeof e.style==`object`?e.style:{},i=null,a=null,o=null;if(e.kind===`text`)r.coordinate_space===`axes_fraction`?(i=n.x+Number(e.x)*n.w,a=n.y+(1-Number(e.y))*n.h):r.coordinate_space===`figure_fraction`?(i=Number(e.x)*this.size.w,a=(1-Number(e.y))*this.size.h):r.coordinate_space===`yaxis_transform`?(i=n.x+Number(e.x)*n.w,a=this._dataPxY(Number(e.y))):r.coordinate_space===`xaxis_transform`?(i=this._dataPxX(Number(e.x)),a=n.y+(1-Number(e.y))*n.h):(i=this._dataPxX(Number(e.x)),a=this._dataPxY(Number(e.y)));else if(e.kind===`rule`)e.axis===`x`?(i=this._dataPxX(Number(e.value)),a=n.y+6):(i=n.x+n.w-6,a=this._dataPxY(Number(e.value)));else if(e.kind===`band`)e.axis===`x`?(i=(this._dataPxX(Number(e.start))+this._dataPxX(Number(e.end)))/2,a=n.y+6):(i=n.x+n.w-6,a=(this._dataPxY(Number(e.start))+this._dataPxY(Number(e.end)))/2);else if(e.kind===`arrow`){let t=this._dataPxX(Number(e.x0)),n=this._dataPxY(Number(e.y0)),r=this._dataPxX(Number(e.x1)),s=this._dataPxY(Number(e.y1));i=(t+r)/2,a=(n+s)/2;let c=Math.hypot(r-t,s-n);c>1e-6&&(o=[-(s-n)/c,(r-t)/c],o[1]>0&&(o=[-o[0],-o[1]]))}else(e.kind===`callout`||e.kind===`marker`)&&(i=this._dataPxX(Number(e.x)),a=this._dataPxY(Number(e.y)));if(!Number.isFinite(i)||!Number.isFinite(a)||i<n.x-24||i>n.x+n.w+24||a<n.y-24||a>n.y+n.h+24)continue;let s=document.createElement(`div`);s.textContent=t;let c=Number.isFinite(Number(e.dx))?Number(e.dx):0,l=Number.isFinite(Number(e.dy))?Number(e.dy):0,u=e.anchor,d=String(r.vertical_align||``);e.kind===`rule`||e.kind===`band`?e.axis===`x`?(!u&&e.kind===`band`&&(u=`middle`),d||=`top`):(u||=`end`,!d&&e.kind===`band`&&(d=`middle`)):e.kind===`arrow`&&(u||=`middle`,d||=`middle`);let f=u===`middle`?`-50%`:u===`end`?`-100%`:`0px`,p=Number.isFinite(Number(r.rotation))?(Number(r.rotation)%360+360)%360:0,m=d===`center`||d===`middle`?`-50%`:d===`bottom`?`-100%`:d===`top`?`0px`:`calc(-100% + 0.35em)`,h=`translate(${f},${m})`;if(p===90||p===270){let e=p===270;h=`rotate(${e?90:-90}deg) translate(${d===`center`||d===`middle`?`-50%`:d===`top`?e?`0`:`-100%`:d===`bottom`?e?`-100%`:`0`:e?`0`:`-100%`},${u===`middle`?`-50%`:u===`end`?e?`0`:`-100%`:e?`-100%`:`0`})`}else p&&(h=`rotate(${-p}deg) translate(${f},${m})`);s.style.cssText=`position:absolute;left:${i+c}px;top:${a+l}px;transform:${h};transform-origin:0 0;pointer-events:none;white-space:pre-line;text-align:center;width:max-content;`,this._applySlot(s,`annotation_label`),this._applyClass(s,e.class_name);let g=e.kind!==`text`&&e.kind!==`callout`,_={};for(let[t,n]of Object.entries(r)){if(t===`opacity`&&e.kind===`text`){_[t]=n;continue}lt.has(t)||g&&t===`opacity`||(_[t]=n)}if(this._applyStyle(s,_),r&&(r.label_color||r.color)&&(s.style.color=this._annotationLabelPaint(r,this.theme.label)),r&&r.label_opacity!==void 0){let e=Number(r.label_opacity);Number.isFinite(e)&&(s.style.opacity=String(Math.max(0,Math.min(1,e))))}this.labels.appendChild(s);let v=getComputedStyle(s),y=(e,t)=>(parseFloat(e)||0)+(parseFloat(t)||0),b=y(v.paddingLeft,v.borderLeftWidth),x=y(v.paddingRight,v.borderRightWidth),S=y(v.paddingTop,v.borderTopWidth),C=y(v.paddingBottom,v.borderBottomWidth);if((b||x||S||C)&&p!==90&&p!==270){let e=f===`-100%`?x:f===`-50%`?0:-b,t=m===`-50%`?0:m===`0px`?-S:C;s.style.transform=`${p?`rotate(${-p}deg) `:``}translate(calc(${f} + ${e}px), calc(${m} + ${t}px))`}let w=o&&this.labels.getBoundingClientRect();if(o&&w.width>0){let e=w.width/this.size.w,t=s.getBoundingClientRect(),n=t.width/e/2*Math.abs(o[0])+t.height/e/2*Math.abs(o[1])+3;i+=o[0]*n,a+=o[1]*n,s.style.left=`${i+c}px`,s.style.top=`${a+l}px`}let T=this.labels.getBoundingClientRect();if(T.width>0){let e=T.width/this.size.w,t=s.getBoundingClientRect(),n=t.right>T.right?T.right-t.right:t.left<T.left?T.left-t.left:0,r=t.bottom>T.bottom?T.bottom-t.bottom:t.top<T.top?T.top-t.top:0;n&&(s.style.left=`${i+c+n/e}px`),r&&(s.style.top=`${a+l+r/e}px`)}}}}),Object.assign(Z.prototype,{_showTooltip(e,t,n){let r=this._localRow(e);if(this._lastRow=r,this._setTooltipAnchor(e,r,t,n),this._renderTooltip(r,t,n),this._interactionFlag(`hover`)&&this._dispatchChartEvent(`hover`,{row:r,trace:e.trace,index:e.index,view:this._eventView(`hover`),...this._hoverPayload(r,e,t,n)}),this.comm){this._pickSeq=(this._pickSeq||0)+1;let t={type:`pick`,seq:this._pickSeq,trace:e.trace,index:e.index},n=e.g;n&&n.tier===`density`&&n.drill&&n.drill.seq!==void 0&&(t.drill_seq=n.drill.seq),this.comm.send(t)}},_localRow(e){let t=e.g,n=t._cpu,r={trace:t.trace.id,index:e.index};if(e.heatmap&&t.heatmap&&t._cpuHeatmap){let n=t.heatmap,{row:i,col:a}=e.heatmap,o=n.xRange[0]+(a+.5)*((n.xRange[1]-n.xRange[0])/n.w),s=n.yRange[0]+(i+.5)*((n.yRange[1]-n.yRange[0])/n.h),[c,l]=this._sourceDisplayValue(t,`x`,o,`float`),[u,d]=this._sourceDisplayValue(t,`y`,s,`float`);r.x=c,r.y=u,l!==void 0&&(r.x_kind=l),d!==void 0&&(r.y_kind=d);let f=t._cpuHeatmap.grid[e.index];r.color_value=this._denormalizeUnit(f,t.trace.color&&t.trace.color.domain)}else if(t._cpuRect){let n=t._cpuRect,i=this._decodeValue(n.x0,n.x0Meta,e.index),a=this._decodeValue(n.x1,n.x1Meta,e.index);this._decodeValue(n.y0,n.y0Meta,e.index);let o=this._decodeValue(n.y1,n.y1Meta,e.index),[s,c]=this._sourceDisplayValue(t,`x`,i+(a-i)/2,n.x0Meta.kind),[l,u]=this._sourceDisplayValue(t,`y`,o,n.y1Meta.kind);r.x=s,r.y=l,c!==void 0&&(r.x_kind=c),u!==void 0&&(r.y_kind=u)}else if(n){let i=n.xMeta||t.xMeta,a=n.yMeta||t.yMeta,o=this._decodeValue(n.x,i,e.index),s=this._decodeValue(n.y,a,e.index),[c,l]=this._sourceDisplayValue(t,`x`,o,i&&i.kind),[u,d]=this._sourceDisplayValue(t,`y`,s,a&&a.kind);r.x=c,r.y=u,l!==void 0&&(r.x_kind=l),d!==void 0&&(r.y_kind=d);let f=t.trace.color;if(n.color&&f)if(f.mode===`categorical`&&Array.isArray(f.categories)){let t=Math.round(n.color[e.index]);t>=0&&t<f.categories.length&&(r.color_category=String(f.categories[t]))}else f.mode===`continuous`&&(r.color_value=this._denormalizeUnit(n.color[e.index],f.domain));let p=t.trace.size;n.size&&p&&p.mode===`continuous`&&(r.size_value=this._denormalizeUnit(n.size[e.index],p.domain))}return this._applySharedTooltipFields(r),r},_sourceDisplayValue(e,t,n,r){let i=t===`x`?this._axis(e&&e.xAxis):this._axis(e&&e.yAxis);return t===`x`&&i.kind===`category`||t===`y`&&i.kind===`category`?[re(n,i.categories||[]),void 0]:[n,r]},_sourceValue(e,t,n){if(!e||n<0)return[void 0,void 0];let r=t.channel;if(r===`x`||r===`y`){let t=e._cpu;if(!t||!t[r])return[void 0,void 0];let i=r===`x`?t.xMeta||e.xMeta:t.yMeta||e.yMeta,a=this._decodeValue(t[r],i,n);return Number.isFinite(a)?this._sourceDisplayValue(e,r,a,i&&i.kind):[void 0,void 0]}if(r===`color_value`){if(e._cpuHeatmap&&e._cpuHeatmap.grid&&e.trace.color)return[this._denormalizeUnit(e._cpuHeatmap.grid[n],e.trace.color.domain),void 0];if(e._cpu&&e._cpu.color&&e.trace.color)return[this._denormalizeUnit(e._cpu.color[n],e.trace.color.domain),void 0]}if(r===`color_category`&&e._cpu&&e._cpu.color&&e.trace.color){let t=Math.round(e._cpu.color[n]),r=e.trace.color.categories||[];if(t>=0&&t<r.length)return[String(r[t]),void 0]}return r===`size_value`&&e._cpu&&e._cpu.size&&e.trace.size?[this._denormalizeUnit(e._cpu.size[n],e.trace.size.domain),void 0]:[void 0,void 0]},_applySharedTooltipFields(e){let t=this.spec.tooltip&&this.spec.tooltip.sources;if(!(!t||typeof t!=`object`||e.x===void 0))for(let[n,r]of Object.entries(t)){if(!Array.isArray(r)||e[n]!==void 0)continue;let t=r.find(t=>t.trace===e.trace)||r[0];if(!t||!Number.isFinite(Number(t.trace)))continue;let i=this.gpuTraces.find(e=>e.trace.id===t.trace);if(!i)continue;let a=Number.isInteger(e.index)&&t.trace===e.trace?e.index:-1;!i._cpuHeatmap&&(a<0||!i._cpu||!i._cpu.x||a>=i._cpu.x.length)&&(a=this._nearestCpuIndex(i,e.x));let[o,s]=this._sourceValue(i,t,a);o!==void 0&&(e[n]=o,s!==void 0&&(e[`${n}_kind`]=s))}},_denormalizeUnit(e,t){let n=Number(e);if(!Number.isFinite(n)||!Array.isArray(t)||t.length<2)return n;let r=Number(t[0]),i=Number(t[1]);return!Number.isFinite(r)||!Number.isFinite(i)?n:r+n*(i-r)},_defaultTooltipLines(e){let t=[];return e.x!==void 0&&t.push(`x: ${N(e.x,e.x_kind)}`),e.y!==void 0&&t.push(`y: ${N(e.y,e.y_kind)}`),e.color_value!==void 0&&t.push(`color: ${N(e.color_value)}`),e.color_category!==void 0&&t.push(`${e.color_category}`),e.size_value!==void 0&&t.push(`size: ${N(e.size_value)}`),t.length||t.push(`#${e.index}`),t},_tooltipLookup(e,t){let n=this.spec.tooltip&&this.spec.tooltip.aliases||{},r=e[t]===void 0?n[t]:t;return!r||e[r]===void 0?[void 0,void 0]:[e[r],e[`${r}_kind`]]},_formatTooltipValue(e,t,n){let r=ie(e,n);return r===null?N(e,t):r},_tooltipLines(e){let t=this.spec.tooltip||{};if(!t.title&&!Array.isArray(t.fields))return this._defaultTooltipLines(e);let n=t.format||{},r=[];if(typeof t.title==`string`){let i=t.title.replace(/\{([^}]+)\}/g,(t,r)=>{let[i,a]=this._tooltipLookup(e,r);return i===void 0?``:this._formatTooltipValue(i,a,n[r])});i&&r.push(i)}if(Array.isArray(t.fields))for(let i of t.fields){if(typeof i!=`string`)continue;let[t,a]=this._tooltipLookup(e,i);t!==void 0&&r.push(`${i}: ${this._formatTooltipValue(t,a,n[i])}`)}return r.length?r:this._defaultTooltipLines(e)},_setTooltipAnchor(e,t,n,r){let i=e.g;if(!i){this._tooltipAnchor=null;return}let a=i.xAxis||`x`,o=i.yAxis||`y`,s=t.x,c=t.y;if(!Number.isFinite(s)||!Number.isFinite(c)){let e=this.canvas.getBoundingClientRect();[s,c]=this._dataFromCanvas(n-e.left,r-e.top,a,o)}this._tooltipAnchor=Number.isFinite(s)&&Number.isFinite(c)?{xAxis:a,yAxis:o,x:s,y:c}:null,this._tooltipAnchor&&!this._tooltipAnchorPx()&&(this._tooltipAnchor=null)},_tooltipAnchorPx(){let e=this._tooltipAnchor;if(!e)return null;let t=this._dataPx(e.xAxis,e.x),n=this._dataPx(e.yAxis,e.y),r=this.plot;return!Number.isFinite(t)||!Number.isFinite(n)||t<r.x||t>r.x+r.w||n<r.y||n>r.y+r.h?null:{lx:t,ly:n}},_hideTooltip(){this.tooltip.style.display=`none`,this._tooltipAnchor=null},_repositionTooltip(){if(!this._tooltipAnchor)return;let e=this._tooltipAnchorPx();if(!e){this.tooltip.style.display=`none`;return}this.tooltip.style.display=`block`,this._placeTooltip(e.lx,e.ly)},_placeTooltip(e,t){let n=this.tooltip.offsetWidth,r=this.tooltip.offsetHeight,i=Math.max(4,this.size.w-n-4),a=Math.max(4,Math.min(e+12,i)),o=t+12,s=t-r-12,c=o+r<=this.size.h-4?o:Math.max(4,s);this.tooltip.style.left=a+`px`,this.tooltip.style.top=c+`px`},_renderTooltip(e,t,n,r={}){if(!e||this.spec.show_tooltip===!1){this._hideTooltip();return}let i=this._tooltipLines(e);if(this._customTooltip||(this.tooltip.textContent=``,i.forEach((e,t)=>{t&&this.tooltip.appendChild(document.createElement(`br`)),this.tooltip.appendChild(document.createTextNode(e))})),this.a11yLive&&r.announce!==!1){let e=this._a11yKeyboardReadout,t=i.join(`, `),n=e?`Point ${e.flat+1} of ${e.total}. ${t}`:t;this.a11yLive.textContent!==n&&(this.a11yLive.textContent=n)}this.tooltip.style.display=`block`;let a=this._tooltipAnchorPx();if(a)this._placeTooltip(a.lx,a.ly);else if(this._tooltipAnchor)this.tooltip.style.display=`none`;else{let e=this.root.getBoundingClientRect();this._placeTooltip(t-e.left,n-e.top)}}}),Object.assign(Z.prototype,{_initInteraction(){let e=this.canvas,t=null,n=null;this.selRect=document.createElement(`div`),this.selRect.style.cssText=`position:absolute;display:none;pointer-events:none;z-index:4;`,this._applySlot(this.selRect,`selection`),this.root.appendChild(this.selRect),this.selLasso=document.createElementNS(`http://www.w3.org/2000/svg`,`svg`),this.selLasso.style.cssText=`position:absolute;display:none;pointer-events:none;z-index:4;overflow:visible;`,this.selLasso.dataset.xySelectionLassoOverlay=``,this.selLassoPath=document.createElementNS(`http://www.w3.org/2000/svg`,`path`),this.selLassoPath.dataset.xySelectionLasso=``,this.selLasso.appendChild(this.selLassoPath),this.selLassoHandles=document.createElementNS(`http://www.w3.org/2000/svg`,`g`),this.selLassoHandles.dataset.xySelectionLassoHandles=``,this.selLasso.appendChild(this.selLassoHandles),this.root.appendChild(this.selLasso),this._lassoPolygon=null;let r=null,i=t=>{if(!r||t.pointerId!==r.pointerId||!this._lassoPolygon)return;let n=e.getBoundingClientRect(),i=Math.max(0,Math.min(n.width,t.clientX-n.left)),a=Math.max(0,Math.min(n.height,t.clientY-n.top));this._lassoPolygon[r.index]=this._dataFromCanvas(i,a),this._renderLassoSelection(),t.preventDefault(),t.stopPropagation()};this._listen(this.selLasso,`pointerdown`,e=>{let t=e.target.closest?.(`[data-xy-selection-lasso-handle]`);if(!t||!this._lassoPolygon)return;let n=Number(t.dataset.xySelectionLassoHandle);if(!(!Number.isInteger(n)||!this._lassoPolygon[n])){r={index:n,pointerId:e.pointerId,original:[...this._lassoPolygon[n]],handle:t},t.dataset.xyActive=``,this._hideTooltip();try{this.selLasso.setPointerCapture(e.pointerId)}catch{}e.preventDefault(),e.stopPropagation()}}),this._listen(this.selLasso,`pointermove`,i),this._listen(this.selLasso,`pointerup`,e=>{if(!r||e.pointerId!==r.pointerId)return;i(e);let t=r.handle;r=null,delete t.dataset.xyActive,this._lassoPolygon&&this._sendSelectPolygon(this._lassoPolygon)}),this._listen(this.selLasso,`pointercancel`,e=>{!r||e.pointerId!==r.pointerId||(this._lassoPolygon&&(this._lassoPolygon[r.index]=r.original),delete r.handle.dataset.xyActive,r=null,this._lassoPolygon&&this._renderLassoSelection(),e.stopPropagation())}),this._interactionFlag(`crosshair`)&&(this.crosshairX=document.createElement(`div`),this.crosshairX.style.cssText=`position:absolute;display:none;pointer-events:none;z-index:3;width:1px;`,this._applySlot(this.crosshairX,`crosshair_x`),this.root.appendChild(this.crosshairX),this.crosshairY=document.createElement(`div`),this.crosshairY.style.cssText=`position:absolute;display:none;pointer-events:none;z-index:3;height:1px;`,this._applySlot(this.crosshairY,`crosshair_y`),this.root.appendChild(this.crosshairY));let a=(t,n)=>{let r=e.getBoundingClientRect();return this._dataFromCanvas(t-r.left,n-r.top)},o=(t,n)=>{let r=e.getBoundingClientRect(),i=Math.max(0,Math.min(r.width,t-r.left)),a=Math.max(0,Math.min(r.height,n-r.top));return{x:r.left+i,y:r.top+a,data:this._dataFromCanvas(i,a)}};this._listen(e,`pointerdown`,r=>{this._cancelViewAnimation();let i=this._interactionFlag(`pan`,!0),s=this._interactionFlag(`zoom`,!0),c=this._interactionFlag(`navigation`,!0),l=this._interactionFlag(`box_zoom`,!0),u=this._interactionFlag(`brush`,!0)&&this._interactionFlag(`select`,!0),d=this.dragMode.startsWith(`select`)?this.dragMode:null,f=(r.shiftKey||d)&&u&&this._pickable?r.shiftKey?`select`:d:this.dragMode===`zoom`&&c&&s&&l?`zoom`:null;if(f){let t=f.startsWith(`select`)&&this._lassoPolygon?this._lassoPolygon.map(e=>[...e]):null;f.startsWith(`select`)&&this._clearLassoOverlay();let i=f===`select-lasso`?o(r.clientX,r.clientY):null,s=i?i.data:a(r.clientX,r.clientY);n={mode:f,sx:r.clientX,sy:r.clientY,d0:s,points:i?[i]:null,previousLasso:t};try{e.setPointerCapture(r.pointerId)}catch{}this._hideTooltip();return}if(this.dragMode===`pan`&&c&&i){t={px:r.clientX,py:r.clientY,view:this._copyView(this.view),moved:!1,interactionId:++this._interactionSeq,axes:[...new Set([...this._axisPolicy(`pan_axes`),...this._axisIds().filter(e=>this._axisContained(e))])],changedAxes:[]};try{e.setPointerCapture(r.pointerId)}catch{}this._hideTooltip()}}),this._listen(e,`pointermove`,e=>{if(n){this._updateBand(n,e);return}if(t){t.moved=!0;let n=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e,t.view)]]));for(let r of t.axes){let i=this._axis(r),[a,o]=this._axisRange(r,t.view),s=this._axisCoord(i,a),c=this._axisCoord(i,o);if(![s,c].every(Number.isFinite)||s===c)continue;let l=this._axisDim(r),u=l===`x`?this.plot.w:this.plot.h,d=(l===`x`?e.clientX-t.px:e.clientY-t.py)/u*(c-s),f=l===`x`?-d:d;n[r]=[this._axisValue(i,s+f),this._axisValue(i,c+f)]}let r=this._setView({ranges:n},{source:`pan_drag`,phase:`update`,interactionId:t.interactionId});t.changedAxes=[...new Set([...t.changedAxes,...r])];return}this._updateCrosshair(e),this._hover(e)}),this._listen(e,`pointerup`,e=>{if(n){n.mode===`select-lasso`&&this._updateBand(n,e),this.selRect.style.display=`none`,this.selLasso.style.display=`none`;let t=a(e.clientX,e.clientY);if(n.mode===`select-lasso`?n.points.length>=3:Math.abs(e.clientX-n.sx)>3||Math.abs(e.clientY-n.sy)>3){if(n.mode===`zoom`&&this._interactionFlag(`zoom`,!0))this._zoomToBox(n.d0,t,!0,{source:`box_zoom`,phase:`end`,interactionId:++this._interactionSeq});else if(n.mode===`select-lasso`)if(n.points.length>=3){let e=this._simplifyLassoPoints(n.points);this._sendSelectPolygon(e.map(e=>e.data))}else n.previousLasso&&(this._lassoPolygon=n.previousLasso,this._renderLassoSelection());else{let e=n.d0;n.mode===`select-x`?(e=[n.d0[0],this.view.y0],t[1]=this.view.y1):n.mode===`select-y`&&(e=[this.view.x0,n.d0[1]],t[0]=this.view.x1),this._sendSelect(e,t)}this._ignoreNextClick=!0}else n.previousLasso&&(this._lassoPolygon=n.previousLasso,this._renderLassoSelection());n=null;return}t&&t.moved&&(this._ignoreNextClick=!0,t.changedAxes.length&&this._emitViewChange(`pan_drag`,{axes:t.changedAxes,phase:`end`,interactionId:t.interactionId})),t&&!t.moved&&this._hideTooltip(),t=null}),this._listen(e,`pointercancel`,()=>{this.selRect.style.display=`none`,this.selLasso.style.display=`none`,n?.previousLasso&&(this._lassoPolygon=n.previousLasso,this._renderLassoSelection()),n=null,t=null}),this._listen(e,`pointerleave`,()=>this._pointerHoverExit()),this._listen(document,`pointerover`,e=>{!this._lastHoverXY||this._a11yKeyboardReadout||this.root.contains(e.target)||this._pointerHoverExit()}),this._listen(e,`click`,e=>this._click(e)),this._listen(e,`wheel`,t=>{if(!this._interactionFlag(`navigation`,!0)||!this._interactionFlag(`zoom`,!0)||!this._interactionFlag(`wheel_zoom`,!0))return;t.preventDefault();let n=1.0015**t.deltaY,r=e.getBoundingClientRect(),i=(t.clientX-r.left)/r.width,a=1-(t.clientY-r.top)/r.height;this._queueWheelZoom(n,i,a)},{passive:!1}),this._listen(e,`dblclick`,()=>{this._interactionFlag(`navigation`,!0)&&this._interactionFlag(`double_click_reset`,!0)&&this._resetView(!0,`reset`)}),this._listen(e,`keydown`,e=>{e.key===`Escape`&&(n||t)&&(this.selRect.style.display=`none`,this.selLasso.style.display=`none`,n=null,t=null,e.preventDefault(),e.stopImmediatePropagation())}),this._listen(e,`keydown`,e=>this._onA11yKey(e))},_pointerHoverExit(){let e=this._hoverId!==-1;this._hoverId=-1,this._hoverTarget=null,this._lastHoverXY=null,this._a11yKeyboardReadout=null,this._pickSeq=(this._pickSeq||0)+1,this._hideTooltip(),this._hideCrosshair(),this._interactionFlag(`hover`)&&this._dispatchChartEvent(`leave`,{view:this._eventView(`leave`),active:!1}),e&&this._drawKeepPick()},_a11yPointGroups(){return(this.gpuTraces||[]).filter(e=>q(e.trace.kind).pointPick&&e.tier!==`density`&&e._cpu&&e._cpu.x&&e._cpu.y&&Math.min(e._cpu.x.length,e._cpu.y.length)>0)},_onA11yKey(e){let t={ArrowRight:1,ArrowDown:1,ArrowLeft:-1,ArrowUp:-1}[e.key],n=e.key===`Enter`||e.key===` `;if(t===void 0&&e.key!==`Home`&&e.key!==`End`&&e.key!==`Escape`&&!n)return;if(n){if(!this._interactionFlag(`click`)||!this._hoverTarget)return;e.preventDefault();let t=this._hoverTarget,n=this.canvas.getBoundingClientRect(),r=this._lastHoverXY?.clientX??n.left,i=this._lastHoverXY?.clientY??n.top,a={x:r-n.left,y:i-n.top},o={shift:e.shiftKey===!0,alt:e.altKey===!0,ctrl:e.ctrlKey===!0,meta:e.metaKey===!0},s={row:this._localRow?this._localRow(t):null,trace:t.trace,index:t.index,screen:a,modifiers:o,view:this._eventView(`click`)};if(this._dispatchChartEvent(`click`,s),this.comm){let e={type:`click`,trace:t.trace,index:t.index,screen:a,modifiers:o},n=t.g;n&&n.tier===`density`&&n.drill&&n.drill.seq!==void 0&&(e.drill_seq=n.drill.seq),this.comm.send(e)}return}if(e.key===`Escape`){e.preventDefault();let t=this._hoverId!==-1;this._hideTooltip(),this._hoverId=-1,this._hoverTarget=null,this._lastHoverXY=null,this._a11yKeyboardReadout=null,this._pickSeq=(this._pickSeq||0)+1,this.a11yLive&&(this.a11yLive.textContent=`Readout closed.`),t&&this._interactionFlag(`hover`)&&this._dispatchChartEvent(`leave`,{view:this._eventView(`leave`),active:!1}),t&&this._drawKeepPick();return}if(e.preventDefault(),this._interactionTransitionActive())return;let r=this._a11yPointGroups(),i=r.reduce((e,t)=>e+Math.min(t._cpu.x.length,t._cpu.y.length),0);if(!i)return;let a=Number.isInteger(this._a11yPointIndex)?this._a11yPointIndex:-1;a=e.key===`Home`?0:e.key===`End`?i-1:a<0?t>0?0:i-1:Math.max(0,Math.min(i-1,a+t)),this._a11yPointIndex=a;let o=a,s=r[0];for(let e of r){let t=Math.min(e._cpu.x.length,e._cpu.y.length);if(o<t){s=e;break}o-=t}let c={trace:s.trace.id,index:o,g:s},l=this._decodeValue(s._cpu.x,s._cpu.xMeta||s.xMeta,o),u=this._decodeValue(s._cpu.y,s._cpu.yMeta||s.yMeta,o),d=this._dataPx(s.xAxis||`x`,l)-this.plot.x,f=this._dataPx(s.yAxis||`y`,u)-this.plot.y,p=this.canvas.getBoundingClientRect(),m=p.left+Math.max(0,Math.min(p.width,d)),h=p.top+Math.max(0,Math.min(p.height,f));this._hoverId=c.trace*1e9+c.index,this._hoverTarget=c,this._lastHoverXY={clientX:m,clientY:h},this._a11yKeyboardReadout={flat:a,total:i},this._showTooltip(c,m,h),this._drawKeepPick()},_updateCrosshair(e){if(!this.crosshairX||!this.crosshairY)return;let t=this.canvas.getBoundingClientRect(),n=this.root.getBoundingClientRect(),r=e.clientX-t.left,i=e.clientY-t.top;if(r<0||r>t.width||i<0||i>t.height){this._hideCrosshair();return}let a=e.clientX-n.left,o=e.clientY-n.top;this.crosshairX.style.display=`block`,this.crosshairX.style.left=a+`px`,this.crosshairX.style.top=this.plot.y+`px`,this.crosshairX.style.height=this.plot.h+`px`,this.crosshairY.style.display=`block`,this.crosshairY.style.left=this.plot.x+`px`,this.crosshairY.style.top=o+`px`,this.crosshairY.style.width=this.plot.w+`px`},_hideCrosshair(){this.crosshairX&&(this.crosshairX.style.display=`none`),this.crosshairY&&(this.crosshairY.style.display=`none`)},_click(e){if(this._ignoreNextClick){this._ignoreNextClick=!1;return}if(!this._interactionFlag(`click`))return;let t=this.canvas.getBoundingClientRect(),n=e.clientX-t.left,r=e.clientY-t.top,[i,a]=this._dataFromCanvas(n,r),o=this._pickAt(n,r)||this._hoverAt(n,r),s={x:i,y:a,view:this._eventView(`click`),row:o&&this._localRow?this._localRow(o):null,trace:o?o.trace:null,index:o?o.index:null};if(this._dispatchChartEvent(`click`,s),o&&this.comm){let t={type:`click`,trace:o.trace,index:o.index,screen:{x:n,y:r},modifiers:{shift:e.shiftKey===!0,alt:e.altKey===!0,ctrl:e.ctrlKey===!0,meta:e.metaKey===!0}},i=o.g;i&&i.tier===`density`&&i.drill&&i.drill.seq!==void 0&&(t.drill_seq=i.drill.seq),this.comm.send(t)}},_updateBand(e,t){let n=this.canvas.getBoundingClientRect(),r=this.root.getBoundingClientRect();if(e.mode===`select-lasso`){let i=e.points[e.points.length-1],a=Math.max(0,Math.min(n.width,t.clientX-n.left)),o=Math.max(0,Math.min(n.height,t.clientY-n.top)),s=n.left+a,c=n.top+o;e.points.length<2048&&Math.hypot(s-i.x,c-i.y)>=3&&e.points.push({x:s,y:c,data:this._dataFromCanvas(a,o)});let l=e.points.map(e=>[Math.max(this.plot.x,Math.min(this.plot.x+this.plot.w,e.x-r.left)),Math.max(this.plot.y,Math.min(this.plot.y+this.plot.h,e.y-r.top))]);this.selLasso.style.display=`block`,this.selLasso.style.inset=`0`,this.selLasso.setAttribute(`width`,String(this.root.clientWidth)),this.selLasso.setAttribute(`height`,String(this.root.clientHeight)),this.selLassoPath.setAttribute(`d`,l.map((e,t)=>`${t?`L`:`M`}${e[0]} ${e[1]}`).join(` `)+` Z`);return}let i=Math.min(e.sx,t.clientX)-r.left,a=Math.min(e.sy,t.clientY)-r.top,o=Math.abs(t.clientX-e.sx),s=Math.abs(t.clientY-e.sy),c=this.plot.x,l=this.plot.y,u=Math.min(i+o,c+this.plot.w),d=Math.min(a+s,l+this.plot.h),f=Math.max(i,c),p=Math.max(a,l),m=u,h=d;e.mode===`select-x`&&(p=l,h=l+this.plot.h),e.mode===`select-y`&&(f=c,m=c+this.plot.w),this.selRect.dataset.xyBand=e.mode===`zoom`?`zoom`:`select`,this.selRect.style.display=`block`,this.selRect.style.left=f+`px`,this.selRect.style.top=p+`px`,this.selRect.style.width=Math.max(0,m-f)+`px`,this.selRect.style.height=Math.max(0,h-p)+`px`},_simplifyLassoPoints(e,t=6,n=16){let r=e.filter(e=>e&&Number.isFinite(e.x)&&Number.isFinite(e.y));if(r.length>3){let e=r[0],n=r[r.length-1];Math.hypot(e.x-n.x,e.y-n.y)<=t&&r.pop()}if(r.length<=3)return r.slice();let i=(e,t,n)=>{let r=n.x-t.x,i=n.y-t.y;if(r===0&&i===0)return(e.x-t.x)**2+(e.y-t.y)**2;let a=Math.max(0,Math.min(1,((e.x-t.x)*r+(e.y-t.y)*i)/(r*r+i*i))),o=t.x+a*r,s=t.y+a*i;return(e.x-o)**2+(e.y-s)**2},a=e=>{let t=new Uint8Array(r.length);t[0]=1,t[r.length-1]=1;let n=[[0,r.length-1]],a=e*e;for(;n.length;){let[e,o]=n.pop(),s=-1,c=a;for(let t=e+1;t<o;t++){let n=i(r[t],r[e],r[o]);n>c&&(s=t,c=n)}s>=0&&(t[s]=1,n.push([e,s],[s,o]))}return r.filter((e,n)=>t[n])},o=a(t);if(o.length<3&&(o=[r[0],r[Math.floor(r.length/2)],r[r.length-1]]),o.length>n){let e=t,i=Math.max(t,1);for(let t=0;t<16&&o.length>n;t++)e=i,i*=2,o=a(i);for(let t=0;t<12;t++){let t=(e+i)/2,r=a(t);r.length>n?e=t:(i=t,o=r)}o.length<3&&(o=[r[0],r[Math.floor(r.length/2)],r[r.length-1]])}return o},_clearLassoOverlay(){this._lassoPolygon=null,this.selLasso&&(this.selLasso.style.display=`none`,this.selLassoPath?.removeAttribute(`d`),this.selLassoHandles?.replaceChildren())},_renderLassoSelection(){let e=this._lassoPolygon;if(!this.selLasso||!this.selLassoPath||!this.selLassoHandles||!Array.isArray(e)||e.length<3)return;let[t,n]=this._axisRange(`x`),[r,i]=this._axisRange(`y`),a=this._axis(`x`),o=this._axis(`y`),s=this._axisCoord(a,t),c=this._axisCoord(a,n),l=this._axisCoord(o,r),u=this._axisCoord(o,i);if(![s,c,l,u].every(Number.isFinite)||s===c||l===u)return;let d=e.map(e=>{let t=this._axisCoord(a,e[0]),n=this._axisCoord(o,e[1]),r=this.plot.x+(t-s)/(c-s)*this.plot.w,i=this.plot.y+(u-n)/(u-l)*this.plot.h;return[Math.max(this.plot.x,Math.min(this.plot.x+this.plot.w,r)),Math.max(this.plot.y,Math.min(this.plot.y+this.plot.h,i))]});if(d.flat().every(Number.isFinite)){for(this.selLasso.style.display=`block`,this.selLasso.style.inset=`0`,this.selLasso.setAttribute(`width`,String(this.root.clientWidth)),this.selLasso.setAttribute(`height`,String(this.root.clientHeight)),this.selLassoPath.setAttribute(`d`,d.map((e,t)=>`${t?`L`:`M`}${e[0]} ${e[1]}`).join(` `)+` Z`);this.selLassoHandles.childElementCount<d.length;){let e=document.createElementNS(`http://www.w3.org/2000/svg`,`circle`);e.dataset.xySelectionLassoHandle=``,e.setAttribute(`r`,`4`),this.selLassoHandles.appendChild(e)}for(;this.selLassoHandles.childElementCount>d.length;)this.selLassoHandles.lastElementChild.remove();[...this.selLassoHandles.children].forEach((e,t)=>{e.dataset.xySelectionLassoHandle=String(t),e.setAttribute(`cx`,String(d[t][0])),e.setAttribute(`cy`,String(d[t][1])),e.setAttribute(`aria-label`,`Lasso point ${t+1}`)})}},_sendSelect(e,t,n={}){this._clearLassoOverlay();let r=Math.min(e[0],t[0]),i=Math.max(e[0],t[0]),a=Math.min(e[1],t[1]),o=Math.max(e[1],t[1]),s={x0:r,x1:i,y0:a,y1:o};this._historyRecord({source:n.source,interactionId:n.interactionId,history:n.history}),this._stateSelection={range:{...s}},this._lastBrush={mode:`box`,x0:r,x1:i,y0:a,y1:o},this._broadcastLinkedSelection({range:s}),this._dispatchChartEvent(`brush`,{range:s,view:this._eventView(`brush`)}),this.comm?this.comm.send({type:`select`,x0:r,x1:i,y0:a,y1:o}):this._selectLocal(r,i,a,o)},_sendSelectPolygon(e,t={}){if(!Array.isArray(e)||e.length<3)return;let n=e.map(e=>[e[0],e[1]]);n.every(e=>e.every(Number.isFinite))&&(this._historyRecord({source:t.source,interactionId:t.interactionId,history:t.history}),this._stateSelection={polygon:n.map(e=>[...e])},this._lassoPolygon=n,this._lastBrush={mode:`poly`,points:n},this._broadcastLinkedSelection({polygon:n}),this._renderLassoSelection(),this._dispatchChartEvent(`brush`,{polygon:n,view:this._eventView(`brush`)}),this.comm?this.comm.send({type:`select_polygon`,points:n}):this._selectLocalPolygon(n))},_selectLocalPolygon(e,t={}){let n=e.map(e=>e[0]),r=e.map(e=>e[1]),i=Math.min(...n),a=Math.max(...n),o=Math.min(...r),s=Math.max(...r),c=(t,n)=>{let r=!1;for(let i=0,a=e.length-1;i<e.length;a=i++){let[o,s]=e[i],[c,l]=e[a];s>n!=l>n&&t<(c-o)*(n-s)/(l-s)+o&&(r=!r)}return r},l=0;for(let e of this.gpuTraces){if(!e._cpu||e.tier===`density`)continue;let t=e._cpu.x,n=e._cpu.y,r=e._cpu.xMeta||e.xMeta,u=e._cpu.yMeta||e.yMeta,d=r.offset,f=r.scale||1,p=u.offset,m=u.scale||1,h=new Float32Array(e.n),g=0;for(let r=0;r<e.n;r++){let e=t[r]/f+d,l=n[r]/m+p;e>=i&&e<=a&&l>=o&&l<=s&&c(e,l)&&(h[r]=1,g++)}this._applySelMask(e,h),l+=g}this._selectionCount=l,this.draw(),t.dispatch!==!1&&this._dispatchChartEvent(`select`,{total:l,polygon:e,view:this._eventView(`select`)})},_selectLocal(e,t,n,r,i={}){let a=0;for(let i of this.gpuTraces){if(!i._cpu||i.tier===`density`)continue;let o=i._cpu.x,s=i._cpu.y,c=i._cpu.xMeta||i.xMeta,l=i._cpu.yMeta||i.yMeta,u=c.offset,d=c.scale||1,f=l.offset,p=l.scale||1,m=new Float32Array(i.n),h=0;for(let a=0;a<i.n;a++){let i=o[a]/d+u,c=s[a]/p+f;i>=e&&i<=t&&c>=n&&c<=r&&(m[a]=1,h++)}this._applySelMask(i,m),a+=h}this._selectionCount=a,this.draw(),i.dispatch!==!1&&this._dispatchChartEvent(`select`,{total:a,range:{x0:e,x1:t,y0:n,y1:r},view:this._eventView(`select`)})},_applySelMask(e,t){let n=this.gl;e.selBuf||=n.createBuffer(),n.bindBuffer(n.ARRAY_BUFFER,e.selBuf),n.bufferData(n.ARRAY_BUFFER,t,n.STATIC_DRAW),e.selActive=!0},_clearSelection(e={}){this._clearLassoOverlay(),e.dispatch!==!1&&this._stateSelection!==null&&this._stateSelection!==void 0&&this._historyRecord({source:e.source,interactionId:e.interactionId,history:e.history}),this._stateSelection=null;for(let e of this.gpuTraces)e.selActive=!1,e.drill&&(e.drill.selActive=!1);this._selectionCount=0,this._lastBrush=null,e.broadcast!==!1&&this._broadcastLinkedSelection({clear:!0}),e.dispatch!==!1&&this._interactionFlag(`select`,!0)&&(this.comm&&this.comm.send({type:`select_clear`}),this._dispatchChartEvent(`select`,{total:0,view:this._eventView(`select_clear`)}))},_clampModebar(e,t){let n=this._modebar;if(!n||!this.root)return;let r=e??(Number.parseFloat(n.style.left)||0),i=t??(Number.parseFloat(n.style.top)||0),a=Math.max(0,this.root.clientWidth-n.offsetWidth),o=Math.max(0,this.root.clientHeight-n.offsetHeight);n.style.left=`${Math.max(0,Math.min(a,r))}px`,n.style.top=`${Math.max(0,Math.min(o,i))}px`},_buildModebar(e){if(this.spec.show_modebar===!1)return;let t=document.createElement(`div`);t.style.cssText=`position:absolute;top:${this.plot.y+4}px;left:${this.plot.x+4}px;z-index:6;display:flex;opacity:0;pointer-events:none;transition:opacity .15s;`,this._applySlot(t,`modebar`),t.setAttribute(`role`,`toolbar`),t.setAttribute(`aria-label`,`Chart controls`),this._modebar=t,this._modeBtns={},this._modebarMoved=!1;let n=()=>{},r=()=>{},i=()=>{},a=e=>{let n=e||this._modebarDragging||t.contains(document.activeElement);t.style.opacity=n?`1`:`0`,t.style.pointerEvents=n?`auto`:`none`};this._listen(e,`pointerenter`,()=>a(!0)),this._listen(e,`pointerleave`,()=>{a(!1),n(!1),r(!1),i(!1)}),this._listen(t,`focusin`,()=>a(!0)),this._listen(t,`focusout`,n=>{!t.contains(n.relatedTarget)&&!e.matches(`:hover`)&&a(!1)});let o=document.createElement(`button`);o.type=`button`,o.title=`Click for toolbar options; drag to move`,o.setAttribute(`aria-label`,`Toolbar options`),o.setAttribute(`aria-haspopup`,`menu`),o.setAttribute(`aria-expanded`,`false`),o.dataset.xyModebarDragHandle=``,o.dataset.xyModebarExport=``,o.dataset.xyModebarExportTrigger=``,o.innerHTML=this._icon(`drag`),o.style.cssText=`display:flex;align-items:center;justify-content:center;pointer-events:auto;touch-action:none;`,this._applySlot(o,`modebar_button`),t.appendChild(o);let s=null,c=0;this._listen(o,`pointerdown`,e=>{if(e.pointerType===`mouse`&&e.button!==0)return;e.stopPropagation();let n=t.getBoundingClientRect();s={pointerId:e.pointerId,startX:e.clientX,startY:e.clientY,dx:e.clientX-n.left,dy:e.clientY-n.top,moved:!1};try{o.setPointerCapture(e.pointerId)}catch{}a(!0)}),this._listen(o,`pointermove`,a=>{if(!s||a.pointerId!==s.pointerId)return;let o=Math.hypot(a.clientX-s.startX,a.clientY-s.startY);if(!s.moved){if(o<6)return;s.moved=!0,this._modebarDragging=!0,this._modebarMoved=!0,t.style.transition=`none`,n(!1),r(!1),i(!1)}let c=e.getBoundingClientRect(),l=a.clientX-c.left-s.dx,u=a.clientY-c.top-s.dy;this._clampModebar(l,u)});let l=n=>{if(!s||n.pointerId!==s.pointerId)return;let r=s.moved,i=n.type===`pointercancel`;s=null,this._modebarDragging=!1,t.style.transition=`opacity .15s`,a(e.matches(`:hover`)),(r||i)&&(c=performance.now()+100)};this._listen(o,`pointerup`,l),this._listen(o,`pointercancel`,l),this._listen(o,`click`,e=>{if(e.stopPropagation(),performance.now()<=c){c=0;return}i(!this._exportMenuOpen)});let u=(e,n,r,i)=>{let a=document.createElement(`button`);return a.type=`button`,a.title=n,a.setAttribute(`aria-label`,n),i&&a.setAttribute(`aria-pressed`,`false`),a.innerHTML=this._icon(e),a.style.cssText=`display:flex;align-items:center;justify-content:center;pointer-events:auto;`,this._applySlot(a,`modebar_button`),this._listen(a,`pointerdown`,e=>e.stopPropagation()),this._listen(a,`click`,e=>{e.stopPropagation(),r()}),t.appendChild(a),i&&(this._modeBtns[i]=a),a},d=this._interactionFlag(`navigation`,!0),f=d&&this._interactionFlag(`pan`,!0),p=d&&this._interactionFlag(`zoom`,!0),m=p&&this._interactionFlag(`zoom_buttons`,!0),h=p&&this._interactionFlag(`box_zoom`,!0),g=d&&this._resetAxisPolicy().length>0,_=m||h||g,v=null,y=null;if(this._zoomMenuButton=null,this._zoomMenuLabel=null,_){v=u(`zoommenu`,`Zoom controls`,()=>{n(!this._zoomMenuOpen)}),this._zoomMenuButton=v,v.dataset.xyModebarMenuTrigger=``,v.replaceChildren();let e=document.createElement(`span`);e.dataset.xyModebarZoomPercent=``,e.textContent=`100%`,v.appendChild(e),y=document.createElement(`span`),y.dataset.xyModebarMenuIndicator=``,y.innerHTML=this._icon(`chevrondown`),v.appendChild(y),this._zoomMenuLabel=e,v.setAttribute(`aria-haspopup`,`menu`),v.setAttribute(`aria-expanded`,`false`)}let b=this._interactionFlag(`brush`,!0)&&this._interactionFlag(`select`,!0),x=null,S=null,C=null;b&&(x=u(`select`,`Selection controls`,()=>{r(!this._selectMenuOpen)}),x.dataset.xyModebarSelect=``,x.dataset.xyModebarSelectTrigger=``,x.setAttribute(`aria-haspopup`,`menu`),x.setAttribute(`aria-expanded`,`false`),x.replaceChildren(),C=document.createElement(`span`),C.dataset.xyModebarSelectIcon=``,C.innerHTML=this._icon(`select`),x.appendChild(C),S=document.createElement(`span`),S.dataset.xyModebarMenuIndicator=``,S.innerHTML=this._icon(`chevrondown`),x.appendChild(S),this._selectMenuButton=x,this._selectMenuIcon=C),f&&u(`pan`,`Pan`,()=>this._setDragMode(`pan`),`pan`),d&&this._historyEnabled()&&(this._historyBackBtn=u(`historyback`,`Back to previous view`,()=>this._historyBack()),this._historyBackBtn.dataset.xyModebarHistory=`back`,this._historyForwardBtn=u(`historyforward`,`Forward to next view`,()=>this._historyForward()),this._historyForwardBtn.dataset.xyModebarHistory=`forward`,this._updateHistoryButtons());let w=null;_&&(w=document.createElement(`div`),w.dataset.xyModebarMenu=``,w.setAttribute(`role`,`menu`),w.setAttribute(`aria-label`,`Zoom controls`),w.style.cssText=`position:absolute;display:none;flex-direction:column;z-index:7;pointer-events:auto;`,t.appendChild(w));let T=[],E=(e,t,r,i,a=!1)=>{let o=document.createElement(`button`);o.type=`button`,o.tabIndex=-1,o.dataset.xyModebarMenuItem=e,a&&(o.dataset.xySeparator=``),o.setAttribute(`role`,`menuitem`),o.style.cssText=`display:flex;align-items:center;pointer-events:auto;`,this._applySlot(o,`modebar_button`);let s=document.createElement(`span`);s.dataset.xyModebarMenuIcon=``,s.innerHTML=this._icon(e),o.appendChild(s);let c=document.createElement(`span`);return c.textContent=t,o.appendChild(c),this._listen(o,`pointerdown`,e=>e.stopPropagation()),this._listen(o,`click`,e=>{e.stopPropagation(),n(!1,!0),r()}),w.appendChild(o),T.push(o),i&&(this._modeBtns[i]=o),o};_&&(m&&(E(`zoomin`,this._actionLabel(`Zoom In`,this._axisPolicy(`zoom_axes`)),()=>this._zoomBy(.5,!0,`zoom_in`)),E(`zoomout`,this._actionLabel(`Zoom Out`,this._axisPolicy(`zoom_axes`)),()=>this._zoomBy(2,!0,`zoom_out`))),h&&E(`zoom`,this._actionLabel(`Box Zoom`,this._axisPolicy(`zoom_axes`)),()=>this._setDragMode(`zoom`),`zoom`),g&&E(`reset`,this._actionLabel(`Reset View`,this._resetAxisPolicy()),()=>this._resetView(!0,`reset`),null,m||h));let D=document.createElement(`div`);D.dataset.xyModebarMenu=``,D.dataset.xyModebarSelectMenu=``,D.setAttribute(`role`,`menu`),D.setAttribute(`aria-label`,`Selection controls`),D.style.cssText=`position:absolute;display:none;flex-direction:column;z-index:7;pointer-events:auto;`,t.appendChild(D);let O=[],k=(e,t,n)=>{let i=document.createElement(`button`);i.type=`button`,i.tabIndex=-1,i.dataset.xyModebarMenuItem=e,i.dataset.xyModebarSelectItem=n,i.setAttribute(`role`,`menuitem`),i.style.cssText=`display:flex;align-items:center;pointer-events:auto;`,this._applySlot(i,`modebar_button`);let a=document.createElement(`span`);a.dataset.xyModebarMenuIcon=``,a.innerHTML=this._icon(e),i.appendChild(a);let o=document.createElement(`span`);o.textContent=t,i.appendChild(o),this._listen(i,`pointerdown`,e=>e.stopPropagation()),this._listen(i,`click`,e=>{e.stopPropagation(),r(!1,!0),this._setDragMode(n)}),D.appendChild(i),O.push(i),this._modeBtns[n]=i};b&&(k(`select`,`Box Select`,`select`),k(`lasso`,`Lasso Select`,`select-lasso`),k(`selectx`,`X Range`,`select-x`),k(`selecty`,`Y Range`,`select-y`));let A=document.createElement(`div`);A.dataset.xyModebarMenu=``,A.dataset.xyModebarExportMenu=``,A.setAttribute(`role`,`menu`),A.setAttribute(`aria-label`,`Toolbar options`),A.style.cssText=`position:absolute;display:none;flex-direction:column;z-index:7;pointer-events:auto;`,t.appendChild(A);let j=[],ee=(e,t,n,r=!1)=>{let a=document.createElement(`button`);a.type=`button`,a.tabIndex=-1,a.dataset.xyModebarMenuItem=e,a.dataset.xyModebarExportItem=e,r&&(a.dataset.xySeparator=``),a.setAttribute(`role`,`menuitem`),a.style.cssText=`display:flex;align-items:center;pointer-events:auto;`,this._applySlot(a,`modebar_button`);let o=document.createElement(`span`);o.dataset.xyModebarMenuIcon=``,o.innerHTML=this._icon(e),a.appendChild(o);let s=document.createElement(`span`);return s.textContent=t,a.appendChild(s),this._listen(a,`pointerdown`,e=>e.stopPropagation()),this._listen(a,`click`,e=>{e.stopPropagation(),i(!1,!0),Promise.resolve(n()).catch(e=>console.error(`xy: ${t} failed`,e))}),A.appendChild(a),j.push(a),a},te={png:[`Export PNG`,()=>this._exportRaster(`png`)],jpeg:[`Export JPEG`,()=>this._exportRaster(`jpeg`)],webp:[`Export WebP`,()=>this._exportRaster(`webp`)],svg:[`Export SVG`,()=>this._exportSvg()],csv:[`Export CSV`,()=>this._exportCsv()]},M=Array.isArray(this._exportConfig().formats)?this._exportConfig().formats:[`png`,`svg`,`csv`];for(let e of M){let t=te[e];t&&ee(e,t[0],t[1])}v&&(n=(n,a=!1)=>{let o=!!n;if(o&&(r(!1),i(!1)),this._zoomMenuOpen=o,v.setAttribute(`aria-expanded`,String(o)),!o){w.style.display=`none`,y.style.transform=`none`,a&&v.focus();return}w.style.display=`flex`,w.style.visibility=`hidden`;let s=e.getBoundingClientRect(),c=t.getBoundingClientRect(),l=c.left-s.left,u=c.top-s.top,d=t.offsetHeight+6,f=-w.offsetHeight-6,p=c.bottom+6+w.offsetHeight<=s.bottom?d:f;y.style.transform=p===f?`rotate(180deg)`:`none`;let m=e.clientWidth-l-w.offsetWidth,h=e.clientHeight-u-w.offsetHeight;w.style.left=`${Math.max(-l,Math.min(m,v.offsetLeft))}px`,w.style.top=`${Math.max(-u,Math.min(h,p))}px`,w.style.visibility=`visible`}),r=(r,a=!1)=>{if(!x)return;let o=!!r;if(o&&(n(!1),i(!1)),this._selectMenuOpen=o,x.setAttribute(`aria-expanded`,String(o)),!o){D.style.display=`none`,S.style.transform=`none`,a&&x.focus();return}D.style.display=`flex`,D.style.visibility=`hidden`;let s=e.getBoundingClientRect(),c=t.getBoundingClientRect(),l=c.left-s.left,u=c.top-s.top,d=t.offsetHeight+6,f=-D.offsetHeight-6,p=c.bottom+6+D.offsetHeight<=s.bottom?d:f;S.style.transform=p===f?`rotate(180deg)`:`none`;let m=e.clientWidth-l-D.offsetWidth,h=e.clientHeight-u-D.offsetHeight;D.style.left=`${Math.max(-l,Math.min(m,x.offsetLeft))}px`,D.style.top=`${Math.max(-u,Math.min(h,p))}px`,D.style.visibility=`visible`},i=(i,a=!1)=>{let s=!!i&&j.length>0;if(s&&(n(!1),r(!1)),this._exportMenuOpen=s,o.setAttribute(`aria-expanded`,String(s)),!s){A.style.display=`none`,a&&o.focus();return}A.style.display=`flex`,A.style.visibility=`hidden`;let c=e.getBoundingClientRect(),l=t.getBoundingClientRect(),u=l.left-c.left,d=l.top-c.top,f=t.offsetHeight+6,p=-A.offsetHeight-6,m=l.bottom+6+A.offsetHeight<=c.bottom?f:p,h=e.clientWidth-u-A.offsetWidth,g=e.clientHeight-d-A.offsetHeight;A.style.left=`${Math.max(-u,Math.min(h,o.offsetLeft))}px`,A.style.top=`${Math.max(-d,Math.min(g,m))}px`,A.style.visibility=`visible`},this._closeModebarMenu=()=>{n(!1),r(!1),i(!1)},this._syncModebarSelect=()=>{if(!x)return;let e=!!this._pickable;e||(r(!1),this.dragMode.startsWith(`select`)&&this._setDragMode(`pan`)),x.style.display=e?`flex`:`none`},this._syncModebarSelect(),this._listen(document,`pointerdown`,e=>{this._zoomMenuOpen&&!t.contains(e.target)&&n(!1),this._selectMenuOpen&&!t.contains(e.target)&&r(!1),this._exportMenuOpen&&!t.contains(e.target)&&i(!1)}),v&&(this._listen(v,`keydown`,e=>{if(e.key!==`ArrowDown`&&e.key!==`ArrowUp`)return;e.preventDefault(),e.stopPropagation(),n(!0);let t=e.key===`ArrowDown`?0:T.length-1;T[t].focus()}),this._listen(w,`keydown`,e=>{if(e.key===`Escape`){e.preventDefault(),e.stopPropagation(),n(!1,!0);return}if(![`ArrowDown`,`ArrowUp`,`Home`,`End`].includes(e.key))return;e.preventDefault();let t=T.indexOf(document.activeElement),r=e.key===`Home`?0:e.key===`End`?T.length-1:t;e.key===`ArrowDown`&&(r=(t+1)%T.length),e.key===`ArrowUp`&&(r=(t-1+T.length)%T.length),T[r].focus()})),x&&(this._listen(x,`keydown`,e=>{if(e.key!==`ArrowDown`&&e.key!==`ArrowUp`)return;e.preventDefault(),e.stopPropagation(),r(!0);let t=e.key===`ArrowDown`?0:O.length-1;O[t].focus()}),this._listen(D,`keydown`,e=>{if(e.key===`Escape`){e.preventDefault(),e.stopPropagation(),r(!1,!0);return}if(![`ArrowDown`,`ArrowUp`,`Home`,`End`].includes(e.key))return;e.preventDefault();let t=O.indexOf(document.activeElement),n=e.key===`Home`?0:e.key===`End`?O.length-1:t;e.key===`ArrowDown`&&(n=(t+1)%O.length),e.key===`ArrowUp`&&(n=(t-1+O.length)%O.length),O[n].focus()})),this._listen(o,`keydown`,e=>{if(e.key!==`ArrowDown`&&e.key!==`ArrowUp`||!j.length)return;e.preventDefault(),e.stopPropagation(),i(!0);let t=e.key===`ArrowDown`?0:j.length-1;j[t].focus()}),this._listen(A,`keydown`,e=>{if(e.key===`Escape`){e.preventDefault(),e.stopPropagation(),i(!1,!0);return}if(![`ArrowDown`,`ArrowUp`,`Home`,`End`].includes(e.key))return;e.preventDefault();let t=j.indexOf(document.activeElement),n=e.key===`Home`?0:e.key===`End`?j.length-1:t;e.key===`ArrowDown`&&(n=(t+1)%j.length),e.key===`ArrowUp`&&(n=(t-1+j.length)%j.length),j[n].focus()}),e.appendChild(t),this._fitModebar(),a(e.matches(`:hover`)),this._setDragMode(this.dragMode)},_fitModebar(){let e=this._modebar;if(e){if(this._closeModebarMenu?.(),this._modebarMoved||(e.style.top=`${this.plot.y+4}px`,e.style.left=`${this.plot.x+4}px`),e.style.display=`flex`,!(e.offsetWidth+8<=this.plot.w&&e.offsetHeight+8<=this.plot.h)){e.style.display=`none`;return}this._clampModebar()}},_setDragMode(e){this.dragMode=e,this.canvas&&(this.canvas.dataset.xyDragmode=e);for(let[t,n]of Object.entries(this._modeBtns||{}))n.classList.toggle(`xy-active`,t===e),n.setAttribute(`aria-pressed`,String(t===e));this._zoomMenuButton?.classList.toggle(`xy-active`,e===`zoom`),this._selectMenuButton?.classList.toggle(`xy-active`,e.startsWith(`select`));let t={select:[`select`,`Box Select`],"select-lasso":[`lasso`,`Lasso Select`],"select-x":[`selectx`,`X Range`],"select-y":[`selecty`,`Y Range`]}[e];if(t&&this._selectMenuButton&&this._selectMenuIcon){let[e,n]=t;this._selectMenuIcon.innerHTML=this._icon(e),this._selectMenuButton.title=`Selection controls: ${n}`,this._selectMenuButton.setAttribute(`aria-label`,`Selection controls: ${n}`)}},_actionLabel(e,t){let n=Array.isArray(t)?t:[...t||[]];return n.length?`${e} on ${n.join(` and `)} ${n.length===1?`axis`:`axes`}`:e},_updateZoomMenuLabel(){if(!this._zoomMenuLabel||!this.view||!this.view0)return;let e=(e,t,n,r,i)=>{let a=this._axis(e),o=Math.abs(this._axisCoord(a,n)-this._axisCoord(a,t)),s=Math.abs(this._axisCoord(a,i)-this._axisCoord(a,r));return Number.isFinite(o)&&o>0&&Number.isFinite(s)&&s>0?s/o*100:null},t=[...this._zoomAxes()].map(t=>{let[n,r]=this._axisRange(t),[i,a]=this._axisRange(t,this.view0);return[t,e(t,n,r,i,a)]}).filter(e=>e[1]!==null),n=t[0]?.[1]??100,r=Math.round(n),i=n<1?`<1%`:`${r}%`,a=r>999?`${String(r).slice(0,3)}…%`:i;if(this._zoomMenuLabel.dataset.xyZoomExact===i&&this._zoomMenuLabel.textContent===a)return;this._zoomMenuLabel.textContent=a,this._zoomMenuLabel.dataset.xyZoomExact=i;let o=t.map(([e,t])=>`${e} ${Math.round(t)}%`).join(`, `);this._zoomMenuButton.title=`Zoom controls (${o||i})`,this._zoomMenuButton.setAttribute(`aria-label`,`Zoom controls, ${o||i}`)},_prefersReducedMotion(){return window.matchMedia?.(`(prefers-reduced-motion: reduce)`)?.matches===!0},_cancelViewAnimation(){this._animRaf&&cancelAnimationFrame(this._animRaf),this._animRaf=null,this._viewAnim=null},_setView(e,t={}){if(this._destroyed)return[];let n=this._clampView(this._viewFrom(e),{anchors:t.anchors}),r=this._axisIds().filter(e=>{let t=this._axisRange(e),r=this._axisRange(e,n);return t[0]!==r[0]||t[1]!==r[1]});if(!r.length)return[];this._viewAnim||this._historyRecord({source:t.source||`programmatic`,interactionId:t.interactionId,history:t.history});let i=t.animate===!0&&!this._prefersReducedMotion(),a=t.duration||180;if(!i||a<=0)return this._cancelViewAnimation(),this.view=n,this.draw(),t.request!==!1&&this._scheduleViewRequest(),this._emitViewChange(t.source||`programmatic`,{axes:r,phase:t.phase||`end`,interactionId:t.interactionId,broadcast:t.broadcast}),r;clearTimeout(this._viewTimer),this.seq+=1;let o=t.request!==!1,s=t.requestDelay??Math.min(55,Math.max(24,a*.35)),c=t.requestMaxWait??130;o&&this._scheduleViewRequest(n,{seq:this.seq,delay:s,maxWait:c});let l=this._now(),u=Math.max(18,a/5);if(this._viewAnim)return Object.assign(this._viewAnim,{target:n,tau:u,changedAxes:[...new Set([...this._viewAnim.changedAxes,...r])],source:t.source||`programmatic`,phase:t.phase||`end`,interactionId:t.interactionId,broadcast:t.broadcast}),r;this._viewAnim={target:n,last:l,tau:u,changedAxes:r,source:t.source||`programmatic`,phase:t.phase||`end`,interactionId:t.interactionId,broadcast:t.broadcast};let d=(e,t,n)=>e+(t-e)*n,f=e=>Math.max(...this._axisIds().map(t=>{let[n,r]=this._axisRange(t,e);return Math.abs(r-n)}),1e-12),p=(e,t)=>{let n=f(t)*1e-4;return Math.max(...this._axisIds().flatMap(n=>{let r=this._axisRange(n,e),i=this._axisRange(n,t);return[Math.abs(r[0]-i[0]),Math.abs(r[1]-i[1])]}))<=n},m=e=>{if(this._destroyed){this._animRaf=null;return}let t=this._viewAnim;if(!t){this._animRaf=null;return}let n=Math.max(0,Math.min(64,e-t.last));t.last=e;let r=1-Math.exp(-n/t.tau),i=p(this.view,t.target)?1:r,a={};for(let e of this._axisIds()){let n=this._axisRange(e),r=this._axisRange(e,t.target);a[e]=[d(n[0],r[0],i),d(n[1],r[1],i)]}this.view=this._copyView({ranges:a}),i<1?(this.draw(),this._animRaf=requestAnimationFrame(m)):(this._animRaf=null,this._viewAnim=null,this.view=t.target,this._lastLabelDraw=null,this.draw(),this._emitViewChange(t.source,{axes:t.changedAxes,phase:t.phase,interactionId:t.interactionId,broadcast:t.broadcast}))};return this._animRaf=requestAnimationFrame(m),r},_zoomLimitForAxis(e){if(!this._axisPolicy(`zoom_axes`).includes(e))return[null,null];let t=this.interaction?.zoom_limits;if(t&&typeof t==`object`&&!Array.isArray(t)){let n=t[e];if(Array.isArray(n)&&n.length===2)return n}return[1,null]},_clampAxisRange(e,t,n,r=.5){let i=this._axis(e),a=this._axisCoord(i,t),o=this._axisCoord(i,n);if(![a,o].every(Number.isFinite)||a===o)return this._axisRange(e,this.view0);let s=this.view0?.ranges?.[e];if(s){let t=this._axisCoord(i,s[0]),n=this._axisCoord(i,s[1]),c=Math.abs(n-t),[l,u]=this._zoomLimitForAxis(e),d=Number(l),f=Number(u),p=Number.isFinite(d)&&d>0?c/d:1/0,m=Number.isFinite(f)&&f>0?c/f:0,h=Math.abs(o-a),g=Math.max(m,Math.min(p,h));if(Number.isFinite(g)&&g>0&&g!==h){let e=o<a?-1:1,t=a+r*(o-a);a=t-r*g*e,o=t+(1-r)*g*e}}let c=-1/0,l=1/0;if(Array.isArray(i.bounds)&&i.bounds.length===2){let e=this._axisCoord(i,i.bounds[0]),r=this._axisCoord(i,i.bounds[1]);if(![a,o,e,r].every(Number.isFinite)||e===r)return[t,n];c=Math.min(e,r),l=Math.max(e,r)}if(s&&this._axisContained(e)){let e=this._axisCoord(i,s[0]),t=this._axisCoord(i,s[1]);[e,t].every(Number.isFinite)&&e!==t&&(c=Math.max(c,Math.min(e,t)),l=Math.min(l,Math.max(e,t)))}if(!Number.isFinite(c)||!Number.isFinite(l)||l<=c)return[this._axisValue(i,a),this._axisValue(i,o)];let u=o<a,d=Math.min(a,o),f=Math.max(a,o);if(f-d>=l-c)d=c,f=l;else{let e=Math.max(c-d,Math.min(l-f,0));d+=e,f+=e}let p=u?f:d,m=u?d:f;return[this._axisValue(i,p),this._axisValue(i,m)]},_clampView(e,t={}){let n=this._viewFrom(e,this.view0),r={};for(let e of this._axisIds()){let[i,a]=this._axisRange(e,n);r[e]=this._clampAxisRange(e,i,a,t.anchors?.[e]??.5)}return this._copyView({ranges:r})},_zoomAxes(){return new Set(this._axisPolicy(`zoom_axes`))},_zoomBy(e,t=!1,n=e<1?`zoom_in`:`zoom_out`){let r=this._viewAnim?this._viewAnim.target:this.view,i=this._zoomAxes(),a=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e,r)]]));for(let t of i){let[n,r]=a[t],i=this._zoomAxisRange(t,n,r,e,.5);i&&(a[t]=i)}this._setView({ranges:a},{animate:t,source:n,phase:`end`,interactionId:++this._interactionSeq})},_zoomAxisRange(e,t,n,r,i){let a=this._axis(e),o=this._axisCoord(a,t),s=this._axisCoord(a,n);if(![o,s].every(Number.isFinite)||o===s)return null;let c=o+i*(s-o);if(r<1){let e=Math.max(Math.abs(c),1e-30)*1e-12;if(Math.abs((s-o)*r)<e)return null}let l=c-(c-o)*r,u=c+(s-c)*r;if(r>1&&this.view0){let t=this._axisRange(e,this.view0),n=this._axisCoord(a,t[0]),r=this._axisCoord(a,t[1]),o=Math.abs(r-n);if([n,r].every(Number.isFinite)&&o>0&&Math.abs(u-l)>o){let e=o*Math.sign(u-l);return[this._axisValue(a,c-i*e),this._axisValue(a,c+(1-i)*e)]}}return[this._axisValue(a,l),this._axisValue(a,u)]},_zoomAt(e,t,n,r=!1,i=120,a={}){let o=this._viewAnim?this._viewAnim.target:this.view,s=Array.isArray(a.axes)?new Set(a.axes.filter(e=>this._zoomAxes().has(e))):this._zoomAxes(),c=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e,o)]])),l={};for(let r of s){let i=this._axisDim(r)===`x`?t:n,[a,o]=c[r],s=this._zoomAxisRange(r,a,o,e,i);s&&(c[r]=s),l[r]=i}return this._setView({ranges:c},{animate:r,duration:i,anchors:l,source:a.source||`wheel_zoom`,phase:a.phase||`update`,interactionId:a.interactionId})},_queueWheelZoom(e,t,n,r=null){if(!Number.isFinite(e)||e<=0)return;clearTimeout(this._wheelZoomEndTimer),this._wheelZoomEndTimer=null;let i=Array.isArray(r)?r.join(`,`):``;if(this._wheelGesture&&this._wheelGesture.scopeKey!==i){let e=this._wheelGesture;this._wheelGesture=null,e.axes.size&&this._emitViewChange(`wheel_zoom`,{axes:[...e.axes],phase:`end`,interactionId:e.interactionId})}this._wheelGesture||={interactionId:++this._interactionSeq,axes:new Set,scopeKey:i},this._pendingWheelZoom||={factor:1,fx:t,fy:n,interactionId:this._wheelGesture.interactionId,axes:[],axesScope:r},this._pendingWheelZoom.factor*=e,this._pendingWheelZoom.fx=t,this._pendingWheelZoom.fy=n,this._pendingWheelZoom.axesScope=r,!this._wheelZoomRaf&&(this._wheelZoomRaf=requestAnimationFrame(()=>{this._wheelZoomRaf=null;let e=this._pendingWheelZoom;if(this._pendingWheelZoom=null,!(!e||this._destroyed)){e.axes=this._zoomAt(e.factor,e.fx,e.fy,!1,120,{source:`wheel_zoom`,phase:`update`,interactionId:e.interactionId,axes:e.axesScope||void 0})||[];for(let t of e.axes)this._wheelGesture?.axes.add(t);clearTimeout(this._wheelZoomEndTimer),this._wheelZoomEndTimer=setTimeout(()=>{let e=this._wheelGesture;this._wheelGesture=null,!(this._destroyed||!e||!e.axes.size)&&this._emitViewChange(`wheel_zoom`,{axes:[...e.axes],phase:`end`,interactionId:e.interactionId})},90)}}))},_zoomToBox(e,t,n=!1,r={}){let i=this._zoomAxes(),a={};for(let n of[`x`,`y`]){let r=this._axis(n),[i,o]=this._axisRange(n),s=this._axisCoord(r,i),c=this._axisCoord(r,o),l=this._axisCoord(r,e[n===`x`?0:1]),u=this._axisCoord(r,t[n===`x`?0:1]);if(![s,c,l,u].every(Number.isFinite)||s===c)return[];a[n]=[(l-s)/(c-s),(u-s)/(c-s)]}let o=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e)]])),s={};for(let e of i){let t=this._axis(e),[n,r]=o[e],i=this._axisCoord(t,n),c=this._axisCoord(t,r),[l,u]=a[this._axisDim(e)],d=i+l*(c-i),f=i+u*(c-i),p=Math.max(Math.abs(d),Math.abs(f),1e-30)*1e-12;if(!Number.isFinite(d)||!Number.isFinite(f)||Math.abs(f-d)<p)continue;let m=c<i,h=Math.min(d,f),g=Math.max(d,f);o[e]=[this._axisValue(t,m?g:h),this._axisValue(t,m?h:g)],s[e]=.5}return this._setView({ranges:o},{animate:n,anchors:s,source:r.source||`box_zoom`,phase:r.phase||`end`,interactionId:r.interactionId})},_resetView(e=!0,t=`reset`,n=null){let r=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e)]]));for(let e of n||this._resetAxisPolicy())r[e]=[...this._axisRange(e,this.view0)];return this._setView({ranges:r},{animate:e,source:t,phase:`end`,interactionId:++this._interactionSeq})},_exportConfig(){let e=this.spec&&this.spec.export;return e&&typeof e==`object`?e:{}},_exportFilename(e){let t=this._exportConfig().filename;return typeof t==`string`&&t?`${t}.${e}`:`${String(this.spec.title||`xy-chart`).trim().toLowerCase().replace(/[^a-z0-9]+/g,`-`).replace(/^-+|-+$/g,``)||`xy-chart`}.${e}`},_downloadExport(e,t){let n=URL.createObjectURL(e),r=document.createElement(`a`);r.href=n,r.download=t,r.style.display=`none`,document.body.appendChild(r),r.click(),r.remove(),setTimeout(()=>URL.revokeObjectURL(n),0)},_exportSvgMarkup(){this._drawNow?.(),this.gl?.finish?.();let e=this.size.w,t=this.size.h,n=this.root.cloneNode(!0);n.style.width=`${e}px`,n.style.height=`${t}px`,n.style.margin=`0`,n.setAttribute(`xmlns`,`http://www.w3.org/1999/xhtml`);let r=getComputedStyle(this.root),i=[`color`,`font-family`,`font-size`,`font-style`,`font-weight`,`letter-spacing`,`line-height`],a=[`--chart-bg`,`--chart-text`,`--chart-grid`,`--chart-axis`,`--chart-tooltip-bg`,`--chart-tooltip-text`,`--chart-legend-bg`,`--chart-badge-bg`,`--chart-badge-text`,`--chart-modebar-bg`,`--chart-modebar-active`,`--chart-selection`,`--chart-selection-fill`,`--chart-zoom-selection`,`--chart-zoom-selection-fill`,`--chart-crosshair`,`--chart-annotation-text`,`--chart-cursor`,`--chart-cursor-pan`];for(let e=0;e<r.length;e++){let t=r.item(e);if(!t.startsWith(`--`))continue;let i=r.getPropertyValue(t).trim();i&&n.style.setProperty(t,i)}for(let e of[...i,...a]){let t=r.getPropertyValue(e).trim();t&&n.style.setProperty(e,t)}let o=[...this.root.querySelectorAll(`canvas`)],s=[...n.querySelectorAll(`canvas`)];for(let e=0;e<s.length;e++){let t=o[e],n=s[e];if(!t||!n)continue;let r=document.createElement(`img`);r.setAttribute(`src`,t.toDataURL(`image/png`)),r.setAttribute(`alt`,``),r.setAttribute(`style`,n.getAttribute(`style`)||``),r.setAttribute(`width`,String(t.clientWidth||t.width)),r.setAttribute(`height`,String(t.clientHeight||t.height));for(let e of n.attributes)e.name.startsWith(`data-`)&&r.setAttribute(e.name,e.value);n.replaceWith(r)}n.querySelectorAll(`[data-xy-slot="modebar"],[data-xy-slot="tooltip"],[data-xy-slot="selection"],[data-xy-selection-lasso-overlay],[data-xy-slot="crosshair_x"],[data-xy-slot="crosshair_y"]`).forEach(e=>e.remove());let c=document.createElement(`style`);return c.textContent=S,n.prepend(c),`<svg xmlns="http://www.w3.org/2000/svg" width="${e}" height="${t}" viewBox="0 0 ${e} ${t}"><foreignObject width="100%" height="100%">${new XMLSerializer().serializeToString(n)}</foreignObject></svg>`},_exportSvg(){let e=this._exportSvgMarkup();this._downloadExport(new Blob([e],{type:`image/svg+xml;charset=utf-8`}),this._exportFilename(`svg`))},_exportPng(){return this._exportRaster(`png`)},_exportRaster(e){let t=this._exportSvgMarkup(),n=`data:image/svg+xml;charset=utf-8,${encodeURIComponent(t)}`,r=new Image,i=this._exportConfig(),a={png:`image/png`,jpeg:`image/jpeg`,webp:`image/webp`}[e];return a?new Promise((t,o)=>{r.onload=()=>{let n=Number.isFinite(i.scale)&&i.scale>0?i.scale:Math.max(1,window.devicePixelRatio||1),s=document.createElement(`canvas`);s.width=Math.round(this.size.w*n),s.height=Math.round(this.size.h*n);let c=s.getContext(`2d`),l=typeof i.background==`string`&&i.background!==`auto`?i.background:null,u=l===`transparent`||l===`none`;e===`jpeg`?(c.fillStyle=l&&!u?l:`#ffffff`,c.fillRect(0,0,s.width,s.height)):l&&!u&&(c.fillStyle=l,c.fillRect(0,0,s.width,s.height)),c.scale(n,n),c.drawImage(r,0,0,this.size.w,this.size.h);let d=Number.isFinite(i.quality)?Math.min(1,Math.max(.01,i.quality/100)):.9;s.toBlob(n=>{if(!n){o(Error(`${e.toUpperCase()} encoding returned no data`));return}let r=n.type===`image/jpeg`?`jpg`:n.type===`image/webp`?`webp`:`png`;this._downloadExport(n,this._exportFilename(r)),t()},a,e===`png`?void 0:d)},r.onerror=()=>{o(Error(`chart SVG could not be rasterized`))},r.src=n}):Promise.reject(Error(`unsupported raster export ${e}`))},_exportCsvText(){let e=[[`trace`,`name`,`kind`,`index`,`x`,`y`,`x0`,`x1`,`y0`,`y1`,`value`]],t=e=>Number.isFinite(e)?e:``;for(let n of this.gpuTraces||[]){let r=n.trace||{},i=[r.id??``,r.name??``,r.kind??``];if(n._cpuRect){let r=n._cpuRect,a=Math.min(r.x0.length,r.x1.length,r.y0.length,r.y1.length);for(let n=0;n<a;n++)e.push([...i,n,``,``,t(this._decodeValue(r.x0,r.x0Meta,n)),t(this._decodeValue(r.x1,r.x1Meta,n)),t(this._decodeValue(r.y0,r.y0Meta,n)),t(this._decodeValue(r.y1,r.y1Meta,n)),``]);continue}if(n.heatmap&&n._cpuHeatmap){let a=n.heatmap;for(let o=0;o<n._cpuHeatmap.grid.length;o++){let s=Math.floor(o/a.w),c=o%a.w,l=a.xRange[0]+(c+.5)*((a.xRange[1]-a.xRange[0])/a.w),u=a.yRange[0]+(s+.5)*((a.yRange[1]-a.yRange[0])/a.h),d=this._denormalizeUnit(n._cpuHeatmap.grid[o],r.color?.domain);e.push([...i,o,t(l),t(u),``,``,``,``,t(d)])}continue}let a=n._cpu;if(!a?.x||!a?.y)continue;let o=Math.min(a.x.length,a.y.length,n.n||1/0);for(let r=0;r<o;r++)e.push([...i,r,t(this._decodeValue(a.x,a.xMeta||n.xMeta,r)),t(this._decodeValue(a.y,a.yMeta||n.yMeta,r)),``,``,``,``,``])}let n=e=>{let t=String(e??``),n=t.split(`"`).join(`""`);return t.includes(`,`)||t.includes(`"`)||t.includes(`\r`)||t.includes(`
+`)?`"${n}"`:t};return e.map(e=>e.map(n).join(`,`)).join(`\r
+`)+`\r
+`},_exportCsv(){this._downloadExport(new Blob([this._exportCsvText()],{type:`text/csv;charset=utf-8`}),this._exportFilename(`csv`))},_icon(e){let t=e=>`<svg width="15" height="15" viewBox="0 0 20 20" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round">${e}</svg>`;switch(e){case`zoomin`:return t(`<circle cx="8.5" cy="8.5" r="5.5"/><path d="M12.5 12.5 L17 17"/><path d="M8.5 6 V11 M6 8.5 H11"/>`);case`zoomout`:return t(`<circle cx="8.5" cy="8.5" r="5.5"/><path d="M12.5 12.5 L17 17"/><path d="M6 8.5 H11"/>`);case`pan`:return t(`<path d="M10 3 V17 M3 10 H17"/><path d="M10 3 L8 5 M10 3 L12 5"/><path d="M10 17 L8 15 M10 17 L12 15"/><path d="M3 10 L5 8 M3 10 L5 12"/><path d="M17 10 L15 8 M17 10 L15 12"/>`);case`zoom`:return t(`<path d="M7 3.5 H3.5 V7 M13 3.5 H16.5 V7 M3.5 13 V16.5 H7 M16.5 13 V16.5 H13"/>`);case`select`:return t(`<path d="M7 4 H4 V7 M13 4 H16 V7 M4 13 V16 H7 M16 13 V16 H13"/><circle cx="7" cy="8" r="1" fill="currentColor" stroke="none"/><circle cx="12.5" cy="9" r="1" fill="currentColor" stroke="none"/><circle cx="9.5" cy="13" r="1" fill="currentColor" stroke="none"/>`);case`lasso`:return t(`<path d="M5 5.5 C7 3 13.5 3.5 15.5 7 C17 10 14 15.5 9 15.5 C4.5 15.5 2.5 11 4 7.5 Z"/><circle cx="5" cy="5.5" r="1" fill="currentColor" stroke="none"/><circle cx="15.5" cy="7" r="1" fill="currentColor" stroke="none"/><circle cx="9" cy="15.5" r="1" fill="currentColor" stroke="none"/>`);case`selectx`:return t(`<path d="M5 4 V16 M15 4 V16 M7 10 H13 M7 10 L9 8 M7 10 L9 12 M13 10 L11 8 M13 10 L11 12"/>`);case`selecty`:return t(`<path d="M4 5 H16 M4 15 H16 M10 7 V13 M10 7 L8 9 M10 7 L12 9 M10 13 L8 11 M10 13 L12 11"/>`);case`chevrondown`:return t(`<path d="M6 8 L10 12 L14 8"/>`);case`collapse`:return t(`<path d="M4 5 H16 M4 15 H16 M7 8 L10 11 L13 8"/>`);case`expand`:return t(`<path d="M4 5 H16 M4 15 H16 M7 12 L10 9 L13 12"/>`);case`png`:return t(`<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/><path d="M7 13 L9 10.5 L11 12 L13.5 9 V15 H7 Z"/>`);case`jpeg`:return t(`<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/><circle cx="8.5" cy="10" r="1.2"/><path d="M7 15 L10 12 L13.5 15 Z"/>`);case`webp`:return t(`<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/><path d="M7 11 C8 10 9 10 10 11 C11 12 12 12 13.5 11"/><path d="M7 14 C8 13 9 13 10 14 C11 15 12 15 13.5 14"/>`);case`svg`:return t(`<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/><path d="M7 13 L9 9 L11 14 L13.5 10"/>`);case`csv`:return t(`<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/><path d="M7 9 H13 M7 12 H13 M7 15 H13 M9 8 V16"/>`);case`reset`:return t(`<path d="M4 10 a6 6 0 1 1 1.8 4.3"/><path d="M4 6 V10 H8"/>`);case`historyback`:return t(`<path d="M13 4 L7 10 L13 16"/>`);case`historyforward`:return t(`<path d="M7 4 L13 10 L7 16"/>`);case`drag`:return t(`<circle cx="7" cy="5" r=".8" fill="currentColor" stroke="none"/><circle cx="13" cy="5" r=".8" fill="currentColor" stroke="none"/><circle cx="7" cy="10" r=".8" fill="currentColor" stroke="none"/><circle cx="13" cy="10" r=".8" fill="currentColor" stroke="none"/><circle cx="7" cy="15" r=".8" fill="currentColor" stroke="none"/><circle cx="13" cy="15" r=".8" fill="currentColor" stroke="none"/>`);default:return t(``)}}});var ht=`
 const DATA = new Map();
 self.onmessage = (e) => {
   const m = e.data;
@@ -1874,8531 +767,4 @@ self.onmessage = (e) => {
     [grid.buffer]
   );
 };
-`;
-function xyCreateRebinWorker() {
-try {
-const url = URL.createObjectURL(
-new Blob([XY_REBIN_WORKER_SRC], { type: "application/javascript" })
-);
-const worker = new Worker(url);
-worker._fcUrl = url;
-return worker;
-} catch (e) {
-return null;
-}
-}
-const MARGIN = { l: 62, r: 14, t: 10, b: 42 };
-const COLORBAR_THICKNESS = 18;
-const COLORBAR_GAP = 24;
-const COMPACT_COLORBAR_GAP = 8;
-let XY_A11Y_ID = 0;
-const XY_SR_ONLY_STYLE =
-"position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;" +
-"clip:rect(0,0,0,0);white-space:nowrap;border:0;";
-const UNITLESS_STYLE_PROPS = new Set([
-"animation-iteration-count",
-"aspect-ratio",
-"border-image-outset",
-"border-image-slice",
-"border-image-width",
-"column-count",
-"flex",
-"flex-grow",
-"flex-shrink",
-"font-weight",
-"line-height",
-"opacity",
-"order",
-"orphans",
-"tab-size",
-"widows",
-"z-index",
-"zoom",
-"fill-opacity",
-"flood-opacity",
-"stop-opacity",
-"stroke-miterlimit",
-"stroke-opacity",
-]);
-const XY_CONTEXT_GOVERNOR = {
-views: new Set(),
-seq: 1,
-hiddenReleaseChannel: null,
-hiddenReleaseQueue: [],
-frameId: null,
-channel: null,
-foreign: null,
-_announcedLive: -1,
-_crossFrameReady: false,
-_rebalanceScheduled: false,
-budget() {
-const v = typeof window !== "undefined" ? window.XY_CONTEXT_BUDGET : null;
-return Number.isFinite(v) && v >= 1 ? Math.floor(v) : 12;
-},
-register(view) {
-this._initCrossFrame();
-this.views.add(view);
-},
-unregister(view) {
-view._ctxPendingReservation = false;
-this.views.delete(view);
-this._announceLive();
-},
-reserve(requester) {
-const live = [];
-let pending = 0;
-for (const view of this.views) {
-if (view !== requester && view.gl && !view._glLost && !view._destroyed) live.push(view);
-if (view !== requester && view._ctxPendingReservation && !view._destroyed) pending += 1;
-}
-const needsReservation = !requester._ctxPendingReservation;
-requester._ctxPendingReservation = true;
-let over = live.length + pending + (needsReservation ? 1 : 0) - this.budget();
-if (over <= 0) return;
-const candidates = live
-.filter((view) => !view._ctxVisible)
-.sort((a, b) => (a._ctxSeenSeq || 0) - (b._ctxSeenSeq || 0));
-for (const view of candidates) {
-if (over <= 0) break;
-if (view._releaseContext()) over -= 1;
-}
-if (over <= 0) return;
-const visible = live
-.filter((view) => view._ctxVisible)
-.sort((a, b) => (a._ctxSeenSeq || 0) - (b._ctxSeenSeq || 0));
-for (const view of visible) {
-if (over <= 0) break;
-if (view._releaseContext()) over -= 1;
-}
-},
-acquired(requester) {
-requester._ctxPendingReservation = false;
-this._rebalance();
-this._announceLive();
-},
-cancel(requester) {
-requester._ctxPendingReservation = false;
-},
-_initCrossFrame() {
-if (this._crossFrameReady) return;
-this._crossFrameReady = true;
-this.foreign = new Map();
-if (typeof BroadcastChannel === "undefined") return;
-try {
-this.frameId = `${Date.now().toString(36)}-${Math.random().toString(36).slice(2)}`;
-this.channel = new BroadcastChannel("xy-webgl-context-governor");
-this.channel.onmessage = (event) => this._onForeignMessage(event.data);
-this._post({ t: "hello", id: this.frameId });
-if (typeof window !== "undefined" && window.addEventListener) {
-window.addEventListener("pagehide", () => this._post({ t: "bye", id: this.frameId }));
-window.addEventListener("pageshow", (event) => {
-if (!event || !event.persisted) return;
-this.foreign.clear();
-this._announcedLive = -1;
-this._post({ t: "hello", id: this.frameId });
-this._announceLive(true);
-});
-}
-} catch (_err) {
-this.channel = null;
-}
-},
-_post(msg) {
-try {
-if (this.channel) this.channel.postMessage(msg);
-} catch (_err) {
-
-}
-},
-_onForeignMessage(msg) {
-if (!msg || !this.foreign || msg.id === this.frameId) return;
-if (msg.t === "live") {
-this.foreign.set(msg.id, msg.n | 0);
-this._rebalance();
-} else if (msg.t === "hello") {
-this._announceLive(true);
-} else if (msg.t === "bye") {
-this.foreign.delete(msg.id);
-}
-},
-localLive() {
-let n = 0;
-for (const view of this.views) {
-if (view.gl && !view._glLost && !view._destroyed) n += 1;
-}
-return n;
-},
-foreignLive() {
-let n = 0;
-if (this.foreign) for (const count of this.foreign.values()) n += count;
-return n;
-},
-_announceLive(force) {
-if (!this.channel) return;
-const n = this.localLive();
-if (!force && n === this._announcedLive) return;
-this._announcedLive = n;
-this._post({ t: "live", id: this.frameId, n });
-},
-_rebalance() {
-if (this.localLive() + this.foreignLive() - this.budget() <= 0) return;
-let target = null;
-for (const view of this.views) {
-if (view.gl && !view._glLost && !view._destroyed && !view._ctxVisible) {
-if (!target || (view._ctxSeenSeq || 0) < (target._ctxSeenSeq || 0)) target = view;
-}
-}
-if (!target || !target._releaseContext()) return;
-if (this.localLive() + this.foreignLive() - this.budget() > 0 && !this._rebalanceScheduled) {
-this._rebalanceScheduled = true;
-setTimeout(() => {
-this._rebalanceScheduled = false;
-this._rebalance();
-}, 0);
-}
-},
-scheduleHiddenReleases() {
-if (this.hiddenReleaseChannel !== null) return;
-this.hiddenReleaseQueue = Array.from(this.views);
-const channel = new MessageChannel();
-this.hiddenReleaseChannel = channel;
-channel.port1.onmessage = () => {
-if (
-typeof document === "undefined" ||
-document.visibilityState !== "hidden"
-) {
-this.cancelHiddenReleases();
-return;
-}
-let view = null;
-while (this.hiddenReleaseQueue.length && !view) {
-const candidate = this.hiddenReleaseQueue.shift();
-if (
-!candidate._destroyed &&
-candidate.gl &&
-!candidate._glLost &&
-!candidate.gl.isContextLost()
-) view = candidate;
-}
-if (!view) {
-this.cancelHiddenReleases();
-return;
-}
-view._releaseContext();
-channel.port2.postMessage(null);
-};
-channel.port2.postMessage(null);
-},
-cancelHiddenReleases() {
-this.hiddenReleaseChannel?.port1.close();
-this.hiddenReleaseChannel?.port2.close();
-this.hiddenReleaseChannel = null;
-this.hiddenReleaseQueue = [];
-},
-};
-function xyInitiallyVisible(el) {
-if (typeof window === "undefined" || !el.getBoundingClientRect) return true;
-const rect = el.getBoundingClientRect();
-if (!rect.width && !rect.height) return false;
-const vh = window.innerHeight || 0;
-const vw = window.innerWidth || 0;
-return (
-rect.bottom > -0.25 * vh && rect.top < 1.25 * vh && rect.right > -0.25 * vw && rect.left < 1.25 * vw
-);
-}
-class ChartView {
-constructor(el, spec, buffer, comm) {
-if (spec.protocol !== PROTOCOL) {
-el.textContent =
-`xy: protocol mismatch (client speaks ${PROTOCOL}, kernel sent ${spec.protocol}). ` +
-"Update the xy package and restart the kernel.";
-throw new Error("protocol mismatch");
-}
-this.spec = spec;
-this.interaction = spec.interaction || {};
-this.markStyle = spec.mark_style || {};
-this.axes = this._normalizeAxes(spec);
-this.comm = comm;
-this.seq = 0;
-this._densityStamp = 0;
-this._viewRequestBurstStart = null;
-this._viewAnim = null;
-this._animRaf = null;
-this._dataAnim = null;
-this._dataAnimRaf = null;
-this._transitionOldTraces = null;
-this._transitionView = null;
-this._wheelZoomRaf = null;
-this._pendingWheelZoom = null;
-this._lastLabelDraw = null;
-this._lutCache = new Map();
-this._listeners = [];
-this._glPrograms = [];
-this._progCache = new Map();
-this._bufSeq = 0;
-this._destroyed = false;
-this._resizeRaf = null;
-this._pendingResize = null;
-this._resizeNeedsMeasure = false;
-this._hoverId = -1;
-this._hoverTarget = null;
-this._viewEventRaf = null;
-this._linkedSource = `${Date.now().toString(36)}-${Math.random().toString(36).slice(2)}`;
-this.dragMode = "none";
-this._interactionSeq = 0;
-this.fluid = spec.width === "100%";
-this.fluidH = spec.height === "100%";
-const rect = this.fluid || this.fluidH ? el.getBoundingClientRect() : null;
-const cw = this.fluid ? Math.round(rect.width) || 640 : spec.width;
-const ch = this.fluidH ? Math.round(rect.height) || 420 : spec.height;
-this.size = {
-w: Math.max(this.fluid ? 120 : 48, cw),
-h: Math.max(this.fluidH ? 120 : 48, ch),
-};
-this._layout();
-this._buildDom(el);
-this.theme = readTheme(this.root);
-this._themeStale = !this.root.isConnected;
-this._payload = buffer;
-this._glLost = false;
-this._ctxReleasedExt = null;
-this._ctxReleases = 0;
-this._ctxRecoveries = 0;
-this._ctxLostPending = false;
-this._ctxRecoverRequested = false;
-this._ctxVisible = xyInitiallyVisible(el);
-XY_CONTEXT_GOVERNOR.register(this);
-if (this._ctxVisible) this._ctxSeenSeq = XY_CONTEXT_GOVERNOR.seq++;
-this._contextLossCount = 0;
-this._contextRestoreCount = 0;
-this._contextRecoveryError = null;
-try {
-this._initGl(buffer);
-} catch (err) {
-XY_CONTEXT_GOVERNOR.unregister(this);
-if (String(err && err.message || err) === "webgl2 unavailable") {
-this.root.textContent = "xy: WebGL2 unavailable in this browser.";
-}
-throw err;
-}
-this.canvas.dataset.xyCtx = "live";
-this.view0 = this._clampView({
-ranges: Object.fromEntries(Object.entries(this.axes).map(([id, axis]) => [id, [...axis.range]])),
-});
-this.view = this._copyView(this.view0);
-this.dragMode = this._resolveDefaultDragAction();
-this._initA11y();
-this.root.dataset.xyContextState = "ready";
-this._initContextLossRecovery();
-this._armContextVisibilityWatch();
-this._initViewState();
-this._initInteraction();
-this._buildModebar(this.root);
-this._initAxisBands();
-if ((this.fluid || this.fluidH) && typeof ResizeObserver !== "undefined") {
-this._ro = new ResizeObserver((entries) => {
-const r = entries[entries.length - 1].contentRect;
-if (r.width || r.height) this._queueResize(r.width, r.height);
-});
-this._ro.observe(this.root);
-}
-this._armVisibilityResizeWatch();
-this._armDprWatch();
-this._initLinkedCharts();
-this._themeWatch = window.matchMedia("(prefers-color-scheme: dark)");
-this._onScheme = () => this.refreshTheme();
-this._themeWatch.addEventListener?.("change", this._onScheme);
-if (typeof MutationObserver !== "undefined") {
-this._themeMutationObserver = new MutationObserver(() => this.refreshTheme());
-for (let node = this.root; node; node = node.parentElement) {
-this._themeMutationObserver.observe(node, {
-attributes: true,
-attributeFilter: ["class", "style"],
-});
-}
-}
-this._unsubscribeComm = comm ? comm.onMessage((msg, buffers) => this._onKernelMsg(msg, buffers)) : null;
-if (this._startEntranceAnimation) this._startEntranceAnimation();
-else this.draw();
-}
-_layout() {
-const compact = this.size.w < 520;
-const pad = Array.isArray(this.spec.padding) ? this.spec.padding : null;
-const colorbar = this.spec.colorbar;
-const verticalColorbar = colorbar && colorbar.orientation !== "horizontal";
-const horizontalColorbar = colorbar && colorbar.orientation === "horizontal";
-const responsivePad = this.fluid && compact && pad;
-const marginLeft = pad ? (responsivePad ? Math.min(pad[3], 46) : pad[3]) : compact ? 46 : MARGIN.l;
-this._compactVerticalColorbar = Boolean(this.fluid && compact && verticalColorbar);
-const colorbarRightRoom = verticalColorbar
-? (this._compactVerticalColorbar
-? COMPACT_COLORBAR_GAP + COLORBAR_THICKNESS + 8
-: 86 + (colorbar.label ? 18 : 0))
-: 0;
-const colorbarBottomRoom = horizontalColorbar ? 38 + (colorbar.label ? 16 : 0) : 0;
-const baseRight = pad ? (responsivePad ? Math.min(pad[1], 8) : pad[1]) : compact ? 8 : MARGIN.r;
-const marginRight = baseRight + colorbarRightRoom;
-const marginTop = pad ? pad[0] : compact ? 6 : MARGIN.t;
-const marginBottom = (pad ? pad[2] : compact ? 36 : MARGIN.b) + colorbarBottomRoom;
-const hasBottomAxis = Object.values(this.axes || {}).some((axis) =>
-axis && String(axis.id || "").startsWith("x") && axis.side !== "top" &&
-this._axisTickLabelStrategy(axis) !== "none");
-this._bottomAxisRoom = hasBottomAxis ? (compact ? 36 : MARGIN.b) : 0;
-const topAxisRoom = Object.values(this.axes || {}).some((axis) =>
-axis && String(axis.id || "").startsWith("x") && axis.side === "top" &&
-this._axisTickLabelStrategy(axis) !== "none")
-? (compact ? 26 : 32)
-: 0;
-const top = marginTop + (this.spec.title ? (compact ? 26 : 30) : 0) + topAxisRoom;
-const rightAxes = Object.values(this.axes || {}).filter((axis) =>
-axis && String(axis.id || "").startsWith("y") &&
-axis.side === "right" && this._axisTickLabelStrategy(axis) !== "none");
-this._rightAxisRoom = rightAxes.length ? (compact ? 42 : 54) : 0;
-const right = marginRight + this._rightAxisRoom;
-this.plot = {
-x: marginLeft,
-y: top,
-w: Math.max(40, this.size.w - marginLeft - right),
-h: Math.max(40, this.size.h - top - marginBottom),
-};
-}
-_normalizeAxes(spec) {
-const axes = { ...(spec.axes || {}) };
-if (spec.x_axis) axes.x = spec.x_axis;
-if (spec.y_axis) axes.y = spec.y_axis;
-for (const [id, axis] of Object.entries(axes)) {
-if (axis && typeof axis === "object" && !axis.id) axis.id = id;
-}
-return axes;
-}
-_axis(axisId) {
-const id = axisId || "x";
-return this.axes[id] || (String(id).startsWith("y") ? this.axes.y : this.axes.x) || {};
-}
-_axisDim(axisId) {
-return String(axisId || "x").startsWith("y") ? "y" : "x";
-}
-_axisMode(axisId) {
-return this._axis(axisId).scale === "log" ? 1 : 0;
-}
-_axisIds() {
-return Object.keys(this.axes || {});
-}
-_copyView(view) {
-const ranges = {};
-for (const axisId of this._axisIds()) {
-const range = view?.ranges?.[axisId] || this._axis(axisId).range || [0, 1];
-ranges[axisId] = [Number(range[0]), Number(range[1])];
-}
-const x = ranges.x || [0, 1];
-const y = ranges.y || [0, 1];
-return { ranges, x0: x[0], x1: x[1], y0: y[0], y1: y[1] };
-}
-_viewFrom(next, base = this.view) {
-const ranges = {};
-for (const axisId of this._axisIds()) {
-const source = next?.ranges?.[axisId]
-|| (axisId === "x" && next?.x0 !== undefined ? [next.x0, next.x1] : null)
-|| (axisId === "y" && next?.y0 !== undefined ? [next.y0, next.y1] : null)
-|| base?.ranges?.[axisId]
-|| this._axis(axisId).range
-|| [0, 1];
-ranges[axisId] = [Number(source[0]), Number(source[1])];
-}
-return this._copyView({ ranges });
-}
-_axisPolicy(name) {
-const configured = this.interaction?.[name];
-if (!Array.isArray(configured) || !configured.length) return this._axisIds();
-const declared = new Set(this._axisIds());
-return [...new Set(configured.filter((axisId) => declared.has(axisId)))];
-}
-_resetAxisPolicy() {
-if (Array.isArray(this.interaction?.reset_axes)) return this._axisPolicy("reset_axes");
-const axes = [];
-if (this._interactionFlag("pan", true)) axes.push(...this._axisPolicy("pan_axes"));
-if (this._interactionFlag("zoom", true)) axes.push(...this._axisPolicy("zoom_axes"));
-return [...new Set(axes)];
-}
-_axisContained(axisId) {
-if (!this._interactionFlag("navigation", true)) return false;
-if (!this._interactionFlag("zoom", true)) return false;
-if (!this._axisPolicy("zoom_axes").includes(axisId)) return false;
-if (!this._interactionFlag("pan", true)) return true;
-return !this._axisPolicy("pan_axes").includes(axisId);
-}
-_resolveDefaultDragAction() {
-const requested = typeof this.interaction?.default_drag_action === "string"
-? this.interaction.default_drag_action : "auto";
-const canNavigate = this._interactionFlag("navigation", true);
-const canPan = canNavigate && this._interactionFlag("pan", true);
-const canZoom = canNavigate && this._interactionFlag("zoom", true)
-&& this._interactionFlag("box_zoom", true);
-const canSelect = this._pickable && this._interactionFlag("select", true)
-&& this._interactionFlag("brush", true);
-if (requested === "auto") {
-if (canPan) return "pan";
-if (canZoom) return "zoom";
-if (canSelect) return "select";
-return "none";
-}
-if (requested === "pan") return canPan ? "pan" : this._resolveDefaultDragActionFallback();
-if (requested === "zoom") return canZoom ? "zoom" : this._resolveDefaultDragActionFallback();
-if (requested.startsWith("select")) {
-return canSelect ? requested : this._resolveDefaultDragActionFallback();
-}
-return requested === "none" ? "none" : this._resolveDefaultDragActionFallback();
-}
-_resolveDefaultDragActionFallback() {
-const saved = this.interaction.default_drag_action;
-this.interaction.default_drag_action = "auto";
-const resolved = this._resolveDefaultDragAction();
-this.interaction.default_drag_action = saved;
-return resolved;
-}
-_axisCoord(axis, value) {
-const v = Number(value);
-if (!Number.isFinite(v)) return NaN;
-if (axis && axis.scale === "log") return v > 0 ? Math.log10(v) : NaN;
-return v;
-}
-_axisValue(axis, coord) {
-if (axis && axis.scale === "log") return Math.pow(10, coord);
-return coord;
-}
-_axisRange(axisId, view = this.view) {
-const mapped = view?.ranges?.[axisId];
-if (Array.isArray(mapped)) return [mapped[0], mapped[1]];
-if (axisId === "x" && view) return [view.x0, view.x1];
-if (axisId === "y" && view) return [view.y0, view.y1];
-const axis = this._axis(axisId);
-const r = axis.range || [0, 1];
-return [Number(r[0]), Number(r[1])];
-}
-_axisTicks(axisId, target) {
-const axis = this._axis(axisId);
-const [lo, hi] = this._axisRange(axisId);
-if (Array.isArray(axis.tick_values)) {
-const a = Math.min(lo, hi), b = Math.max(lo, hi);
-const ticks = axis.tick_values.map(Number).filter((v) => Number.isFinite(v) && v >= a && v <= b);
-return { ticks, labels: ticks, step: ticks.length > 1 ? Math.abs(ticks[1] - ticks[0]) : 1 };
-}
-if (axis.kind === "time") return timeTicks(lo, hi, target);
-if (axis.kind === "category") return categoryTicks(lo, hi, axis.categories || [], target);
-if (axis.scale === "log") return logTicks(lo, hi, target);
-return linearTicks(lo, hi, target);
-}
-_axisTickText(axis, value, step) {
-if (Array.isArray(axis.tick_values) && Array.isArray(axis.tick_labels)) {
-const index = axis.tick_values.findIndex((candidate) => Number(candidate) === Number(value));
-if (index >= 0 && index < axis.tick_labels.length) return String(axis.tick_labels[index]);
-}
-return fmtAxis(axis, value, step);
-}
-_axisTickTarget(axisId, fallback) {
-const axis = this._axis(axisId);
-const requested = Number(axis && axis.tick_count);
-if (Number.isFinite(requested) && requested > 0) {
-return Math.max(1, Math.min(200, requested));
-}
-return fallback;
-}
-_dataPx(axisId, value) {
-const dim = this._axisDim(axisId);
-const axis = this._axis(axisId);
-const [lo, hi] = this._axisRange(axisId);
-const c0 = this._axisCoord(axis, lo);
-const c1 = this._axisCoord(axis, hi);
-const c = this._axisCoord(axis, value);
-if (![c0, c1, c].every(Number.isFinite) || c1 === c0) return NaN;
-if (dim === "x") return this.plot.x + ((c - c0) / (c1 - c0)) * this.plot.w;
-return this.plot.y + (1 - (c - c0) / (c1 - c0)) * this.plot.h;
-}
-_listen(target, type, handler, options) {
-target.addEventListener(type, handler, options);
-this._listeners.push({ target, type, handler, options });
-return handler;
-}
-_interactionFlag(name, fallback = false) {
-const value = this.interaction && this.interaction[name];
-return value === undefined ? fallback : value === true;
-}
-_eventView(source = "view") {
-return {
-ranges: Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId)]])
-),
-x0: this.view.x0,
-x1: this.view.x1,
-y0: this.view.y0,
-y1: this.view.y1,
-source,
-};
-}
-_dispatchChartEvent(name, detail) {
-if (!this.root || typeof CustomEvent !== "function") return;
-this.root.dispatchEvent(new CustomEvent(`xy:${name}`, {
-detail,
-bubbles: true,
-composed: true,
-}));
-}
-_emitViewChange(source = "view", opts = {}) {
-if (this._destroyed) return;
-const broadcast = opts.broadcast !== false;
-this._pendingViewEvent = {
-source,
-broadcast,
-axes: Array.isArray(opts.axes) ? [...opts.axes] : [],
-phase: opts.phase || "end",
-interaction_id: opts.interactionId ?? ++this._interactionSeq,
-};
-if (this._viewEventRaf) return;
-this._viewEventRaf = requestAnimationFrame(() => {
-this._viewEventRaf = null;
-const pending = this._pendingViewEvent || { source, broadcast };
-this._pendingViewEvent = null;
-const detail = {
-...this._eventView(pending.source),
-axes: pending.axes,
-phase: pending.phase,
-interaction_id: pending.interaction_id,
-};
-this._dispatchChartEvent("view_change", detail);
-if (this.comm && (pending.phase === "end"
-|| !this.comm.wantsViewChange || this.comm.wantsViewChange())) {
-this.comm.send({ type: "view_change", ...detail });
-}
-if (pending.broadcast) this._broadcastLinkedView(detail);
-});
-}
-_initLinkedCharts() {
-const group = this.interaction && this.interaction.link_group;
-if (!group || typeof BroadcastChannel !== "function") return;
-this._linkAxes = this._axisPolicy("link_axes");
-this._linkChannel = new BroadcastChannel(`xy:${group}`);
-this._linkChannel.onmessage = (event) => {
-const msg = event.data || {};
-if (msg.source === this._linkedSource) return;
-if (this._interactionFlag("link_select") && msg.selection) {
-const selection = msg.selection;
-if (selection.clear) {
-this._clearSelection({ broadcast: false, dispatch: false });
-} else if (selection.polygon) {
-this._stateSelection = { polygon: selection.polygon.map((point) => [...point]) };
-this._selectLocalPolygon(selection.polygon, { dispatch: false });
-} else if (selection.range) {
-const { x0, x1, y0, y1 } = selection.range;
-if ([x0, x1, y0, y1].every(Number.isFinite)) {
-this._stateSelection = { range: { x0, x1, y0, y1 } };
-this._selectLocal(x0, x1, y0, y1, { dispatch: false });
-}
-}
-return;
-}
-if (!msg.view || msg.source === this._linkedSource) return;
-const incoming = msg.view.ranges || {};
-const ranges = Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId)]])
-);
-for (const axisId of this._linkAxes) {
-const range = incoming[axisId]
-|| (axisId === "x" ? [msg.view.x0, msg.view.x1] : null)
-|| (axisId === "y" ? [msg.view.y0, msg.view.y1] : null);
-if (Array.isArray(range) && range.length === 2 && range.every(Number.isFinite)) {
-ranges[axisId] = [Number(range[0]), Number(range[1])];
-}
-}
-this._setView({ ranges }, {
-animate: false,
-source: "linked",
-phase: "end",
-broadcast: false,
-});
-};
-}
-_broadcastLinkedView(detail) {
-if (!this._linkChannel) return;
-const axes = (detail.axes || []).filter((axisId) => this._linkAxes.includes(axisId));
-if (!axes.length) return;
-const ranges = Object.fromEntries(axes.map((axisId) => [axisId, detail.ranges[axisId]]));
-this._linkChannel.postMessage({
-source: this._linkedSource,
-view: { ...detail, axes, ranges },
-});
-}
-_broadcastLinkedSelection(selection) {
-if (!this._linkChannel || !this._interactionFlag("link_select")) return;
-this._linkChannel.postMessage({ source: this._linkedSource, selection });
-}
-setView(ranges, opts = {}) {
-return this._setView({ ranges }, {
-animate: opts.animate === true,
-source: "programmatic",
-phase: "end",
-interactionId: ++this._interactionSeq,
-broadcast: opts.broadcast === true,
-});
-}
-resetView(opts = {}) {
-return this._resetView(opts.animate !== false, "reset");
-}
-_applyClass(el, className) {
-if (typeof className !== "string") return;
-for (const token of className.split(/\s+/).filter(Boolean)) {
-try { el.classList.add(token); } catch (_) {   }
-}
-}
-_stylePropertyName(key) {
-if (key.startsWith("--")) return key;
-return key.replace(/_/g, "-").replace(/[A-Z]/g, (match) => `-${match.toLowerCase()}`);
-}
-_stylePropertyValue(property, value) {
-if (typeof value !== "number") return String(value);
-if (!Number.isFinite(value)) return null;
-if (property.startsWith("--") || UNITLESS_STYLE_PROPS.has(property)) return String(value);
-return `${value}px`;
-}
-_applyStyle(el, style) {
-if (!style || typeof style !== "object" || Array.isArray(style)) return;
-for (const [key, value] of Object.entries(style)) {
-if (typeof key !== "string") continue;
-if (typeof value !== "string" && typeof value !== "number") continue;
-const property = this._stylePropertyName(key);
-const cssValue = this._stylePropertyValue(property, value);
-if (cssValue != null) el.style.setProperty(property, cssValue);
-}
-}
-_applySlot(el, slot) {
-if (el && el.dataset) el.dataset.xySlot = slot;
-const dom = this.spec.dom;
-if (!dom || typeof dom !== "object") return;
-if (slot === "root") this._applyClass(el, dom.class_name);
-if (dom.class_names && typeof dom.class_names === "object") {
-this._applyClass(el, dom.class_names[slot]);
-}
-if (slot === "root") this._applyStyle(el, dom.style);
-if (dom.styles && typeof dom.styles === "object") {
-this._applyStyle(el, dom.styles[slot]);
-}
-}
-_slotStyleValue(slot, property) {
-const styles = this.spec.dom?.styles;
-const style = styles && typeof styles === "object" ? styles[slot] : null;
-if (!style || typeof style !== "object" || Array.isArray(style)) return null;
-const want = this._stylePropertyName(property);
-for (const key of Object.keys(style)) {
-if (this._stylePropertyName(key) === want) return style[key];
-}
-return null;
-}
-_syncContainerSize() {
-if (this._destroyed || !(this.fluid || this.fluidH) || !this.root) return;
-this._queueResize(null, null, true);
-}
-_queueResize(cssW = null, cssH = null, measure = false) {
-if (this._destroyed) return;
-if (cssW || cssH) this._pendingResize = { cssW, cssH };
-if (measure) this._resizeNeedsMeasure = true;
-if (this._resizeRaf) return;
-this._resizeRaf = requestAnimationFrame(() => {
-this._resizeRaf = null;
-let pending = this._pendingResize;
-this._pendingResize = null;
-if (this._resizeNeedsMeasure && this.root) {
-const rect = this.root.getBoundingClientRect();
-if (rect.width || rect.height) pending = { cssW: rect.width, cssH: rect.height };
-}
-this._resizeNeedsMeasure = false;
-if (pending && (pending.cssW || pending.cssH)) {
-this._resize(pending.cssW, pending.cssH);
-}
-});
-}
-_armVisibilityResizeWatch() {
-if (!(this.fluid || this.fluidH)) return;
-const syncSoon = () => {
-if (this._destroyed) return;
-this._syncContainerSize();
-};
-this._listen(window, "resize", syncSoon);
-this._listen(window, "pageshow", syncSoon);
-this._listen(document, "visibilitychange", syncSoon);
-if (typeof IntersectionObserver !== "undefined") {
-this._io = new IntersectionObserver((entries) => {
-if (entries.some((entry) => entry.isIntersecting || entry.intersectionRatio > 0)) {
-syncSoon();
-}
-});
-this._io.observe(this.root);
-}
-}
-_markStateValue(state, property, fallback = null) {
-const styles = this.markStyle && typeof this.markStyle === "object" ? this.markStyle[state] : null;
-if (!styles || typeof styles !== "object" || Array.isArray(styles)) return fallback;
-if (Object.prototype.hasOwnProperty.call(styles, property)) return styles[property];
-return fallback;
-}
-_markStateNumber(state, property, fallback) {
-const value = this._markStateValue(state, property, fallback);
-if (typeof value !== "number" || !Number.isFinite(value)) return fallback;
-return value;
-}
-_markStatePaint(state, property, fallback) {
-const value = this._markStateValue(state, property, fallback);
-return typeof value === "string" ? value : fallback;
-}
-_armDprWatch() {
-if (typeof window.matchMedia !== "function") return;
-this._dprMq?.removeEventListener?.("change", this._onDprChange);
-const mq = window.matchMedia(`(resolution: ${window.devicePixelRatio}dppx)`);
-this._onDprChange = () => {
-if (this._destroyed) return;
-this._resize(this.size.w, this.size.h);
-this._armDprWatch();
-};
-mq.addEventListener?.("change", this._onDprChange, { once: true });
-this._dprMq = mq;
-}
-_initContextLossRecovery() {
-this._listen(this.canvas, "webglcontextlost", (e) => {
-e.preventDefault();
-if (this._destroyed) return;
-const governedRelease = this.canvas.dataset.xyCtx === "released";
-if (this._glLost && !governedRelease) return;
-this._glLost = true;
-this._ctxLostPending = false;
-if (!governedRelease) this.canvas.dataset.xyCtx = "lost";
-XY_CONTEXT_GOVERNOR._announceLive();
-this._contextLossCount += 1;
-this._contextRecoveryError = null;
-this.root.dataset.xyContextState = "lost";
-this.seq += 1;
-if (this._raf) cancelAnimationFrame(this._raf);
-this._raf = null;
-if (this._wheelZoomRaf) cancelAnimationFrame(this._wheelZoomRaf);
-this._wheelZoomRaf = null;
-this._pendingWheelZoom = null;
-clearTimeout(this._wheelZoomEndTimer);
-this._wheelZoomEndTimer = null;
-this._wheelGesture = null;
-if (this._dataAnimRaf) cancelAnimationFrame(this._dataAnimRaf);
-this._dataAnimRaf = null;
-if (this._dataAnim) {
-this._emitAnimationLifecycle?.("end", this._dataAnim.phase, { cancelled: true });
-}
-this._dataAnim = null;
-this._transitionOldTraces = null;
-this._transitionView = null;
-if (this.view0) this.view = { ...this.view0 };
-this._cancelViewAnimation();
-clearTimeout(this._viewTimer);
-this._viewTimer = null;
-clearTimeout(this._rebinTimer);
-this._rebinTimer = null;
-this._viewRequestBurstStart = null;
-this._dispatchChartEvent("context_lost", {
-loss_count: this._contextLossCount,
-});
-const documentVisible =
-typeof document === "undefined" ||
-!document.visibilityState ||
-document.visibilityState === "visible";
-if (!governedRelease && this._ctxVisible && documentVisible) {
-setTimeout(() => {
-if (
-!this._destroyed &&
-this._glLost &&
-this.canvas.dataset.xyCtx === "lost" &&
-this._ctxVisible
-) {
-this._recoverContext();
-}
-}, 0);
-}
-if (governedRelease && this._ctxRecoverRequested && !this._destroyed && this._ctxVisible) {
-this._ctxRecoverRequested = false;
-setTimeout(() => {
-if (!this._destroyed && this._glLost && this._ctxVisible) this._recoverContext();
-}, 0);
-}
-});
-this._listen(this.canvas, "webglcontextrestored", () => {
-if (this._destroyed || this._contextRecoveryError) return;
-this._lutCache.clear();
-this.pickFbo = null;
-this.pickTex = null;
-try {
-this._initGl(this._payload);
-this._glLost = false;
-this._drawNow();
-this._assertContextFrameReady("restore");
-} catch (err) {
-this._glLost = true;
-this.canvas.dataset.xyCtx = "lost";
-this.root.dataset.xyContextState = "lost";
-const transient =
-!this.gl ||
-this.gl.isContextLost() ||
-String(err && err.message || err).includes("shader compile: null") ||
-String(err && err.message || err).startsWith("WebGL error ");
-if (transient) {
-this._contextRecoveryError = null;
-this._scheduleContextRecovery();
-return;
-}
-this._contextRecoveryError = err;
-this.root.dataset.xyContextState = "failed";
-try { this._destroyGlResources(); } catch (_cleanupErr) {}
-this.gl = null;
-this._dispatchChartEvent("context_restore_failed", {
-loss_count: this._contextLossCount,
-message: err instanceof Error ? err.message : String(err),
-});
-this.root.textContent = "xy: WebGL2 context could not be restored.";
-return;
-}
-this._contextRestoreCount += 1;
-this._contextRecoveryError = null;
-this._ctxRecoveryDelay = 0;
-this.canvas.dataset.xyCtx = "live";
-this.root.dataset.xyContextState = "ready";
-XY_CONTEXT_GOVERNOR._announceLive();
-this._scheduleViewRequest(this.view, { delay: 0 });
-this._dropContextSnapshot();
-this._dispatchChartEvent("context_restored", {
-loss_count: this._contextLossCount,
-restore_count: this._contextRestoreCount,
-});
-});
-}
-_releaseContext() {
-if (this._destroyed || !this.gl || this._glLost || this.gl.isContextLost()) return false;
-const ext = this.gl.getExtension("WEBGL_lose_context");
-if (!ext) return false;
-this._snapshotBeforeRelease();
-this._ctxReleasedExt = ext;
-this._ctxReleases += 1;
-this._glLost = true;
-this._ctxLostPending = true;
-this.canvas.dataset.xyCtx = "released";
-if (this._raf) cancelAnimationFrame(this._raf);
-this._raf = null;
-ext.loseContext();
-XY_CONTEXT_GOVERNOR._announceLive();
-return true;
-}
-_snapshotBeforeRelease() {
-try {
-if (this._raf) cancelAnimationFrame(this._raf);
-this._raf = null;
-this._rafKeepPick = true;
-this._drawNow();
-let snap = this._ctxSnapshot;
-if (!snap) {
-snap = this._ctxSnapshot = document.createElement("canvas");
-snap.dataset.xyCtxSnapshot = "";
-}
-snap.width = this.canvas.width;
-snap.height = this.canvas.height;
-snap.style.cssText = this.canvas.style.cssText;
-snap.style.pointerEvents = "none";
-const gl = this.gl;
-const w = this.canvas.width;
-const h = this.canvas.height;
-gl.finish();
-const pixels = new Uint8Array(w * h * 4);
-gl.readPixels(0, 0, w, h, gl.RGBA, gl.UNSIGNED_BYTE, pixels);
-const ctx = snap.getContext("2d");
-const image = ctx.createImageData(w, h);
-const data = image.data;
-for (let srcY = 0; srcY < h; srcY++) {
-let src = srcY * w * 4;
-const srcEnd = src + w * 4;
-let dst = (h - 1 - srcY) * w * 4;
-for (; src < srcEnd; src += 4, dst += 4) {
-const alpha = pixels[src + 3];
-let red = pixels[src];
-let green = pixels[src + 1];
-let blue = pixels[src + 2];
-if (alpha > 0 && alpha < 255) {
-const scale = 255 / alpha;
-red = Math.min(255, Math.round(red * scale));
-green = Math.min(255, Math.round(green * scale));
-blue = Math.min(255, Math.round(blue * scale));
-}
-data[dst] = red;
-data[dst + 1] = green;
-data[dst + 2] = blue;
-data[dst + 3] = alpha;
-}
-}
-ctx.putImageData(image, 0, 0);
-this.canvas.before(snap);
-this.canvas.style.visibility = "hidden";
-} catch (_err) {
-this._dropContextSnapshot();
-}
-}
-_dropContextSnapshot() {
-this.canvas.style.visibility = "";
-if (this._ctxSnapshot) this._ctxSnapshot.remove();
-this._ctxSnapshot = null;
-}
-_recoverContext() {
-if (this._destroyed || !this._glLost) return;
-if (this._ctxReleasedExt && this._ctxLostPending) {
-this._ctxRecoverRequested = true;
-return;
-}
-this._ctxRecoveries += 1;
-if (this._ctxReleasedExt) {
-const ext = this._ctxReleasedExt;
-this._ctxReleasedExt = null;
-try {
-XY_CONTEXT_GOVERNOR.reserve(this);
-ext.restoreContext();
-return;
-} catch (_err) {
-XY_CONTEXT_GOVERNOR.cancel(this);
-}
-}
-this._rebuildEvictedContext();
-}
-_assertContextFrameReady(stage) {
-if (!this.gl) {
-throw new Error(`context lost during ${stage} draw`);
-}
-this.gl.finish();
-if (this.gl.isContextLost()) throw new Error(`context lost during ${stage} draw`);
-const error = this.gl.getError();
-if (error !== this.gl.NO_ERROR) {
-throw new Error(`WebGL error ${error} during ${stage} draw`);
-}
-}
-_scheduleContextRecovery() {
-if (this._ctxRecoveryTimer || this._destroyed || !this._ctxVisible) return;
-if (
-typeof document !== "undefined" &&
-document.visibilityState &&
-document.visibilityState !== "visible"
-) return;
-const delay = this._ctxRecoveryDelay || 50;
-this._ctxRecoveryDelay = Math.min(1000, delay * 2);
-this._ctxRecoveryTimer = setTimeout(() => {
-this._ctxRecoveryTimer = null;
-if (this._glLost && !this._destroyed && this._ctxVisible) this._recoverContext();
-}, delay);
-}
-_rebuildEvictedContext() {
-if (this.gl && !this.gl.isContextLost()) {
-try { this.gl.getExtension("WEBGL_lose_context")?.loseContext(); } catch (_err) {}
-}
-const fresh = this.canvas.cloneNode(false);
-for (const record of this._listeners) {
-if (record.target === this.canvas) {
-this.canvas.removeEventListener(record.type, record.handler, record.options);
-fresh.addEventListener(record.type, record.handler, record.options);
-record.target = fresh;
-}
-}
-this.canvas.replaceWith(fresh);
-this.canvas = fresh;
-this._glLost = false;
-this._lutCache.clear();
-this.pickFbo = null;
-this.pickTex = null;
-try {
-this._initGl(this._payload);
-this._glLost = false;
-this._drawNow();
-this._assertContextFrameReady("rebuild");
-} catch (_err) {
-this._glLost = true;
-this.canvas.dataset.xyCtx = "lost";
-this._scheduleContextRecovery();
-return;
-}
-this._ctxRecoveryDelay = 0;
-this.canvas.dataset.xyCtx = "live";
-XY_CONTEXT_GOVERNOR._announceLive();
-this._scheduleViewRequest(this.view, { delay: 0 });
-this._dropContextSnapshot();
-}
-_armContextVisibilityWatch() {
-this._listen(this.root, "pointerenter", () => {
-if (this._glLost && !this._destroyed) this._recoverContext();
-});
-if (typeof document !== "undefined") {
-this._listen(document, "visibilitychange", () => {
-if (document.visibilityState === "hidden") {
-XY_CONTEXT_GOVERNOR.scheduleHiddenReleases();
-return;
-}
-XY_CONTEXT_GOVERNOR.cancelHiddenReleases();
-if (
-document.visibilityState === "visible" &&
-this._ctxVisible &&
-this._glLost &&
-!this._destroyed
-) {
-this._recoverContext();
-}
-});
-}
-if (typeof IntersectionObserver === "undefined") {
-this._ctxVisible = true;
-return;
-}
-this._ctxIo = new IntersectionObserver(
-(entries) => {
-const entry = entries[entries.length - 1];
-this._ctxVisible = entry.isIntersecting || entry.intersectionRatio > 0;
-if (this._ctxVisible) {
-this._ctxSeenSeq = XY_CONTEXT_GOVERNOR.seq++;
-if (this._glLost && !this._destroyed) this._recoverContext();
-if (this._healStaleTheme()) this.draw();
-} else if (!this._destroyed) {
-XY_CONTEXT_GOVERNOR._rebalance();
-}
-},
-{ rootMargin: "25% 0px 25% 0px" },
-);
-this._ctxIo.observe(this.root);
-}
-_resize(cssW, cssH) {
-const w = this.fluid && cssW ? Math.max(120, Math.round(cssW)) : this.size.w;
-const h = this.fluidH && cssH ? Math.max(120, Math.round(cssH)) : this.size.h;
-const dpr = window.devicePixelRatio || 1;
-if (w === this.size.w && h === this.size.h && dpr === this.dpr) return;
-this.dpr = dpr;
-this.size.w = w;
-this.size.h = h;
-this._layout();
-const p = this.plot;
-this.root.style.setProperty("--xy-legend-max-width", Math.max(40, p.w - 12) + "px");
-this.root.style.setProperty("--xy-legend-max-height", Math.max(40, p.h - 12) + "px");
-this.canvas.style.left = p.x + "px";
-this.canvas.style.top = p.y + "px";
-this.canvas.style.width = p.w + "px";
-this.canvas.style.height = p.h + "px";
-this.canvas.width = p.w * this.dpr;
-this.canvas.height = p.h * this.dpr;
-this.chrome.style.width = this.size.w + "px";
-this.chrome.style.height = this.size.h + "px";
-this.chrome.width = this.size.w * this.dpr;
-this.chrome.height = this.size.h * this.dpr;
-this.overlay.style.width = this.size.w + "px";
-this.overlay.style.height = this.size.h + "px";
-this.overlay.width = this.size.w * this.dpr;
-this.overlay.height = this.size.h * this.dpr;
-for (const lg of this._legends || []) {
-this._positionLegend(lg, lg.dataset.xyLegendLoc || "upper right");
-}
-this._positionReductionBadges();
-this._positionColorbar();
-this._fitModebar();
-this._layoutAxisBands();
-this._pickDirty = true;
-if (this._raf) cancelAnimationFrame(this._raf);
-this._raf = null;
-this._drawNow();
-this._scheduleViewRequest();
-}
-_buildDom(el) {
-const s = this.spec;
-const root = document.createElement("div");
-root.className = "xy";
-root.style.cssText =
-`position:relative;width:${this.fluid ? "100%" : this.size.w + "px"};` +
-`height:${this.fluidH ? "100%" : this.size.h + "px"};` +
-`--xy-legend-max-width:${Math.max(40, this.plot.w - 12)}px;` +
-`--xy-legend-max-height:${Math.max(40, this.plot.h - 12)}px;` +
-(this.fluidH ? "min-height:120px;" : "") +
-"font:12px system-ui,sans-serif;user-select:none;";
-this._applySlot(root, "root");
-if (root.style.background || root.style.backgroundColor) root.dataset.xyOwnBg = "";
-el.appendChild(root);
-this.root = root;
-ensureChromeStylesheet(root);
-let a11yId;
-do {
-a11yId = `xy-a11y-${++XY_A11Y_ID}`;
-} while (
-document.getElementById(`${a11yId}-summary`) || document.getElementById(`${a11yId}-live`)
-);
-root.setAttribute("role", "region");
-root.setAttribute("aria-label", s.title ? `Chart: ${s.title}` : "Interactive chart");
-this.a11ySummary = document.createElement("div");
-this.a11ySummary.id = `${a11yId}-summary`;
-this.a11ySummary.style.cssText = XY_SR_ONLY_STYLE;
-root.setAttribute("aria-describedby", this.a11ySummary.id);
-root.appendChild(this.a11ySummary);
-this.a11yLive = document.createElement("div");
-this.a11yLive.id = `${a11yId}-live`;
-this.a11yLive.setAttribute("role", "status");
-this.a11yLive.setAttribute("aria-live", "polite");
-this.a11yLive.setAttribute("aria-atomic", "true");
-this.a11yLive.style.cssText = XY_SR_ONLY_STYLE;
-root.appendChild(this.a11yLive);
-if (s.title) {
-const t = document.createElement("div");
-t.textContent = s.title;
-t.style.cssText = "position:absolute;top:6px;left:0;right:0;";
-this._applySlot(t, "title");
-root.appendChild(t);
-}
-this.chrome = document.createElement("canvas");
-this.chrome.style.cssText = "position:absolute;inset:0;pointer-events:none;";
-this._applySlot(this.chrome, "chrome");
-root.appendChild(this.chrome);
-this.canvas = document.createElement("canvas");
-this.canvas.style.cssText =
-`position:absolute;left:${this.plot.x}px;top:${this.plot.y}px;` +
-`width:${this.plot.w}px;height:${this.plot.h}px;touch-action:none;`;
-this._applySlot(this.canvas, "canvas");
-this.canvas.tabIndex = 0;
-this.canvas.setAttribute("role", "img");
-this.canvas.setAttribute("aria-describedby", this.a11ySummary.id);
-root.appendChild(this.canvas);
-this.overlay = document.createElement("canvas");
-this.overlay.style.cssText = "position:absolute;inset:0;pointer-events:none;";
-root.appendChild(this.overlay);
-this.labels = document.createElement("div");
-this.labels.style.cssText = "position:absolute;inset:0;pointer-events:none;";
-this._applySlot(this.labels, "labels");
-root.appendChild(this.labels);
-this.tooltip = document.createElement("div");
-this.tooltip.style.cssText =
-"position:absolute;display:none;pointer-events:none;z-index:5;";
-this._applySlot(this.tooltip, "tooltip");
-this.tooltip.setAttribute("aria-hidden", "true");
-root.appendChild(this.tooltip);
-this._buildLegend(root);
-this._buildColorbar(root);
-this._buildReductionBadges(root);
-}
-_a11yAxisSummary(axisId, name) {
-const axis = this._axis(axisId);
-const label = axis.label ? `${name} axis (${axis.label})` : `${name} axis`;
-if (axis.kind === "category") {
-const categories = Array.isArray(axis.categories) ? axis.categories : [];
-if (!categories.length) return `${label} uses categories.`;
-const shown = categories.slice(0, 6).map((value) => String(value));
-const remaining = categories.length - shown.length;
-const suffix = remaining > 0 ? `, and ${remaining} more` : "";
-return `${label} has ${categories.length} categories: ${shown.join(", ")}${suffix}.`;
-}
-const range = axis.range || [];
-if (range.length < 2) return null;
-return `${label} ranges from ${fmtValue(range[0], axis.kind)} to ${fmtValue(range[1], axis.kind)}.`;
-}
-_a11ySummaryText() {
-const traces = Array.isArray(this.spec.traces) ? this.spec.traces : [];
-const parts = [this.spec.title ? `${this.spec.title}.` : "Interactive chart."];
-parts.push(`${traces.length} data series.`);
-const names = traces.map((trace) => trace && trace.name).filter(Boolean).slice(0, 6);
-if (names.length) parts.push(`Series: ${names.join(", ")}.`);
-const x = this._a11yAxisSummary("x", "X");
-const y = this._a11yAxisSummary("y", "Y");
-if (x) parts.push(x);
-if (y) parts.push(y);
-return parts.join(" ");
-}
-_initA11y() {
-if (!this.a11ySummary || !this.canvas) return;
-this.a11ySummary.textContent = this._a11ySummaryText();
-const instruction = this._pickable
-? " Use Arrow keys to explore data points in series data order; Home and End jump to the first and last point; Escape closes the readout."
-: "";
-this.canvas.setAttribute("aria-label", `Plot area.${instruction}`);
-}
-_compactInt(value) {
-const n = Number(value);
-if (!Number.isFinite(n)) return "0";
-return Math.round(n).toLocaleString();
-}
-_positionReductionBadges() {
-if (!this._badges) return;
-const rightInset = this.size.w - (this.plot.x + this.plot.w);
-const bottomInset = this.size.h - (this.plot.y + this.plot.h);
-this._badges.style.right = `${rightInset + 6}px`;
-this._badges.style.bottom = `${bottomInset + 6}px`;
-}
-_reductionBadgeItems() {
-const items = [];
-const traces = this.gpuTraces && this.gpuTraces.length
-? this.gpuTraces
-: (this.spec.traces || []);
-for (const entry of traces) {
-const t = entry.trace || entry;
-if (t.tier !== "density" || !t.density) continue;
-const sample = entry.sampleOverlay && entry.sampleOverlay.sample
-? entry.sampleOverlay.sample
-: t.density.sample;
-if (sample && Number(sample.n) > 0) {
-items.push(`sampled ${this._compactInt(sample.n)} of ${this._compactInt(sample.visible)}`);
-}
-if (entry._sampleRebinned) items.push("zoom re-binned from sample");
-if (t.density.channels_dropped) items.push("aggregated channels");
-}
-return items;
-}
-_refreshReductionBadges() {
-if (!this._badges) return;
-const items = this._reductionBadgeItems();
-this._badges.textContent = "";
-this._badges.hidden = items.length === 0;
-for (const item of items) {
-const badge = document.createElement("div");
-badge.textContent = item;
-this._applySlot(badge, "badge_item");
-this._badges.appendChild(badge);
-}
-this._positionReductionBadges();
-}
-_buildReductionBadges(root) {
-const items = this._reductionBadgeItems();
-const hasDensityTrace = (this.spec.traces || []).some((t) => t.tier === "density");
-if (!items.length && !hasDensityTrace) return;
-const box = document.createElement("div");
-box.style.cssText =
-"position:absolute;display:flex;flex-direction:column;align-items:flex-end;" +
-"pointer-events:none;z-index:4;";
-this._applySlot(box, "badge");
-root.appendChild(box);
-this._badges = box;
-this._refreshReductionBadges();
-}
-_buildLegend(root) {
-const s = this.spec;
-this._legends = [];
-const items = [];
-if (s.show_legend !== false) {
-for (const t of s.traces) {
-if (t.tier === "density") {
-items.push({ swatch: "gradient", cmap: t.density.colormap, name: t.name || "density" });
-} else if (t.color && t.color.mode === "categorical") {
-t.color.categories.forEach((cat, i) =>
-items.push({ swatch: t.color.palette[i], name: cat, symbol: t.kind === "scatter" ? (t.style?.symbol || "circle") : null, style: t.style || {} }));
-} else if (t.color && t.color.mode === "continuous") {
-items.push({ swatch: "gradient", cmap: t.color.colormap, name: t.name || "value" });
-} else if (t.name) {
-const c = (t.color && t.color.color) || (t.style && t.style.color);
-const line = ["line", "segments", "step", "stairs", "errorbar"].includes(t.kind);
-items.push({ swatch: c, name: t.name, symbol: t.kind === "scatter" ? (t.style?.symbol || "circle") : null, line, style: t.style || {} });
-}
-}
-if (items.length) this._legendBox(root, items, s.legend || {});
-}
-for (const extra of s.extra_legends || []) {
-const mapped = (extra.items || []).map((it) => ({
-swatch: it.style && it.style.color,
-name: it.name,
-symbol: it.kind === "scatter" ? (it.style?.symbol || "circle") : null,
-line: ["line", "segments", "step", "stairs", "errorbar"].includes(it.kind),
-style: it.style || {},
-}));
-if (mapped.length) this._legendBox(root, mapped, extra);
-}
-}
-_legendBox(root, items, options) {
-const lg = document.createElement("div");
-const loc = options.loc || "upper right";
-const ncols = Math.max(1, Number(options.ncols) || 1);
-const horizontal = ncols > 1;
-lg.style.cssText = "position:absolute;" +
-`display:grid;grid-template-columns:repeat(${horizontal ? ncols : 1},max-content);` +
-"overflow:auto;";
-lg.dataset.xyLegendLoc = loc;
-this._positionLegend(lg, loc);
-this._applySlot(lg, "legend");
-if (options.title) {
-const title = document.createElement("div");
-title.textContent = String(options.title);
-title.style.fontWeight = "600";
-title.style.gridColumn = `1 / span ${horizontal ? ncols : 1}`;
-lg.appendChild(title);
-}
-for (const it of items) {
-const row = document.createElement("div");
-this._applySlot(row, "legend_item");
-const sw = document.createElement("span");
-sw.style.display = "inline-block";
-sw.style.verticalAlign = "-1px";
-let bg = it.swatch;
-if (it.swatch === "gradient") {
-const stops = colormapStops(it.cmap);
-bg = `linear-gradient(90deg,${stops.map((c) => `rgb(${c[0]},${c[1]},${c[2]})`).join(",")})`;
-sw.style.background = bg;
-} else if (it.symbol) {
-const ns = "http://www.w3.org/2000/svg";
-const svg = document.createElementNS(ns, "svg");
-svg.setAttribute("viewBox", "0 0 18 14");
-svg.setAttribute("width", "18");
-svg.setAttribute("height", "14");
-const path = document.createElementNS(ns, "path");
-const paths = {
-square: "M4.5 2.5h9v9h-9z", diamond: "M9 2l5 5-5 5-5-5z",
-thin_diamond: "M9 2l3 5-3 5-3-5z",
-triangle: "M9 2l-5 10h10z", triangle_down: "M9 12L4 2h10z",
-triangle_left: "M4 7L14 2v10z", triangle_right: "M14 7L4 2v10z",
-plus_line: "M9 2v10M4 7h10", x_line: "M5 3l8 8M13 3l-8 8",
-cross: "M7.5 2h3v3.5H14v3h-3.5V12h-3V8.5H4v-3h3.5z",
-x: "M5.5 2L9 5.5 12.5 2 14 3.5 10.5 7 14 10.5 12.5 12 9 8.5 5.5 12 4 10.5 7.5 7 4 3.5z",
-pentagon: "M9 2.5L13.28 5.61 11.65 10.64H6.35L4.72 5.61z",
-hexagon: "M9 2L13.3 4.5v5L9 12l-4.3-2.5v-5z",
-star: "M9 2l1.5 3.1 3.5.5-2.5 2.5.6 3.5L9 10l-3.1 1.6.6-3.5L4 5.6l3.5-.5z"
-};
-const color = safeCssPaint(this.root, bg);
-if (it.symbol === "circle" || it.symbol === "point" || it.symbol === "pixel") {
-if (it.symbol === "pixel") path.setAttribute("d", "M8.5 6.5h1v1h-1z");
-else path.setAttribute("d", `M9 ${it.symbol === "point" ? 4.75 : 2.5}a${it.symbol === "point" ? 2.25 : 4.5} ${it.symbol === "point" ? 2.25 : 4.5} 0 1 0 0 ${it.symbol === "point" ? 4.5 : 9}a${it.symbol === "point" ? 2.25 : 4.5} ${it.symbol === "point" ? 2.25 : 4.5} 0 1 0 0 -${it.symbol === "point" ? 4.5 : 9}`);
-} else path.setAttribute("d", paths[it.symbol] || paths.square);
-path.setAttribute("fill", it.symbol.endsWith("_line") ? "none" : color);
-path.setAttribute("stroke", color);
-path.setAttribute("stroke-width", String(it.style?.stroke_width || 1));
-svg.appendChild(path);
-sw.appendChild(svg);
-sw.style.width = "18px";
-sw.style.height = "14px";
-} else if (it.line) {
-const ns = "http://www.w3.org/2000/svg";
-const svg = document.createElementNS(ns, "svg");
-svg.setAttribute("viewBox", "0 0 22 12");
-svg.setAttribute("width", "22");
-svg.setAttribute("height", "12");
-const ln = document.createElementNS(ns, "line");
-ln.setAttribute("x1", "1");
-ln.setAttribute("y1", "6");
-ln.setAttribute("x2", "21");
-ln.setAttribute("y2", "6");
-ln.setAttribute("stroke", safeCssPaint(this.root, bg));
-ln.setAttribute("stroke-width", String(it.style?.width ?? 1.5));
-if (it.style?.dash && it.style.dash.length) ln.setAttribute("stroke-dasharray", it.style.dash.join(" "));
-svg.appendChild(ln);
-sw.appendChild(svg);
-sw.style.width = "22px";
-sw.style.height = "12px";
-} else {
-sw.style.background = safeCssPaint(this.root, bg);
-}
-this._applySlot(sw, "legend_swatch");
-row.appendChild(sw);
-row.appendChild(document.createTextNode(it.name));
-lg.appendChild(row);
-}
-root.appendChild(lg);
-this._legends.push(lg);
-return lg;
-}
-_positionLegend(lg, loc) {
-if (!lg) return;
-const rightInset = this.size.w - (this.plot.x + this.plot.w);
-const h = loc.includes("left") ? "left" : loc.includes("right") ? "right" : "center";
-const v = loc.includes("upper") ? "upper" : loc.includes("lower") ? "lower" : "center";
-const left = h === "left" ? this.plot.x + 6 : h === "center" ? this.plot.x + this.plot.w / 2 : null;
-const right = h === "right" ? rightInset + 6 : null;
-const top = v === "upper" ? this.plot.y + 6 : v === "center" ? this.plot.y + this.plot.h / 2 : null;
-const bottom = v === "lower" ? this.size.h - (this.plot.y + this.plot.h) + 6 : null;
-lg.style.setProperty("--xy-legend-left", left == null ? "auto" : left + "px");
-lg.style.setProperty("--xy-legend-right", right == null ? "auto" : right + "px");
-lg.style.setProperty("--xy-legend-top", top == null ? "auto" : top + "px");
-lg.style.setProperty("--xy-legend-bottom", bottom == null ? "auto" : bottom + "px");
-const tx = h === "center" ? "-50%" : "0";
-const ty = v === "center" ? "-50%" : "0";
-lg.style.setProperty("--xy-legend-transform", `translate(${tx},${ty})`);
-}
-_buildColorbar(root) {
-const cb = this.spec.colorbar;
-if (!cb) return;
-const box = document.createElement("div");
-const horizontal = cb.orientation === "horizontal";
-box.style.cssText = "position:absolute;pointer-events:none;z-index:4;";
-this._applySlot(box, "colorbar");
-const bar = document.createElement("div");
-const levels = Math.max(0, Number(cb.levels) || 0);
-let gradient;
-if (levels > 0) {
-const lut = buildLutData(cb.colormap || "viridis");
-const bands = [];
-for (let index = 0; index < levels; index++) {
-const sample = Math.min(255, Math.round(255 * (index + 0.5) / levels));
-const color = `rgb(${lut[sample * 4]},${lut[sample * 4 + 1]},${lut[sample * 4 + 2]})`;
-bands.push(`${color} ${100 * index / levels}% ${100 * (index + 1) / levels}%`);
-}
-gradient = `linear-gradient(to ${horizontal ? "right" : "top"},${bands.join(",")})`;
-} else {
-const stops = colormapStops(cb.colormap || "viridis");
-gradient = `linear-gradient(to ${horizontal ? "right" : "top"},${stops.map((c) =>
-`rgb(${c[0]},${c[1]},${c[2]})`).join(",")})`;
-}
-bar.style.cssText = horizontal
-? `position:absolute;inset:0 0 auto 0;height:${COLORBAR_THICKNESS}px;`
-: `position:absolute;inset:0 auto 0 0;width:${COLORBAR_THICKNESS}px;`;
-bar.style.setProperty("--xy-colorbar-gradient", gradient);
-this._applySlot(bar, "colorbar_bar");
-box.appendChild(bar);
-const domain = cb.domain || [0, 1];
-const lo = Number(domain[0]), hi = Number(domain[1]);
-const span = hi - lo || 1;
-const tickResult = linearTicks(lo, hi, 8);
-const hasExplicitTicks = Array.isArray(cb.ticks);
-const tickValues = hasExplicitTicks ? cb.ticks : tickResult.ticks;
-const tickStep = tickResult.step;
-for (const raw of tickValues) {
-const value = Number(raw);
-if (!Number.isFinite(value) || value < Math.min(lo, hi) || value > Math.max(lo, hi)) continue;
-const tick = document.createElement("span");
-tick.textContent = hasExplicitTicks ? fmtGeneral(value) : fmtLinear(value, tickStep);
-const fraction = (value - lo) / span;
-tick.style.cssText = horizontal
-? `position:absolute;left:${100 * fraction}%;top:${COLORBAR_THICKNESS + 2}px;transform:translateX(-50%);white-space:nowrap;`
-: `position:absolute;left:${COLORBAR_THICKNESS + 5}px;top:${100 * (1 - fraction)}%;transform:translateY(-50%);white-space:nowrap;`;
-this._applySlot(tick, "colorbar_tick");
-box.appendChild(tick);
-}
-if (cb.label) {
-const label = document.createElement("span");
-label.textContent = String(cb.label);
-label.style.cssText = horizontal
-? `position:absolute;left:50%;top:${COLORBAR_THICKNESS + 18}px;transform:translateX(-50%);white-space:nowrap;`
-: `position:absolute;left:${COLORBAR_THICKNESS + 40}px;top:50%;writing-mode:vertical-rl;transform:translateY(-50%) rotate(180deg);white-space:nowrap;`;
-this._applySlot(label, "colorbar_title");
-box.appendChild(label);
-}
-box.title = `${cb.label ? cb.label + ": " : ""}${domain[0]} – ${domain[1]}`;
-root.appendChild(box);
-this._colorbar = box;
-this._colorbarHorizontal = horizontal;
-this._positionColorbar();
-}
-_positionColorbar() {
-if (!this._colorbar) return;
-const horizontal = this._colorbarHorizontal;
-const compactVertical = !horizontal && this._compactVerticalColorbar;
-const gap = compactVertical ? COMPACT_COLORBAR_GAP : COLORBAR_GAP;
-this._colorbar.style.left = (horizontal
-? this.plot.x
-: this.plot.x + this.plot.w + this._rightAxisRoom + gap) + "px";
-this._colorbar.style.top = (horizontal
-? this.plot.y + this.plot.h + (this._bottomAxisRoom || 8)
-: this.plot.y) + "px";
-this._colorbar.style.width = (horizontal
-? this.plot.w
-: compactVertical ? COLORBAR_THICKNESS : 66) + "px";
-this._colorbar.style.height = (horizontal ? 50 : Math.max(24, this.plot.h)) + "px";
-this._colorbar.dataset.xyCompact = compactVertical ? "true" : "false";
-for (const node of this._colorbar.querySelectorAll(
-'[data-xy-slot="colorbar_tick"], [data-xy-slot="colorbar_title"]'
-)) {
-node.hidden = compactVertical;
-}
-}
-_initGl(buffer) {
-const dpr = window.devicePixelRatio || 1;
-this.dpr = dpr;
-this.canvas.width = this.plot.w * dpr;
-this.canvas.height = this.plot.h * dpr;
-this.chrome.width = this.size.w * dpr;
-this.chrome.height = this.size.h * dpr;
-this.chrome.style.width = this.size.w + "px";
-this.chrome.style.height = this.size.h + "px";
-this.overlay.width = this.size.w * dpr;
-this.overlay.height = this.size.h * dpr;
-this.overlay.style.width = this.size.w + "px";
-this.overlay.style.height = this.size.h + "px";
-XY_CONTEXT_GOVERNOR.reserve(this);
-const gl = this.canvas.getContext("webgl2", {
-antialias: false, premultipliedAlpha: true, alpha: true,
-});
-if (!gl) {
-XY_CONTEXT_GOVERNOR.cancel(this);
-throw new Error("webgl2 unavailable");
-}
-this.gl = gl;
-XY_CONTEXT_GOVERNOR.acquired(this);
-gl.enable(gl.BLEND);
-gl.blendFunc(gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
-this._progCache = new Map();
-this._glPrograms = this._progCache;
-this.quad = gl.createBuffer();
-this.quad._fcId = ++this._bufSeq;
-gl.bindBuffer(gl.ARRAY_BUFFER, this.quad);
-gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([0, 0, 1, 0, 0, 1, 1, 1]), gl.STATIC_DRAW);
-this.quadVao = gl.createVertexArray();
-gl.bindVertexArray(this.quadVao);
-gl.enableVertexAttribArray(ATTR_SLOTS.a_corner);
-gl.vertexAttribPointer(ATTR_SLOTS.a_corner, 2, gl.FLOAT, false, 0, 0);
-gl.vertexAttribDivisor(ATTR_SLOTS.a_corner, 0);
-gl.bindVertexArray(null);
-this.gpuTraces = this.spec.traces.map((t) => this._buildTrace(buffer, t));
-this._updatePickable();
-}
-_updatePickable() {
-this._pickable = this.gpuTraces.some(
-(t) => markOf(t.trace.kind).pointPick && (t.tier !== "density" || t.drill));
-if (this._pickable && !this.pickFbo) this._initPickTarget();
-this._syncModebarSelect?.();
-}
-_prog(key, vs, fs) {
-let p = this._progCache.get(key);
-if (!p) {
-p = makeProgram(this.gl, vs, fs);
-this._progCache.set(key, p);
-}
-return p;
-}
-get pointProg() { return this._prog("point", POINT_VS, POINT_FS); }
-get pointSimpleProg() { return this._prog("point-simple", POINT_SIMPLE_VS, POINT_SIMPLE_FS); }
-get lineProg() { return this._prog("line", LINE_VS, LINE_FS); }
-get segmentProg() { return this._prog("segment", SEGMENT_VS, SEGMENT_FS); }
-get meshProg() { return this._prog("mesh", MESH_VS, MESH_FS); }
-get areaProg() { return this._prog("area", AREA_VS, AREA_FS); }
-get rectProg() { return this._prog("rect", RECT_VS, RECT_FS); }
-get barProg() { return this._prog("bar", BAR_VS, RECT_FS); }
-get pickProg() { return this._prog("pick", PICK_VS, PICK_FS); }
-get densityProg() { return this._prog("density", GRID_VS, DENSITY_FS); }
-get heatmapProg() { return this._prog("heatmap", GRID_VS, HEATMAP_FS); }
-_lut(name) {
-if (this._lutCache.has(name)) return this._lutCache.get(name);
-const gl = this.gl;
-const tex = gl.createTexture();
-gl.bindTexture(gl.TEXTURE_2D, tex);
-gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 256, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, buildLutData(name));
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-this._lutCache.set(name, tex);
-return tex;
-}
-_paletteLut(palette) {
-const key = "pal:" + palette.join(",");
-if (this._lutCache.has(key)) return this._lutCache.get(key);
-const gl = this.gl;
-const data = new Uint8Array(256 * 4);
-for (let i = 0; i < 256; i++) {
-const c = hexColor(palette[i % palette.length]);
-data[i * 4] = c[0] * 255;
-data[i * 4 + 1] = c[1] * 255;
-data[i * 4 + 2] = c[2] * 255;
-data[i * 4 + 3] = 255;
-}
-const tex = gl.createTexture();
-gl.bindTexture(gl.TEXTURE_2D, tex);
-gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 256, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, data);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-this._lutCache.set(key, tex);
-return tex;
-}
-_buildTrace(buffer, t) {
-const gl = this.gl;
-const g = {
-trace: t,
-tier: t.tier,
-color: [0.3, 0.47, 0.66, 1],
-xAxis: typeof t.x_axis === "string" ? t.x_axis : "x",
-yAxis: typeof t.y_axis === "string" ? t.y_axis : "y",
-};
-if (t.tier === "density") {
-const d = t.density;
-const meta = this.spec.columns[d.buf];
-const raw = this._columnView(buffer, meta);
-const grid = d.enc === "log-u8" ? lodDecodeLogU8(raw, d.max) : raw;
-g.densityNormMax = d.max;
-g.density = {
-w: d.w, h: d.h, max: d.max, normMax: d.max, colormap: d.colormap,
-color: d.color ? parseColor(this.root, d.color, [0.3, 0.47, 0.66, 1]) : null,
-xRange: d.x_range, yRange: d.y_range,
-grid: lodCopyGrid(grid),
-tex: this._uploadGrid(grid, d.w, d.h, d.max),
-lut: this._lut(d.colormap),
-};
-g.sampleOverlay = this._buildDensitySample(t, d.sample, buffer);
-g._shownDensity = g.density;
-lodRememberDensity(this, g, g.density);
-return g;
-}
-markOf(t.kind).build(this, g, t, buffer);
-if (t.keys && Number.isInteger(t.keys.lo) && Number.isInteger(t.keys.hi)) {
-const lo = this._columnView(buffer, this.spec.columns[t.keys.lo]);
-const hi = this._columnView(buffer, this.spec.columns[t.keys.hi]);
-const count = Math.min(g.n || 0, lo.length, hi.length);
-g._transitionKeys = new Array(count);
-g._transitionKeyIndex = new Map();
-for (let i = 0; i < count; i++) {
-const key = `${hi[i]}:${lo[i]}`;
-if (g._transitionKeyIndex.has(key)) throw new Error("xy: duplicate binary animation key");
-g._transitionKeys[i] = key;
-g._transitionKeyIndex.set(key, i);
-}
-}
-return g;
-}
-_buildXY(g, t, buffer) {
-const x = this._columnView(buffer, this.spec.columns[t.x]);
-const y = this._columnView(buffer, this.spec.columns[t.y]);
-g.xMeta = { ...this.spec.columns[t.x] };
-g.yMeta = { ...this.spec.columns[t.y] };
-g.n = Math.min(x.length, y.length);
-g._cpu = { x, y, xMeta: g.xMeta, yMeta: g.yMeta };
-g.xBuf = this._upload(x);
-g.yBuf = this._upload(y);
-}
-_buildInstanceStyleChannels(g, t, buffer, widthName) {
-const channel = (name) => t.channels && t.channels[name];
-const artistScalar = Number(t.style && t.style.artist_alpha);
-const hasStyle = channel("opacity") || channel("artist_alpha") ||
-channel(widthName) || channel("symbol") || Number.isFinite(artistScalar);
-if (hasStyle) {
-const values = new Float32Array(g.n * 4);
-for (let i = 0; i < g.n; i++) {
-values[i * 4] = 1;
-values[i * 4 + 1] = Number.isFinite(artistScalar) ? artistScalar : -1;
-values[i * 4 + 2] = -1;
-values[i * 4 + 3] = -1;
-}
-const copy = (name, component, scale = 1) => {
-const spec = channel(name);
-if (!spec) return;
-const source = this._columnView(buffer, this.spec.columns[spec.buf]);
-for (let i = 0; i < g.n; i++) values[i * 4 + component] = source[i * (spec.components || 1)] * scale;
-};
-copy("opacity", 0);
-copy("artist_alpha", 1);
-copy(widthName, 2, this.dpr);
-copy("symbol", 3);
-g.styleBuf = this._upload(values);
-}
-const radius = channel("corner_radius");
-if (radius) {
-const source = this._columnView(buffer, this.spec.columns[radius.buf]);
-const components = radius.components || 1;
-const values = new Float32Array(g.n * 2);
-for (let i = 0; i < g.n; i++) {
-values[i * 2] = source[i * components] * this.dpr;
-values[i * 2 + 1] = (components > 1 ? source[i * components + 1] : source[i * components]) * this.dpr;
-}
-g.radiusBuf = this._upload(values);
-}
-if (t.stroke && t.stroke.mode === "direct_rgba") {
-g.strokeBuf = this._upload(this._columnView(buffer, this.spec.columns[t.stroke.buf]));
-}
-}
-_buildScatterMark(g, t, buffer) {
-this._buildXY(g, t, buffer);
-g.colorMode = 0;
-g.color = parseColor(this.root, t.color && t.color.color, [0.3, 0.47, 0.66, 1]);
-if (t.color && t.color.mode === "continuous") {
-g.colorMode = 1;
-g._cpu.color = this._columnView(buffer, this.spec.columns[t.color.buf]);
-g.cBuf = this._upload(g._cpu.color);
-g.lut = this._lut(t.color.colormap);
-} else if (t.color && t.color.mode === "categorical") {
-g.colorMode = 2;
-g._cpu.color = this._columnView(buffer, this.spec.columns[t.color.buf]);
-g.cBuf = this._upload(g._cpu.color);
-g.lut = this._paletteLut(t.color.palette);
-} else if (t.color && t.color.mode === "direct_rgba") {
-g.colorMode = 3;
-g._cpu.rgba = this._columnView(buffer, this.spec.columns[t.color.buf]);
-g.rgbaBuf = this._upload(g._cpu.rgba);
-}
-g.sizeMode = 0;
-g.size = (t.size && t.size.size) || 4.0;
-g.sizeRange = [2, 18];
-if (t.size && t.size.mode === "continuous") {
-g.sizeMode = 1;
-g._cpu.size = this._columnView(buffer, this.spec.columns[t.size.buf]);
-g.sBuf = this._upload(g._cpu.size);
-g.sizeRange = t.size.range_px;
-}
-this._buildInstanceStyleChannels(g, t, buffer, "stroke_width");
-this._pointMarkStyle(g, t);
-}
-_pointMarkStyle(g, t) {
-const s = t.style || {};
-g.symbol = { circle: 0, square: 1, diamond: 2, triangle: 3, cross: 4, hexagon: 5, pentagon: 6, star: 7, triangle_down: 8, triangle_left: 9, triangle_right: 10, x: 11, point: 12, pixel: 13, thin_diamond: 14, plus_line: 15, x_line: 16 }[s.symbol] || 0;
-g.pointStrokeWidth = Number(s.stroke_width) || 0;
-g.pointStrokeFace = !s.stroke && (!t.stroke || t.stroke.mode === "match_fill");
-g.pointStroke = s.stroke
-? parseColor(this.root, s.stroke, [g.color[0], g.color[1], g.color[2], 1])
-: null;
-}
-_sampleTraceSpec(parentTrace, sample) {
-return {
-id: parentTrace.id,
-kind: "scatter",
-name: parentTrace.name,
-style: sample.style || parentTrace.style || {},
-tier: "sampled",
-x: sample.x && sample.x.col,
-y: sample.y && sample.y.col,
-x_axis: parentTrace.x_axis,
-y_axis: parentTrace.y_axis,
-color: sample.color,
-size: sample.size,
-stroke: sample.stroke,
-channels: sample.channels,
-};
-}
-_buildDensitySample(parentTrace, sample, buffer) {
-if (!sample || !sample.x || !sample.y || sample.x.col === undefined || sample.y.col === undefined) {
-return null;
-}
-const trace = this._sampleTraceSpec(parentTrace, sample);
-const g = {
-trace,
-tier: "sampled",
-xAxis: typeof parentTrace.x_axis === "string" ? parentTrace.x_axis : "x",
-yAxis: typeof parentTrace.y_axis === "string" ? parentTrace.y_axis : "y",
-};
-this._buildScatterMark(g, trace, buffer);
-g.win = {
-x0: sample.x_range[0], x1: sample.x_range[1],
-y0: sample.y_range[0], y1: sample.y_range[1],
-};
-g.sample = { n: sample.n, visible: sample.visible };
-return g;
-}
-_destroyDensitySample(g) {
-const s = g && g.sampleOverlay;
-if (!s || !this.gl) return;
-for (const b of [s.xBuf, s.yBuf, s.cBuf, s.rgbaBuf, s.sBuf, s.styleBuf,
-s.strokeBuf, s.selBuf, s.dBuf]) {
-if (b) this.gl.deleteBuffer(b);
-}
-g.sampleOverlay = null;
-}
-_applyDensitySample(g, sample, buffers) {
-this._destroyDensitySample(g);
-if (!sample || !sample.x || !sample.y || sample.x.buf === undefined || sample.y.buf === undefined) {
-this._refreshReductionBadges();
-return;
-}
-const gl = this.gl;
-const trace = {
-id: g.trace.id,
-kind: "scatter",
-name: g.trace.name,
-style: sample.style || g.trace.style || {},
-tier: "sampled",
-x_axis: g.trace.x_axis,
-y_axis: g.trace.y_axis,
-color: sample.color,
-size: sample.size,
-stroke: sample.stroke,
-channels: sample.channels,
-};
-const s = {
-trace,
-tier: "sampled",
-xAxis: g.xAxis,
-yAxis: g.yAxis,
-xBuf: gl.createBuffer(),
-yBuf: gl.createBuffer(),
-xMeta: { offset: sample.x.offset, scale: sample.x.scale },
-yMeta: { offset: sample.y.offset, scale: sample.y.scale },
-n: Math.min(sample.x.len, sample.y.len),
-win: {
-x0: sample.x_range[0], x1: sample.x_range[1],
-y0: sample.y_range[0], y1: sample.y_range[1],
-},
-sample: { n: sample.n, visible: sample.visible },
-selActive: false,
-colorMode: 0,
-color: parseColor(this.root, sample.color && sample.color.color, [0.3, 0.47, 0.66, 1]),
-sizeMode: 0,
-size: (sample.size && sample.size.size) || 4.0,
-sizeRange: [2, 18],
-};
-gl.bindBuffer(gl.ARRAY_BUFFER, s.xBuf);
-gl.bufferData(gl.ARRAY_BUFFER, this._asF32(buffers[sample.x.buf]), gl.STATIC_DRAW);
-gl.bindBuffer(gl.ARRAY_BUFFER, s.yBuf);
-gl.bufferData(gl.ARRAY_BUFFER, this._asF32(buffers[sample.y.buf]), gl.STATIC_DRAW);
-if (sample.color && sample.color.buf !== undefined) {
-s.colorMode = sample.color.mode === "continuous" ? 1 :
-(sample.color.mode === "categorical" ? 2 : 3);
-const colorValues = sample.color.dtype === "u8"
-? this._asU8(buffers[sample.color.buf])
-: this._asF32(buffers[sample.color.buf]);
-const colorBufferName = s.colorMode === 3 ? "rgbaBuf" : "cBuf";
-s[colorBufferName] = gl.createBuffer();
-s[colorBufferName]._fcType = colorValues instanceof Uint8Array ? gl.UNSIGNED_BYTE : gl.FLOAT;
-gl.bindBuffer(gl.ARRAY_BUFFER, s[colorBufferName]);
-gl.bufferData(gl.ARRAY_BUFFER, colorValues, gl.STATIC_DRAW);
-if (s.colorMode !== 3) {
-s.lut = sample.color.mode === "continuous"
-? this._lut(sample.color.colormap)
-: this._paletteLut(sample.color.palette);
-}
-}
-if (sample.size && sample.size.mode === "continuous") {
-s.sizeMode = 1;
-s.sBuf = gl.createBuffer();
-gl.bindBuffer(gl.ARRAY_BUFFER, s.sBuf);
-gl.bufferData(gl.ARRAY_BUFFER, this._asF32(buffers[sample.size.buf]), gl.STATIC_DRAW);
-s.sizeRange = sample.size.range_px;
-}
-const channel = (name) => sample.channels && sample.channels[name];
-const artistScalar = Number(trace.style && trace.style.artist_alpha);
-if (channel("opacity") || channel("artist_alpha") || channel("stroke_width") ||
-channel("symbol") || Number.isFinite(artistScalar)) {
-const values = new Float32Array(s.n * 4);
-for (let i = 0; i < s.n; i++) {
-values[i * 4] = 1;
-values[i * 4 + 1] = Number.isFinite(artistScalar) ? artistScalar : -1;
-values[i * 4 + 2] = -1;
-values[i * 4 + 3] = -1;
-}
-const copy = (name, component, scale = 1) => {
-const spec = channel(name);
-if (!spec) return;
-const source = spec.dtype === "u8"
-? this._asU8(buffers[spec.buf])
-: this._asF32(buffers[spec.buf]);
-const components = spec.components || 1;
-for (let i = 0; i < s.n; i++) values[i * 4 + component] = source[i * components] * scale;
-};
-copy("opacity", 0);
-copy("artist_alpha", 1);
-copy("stroke_width", 2, this.dpr);
-copy("symbol", 3);
-s.styleBuf = this._upload(values);
-}
-if (sample.stroke && sample.stroke.mode === "direct_rgba") {
-s.strokeBuf = this._upload(this._asU8(buffers[sample.stroke.buf]));
-}
-this._pointMarkStyle(s, trace);
-g.sampleOverlay = s;
-this._refreshReductionBadges();
-}
-_drawDensitySample(g, x0, x1, y0, y1, opacityScale = 1) {
-const s = g && g.sampleOverlay;
-if (!s || !s.n || !this._viewOverlaps(s.win)) return;
-this._drawPoints(
-s,
-this._map(s.xMeta, x0, x1, s.xAxis),
-this._map(s.yMeta, y0, y1, s.yAxis),
-opacityScale
-);
-}
-_resolveMarkFill(style, markColor) {
-const fill = style && style.fill;
-if (!fill || !Array.isArray(fill.stops) || fill.stops.length < 2) return null;
-const mode = fill.space === "plot" ? 2 : 1;
-const dir = { down: 0, up: 1, left: 2, right: 3 }[fill.dir] ?? 0;
-const count = Math.min(fill.stops.length, 8);
-const pos = new Float32Array(8);
-const colors = new Float32Array(32);
-for (let i = 0; i < count; i++) {
-const stop = fill.stops[i] || [];
-pos[i] = Math.min(Math.max(Number(stop[0]) || 0, 0), 1);
-const expr = String(stop[1] || "").trim();
-const c = expr.toLowerCase() === "currentcolor"
-? markColor
-: parseColor(this.root, expr, markColor);
-colors[i * 4] = c[0] * c[3];
-colors[i * 4 + 1] = c[1] * c[3];
-colors[i * 4 + 2] = c[2] * c[3];
-colors[i * 4 + 3] = c[3];
-}
-return { mode, dir, count, pos, colors };
-}
-_setGradientUniforms(prog, grad) {
-const gl = this.gl;
-const u = (n) => uniformOf(gl, prog, n);
-if (!grad) {
-gl.uniform1i(u("u_gradMode"), 0);
-return;
-}
-gl.uniform1i(u("u_gradMode"), grad.mode);
-gl.uniform1i(u("u_gradDir"), grad.dir);
-gl.uniform1i(u("u_gradCount"), grad.count);
-gl.uniform1fv(u("u_gradPos"), grad.pos);
-gl.uniform4fv(u("u_gradColor"), grad.colors);
-}
-_fillOpacity(style, fallback = 1) {
-return Number(style.opacity ?? fallback) * Number(style.fill_opacity ?? 1);
-}
-_strokeOpacity(style, fallback = 1) {
-return Number(style.opacity ?? fallback) * Number(style.stroke_opacity ?? 1);
-}
-_setRectStyleUniforms(prog, g) {
-const gl = this.gl;
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_res"), this.canvas.width, this.canvas.height);
-const cr = g.cornerRadius || [0, 0];
-gl.uniform2f(u("u_radius"), cr[0] * this.dpr, cr[1] * this.dpr);
-gl.uniform1f(u("u_strokeWidth"), (g.strokeWidth || 0) * this.dpr);
-const sc = g.strokeColor || [0, 0, 0, 0];
-gl.uniform4f(u("u_stroke"), sc[0], sc[1], sc[2], sc[3]);
-gl.uniform1i(u("u_strokeMode"), g.strokeBuf ? 1 : 0);
-gl.uniform1f(u("u_strokeOpacity"), this._strokeOpacity(g.trace.style || {}));
-this._setGradientUniforms(prog, g.grad);
-}
-_rectMarkStyleGpu(g, t) {
-const s = t.style || {};
-const cr = s.corner_radius;
-g.cornerRadius = Array.isArray(cr)
-? [Number(cr[0]) || 0, Number(cr[1]) || 0]
-: [Number(cr) || 0, Number(cr) || 0];
-g.strokeWidth = Number(s.stroke_width) || 0;
-const opaque = [g.color[0], g.color[1], g.color[2], 1];
-g.strokeColor = s.stroke ? parseColor(this.root, s.stroke, opaque) : opaque;
-g.grad = this._resolveMarkFill(s, g.color);
-}
-_smoothArrays(t, x, y, base, n) {
-if (!t.style || t.style.curve !== "smooth") return null;
-return xySmoothResample(x, y, base || null, n, 32768);
-}
-_stepArrays(t, x, y, n) {
-const where = t.style && t.style.step;
-if (!where || n < 2) return null;
-const perGap = where === "mid" ? 3 : 2;
-const m = 1 + (n - 1) * perGap;
-const sx = new Float32Array(m);
-const sy = new Float32Array(m);
-sx[0] = x[0];
-sy[0] = y[0];
-let j = 1;
-for (let i = 1; i < n; i++) {
-if (where === "pre") {
-sx[j] = x[i - 1]; sy[j] = y[i]; j++;
-sx[j] = x[i]; sy[j] = y[i]; j++;
-} else if (where === "mid") {
-const mid = (x[i - 1] + x[i]) * 0.5;
-sx[j] = mid; sy[j] = y[i - 1]; j++;
-sx[j] = mid; sy[j] = y[i]; j++;
-sx[j] = x[i]; sy[j] = y[i]; j++;
-} else {
-sx[j] = x[i]; sy[j] = y[i - 1]; j++;
-sx[j] = x[i]; sy[j] = y[i]; j++;
-}
-}
-return { x: sx, y: sy, n: m };
-}
-_buildLineMark(g, t, buffer) {
-const x = this._columnView(buffer, this.spec.columns[t.x]);
-const y = this._columnView(buffer, this.spec.columns[t.y]);
-g.xMeta = { ...this.spec.columns[t.x] };
-g.yMeta = { ...this.spec.columns[t.y] };
-g.n = Math.min(x.length, y.length);
-g._cpu = { x, y, xMeta: g.xMeta, yMeta: g.yMeta };
-const sm = this._smoothArrays(t, x, y, null, g.n);
-const src = sm || { x, y, n: g.n };
-const st = this._stepArrays(t, src.x, src.y, src.n);
-const drawX = st ? st.x : src.x;
-const drawY = st ? st.y : src.y;
-g.xBuf = this._upload(drawX);
-g.yBuf = this._upload(drawY);
-g.n = st ? st.n : src.n;
-g._dashX = drawX;
-g._dashY = drawY;
-g.color = parseColor(this.root, t.style && t.style.color, [0.3, 0.47, 0.66, 1]);
-}
-_buildSegmentMark(g, t, buffer) {
-const x0 = this._columnView(buffer, this.spec.columns[t.x0]);
-const x1 = this._columnView(buffer, this.spec.columns[t.x1]);
-const y0 = this._columnView(buffer, this.spec.columns[t.y0]);
-const y1 = this._columnView(buffer, this.spec.columns[t.y1]);
-g.x0Meta = { ...this.spec.columns[t.x0] };
-g.x1Meta = { ...this.spec.columns[t.x1] };
-g.y0Meta = { ...this.spec.columns[t.y0] };
-g.y1Meta = { ...this.spec.columns[t.y1] };
-g.n = Math.min(x0.length, x1.length, y0.length, y1.length);
-g.x0Buf = this._upload(x0);
-g.x1Buf = this._upload(x1);
-g.y0Buf = this._upload(y0);
-g.y1Buf = this._upload(y1);
-g._segmentCpu = { x0, x1, y0, y1 };
-g.color = parseColor(this.root, t.style && t.style.color, [0.3, 0.47, 0.66, 1]);
-g.colorMode = 0;
-if (t.color && t.color.mode === "continuous") {
-g.colorMode = 1;
-g.cBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-g.lut = this._lut(t.color.colormap);
-} else if (t.color && t.color.mode === "categorical") {
-g.colorMode = 2;
-g.cBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-g.lut = this._paletteLut(t.color.palette);
-} else if (t.color && t.color.mode === "direct_rgba") {
-g.colorMode = 3;
-g.rgbaBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-}
-this._buildInstanceStyleChannels(g, t, buffer, "width");
-g._cpu = { x: x0, y: y1, xMeta: g.x0Meta, yMeta: g.y1Meta };
-}
-_buildMeshMark(g, t, buffer) {
-for (const name of ["x0", "x1", "x2", "y0", "y1", "y2"]) {
-const values = this._columnView(buffer, this.spec.columns[t[name]]);
-g[name + "Meta"] = { ...this.spec.columns[t[name]] };
-g[name + "Buf"] = this._upload(values);
-g.n = g.n === undefined ? values.length : Math.min(g.n, values.length);
-}
-g.color = parseColor(this.root, t.color && t.color.color, [0.3, 0.47, 0.66, 1]);
-g.colorMode = 0;
-if (t.color && t.color.mode === "continuous") {
-g.colorMode = 1;
-g.cBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-g.lut = this._lut(t.color.colormap);
-} else if (t.color && t.color.mode === "categorical") {
-g.colorMode = 2;
-g.cBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-g.lut = this._paletteLut(t.color.palette);
-} else if (t.color && t.color.mode === "direct_rgba") {
-g.colorMode = 3;
-g.rgbaBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-}
-this._buildInstanceStyleChannels(g, t, buffer, "stroke_width");
-const style = t.style || {};
-g.meshStrokeWidth = Number(style.stroke_width) || 0;
-g.meshStroke = parseColor(this.root, style.stroke || "transparent", [0, 0, 0, 0]);
-}
-_buildHexbinMark(g, t, buffer) {
-const cx = this._columnView(buffer, this.spec.columns[t.x]);
-const cy = this._columnView(buffer, this.spec.columns[t.y]);
-const xMeta = { ...this.spec.columns[t.x] };
-const yMeta = { ...this.spec.columns[t.y] };
-const n = Math.min(cx.length, cy.length);
-const style = t.style || {};
-const dx = (Number(style.hex_dx) || 0) * (xMeta.scale || 1);
-const dy = (Number(style.hex_dy) || 0) * (yMeta.scale || 1);
-const ringX = [0, dx / 2, dx / 2, 0, -dx / 2, -dx / 2, 0];
-const ringY = [-dy / 3, -dy / 6, dy / 6, dy / 3, dy / 6, -dy / 6, -dy / 3];
-const parts = {};
-for (const name of ["x0", "x1", "x2", "y0", "y1", "y2"]) parts[name] = new Float32Array(n * 6);
-for (let i = 0; i < n; i++) {
-const px = cx[i], py = cy[i];
-for (let k = 0; k < 6; k++) {
-const j = i * 6 + k;
-parts.x0[j] = px;
-parts.y0[j] = py;
-parts.x1[j] = px + ringX[k];
-parts.y1[j] = py + ringY[k];
-parts.x2[j] = px + ringX[k + 1];
-parts.y2[j] = py + ringY[k + 1];
-}
-}
-for (const name of ["x0", "x1", "x2"]) {
-g[name + "Meta"] = { ...xMeta };
-g[name + "Buf"] = this._upload(parts[name]);
-}
-for (const name of ["y0", "y1", "y2"]) {
-g[name + "Meta"] = { ...yMeta };
-g[name + "Buf"] = this._upload(parts[name]);
-}
-g.n = n * 6;
-g.color = parseColor(this.root, t.color && t.color.color, [0.3, 0.47, 0.66, 1]);
-g.colorMode = 0;
-if (t.color && (t.color.mode === "continuous" || t.color.mode === "categorical")) {
-g.colorMode = t.color.mode === "continuous" ? 1 : 2;
-const cval = this._columnView(buffer, this.spec.columns[t.color.buf]);
-const expanded = new Float32Array(n * 6);
-for (let i = 0; i < n; i++) expanded.fill(cval[i], i * 6, i * 6 + 6);
-g.cBuf = this._upload(expanded);
-g.lut = t.color.mode === "continuous" ? this._lut(t.color.colormap) : this._paletteLut(t.color.palette);
-}
-g.meshStrokeWidth = Number(style.stroke_width) || 0;
-g.meshStroke = parseColor(this.root, style.stroke || "transparent", [0, 0, 0, 0]);
-}
-_buildAreaMark(g, t, buffer) {
-const x = this._columnView(buffer, this.spec.columns[t.x]);
-const y = this._columnView(buffer, this.spec.columns[t.y]);
-const base = this._columnView(buffer, this.spec.columns[t.base]);
-g.xMeta = { ...this.spec.columns[t.x] };
-g.yMeta = { ...this.spec.columns[t.y] };
-g.baseMeta = { ...this.spec.columns[t.base] };
-g.n = Math.min(x.length, y.length, base.length);
-g._cpu = { x, y, base, xMeta: g.xMeta, yMeta: g.yMeta };
-const sm = this._smoothArrays(t, x, y, base, g.n);
-g.xBuf = this._upload(sm ? sm.x : x);
-g.yBuf = this._upload(sm ? sm.y : y);
-g.baseBuf = this._upload(sm ? sm.extra : base);
-if (sm) g.n = sm.n;
-g._dashX = sm ? sm.x : x;
-g._dashY = sm ? sm.y : y;
-g.color = parseColor(this.root, t.style && t.style.color, [0.3, 0.47, 0.66, 1]);
-g.lineColor = parseColor(this.root, t.style && (t.style.line_color || t.style.color), g.color);
-g.grad = this._resolveMarkFill(t.style, g.color);
-}
-_buildRectMark(g, t, buffer) {
-const x0 = this._columnView(buffer, this.spec.columns[t.x0]);
-const x1 = this._columnView(buffer, this.spec.columns[t.x1]);
-const y0 = this._columnView(buffer, this.spec.columns[t.y0]);
-const y1 = this._columnView(buffer, this.spec.columns[t.y1]);
-g.x0Meta = { ...this.spec.columns[t.x0] };
-g.x1Meta = { ...this.spec.columns[t.x1] };
-g.y0Meta = { ...this.spec.columns[t.y0] };
-g.y1Meta = { ...this.spec.columns[t.y1] };
-g.n = Math.min(x0.length, x1.length, y0.length, y1.length);
-g._cpuRect = {
-x0, x1, y0, y1,
-x0Meta: g.x0Meta, x1Meta: g.x1Meta, y0Meta: g.y0Meta, y1Meta: g.y1Meta,
-};
-g.x0Buf = this._upload(x0);
-g.x1Buf = this._upload(x1);
-g.y0Buf = this._upload(y0);
-g.y1Buf = this._upload(y1);
-g.color = parseColor(this.root, t.style && t.style.color, [0.3, 0.47, 0.66, 1]);
-g.colorMode = 0;
-if (t.color && t.color.mode === "continuous") {
-g.colorMode = 1;
-g.cBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-g.lut = this._lut(t.color.colormap);
-} else if (t.color && t.color.mode === "categorical") {
-g.colorMode = 2;
-g.cBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-g.lut = this._paletteLut(t.color.palette);
-} else if (t.color && t.color.mode === "direct_rgba") {
-g.colorMode = 3;
-g.rgbaBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-}
-this._buildInstanceStyleChannels(g, t, buffer, "stroke_width");
-this._rectMarkStyleGpu(g, t);
-}
-_buildBarMark(g, t, buffer) {
-const b = t.bar;
-if (!b) return this._buildRectMark(g, t, buffer);
-const pos = this._columnView(buffer, this.spec.columns[b.pos]);
-const v1 = this._columnView(buffer, this.spec.columns[b.value1]);
-g.posMeta = { ...this.spec.columns[b.pos] };
-g.value1Meta = { ...this.spec.columns[b.value1] };
-g.n = Math.min(pos.length, v1.length);
-g.posBuf = this._upload(pos);
-g.value1Buf = this._upload(v1);
-g.orientation = b.orientation === "horizontal" ? 1 : 0;
-g.value0Const = b.value0_const ?? 0;
-g.value0Mode = b.value0 === undefined ? 0 : 1;
-g.width = b.width;
-if (g.value0Mode === 1) {
-const v0 = this._columnView(buffer, this.spec.columns[b.value0]);
-g.value0Meta = { ...this.spec.columns[b.value0] };
-g.n = Math.min(g.n, v0.length);
-g._cpuValue0 = v0;
-g.value0Buf = this._upload(v0);
-}
-g._cpuBar = {
-pos,
-value1: v1,
-value0: g._cpuValue0 || null,
-posMeta: g.posMeta,
-value1Meta: g.value1Meta,
-value0Meta: g.value0Meta || null,
-value0Const: g.value0Const,
-width: g.width,
-};
-g._cpu = g.orientation === 1
-? { x: v1, y: pos, xMeta: g.value1Meta, yMeta: g.posMeta, value0: g._cpuValue0 }
-: { x: pos, y: v1, xMeta: g.posMeta, yMeta: g.value1Meta, value0: g._cpuValue0 };
-g.color = parseColor(this.root, t.style && t.style.color, [0.3, 0.47, 0.66, 1]);
-g.colorMode = 0;
-if (t.color && t.color.mode === "continuous") {
-g.colorMode = 1;
-g.cBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-g.lut = this._lut(t.color.colormap);
-} else if (t.color && t.color.mode === "categorical") {
-g.colorMode = 2;
-g.cBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-g.lut = this._paletteLut(t.color.palette);
-} else if (t.color && t.color.mode === "direct_rgba") {
-g.colorMode = 3;
-g.rgbaBuf = this._upload(this._columnView(buffer, this.spec.columns[t.color.buf]));
-}
-this._buildInstanceStyleChannels(g, t, buffer, "stroke_width");
-this._rectMarkStyleGpu(g, t);
-}
-_buildHeatmapMark(g, t, buffer) {
-const h = t.heatmap;
-const truecolor = Array.isArray(h.rgba_bufs);
-const grid = truecolor
-? h.rgba_bufs.map((index) => this._columnView(buffer, this.spec.columns[index]))
-: this._columnView(buffer, this.spec.columns[h.buf]);
-g.heatmap = {
-w: h.w,
-h: h.h,
-xRange: h.x_range,
-yRange: h.y_range,
-colormap: h.colormap,
-truecolor,
-tex: truecolor ? this._uploadRgbaGrid(grid, h.w, h.h) : this._uploadHeatmapGrid(grid, h.w, h.h),
-lut: truecolor ? null : this._lut(h.colormap),
-};
-if (!truecolor) g._cpuHeatmap = { grid };
-}
-_uploadRgbaGrid(channels, w, h) {
-const gl = this.gl;
-const tex = gl.createTexture();
-const data = new Uint8Array(w * h * 4);
-for (let index = 0; index < w * h; index++) {
-for (let channel = 0; channel < 4; channel++) {
-data[index * 4 + channel] = Math.round(255 * Math.max(0, Math.min(1, channels[channel][index])));
-}
-}
-gl.bindTexture(gl.TEXTURE_2D, tex);
-gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, w, h, 0, gl.RGBA, gl.UNSIGNED_BYTE, data);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-return tex;
-}
-_uploadGrid(f32, w, h, maxVal) {
-const gl = this.gl;
-const tex = gl.createTexture();
-lodWriteGridTexture(gl, tex, f32, w, h, maxVal);
-return tex;
-}
-_uploadHeatmapGrid(f32, w, h) {
-const gl = this.gl;
-const tex = gl.createTexture();
-const data = new Uint8Array(f32.length);
-for (let i = 0; i < f32.length; i++) {
-const v = f32[i];
-if (Number.isFinite(v)) {
-data[i] = Math.max(1, Math.min(255, Math.round(1 + 254 * Math.max(0, Math.min(1, v)))));
-}
-}
-gl.bindTexture(gl.TEXTURE_2D, tex);
-const align = gl.getParameter(gl.UNPACK_ALIGNMENT);
-gl.pixelStorei(gl.UNPACK_ALIGNMENT, 1);
-gl.texImage2D(gl.TEXTURE_2D, 0, gl.R8, w, h, 0, gl.RED, gl.UNSIGNED_BYTE, data);
-gl.pixelStorei(gl.UNPACK_ALIGNMENT, align);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-return tex;
-}
-_columnView(buffer, meta) {
-const split = Array.isArray(buffer);
-if (split !== Number.isInteger(meta.buf)) {
-throw new Error(
-split
-? "xy: transport delivered a buffer list but the spec column has no wire-buffer index"
-: "xy: spec column carries a wire-buffer index but the transport delivered one blob",
-);
-}
-const span = xyByteSpan(split ? buffer[meta.buf] : buffer, "chart payload");
-const relativeOffset = Number(meta.byte_offset);
-const length = Number(meta.len);
-if (!Number.isSafeInteger(relativeOffset) || relativeOffset < 0 ||
-!Number.isSafeInteger(length) || length < 0) {
-throw new RangeError("column offset/length must be non-negative safe integers");
-}
-const bytesPerElement = meta.dtype === "u8" ? 1 : 4;
-const absoluteOffset = span.byteOffset + relativeOffset;
-const end = relativeOffset + length * bytesPerElement;
-if (end > span.byteLength) throw new RangeError("column extends past chart payload");
-if (absoluteOffset % bytesPerElement !== 0) throw new RangeError("column is misaligned");
-if (meta.dtype === "u8") return new Uint8Array(span.buffer, absoluteOffset, length);
-if (meta.dtype === "u32") return new Uint32Array(span.buffer, absoluteOffset, length);
-return new Float32Array(span.buffer, absoluteOffset, length);
-}
-_upload(view) {
-const gl = this.gl;
-const buf = gl.createBuffer();
-buf._fcId = ++this._bufSeq;
-buf._fcType = view instanceof Uint8Array ? gl.UNSIGNED_BYTE : gl.FLOAT;
-gl.bindBuffer(gl.ARRAY_BUFFER, buf);
-gl.bufferData(gl.ARRAY_BUFFER, view, gl.STATIC_DRAW);
-return buf;
-}
-_bindVao(g, key, parts, setup) {
-const gl = this.gl;
-if (!g._vaos) g._vaos = new Map();
-const sig = parts.join("|");
-let entry = g._vaos.get(key);
-if (!entry || entry.sig !== sig) {
-if (entry) gl.deleteVertexArray(entry.vao);
-const vao = gl.createVertexArray();
-gl.bindVertexArray(vao);
-setup();
-entry = { vao, sig };
-g._vaos.set(key, entry);
-} else {
-gl.bindVertexArray(entry.vao);
-}
-}
-_deleteVaos(g) {
-if (!g || !g._vaos) return;
-const gl = this.gl;
-if (gl) for (const { vao } of g._vaos.values()) gl.deleteVertexArray(vao);
-g._vaos = null;
-}
-_vaoAttr(slot, buf, byteOffset, divisor, size = 1, normalized = false) {
-const gl = this.gl;
-gl.bindBuffer(gl.ARRAY_BUFFER, buf);
-gl.enableVertexAttribArray(slot);
-gl.vertexAttribPointer(slot, size, buf._fcType || gl.FLOAT, normalized, 0, byteOffset);
-gl.vertexAttribDivisor(slot, divisor);
-}
-_initPickTarget() {
-const gl = this.gl;
-this.pickTex = gl.createTexture();
-this._allocPickTex();
-this.pickFbo = gl.createFramebuffer();
-gl.bindFramebuffer(gl.FRAMEBUFFER, this.pickFbo);
-gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, this.pickTex, 0);
-gl.bindFramebuffer(gl.FRAMEBUFFER, null);
-this._pickDirty = true;
-}
-_allocPickTex() {
-const gl = this.gl;
-gl.bindTexture(gl.TEXTURE_2D, this.pickTex);
-gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, this.canvas.width, this.canvas.height, 0,
-gl.RGBA, gl.UNSIGNED_BYTE, null);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
-gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
-this._pickW = this.canvas.width;
-this._pickH = this.canvas.height;
-}
-_map(meta, lo, hi, axisId = null) {
-if (!axisId) {
-const mul = 2 / ((hi - lo) * meta.scale);
-const add = ((meta.offset - lo) / (hi - lo)) * 2 - 1;
-return [mul, add];
-}
-const axis = this._axis(axisId);
-const c0 = this._axisCoord(axis, lo);
-const c1 = this._axisCoord(axis, hi);
-if (![c0, c1].every(Number.isFinite) || c1 === c0) return [0, -2];
-const mul = 2 / (c1 - c0);
-const add = -1 - c0 * mul;
-return [mul, add];
-}
-_mapConst(value, lo, hi, axisId = null) {
-if (!axisId) return ((value - lo) / (hi - lo)) * 2 - 1;
-const axis = this._axis(axisId);
-const c = this._axisCoord(axis, value);
-const c0 = this._axisCoord(axis, lo);
-const c1 = this._axisCoord(axis, hi);
-if (![c, c0, c1].every(Number.isFinite) || c1 === c0) return -2;
-return ((c - c0) / (c1 - c0)) * 2 - 1;
-}
-_edgePadForValue(value, lo, hi, pixels) {
-if (!Number.isFinite(value) || !Number.isFinite(lo) || !Number.isFinite(hi) || hi === lo) return 0;
-const span = Math.abs(hi - lo);
-const eps = span * 1e-10 + 1e-12;
-const px = Math.max(1, pixels || 1);
-const padPx = Math.max(2, Math.ceil(this.dpr || 1));
-if (Math.abs(value - lo) <= eps) return -(2 * padPx) / px;
-if (Math.abs(value - hi) <= eps) return (2 * padPx) / px;
-return 0;
-}
-_setAxisUniforms(prog, prefix, meta, axisId) {
-const gl = this.gl;
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u(`${prefix}meta`), meta && Number.isFinite(meta.offset) ? meta.offset : 0, meta && meta.scale ? meta.scale : 1);
-gl.uniform1i(u(`${prefix}mode`), this._axisMode(axisId));
-}
-draw(keepPick = false) {
-if (this._destroyed || this._glLost || !this.gl) return;
-this._updateZoomMenuLabel?.();
-if (this._raf) {
-this._rafKeepPick = this._rafKeepPick && keepPick;
-return;
-}
-this._rafKeepPick = keepPick;
-this._raf = requestAnimationFrame(() => {
-this._raf = null;
-if (this._destroyed) return;
-this._drawNow();
-});
-}
-_drawNow() {
-if (this._destroyed || !this.gl || this._glLost) return;
-this._healStaleTheme();
-const gl = this.gl;
-const { x0, x1, y0, y1 } = this.view;
-gl.bindFramebuffer(gl.FRAMEBUFFER, null);
-gl.viewport(0, 0, this.canvas.width, this.canvas.height);
-gl.clearColor(0, 0, 0, 0);
-gl.clear(gl.COLOR_BUFFER_BIT);
-const drawTrace = (g) => {
-if (g.tier === "density") {
-const [gx0, gx1] = this._axisRange(g.xAxis);
-const [gy0, gy1] = this._axisRange(g.yAxis);
-lodDrawDensityTier(this, g, gx0, gx1, gy0, gy1);
-return;
-}
-markOf(g.trace.kind).draw(this, g, x0, x1, y0, y1);
-};
-for (const g of this._transitionOldTraces || []) drawTrace(g);
-for (const g of this.gpuTraces) {
-drawTrace(g);
-}
-this._drawHoverState();
-this._repositionTooltip();
-if (!this._rafKeepPick) this._pickDirty = true;
-this._rafKeepPick = false;
-this._drawChrome();
-this._renderLassoSelection?.();
-}
-_now() {
-return performance.now();
-}
-_canDrawSimplePoints(g) {
-return g.colorMode === 0 && g.sizeMode === 0 && !g.selActive &&
-!g.rgbaBuf && !g.styleBuf && !g.strokeBuf &&
-(g.symbol || 0) === 0 && (g.pointStrokeWidth || 0) <= 0 &&
-Math.max(g.lodBlendShown ?? 0, g.lodBlend ?? 0) <= 0.001;
-}
-_drawPoints(g, xm, ym, opacityScale = 1) {
-opacityScale *= g._transitionOpacity ?? 1;
-const animationScale = g._transitionScale ?? 1;
-if (this._canDrawSimplePoints(g)) {
-this._drawSimplePoints(g, xm, ym, opacityScale);
-return;
-}
-const gl = this.gl;
-const prog = this.pointProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_xmap"), xm[0], xm[1]);
-gl.uniform2f(u("u_ymap"), ym[0], ym[1]);
-this._setAxisUniforms(prog, "u_x", g.xMeta, g.xAxis);
-this._setAxisUniforms(prog, "u_y", g.yMeta, g.yAxis);
-gl.uniform1f(u("u_dpr"), this.dpr);
-const transitionOn = !!(g._transitionPrevXBuf && g._transitionPrevYBuf);
-gl.uniform1i(u("u_transitionActive"), transitionOn ? 1 : 0);
-gl.uniform1f(u("u_transitionProgress"), g._transitionPositionProgress ?? 1);
-gl.uniform1f(u("u_size"), g.size * animationScale);
-gl.uniform1i(u("u_sizeMode"), g.sizeMode);
-gl.uniform2f(u("u_sizeRange"), g.sizeRange[0] * animationScale, g.sizeRange[1] * animationScale);
-gl.uniform1i(u("u_colorMode"), g.colorMode);
-const markOpacity = this._fillOpacity(g.trace.style, 0.8) * opacityScale;
-gl.uniform1f(u("u_opacity"), markOpacity);
-gl.uniform1f(u("u_selectedOpacity"), this._markStateNumber("selected", "opacity", 1));
-gl.uniform1f(u("u_unselectedOpacity"), this._markStateNumber("unselected", "opacity", 0.12));
-const stateColor = (loc, expr) => {
-const c = expr ? parseColor(this.root, expr, [0, 0, 0, 1]) : null;
-gl.uniform4f(loc, c ? c[0] : 0, c ? c[1] : 0, c ? c[2] : 0, c ? 1 : 0);
-};
-stateColor(u("u_selColor"), this._markStateValue("selected", "color"));
-stateColor(u("u_unselColor"), this._markStateValue("unselected", "color"));
-const [r, gg, b, a] = g.color;
-gl.uniform4f(u("u_color"), r, gg, b, a);
-gl.uniform1i(u("u_symbol"), g.symbol || 0);
-const sc = g.pointStroke;
-gl.uniform1f(u("u_ptStrokeWidth"), (g.pointStrokeWidth || 0) * this.dpr);
-gl.uniform1i(u("u_ptStrokeFace"), g.pointStrokeFace ? 1 : 0);
-gl.uniform1i(u("u_strokeMode"), g.strokeBuf ? 1 : 0);
-gl.uniform1f(u("u_strokeOpacity"), this._strokeOpacity(g.trace.style, 0.8) * opacityScale);
-gl.uniform4f(u("u_ptStroke"), sc ? sc[0] : 0, sc ? sc[1] : 0,
-sc ? sc[2] : 0, sc ? sc[3] : 0);
-gl.uniform1i(u("u_selActive"), g.selActive ? 1 : 0);
-const colorOn = g.colorMode !== 0 && g.cBuf;
-const sizeOn = g.sizeMode === 1 && g.sBuf;
-const selOn = g.selActive && g.selBuf;
-const rgbaOn = g.colorMode === 3 && g.rgbaBuf;
-const styleOn = !!g.styleBuf;
-const strokeOn = !!g.strokeBuf;
-if (g.lut) {
-gl.activeTexture(gl.TEXTURE0);
-gl.bindTexture(gl.TEXTURE_2D, g.lut);
-gl.uniform1i(u("u_lut"), 0);
-}
-const blendTarget = g.lodBlend ?? 0;
-let blend = g.lodBlendShown ?? blendTarget;
-if (Math.abs(blend - blendTarget) > 0.005 && !this._prefersReducedMotion()) {
-const now = this._now();
-const dt = g._blendTick ? Math.min(100, now - g._blendTick) : 16;
-g._blendTick = now;
-blend += (blendTarget - blend) * (1 - Math.exp(-dt / 90));
-g.lodBlendShown = blend;
-this.draw();
-} else {
-g.lodBlendShown = blend = blendTarget;
-g._blendTick = 0;
-}
-gl.uniform1f(u("u_dblend"), blend);
-const blendOn = blend > 0.001 && g.dBuf && g.dlut;
-if (blendOn) {
-gl.activeTexture(gl.TEXTURE1);
-gl.bindTexture(gl.TEXTURE_2D, g.dlut);
-}
-gl.uniform1i(u("u_dlut"), 1);
-this._bindVao(
-g,
-"points",
-[
-g.xBuf._fcId, g.yBuf._fcId,
-colorOn ? g.cBuf._fcId : 0,
-sizeOn ? g.sBuf._fcId : 0,
-selOn ? g.selBuf._fcId : 0,
-blendOn ? g.dBuf._fcId : 0,
-transitionOn ? g._transitionPrevXBuf._fcId : 0,
-transitionOn ? g._transitionPrevYBuf._fcId : 0,
-rgbaOn ? g.rgbaBuf._fcId : 0,
-styleOn ? g.styleBuf._fcId : 0,
-strokeOn ? g.strokeBuf._fcId : 0,
-],
-() => {
-this._vaoAttr(ATTR_SLOTS.ax, g.xBuf, 0, 0);
-this._vaoAttr(ATTR_SLOTS.ay, g.yBuf, 0, 0);
-if (colorOn) this._vaoAttr(ATTR_SLOTS.a_cval, g.cBuf, 0, 0);
-if (sizeOn) this._vaoAttr(ATTR_SLOTS.a_sval, g.sBuf, 0, 0);
-if (selOn) this._vaoAttr(ATTR_SLOTS.a_sel, g.selBuf, 0, 0);
-if (blendOn) this._vaoAttr(ATTR_SLOTS.a_dval, g.dBuf, 0, 0);
-if (transitionOn) {
-this._vaoAttr(ATTR_SLOTS.a_prevx, g._transitionPrevXBuf, 0, 0);
-this._vaoAttr(ATTR_SLOTS.a_prevy, g._transitionPrevYBuf, 0, 0);
-}
-if (rgbaOn) this._vaoAttr(ATTR_SLOTS.a_rgba, g.rgbaBuf, 0, 0, 4, true);
-if (styleOn) this._vaoAttr(ATTR_SLOTS.a_style, g.styleBuf, 0, 0, 4);
-if (strokeOn) this._vaoAttr(ATTR_SLOTS.a_stroke, g.strokeBuf, 0, 0, 4, true);
-}
-);
-if (!colorOn) gl.vertexAttrib1f(ATTR_SLOTS.a_cval, 0);
-if (!sizeOn) gl.vertexAttrib1f(ATTR_SLOTS.a_sval, 0.5);
-if (!selOn) gl.vertexAttrib1f(ATTR_SLOTS.a_sel, 1.0);
-if (!blendOn) gl.vertexAttrib1f(ATTR_SLOTS.a_dval, 0);
-if (!rgbaOn) gl.vertexAttrib4f(ATTR_SLOTS.a_rgba, r, gg, b, a);
-if (!styleOn) gl.vertexAttrib4f(ATTR_SLOTS.a_style, 1, -1, -1, -1);
-if (!strokeOn) gl.vertexAttrib4f(ATTR_SLOTS.a_stroke, r, gg, b, a);
-gl.drawArrays(gl.POINTS, 0, g.n);
-}
-_drawSimplePoints(g, xm, ym, opacityScale = 1) {
-const gl = this.gl;
-const prog = this.pointSimpleProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_xmap"), xm[0], xm[1]);
-gl.uniform2f(u("u_ymap"), ym[0], ym[1]);
-this._setAxisUniforms(prog, "u_x", g.xMeta, g.xAxis);
-this._setAxisUniforms(prog, "u_y", g.yMeta, g.yAxis);
-gl.uniform1f(u("u_dpr"), this.dpr);
-const transitionOn = !!(g._transitionPrevXBuf && g._transitionPrevYBuf);
-gl.uniform1i(u("u_transitionActive"), transitionOn ? 1 : 0);
-gl.uniform1f(u("u_transitionProgress"), g._transitionPositionProgress ?? 1);
-gl.uniform1f(u("u_size"), g.size * (g._transitionScale ?? 1));
-const [r, gg, b, a] = g.color;
-gl.uniform4f(
-u("u_color"), r, gg, b, a * this._fillOpacity(g.trace.style, 0.8) * opacityScale
-);
-this._bindVao(
-g,
-"points-simple",
-[g.xBuf._fcId, g.yBuf._fcId,
-transitionOn ? g._transitionPrevXBuf._fcId : 0,
-transitionOn ? g._transitionPrevYBuf._fcId : 0],
-() => {
-this._vaoAttr(ATTR_SLOTS.ax, g.xBuf, 0, 0);
-this._vaoAttr(ATTR_SLOTS.ay, g.yBuf, 0, 0);
-if (transitionOn) {
-this._vaoAttr(ATTR_SLOTS.a_prevx, g._transitionPrevXBuf, 0, 0);
-this._vaoAttr(ATTR_SLOTS.a_prevy, g._transitionPrevYBuf, 0, 0);
-}
-}
-);
-gl.drawArrays(gl.POINTS, 0, g.n);
-}
-_drawHoverState() {
-const hit = this._hoverTarget;
-if (!hit || !hit.g) return;
-const g = hit.g;
-if (g.trace.kind !== "scatter" || g.tier === "density") return;
-if (!Number.isInteger(hit.index) || hit.index < 0 || hit.index >= g.n) return;
-const [x0, x1] = this._axisRange(g.xAxis);
-const [y0, y1] = this._axisRange(g.yAxis);
-this._drawHoverPoint(
-g,
-hit.index,
-this._map(g.xMeta, x0, x1, g.xAxis),
-this._map(g.yMeta, y0, y1, g.yAxis)
-);
-}
-_drawHoverPoint(g, index, xm, ym) {
-const gl = this.gl;
-const prog = this.pointProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_xmap"), xm[0], xm[1]);
-gl.uniform2f(u("u_ymap"), ym[0], ym[1]);
-this._setAxisUniforms(prog, "u_x", g.xMeta, g.xAxis);
-this._setAxisUniforms(prog, "u_y", g.yMeta, g.yAxis);
-const defaultSize = Math.max((g.size || 4) * 1.75, (g.size || 4) + 5);
-const size = Math.max(0, this._markStateNumber("hover", "size", defaultSize));
-const opacity = Math.max(0, Math.min(1, this._markStateNumber("hover", "opacity", 0.95)));
-const color = parseColor(
-this.root,
-this._markStatePaint("hover", "color", "rgba(15,23,42,.92)"),
-[0.06, 0.09, 0.16, 0.92]
-);
-gl.uniform1f(u("u_dpr"), this.dpr);
-gl.uniform1f(u("u_size"), size);
-gl.uniform1i(u("u_sizeMode"), 0);
-gl.uniform2f(u("u_sizeRange"), size, size);
-gl.uniform1i(u("u_colorMode"), 0);
-gl.uniform1f(u("u_opacity"), opacity);
-gl.uniform1f(u("u_selectedOpacity"), 1);
-gl.uniform1f(u("u_unselectedOpacity"), 1);
-gl.uniform4f(u("u_color"), color[0], color[1], color[2], 1);
-gl.uniform1i(u("u_selActive"), 0);
-gl.uniform1f(u("u_dblend"), 0);
-this._bindVao(g, "hover", [g.xBuf._fcId, g.yBuf._fcId], () => {
-this._vaoAttr(ATTR_SLOTS.ax, g.xBuf, 0, 0);
-this._vaoAttr(ATTR_SLOTS.ay, g.yBuf, 0, 0);
-});
-gl.vertexAttrib1f(ATTR_SLOTS.a_cval, 0);
-gl.vertexAttrib1f(ATTR_SLOTS.a_sval, 0.5);
-gl.vertexAttrib1f(ATTR_SLOTS.a_sel, 1);
-gl.vertexAttrib1f(ATTR_SLOTS.a_dval, 0);
-gl.drawArrays(gl.POINTS, index, 1);
-}
-_drawDensity(g, density, opacityScale = 1) {
-const gl = this.gl;
-const d = density || g.density;
-if (!d || !d.tex || !gl.isTexture(d.tex)) return;
-opacityScale *= g._transitionOpacity ?? 1;
-const prog = this.densityProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-const { x0, x1, y0, y1 } = this.view;
-const [vx0, vx1] = this._axisRange(g.xAxis);
-const [vy0, vy1] = this._axisRange(g.yAxis);
-gl.uniform4f(u("u_view"), vx0 ?? x0, vx1 ?? x1, vy0 ?? y0, vy1 ?? y1);
-gl.uniform1i(u("u_xmode"), this._axisMode(g.xAxis));
-gl.uniform1i(u("u_ymode"), this._axisMode(g.yAxis));
-gl.uniform4f(u("u_gridRange"), d.xRange[0], d.xRange[1], d.yRange[0], d.yRange[1]);
-gl.uniform1f(u("u_opacity"), this._fillOpacity(g.trace.style) * opacityScale);
-const constant = d.color;
-gl.uniform1i(u("u_constantColor"), constant ? 1 : 0);
-gl.uniform4f(u("u_color"), ...(constant || [1, 1, 1, 1]));
-gl.activeTexture(gl.TEXTURE0);
-gl.bindTexture(gl.TEXTURE_2D, d.tex);
-gl.uniform1i(u("u_grid"), 0);
-gl.activeTexture(gl.TEXTURE1);
-gl.bindTexture(gl.TEXTURE_2D, d.lut);
-gl.uniform1i(u("u_lut"), 1);
-gl.bindVertexArray(this.quadVao);
-gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
-}
-_drawHeatmap(g) {
-const h = g.heatmap;
-if (!h) return;
-const gl = this.gl;
-const prog = this.heatmapProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-const { x0, x1, y0, y1 } = this.view;
-const [vx0, vx1] = this._axisRange(g.xAxis);
-const [vy0, vy1] = this._axisRange(g.yAxis);
-gl.uniform4f(u("u_view"), vx0 ?? x0, vx1 ?? x1, vy0 ?? y0, vy1 ?? y1);
-gl.uniform1i(u("u_xmode"), this._axisMode(g.xAxis));
-gl.uniform1i(u("u_ymode"), this._axisMode(g.yAxis));
-const xrev = (vx0 ?? x0) > (vx1 ?? x1);
-const yrev = (vy0 ?? y0) > (vy1 ?? y1);
-gl.uniform4f(
-u("u_gridRange"),
-h.xRange[xrev ? 1 : 0], h.xRange[xrev ? 0 : 1],
-h.yRange[yrev ? 1 : 0], h.yRange[yrev ? 0 : 1],
-);
-gl.uniform1f(u("u_opacity"), this._fillOpacity(g.trace.style) * (g._transitionOpacity ?? 1));
-gl.uniform1i(u("u_truecolor"), h.truecolor ? 1 : 0);
-gl.activeTexture(gl.TEXTURE0);
-gl.bindTexture(gl.TEXTURE_2D, h.tex);
-gl.uniform1i(u("u_grid"), 0);
-if (!h.truecolor) {
-gl.activeTexture(gl.TEXTURE1);
-gl.bindTexture(gl.TEXTURE_2D, h.lut);
-gl.uniform1i(u("u_lut"), 1);
-}
-gl.bindVertexArray(this.quadVao);
-gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
-}
-_drawLine(g, xm, ym, color = null, width = null, opacity = null) {
-if (g.n < 2) return;
-const gl = this.gl;
-gl.useProgram(this.lineProg);
-const u = (n) => uniformOf(gl, this.lineProg, n);
-gl.uniform2f(u("u_xmap"), xm[0], xm[1]);
-gl.uniform2f(u("u_ymap"), ym[0], ym[1]);
-this._setAxisUniforms(this.lineProg, "u_x", g.xMeta, g.xAxis);
-this._setAxisUniforms(this.lineProg, "u_y", g.yMeta, g.yAxis);
-gl.uniform2f(u("u_res"), this.canvas.width, this.canvas.height);
-const transitionOn = !!(g._transitionPrevXBuf && g._transitionPrevYBuf);
-gl.uniform1i(u("u_transitionActive"), transitionOn ? 1 : 0);
-gl.uniform1f(u("u_transitionProgress"), g._transitionPositionProgress ?? 1);
-const reveal = Math.max(0, Math.min(1, g._transitionReveal ?? 1));
-gl.uniform1f(u("u_revealProgress"), reveal);
-gl.uniform1f(u("u_revealSegments"), g.n - 1);
-gl.uniform1f(u("u_width"), (width ?? g.trace.style.width ?? 1.5) * this.dpr);
-const [r, gg, b, a] = color || g.color;
-const strokeOpacity = this._strokeOpacity(g.trace.style) * (opacity ?? 1) * (g._transitionOpacity ?? 1);
-gl.uniform4f(u("u_color"), r, gg, b, a * strokeOpacity);
-const dashed = this._lineDash(g);
-this._bindVao(
-g,
-"line",
-[g.xBuf._fcId, g.yBuf._fcId, dashed ? g._lenBuf._fcId : 0,
-transitionOn ? g._transitionPrevXBuf._fcId : 0,
-transitionOn ? g._transitionPrevYBuf._fcId : 0],
-() => {
-this._vaoAttr(ATTR_SLOTS.ax0, g.xBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ax1, g.xBuf, 4, 1);
-this._vaoAttr(ATTR_SLOTS.ay0, g.yBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ay1, g.yBuf, 4, 1);
-if (dashed) {
-this._vaoAttr(ATTR_SLOTS.a_len0, g._lenBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.a_len1, g._lenBuf, 4, 1);
-}
-if (transitionOn) {
-this._vaoAttr(ATTR_SLOTS.a_prevx, g._transitionPrevXBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.a_prevy, g._transitionPrevYBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.a_prevx1, g._transitionPrevXBuf, 4, 1);
-this._vaoAttr(ATTR_SLOTS.a_prevy1, g._transitionPrevYBuf, 4, 1);
-}
-}
-);
-const segments = Math.max(0, Math.min(g.n - 1, Math.ceil((g.n - 1) * reveal)));
-gl.drawArraysInstanced(gl.TRIANGLE_STRIP, 0, 4, segments);
-}
-_drawSegments(g, xm, ym) {
-if (g.n < 1) return;
-const gl = this.gl;
-const prog = this.segmentProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_xmap"), xm[0], xm[1]);
-gl.uniform2f(u("u_ymap"), ym[0], ym[1]);
-this._setAxisUniforms(prog, "u_x0", g.x0Meta, g.xAxis);
-this._setAxisUniforms(prog, "u_x1", g.x1Meta, g.xAxis);
-this._setAxisUniforms(prog, "u_y0", g.y0Meta, g.yAxis);
-this._setAxisUniforms(prog, "u_y1", g.y1Meta, g.yAxis);
-gl.uniform2f(u("u_res"), this.canvas.width, this.canvas.height);
-gl.uniform1f(u("u_width"), (g.trace.style.width ?? 1.5) * this.dpr);
-gl.uniform1f(u("u_animationProgress"), g._transitionScale ?? 1);
-const [r, gg, b, a] = g.color;
-gl.uniform4f(u("u_color"), r, gg, b, a);
-gl.uniform1f(u("u_opacity"), this._strokeOpacity(g.trace.style) * (g._transitionOpacity ?? 1));
-gl.uniform1i(u("u_colorMode"), g.colorMode || 0);
-const dashed = this._segmentDash(g, prog);
-if (g.colorMode && g.lut) {
-gl.activeTexture(gl.TEXTURE0);
-gl.bindTexture(gl.TEXTURE_2D, g.lut);
-gl.uniform1i(u("u_lut"), 0);
-}
-this._bindVao(
-g,
-"segment",
-[g.x0Buf._fcId, g.x1Buf._fcId, g.y0Buf._fcId, g.y1Buf._fcId,
-g.colorMode && g.cBuf ? g.cBuf._fcId : 0,
-g.rgbaBuf ? g.rgbaBuf._fcId : 0,
-g.styleBuf ? g.styleBuf._fcId : 0,
-dashed ? g._segmentDashOffsetBuf._fcId : 0,
-dashed ? g._segmentDashDirBuf._fcId : 0],
-() => {
-this._vaoAttr(ATTR_SLOTS.ax0, g.x0Buf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ax1, g.x1Buf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ay0, g.y0Buf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ay1, g.y1Buf, 0, 1);
-if (g.colorMode && g.cBuf) this._vaoAttr(ATTR_SLOTS.a_cval, g.cBuf, 0, 1);
-if (g.rgbaBuf) this._vaoAttr(ATTR_SLOTS.a_rgba, g.rgbaBuf, 0, 1, 4, true);
-if (g.styleBuf) this._vaoAttr(ATTR_SLOTS.a_style, g.styleBuf, 0, 1, 4);
-if (dashed) {
-this._vaoAttr(ATTR_SLOTS.a_dash0, g._segmentDashOffsetBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.a_dashDir, g._segmentDashDirBuf, 0, 1);
-}
-}
-);
-if (!g.cBuf) gl.vertexAttrib1f(ATTR_SLOTS.a_cval, 0);
-if (!g.rgbaBuf) gl.vertexAttrib4f(ATTR_SLOTS.a_rgba, r, gg, b, a);
-if (!g.styleBuf) gl.vertexAttrib4f(ATTR_SLOTS.a_style, 1, -1, -1, -1);
-const count = Math.max(0, Math.min(g.n, Math.ceil(g.n * (g._transitionReveal ?? 1))));
-gl.drawArraysInstanced(gl.TRIANGLE_STRIP, 0, 4, count);
-}
-_segmentDash(g, prog) {
-const gl = this.gl;
-const u = (n) => uniformOf(gl, prog, n);
-const dash = g.trace.style && g.trace.style.dash;
-const cpu = g._segmentCpu;
-if (!dash || !dash.length || !cpu) {
-gl.uniform1i(u("u_dashCount"), 0);
-return false;
-}
-const n = g.n;
-const offsets = g._segmentDashOffsets?.length === n
-? g._segmentDashOffsets : (g._segmentDashOffsets = new Float32Array(n));
-const directions = g._segmentDashDirections?.length === n
-? g._segmentDashDirections : (g._segmentDashDirections = new Float32Array(n));
-const k0 = new Array(n), k1 = new Array(n), lengths = new Float32Array(n);
-const adjacency = new Map();
-const add = (key, index) => {
-const edges = adjacency.get(key);
-if (edges) edges.push(index); else adjacency.set(key, [index]);
-};
-const key = (x, y) => `${Math.round(x * 1000)},${Math.round(y * 1000)}`;
-const dpr = this.dpr;
-for (let i = 0; i < n; i++) {
-const x0 = this._dataPx(g.xAxis, this._decodeValue(cpu.x0, g.x0Meta, i));
-const x1 = this._dataPx(g.xAxis, this._decodeValue(cpu.x1, g.x1Meta, i));
-const y0 = this._dataPx(g.yAxis, this._decodeValue(cpu.y0, g.y0Meta, i));
-const y1 = this._dataPx(g.yAxis, this._decodeValue(cpu.y1, g.y1Meta, i));
-k0[i] = key(x0, y0); k1[i] = key(x1, y1);
-lengths[i] = Math.hypot(x1 - x0, y1 - y0) * dpr;
-add(k0[i], i); add(k1[i], i);
-}
-const visited = new Uint8Array(n);
-const walk = (start) => {
-let current = start, accumulated = 0;
-while (true) {
-const edge = (adjacency.get(current) || []).find((index) => !visited[index]);
-if (edge === undefined) break;
-visited[edge] = 1;
-if (k0[edge] === current) {
-offsets[edge] = accumulated;
-directions[edge] = 1;
-current = k1[edge];
-} else {
-offsets[edge] = accumulated + lengths[edge];
-directions[edge] = -1;
-current = k0[edge];
-}
-accumulated += lengths[edge];
-}
-};
-for (const [node, edges] of adjacency) if (edges.length === 1) walk(node);
-for (let i = 0; i < n; i++) if (!visited[i]) walk(k0[i]);
-const upload = (buffer, values) => {
-if (!buffer) return this._upload(values);
-gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
-gl.bufferData(gl.ARRAY_BUFFER, values, gl.DYNAMIC_DRAW);
-return buffer;
-};
-g._segmentDashOffsetBuf = upload(g._segmentDashOffsetBuf, offsets);
-g._segmentDashDirBuf = upload(g._segmentDashDirBuf, directions);
-const pattern = new Float32Array(8);
-const count = Math.min(dash.length, 8);
-let period = 0;
-for (let i = 0; i < count; i++) {
-pattern[i] = Number(dash[i]) * dpr;
-period += pattern[i];
-}
-gl.uniform1i(u("u_dashCount"), count);
-gl.uniform1fv(u("u_dashArr"), pattern);
-gl.uniform1f(u("u_dashPeriod"), Math.max(period, 1e-3));
-return true;
-}
-_drawMesh(g, xm, ym) {
-if (g.n < 1) return;
-const gl = this.gl;
-const prog = this.meshProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_xmap"), xm[0], xm[1]);
-gl.uniform2f(u("u_ymap"), ym[0], ym[1]);
-for (const name of ["x0", "x1", "x2"]) this._setAxisUniforms(prog, "u_" + name, g[name + "Meta"], g.xAxis);
-for (const name of ["y0", "y1", "y2"]) this._setAxisUniforms(prog, "u_" + name, g[name + "Meta"], g.yAxis);
-gl.uniform1i(u("u_colorMode"), g.colorMode || 0);
-gl.uniform1f(u("u_opacity"), this._fillOpacity(g.trace.style));
-gl.uniform4f(u("u_color"), g.color[0], g.color[1], g.color[2], g.color[3]);
-const stroke = g.meshStroke || [0, 0, 0, 0];
-gl.uniform4f(u("u_stroke"), stroke[0], stroke[1], stroke[2], stroke[3]);
-gl.uniform1f(u("u_strokeWidth"), g.meshStrokeWidth || 0);
-gl.uniform1i(u("u_strokeMode"), g.strokeBuf ? 1 : 0);
-gl.uniform1f(u("u_strokeOpacity"), this._strokeOpacity(g.trace.style));
-if (g.colorMode && g.lut) {
-gl.activeTexture(gl.TEXTURE0);
-gl.bindTexture(gl.TEXTURE_2D, g.lut);
-gl.uniform1i(u("u_lut"), 0);
-}
-const parts = ["x0", "x1", "x2", "y0", "y1", "y2"].map((name) => g[name + "Buf"]._fcId);
-parts.push(g.cBuf ? g.cBuf._fcId : 0, g.rgbaBuf ? g.rgbaBuf._fcId : 0,
-g.styleBuf ? g.styleBuf._fcId : 0, g.strokeBuf ? g.strokeBuf._fcId : 0);
-this._bindVao(g, "mesh", parts, () => {
-for (const name of ["x0", "x1", "x2", "y0", "y1", "y2"]) {
-this._vaoAttr(ATTR_SLOTS["a" + name], g[name + "Buf"], 0, 1);
-}
-if (g.cBuf) this._vaoAttr(ATTR_SLOTS.a_cval, g.cBuf, 0, 1);
-if (g.rgbaBuf) this._vaoAttr(ATTR_SLOTS.a_rgba, g.rgbaBuf, 0, 1, 4, true);
-if (g.styleBuf) this._vaoAttr(ATTR_SLOTS.a_style, g.styleBuf, 0, 1, 4);
-if (g.strokeBuf) this._vaoAttr(ATTR_SLOTS.a_stroke, g.strokeBuf, 0, 1, 4, true);
-});
-if (!g.cBuf) gl.vertexAttrib1f(ATTR_SLOTS.a_cval, 0);
-if (!g.rgbaBuf) gl.vertexAttrib4f(ATTR_SLOTS.a_rgba, ...g.color);
-if (!g.styleBuf) gl.vertexAttrib4f(ATTR_SLOTS.a_style, 1, -1, -1, -1);
-if (!g.strokeBuf) gl.vertexAttrib4f(ATTR_SLOTS.a_stroke, ...stroke);
-gl.drawArraysInstanced(gl.TRIANGLES, 0, 3, g.n);
-}
-_lineDash(g) {
-const gl = this.gl;
-const u = (n) => uniformOf(gl, this.lineProg, n);
-const dash = g.trace.style && g.trace.style.dash;
-if (!dash || !dash.length || !g._dashX) {
-gl.uniform1i(u("u_dashCount"), 0);
-return false;
-}
-const n = g.n;
-if (!g._lenArr || g._lenArr.length !== n) g._lenArr = new Float32Array(n);
-const lens = g._lenArr;
-const dpr = this.dpr;
-let px = this._dataPx(g.xAxis, this._decodeValue(g._dashX, g.xMeta, 0));
-let py = this._dataPx(g.yAxis, this._decodeValue(g._dashY, g.yMeta, 0));
-let acc = 0;
-lens[0] = 0;
-for (let i = 1; i < n; i++) {
-const nx = this._dataPx(g.xAxis, this._decodeValue(g._dashX, g.xMeta, i));
-const ny = this._dataPx(g.yAxis, this._decodeValue(g._dashY, g.yMeta, i));
-if (Number.isFinite(nx) && Number.isFinite(ny) && Number.isFinite(px) && Number.isFinite(py)) {
-acc += Math.hypot(nx - px, ny - py) * dpr;
-}
-lens[i] = acc;
-px = nx;
-py = ny;
-}
-if (!g._lenBuf) g._lenBuf = this._upload(lens);
-else {
-gl.bindBuffer(gl.ARRAY_BUFFER, g._lenBuf);
-gl.bufferData(gl.ARRAY_BUFFER, lens, gl.DYNAMIC_DRAW);
-}
-const arr = new Float32Array(8);
-let period = 0;
-const count = Math.min(dash.length, 8);
-for (let i = 0; i < count; i++) {
-arr[i] = dash[i] * dpr;
-period += arr[i];
-}
-gl.uniform1i(u("u_dashCount"), count);
-gl.uniform1fv(u("u_dashArr"), arr);
-gl.uniform1f(u("u_dashPeriod"), Math.max(period, 1e-3));
-return true;
-}
-_drawArea(g, xm, ym, bm) {
-if (g.n < 2) return;
-const gl = this.gl;
-const prog = this.areaProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_xmap"), xm[0], xm[1]);
-gl.uniform2f(u("u_ymap"), ym[0], ym[1]);
-gl.uniform2f(u("u_bmap"), bm[0], bm[1]);
-this._setAxisUniforms(prog, "u_x", g.xMeta, g.xAxis);
-this._setAxisUniforms(prog, "u_y", g.yMeta, g.yAxis);
-this._setAxisUniforms(prog, "u_b", g.baseMeta, g.yAxis);
-const reveal = Math.max(0, Math.min(1, g._transitionReveal ?? 1));
-gl.uniform1f(u("u_revealProgress"), reveal);
-gl.uniform1f(u("u_revealSegments"), g.n - 1);
-const [r, gg, b, a] = g.color;
-gl.uniform4f(u("u_color"), r, gg, b, a * this._fillOpacity(g.trace.style, 0.35) * (g._transitionOpacity ?? 1));
-gl.uniform2f(u("u_res"), this.canvas.width, this.canvas.height);
-this._setGradientUniforms(prog, g.grad);
-this._bindVao(g, "area", [g.xBuf._fcId, g.yBuf._fcId, g.baseBuf._fcId], () => {
-this._vaoAttr(ATTR_SLOTS.ax0, g.xBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ax1, g.xBuf, 4, 1);
-this._vaoAttr(ATTR_SLOTS.ay0, g.yBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ay1, g.yBuf, 4, 1);
-this._vaoAttr(ATTR_SLOTS.ab0, g.baseBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ab1, g.baseBuf, 4, 1);
-});
-const count = Math.max(0, Math.min(g.n - 1, Math.ceil((g.n - 1) * reveal)));
-gl.drawArraysInstanced(gl.TRIANGLE_STRIP, 0, 4, count);
-}
-_drawRects(g, x0, x1, y0, y1, edgePad = [0, 0, 0, 0]) {
-if (!g.n) return;
-const gl = this.gl;
-const prog = this.rectProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_x0map"), x0[0], x0[1]);
-gl.uniform2f(u("u_x1map"), x1[0], x1[1]);
-gl.uniform2f(u("u_y0map"), y0[0], y0[1]);
-gl.uniform2f(u("u_y1map"), y1[0], y1[1]);
-this._setAxisUniforms(prog, "u_x0", g.x0Meta, g.xAxis);
-this._setAxisUniforms(prog, "u_x1", g.x1Meta, g.xAxis);
-this._setAxisUniforms(prog, "u_y0", g.y0Meta, g.yAxis);
-this._setAxisUniforms(prog, "u_y1", g.y1Meta, g.yAxis);
-gl.uniform1i(u("u_xmode"), this._axisMode(g.xAxis));
-gl.uniform1i(u("u_ymode"), this._axisMode(g.yAxis));
-gl.uniform4f(u("u_edgePad"), edgePad[0], edgePad[1], edgePad[2], edgePad[3]);
-const [r, gg, b, a] = g.color;
-gl.uniform4f(u("u_color"), r, gg, b, a);
-gl.uniform1f(u("u_opacity"), this._fillOpacity(g.trace.style) * (g._transitionOpacity ?? 1));
-gl.uniform1i(u("u_colorMode"), g.colorMode || 0);
-this._setRectStyleUniforms(prog, g);
-const colorOn = !!g.cBuf;
-const rgbaOn = !!g.rgbaBuf;
-const styleOn = !!g.styleBuf;
-const strokeOn = !!g.strokeBuf;
-const radiusOn = !!g.radiusBuf;
-if (colorOn) {
-gl.activeTexture(gl.TEXTURE0);
-gl.bindTexture(gl.TEXTURE_2D, g.lut);
-gl.uniform1i(u("u_lut"), 0);
-}
-this._bindVao(
-g,
-"rects",
-[g.x0Buf._fcId, g.x1Buf._fcId, g.y0Buf._fcId, g.y1Buf._fcId,
-colorOn ? g.cBuf._fcId : 0, rgbaOn ? g.rgbaBuf._fcId : 0,
-styleOn ? g.styleBuf._fcId : 0, strokeOn ? g.strokeBuf._fcId : 0,
-radiusOn ? g.radiusBuf._fcId : 0],
-() => {
-this._vaoAttr(ATTR_SLOTS.ax0, g.x0Buf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ax1, g.x1Buf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ay0, g.y0Buf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.ay1, g.y1Buf, 0, 1);
-if (colorOn) this._vaoAttr(ATTR_SLOTS.a_cval, g.cBuf, 0, 1);
-if (rgbaOn) this._vaoAttr(ATTR_SLOTS.a_rgba, g.rgbaBuf, 0, 1, 4, true);
-if (styleOn) this._vaoAttr(ATTR_SLOTS.a_style, g.styleBuf, 0, 1, 4);
-if (strokeOn) this._vaoAttr(ATTR_SLOTS.a_stroke, g.strokeBuf, 0, 1, 4, true);
-if (radiusOn) this._vaoAttr(ATTR_SLOTS.a_radius, g.radiusBuf, 0, 1, 2);
-}
-);
-if (!colorOn) gl.vertexAttrib1f(ATTR_SLOTS.a_cval, 0);
-if (!rgbaOn) gl.vertexAttrib4f(ATTR_SLOTS.a_rgba, r, gg, b, a);
-if (!styleOn) gl.vertexAttrib4f(ATTR_SLOTS.a_style, 1, -1, -1, -1);
-if (!strokeOn) gl.vertexAttrib4f(ATTR_SLOTS.a_stroke, ...(g.strokeColor || g.color));
-if (!radiusOn) gl.vertexAttrib2f(ATTR_SLOTS.a_radius, -1, -1);
-gl.drawArraysInstanced(gl.TRIANGLE_STRIP, 0, 4, g.n);
-}
-_drawBars(g, pmap, v1map, v0map, v0Const, v0EdgePad = 0) {
-if (!g.n) return;
-const gl = this.gl;
-const prog = this.barProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform2f(u("u_pmap"), pmap[0], pmap[1]);
-gl.uniform2f(u("u_v1map"), v1map[0], v1map[1]);
-gl.uniform2f(u("u_v0map"), v0map ? v0map[0] : 1, v0map ? v0map[1] : 0);
-const pAxis = g.orientation === 1 ? g.yAxis : g.xAxis;
-const vAxis = g.orientation === 1 ? g.xAxis : g.yAxis;
-this._setAxisUniforms(prog, "u_p", g.posMeta, pAxis);
-this._setAxisUniforms(prog, "u_v1", g.value1Meta, vAxis);
-this._setAxisUniforms(prog, "u_v0", g.value0Meta, vAxis);
-gl.uniform1i(u("u_pmode"), this._axisMode(pAxis));
-gl.uniform1i(u("u_vmode"), this._axisMode(vAxis));
-gl.uniform1f(u("u_width"), g.width);
-gl.uniform1i(u("u_orientation"), g.orientation);
-gl.uniform1i(u("u_v0Mode"), g.value0Mode);
-gl.uniform1f(u("u_v0Const"), v0Const ?? 0);
-gl.uniform1f(u("u_v0EdgePad"), v0EdgePad);
-gl.uniform1f(u("u_animationProgress"), g._transitionGrow ?? 1);
-const transitionOn = !!(
-g._transitionPrevPosBuf &&
-g._transitionPrevValue1Buf &&
-g._transitionPrevValue0Buf
-);
-gl.uniform1i(u("u_transitionActive"), transitionOn ? 1 : 0);
-gl.uniform1f(u("u_transitionProgress"), g._transitionPositionProgress ?? 1);
-gl.uniform1f(u("u_prevWidth"), g._transitionPrevWidth ?? g.width);
-const [r, gg, b, a] = g.color;
-gl.uniform4f(u("u_color"), r, gg, b, a);
-gl.uniform1f(u("u_opacity"), this._fillOpacity(g.trace.style) * (g._transitionOpacity ?? 1));
-gl.uniform1i(u("u_colorMode"), g.colorMode || 0);
-this._setRectStyleUniforms(prog, g);
-const v0On = g.value0Mode === 1 && g.value0Buf;
-const colorOn = !!g.cBuf;
-const rgbaOn = !!g.rgbaBuf;
-const styleOn = !!g.styleBuf;
-const strokeOn = !!g.strokeBuf;
-const radiusOn = !!g.radiusBuf;
-if (colorOn) {
-gl.activeTexture(gl.TEXTURE0);
-gl.bindTexture(gl.TEXTURE_2D, g.lut);
-gl.uniform1i(u("u_lut"), 0);
-}
-this._bindVao(
-g,
-"bars",
-[
-g.posBuf._fcId, g.value1Buf._fcId,
-v0On ? g.value0Buf._fcId : 0,
-colorOn ? g.cBuf._fcId : 0,
-transitionOn ? g._transitionPrevPosBuf._fcId : 0,
-transitionOn ? g._transitionPrevValue1Buf._fcId : 0,
-transitionOn ? g._transitionPrevValue0Buf._fcId : 0,
-rgbaOn ? g.rgbaBuf._fcId : 0,
-styleOn ? g.styleBuf._fcId : 0,
-strokeOn ? g.strokeBuf._fcId : 0,
-radiusOn ? g.radiusBuf._fcId : 0,
-],
-() => {
-this._vaoAttr(ATTR_SLOTS.a_pos, g.posBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.a_v1, g.value1Buf, 0, 1);
-if (v0On) this._vaoAttr(ATTR_SLOTS.a_v0, g.value0Buf, 0, 1);
-if (colorOn) this._vaoAttr(ATTR_SLOTS.a_cval, g.cBuf, 0, 1);
-if (transitionOn) {
-this._vaoAttr(ATTR_SLOTS.a_prevx, g._transitionPrevPosBuf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.a_prevy, g._transitionPrevValue1Buf, 0, 1);
-this._vaoAttr(ATTR_SLOTS.a_prevx1, g._transitionPrevValue0Buf, 0, 1);
-}
-if (rgbaOn) this._vaoAttr(ATTR_SLOTS.a_rgba, g.rgbaBuf, 0, 1, 4, true);
-if (styleOn) this._vaoAttr(ATTR_SLOTS.a_style, g.styleBuf, 0, 1, 4);
-if (strokeOn) this._vaoAttr(ATTR_SLOTS.a_stroke, g.strokeBuf, 0, 1, 4, true);
-if (radiusOn) this._vaoAttr(ATTR_SLOTS.a_radius, g.radiusBuf, 0, 1, 2);
-}
-);
-if (!v0On) gl.vertexAttrib1f(ATTR_SLOTS.a_v0, 0);
-if (!colorOn) gl.vertexAttrib1f(ATTR_SLOTS.a_cval, 0);
-if (!rgbaOn) gl.vertexAttrib4f(ATTR_SLOTS.a_rgba, r, gg, b, a);
-if (!styleOn) gl.vertexAttrib4f(ATTR_SLOTS.a_style, 1, -1, -1, -1);
-if (!strokeOn) gl.vertexAttrib4f(ATTR_SLOTS.a_stroke, ...(g.strokeColor || g.color));
-if (!radiusOn) gl.vertexAttrib2f(ATTR_SLOTS.a_radius, -1, -1);
-gl.drawArraysInstanced(gl.TRIANGLE_STRIP, 0, 4, g.n);
-}
-_dataPxX(value) {
-return this._dataPx("x", value);
-}
-_dataPxY(value) {
-return this._dataPx("y", value);
-}
-_styleNumber(style, key, fallback) {
-if (!style || typeof style !== "object") return fallback;
-const value = Number(style[key]);
-return Number.isFinite(value) ? value : fallback;
-}
-_axisStyleNumber(axis, key, fallback) {
-return this._styleNumber(axis && axis.style, key, fallback);
-}
-_axisStylePaint(axis, key, fallback) {
-const style = axis && typeof axis.style === "object" ? axis.style : null;
-return safeCssPaint(this.root, style && style[key], fallback);
-}
-_axisStyleValue(axis, key) {
-const style = axis && typeof axis.style === "object" ? axis.style : null;
-return style && Object.prototype.hasOwnProperty.call(style, key) ? style[key] : undefined;
-}
-_axisGridDash(axis) {
-const value = String(this._axisStyleValue(axis, "grid_dash") || "solid");
-if (value === "dashed") return [6, 4];
-if (value === "dotted") return [1, 3];
-if (value === "dashdot") return [6, 3, 1, 3];
-return [];
-}
-_axisTickLabelStrategy(axis) {
-const value = String((axis && axis.tick_label_strategy) || "auto").replace(/-/g, "_");
-return ["auto", "hide", "rotate", "stagger", "none", "off"].includes(value) ? value : "auto";
-}
-_axisTickLabelAnchor(axis) {
-const raw = axis && axis.tick_label_anchor !== undefined
-? axis.tick_label_anchor
-: this._axisStyleValue(axis, "tick_label_anchor");
-if (raw == null) return null;
-const value = String(raw).toLowerCase();
-if (value === "start" || value === "left") return "start";
-if (value === "end" || value === "right") return "end";
-if (value === "center" || value === "middle") return "center";
-return null;
-}
-_axisTickLabelAngle(axis) {
-const angle = Number(axis ? axis.tick_label_angle : undefined);
-return Number.isFinite(angle) ? angle : null;
-}
-_axisTickLabelMinGap(axis, dim) {
-const gap = Number(axis ? axis.tick_label_min_gap : undefined);
-return Number.isFinite(gap) && gap >= 0 ? gap : (dim === "x" ? 8 : 4);
-}
-_estimateTickLabel(text, fontSize) {
-const s = String(text || "");
-return { w: Math.max(fontSize * 0.7, s.length * fontSize * 0.62), h: fontSize * 1.2 };
-}
-_tickLabelExtent(label, dim, fontSize) {
-const size = this._estimateTickLabel(label.text, fontSize);
-const angle = Math.abs(Number(label.angle || 0)) * Math.PI / 180;
-return dim === "y"
-? Math.abs(Math.sin(angle)) * size.w + Math.abs(Math.cos(angle)) * size.h
-: Math.abs(Math.cos(angle)) * size.w + Math.abs(Math.sin(angle)) * size.h;
-}
-_tickLabelsCollide(labels, dim, fontSize, minGap, anchor = "center") {
-const rows = new Map();
-for (const label of labels) {
-const row = Number(label.row || 0);
-if (!rows.has(row)) rows.set(row, []);
-rows.get(row).push(label);
-}
-for (const rowLabels of rows.values()) {
-rowLabels.sort((a, b) => a.pos - b.pos);
-if (dim === "x" && anchor !== "center") {
-for (let i = 1; i < rowLabels.length; i++) {
-const prev = rowLabels[i - 1];
-const label = rowLabels[i];
-const spacing = label.pos - prev.pos;
-const angle = Math.abs(Number(label.angle || 0)) * Math.PI / 180;
-if (angle) {
-if (spacing * Math.sin(angle) < fontSize * 1.2 + minGap) return true;
-} else {
-const lead = anchor === "end" ? label : prev;
-if (spacing < this._estimateTickLabel(lead.text, fontSize).w + minGap) return true;
-}
-}
-continue;
-}
-let lastEnd = -Infinity;
-for (const label of rowLabels) {
-const extent = this._tickLabelExtent(label, dim, fontSize);
-const start = label.pos - extent / 2;
-const end = label.pos + extent / 2;
-if (start < lastEnd + minGap) return true;
-lastEnd = end;
-}
-}
-return false;
-}
-_downsampleTickLabels(labels, dim, fontSize, minGap, anchor = "center") {
-if (labels.length <= 1) return labels;
-for (let stride = 2; stride <= labels.length; stride++) {
-const out = labels.filter((_, i) => i % stride === 0);
-if (!this._tickLabelsCollide(out, dim, fontSize, minGap, anchor)) return out;
-}
-return labels.slice(0, 1);
-}
-_layoutTickLabels(axis, dim, labels) {
-const strategyValue = this._axisTickLabelStrategy(axis);
-if (strategyValue === "none" || strategyValue === "off") return [];
-if (labels.length <= 1) {
-const angle = this._axisTickLabelAngle(axis);
-return labels.map((label) => ({ ...label, angle: angle === null ? 0 : angle, row: 0 }));
-}
-const fontSize = Math.max(
-8,
-this._axisStyleNumber(axis, "tick_label_size", this._axisStyleNumber(axis, "tick_size", 11)),
-);
-const minGap = this._axisTickLabelMinGap(axis, dim);
-const anchor = dim === "x" ? (this._axisTickLabelAnchor(axis) ?? "center") : "center";
-const explicitAngle = this._axisTickLabelAngle(axis);
-const baseAngle = explicitAngle === null ? 0 : explicitAngle;
-const withBase = labels.map((label) => ({ ...label, angle: baseAngle, row: 0 }));
-let strategy = strategyValue;
-if (strategy === "auto") {
-if (!this._tickLabelsCollide(withBase, dim, fontSize, minGap, anchor)) return withBase;
-if (dim === "x" && axis.kind === "category" && labels.length <= 16) strategy = "rotate";
-else if (dim === "x" && labels.length <= 24) strategy = "stagger";
-else strategy = "hide";
-}
-let out = withBase;
-if (strategy === "rotate" && dim === "x") {
-const angle = explicitAngle === null ? (axis.side === "top" ? 35 : -35) : explicitAngle;
-out = labels.map((label) => ({ ...label, angle, row: 0 }));
-} else if (strategy === "stagger" && dim === "x") {
-out = labels.map((label, i) => ({ ...label, angle: baseAngle, row: i % 2 }));
-}
-if (this._tickLabelsCollide(out, dim, fontSize, minGap, anchor)) {
-out = this._downsampleTickLabels(out, dim, fontSize, minGap, anchor);
-}
-return out;
-}
-_xTickLabelTransform(axis, angle) {
-const value = Number(angle || 0);
-const side = axis && axis.side === "top" ? "top" : "bottom";
-const anchor = this._axisTickLabelAnchor(axis);
-if (anchor) {
-const shift = anchor === "end" ? "-100%" : anchor === "start" ? "0%" : "-50%";
-const originX = anchor === "end" ? "right" : anchor === "start" ? "left" : "center";
-return {
-transform: `translateX(${shift}) rotate(${value}deg)`,
-origin: `${originX} ${side === "top" ? "bottom" : "top"}`,
-};
-}
-if (value === 0) {
-return {
-transform: "translateX(-50%)",
-origin: side === "top" ? "bottom center" : "top center",
-};
-}
-const anchorAtEnd = (side === "bottom" && value < 0) || (side === "top" && value > 0);
-const verticalOrigin = side === "top" ? "bottom" : "top";
-return {
-transform: `${anchorAtEnd ? "translateX(-100%) " : ""}rotate(${value}deg)`,
-origin: `${verticalOrigin} ${anchorAtEnd ? "right" : "left"}`,
-};
-}
-_axisLabelCss(axis, dim, fallbackCss) {
-const rawPosition = axis && axis.label_position;
-const hasPosition = rawPosition !== undefined && rawPosition !== null;
-const hasOffset = axis && Number.isFinite(Number(axis.label_offset));
-const hasAngle = axis && Number.isFinite(Number(axis.label_angle));
-if (!hasPosition && !hasOffset && !hasAngle) return { css: fallbackCss, style: null };
-if (rawPosition && typeof rawPosition === "object" && !Array.isArray(rawPosition)) {
-return { css: "font-weight:500;white-space:nowrap;", style: rawPosition };
-}
-const p = this.plot;
-const position = String(hasPosition ? rawPosition : "center").replace(/-/g, "_");
-const inside = position.startsWith("inside_");
-const anchor = inside ? position.slice("inside_".length) : position;
-const offset = hasOffset ? Number(axis.label_offset) : 0;
-const side = axis && axis.side;
-const anchorFrac = anchor === "start" ? 0 : (anchor === "end" ? 1 : 0.5);
-if (dim === "x") {
-const x = p.x + p.w * anchorFrac;
-const outsideY = side === "top" ? p.y - 34 : p.y + p.h + 24;
-const insideY = side === "top" ? p.y + 12 : p.y + p.h - 12;
-const y = (inside ? insideY : outsideY) +
-(side === "top" ? (inside ? offset : -offset) : (inside ? -offset : offset));
-const translateX = anchor === "start" ? 0 : (anchor === "end" ? -100 : -50);
-const angle = hasAngle ? Number(axis.label_angle) : 0;
-return {
-css:
-`left:${x}px;top:${y}px;` +
-`transform:translateX(${translateX}%) rotate(${angle}deg);` +
-"transform-origin:center;font-weight:500;white-space:nowrap;",
-style: null,
-};
-}
-const xOutside = side === "right" ? p.x + p.w + 40 : 10;
-const xInside = side === "right" ? p.x + p.w - 12 : p.x + 12;
-const x = (inside ? xInside : xOutside) +
-(side === "right" ? (inside ? -offset : offset) : (inside ? offset : -offset));
-const y = p.y + p.h * (1 - anchorFrac);
-const angle = hasAngle ? Number(axis.label_angle) : (side === "right" ? 90 : -90);
-return {
-css:
-`left:${x}px;top:${y}px;` +
-`transform:translate(-50%,-50%) rotate(${angle}deg);` +
-"transform-origin:center;font-weight:500;white-space:nowrap;",
-style: null,
-};
-}
-_drawChrome() {
-const s = this.spec;
-const dpr = this.dpr;
-const ctx = this.chrome.getContext("2d");
-ctx.setTransform(dpr, 0, 0, dpr, 0, 0);
-ctx.clearRect(0, 0, this.size.w, this.size.h);
-const now = this._now();
-const labelCadenceMs = this._viewAnim ? 80 : 0;
-const updateLabels = labelCadenceMs === 0
-|| this._lastLabelDraw === null
-|| now - this._lastLabelDraw >= labelCadenceMs;
-if (updateLabels) {
-this.labels.textContent = "";
-this._lastLabelDraw = now;
-}
-const p = this.plot;
-if (this.theme.bg) {
-ctx.fillStyle = cssColor(this.theme.bg);
-ctx.fillRect(p.x, p.y, p.w, p.h);
-}
-const xAxis = this._axis("x");
-const yAxis = this._axis("y");
-const extraXAxes = Object.values(this.axes).filter((axis) =>
-axis && axis.id !== "x" && String(axis.id || "").startsWith("x"));
-const extraYAxes = Object.values(this.axes).filter((axis) =>
-axis && axis.id !== "y" && String(axis.id || "").startsWith("y"));
-const hideX = this._axisTickLabelStrategy(xAxis) === "none";
-const hideY = this._axisTickLabelStrategy(yAxis) === "none";
-const xt = this._axisTicks(
-"x",
-this._axisTickTarget("x", Math.max(3, p.w / (xAxis.kind === "time" ? 90 : 80))),
-);
-const yt = this._axisTicks("y", this._axisTickTarget("y", Math.max(3, p.h / 45)));
-const xEdge = (px) => Math.min(p.x + p.w - 0.5, Math.max(p.x + 0.5, Math.round(px) + 0.5));
-const yEdge = (py) => Math.min(p.y + p.h - 0.5, Math.max(p.y + 0.5, Math.round(py) + 0.5));
-ctx.strokeStyle = this._axisStylePaint(xAxis, "grid_color", this.theme.grid);
-ctx.lineWidth = Math.max(0.5, this._axisStyleNumber(xAxis, "grid_width", 1));
-ctx.globalAlpha = this._axisStyleNumber(xAxis, "grid_opacity", 1);
-ctx.setLineDash(this._axisGridDash(xAxis));
-ctx.beginPath();
-for (const v of (hideX ? [] : xt.ticks)) {
-const px = this._dataPx("x", v);
-if (!Number.isFinite(px)) continue;
-const x = xEdge(px);
-ctx.moveTo(x, p.y);
-ctx.lineTo(x, p.y + p.h);
-}
-ctx.stroke();
-ctx.strokeStyle = this._axisStylePaint(yAxis, "grid_color", this.theme.grid);
-ctx.lineWidth = Math.max(0.5, this._axisStyleNumber(yAxis, "grid_width", 1));
-ctx.globalAlpha = this._axisStyleNumber(yAxis, "grid_opacity", 1);
-ctx.setLineDash(this._axisGridDash(yAxis));
-ctx.beginPath();
-for (const v of (hideY ? [] : yt.ticks)) {
-const py = this._dataPx("y", v);
-if (!Number.isFinite(py)) continue;
-const y = yEdge(py);
-ctx.moveTo(p.x, y);
-ctx.lineTo(p.x + p.w, y);
-}
-ctx.stroke();
-ctx.globalAlpha = 1;
-ctx.setLineDash([]);
-const octx = this.overlay.getContext("2d");
-octx.setTransform(dpr, 0, 0, dpr, 0, 0);
-octx.clearRect(0, 0, this.size.w, this.size.h);
-this._drawAnnotationShapes(octx);
-if (updateLabels) {
-const rule = (styleAxis, left, top, w, h, colorKey = "axis_color") => {
-const d = document.createElement("div");
-d.style.cssText =
-`position:absolute;left:${left}px;top:${top}px;width:${w}px;height:${h}px;` +
-`background:${this._axisStylePaint(styleAxis, colorKey, this.theme.axis)};` +
-"pointer-events:none;";
-this.labels.appendChild(d);
-};
-const frameSides = Array.isArray(s.frame_sides)
-? s.frame_sides
-: [xAxis.side || "bottom", yAxis.side || "left"];
-if (!hideY) {
-const yWidth = Math.max(1, this._axisStyleNumber(yAxis, "axis_width", 1));
-if (frameSides.includes("left")) rule(yAxis, p.x, p.y, yWidth, p.h);
-if (frameSides.includes("right")) rule(yAxis, p.x + p.w - yWidth, p.y, yWidth, p.h);
-}
-if (!hideX) {
-const xHeight = Math.max(1, this._axisStyleNumber(xAxis, "axis_width", 1));
-if (frameSides.includes("top")) rule(xAxis, p.x, p.y, p.w, xHeight);
-if (frameSides.includes("bottom")) rule(xAxis, p.x, p.y + p.h - xHeight, p.w, xHeight);
-}
-for (const axis of extraXAxes) {
-if (this._axisTickLabelStrategy(axis) === "none") continue;
-const h = Math.max(1, this._axisStyleNumber(axis, "axis_width", 1));
-const y = axis.side === "top" ? p.y : p.y + p.h - h;
-rule(axis, p.x, y, p.w, h);
-}
-for (const axis of extraYAxes) {
-if (this._axisTickLabelStrategy(axis) === "none") continue;
-const w = Math.max(1, this._axisStyleNumber(axis, "axis_width", 1));
-const x = axis.side === "left" ? p.x : p.x + p.w - w;
-rule(axis, x, p.y, w, p.h);
-}
-const tickParts = (axis) => {
-const length = Math.max(0, this._axisStyleNumber(axis, "tick_length", 0));
-const width = Math.max(0.5, this._axisStyleNumber(axis, "tick_width", 1));
-const direction = String(this._axisStyleValue(axis, "tick_direction") || "out");
-if (direction === "in") return { inward: length, outward: 0, width };
-if (direction === "inout") return { inward: length / 2, outward: length / 2, width };
-return { inward: 0, outward: length, width };
-};
-if (!hideX) {
-const tick = tickParts(xAxis);
-const side = xAxis.side || "bottom";
-const edge = side === "top" ? p.y : p.y + p.h;
-for (const value of xt.ticks) {
-const x = this._dataPx("x", value);
-if (!Number.isFinite(x) || x < p.x - 1 || x > p.x + p.w + 1) continue;
-const top = side === "top" ? edge - tick.outward : edge - tick.inward;
-rule(xAxis, x - tick.width / 2, top, tick.width, tick.inward + tick.outward, "tick_color");
-}
-}
-if (!hideY) {
-const tick = tickParts(yAxis);
-const side = yAxis.side || "left";
-const edge = side === "right" ? p.x + p.w : p.x;
-for (const value of yt.ticks) {
-const y = this._dataPx("y", value);
-if (!Number.isFinite(y) || y < p.y - 1 || y > p.y + p.h + 1) continue;
-const left = side === "right" ? edge - tick.inward : edge - tick.outward;
-rule(yAxis, left, y - tick.width / 2, tick.inward + tick.outward, tick.width, "tick_color");
-}
-}
-for (const axis of extraXAxes) {
-if (this._axisTickLabelStrategy(axis) === "none") continue;
-const ticks = this._axisTicks(
-axis.id,
-this._axisTickTarget(axis.id, Math.max(3, p.w / (axis.kind === "time" ? 90 : 80))),
-);
-const tick = tickParts(axis);
-const side = axis.side || "bottom";
-const edge = side === "top" ? p.y : p.y + p.h;
-for (const value of ticks.ticks) {
-const x = this._dataPx(axis.id, value);
-if (!Number.isFinite(x) || x < p.x - 1 || x > p.x + p.w + 1) continue;
-const top = side === "top" ? edge - tick.outward : edge - tick.inward;
-rule(axis, x - tick.width / 2, top, tick.width, tick.inward + tick.outward, "tick_color");
-}
-}
-for (const axis of extraYAxes) {
-if (this._axisTickLabelStrategy(axis) === "none") continue;
-const ticks = this._axisTicks(
-axis.id,
-this._axisTickTarget(axis.id, Math.max(3, p.h / 45)),
-);
-const tick = tickParts(axis);
-const side = axis.side || "right";
-const edge = side === "right" ? p.x + p.w : p.x;
-for (const value of ticks.ticks) {
-const y = this._dataPx(axis.id, value);
-if (!Number.isFinite(y) || y < p.y - 1 || y > p.y + p.h + 1) continue;
-const left = side === "right" ? edge - tick.inward : edge - tick.outward;
-rule(axis, left, y - tick.width / 2, tick.inward + tick.outward, tick.width, "tick_color");
-}
-}
-}
-const label = (text, css, axis, kind = "tick", extraStyle = null) => {
-if (!updateLabels) return;
-const d = document.createElement("div");
-d.textContent = text;
-d.dataset.xyLabelKind = kind;
-d.dataset.xyAxis = axis && axis.id !== undefined ? String(axis.id) : "";
-d.dataset.xyAxisSide = axis && axis.side ? String(axis.side) : "";
-const colorKey = kind === "label"
-? "label_color"
-: (this._axisStyleValue(axis, "tick_label_color") !== undefined
-? "tick_label_color" : "tick_color");
-const sizeKey = kind === "label"
-? "label_size"
-: (this._axisStyleValue(axis, "tick_label_size") !== undefined
-? "tick_label_size" : "tick_size");
-let color = "";
-if (this._axisStyleValue(axis, colorKey) !== undefined) {
-color = `color:${this._axisStylePaint(axis, colorKey, this.theme.label)};`;
-}
-let size = "";
-if (this._axisStyleValue(axis, sizeKey) !== undefined) {
-size = `font-size:${Math.max(8, this._axisStyleNumber(axis, sizeKey, 11))}px;`;
-}
-d.style.cssText = `position:absolute;line-height:1.2;white-space:nowrap;${color}${size}${css}`;
-this._applySlot(d, kind === "label" ? "axis_title" : "tick_label");
-this._applyStyle(d, extraStyle);
-this.labels.appendChild(d);
-};
-const xLabelCandidates = [];
-for (const v of (xt.labels || xt.ticks)) {
-const px = this._dataPx("x", v);
-if (px < p.x - 1 || px > p.x + p.w + 1) continue;
-const text = this._axisTickText(xAxis, v, xt.step);
-xLabelCandidates.push({ pos: px, text });
-}
-const tickLabelSize = this._axisStyleNumber(
-xAxis,
-"tick_label_size",
-this._axisStyleNumber(xAxis, "tick_size", 11),
-);
-for (const item of this._layoutTickLabels(xAxis, "x", xLabelCandidates)) {
-const rowOffset = Number(item.row || 0) * (Math.max(8, tickLabelSize) + 4);
-const top = xAxis.side === "top" ? p.y - 18 - rowOffset : p.y + p.h + 6 + rowOffset;
-const placement = this._xTickLabelTransform(xAxis, item.angle);
-label(
-item.text,
-`left:${item.pos}px;top:${top}px;transform:${placement.transform};` +
-`transform-origin:${placement.origin};`,
-xAxis,
-);
-}
-for (const axis of extraXAxes) {
-const ticks = this._axisTicks(
-axis.id,
-this._axisTickTarget(axis.id, Math.max(3, p.w / (axis.kind === "time" ? 90 : 80))),
-);
-const labelCandidates = [];
-for (const value of (ticks.labels || ticks.ticks)) {
-const px = this._dataPx(axis.id, value);
-if (px < p.x - 1 || px > p.x + p.w + 1) continue;
-labelCandidates.push({ pos: px, text: this._axisTickText(axis, value, ticks.step) });
-}
-for (const item of this._layoutTickLabels(axis, "x", labelCandidates)) {
-const tickLabelSize = this._axisStyleNumber(
-axis,
-"tick_label_size",
-this._axisStyleNumber(axis, "tick_size", 11),
-);
-const rowOffset = Number(item.row || 0) * (Math.max(8, tickLabelSize) + 4);
-const top = axis.side === "top" ? p.y - 18 - rowOffset : p.y + p.h + 6 + rowOffset;
-const placement = this._xTickLabelTransform(axis, item.angle);
-label(
-item.text,
-`left:${item.pos}px;top:${top}px;transform:${placement.transform};` +
-`transform-origin:${placement.origin};`,
-axis,
-);
-}
-if (axis.label && this._axisTickLabelStrategy(axis) !== "none") {
-const top = axis.side === "top" ? p.y - 34 : p.y + p.h + 24;
-const fallbackCss =
-`left:${p.x + p.w / 2}px;top:${top}px;transform:translateX(-50%);font-weight:500;`;
-const placement = this._axisLabelCss(axis, "x", fallbackCss);
-label(axis.label, placement.css, axis, "label", placement.style);
-}
-}
-const yLabelCandidates = [];
-for (const v of (yt.labels || yt.ticks)) {
-const py = this._dataPx("y", v);
-if (py < p.y - 1 || py > p.y + p.h + 1) continue;
-const text = this._axisTickText(yAxis, v, yt.step);
-yLabelCandidates.push({ pos: py, text });
-}
-const yLabelCss = (axis, onRight, item) => {
-const pin = onRight ? p.x + p.w + 8 : p.x - 8;
-const anchor = this._axisTickLabelAnchor(axis) ?? (onRight ? "start" : "end");
-const shift = anchor === "end" ? "-100%" : anchor === "start" ? "0%" : "-50%";
-const originX = anchor === "end" ? "right" : anchor === "start" ? "left" : "center";
-return `left:${pin}px;top:${item.pos}px;` +
-`transform:translate(${shift},-50%) rotate(${Number(item.angle || 0)}deg);` +
-`transform-origin:${originX} center;`;
-};
-for (const item of this._layoutTickLabels(yAxis, "y", yLabelCandidates)) {
-label(item.text, yLabelCss(yAxis, yAxis.side === "right", item), yAxis);
-}
-for (const axis of extraYAxes) {
-const ticks = this._axisTicks(axis.id, this._axisTickTarget(axis.id, Math.max(3, p.h / 45)));
-const labelCandidates = [];
-for (const v of (ticks.labels || ticks.ticks)) {
-const py = this._dataPx(axis.id, v);
-if (py < p.y - 1 || py > p.y + p.h + 1) continue;
-const text = this._axisTickText(axis, v, ticks.step);
-labelCandidates.push({ pos: py, text });
-}
-for (const item of this._layoutTickLabels(axis, "y", labelCandidates)) {
-label(item.text, yLabelCss(axis, axis.side !== "left", item), axis);
-}
-if (axis.label && this._axisTickLabelStrategy(axis) !== "none") {
-const fallbackCss = axis.side === "left"
-? `left:10px;top:${p.y + p.h / 2}px;transform:rotate(-90deg) translateX(50%);transform-origin:left;font-weight:500;`
-: `left:${p.x + p.w + 40}px;top:${p.y + p.h / 2}px;transform:rotate(90deg) translateX(-50%);transform-origin:left;font-weight:500;`;
-const placement = this._axisLabelCss(axis, "y", fallbackCss);
-label(axis.label, placement.css, axis, "label", placement.style);
-}
-}
-if (s.x_axis.label && !hideX) {
-const top = xAxis.side === "top" ? p.y - 34 : p.y + p.h + 24;
-const fallbackCss = `left:${p.x + p.w / 2}px;top:${top}px;transform:translateX(-50%);font-weight:500;`;
-const placement = this._axisLabelCss(xAxis, "x", fallbackCss);
-label(s.x_axis.label, placement.css, xAxis, "label", placement.style);
-}
-if (s.y_axis.label && !hideY) {
-const fallbackCss = yAxis.side === "right"
-? `left:${p.x + p.w + 40}px;top:${p.y + p.h / 2}px;transform:rotate(90deg) translateX(-50%);transform-origin:left;font-weight:500;`
-: `left:10px;top:${p.y + p.h / 2}px;transform:rotate(-90deg) translateX(50%);transform-origin:left;font-weight:500;`;
-const placement = this._axisLabelCss(yAxis, "y", fallbackCss);
-label(s.y_axis.label, placement.css, yAxis, "label", placement.style);
-}
-this._drawAnnotationLabels(updateLabels);
-}
-_interactionTransitionActive() {
-const activeStart = (v) => v !== undefined && v !== null;
-return !!this._viewAnim || this.gpuTraces.some((g) =>
-activeStart(g._densityFadeStart) ||
-activeStart(g._densitySwitchFadeStart) ||
-activeStart(g._drillFadeStart) ||
-activeStart(g._drillExitFadeStart) ||
-!!g._densityNormAnim);
-}
-_renderPick() {
-const gl = this.gl;
-if (this._pickW !== this.canvas.width || this._pickH !== this.canvas.height) {
-this._allocPickTex();
-}
-gl.bindFramebuffer(gl.FRAMEBUFFER, this.pickFbo);
-gl.viewport(0, 0, this.canvas.width, this.canvas.height);
-gl.disable(gl.BLEND);
-gl.clearColor(0, 0, 0, 0);
-gl.clear(gl.COLOR_BUFFER_BIT);
-const { x0, x1, y0, y1 } = this.view;
-const prog = this.pickProg;
-gl.useProgram(prog);
-const u = (n) => uniformOf(gl, prog, n);
-gl.uniform1f(u("u_dpr"), this.dpr);
-let base = 1;
-for (const g of this.gpuTraces) {
-const pg = g.tier === "density"
-? (g.drill && !g._drillDying && this._viewInside(g.drill.win) ? g.drill : null)
-: (markOf(g.trace.kind).pointPick ? g : null);
-if (!pg || !pg.n || base + pg.n > 0x7fffffff) {
-g.pickBase = -1;
-g.pickCount = 0;
-continue;
-}
-const [px0, px1] = this._axisRange(pg.xAxis || g.xAxis);
-const [py0, py1] = this._axisRange(pg.yAxis || g.yAxis);
-const xm = this._map(pg.xMeta, px0, px1, pg.xAxis || g.xAxis);
-const ym = this._map(pg.yMeta, py0, py1, pg.yAxis || g.yAxis);
-gl.uniform2f(u("u_xmap"), xm[0], xm[1]);
-gl.uniform2f(u("u_ymap"), ym[0], ym[1]);
-this._setAxisUniforms(prog, "u_x", pg.xMeta, pg.xAxis || g.xAxis);
-this._setAxisUniforms(prog, "u_y", pg.yMeta, pg.yAxis || g.yAxis);
-gl.uniform1f(u("u_size"), pg.size);
-gl.uniform1i(u("u_sizeMode"), pg.sizeMode);
-gl.uniform2f(u("u_sizeRange"), pg.sizeRange[0], pg.sizeRange[1]);
-const transitionOn = !!(pg._transitionPrevXBuf && pg._transitionPrevYBuf);
-gl.uniform1i(u("u_transitionActive"), transitionOn ? 1 : 0);
-gl.uniform1f(u("u_transitionProgress"), pg._transitionPositionProgress ?? 1);
-gl.uniform1i(u("u_pick_base"), base);
-g.pickBase = base;
-g.pickCount = pg.n;
-const sizeOn = pg.sizeMode === 1 && pg.sBuf;
-this._bindVao(
-pg,
-"pick",
-[pg.xBuf._fcId, pg.yBuf._fcId, sizeOn ? pg.sBuf._fcId : 0,
-transitionOn ? pg._transitionPrevXBuf._fcId : 0,
-transitionOn ? pg._transitionPrevYBuf._fcId : 0],
-() => {
-this._vaoAttr(ATTR_SLOTS.ax, pg.xBuf, 0, 0);
-this._vaoAttr(ATTR_SLOTS.ay, pg.yBuf, 0, 0);
-if (sizeOn) this._vaoAttr(ATTR_SLOTS.a_sval, pg.sBuf, 0, 0);
-if (transitionOn) {
-this._vaoAttr(ATTR_SLOTS.a_prevx, pg._transitionPrevXBuf, 0, 0);
-this._vaoAttr(ATTR_SLOTS.a_prevy, pg._transitionPrevYBuf, 0, 0);
-}
-}
-);
-if (!sizeOn) gl.vertexAttrib1f(ATTR_SLOTS.a_sval, 0.5);
-gl.drawArrays(gl.POINTS, 0, pg.n);
-base += pg.n;
-}
-gl.enable(gl.BLEND);
-gl.bindFramebuffer(gl.FRAMEBUFFER, null);
-this._pickDirty = false;
-}
-_pickAt(cssX, cssY) {
-if (
-!this._pickable ||
-this._glLost ||
-!this.gl ||
-this.gl.isContextLost()
-) return null;
-if (this._pickDirty) {
-try {
-this._renderPick();
-} catch (err) {
-if (!this.gl || this.gl.isContextLost()) return null;
-throw err;
-}
-}
-const gl = this.gl;
-const px = Math.round(cssX * this.dpr);
-const py = Math.round((this.plot.h - cssY) * this.dpr);
-if (px < 0 || py < 0 || px >= this.canvas.width || py >= this.canvas.height) return null;
-const buf = new Uint8Array(4);
-gl.bindFramebuffer(gl.FRAMEBUFFER, this.pickFbo);
-gl.readPixels(px, py, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, buf);
-gl.bindFramebuffer(gl.FRAMEBUFFER, null);
-const id = buf[0] + buf[1] * 0x100 + buf[2] * 0x10000 + buf[3] * 0x1000000;
-if (id === 0) return null;
-const g = this.gpuTraces.find(
-(t) => t.pickBase > 0 && id >= t.pickBase && id < t.pickBase + t.pickCount
-);
-if (!g) return null;
-return { trace: g.trace.id, index: id - g.pickBase, g };
-}
-_decodeValue(values, meta, index) {
-if (!values || !meta || index < 0 || index >= values.length) return NaN;
-return values[index] / (meta.scale || 1) + meta.offset;
-}
-_dataFromCanvas(cssX, cssY, xAxisId = "x", yAxisId = "y") {
-const [x0, x1] = this._axisRange(xAxisId);
-const [y0, y1] = this._axisRange(yAxisId);
-const xAxis = this._axis(xAxisId);
-const yAxis = this._axis(yAxisId);
-const cx0 = this._axisCoord(xAxis, x0);
-const cx1 = this._axisCoord(xAxis, x1);
-const cy0 = this._axisCoord(yAxis, y0);
-const cy1 = this._axisCoord(yAxis, y1);
-if (![cx0, cx1, cy0, cy1].every(Number.isFinite)) return [NaN, NaN];
-return [
-this._axisValue(xAxis, cx0 + (cssX / this.plot.w) * (cx1 - cx0)),
-this._axisValue(yAxis, cy1 - (cssY / this.plot.h) * (cy1 - cy0)),
-];
-}
-_nearestCpuIndex(g, dataX) {
-const cpu = g && g._cpu;
-if (!cpu || !cpu.x || !cpu.x.length) return -1;
-const xMeta = cpu.xMeta || g.xMeta;
-const axis = this._axis(g.xAxis);
-const target = this._axisCoord(axis, dataX);
-let best = -1;
-let bestDist = Infinity;
-const limit = Math.min(cpu.x.length, g.n || cpu.x.length);
-for (let i = 0; i < limit; i++) {
-const starts = g._transitionPrevXValues;
-const progress = g._transitionPositionProgress;
-const xEncoded = starts && Number.isFinite(progress)
-? starts[i] + (cpu.x[i] - starts[i]) * progress
-: cpu.x[i];
-const x = xEncoded / (xMeta.scale || 1) + xMeta.offset;
-const d = Math.abs(this._axisCoord(axis, x) - target);
-if (d < bestDist) {
-bestDist = d;
-best = i;
-}
-}
-return best;
-}
-_hoverAt(cssX, cssY) {
-const maxPx = 12;
-let best = null;
-for (const g of this.gpuTraces) {
-if (g.tier === "density") continue;
-const [dataX, dataY] = this._dataFromCanvas(cssX, cssY, g.xAxis, g.yAxis);
-if (!Number.isFinite(dataX) || !Number.isFinite(dataY)) continue;
-if (g.heatmap && g._cpuHeatmap) {
-const hit = this._heatmapHover(g, dataX, dataY);
-if (hit) return hit;
-continue;
-}
-if (g.trace.bar && g._cpu) {
-const hit = this._barHover(g, dataX, dataY);
-if (hit) return hit;
-continue;
-}
-if (g._cpuRect) {
-const hit = this._rectHover(g, dataX, dataY);
-if (hit) return hit;
-continue;
-}
-if (!g._cpu || !g._cpu.x || !g._cpu.y) continue;
-const idx = this._nearestCpuIndex(g, dataX);
-if (idx < 0) continue;
-const progress = g._transitionPositionProgress;
-const xEncoded = g._transitionPrevXValues && Number.isFinite(progress)
-? g._transitionPrevXValues[idx] + (g._cpu.x[idx] - g._transitionPrevXValues[idx]) * progress
-: g._cpu.x[idx];
-const yEncoded = g._transitionPrevYValues && Number.isFinite(progress)
-? g._transitionPrevYValues[idx] + (g._cpu.y[idx] - g._transitionPrevYValues[idx]) * progress
-: g._cpu.y[idx];
-const x = xEncoded / (g._cpu.xMeta.scale || 1) + g._cpu.xMeta.offset;
-const y = yEncoded / (g._cpu.yMeta.scale || 1) + g._cpu.yMeta.offset;
-const px = this._dataPx(g.xAxis, x) - this.plot.x;
-const py = this._dataPx(g.yAxis, y) - this.plot.y;
-const dist = Math.hypot(px - cssX, py - cssY);
-if (dist <= maxPx && (!best || dist < best.dist)) {
-best = { trace: g.trace.id, index: idx, g, dist, synthetic: true };
-}
-}
-return best;
-}
-_barHover(g, dataX, dataY) {
-const cpu = g._cpu;
-const horizontal = g.orientation === 1;
-const limit = Math.min(cpu.x.length, cpu.y.length, g.n || cpu.x.length);
-for (let i = 0; i < limit; i++) {
-const x = this._decodeValue(cpu.x, cpu.xMeta, i);
-const y = this._decodeValue(cpu.y, cpu.yMeta, i);
-const value0 = g.value0Mode === 1 && cpu.value0
-? this._decodeValue(cpu.value0, horizontal ? g.value0Meta : g.value0Meta, i)
-: g.value0Const;
-const lo = Math.min(value0 ?? 0, horizontal ? x : y);
-const hi = Math.max(value0 ?? 0, horizontal ? x : y);
-if (horizontal) {
-if (dataX >= lo && dataX <= hi && Math.abs(dataY - y) <= g.width / 2) {
-return { trace: g.trace.id, index: i, g, synthetic: true };
-}
-} else if (Math.abs(dataX - x) <= g.width / 2 && dataY >= lo && dataY <= hi) {
-return { trace: g.trace.id, index: i, g, synthetic: true };
-}
-}
-return null;
-}
-_rectHover(g, dataX, dataY) {
-const r = g._cpuRect;
-const limit = Math.min(r.x0.length, r.x1.length, r.y0.length, r.y1.length, g.n || r.x0.length);
-for (let i = 0; i < limit; i++) {
-const x0 = this._decodeValue(r.x0, r.x0Meta, i);
-const x1 = this._decodeValue(r.x1, r.x1Meta, i);
-const y0 = this._decodeValue(r.y0, r.y0Meta, i);
-const y1 = this._decodeValue(r.y1, r.y1Meta, i);
-if (
-dataX >= Math.min(x0, x1) && dataX <= Math.max(x0, x1) &&
-dataY >= Math.min(y0, y1) && dataY <= Math.max(y0, y1)
-) {
-return { trace: g.trace.id, index: i, g, synthetic: true };
-}
-}
-return null;
-}
-_heatmapHover(g, dataX, dataY) {
-const h = g.heatmap;
-if (!h || !g._cpuHeatmap) return null;
-const [x0, x1] = h.xRange;
-const [y0, y1] = h.yRange;
-if (dataX < x0 || dataX > x1 || dataY < y0 || dataY > y1) return null;
-const [ax0, ax1] = this._axisRange(g.xAxis) ?? [this.view.x0, this.view.x1];
-const [ay0, ay1] = this._axisRange(g.yAxis) ?? [this.view.y0, this.view.y1];
-const fx = ((ax0 ?? this.view.x0) > (ax1 ?? this.view.x1)) ? (x1 - dataX) : (dataX - x0);
-const fy = ((ay0 ?? this.view.y0) > (ay1 ?? this.view.y1)) ? (y1 - dataY) : (dataY - y0);
-const col = Math.min(h.w - 1, Math.max(0, Math.floor((fx / (x1 - x0)) * h.w)));
-const row = Math.min(h.h - 1, Math.max(0, Math.floor((fy / (y1 - y0)) * h.h)));
-return { trace: g.trace.id, index: row * h.w + col, g, heatmap: { row, col }, synthetic: true };
-}
-_drawKeepPick() {
-this.draw(true);
-}
-_hover(e) {
-this._a11yKeyboardReadout = null;
-if (this._interactionTransitionActive()) {
-const hadHover = this._hoverId !== -1;
-this._hoverId = -1;
-this._hoverTarget = null;
-this._lastHoverXY = null;
-this._pickSeq = (this._pickSeq || 0) + 1;
-this._hideTooltip();
-if (hadHover) this.draw();
-return;
-}
-const rect = this.canvas.getBoundingClientRect();
-const cssX = e.clientX - rect.left;
-const cssY = e.clientY - rect.top;
-const hit = this._pickAt(cssX, cssY) || this._hoverAt(cssX, cssY);
-if (!hit) {
-const hadHover = this._hoverId !== -1;
-this._hoverId = -1;
-this._hoverTarget = null;
-this._lastHoverXY = null;
-this._pickSeq = (this._pickSeq || 0) + 1;
-this._hideTooltip();
-if (hadHover) this._drawKeepPick();
-return;
-}
-const id = hit.trace * 1e9 + hit.index;
-this._lastHoverXY = { clientX: e.clientX, clientY: e.clientY };
-if (id === this._hoverId) {
-if (!this._tooltipAnchor) this._renderTooltip(this._lastRow, e.clientX, e.clientY);
-return;
-}
-this._hoverId = id;
-this._hoverTarget = hit;
-this._showTooltip(hit, e.clientX, e.clientY);
-this._drawKeepPick();
-}
-_asF32(b) {
-if (b instanceof ArrayBuffer) return new Float32Array(b);
-if (b.byteOffset % 4 === 0) {
-return new Float32Array(b.buffer, b.byteOffset, Math.floor(b.byteLength / 4));
-}
-return new Float32Array(b.buffer.slice(b.byteOffset, b.byteOffset + b.byteLength));
-}
-_asU8(b) {
-if (b instanceof ArrayBuffer) return new Uint8Array(b);
-return new Uint8Array(b.buffer, b.byteOffset, b.byteLength);
-}
-_asU32(b) {
-if (b instanceof ArrayBuffer) return new Uint32Array(b);
-if (b.byteOffset % 4 === 0) {
-return new Uint32Array(b.buffer, b.byteOffset, Math.floor(b.byteLength / 4));
-}
-return new Uint32Array(b.buffer.slice(b.byteOffset, b.byteOffset + b.byteLength));
-}
-_applyTheme() {
-this.theme = readTheme(this.root);
-this._themeStale = !this.root.isConnected;
-for (const g of this.gpuTraces) {
-markOf(g.trace.kind).refreshColor?.(this, g);
-}
-}
-refreshTheme() {
-if (this._destroyed) return;
-this._applyTheme();
-this.draw();
-}
-_healStaleTheme() {
-if (!this._themeStale || !this.root.isConnected) return false;
-this._applyTheme();
-return true;
-}
-destroy() {
-if (this._destroyed) return;
-this._destroyed = true;
-if (this._dataAnim) {
-this._emitAnimationLifecycle?.("end", this._dataAnim.phase, { cancelled: true });
-}
-XY_CONTEXT_GOVERNOR.unregister(this);
-this._ctxIo?.disconnect();
-this._ctxIo = null;
-clearTimeout(this._ctxRecoveryTimer);
-this._ctxRecoveryTimer = null;
-clearTimeout(this._rebinTimer);
-if (this._rebinWorker) {
-this._rebinWorker.terminate();
-if (this._rebinWorker._fcUrl) URL.revokeObjectURL(this._rebinWorker._fcUrl);
-this._rebinWorker = null;
-}
-this._ro?.disconnect();
-this._io?.disconnect();
-this._io = null;
-this._themeWatch?.removeEventListener?.("change", this._onScheme);
-this._themeMutationObserver?.disconnect();
-this._themeMutationObserver = null;
-this._dprMq?.removeEventListener?.("change", this._onDprChange);
-this._dprMq = null;
-this._unsubscribeComm?.();
-this._unsubscribeComm = null;
-for (const { target, type, handler, options } of this._listeners.splice(0)) {
-target.removeEventListener(type, handler, options);
-}
-clearTimeout(this._viewTimer);
-this._viewTimer = null;
-if (this._viewEventRaf) cancelAnimationFrame(this._viewEventRaf);
-this._viewEventRaf = null;
-if (this._wheelZoomRaf) cancelAnimationFrame(this._wheelZoomRaf);
-this._wheelZoomRaf = null;
-this._pendingWheelZoom = null;
-clearTimeout(this._wheelZoomEndTimer);
-this._wheelZoomEndTimer = null;
-this._wheelGesture = null;
-this._linkChannel?.close?.();
-this._linkChannel = null;
-if (this._raf) cancelAnimationFrame(this._raf);
-this._raf = null;
-if (this._resizeRaf) cancelAnimationFrame(this._resizeRaf);
-this._resizeRaf = null;
-this._pendingResize = null;
-this._resizeNeedsMeasure = false;
-this._cancelViewAnimation();
-if (this._dataAnimRaf) cancelAnimationFrame(this._dataAnimRaf);
-this._dataAnimRaf = null;
-this._dataAnim = null;
-this._destroyTransitionOldTraces?.();
-this._destroyGlResources();
-const loseExt = this.gl && this.gl.getExtension("WEBGL_lose_context");
-if (loseExt) loseExt.loseContext();
-this.gl = null;
-this.root.remove();
-}
-_deleteBuffers(obj, names) {
-const gl = this.gl;
-if (!gl || !obj) return;
-const seen = new Set();
-for (const name of names) {
-const buf = obj[name];
-if (buf && !seen.has(buf)) {
-seen.add(buf);
-gl.deleteBuffer(buf);
-}
-obj[name] = null;
-}
-}
-_destroyTraceResources(g, texSeen) {
-if (!g) return;
-this._destroyDensitySample(g);
-this._deleteVaos(g);
-this._deleteVaos(g.drill);
-this._deleteBuffers(g, [
-"xBuf", "yBuf", "cBuf", "sBuf", "selBuf", "baseBuf",
-"x0Buf", "x1Buf", "x2Buf", "y0Buf", "y1Buf", "y2Buf",
-"posBuf", "value1Buf", "value0Buf",
-"_transitionPrevXBuf", "_transitionPrevYBuf",
-"_transitionPrevPosBuf", "_transitionPrevValue1Buf", "_transitionPrevValue0Buf",
-]);
-this._deleteBuffers(g.drill, ["xBuf", "yBuf", "cBuf", "sBuf", "selBuf", "dBuf"]);
-const textures = [];
-if (g.heatmap) textures.push(g.heatmap.tex);
-for (const d of g.densityCache || []) textures.push(d && d.tex);
-if (g.density) textures.push(g.density.tex);
-if (g._shownDensity) textures.push(g._shownDensity.tex);
-for (const tex of textures) {
-if (tex && !texSeen.has(tex)) {
-texSeen.add(tex);
-this.gl.deleteTexture(tex);
-}
-}
-g.drill = null;
-g.density = null;
-g._shownDensity = null;
-g.densityCache = [];
-g.heatmap = null;
-g._cpu = null;
-}
-_destroyGlResources() {
-const gl = this.gl;
-if (!gl) return;
-const texSeen = new Set();
-for (const g of this.gpuTraces || []) this._destroyTraceResources(g, texSeen);
-for (const tex of this._lutCache.values()) {
-if (tex && !texSeen.has(tex)) {
-texSeen.add(tex);
-gl.deleteTexture(tex);
-}
-}
-this._lutCache.clear();
-if (this.pickFbo) gl.deleteFramebuffer(this.pickFbo);
-if (this.pickTex && !texSeen.has(this.pickTex)) gl.deleteTexture(this.pickTex);
-this.pickFbo = null;
-this.pickTex = null;
-if (this.quad) gl.deleteBuffer(this.quad);
-this.quad = null;
-if (this.quadVao) gl.deleteVertexArray(this.quadVao);
-this.quadVao = null;
-for (const p of this._progCache ? this._progCache.values() : []) {
-if (p) gl.deleteProgram(p);
-}
-if (this._progCache) this._progCache.clear();
-this._glPrograms = this._progCache;
-this.gpuTraces = [];
-}
-}
-const XY_ANNOTATION_SHAPE_STYLE_KEYS = new Set([
-"color",
-"label_color",
-"label_opacity",
-"opacity",
-"width",
-"head_size",
-"head_style",
-"tail_style",
-"shaft_width_start",
-"shaft_width_end",
-"curve",
-"angle_a",
-"angle_b",
-"gap_start",
-"gap_end",
-"start_offset",
-"label_clear",
-"dash",
-"span_start",
-"span_end",
-"size",
-"symbol",
-"stroke_color",
-"stroke_width",
-"coordinate_space",
-]);
-function xyLabelClearExit(style, tangent) {
-if (typeof style.label_clear !== "string") return 0;
-const parts = style.label_clear.split(",").map(Number);
-if (parts.length !== 4 || parts.some((p) => !Number.isFinite(p) || p < 0)) return 0;
-const [left, right, up, down] = parts;
-const [tx, ty] = tangent;
-const exitX = tx > 1e-9 ? right / tx : tx < -1e-9 ? left / -tx : Infinity;
-const exitY = ty > 1e-9 ? down / ty : ty < -1e-9 ? up / -ty : Infinity;
-const exit = Math.min(exitX, exitY);
-return Number.isFinite(exit) ? exit : 0;
-}
-function xyArrowGeometry(x0, y0, x1, y1, style) {
-const num = (v) => (Number.isFinite(Number(v)) ? Number(v) : null);
-if (typeof style.start_offset === "string") {
-const offset = style.start_offset.split(",").map(Number);
-if (offset.length === 2 && offset.every(Number.isFinite)) {
-x0 += offset[0];
-y0 += offset[1];
-}
-}
-const angleA = num(style.angle_a);
-const angleB = num(style.angle_b);
-const curve = num(style.curve);
-let cx = null;
-let cy = null;
-if (angleA !== null && angleB !== null) {
-const a = (-angleA * Math.PI) / 180;
-const b = (-angleB * Math.PI) / 180;
-const denom = Math.cos(a) * Math.sin(b) - Math.sin(a) * Math.cos(b);
-if (Math.abs(denom) > 1e-6) {
-const t = ((x1 - x0) * Math.sin(b) - (y1 - y0) * Math.cos(b)) / denom;
-cx = x0 + t * Math.cos(a);
-cy = y0 + t * Math.sin(a);
-}
-} else if (curve) {
-const dx = x1 - x0;
-const dy = y1 - y0;
-cx = (x0 + x1) / 2 + curve * dy;
-cy = (y0 + y1) / 2 - curve * dx;
-}
-const toward = (px, py, qx, qy) => {
-const d = Math.hypot(qx - px, qy - py) || 1;
-return [(qx - px) / d, (qy - py) / d];
-};
-const t0 = cx === null ? toward(x0, y0, x1, y1) : toward(x0, y0, cx, cy);
-const t1 = cx === null ? toward(x1, y1, x0, y0) : toward(x1, y1, cx, cy);
-const gapStart = Math.max(0, num(style.gap_start) || 0, xyLabelClearExit(style, t0));
-const gapEnd = Math.max(0, num(style.gap_end) || 0);
-const span = Math.hypot(x1 - x0, y1 - y0);
-const trim = gapStart + gapEnd < span * 0.9;
-const p0 = trim ? [x0 + gapStart * t0[0], y0 + gapStart * t0[1]] : [x0, y0];
-const p1 = trim ? [x1 + gapEnd * t1[0], y1 + gapEnd * t1[1]] : [x1, y1];
-const dir1 = cx === null ? toward(p0[0], p0[1], p1[0], p1[1]) : toward(cx, cy, p1[0], p1[1]);
-const dir0 = cx === null ? toward(p1[0], p1[1], p0[0], p0[1]) : toward(cx, cy, p0[0], p0[1]);
-return { p0, p1, control: cx === null ? null : [cx, cy], dir0, dir1 };
-}
-function xyArrowShaftPoints(geom, samples = 24) {
-const [x0, y0] = geom.p0;
-const [x1, y1] = geom.p1;
-if (!geom.control) return [[x0, y0], [x1, y1]];
-const [cx, cy] = geom.control;
-const points = [];
-for (let i = 0; i <= samples; i++) {
-const t = i / samples;
-const u = 1 - t;
-points.push([u * u * x0 + 2 * u * t * cx + t * t * x1, u * u * y0 + 2 * u * t * cy + t * t * y1]);
-}
-return points;
-}
-function xyTrimPolylineEnd(points, trim) {
-if (!(trim > 0) || points.length < 2) return points;
-const out = points.slice();
-let remaining = trim;
-while (out.length >= 2) {
-const [ax, ay] = out[out.length - 2];
-const [bx, by] = out[out.length - 1];
-const seg = Math.hypot(bx - ax, by - ay);
-if (seg > remaining) {
-const t = 1 - remaining / seg;
-out[out.length - 1] = [ax + t * (bx - ax), ay + t * (by - ay)];
-return out;
-}
-remaining -= seg;
-out.pop();
-}
-return out;
-}
-function xyTaperPolygon(points, w0, w1) {
-const left = [];
-const right = [];
-const count = points.length;
-for (let i = 0; i < count; i++) {
-const [px, py] = points[i];
-const [ax, ay] = points[Math.max(0, i - 1)];
-const [bx, by] = points[Math.min(count - 1, i + 1)];
-const d = Math.hypot(bx - ax, by - ay) || 1;
-const nx = -(by - ay) / d;
-const ny = (bx - ax) / d;
-const half = (w0 + (w1 - w0) * (i / Math.max(1, count - 1))) / 2;
-left.push([px + half * nx, py + half * ny]);
-right.push([px - half * nx, py - half * ny]);
-}
-return left.concat(right.reverse());
-}
-Object.assign(ChartView.prototype, {
-_annotationPaint(style, fallback) {
-return safeCssPaint(this.root, style && style.color, fallback);
-},
-_annotationLabelPaint(style, fallback) {
-return safeCssPaint(this.root, style && (style.label_color || style.color), fallback);
-},
-_annotationStrokePaint(style, fallback) {
-return safeCssPaint(this.root, style && style.stroke_color, fallback);
-},
-_drawAnnotationMarker(ctx, x, y, style, ann) {
-if (!Number.isFinite(x) || !Number.isFinite(y)) return;
-const r = Math.max(1, this._styleNumber(style, "size", Number(ann.size) || 8) / 2);
-const symbol = ["circle", "square", "diamond", "cross"].includes(ann.symbol) ? ann.symbol : "circle";
-ctx.save();
-ctx.globalAlpha = this._styleNumber(style, "opacity", 1);
-ctx.fillStyle = this._annotationPaint(style, [0.15, 0.39, 0.92, 1]);
-ctx.strokeStyle = symbol === "cross"
-? this._annotationPaint(style, [0.15, 0.39, 0.92, 1])
-: this._annotationStrokePaint(style, [1, 1, 1, 1]);
-ctx.lineWidth = Math.max(0, this._styleNumber(style, "stroke_width", 1.5));
-ctx.beginPath();
-if (symbol === "square") {
-ctx.rect(x - r, y - r, r * 2, r * 2);
-} else if (symbol === "diamond") {
-ctx.moveTo(x, y - r);
-ctx.lineTo(x + r, y);
-ctx.lineTo(x, y + r);
-ctx.lineTo(x - r, y);
-ctx.closePath();
-} else if (symbol === "cross") {
-ctx.moveTo(x - r, y);
-ctx.lineTo(x + r, y);
-ctx.moveTo(x, y - r);
-ctx.lineTo(x, y + r);
-ctx.stroke();
-ctx.restore();
-return;
-} else {
-ctx.arc(x, y, r, 0, Math.PI * 2);
-}
-ctx.fill();
-if (ctx.lineWidth > 0) ctx.stroke();
-ctx.restore();
-},
-_drawArrowLine(ctx, x0, y0, x1, y1, style) {
-if (![x0, y0, x1, y1].every(Number.isFinite)) return;
-const geom = xyArrowGeometry(x0, y0, x1, y1, style);
-ctx.save();
-ctx.globalAlpha = this._styleNumber(style, "opacity", 1);
-ctx.strokeStyle = this._annotationPaint(style, [0.4, 0.44, 0.52, 1]);
-ctx.fillStyle = ctx.strokeStyle;
-ctx.lineWidth = Math.max(0.5, this._styleNumber(style, "width", 1.5));
-ctx.setLineDash(Array.isArray(style.dash) ? style.dash :
-(typeof style.dash === "string" ? style.dash.split(",").map(Number) : []));
-const w0 = Number(style.shaft_width_start);
-const w1 = Number(style.shaft_width_end);
-const headStyle = style.head_style || "triangle";
-const head = Math.max(4, this._styleNumber(style, "head_size", 8));
-if (Number.isFinite(w0) || Number.isFinite(w1)) {
-let points = xyArrowShaftPoints(geom);
-if (headStyle === "triangle") {
-points = xyTrimPolylineEnd(points, head * Math.cos(Math.PI / 6));
-}
-const polygon = xyTaperPolygon(
-points,
-Number.isFinite(w0) ? w0 : 1,
-Number.isFinite(w1) ? w1 : 1
-);
-ctx.beginPath();
-ctx.moveTo(polygon[0][0], polygon[0][1]);
-for (let i = 1; i < polygon.length; i++) ctx.lineTo(polygon[i][0], polygon[i][1]);
-ctx.closePath();
-ctx.fill();
-} else {
-ctx.beginPath();
-ctx.moveTo(geom.p0[0], geom.p0[1]);
-if (geom.control) ctx.quadraticCurveTo(geom.control[0], geom.control[1], geom.p1[0], geom.p1[1]);
-else ctx.lineTo(geom.p1[0], geom.p1[1]);
-ctx.stroke();
-}
-this._drawArrowEnd(ctx, geom.p1, geom.dir1, headStyle, head);
-this._drawArrowEnd(ctx, geom.p0, geom.dir0, style.tail_style || "none", head);
-ctx.restore();
-},
-_drawArrowEnd(ctx, point, dir, endStyle, head) {
-if (endStyle === "none") return;
-const [px, py] = point;
-const angle = Math.atan2(dir[1], dir[0]);
-ctx.beginPath();
-if (endStyle === "bar") {
-ctx.moveTo(px - (head / 2) * Math.sin(angle), py + (head / 2) * Math.cos(angle));
-ctx.lineTo(px + (head / 2) * Math.sin(angle), py - (head / 2) * Math.cos(angle));
-ctx.stroke();
-return;
-}
-const wing = (side) => [
-px - head * Math.cos(angle - side * Math.PI / 6),
-py - head * Math.sin(angle - side * Math.PI / 6),
-];
-const [ax, ay] = wing(1);
-const [bx, by] = wing(-1);
-if (endStyle === "v") {
-ctx.moveTo(ax, ay);
-ctx.lineTo(px, py);
-ctx.lineTo(bx, by);
-ctx.stroke();
-return;
-}
-ctx.moveTo(px, py);
-ctx.lineTo(ax, ay);
-ctx.lineTo(bx, by);
-ctx.closePath();
-ctx.fill();
-},
-_drawAnnotationShapes(ctx) {
-const annotations = Array.isArray(this.spec.annotations) ? this.spec.annotations : [];
-if (!annotations.length) return;
-const p = this.plot;
-ctx.save();
-ctx.beginPath();
-ctx.rect(p.x, p.y, p.w, p.h);
-ctx.clip();
-for (const ann of annotations) {
-const style = ann && typeof ann.style === "object" ? ann.style : {};
-if (ann.kind === "band") {
-const vertical = ann.axis === "x";
-const a = vertical ? this._dataPxX(Number(ann.start)) : this._dataPxY(Number(ann.start));
-const b = vertical ? this._dataPxX(Number(ann.end)) : this._dataPxY(Number(ann.end));
-if (!Number.isFinite(a) || !Number.isFinite(b)) continue;
-const lo = Math.max(vertical ? p.x : p.y, Math.min(a, b));
-const hi = Math.min(vertical ? p.x + p.w : p.y + p.h, Math.max(a, b));
-if (hi <= lo) continue;
-ctx.save();
-ctx.globalAlpha = this._styleNumber(style, "opacity", 0.14);
-ctx.fillStyle = this._annotationPaint(style, [0.39, 0.45, 0.55, 1]);
-const start = Math.max(0, Math.min(1, Number(style.span_start) || 0));
-const rawEnd = style.span_end === undefined ? 1 : Number(style.span_end);
-const end = Math.max(start, Math.min(1, Number.isFinite(rawEnd) ? rawEnd : 1));
-if (vertical) ctx.fillRect(lo, p.y + (1 - end) * p.h, hi - lo, (end - start) * p.h);
-else ctx.fillRect(p.x + start * p.w, lo, (end - start) * p.w, hi - lo);
-ctx.restore();
-} else if (ann.kind === "rule") {
-const vertical = ann.axis === "x";
-const pos = vertical ? this._dataPxX(Number(ann.value)) : this._dataPxY(Number(ann.value));
-if (!Number.isFinite(pos)) continue;
-if (vertical && (pos < p.x - 1 || pos > p.x + p.w + 1)) continue;
-if (!vertical && (pos < p.y - 1 || pos > p.y + p.h + 1)) continue;
-const crisp = Math.round(pos) + 0.5;
-ctx.save();
-ctx.globalAlpha = this._styleNumber(style, "opacity", 1);
-ctx.strokeStyle = this._annotationPaint(style, [0.4, 0.44, 0.52, 1]);
-ctx.lineWidth = Math.max(0.5, this._styleNumber(style, "width", 1.5));
-ctx.setLineDash(Array.isArray(style.dash) ? style.dash :
-(typeof style.dash === "string" ? style.dash.split(",").map(Number) : []));
-ctx.beginPath();
-const start = Math.max(0, Math.min(1, Number(style.span_start) || 0));
-const rawEnd = style.span_end === undefined ? 1 : Number(style.span_end);
-const end = Math.max(start, Math.min(1, Number.isFinite(rawEnd) ? rawEnd : 1));
-if (vertical) {
-ctx.moveTo(crisp, p.y + (1 - end) * p.h);
-ctx.lineTo(crisp, p.y + (1 - start) * p.h);
-} else {
-ctx.moveTo(p.x + start * p.w, crisp);
-ctx.lineTo(p.x + end * p.w, crisp);
-}
-ctx.stroke();
-ctx.restore();
-} else if (ann.kind === "arrow") {
-this._drawArrowLine(
-ctx,
-this._dataPxX(Number(ann.x0)),
-this._dataPxY(Number(ann.y0)),
-this._dataPxX(Number(ann.x1)),
-this._dataPxY(Number(ann.y1)),
-style
-);
-} else if (ann.kind === "callout") {
-const px = this._dataPxX(Number(ann.x));
-const py = this._dataPxY(Number(ann.y));
-const dx = Number.isFinite(Number(ann.dx)) ? Number(ann.dx) : 0;
-const dy = Number.isFinite(Number(ann.dy)) ? Number(ann.dy) : 0;
-this._drawArrowLine(ctx, px + dx, py + dy, px, py, style);
-} else if (ann.kind === "marker") {
-this._drawAnnotationMarker(
-ctx,
-this._dataPxX(Number(ann.x)),
-this._dataPxY(Number(ann.y)),
-style,
-ann
-);
-}
-}
-ctx.restore();
-},
-_drawAnnotationLabels(updateLabels) {
-if (!updateLabels) return;
-const annotations = Array.isArray(this.spec.annotations) ? this.spec.annotations : [];
-if (!annotations.length) return;
-const p = this.plot;
-for (const ann of annotations) {
-const text = typeof ann.text === "string" ? ann.text : "";
-if (!text) continue;
-const style = ann && typeof ann.style === "object" ? ann.style : {};
-let px = null;
-let py = null;
-let lift = null;
-if (ann.kind === "text") {
-if (style.coordinate_space === "axes_fraction") {
-px = p.x + Number(ann.x) * p.w;
-py = p.y + (1 - Number(ann.y)) * p.h;
-} else if (style.coordinate_space === "figure_fraction") {
-px = Number(ann.x) * this.size.w;
-py = (1 - Number(ann.y)) * this.size.h;
-} else if (style.coordinate_space === "yaxis_transform") {
-px = p.x + Number(ann.x) * p.w;
-py = this._dataPxY(Number(ann.y));
-} else if (style.coordinate_space === "xaxis_transform") {
-px = this._dataPxX(Number(ann.x));
-py = p.y + (1 - Number(ann.y)) * p.h;
-} else {
-px = this._dataPxX(Number(ann.x));
-py = this._dataPxY(Number(ann.y));
-}
-} else if (ann.kind === "rule") {
-if (ann.axis === "x") {
-px = this._dataPxX(Number(ann.value));
-py = p.y + 6;
-} else {
-px = p.x + p.w - 6;
-py = this._dataPxY(Number(ann.value));
-}
-} else if (ann.kind === "band") {
-if (ann.axis === "x") {
-px = (this._dataPxX(Number(ann.start)) + this._dataPxX(Number(ann.end))) / 2;
-py = p.y + 6;
-} else {
-px = p.x + p.w - 6;
-py = (this._dataPxY(Number(ann.start)) + this._dataPxY(Number(ann.end))) / 2;
-}
-} else if (ann.kind === "arrow") {
-const ax0 = this._dataPxX(Number(ann.x0));
-const ay0 = this._dataPxY(Number(ann.y0));
-const ax1 = this._dataPxX(Number(ann.x1));
-const ay1 = this._dataPxY(Number(ann.y1));
-px = (ax0 + ax1) / 2;
-py = (ay0 + ay1) / 2;
-const len = Math.hypot(ax1 - ax0, ay1 - ay0);
-if (len > 1e-6) {
-lift = [-(ay1 - ay0) / len, (ax1 - ax0) / len];
-if (lift[1] > 0) lift = [-lift[0], -lift[1]];
-}
-} else if (ann.kind === "callout") {
-px = this._dataPxX(Number(ann.x));
-py = this._dataPxY(Number(ann.y));
-} else if (ann.kind === "marker") {
-px = this._dataPxX(Number(ann.x));
-py = this._dataPxY(Number(ann.y));
-}
-if (!Number.isFinite(px) || !Number.isFinite(py)) continue;
-if (px < p.x - 24 || px > p.x + p.w + 24 || py < p.y - 24 || py > p.y + p.h + 24) {
-continue;
-}
-const d = document.createElement("div");
-d.textContent = text;
-const dx = Number.isFinite(Number(ann.dx)) ? Number(ann.dx) : 0;
-const dy = Number.isFinite(Number(ann.dy)) ? Number(ann.dy) : 0;
-let anchorName = ann.anchor;
-let va = String(style.vertical_align || "");
-if (ann.kind === "rule" || ann.kind === "band") {
-if (ann.axis === "x") {
-if (!anchorName && ann.kind === "band") anchorName = "middle";
-if (!va) va = "top";
-} else {
-if (!anchorName) anchorName = "end";
-if (!va && ann.kind === "band") va = "middle";
-}
-} else if (ann.kind === "arrow") {
-if (!anchorName) anchorName = "middle";
-if (!va) va = "middle";
-}
-const anchor = anchorName === "middle" ? "-50%" : anchorName === "end" ? "-100%" : "0px";
-const rot = Number.isFinite(Number(style.rotation))
-? ((Number(style.rotation) % 360) + 360) % 360
-: 0;
-const vAnchor =
-va === "center" || va === "middle" ? "-50%"
-: va === "bottom" ? "-100%"
-: va === "top" ? "0px"
-: "calc(-100% + 0.35em)";
-let transform = `translate(${anchor},${vAnchor})`;
-if (rot === 90 || rot === 270) {
-const cw = rot === 270;
-const along =
-va === "center" || va === "middle" ? "-50%"
-: va === "top" ? (cw ? "0" : "-100%")
-: va === "bottom" ? (cw ? "-100%" : "0")
-: cw ? "0" : "-100%";
-const cross =
-anchorName === "middle" ? "-50%" : anchorName === "end" ? (cw ? "0" : "-100%") : cw ? "-100%" : "0";
-transform = `rotate(${cw ? 90 : -90}deg) translate(${along},${cross})`;
-} else if (rot) {
-transform = `rotate(${-rot}deg) translate(${anchor},${vAnchor})`;
-}
-d.style.cssText =
-`position:absolute;left:${px + dx}px;top:${py + dy}px;` +
-`transform:${transform};transform-origin:0 0;pointer-events:none;` +
-`white-space:pre-line;text-align:center;width:max-content;`;
-this._applySlot(d, "annotation_label");
-this._applyClass(d, ann.class_name);
-const opacityIsShape = ann.kind !== "text" && ann.kind !== "callout";
-const labelStyle = {};
-for (const [key, value] of Object.entries(style)) {
-if (key === "opacity" && ann.kind === "text") {
-labelStyle[key] = value;
-continue;
-}
-if (XY_ANNOTATION_SHAPE_STYLE_KEYS.has(key)) continue;
-if (opacityIsShape && key === "opacity") continue;
-labelStyle[key] = value;
-}
-this._applyStyle(d, labelStyle);
-if (style && (style.label_color || style.color)) {
-d.style.color = this._annotationLabelPaint(style, this.theme.label);
-}
-if (style && style.label_opacity !== undefined) {
-const labelOpacity = Number(style.label_opacity);
-if (Number.isFinite(labelOpacity)) {
-d.style.opacity = String(Math.max(0, Math.min(1, labelOpacity)));
-}
-}
-this.labels.appendChild(d);
-const cs = getComputedStyle(d);
-const edge = (pad, border) => (parseFloat(pad) || 0) + (parseFloat(border) || 0);
-const padL = edge(cs.paddingLeft, cs.borderLeftWidth);
-const padR = edge(cs.paddingRight, cs.borderRightWidth);
-const padT = edge(cs.paddingTop, cs.borderTopWidth);
-const padB = edge(cs.paddingBottom, cs.borderBottomWidth);
-if ((padL || padR || padT || padB) && rot !== 90 && rot !== 270) {
-const hShift = anchor === "-100%" ? padR : anchor === "-50%" ? 0 : -padL;
-const vShift =
-vAnchor === "-50%" ? 0 : vAnchor === "0px" ? -padT : padB;
-d.style.transform =
-`${rot ? `rotate(${-rot}deg) ` : ""}` +
-`translate(calc(${anchor} + ${hShift}px), calc(${vAnchor} + ${vShift}px))`;
-}
-const liftBounds = lift && this.labels.getBoundingClientRect();
-if (lift && liftBounds.width > 0) {
-const liftScale = liftBounds.width / this.size.w;
-const r = d.getBoundingClientRect();
-const clear =
-(r.width / liftScale / 2) * Math.abs(lift[0]) +
-(r.height / liftScale / 2) * Math.abs(lift[1]) + 3;
-px += lift[0] * clear;
-py += lift[1] * clear;
-d.style.left = `${px + dx}px`;
-d.style.top = `${py + dy}px`;
-}
-const bounds = this.labels.getBoundingClientRect();
-if (bounds.width > 0) {
-const scale = bounds.width / this.size.w;
-const r = d.getBoundingClientRect();
-const pullX =
-r.right > bounds.right ? bounds.right - r.right
-: r.left < bounds.left ? bounds.left - r.left : 0;
-const pullY =
-r.bottom > bounds.bottom ? bounds.bottom - r.bottom
-: r.top < bounds.top ? bounds.top - r.top : 0;
-if (pullX) d.style.left = `${px + dx + pullX / scale}px`;
-if (pullY) d.style.top = `${py + dy + pullY / scale}px`;
-}
-}
-},
-});
-Object.assign(ChartView.prototype, {
-_showTooltip(hit, clientX, clientY) {
-const row = this._localRow(hit);
-this._lastRow = row;
-this._setTooltipAnchor(hit, row, clientX, clientY);
-this._renderTooltip(row, clientX, clientY);
-if (this._interactionFlag("hover")) {
-this._dispatchChartEvent("hover", {
-row,
-trace: hit.trace,
-index: hit.index,
-view: this._eventView("hover"),
-...this._hoverPayload(row, hit, clientX, clientY),
-});
-}
-if (this.comm) {
-this._pickSeq = (this._pickSeq || 0) + 1;
-const req = { type: "pick", seq: this._pickSeq, trace: hit.trace, index: hit.index };
-const hg = hit.g;
-if (hg && hg.tier === "density" && hg.drill && hg.drill.seq !== undefined) {
-req.drill_seq = hg.drill.seq;
-}
-this.comm.send(req);
-}
-},
-_localRow(hit) {
-const g = hit.g;
-const cpu = g._cpu;
-const row = { trace: g.trace.id, index: hit.index };
-if (hit.heatmap && g.heatmap && g._cpuHeatmap) {
-const h = g.heatmap;
-const { row: heatRow, col } = hit.heatmap;
-const rawX = h.xRange[0] + (col + 0.5) * ((h.xRange[1] - h.xRange[0]) / h.w);
-const rawY = h.yRange[0] + (heatRow + 0.5) * ((h.yRange[1] - h.yRange[0]) / h.h);
-const [x, xKind] = this._sourceDisplayValue(g, "x", rawX, "float");
-const [y, yKind] = this._sourceDisplayValue(g, "y", rawY, "float");
-row.x = x;
-row.y = y;
-if (xKind !== undefined) row.x_kind = xKind;
-if (yKind !== undefined) row.y_kind = yKind;
-const norm = g._cpuHeatmap.grid[hit.index];
-row.color_value = this._denormalizeUnit(norm, g.trace.color && g.trace.color.domain);
-} else if (g._cpuRect) {
-const r = g._cpuRect;
-const x0 = this._decodeValue(r.x0, r.x0Meta, hit.index);
-const x1 = this._decodeValue(r.x1, r.x1Meta, hit.index);
-const y0 = this._decodeValue(r.y0, r.y0Meta, hit.index);
-const y1 = this._decodeValue(r.y1, r.y1Meta, hit.index);
-const [x, xKind] = this._sourceDisplayValue(
-g, "x", x0 + (x1 - x0) / 2, r.x0Meta.kind,
-);
-const [y, yKind] = this._sourceDisplayValue(g, "y", y1, r.y1Meta.kind);
-row.x = x;
-row.y = y;
-if (xKind !== undefined) row.x_kind = xKind;
-if (yKind !== undefined) row.y_kind = yKind;
-} else if (cpu) {
-const xMeta = cpu.xMeta || g.xMeta;
-const yMeta = cpu.yMeta || g.yMeta;
-const rawX = this._decodeValue(cpu.x, xMeta, hit.index);
-const rawY = this._decodeValue(cpu.y, yMeta, hit.index);
-const [x, xKind] = this._sourceDisplayValue(g, "x", rawX, xMeta && xMeta.kind);
-const [y, yKind] = this._sourceDisplayValue(g, "y", rawY, yMeta && yMeta.kind);
-row.x = x;
-row.y = y;
-if (xKind !== undefined) row.x_kind = xKind;
-if (yKind !== undefined) row.y_kind = yKind;
-const color = g.trace.color;
-if (cpu.color && color) {
-if (color.mode === "categorical" && Array.isArray(color.categories)) {
-const code = Math.round(cpu.color[hit.index]);
-if (code >= 0 && code < color.categories.length) {
-row.color_category = String(color.categories[code]);
-}
-} else if (color.mode === "continuous") {
-row.color_value = this._denormalizeUnit(cpu.color[hit.index], color.domain);
-}
-}
-const size = g.trace.size;
-if (cpu.size && size && size.mode === "continuous") {
-row.size_value = this._denormalizeUnit(cpu.size[hit.index], size.domain);
-}
-}
-this._applySharedTooltipFields(row);
-return row;
-},
-_sourceDisplayValue(g, channel, value, kind) {
-const axis = channel === "x" ? this._axis(g && g.xAxis) : this._axis(g && g.yAxis);
-if (channel === "x" && axis.kind === "category") {
-return [fmtCategory(value, axis.categories || []), undefined];
-}
-if (channel === "y" && axis.kind === "category") {
-return [fmtCategory(value, axis.categories || []), undefined];
-}
-return [value, kind];
-},
-_sourceValue(g, source, index) {
-if (!g || index < 0) return [undefined, undefined];
-const channel = source.channel;
-if (channel === "x" || channel === "y") {
-const cpu = g._cpu;
-if (!cpu || !cpu[channel]) return [undefined, undefined];
-const meta = channel === "x" ? (cpu.xMeta || g.xMeta) : (cpu.yMeta || g.yMeta);
-const value = this._decodeValue(cpu[channel], meta, index);
-if (!Number.isFinite(value)) return [undefined, undefined];
-return this._sourceDisplayValue(g, channel, value, meta && meta.kind);
-}
-if (channel === "color_value") {
-if (g._cpuHeatmap && g._cpuHeatmap.grid && g.trace.color) {
-return [this._denormalizeUnit(g._cpuHeatmap.grid[index], g.trace.color.domain), undefined];
-}
-if (g._cpu && g._cpu.color && g.trace.color) {
-return [this._denormalizeUnit(g._cpu.color[index], g.trace.color.domain), undefined];
-}
-}
-if (channel === "color_category" && g._cpu && g._cpu.color && g.trace.color) {
-const code = Math.round(g._cpu.color[index]);
-const categories = g.trace.color.categories || [];
-if (code >= 0 && code < categories.length) return [String(categories[code]), undefined];
-}
-if (channel === "size_value" && g._cpu && g._cpu.size && g.trace.size) {
-return [this._denormalizeUnit(g._cpu.size[index], g.trace.size.domain), undefined];
-}
-return [undefined, undefined];
-},
-_applySharedTooltipFields(row) {
-const sources = this.spec.tooltip && this.spec.tooltip.sources;
-if (!sources || typeof sources !== "object" || row.x === undefined) return;
-for (const [field, entries] of Object.entries(sources)) {
-if (!Array.isArray(entries) || row[field] !== undefined) continue;
-const source = entries.find((entry) => entry.trace === row.trace) || entries[0];
-if (!source || !Number.isFinite(Number(source.trace))) continue;
-const g = this.gpuTraces.find((trace) => trace.trace.id === source.trace);
-if (!g) continue;
-let idx = Number.isInteger(row.index) && source.trace === row.trace ? row.index : -1;
-if (
-!g._cpuHeatmap &&
-(idx < 0 || !g._cpu || !g._cpu.x || idx >= g._cpu.x.length)
-) {
-idx = this._nearestCpuIndex(g, row.x);
-}
-const [value, kind] = this._sourceValue(g, source, idx);
-if (value === undefined) continue;
-row[field] = value;
-if (kind !== undefined) row[`${field}_kind`] = kind;
-}
-},
-_denormalizeUnit(value, domain) {
-const v = Number(value);
-if (!Number.isFinite(v)) return v;
-if (!Array.isArray(domain) || domain.length < 2) return v;
-const lo = Number(domain[0]);
-const hi = Number(domain[1]);
-if (!Number.isFinite(lo) || !Number.isFinite(hi)) return v;
-return lo + v * (hi - lo);
-},
-_defaultTooltipLines(row) {
-const lines = [];
-if (row.x !== undefined) lines.push(`x: ${fmtValue(row.x, row.x_kind)}`);
-if (row.y !== undefined) lines.push(`y: ${fmtValue(row.y, row.y_kind)}`);
-if (row.color_value !== undefined) lines.push(`color: ${fmtValue(row.color_value)}`);
-if (row.color_category !== undefined) lines.push(`${row.color_category}`);
-if (row.size_value !== undefined) lines.push(`size: ${fmtValue(row.size_value)}`);
-if (!lines.length) lines.push(`#${row.index}`);
-return lines;
-},
-_tooltipLookup(row, field) {
-const aliases = (this.spec.tooltip && this.spec.tooltip.aliases) || {};
-const key = row[field] !== undefined ? field : aliases[field];
-if (!key || row[key] === undefined) return [undefined, undefined];
-return [row[key], row[`${key}_kind`]];
-},
-_formatTooltipValue(value, kind, format) {
-const formatted = fmtNumberSpec(value, format);
-if (formatted !== null) return formatted;
-return fmtValue(value, kind);
-},
-_tooltipLines(row) {
-const tooltip = this.spec.tooltip || {};
-if (!tooltip.title && !Array.isArray(tooltip.fields)) return this._defaultTooltipLines(row);
-const formats = tooltip.format || {};
-const lines = [];
-if (typeof tooltip.title === "string") {
-const title = tooltip.title.replace(/\{([^}]+)\}/g, (_, field) => {
-const [value, kind] = this._tooltipLookup(row, field);
-return value === undefined ? "" : this._formatTooltipValue(value, kind, formats[field]);
-});
-if (title) lines.push(title);
-}
-if (Array.isArray(tooltip.fields)) {
-for (const field of tooltip.fields) {
-if (typeof field !== "string") continue;
-const [value, kind] = this._tooltipLookup(row, field);
-if (value === undefined) continue;
-lines.push(`${field}: ${this._formatTooltipValue(value, kind, formats[field])}`);
-}
-}
-return lines.length ? lines : this._defaultTooltipLines(row);
-},
-_setTooltipAnchor(hit, row, clientX, clientY) {
-const g = hit.g;
-if (!g) { this._tooltipAnchor = null; return; }
-const xAxis = g.xAxis || "x";
-const yAxis = g.yAxis || "y";
-let x = row.x;
-let y = row.y;
-if (!Number.isFinite(x) || !Number.isFinite(y)) {
-const rect = this.canvas.getBoundingClientRect();
-[x, y] = this._dataFromCanvas(clientX - rect.left, clientY - rect.top, xAxis, yAxis);
-}
-this._tooltipAnchor = Number.isFinite(x) && Number.isFinite(y)
-? { xAxis, yAxis, x, y }
-: null;
-if (this._tooltipAnchor && !this._tooltipAnchorPx()) this._tooltipAnchor = null;
-},
-_tooltipAnchorPx() {
-const a = this._tooltipAnchor;
-if (!a) return null;
-const lx = this._dataPx(a.xAxis, a.x);
-const ly = this._dataPx(a.yAxis, a.y);
-const p = this.plot;
-if (!Number.isFinite(lx) || !Number.isFinite(ly)
-|| lx < p.x || lx > p.x + p.w || ly < p.y || ly > p.y + p.h) {
-return null;
-}
-return { lx, ly };
-},
-_hideTooltip() {
-this.tooltip.style.display = "none";
-this._tooltipAnchor = null;
-},
-_repositionTooltip() {
-if (!this._tooltipAnchor) return;
-const pos = this._tooltipAnchorPx();
-if (!pos) {
-this.tooltip.style.display = "none";
-return;
-}
-this.tooltip.style.display = "block";
-this._placeTooltip(pos.lx, pos.ly);
-},
-_placeTooltip(lx, ly) {
-const tw = this.tooltip.offsetWidth;
-const th = this.tooltip.offsetHeight;
-const edge = 4;
-const gap = 12;
-const maxLeft = Math.max(edge, this.size.w - tw - edge);
-const left = Math.max(edge, Math.min(lx + gap, maxLeft));
-const below = ly + gap;
-const above = ly - th - gap;
-const top = below + th <= this.size.h - edge ? below : Math.max(edge, above);
-this.tooltip.style.left = left + "px";
-this.tooltip.style.top = top + "px";
-},
-_renderTooltip(row, clientX, clientY, options = {}) {
-if (!row || this.spec.show_tooltip === false) {
-this._hideTooltip();
-return;
-}
-const lines = this._tooltipLines(row);
-if (!this._customTooltip) {
-this.tooltip.textContent = "";
-lines.forEach((ln, i) => {
-if (i) this.tooltip.appendChild(document.createElement("br"));
-this.tooltip.appendChild(document.createTextNode(ln));
-});
-}
-if (this.a11yLive && options.announce !== false) {
-const prefix = this._a11yKeyboardReadout;
-const detail = lines.join(", ");
-const announcement = prefix
-? `Point ${prefix.flat + 1} of ${prefix.total}. ${detail}`
-: detail;
-if (this.a11yLive.textContent !== announcement) this.a11yLive.textContent = announcement;
-}
-this.tooltip.style.display = "block";
-const pos = this._tooltipAnchorPx();
-if (pos) {
-this._placeTooltip(pos.lx, pos.ly);
-} else if (this._tooltipAnchor) {
-this.tooltip.style.display = "none";
-} else {
-const rect = this.root.getBoundingClientRect();
-this._placeTooltip(clientX - rect.left, clientY - rect.top);
-}
-},
-});
-Object.assign(ChartView.prototype, {
-_initInteraction() {
-const c = this.canvas;
-let drag = null;
-let band = null;
-this.selRect = document.createElement("div");
-this.selRect.style.cssText = "position:absolute;display:none;pointer-events:none;z-index:4;";
-this._applySlot(this.selRect, "selection");
-this.root.appendChild(this.selRect);
-this.selLasso = document.createElementNS("http://www.w3.org/2000/svg", "svg");
-this.selLasso.style.cssText =
-"position:absolute;display:none;pointer-events:none;z-index:4;overflow:visible;";
-this.selLasso.dataset.xySelectionLassoOverlay = "";
-this.selLassoPath = document.createElementNS("http://www.w3.org/2000/svg", "path");
-this.selLassoPath.dataset.xySelectionLasso = "";
-this.selLasso.appendChild(this.selLassoPath);
-this.selLassoHandles = document.createElementNS("http://www.w3.org/2000/svg", "g");
-this.selLassoHandles.dataset.xySelectionLassoHandles = "";
-this.selLasso.appendChild(this.selLassoHandles);
-this.root.appendChild(this.selLasso);
-this._lassoPolygon = null;
-let lassoHandleDrag = null;
-const moveLassoHandle = (e) => {
-if (!lassoHandleDrag || e.pointerId !== lassoHandleDrag.pointerId
-|| !this._lassoPolygon) return;
-const rect = c.getBoundingClientRect();
-const cssX = Math.max(0, Math.min(rect.width, e.clientX - rect.left));
-const cssY = Math.max(0, Math.min(rect.height, e.clientY - rect.top));
-this._lassoPolygon[lassoHandleDrag.index] = this._dataFromCanvas(cssX, cssY);
-this._renderLassoSelection();
-e.preventDefault();
-e.stopPropagation();
-};
-this._listen(this.selLasso, "pointerdown", (e) => {
-const handle = e.target.closest?.("[data-xy-selection-lasso-handle]");
-if (!handle || !this._lassoPolygon) return;
-const index = Number(handle.dataset.xySelectionLassoHandle);
-if (!Number.isInteger(index) || !this._lassoPolygon[index]) return;
-lassoHandleDrag = {
-index,
-pointerId: e.pointerId,
-original: [...this._lassoPolygon[index]],
-handle,
-};
-handle.dataset.xyActive = "";
-this._hideTooltip();
-try { this.selLasso.setPointerCapture(e.pointerId); } catch (_err) {   }
-e.preventDefault();
-e.stopPropagation();
-});
-this._listen(this.selLasso, "pointermove", moveLassoHandle);
-this._listen(this.selLasso, "pointerup", (e) => {
-if (!lassoHandleDrag || e.pointerId !== lassoHandleDrag.pointerId) return;
-moveLassoHandle(e);
-const handle = lassoHandleDrag.handle;
-lassoHandleDrag = null;
-delete handle.dataset.xyActive;
-if (this._lassoPolygon) this._sendSelectPolygon(this._lassoPolygon);
-});
-this._listen(this.selLasso, "pointercancel", (e) => {
-if (!lassoHandleDrag || e.pointerId !== lassoHandleDrag.pointerId) return;
-if (this._lassoPolygon) {
-this._lassoPolygon[lassoHandleDrag.index] = lassoHandleDrag.original;
-}
-delete lassoHandleDrag.handle.dataset.xyActive;
-lassoHandleDrag = null;
-if (this._lassoPolygon) this._renderLassoSelection();
-e.stopPropagation();
-});
-if (this._interactionFlag("crosshair")) {
-this.crosshairX = document.createElement("div");
-this.crosshairX.style.cssText =
-"position:absolute;display:none;pointer-events:none;z-index:3;width:1px;";
-this._applySlot(this.crosshairX, "crosshair_x");
-this.root.appendChild(this.crosshairX);
-this.crosshairY = document.createElement("div");
-this.crosshairY.style.cssText =
-"position:absolute;display:none;pointer-events:none;z-index:3;height:1px;";
-this._applySlot(this.crosshairY, "crosshair_y");
-this.root.appendChild(this.crosshairY);
-}
-const dataAt = (clientX, clientY) => {
-const r = c.getBoundingClientRect();
-return this._dataFromCanvas(clientX - r.left, clientY - r.top);
-};
-const lassoPointAt = (clientX, clientY) => {
-const r = c.getBoundingClientRect();
-const cssX = Math.max(0, Math.min(r.width, clientX - r.left));
-const cssY = Math.max(0, Math.min(r.height, clientY - r.top));
-return {
-x: r.left + cssX,
-y: r.top + cssY,
-data: this._dataFromCanvas(cssX, cssY),
-};
-};
-this._listen(c, "pointerdown", (e) => {
-this._cancelViewAnimation();
-const canPan = this._interactionFlag("pan", true);
-const canZoom = this._interactionFlag("zoom", true);
-const canNavigate = this._interactionFlag("navigation", true);
-const canBoxZoom = this._interactionFlag("box_zoom", true);
-const canBrush = this._interactionFlag("brush", true) && this._interactionFlag("select", true);
-const selectMode = this.dragMode.startsWith("select") ? this.dragMode : null;
-const mode = (e.shiftKey || selectMode) && canBrush && this._pickable
-? (e.shiftKey ? "select" : selectMode)
-: this.dragMode === "zoom" && canNavigate && canZoom && canBoxZoom ? "zoom" : null;
-if (mode) {
-const previousLasso = mode.startsWith("select") && this._lassoPolygon
-? this._lassoPolygon.map((point) => [...point])
-: null;
-if (mode.startsWith("select")) this._clearLassoOverlay();
-const firstLassoPoint = mode === "select-lasso" ? lassoPointAt(e.clientX, e.clientY) : null;
-const d0 = firstLassoPoint ? firstLassoPoint.data : dataAt(e.clientX, e.clientY);
-band = {
-mode, sx: e.clientX, sy: e.clientY, d0,
-points: firstLassoPoint ? [firstLassoPoint] : null,
-previousLasso,
-};
-try { c.setPointerCapture(e.pointerId); } catch (_err) {   }
-this._hideTooltip();
-return;
-}
-if (this.dragMode === "pan" && canNavigate && canPan) {
-drag = {
-px: e.clientX,
-py: e.clientY,
-view: this._copyView(this.view),
-moved: false,
-interactionId: ++this._interactionSeq,
-axes: [...new Set([
-...this._axisPolicy("pan_axes"),
-...this._axisIds().filter((axisId) => this._axisContained(axisId)),
-])],
-changedAxes: [],
-};
-try { c.setPointerCapture(e.pointerId); } catch (_err) {   }
-this._hideTooltip();
-}
-});
-this._listen(c, "pointermove", (e) => {
-if (band) { this._updateBand(band, e); return; }
-if (drag) {
-drag.moved = true;
-const ranges = Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId, drag.view)]])
-);
-for (const axisId of drag.axes) {
-const axis = this._axis(axisId);
-const [lo, hi] = this._axisRange(axisId, drag.view);
-const c0 = this._axisCoord(axis, lo), c1 = this._axisCoord(axis, hi);
-if (![c0, c1].every(Number.isFinite) || c0 === c1) continue;
-const dim = this._axisDim(axisId);
-const pixels = dim === "x" ? this.plot.w : this.plot.h;
-const deltaPx = dim === "x" ? e.clientX - drag.px : e.clientY - drag.py;
-const delta = (deltaPx / pixels) * (c1 - c0);
-const signed = dim === "x" ? -delta : delta;
-ranges[axisId] = [
-this._axisValue(axis, c0 + signed),
-this._axisValue(axis, c1 + signed),
-];
-}
-const changedAxes = this._setView({ ranges }, {
-source: "pan_drag",
-phase: "update",
-interactionId: drag.interactionId,
-});
-drag.changedAxes = [...new Set([...drag.changedAxes, ...changedAxes])];
-return;
-}
-this._updateCrosshair(e);
-this._hover(e);
-});
-const end = (e) => {
-if (band) {
-if (band.mode === "select-lasso") this._updateBand(band, e);
-this.selRect.style.display = "none";
-this.selLasso.style.display = "none";
-const d1 = dataAt(e.clientX, e.clientY);
-const moved = band.mode === "select-lasso"
-? band.points.length >= 3
-: Math.abs(e.clientX - band.sx) > 3 || Math.abs(e.clientY - band.sy) > 3;
-if (moved) {
-if (band.mode === "zoom" && this._interactionFlag("zoom", true)) {
-this._zoomToBox(band.d0, d1, true, {
-source: "box_zoom",
-phase: "end",
-interactionId: ++this._interactionSeq,
-});
-} else if (band.mode === "select-lasso") {
-if (band.points.length >= 3) {
-const editable = this._simplifyLassoPoints(band.points);
-this._sendSelectPolygon(editable.map((point) => point.data));
-} else if (band.previousLasso) {
-this._lassoPolygon = band.previousLasso;
-this._renderLassoSelection();
-}
-} else {
-let d0 = band.d0;
-if (band.mode === "select-x") {
-d0 = [band.d0[0], this.view.y0];
-d1[1] = this.view.y1;
-} else if (band.mode === "select-y") {
-d0 = [this.view.x0, band.d0[1]];
-d1[0] = this.view.x1;
-}
-this._sendSelect(d0, d1);
-}
-this._ignoreNextClick = true;
-} else if (band.previousLasso) {
-this._lassoPolygon = band.previousLasso;
-this._renderLassoSelection();
-}
-band = null;
-return;
-}
-if (drag && drag.moved) {
-this._ignoreNextClick = true;
-if (drag.changedAxes.length) this._emitViewChange("pan_drag", {
-axes: drag.changedAxes,
-phase: "end",
-interactionId: drag.interactionId,
-});
-}
-if (drag && !drag.moved) this._hideTooltip();
-drag = null;
-};
-this._listen(c, "pointerup", end);
-this._listen(c, "pointercancel", () => {
-this.selRect.style.display = "none";
-this.selLasso.style.display = "none";
-if (band?.previousLasso) {
-this._lassoPolygon = band.previousLasso;
-this._renderLassoSelection();
-}
-band = null;
-drag = null;
-});
-this._listen(c, "pointerleave", () => this._pointerHoverExit());
-this._listen(document, "pointerover", (e) => {
-if (!this._lastHoverXY || this._a11yKeyboardReadout) return;
-if (this.root.contains(e.target)) return;
-this._pointerHoverExit();
-});
-this._listen(c, "click", (e) => this._click(e));
-this._listen(c, "wheel", (e) => {
-if (!this._interactionFlag("navigation", true)) return;
-if (!this._interactionFlag("zoom", true)) return;
-if (!this._interactionFlag("wheel_zoom", true)) return;
-e.preventDefault();
-const f = Math.pow(1.0015, e.deltaY);
-const r = c.getBoundingClientRect();
-const fx = (e.clientX - r.left) / r.width;
-const fy = 1 - (e.clientY - r.top) / r.height;
-this._queueWheelZoom(f, fx, fy);
-}, { passive: false });
-this._listen(c, "dblclick", () => {
-if (!this._interactionFlag("navigation", true)) return;
-if (!this._interactionFlag("double_click_reset", true)) return;
-this._resetView(true, "reset");
-});
-this._listen(c, "keydown", (e) => {
-if (e.key === "Escape" && (band || drag)) {
-this.selRect.style.display = "none";
-this.selLasso.style.display = "none";
-band = null;
-drag = null;
-e.preventDefault();
-e.stopImmediatePropagation();
-}
-});
-this._listen(c, "keydown", (e) => this._onA11yKey(e));
-},
-_pointerHoverExit() {
-const hadHover = this._hoverId !== -1;
-this._hoverId = -1;
-this._hoverTarget = null;
-this._lastHoverXY = null;
-this._a11yKeyboardReadout = null;
-this._pickSeq = (this._pickSeq || 0) + 1;
-this._hideTooltip();
-this._hideCrosshair();
-if (this._interactionFlag("hover")) {
-this._dispatchChartEvent("leave", { view: this._eventView("leave"), active: false });
-}
-if (hadHover) this._drawKeepPick();
-},
-_a11yPointGroups() {
-return (this.gpuTraces || []).filter((g) =>
-markOf(g.trace.kind).pointPick && g.tier !== "density" && g._cpu &&
-g._cpu.x && g._cpu.y && Math.min(g._cpu.x.length, g._cpu.y.length) > 0);
-},
-_onA11yKey(e) {
-const direction = { ArrowRight: 1, ArrowDown: 1, ArrowLeft: -1, ArrowUp: -1 }[e.key];
-const activate = e.key === "Enter" || e.key === " ";
-if (direction === undefined && e.key !== "Home" && e.key !== "End" && e.key !== "Escape"
-&& !activate) {
-return;
-}
-if (activate) {
-if (!this._interactionFlag("click") || !this._hoverTarget) return;
-e.preventDefault();
-const hit = this._hoverTarget;
-const rect = this.canvas.getBoundingClientRect();
-const clientX = this._lastHoverXY?.clientX ?? rect.left;
-const clientY = this._lastHoverXY?.clientY ?? rect.top;
-const screen = { x: clientX - rect.left, y: clientY - rect.top };
-const modifiers = {
-shift: e.shiftKey === true,
-alt: e.altKey === true,
-ctrl: e.ctrlKey === true,
-meta: e.metaKey === true,
-};
-const detail = {
-row: this._localRow ? this._localRow(hit) : null,
-trace: hit.trace,
-index: hit.index,
-screen,
-modifiers,
-view: this._eventView("click"),
-};
-this._dispatchChartEvent("click", detail);
-if (this.comm) {
-const msg = { type: "click", trace: hit.trace, index: hit.index, screen, modifiers };
-const g = hit.g;
-if (g && g.tier === "density" && g.drill && g.drill.seq !== undefined) {
-msg.drill_seq = g.drill.seq;
-}
-this.comm.send(msg);
-}
-return;
-}
-if (e.key === "Escape") {
-e.preventDefault();
-const hadHover = this._hoverId !== -1;
-this._hideTooltip();
-this._hoverId = -1;
-this._hoverTarget = null;
-this._lastHoverXY = null;
-this._a11yKeyboardReadout = null;
-this._pickSeq = (this._pickSeq || 0) + 1;
-if (this.a11yLive) this.a11yLive.textContent = "Readout closed.";
-if (hadHover && this._interactionFlag("hover")) {
-this._dispatchChartEvent("leave", { view: this._eventView("leave"), active: false });
-}
-if (hadHover) this._drawKeepPick();
-return;
-}
-e.preventDefault();
-if (this._interactionTransitionActive()) return;
-const groups = this._a11yPointGroups();
-const total = groups.reduce((sum, g) => sum + Math.min(g._cpu.x.length, g._cpu.y.length), 0);
-if (!total) return;
-let flat = Number.isInteger(this._a11yPointIndex) ? this._a11yPointIndex : -1;
-if (e.key === "Home") flat = 0;
-else if (e.key === "End") flat = total - 1;
-else if (flat < 0) flat = direction > 0 ? 0 : total - 1;
-else flat = Math.max(0, Math.min(total - 1, flat + direction));
-this._a11yPointIndex = flat;
-let offset = flat;
-let g = groups[0];
-for (const candidate of groups) {
-const n = Math.min(candidate._cpu.x.length, candidate._cpu.y.length);
-if (offset < n) { g = candidate; break; }
-offset -= n;
-}
-const hit = { trace: g.trace.id, index: offset, g };
-const xValue = this._decodeValue(g._cpu.x, g._cpu.xMeta || g.xMeta, offset);
-const yValue = this._decodeValue(g._cpu.y, g._cpu.yMeta || g.yMeta, offset);
-const x = this._dataPx(g.xAxis || "x", xValue) - this.plot.x;
-const y = this._dataPx(g.yAxis || "y", yValue) - this.plot.y;
-const rect = this.canvas.getBoundingClientRect();
-const clientX = rect.left + Math.max(0, Math.min(rect.width, x));
-const clientY = rect.top + Math.max(0, Math.min(rect.height, y));
-this._hoverId = hit.trace * 1e9 + hit.index;
-this._hoverTarget = hit;
-this._lastHoverXY = { clientX, clientY };
-this._a11yKeyboardReadout = { flat, total };
-this._showTooltip(hit, clientX, clientY);
-this._drawKeepPick();
-},
-_updateCrosshair(e) {
-if (!this.crosshairX || !this.crosshairY) return;
-const rect = this.canvas.getBoundingClientRect();
-const rootRect = this.root.getBoundingClientRect();
-const x = e.clientX - rect.left;
-const y = e.clientY - rect.top;
-if (x < 0 || x > rect.width || y < 0 || y > rect.height) {
-this._hideCrosshair();
-return;
-}
-const left = e.clientX - rootRect.left;
-const top = e.clientY - rootRect.top;
-this.crosshairX.style.display = "block";
-this.crosshairX.style.left = left + "px";
-this.crosshairX.style.top = this.plot.y + "px";
-this.crosshairX.style.height = this.plot.h + "px";
-this.crosshairY.style.display = "block";
-this.crosshairY.style.left = this.plot.x + "px";
-this.crosshairY.style.top = top + "px";
-this.crosshairY.style.width = this.plot.w + "px";
-},
-_hideCrosshair() {
-if (this.crosshairX) this.crosshairX.style.display = "none";
-if (this.crosshairY) this.crosshairY.style.display = "none";
-},
-_click(e) {
-if (this._ignoreNextClick) {
-this._ignoreNextClick = false;
-return;
-}
-if (!this._interactionFlag("click")) return;
-const rect = this.canvas.getBoundingClientRect();
-const cssX = e.clientX - rect.left;
-const cssY = e.clientY - rect.top;
-const [x, y] = this._dataFromCanvas(cssX, cssY);
-const hit = this._pickAt(cssX, cssY) || this._hoverAt(cssX, cssY);
-const detail = {
-x,
-y,
-view: this._eventView("click"),
-row: hit && this._localRow ? this._localRow(hit) : null,
-trace: hit ? hit.trace : null,
-index: hit ? hit.index : null,
-};
-this._dispatchChartEvent("click", detail);
-if (hit && this.comm) {
-const msg = {
-type: "click",
-trace: hit.trace,
-index: hit.index,
-screen: { x: cssX, y: cssY },
-modifiers: {
-shift: e.shiftKey === true,
-alt: e.altKey === true,
-ctrl: e.ctrlKey === true,
-meta: e.metaKey === true,
-},
-};
-const g = hit.g;
-if (g && g.tier === "density" && g.drill && g.drill.seq !== undefined) {
-msg.drill_seq = g.drill.seq;
-}
-this.comm.send(msg);
-}
-},
-_updateBand(band, e) {
-const rect = this.canvas.getBoundingClientRect();
-const rootRect = this.root.getBoundingClientRect();
-if (band.mode === "select-lasso") {
-const previous = band.points[band.points.length - 1];
-const cssX = Math.max(0, Math.min(rect.width, e.clientX - rect.left));
-const cssY = Math.max(0, Math.min(rect.height, e.clientY - rect.top));
-const clientX = rect.left + cssX;
-const clientY = rect.top + cssY;
-if (band.points.length < 2048
-&& Math.hypot(clientX - previous.x, clientY - previous.y) >= 3) {
-band.points.push({ x: clientX, y: clientY, data: this._dataFromCanvas(cssX, cssY) });
-}
-const points = band.points.map((point) => [
-Math.max(this.plot.x, Math.min(this.plot.x + this.plot.w, point.x - rootRect.left)),
-Math.max(this.plot.y, Math.min(this.plot.y + this.plot.h, point.y - rootRect.top)),
-]);
-this.selLasso.style.display = "block";
-this.selLasso.style.inset = "0";
-this.selLasso.setAttribute("width", String(this.root.clientWidth));
-this.selLasso.setAttribute("height", String(this.root.clientHeight));
-this.selLassoPath.setAttribute(
-"d", points.map((point, i) => `${i ? "L" : "M"}${point[0]} ${point[1]}`).join(" ") + " Z"
-);
-return;
-}
-const x = Math.min(band.sx, e.clientX) - rootRect.left;
-const y = Math.min(band.sy, e.clientY) - rootRect.top;
-const w = Math.abs(e.clientX - band.sx);
-const h = Math.abs(e.clientY - band.sy);
-const px = this.plot.x, py = this.plot.y;
-const x2 = Math.min(x + w, px + this.plot.w), y2 = Math.min(y + h, py + this.plot.h);
-let cx = Math.max(x, px), cy = Math.max(y, py);
-let bx2 = x2, by2 = y2;
-if (band.mode === "select-x") { cy = py; by2 = py + this.plot.h; }
-if (band.mode === "select-y") { cx = px; bx2 = px + this.plot.w; }
-this.selRect.dataset.xyBand = band.mode === "zoom" ? "zoom" : "select";
-this.selRect.style.display = "block";
-this.selRect.style.left = cx + "px";
-this.selRect.style.top = cy + "px";
-this.selRect.style.width = Math.max(0, bx2 - cx) + "px";
-this.selRect.style.height = Math.max(0, by2 - cy) + "px";
-void rect;
-},
-_simplifyLassoPoints(points, tolerance = 6, maxPoints = 16) {
-const source = points.filter((point) => point && Number.isFinite(point.x) && Number.isFinite(point.y));
-if (source.length > 3) {
-const first = source[0], last = source[source.length - 1];
-if (Math.hypot(first.x - last.x, first.y - last.y) <= tolerance) source.pop();
-}
-if (source.length <= 3) return source.slice();
-const distanceToSegmentSq = (point, start, end) => {
-const dx = end.x - start.x, dy = end.y - start.y;
-if (dx === 0 && dy === 0) {
-return (point.x - start.x) ** 2 + (point.y - start.y) ** 2;
-}
-const t = Math.max(0, Math.min(1,
-((point.x - start.x) * dx + (point.y - start.y) * dy) / (dx * dx + dy * dy)
-));
-const x = start.x + t * dx, y = start.y + t * dy;
-return (point.x - x) ** 2 + (point.y - y) ** 2;
-};
-const simplifyAt = (currentTolerance) => {
-const keep = new Uint8Array(source.length);
-keep[0] = 1;
-keep[source.length - 1] = 1;
-const stack = [[0, source.length - 1]];
-const toleranceSq = currentTolerance * currentTolerance;
-while (stack.length) {
-const [start, end] = stack.pop();
-let furthest = -1, furthestDistance = toleranceSq;
-for (let i = start + 1; i < end; i++) {
-const distance = distanceToSegmentSq(source[i], source[start], source[end]);
-if (distance > furthestDistance) {
-furthest = i;
-furthestDistance = distance;
-}
-}
-if (furthest >= 0) {
-keep[furthest] = 1;
-stack.push([start, furthest], [furthest, end]);
-}
-}
-return source.filter((_point, index) => keep[index]);
-};
-let simplified = simplifyAt(tolerance);
-if (simplified.length < 3) {
-simplified = [source[0], source[Math.floor(source.length / 2)], source[source.length - 1]];
-}
-if (simplified.length > maxPoints) {
-let low = tolerance;
-let high = Math.max(tolerance, 1);
-for (let i = 0; i < 16 && simplified.length > maxPoints; i++) {
-low = high;
-high *= 2;
-simplified = simplifyAt(high);
-}
-for (let i = 0; i < 12; i++) {
-const middle = (low + high) / 2;
-const candidate = simplifyAt(middle);
-if (candidate.length > maxPoints) low = middle;
-else {
-high = middle;
-simplified = candidate;
-}
-}
-if (simplified.length < 3) {
-simplified = [source[0], source[Math.floor(source.length / 2)], source[source.length - 1]];
-}
-}
-return simplified;
-},
-_clearLassoOverlay() {
-this._lassoPolygon = null;
-if (!this.selLasso) return;
-this.selLasso.style.display = "none";
-this.selLassoPath?.removeAttribute("d");
-this.selLassoHandles?.replaceChildren();
-},
-_renderLassoSelection() {
-const polygon = this._lassoPolygon;
-if (!this.selLasso || !this.selLassoPath || !this.selLassoHandles
-|| !Array.isArray(polygon) || polygon.length < 3) return;
-const [x0, x1] = this._axisRange("x");
-const [y0, y1] = this._axisRange("y");
-const xAxis = this._axis("x"), yAxis = this._axis("y");
-const cx0 = this._axisCoord(xAxis, x0), cx1 = this._axisCoord(xAxis, x1);
-const cy0 = this._axisCoord(yAxis, y0), cy1 = this._axisCoord(yAxis, y1);
-if (![cx0, cx1, cy0, cy1].every(Number.isFinite) || cx0 === cx1 || cy0 === cy1) return;
-const points = polygon.map((point) => {
-const cx = this._axisCoord(xAxis, point[0]);
-const cy = this._axisCoord(yAxis, point[1]);
-const x = this.plot.x + ((cx - cx0) / (cx1 - cx0)) * this.plot.w;
-const y = this.plot.y + ((cy1 - cy) / (cy1 - cy0)) * this.plot.h;
-return [
-Math.max(this.plot.x, Math.min(this.plot.x + this.plot.w, x)),
-Math.max(this.plot.y, Math.min(this.plot.y + this.plot.h, y)),
-];
-});
-if (!points.flat().every(Number.isFinite)) return;
-this.selLasso.style.display = "block";
-this.selLasso.style.inset = "0";
-this.selLasso.setAttribute("width", String(this.root.clientWidth));
-this.selLasso.setAttribute("height", String(this.root.clientHeight));
-this.selLassoPath.setAttribute(
-"d", points.map((point, index) => `${index ? "L" : "M"}${point[0]} ${point[1]}`).join(" ") + " Z"
-);
-while (this.selLassoHandles.childElementCount < points.length) {
-const handle = document.createElementNS("http://www.w3.org/2000/svg", "circle");
-handle.dataset.xySelectionLassoHandle = "";
-handle.setAttribute("r", "4");
-this.selLassoHandles.appendChild(handle);
-}
-while (this.selLassoHandles.childElementCount > points.length) {
-this.selLassoHandles.lastElementChild.remove();
-}
-[...this.selLassoHandles.children].forEach((handle, index) => {
-handle.dataset.xySelectionLassoHandle = String(index);
-handle.setAttribute("cx", String(points[index][0]));
-handle.setAttribute("cy", String(points[index][1]));
-handle.setAttribute("aria-label", `Lasso point ${index + 1}`);
-});
-},
-_sendSelect(d0, d1, opts = {}) {
-this._clearLassoOverlay();
-const x0 = Math.min(d0[0], d1[0]), x1 = Math.max(d0[0], d1[0]);
-const y0 = Math.min(d0[1], d1[1]), y1 = Math.max(d0[1], d1[1]);
-const range = { x0, x1, y0, y1 };
-this._historyRecord({
-source: opts.source,
-interactionId: opts.interactionId,
-history: opts.history,
-});
-this._stateSelection = { range: { ...range } };
-this._lastBrush = { mode: "box", x0, x1, y0, y1 };
-this._broadcastLinkedSelection({ range });
-this._dispatchChartEvent("brush", { range, view: this._eventView("brush") });
-if (this.comm) {
-this.comm.send({ type: "select", x0, x1, y0, y1 });
-} else {
-this._selectLocal(x0, x1, y0, y1);
-}
-},
-_sendSelectPolygon(points, opts = {}) {
-if (!Array.isArray(points) || points.length < 3) return;
-const polygon = points.map((point) => [point[0], point[1]]);
-if (!polygon.every((point) => point.every(Number.isFinite))) return;
-this._historyRecord({
-source: opts.source,
-interactionId: opts.interactionId,
-history: opts.history,
-});
-this._stateSelection = { polygon: polygon.map((point) => [...point]) };
-this._lassoPolygon = polygon;
-this._lastBrush = { mode: "poly", points: polygon };
-this._broadcastLinkedSelection({ polygon });
-this._renderLassoSelection();
-this._dispatchChartEvent("brush", {
-polygon,
-view: this._eventView("brush"),
-});
-if (this.comm) {
-this.comm.send({ type: "select_polygon", points: polygon });
-} else {
-this._selectLocalPolygon(polygon);
-}
-},
-_selectLocalPolygon(points, opts = {}) {
-const xs = points.map((point) => point[0]);
-const ys = points.map((point) => point[1]);
-const minX = Math.min(...xs), maxX = Math.max(...xs);
-const minY = Math.min(...ys), maxY = Math.max(...ys);
-const inside = (x, y) => {
-let hit = false;
-for (let i = 0, j = points.length - 1; i < points.length; j = i++) {
-const [xi, yi] = points[i], [xj, yj] = points[j];
-if ((yi > y) !== (yj > y) && x < ((xj - xi) * (y - yi)) / (yj - yi) + xi) hit = !hit;
-}
-return hit;
-};
-let total = 0;
-for (const g of this.gpuTraces) {
-if (!g._cpu || g.tier === "density") continue;
-const cx = g._cpu.x, cy = g._cpu.y;
-const xMeta = g._cpu.xMeta || g.xMeta;
-const yMeta = g._cpu.yMeta || g.yMeta;
-const ox = xMeta.offset, sx = xMeta.scale || 1;
-const oy = yMeta.offset, sy = yMeta.scale || 1;
-const mask = new Float32Array(g.n);
-let count = 0;
-for (let i = 0; i < g.n; i++) {
-const x = cx[i] / sx + ox;
-const y = cy[i] / sy + oy;
-if (x >= minX && x <= maxX && y >= minY && y <= maxY && inside(x, y)) {
-mask[i] = 1;
-count++;
-}
-}
-this._applySelMask(g, mask);
-total += count;
-}
-this._selectionCount = total;
-this.draw();
-if (opts.dispatch !== false) {
-this._dispatchChartEvent("select", {
-total,
-polygon: points,
-view: this._eventView("select"),
-});
-}
-},
-_selectLocal(x0, x1, y0, y1, opts = {}) {
-let total = 0;
-for (const g of this.gpuTraces) {
-if (!g._cpu || g.tier === "density") continue;
-const cx = g._cpu.x, cy = g._cpu.y;
-const xMeta = g._cpu.xMeta || g.xMeta;
-const yMeta = g._cpu.yMeta || g.yMeta;
-const ox = xMeta.offset, sx = xMeta.scale || 1;
-const oy = yMeta.offset, sy = yMeta.scale || 1;
-const mask = new Float32Array(g.n);
-let cnt = 0;
-for (let i = 0; i < g.n; i++) {
-const dx = cx[i] / sx + ox, dy = cy[i] / sy + oy;
-if (dx >= x0 && dx <= x1 && dy >= y0 && dy <= y1) { mask[i] = 1; cnt++; }
-}
-this._applySelMask(g, mask);
-total += cnt;
-}
-this._selectionCount = total;
-this.draw();
-if (opts.dispatch !== false) {
-this._dispatchChartEvent("select", {
-total,
-range: { x0, x1, y0, y1 },
-view: this._eventView("select"),
-});
-}
-},
-_applySelMask(g, maskF32) {
-const gl = this.gl;
-if (!g.selBuf) g.selBuf = gl.createBuffer();
-gl.bindBuffer(gl.ARRAY_BUFFER, g.selBuf);
-gl.bufferData(gl.ARRAY_BUFFER, maskF32, gl.STATIC_DRAW);
-g.selActive = true;
-},
-_clearSelection(opts = {}) {
-this._clearLassoOverlay();
-if (opts.dispatch !== false && this._stateSelection !== null
-&& this._stateSelection !== undefined) {
-this._historyRecord({
-source: opts.source,
-interactionId: opts.interactionId,
-history: opts.history,
-});
-}
-this._stateSelection = null;
-for (const g of this.gpuTraces) {
-g.selActive = false;
-if (g.drill) g.drill.selActive = false;
-}
-this._selectionCount = 0;
-this._lastBrush = null;
-if (opts.broadcast !== false) this._broadcastLinkedSelection({ clear: true });
-if (opts.dispatch !== false) {
-if (this._interactionFlag("select", true)) {
-if (this.comm) this.comm.send({ type: "select_clear" });
-this._dispatchChartEvent("select", { total: 0, view: this._eventView("select_clear") });
-}
-}
-},
-_clampModebar(left, top) {
-const bar = this._modebar;
-if (!bar || !this.root) return;
-const currentLeft = left ?? (Number.parseFloat(bar.style.left) || 0);
-const currentTop = top ?? (Number.parseFloat(bar.style.top) || 0);
-const maxLeft = Math.max(0, this.root.clientWidth - bar.offsetWidth);
-const maxTop = Math.max(0, this.root.clientHeight - bar.offsetHeight);
-bar.style.left = `${Math.max(0, Math.min(maxLeft, currentLeft))}px`;
-bar.style.top = `${Math.max(0, Math.min(maxTop, currentTop))}px`;
-},
-_buildModebar(root) {
-if (this.spec.show_modebar === false) return;
-const bar = document.createElement("div");
-bar.style.cssText =
-`position:absolute;top:${this.plot.y + 4}px;left:${this.plot.x + 4}px;z-index:6;` +
-"display:flex;opacity:0;pointer-events:none;transition:opacity .15s;";
-this._applySlot(bar, "modebar");
-bar.setAttribute("role", "toolbar");
-bar.setAttribute("aria-label", "Chart controls");
-this._modebar = bar;
-this._modeBtns = {};
-this._modebarMoved = false;
-let setZoomMenuOpen = () => {};
-let setSelectMenuOpen = () => {};
-let setExportMenuOpen = () => {};
-const setVisible = (visible) => {
-const show = visible || this._modebarDragging || bar.contains(document.activeElement);
-bar.style.opacity = show ? "1" : "0";
-bar.style.pointerEvents = show ? "auto" : "none";
-};
-this._listen(root, "pointerenter", () => setVisible(true));
-this._listen(root, "pointerleave", () => {
-setVisible(false);
-setZoomMenuOpen(false);
-setSelectMenuOpen(false);
-setExportMenuOpen(false);
-});
-this._listen(bar, "focusin", () => setVisible(true));
-this._listen(bar, "focusout", (e) => {
-if (!bar.contains(e.relatedTarget) && !root.matches(":hover")) setVisible(false);
-});
-const grip = document.createElement("button");
-grip.type = "button";
-grip.title = "Click for toolbar options; drag to move";
-grip.setAttribute("aria-label", "Toolbar options");
-grip.setAttribute("aria-haspopup", "menu");
-grip.setAttribute("aria-expanded", "false");
-grip.dataset.xyModebarDragHandle = "";
-grip.dataset.xyModebarExport = "";
-grip.dataset.xyModebarExportTrigger = "";
-grip.innerHTML = this._icon("drag");
-grip.style.cssText =
-"display:flex;align-items:center;justify-content:center;pointer-events:auto;touch-action:none;";
-this._applySlot(grip, "modebar_button");
-bar.appendChild(grip);
-const DRAG_THRESHOLD_PX = 6;
-let modebarDrag = null;
-let suppressGripClickUntil = 0;
-this._listen(grip, "pointerdown", (e) => {
-if (e.pointerType === "mouse" && e.button !== 0) return;
-e.stopPropagation();
-const barRect = bar.getBoundingClientRect();
-modebarDrag = {
-pointerId: e.pointerId,
-startX: e.clientX,
-startY: e.clientY,
-dx: e.clientX - barRect.left,
-dy: e.clientY - barRect.top,
-moved: false,
-};
-try { grip.setPointerCapture(e.pointerId); } catch (_err) {   }
-setVisible(true);
-});
-this._listen(grip, "pointermove", (e) => {
-if (!modebarDrag || e.pointerId !== modebarDrag.pointerId) return;
-const distance = Math.hypot(e.clientX - modebarDrag.startX, e.clientY - modebarDrag.startY);
-if (!modebarDrag.moved) {
-if (distance < DRAG_THRESHOLD_PX) return;
-modebarDrag.moved = true;
-this._modebarDragging = true;
-this._modebarMoved = true;
-bar.style.transition = "none";
-setZoomMenuOpen(false);
-setSelectMenuOpen(false);
-setExportMenuOpen(false);
-}
-const rootRect = root.getBoundingClientRect();
-const left = e.clientX - rootRect.left - modebarDrag.dx;
-const top = e.clientY - rootRect.top - modebarDrag.dy;
-this._clampModebar(left, top);
-});
-const endModebarDrag = (e) => {
-if (!modebarDrag || e.pointerId !== modebarDrag.pointerId) return;
-const moved = modebarDrag.moved;
-const cancelled = e.type === "pointercancel";
-modebarDrag = null;
-this._modebarDragging = false;
-bar.style.transition = "opacity .15s";
-setVisible(root.matches(":hover"));
-if (moved || cancelled) {
-suppressGripClickUntil = performance.now() + 100;
-}
-};
-this._listen(grip, "pointerup", endModebarDrag);
-this._listen(grip, "pointercancel", endModebarDrag);
-this._listen(grip, "click", (e) => {
-e.stopPropagation();
-if (performance.now() <= suppressGripClickUntil) {
-suppressGripClickUntil = 0;
-return;
-}
-setExportMenuOpen(!this._exportMenuOpen);
-});
-const mk = (name, title, onClick, toggles) => {
-const b = document.createElement("button");
-b.type = "button";
-b.title = title;
-b.setAttribute("aria-label", title);
-if (toggles) b.setAttribute("aria-pressed", "false");
-b.innerHTML = this._icon(name);
-b.style.cssText =
-"display:flex;align-items:center;justify-content:center;pointer-events:auto;";
-this._applySlot(b, "modebar_button");
-this._listen(b, "pointerdown", (e) => e.stopPropagation());
-this._listen(b, "click", (e) => { e.stopPropagation(); onClick(); });
-bar.appendChild(b);
-if (toggles) this._modeBtns[toggles] = b;
-return b;
-};
-const canNavigate = this._interactionFlag("navigation", true);
-const canPan = canNavigate && this._interactionFlag("pan", true);
-const canZoom = canNavigate && this._interactionFlag("zoom", true);
-const canZoomButtons = canZoom && this._interactionFlag("zoom_buttons", true);
-const canBoxZoom = canZoom && this._interactionFlag("box_zoom", true);
-const canReset = canNavigate && this._resetAxisPolicy().length > 0;
-const hasZoomMenu = canZoomButtons || canBoxZoom || canReset;
-let zoomTrigger = null;
-let zoomIndicator = null;
-this._zoomMenuButton = null;
-this._zoomMenuLabel = null;
-if (hasZoomMenu) {
-zoomTrigger = mk("zoommenu", "Zoom controls", () => {
-setZoomMenuOpen(!this._zoomMenuOpen);
-});
-this._zoomMenuButton = zoomTrigger;
-zoomTrigger.dataset.xyModebarMenuTrigger = "";
-zoomTrigger.replaceChildren();
-const zoomPercent = document.createElement("span");
-zoomPercent.dataset.xyModebarZoomPercent = "";
-zoomPercent.textContent = "100%";
-zoomTrigger.appendChild(zoomPercent);
-zoomIndicator = document.createElement("span");
-zoomIndicator.dataset.xyModebarMenuIndicator = "";
-zoomIndicator.innerHTML = this._icon("chevrondown");
-zoomTrigger.appendChild(zoomIndicator);
-this._zoomMenuLabel = zoomPercent;
-zoomTrigger.setAttribute("aria-haspopup", "menu");
-zoomTrigger.setAttribute("aria-expanded", "false");
-}
-const canSelect = this._interactionFlag("brush", true)
-&& this._interactionFlag("select", true);
-let selectTrigger = null;
-let selectIndicator = null;
-let selectModeIcon = null;
-if (canSelect) {
-selectTrigger = mk("select", "Selection controls", () => {
-setSelectMenuOpen(!this._selectMenuOpen);
-});
-selectTrigger.dataset.xyModebarSelect = "";
-selectTrigger.dataset.xyModebarSelectTrigger = "";
-selectTrigger.setAttribute("aria-haspopup", "menu");
-selectTrigger.setAttribute("aria-expanded", "false");
-selectTrigger.replaceChildren();
-selectModeIcon = document.createElement("span");
-selectModeIcon.dataset.xyModebarSelectIcon = "";
-selectModeIcon.innerHTML = this._icon("select");
-selectTrigger.appendChild(selectModeIcon);
-selectIndicator = document.createElement("span");
-selectIndicator.dataset.xyModebarMenuIndicator = "";
-selectIndicator.innerHTML = this._icon("chevrondown");
-selectTrigger.appendChild(selectIndicator);
-this._selectMenuButton = selectTrigger;
-this._selectMenuIcon = selectModeIcon;
-}
-if (canPan) mk("pan", "Pan", () => this._setDragMode("pan"), "pan");
-if (canNavigate && this._historyEnabled()) {
-this._historyBackBtn = mk("historyback", "Back to previous view",
-() => this._historyBack());
-this._historyBackBtn.dataset.xyModebarHistory = "back";
-this._historyForwardBtn = mk("historyforward", "Forward to next view",
-() => this._historyForward());
-this._historyForwardBtn.dataset.xyModebarHistory = "forward";
-this._updateHistoryButtons();
-}
-let zoomMenu = null;
-if (hasZoomMenu) {
-zoomMenu = document.createElement("div");
-zoomMenu.dataset.xyModebarMenu = "";
-zoomMenu.setAttribute("role", "menu");
-zoomMenu.setAttribute("aria-label", "Zoom controls");
-zoomMenu.style.cssText =
-"position:absolute;display:none;flex-direction:column;z-index:7;pointer-events:auto;";
-bar.appendChild(zoomMenu);
-}
-const zoomMenuItems = [];
-const mkZoomItem = (name, label, onClick, toggles, separator = false) => {
-const button = document.createElement("button");
-button.type = "button";
-button.tabIndex = -1;
-button.dataset.xyModebarMenuItem = name;
-if (separator) button.dataset.xySeparator = "";
-button.setAttribute("role", "menuitem");
-button.style.cssText =
-"display:flex;align-items:center;pointer-events:auto;";
-this._applySlot(button, "modebar_button");
-const icon = document.createElement("span");
-icon.dataset.xyModebarMenuIcon = "";
-icon.innerHTML = this._icon(name);
-button.appendChild(icon);
-const text = document.createElement("span");
-text.textContent = label;
-button.appendChild(text);
-this._listen(button, "pointerdown", (e) => e.stopPropagation());
-this._listen(button, "click", (e) => {
-e.stopPropagation();
-setZoomMenuOpen(false, true);
-onClick();
-});
-zoomMenu.appendChild(button);
-zoomMenuItems.push(button);
-if (toggles) this._modeBtns[toggles] = button;
-return button;
-};
-if (hasZoomMenu) {
-if (canZoomButtons) {
-mkZoomItem("zoomin", this._actionLabel("Zoom In", this._axisPolicy("zoom_axes")),
-() => this._zoomBy(0.5, true, "zoom_in"));
-mkZoomItem("zoomout", this._actionLabel("Zoom Out", this._axisPolicy("zoom_axes")),
-() => this._zoomBy(2, true, "zoom_out"));
-}
-if (canBoxZoom) {
-mkZoomItem("zoom", this._actionLabel("Box Zoom", this._axisPolicy("zoom_axes")),
-() => this._setDragMode("zoom"), "zoom");
-}
-if (canReset) {
-mkZoomItem("reset", this._actionLabel("Reset View", this._resetAxisPolicy()),
-() => this._resetView(true, "reset"), null, canZoomButtons || canBoxZoom);
-}
-}
-const selectMenu = document.createElement("div");
-selectMenu.dataset.xyModebarMenu = "";
-selectMenu.dataset.xyModebarSelectMenu = "";
-selectMenu.setAttribute("role", "menu");
-selectMenu.setAttribute("aria-label", "Selection controls");
-selectMenu.style.cssText =
-"position:absolute;display:none;flex-direction:column;z-index:7;pointer-events:auto;";
-bar.appendChild(selectMenu);
-const selectMenuItems = [];
-const mkSelectItem = (name, label, mode) => {
-const button = document.createElement("button");
-button.type = "button";
-button.tabIndex = -1;
-button.dataset.xyModebarMenuItem = name;
-button.dataset.xyModebarSelectItem = mode;
-button.setAttribute("role", "menuitem");
-button.style.cssText = "display:flex;align-items:center;pointer-events:auto;";
-this._applySlot(button, "modebar_button");
-const icon = document.createElement("span");
-icon.dataset.xyModebarMenuIcon = "";
-icon.innerHTML = this._icon(name);
-button.appendChild(icon);
-const text = document.createElement("span");
-text.textContent = label;
-button.appendChild(text);
-this._listen(button, "pointerdown", (e) => e.stopPropagation());
-this._listen(button, "click", (e) => {
-e.stopPropagation();
-setSelectMenuOpen(false, true);
-this._setDragMode(mode);
-});
-selectMenu.appendChild(button);
-selectMenuItems.push(button);
-this._modeBtns[mode] = button;
-};
-if (canSelect) {
-mkSelectItem("select", "Box Select", "select");
-mkSelectItem("lasso", "Lasso Select", "select-lasso");
-mkSelectItem("selectx", "X Range", "select-x");
-mkSelectItem("selecty", "Y Range", "select-y");
-}
-const exportMenu = document.createElement("div");
-exportMenu.dataset.xyModebarMenu = "";
-exportMenu.dataset.xyModebarExportMenu = "";
-exportMenu.setAttribute("role", "menu");
-exportMenu.setAttribute("aria-label", "Toolbar options");
-exportMenu.style.cssText =
-"position:absolute;display:none;flex-direction:column;z-index:7;pointer-events:auto;";
-bar.appendChild(exportMenu);
-const exportMenuItems = [];
-const mkExportItem = (name, label, onClick, separator = false) => {
-const button = document.createElement("button");
-button.type = "button";
-button.tabIndex = -1;
-button.dataset.xyModebarMenuItem = name;
-button.dataset.xyModebarExportItem = name;
-if (separator) button.dataset.xySeparator = "";
-button.setAttribute("role", "menuitem");
-button.style.cssText = "display:flex;align-items:center;pointer-events:auto;";
-this._applySlot(button, "modebar_button");
-const icon = document.createElement("span");
-icon.dataset.xyModebarMenuIcon = "";
-icon.innerHTML = this._icon(name);
-button.appendChild(icon);
-const text = document.createElement("span");
-text.textContent = label;
-button.appendChild(text);
-this._listen(button, "pointerdown", (e) => e.stopPropagation());
-this._listen(button, "click", (e) => {
-e.stopPropagation();
-setExportMenuOpen(false, true);
-Promise.resolve(onClick()).catch((error) => console.error(`xy: ${label} failed`, error));
-});
-exportMenu.appendChild(button);
-exportMenuItems.push(button);
-return button;
-};
-const EXPORT_ITEMS = {
-png: ["Export PNG", () => this._exportRaster("png")],
-jpeg: ["Export JPEG", () => this._exportRaster("jpeg")],
-webp: ["Export WebP", () => this._exportRaster("webp")],
-svg: ["Export SVG", () => this._exportSvg()],
-csv: ["Export CSV", () => this._exportCsv()],
-};
-const configuredFormats = Array.isArray(this._exportConfig().formats)
-? this._exportConfig().formats
-: ["png", "svg", "csv"];
-for (const name of configuredFormats) {
-const item = EXPORT_ITEMS[name];
-if (item) mkExportItem(name, item[0], item[1]);
-}
-if (zoomTrigger) {
-setZoomMenuOpen = (open, restoreFocus = false) => {
-const show = Boolean(open);
-if (show) {
-setSelectMenuOpen(false);
-setExportMenuOpen(false);
-}
-this._zoomMenuOpen = show;
-zoomTrigger.setAttribute("aria-expanded", String(show));
-if (!show) {
-zoomMenu.style.display = "none";
-zoomIndicator.style.transform = "none";
-if (restoreFocus) zoomTrigger.focus();
-return;
-}
-zoomMenu.style.display = "flex";
-zoomMenu.style.visibility = "hidden";
-const rootRect = root.getBoundingClientRect();
-const barRect = bar.getBoundingClientRect();
-const rootLeft = barRect.left - rootRect.left;
-const rootTop = barRect.top - rootRect.top;
-const below = bar.offsetHeight + 6;
-const above = -zoomMenu.offsetHeight - 6;
-const preferredTop = barRect.bottom + 6 + zoomMenu.offsetHeight <= rootRect.bottom
-? below
-: above;
-zoomIndicator.style.transform = preferredTop === above ? "rotate(180deg)" : "none";
-const maxLeft = root.clientWidth - rootLeft - zoomMenu.offsetWidth;
-const maxTop = root.clientHeight - rootTop - zoomMenu.offsetHeight;
-zoomMenu.style.left = `${Math.max(-rootLeft, Math.min(maxLeft, zoomTrigger.offsetLeft))}px`;
-zoomMenu.style.top = `${Math.max(-rootTop, Math.min(maxTop, preferredTop))}px`;
-zoomMenu.style.visibility = "visible";
-};
-}
-setSelectMenuOpen = (open, restoreFocus = false) => {
-if (!selectTrigger) return;
-const show = Boolean(open);
-if (show) {
-setZoomMenuOpen(false);
-setExportMenuOpen(false);
-}
-this._selectMenuOpen = show;
-selectTrigger.setAttribute("aria-expanded", String(show));
-if (!show) {
-selectMenu.style.display = "none";
-selectIndicator.style.transform = "none";
-if (restoreFocus) selectTrigger.focus();
-return;
-}
-selectMenu.style.display = "flex";
-selectMenu.style.visibility = "hidden";
-const rootRect = root.getBoundingClientRect();
-const barRect = bar.getBoundingClientRect();
-const rootLeft = barRect.left - rootRect.left;
-const rootTop = barRect.top - rootRect.top;
-const below = bar.offsetHeight + 6;
-const above = -selectMenu.offsetHeight - 6;
-const preferredTop = barRect.bottom + 6 + selectMenu.offsetHeight <= rootRect.bottom
-? below
-: above;
-selectIndicator.style.transform = preferredTop === above ? "rotate(180deg)" : "none";
-const maxLeft = root.clientWidth - rootLeft - selectMenu.offsetWidth;
-const maxTop = root.clientHeight - rootTop - selectMenu.offsetHeight;
-selectMenu.style.left = `${Math.max(-rootLeft, Math.min(maxLeft, selectTrigger.offsetLeft))}px`;
-selectMenu.style.top = `${Math.max(-rootTop, Math.min(maxTop, preferredTop))}px`;
-selectMenu.style.visibility = "visible";
-};
-setExportMenuOpen = (open, restoreFocus = false) => {
-const show = Boolean(open) && exportMenuItems.length > 0;
-if (show) {
-setZoomMenuOpen(false);
-setSelectMenuOpen(false);
-}
-this._exportMenuOpen = show;
-grip.setAttribute("aria-expanded", String(show));
-if (!show) {
-exportMenu.style.display = "none";
-if (restoreFocus) grip.focus();
-return;
-}
-exportMenu.style.display = "flex";
-exportMenu.style.visibility = "hidden";
-const rootRect = root.getBoundingClientRect();
-const barRect = bar.getBoundingClientRect();
-const rootLeft = barRect.left - rootRect.left;
-const rootTop = barRect.top - rootRect.top;
-const below = bar.offsetHeight + 6;
-const above = -exportMenu.offsetHeight - 6;
-const preferredTop = barRect.bottom + 6 + exportMenu.offsetHeight <= rootRect.bottom
-? below
-: above;
-const maxLeft = root.clientWidth - rootLeft - exportMenu.offsetWidth;
-const maxTop = root.clientHeight - rootTop - exportMenu.offsetHeight;
-exportMenu.style.left = `${Math.max(-rootLeft, Math.min(maxLeft, grip.offsetLeft))}px`;
-exportMenu.style.top = `${Math.max(-rootTop, Math.min(maxTop, preferredTop))}px`;
-exportMenu.style.visibility = "visible";
-};
-this._closeModebarMenu = () => {
-setZoomMenuOpen(false);
-setSelectMenuOpen(false);
-setExportMenuOpen(false);
-};
-this._syncModebarSelect = () => {
-if (!selectTrigger) return;
-const on = Boolean(this._pickable);
-if (!on) {
-setSelectMenuOpen(false);
-if (this.dragMode.startsWith("select")) this._setDragMode("pan");
-}
-selectTrigger.style.display = on ? "flex" : "none";
-};
-this._syncModebarSelect();
-this._listen(document, "pointerdown", (e) => {
-if (this._zoomMenuOpen && !bar.contains(e.target)) setZoomMenuOpen(false);
-if (this._selectMenuOpen && !bar.contains(e.target)) setSelectMenuOpen(false);
-if (this._exportMenuOpen && !bar.contains(e.target)) setExportMenuOpen(false);
-});
-if (zoomTrigger) {
-this._listen(zoomTrigger, "keydown", (e) => {
-if (e.key !== "ArrowDown" && e.key !== "ArrowUp") return;
-e.preventDefault();
-e.stopPropagation();
-setZoomMenuOpen(true);
-const index = e.key === "ArrowDown" ? 0 : zoomMenuItems.length - 1;
-zoomMenuItems[index].focus();
-});
-this._listen(zoomMenu, "keydown", (e) => {
-if (e.key === "Escape") {
-e.preventDefault();
-e.stopPropagation();
-setZoomMenuOpen(false, true);
-return;
-}
-if (!["ArrowDown", "ArrowUp", "Home", "End"].includes(e.key)) return;
-e.preventDefault();
-const current = zoomMenuItems.indexOf(document.activeElement);
-let next = e.key === "Home" ? 0 : e.key === "End" ? zoomMenuItems.length - 1 : current;
-if (e.key === "ArrowDown") next = (current + 1) % zoomMenuItems.length;
-if (e.key === "ArrowUp") next = (current - 1 + zoomMenuItems.length) % zoomMenuItems.length;
-zoomMenuItems[next].focus();
-});
-}
-if (selectTrigger) {
-this._listen(selectTrigger, "keydown", (e) => {
-if (e.key !== "ArrowDown" && e.key !== "ArrowUp") return;
-e.preventDefault();
-e.stopPropagation();
-setSelectMenuOpen(true);
-const index = e.key === "ArrowDown" ? 0 : selectMenuItems.length - 1;
-selectMenuItems[index].focus();
-});
-this._listen(selectMenu, "keydown", (e) => {
-if (e.key === "Escape") {
-e.preventDefault();
-e.stopPropagation();
-setSelectMenuOpen(false, true);
-return;
-}
-if (!["ArrowDown", "ArrowUp", "Home", "End"].includes(e.key)) return;
-e.preventDefault();
-const current = selectMenuItems.indexOf(document.activeElement);
-let next = e.key === "Home" ? 0 : e.key === "End" ? selectMenuItems.length - 1 : current;
-if (e.key === "ArrowDown") next = (current + 1) % selectMenuItems.length;
-if (e.key === "ArrowUp") {
-next = (current - 1 + selectMenuItems.length) % selectMenuItems.length;
-}
-selectMenuItems[next].focus();
-});
-}
-this._listen(grip, "keydown", (e) => {
-if (e.key !== "ArrowDown" && e.key !== "ArrowUp") return;
-if (!exportMenuItems.length) return;
-e.preventDefault();
-e.stopPropagation();
-setExportMenuOpen(true);
-const index = e.key === "ArrowDown" ? 0 : exportMenuItems.length - 1;
-exportMenuItems[index].focus();
-});
-this._listen(exportMenu, "keydown", (e) => {
-if (e.key === "Escape") {
-e.preventDefault();
-e.stopPropagation();
-setExportMenuOpen(false, true);
-return;
-}
-if (!["ArrowDown", "ArrowUp", "Home", "End"].includes(e.key)) return;
-e.preventDefault();
-const current = exportMenuItems.indexOf(document.activeElement);
-let next = e.key === "Home" ? 0 : e.key === "End" ? exportMenuItems.length - 1 : current;
-if (e.key === "ArrowDown") next = (current + 1) % exportMenuItems.length;
-if (e.key === "ArrowUp") {
-next = (current - 1 + exportMenuItems.length) % exportMenuItems.length;
-}
-exportMenuItems[next].focus();
-});
-root.appendChild(bar);
-this._fitModebar();
-setVisible(root.matches(":hover"));
-this._setDragMode(this.dragMode);
-},
-_fitModebar() {
-const bar = this._modebar;
-if (!bar) return;
-this._closeModebarMenu?.();
-if (!this._modebarMoved) {
-bar.style.top = `${this.plot.y + 4}px`;
-bar.style.left = `${this.plot.x + 4}px`;
-}
-bar.style.display = "flex";
-const fits =
-bar.offsetWidth + 8 <= this.plot.w && bar.offsetHeight + 8 <= this.plot.h;
-if (!fits) {
-bar.style.display = "none";
-return;
-}
-this._clampModebar();
-},
-_setDragMode(mode) {
-this.dragMode = mode;
-if (this.canvas) this.canvas.dataset.xyDragmode = mode;
-for (const [name, btn] of Object.entries(this._modeBtns || {})) {
-btn.classList.toggle("xy-active", name === mode);
-btn.setAttribute("aria-pressed", String(name === mode));
-}
-this._zoomMenuButton?.classList.toggle("xy-active", mode === "zoom");
-this._selectMenuButton?.classList.toggle("xy-active", mode.startsWith("select"));
-const selectionMode = {
-select: ["select", "Box Select"],
-"select-lasso": ["lasso", "Lasso Select"],
-"select-x": ["selectx", "X Range"],
-"select-y": ["selecty", "Y Range"],
-}[mode];
-if (selectionMode && this._selectMenuButton && this._selectMenuIcon) {
-const [iconName, label] = selectionMode;
-this._selectMenuIcon.innerHTML = this._icon(iconName);
-this._selectMenuButton.title = `Selection controls: ${label}`;
-this._selectMenuButton.setAttribute("aria-label", `Selection controls: ${label}`);
-}
-},
-_actionLabel(action, axes) {
-const ids = Array.isArray(axes) ? axes : [...axes || []];
-if (!ids.length) return action;
-return `${action} on ${ids.join(" and ")} ${ids.length === 1 ? "axis" : "axes"}`;
-},
-_updateZoomMenuLabel() {
-if (!this._zoomMenuLabel || !this.view || !this.view0) return;
-const axisPercent = (axisId, lo, hi, homeLo, homeHi) => {
-const axis = this._axis(axisId);
-const span = Math.abs(this._axisCoord(axis, hi) - this._axisCoord(axis, lo));
-const homeSpan = Math.abs(
-this._axisCoord(axis, homeHi) - this._axisCoord(axis, homeLo)
-);
-return Number.isFinite(span) && span > 0 && Number.isFinite(homeSpan) && homeSpan > 0
-? (homeSpan / span) * 100
-: null;
-};
-const zoomAxes = [...this._zoomAxes()];
-const percentages = zoomAxes.map((axisId) => {
-const [lo, hi] = this._axisRange(axisId);
-const [homeLo, homeHi] = this._axisRange(axisId, this.view0);
-return [axisId, axisPercent(axisId, lo, hi, homeLo, homeHi)];
-}).filter((entry) => entry[1] !== null);
-const percent = percentages[0]?.[1] ?? 100;
-const rounded = Math.round(percent);
-const exactText = percent < 1 ? "<1%" : `${rounded}%`;
-const displayText = rounded > 999 ? `${String(rounded).slice(0, 3)}…%` : exactText;
-if (this._zoomMenuLabel.dataset.xyZoomExact === exactText
-&& this._zoomMenuLabel.textContent === displayText) return;
-this._zoomMenuLabel.textContent = displayText;
-this._zoomMenuLabel.dataset.xyZoomExact = exactText;
-const details = percentages.map(([axisId, value]) => `${axisId} ${Math.round(value)}%`).join(", ");
-this._zoomMenuButton.title = `Zoom controls (${details || exactText})`;
-this._zoomMenuButton.setAttribute("aria-label", `Zoom controls, ${details || exactText}`);
-},
-_prefersReducedMotion() {
-return window.matchMedia?.("(prefers-reduced-motion: reduce)")?.matches === true;
-},
-_cancelViewAnimation() {
-if (this._animRaf) cancelAnimationFrame(this._animRaf);
-this._animRaf = null;
-this._viewAnim = null;
-},
-_setView(next, opts = {}) {
-if (this._destroyed) return [];
-const target = this._clampView(this._viewFrom(next), { anchors: opts.anchors });
-const changedAxes = this._axisIds().filter((axisId) => {
-const before = this._axisRange(axisId);
-const after = this._axisRange(axisId, target);
-return before[0] !== after[0] || before[1] !== after[1];
-});
-if (!changedAxes.length) return [];
-if (!this._viewAnim) {
-this._historyRecord({
-source: opts.source || "programmatic",
-interactionId: opts.interactionId,
-history: opts.history,
-});
-}
-const animate = opts.animate === true && !this._prefersReducedMotion();
-const duration = opts.duration || 180;
-if (!animate || duration <= 0) {
-this._cancelViewAnimation();
-this.view = target;
-this.draw();
-if (opts.request !== false) this._scheduleViewRequest();
-this._emitViewChange(opts.source || "programmatic", {
-axes: changedAxes,
-phase: opts.phase || "end",
-interactionId: opts.interactionId,
-broadcast: opts.broadcast,
-});
-return changedAxes;
-}
-clearTimeout(this._viewTimer);
-this.seq += 1;
-const request = opts.request !== false;
-const requestDelay = opts.requestDelay ?? Math.min(55, Math.max(24, duration * 0.35));
-const requestMaxWait = opts.requestMaxWait ?? 130;
-if (request) {
-this._scheduleViewRequest(target, { seq: this.seq, delay: requestDelay, maxWait: requestMaxWait });
-}
-const now = this._now();
-const tau = Math.max(18, duration / 5);
-if (this._viewAnim) {
-Object.assign(this._viewAnim, {
-target,
-tau,
-changedAxes: [...new Set([...this._viewAnim.changedAxes, ...changedAxes])],
-source: opts.source || "programmatic",
-phase: opts.phase || "end",
-interactionId: opts.interactionId,
-broadcast: opts.broadcast,
-});
-return changedAxes;
-}
-this._viewAnim = {
-target,
-last: now,
-tau,
-changedAxes,
-source: opts.source || "programmatic",
-phase: opts.phase || "end",
-interactionId: opts.interactionId,
-broadcast: opts.broadcast,
-};
-const lerp = (a, b, t) => a + (b - a) * t;
-const span = (v) => Math.max(
-...this._axisIds().map((axisId) => {
-const [lo, hi] = this._axisRange(axisId, v);
-return Math.abs(hi - lo);
-}),
-1e-12,
-);
-const closeEnough = (a, b) => {
-const tol = span(b) * 1e-4;
-return Math.max(...this._axisIds().flatMap((axisId) => {
-const ar = this._axisRange(axisId, a), br = this._axisRange(axisId, b);
-return [Math.abs(ar[0] - br[0]), Math.abs(ar[1] - br[1])];
-})) <= tol;
-};
-const step = (nowFrame) => {
-if (this._destroyed) { this._animRaf = null; return; }
-const anim = this._viewAnim;
-if (!anim) { this._animRaf = null; return; }
-const dt = Math.max(0, Math.min(64, nowFrame - anim.last));
-anim.last = nowFrame;
-const k = 1 - Math.exp(-dt / anim.tau);
-const t = closeEnough(this.view, anim.target) ? 1 : k;
-const ranges = {};
-for (const axisId of this._axisIds()) {
-const current = this._axisRange(axisId), targetRange = this._axisRange(axisId, anim.target);
-ranges[axisId] = [
-lerp(current[0], targetRange[0], t),
-lerp(current[1], targetRange[1], t),
-];
-}
-this.view = this._copyView({ ranges });
-if (t < 1) {
-this.draw();
-this._animRaf = requestAnimationFrame(step);
-} else {
-this._animRaf = null;
-this._viewAnim = null;
-this.view = anim.target;
-this._lastLabelDraw = null;
-this.draw();
-this._emitViewChange(anim.source, {
-axes: anim.changedAxes,
-phase: anim.phase,
-interactionId: anim.interactionId,
-broadcast: anim.broadcast,
-});
-}
-};
-this._animRaf = requestAnimationFrame(step);
-return changedAxes;
-},
-_zoomLimitForAxis(axisId) {
-if (!this._axisPolicy("zoom_axes").includes(axisId)) return [null, null];
-const configured = this.interaction?.zoom_limits;
-if (configured && typeof configured === "object" && !Array.isArray(configured)) {
-const pair = configured[axisId];
-if (Array.isArray(pair) && pair.length === 2) return pair;
-}
-return [1, null];
-},
-_clampAxisRange(axisId, lo, hi, anchorFrac = 0.5) {
-const axis = this._axis(axisId);
-let c0 = this._axisCoord(axis, lo), c1 = this._axisCoord(axis, hi);
-if (![c0, c1].every(Number.isFinite) || c0 === c1) return this._axisRange(axisId, this.view0);
-const home = this.view0?.ranges?.[axisId];
-if (home) {
-const h0 = this._axisCoord(axis, home[0]), h1 = this._axisCoord(axis, home[1]);
-const homeSpan = Math.abs(h1 - h0);
-const [minMagRaw, maxMagRaw] = this._zoomLimitForAxis(axisId);
-const minMag = Number(minMagRaw), maxMag = Number(maxMagRaw);
-const maxSpan = Number.isFinite(minMag) && minMag > 0 ? homeSpan / minMag : Infinity;
-const minSpan = Number.isFinite(maxMag) && maxMag > 0 ? homeSpan / maxMag : 0;
-const requestedSpan = Math.abs(c1 - c0);
-const limitedSpan = Math.max(minSpan, Math.min(maxSpan, requestedSpan));
-if (Number.isFinite(limitedSpan) && limitedSpan > 0 && limitedSpan !== requestedSpan) {
-const direction = c1 < c0 ? -1 : 1;
-const anchor = c0 + anchorFrac * (c1 - c0);
-c0 = anchor - anchorFrac * limitedSpan * direction;
-c1 = anchor + (1 - anchorFrac) * limitedSpan * direction;
-}
-}
-let boundLo = -Infinity, boundHi = Infinity;
-if (Array.isArray(axis.bounds) && axis.bounds.length === 2) {
-const b0 = this._axisCoord(axis, axis.bounds[0]);
-const b1 = this._axisCoord(axis, axis.bounds[1]);
-if (![c0, c1, b0, b1].every(Number.isFinite) || b0 === b1) return [lo, hi];
-boundLo = Math.min(b0, b1);
-boundHi = Math.max(b0, b1);
-}
-if (home && this._axisContained(axisId)) {
-const h0 = this._axisCoord(axis, home[0]);
-const h1 = this._axisCoord(axis, home[1]);
-if ([h0, h1].every(Number.isFinite) && h0 !== h1) {
-boundLo = Math.max(boundLo, Math.min(h0, h1));
-boundHi = Math.min(boundHi, Math.max(h0, h1));
-}
-}
-if (!Number.isFinite(boundLo) || !Number.isFinite(boundHi) || boundHi <= boundLo) {
-return [this._axisValue(axis, c0), this._axisValue(axis, c1)];
-}
-const reverse = c1 < c0;
-let outLo = Math.min(c0, c1), outHi = Math.max(c0, c1);
-if (outHi - outLo >= boundHi - boundLo) {
-outLo = boundLo;
-outHi = boundHi;
-} else {
-const shift = Math.max(boundLo - outLo, Math.min(boundHi - outHi, 0));
-outLo += shift;
-outHi += shift;
-}
-const first = reverse ? outHi : outLo;
-const second = reverse ? outLo : outHi;
-return [this._axisValue(axis, first), this._axisValue(axis, second)];
-},
-_clampView(view, opts = {}) {
-const candidate = this._viewFrom(view, this.view0);
-const ranges = {};
-for (const axisId of this._axisIds()) {
-const [lo, hi] = this._axisRange(axisId, candidate);
-ranges[axisId] = this._clampAxisRange(axisId, lo, hi, opts.anchors?.[axisId] ?? 0.5);
-}
-return this._copyView({ ranges });
-},
-_zoomAxes() {
-return new Set(this._axisPolicy("zoom_axes"));
-},
-_zoomBy(f, animate = false, source = f < 1 ? "zoom_in" : "zoom_out") {
-const base = this._viewAnim ? this._viewAnim.target : this.view;
-const axes = this._zoomAxes();
-const ranges = Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId, base)]])
-);
-for (const axisId of axes) {
-const [lo, hi] = ranges[axisId];
-const range = this._zoomAxisRange(axisId, lo, hi, f, 0.5);
-if (range) ranges[axisId] = range;
-}
-this._setView({ ranges }, {
-animate,
-source,
-phase: "end",
-interactionId: ++this._interactionSeq,
-});
-},
-_zoomAxisRange(axisId, lo, hi, f, anchorFrac) {
-const axis = this._axis(axisId);
-const c0 = this._axisCoord(axis, lo);
-const c1 = this._axisCoord(axis, hi);
-if (![c0, c1].every(Number.isFinite) || c0 === c1) return null;
-const ca = c0 + anchorFrac * (c1 - c0);
-if (f < 1) {
-const minSpan = Math.max(Math.abs(ca), 1e-30) * 1e-12;
-if (Math.abs((c1 - c0) * f) < minSpan) return null;
-}
-const next0 = ca - (ca - c0) * f;
-const next1 = ca + (c1 - ca) * f;
-if (f > 1 && this.view0) {
-const home = this._axisRange(axisId, this.view0);
-const home0 = this._axisCoord(axis, home[0]);
-const home1 = this._axisCoord(axis, home[1]);
-const homeSpan = Math.abs(home1 - home0);
-if ([home0, home1].every(Number.isFinite)
-&& homeSpan > 0
-&& Math.abs(next1 - next0) > homeSpan) {
-const signedHome = homeSpan * Math.sign(next1 - next0);
-return [
-this._axisValue(axis, ca - anchorFrac * signedHome),
-this._axisValue(axis, ca + (1 - anchorFrac) * signedHome),
-];
-}
-}
-return [
-this._axisValue(axis, next0),
-this._axisValue(axis, next1),
-];
-},
-_zoomAt(f, fx, fy, animate = false, duration = 120, opts = {}) {
-const base = this._viewAnim ? this._viewAnim.target : this.view;
-const axes = Array.isArray(opts.axes)
-? new Set(opts.axes.filter((axisId) => this._zoomAxes().has(axisId)))
-: this._zoomAxes();
-const ranges = Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId, base)]])
-);
-const anchors = {};
-for (const axisId of axes) {
-const anchor = this._axisDim(axisId) === "x" ? fx : fy;
-const [lo, hi] = ranges[axisId];
-const range = this._zoomAxisRange(axisId, lo, hi, f, anchor);
-if (range) ranges[axisId] = range;
-anchors[axisId] = anchor;
-}
-return this._setView({ ranges }, {
-animate,
-duration,
-anchors,
-source: opts.source || "wheel_zoom",
-phase: opts.phase || "update",
-interactionId: opts.interactionId,
-});
-},
-_queueWheelZoom(factor, fx, fy, axesScope = null) {
-if (!Number.isFinite(factor) || factor <= 0) return;
-clearTimeout(this._wheelZoomEndTimer);
-this._wheelZoomEndTimer = null;
-const scopeKey = Array.isArray(axesScope) ? axesScope.join(",") : "";
-if (this._wheelGesture && this._wheelGesture.scopeKey !== scopeKey) {
-const gesture = this._wheelGesture;
-this._wheelGesture = null;
-if (gesture.axes.size) {
-this._emitViewChange("wheel_zoom", {
-axes: [...gesture.axes],
-phase: "end",
-interactionId: gesture.interactionId,
-});
-}
-}
-if (!this._wheelGesture) {
-this._wheelGesture = {
-interactionId: ++this._interactionSeq,
-axes: new Set(),
-scopeKey,
-};
-}
-if (!this._pendingWheelZoom) {
-this._pendingWheelZoom = {
-factor: 1,
-fx,
-fy,
-interactionId: this._wheelGesture.interactionId,
-axes: [],
-axesScope,
-};
-}
-this._pendingWheelZoom.factor *= factor;
-this._pendingWheelZoom.fx = fx;
-this._pendingWheelZoom.fy = fy;
-this._pendingWheelZoom.axesScope = axesScope;
-if (this._wheelZoomRaf) return;
-this._wheelZoomRaf = requestAnimationFrame(() => {
-this._wheelZoomRaf = null;
-const pending = this._pendingWheelZoom;
-this._pendingWheelZoom = null;
-if (!pending || this._destroyed) return;
-pending.axes = this._zoomAt(pending.factor, pending.fx, pending.fy, false, 120, {
-source: "wheel_zoom",
-phase: "update",
-interactionId: pending.interactionId,
-axes: pending.axesScope || undefined,
-}) || [];
-for (const axisId of pending.axes) this._wheelGesture?.axes.add(axisId);
-clearTimeout(this._wheelZoomEndTimer);
-this._wheelZoomEndTimer = setTimeout(() => {
-const gesture = this._wheelGesture;
-this._wheelGesture = null;
-if (this._destroyed || !gesture || !gesture.axes.size) return;
-this._emitViewChange("wheel_zoom", {
-axes: [...gesture.axes],
-phase: "end",
-interactionId: gesture.interactionId,
-});
-}, 90);
-});
-},
-_zoomToBox(d0, d1, animate = false, opts = {}) {
-const axes = this._zoomAxes();
-const fractions = {};
-for (const dim of ["x", "y"]) {
-const primary = this._axis(dim);
-const [lo, hi] = this._axisRange(dim);
-const c0 = this._axisCoord(primary, lo), c1 = this._axisCoord(primary, hi);
-const first = this._axisCoord(primary, d0[dim === "x" ? 0 : 1]);
-const second = this._axisCoord(primary, d1[dim === "x" ? 0 : 1]);
-if (![c0, c1, first, second].every(Number.isFinite) || c0 === c1) return [];
-fractions[dim] = [(first - c0) / (c1 - c0), (second - c0) / (c1 - c0)];
-}
-const ranges = Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId)]])
-);
-const anchors = {};
-for (const axisId of axes) {
-const axis = this._axis(axisId);
-const [lo, hi] = ranges[axisId];
-const c0 = this._axisCoord(axis, lo), c1 = this._axisCoord(axis, hi);
-const [f0, f1] = fractions[this._axisDim(axisId)];
-const a = c0 + f0 * (c1 - c0), b = c0 + f1 * (c1 - c0);
-const minSpan = Math.max(Math.abs(a), Math.abs(b), 1e-30) * 1e-12;
-if (!Number.isFinite(a) || !Number.isFinite(b) || Math.abs(b - a) < minSpan) continue;
-const reverse = c1 < c0;
-const low = Math.min(a, b), high = Math.max(a, b);
-ranges[axisId] = [
-this._axisValue(axis, reverse ? high : low),
-this._axisValue(axis, reverse ? low : high),
-];
-anchors[axisId] = 0.5;
-}
-return this._setView({ ranges }, {
-animate,
-anchors,
-source: opts.source || "box_zoom",
-phase: opts.phase || "end",
-interactionId: opts.interactionId,
-});
-},
-_resetView(animate = true, source = "reset", axesOverride = null) {
-const ranges = Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId)]])
-);
-for (const axisId of axesOverride || this._resetAxisPolicy()) {
-ranges[axisId] = [...this._axisRange(axisId, this.view0)];
-}
-return this._setView({ ranges }, {
-animate,
-source,
-phase: "end",
-interactionId: ++this._interactionSeq,
-});
-},
-_exportConfig() {
-const config = this.spec && this.spec.export;
-return config && typeof config === "object" ? config : {};
-},
-_exportFilename(extension) {
-const configured = this._exportConfig().filename;
-if (typeof configured === "string" && configured) return `${configured}.${extension}`;
-const title = String(this.spec.title || "xy-chart")
-.trim()
-.toLowerCase()
-.replace(/[^a-z0-9]+/g, "-")
-.replace(/^-+|-+$/g, "") || "xy-chart";
-return `${title}.${extension}`;
-},
-_downloadExport(blob, filename) {
-const url = URL.createObjectURL(blob);
-const link = document.createElement("a");
-link.href = url;
-link.download = filename;
-link.style.display = "none";
-document.body.appendChild(link);
-link.click();
-link.remove();
-setTimeout(() => URL.revokeObjectURL(url), 0);
-},
-_exportSvgMarkup() {
-this._drawNow?.();
-this.gl?.finish?.();
-const width = this.size.w;
-const height = this.size.h;
-const clone = this.root.cloneNode(true);
-clone.style.width = `${width}px`;
-clone.style.height = `${height}px`;
-clone.style.margin = "0";
-clone.setAttribute("xmlns", "http://www.w3.org/1999/xhtml");
-const computed = getComputedStyle(this.root);
-const inheritedProperties = [
-"color", "font-family", "font-size", "font-style", "font-weight",
-"letter-spacing", "line-height",
-];
-const chartTokens = [
-"--chart-bg", "--chart-text", "--chart-grid", "--chart-axis",
-"--chart-tooltip-bg", "--chart-tooltip-text", "--chart-legend-bg",
-"--chart-badge-bg", "--chart-badge-text", "--chart-modebar-bg",
-"--chart-modebar-active", "--chart-selection", "--chart-selection-fill",
-"--chart-zoom-selection", "--chart-zoom-selection-fill", "--chart-crosshair",
-"--chart-annotation-text", "--chart-cursor", "--chart-cursor-pan",
-];
-for (let i = 0; i < computed.length; i++) {
-const property = computed.item(i);
-if (!property.startsWith("--")) continue;
-const value = computed.getPropertyValue(property).trim();
-if (value) clone.style.setProperty(property, value);
-}
-for (const property of [...inheritedProperties, ...chartTokens]) {
-const value = computed.getPropertyValue(property).trim();
-if (value) clone.style.setProperty(property, value);
-}
-const sourceCanvases = [...this.root.querySelectorAll("canvas")];
-const clonedCanvases = [...clone.querySelectorAll("canvas")];
-for (let i = 0; i < clonedCanvases.length; i++) {
-const source = sourceCanvases[i];
-const target = clonedCanvases[i];
-if (!source || !target) continue;
-const image = document.createElement("img");
-image.setAttribute("src", source.toDataURL("image/png"));
-image.setAttribute("alt", "");
-image.setAttribute("style", target.getAttribute("style") || "");
-image.setAttribute("width", String(source.clientWidth || source.width));
-image.setAttribute("height", String(source.clientHeight || source.height));
-for (const attr of target.attributes) {
-if (attr.name.startsWith("data-")) image.setAttribute(attr.name, attr.value);
-}
-target.replaceWith(image);
-}
-clone.querySelectorAll(
-'[data-xy-slot="modebar"],[data-xy-slot="tooltip"],' +
-'[data-xy-slot="selection"],[data-xy-selection-lasso-overlay],' +
-'[data-xy-slot="crosshair_x"],[data-xy-slot="crosshair_y"]'
-).forEach((node) => node.remove());
-const stylesheet = document.createElement("style");
-stylesheet.textContent = XY_CHROME_CSS;
-clone.prepend(stylesheet);
-const content = new XMLSerializer().serializeToString(clone);
-return `<svg xmlns="http://www.w3.org/2000/svg" width="${width}" height="${height}" ` +
-`viewBox="0 0 ${width} ${height}"><foreignObject width="100%" height="100%">` +
-`${content}</foreignObject></svg>`;
-},
-_exportSvg() {
-const svg = this._exportSvgMarkup();
-this._downloadExport(
-new Blob([svg], { type: "image/svg+xml;charset=utf-8" }),
-this._exportFilename("svg")
-);
-},
-_exportPng() {
-return this._exportRaster("png");
-},
-_exportRaster(format) {
-const svg = this._exportSvgMarkup();
-const sourceUrl = `data:image/svg+xml;charset=utf-8,${encodeURIComponent(svg)}`;
-const image = new Image();
-const config = this._exportConfig();
-const mime = { png: "image/png", jpeg: "image/jpeg", webp: "image/webp" }[format];
-if (!mime) return Promise.reject(new Error(`unsupported raster export ${format}`));
-return new Promise((resolve, reject) => {
-image.onload = () => {
-const scale = Number.isFinite(config.scale) && config.scale > 0
-? config.scale
-: Math.max(1, window.devicePixelRatio || 1);
-const canvas = document.createElement("canvas");
-canvas.width = Math.round(this.size.w * scale);
-canvas.height = Math.round(this.size.h * scale);
-const ctx = canvas.getContext("2d");
-const configured = typeof config.background === "string" &&
-config.background !== "auto" ? config.background : null;
-const transparent = configured === "transparent" || configured === "none";
-if (format === "jpeg") {
-ctx.fillStyle = configured && !transparent ? configured : "#ffffff";
-ctx.fillRect(0, 0, canvas.width, canvas.height);
-} else if (configured && !transparent) {
-ctx.fillStyle = configured;
-ctx.fillRect(0, 0, canvas.width, canvas.height);
-}
-ctx.scale(scale, scale);
-ctx.drawImage(image, 0, 0, this.size.w, this.size.h);
-const quality = Number.isFinite(config.quality)
-? Math.min(1, Math.max(0.01, config.quality / 100))
-: 0.9;
-canvas.toBlob((blob) => {
-if (!blob) {
-reject(new Error(`${format.toUpperCase()} encoding returned no data`));
-return;
-}
-const actual = blob.type === "image/jpeg" ? "jpg"
-: blob.type === "image/webp" ? "webp"
-: "png";
-this._downloadExport(blob, this._exportFilename(actual));
-resolve();
-}, mime, format === "png" ? undefined : quality);
-};
-image.onerror = () => {
-reject(new Error("chart SVG could not be rasterized"));
-};
-image.src = sourceUrl;
-});
-},
-_exportCsvText() {
-const columns = ["trace", "name", "kind", "index", "x", "y", "x0", "x1", "y0", "y1", "value"];
-const rows = [columns];
-const clean = (value) => Number.isFinite(value) ? value : "";
-for (const g of this.gpuTraces || []) {
-const trace = g.trace || {};
-const prefix = [trace.id ?? "", trace.name ?? "", trace.kind ?? ""];
-if (g._cpuRect) {
-const r = g._cpuRect;
-const n = Math.min(r.x0.length, r.x1.length, r.y0.length, r.y1.length);
-for (let i = 0; i < n; i++) {
-rows.push([...prefix, i, "", "",
-clean(this._decodeValue(r.x0, r.x0Meta, i)),
-clean(this._decodeValue(r.x1, r.x1Meta, i)),
-clean(this._decodeValue(r.y0, r.y0Meta, i)),
-clean(this._decodeValue(r.y1, r.y1Meta, i)), ""]);
-}
-continue;
-}
-if (g.heatmap && g._cpuHeatmap) {
-const h = g.heatmap;
-for (let i = 0; i < g._cpuHeatmap.grid.length; i++) {
-const row = Math.floor(i / h.w);
-const col = i % h.w;
-const x = h.xRange[0] + (col + 0.5) * ((h.xRange[1] - h.xRange[0]) / h.w);
-const y = h.yRange[0] + (row + 0.5) * ((h.yRange[1] - h.yRange[0]) / h.h);
-const value = this._denormalizeUnit(g._cpuHeatmap.grid[i], trace.color?.domain);
-rows.push([...prefix, i, clean(x), clean(y), "", "", "", "", clean(value)]);
-}
-continue;
-}
-const cpu = g._cpu;
-if (!cpu?.x || !cpu?.y) continue;
-const n = Math.min(cpu.x.length, cpu.y.length, g.n || Infinity);
-for (let i = 0; i < n; i++) {
-rows.push([...prefix, i,
-clean(this._decodeValue(cpu.x, cpu.xMeta || g.xMeta, i)),
-clean(this._decodeValue(cpu.y, cpu.yMeta || g.yMeta, i)),
-"", "", "", "", ""]);
-}
-}
-const quote = (value) => {
-const text = String(value ?? "");
-const escaped = text.split('"').join('""');
-return text.includes(",") || text.includes('"') || text.includes("\r") || text.includes("\n")
-? `"${escaped}"`
-: text;
-};
-return rows.map((row) => row.map(quote).join(",")).join("\r\n") + "\r\n";
-},
-_exportCsv() {
-this._downloadExport(
-new Blob([this._exportCsvText()], { type: "text/csv;charset=utf-8" }),
-this._exportFilename("csv")
-);
-},
-_icon(name) {
-const svg = (body) =>
-`<svg width="15" height="15" viewBox="0 0 20 20" fill="none" ` +
-`stroke="currentColor" stroke-width="1.6" stroke-linecap="round" ` +
-`stroke-linejoin="round">${body}</svg>`;
-switch (name) {
-case "zoomin":
-return svg('<circle cx="8.5" cy="8.5" r="5.5"/><path d="M12.5 12.5 L17 17"/>' +
-'<path d="M8.5 6 V11 M6 8.5 H11"/>');
-case "zoomout":
-return svg('<circle cx="8.5" cy="8.5" r="5.5"/><path d="M12.5 12.5 L17 17"/>' +
-'<path d="M6 8.5 H11"/>');
-case "pan":
-return svg('<path d="M10 3 V17 M3 10 H17"/><path d="M10 3 L8 5 M10 3 L12 5"/>' +
-'<path d="M10 17 L8 15 M10 17 L12 15"/><path d="M3 10 L5 8 M3 10 L5 12"/>' +
-'<path d="M17 10 L15 8 M17 10 L15 12"/>');
-case "zoom":
-return svg('<path d="M7 3.5 H3.5 V7 M13 3.5 H16.5 V7 ' +
-'M3.5 13 V16.5 H7 M16.5 13 V16.5 H13"/>');
-case "select":
-return svg('<path d="M7 4 H4 V7 M13 4 H16 V7 M4 13 V16 H7 ' +
-'M16 13 V16 H13"/><circle cx="7" cy="8" r="1" fill="currentColor" ' +
-'stroke="none"/><circle cx="12.5" cy="9" r="1" fill="currentColor" stroke="none"/>' +
-'<circle cx="9.5" cy="13" r="1" fill="currentColor" stroke="none"/>');
-case "lasso":
-return svg('<path d="M5 5.5 C7 3 13.5 3.5 15.5 7 C17 10 14 15.5 9 15.5 ' +
-'C4.5 15.5 2.5 11 4 7.5 Z"/><circle cx="5" cy="5.5" r="1" ' +
-'fill="currentColor" stroke="none"/><circle cx="15.5" cy="7" r="1" ' +
-'fill="currentColor" stroke="none"/><circle cx="9" cy="15.5" r="1" ' +
-'fill="currentColor" stroke="none"/>');
-case "selectx":
-return svg('<path d="M5 4 V16 M15 4 V16 M7 10 H13 ' +
-'M7 10 L9 8 M7 10 L9 12 M13 10 L11 8 M13 10 L11 12"/>');
-case "selecty":
-return svg('<path d="M4 5 H16 M4 15 H16 M10 7 V13 ' +
-'M10 7 L8 9 M10 7 L12 9 M10 13 L8 11 M10 13 L12 11"/>');
-case "chevrondown":
-return svg('<path d="M6 8 L10 12 L14 8"/>');
-case "collapse":
-return svg('<path d="M4 5 H16 M4 15 H16 M7 8 L10 11 L13 8"/>');
-case "expand":
-return svg('<path d="M4 5 H16 M4 15 H16 M7 12 L10 9 L13 12"/>');
-case "png":
-return svg('<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/>' +
-'<path d="M7 13 L9 10.5 L11 12 L13.5 9 V15 H7 Z"/>');
-case "jpeg":
-return svg('<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/>' +
-'<circle cx="8.5" cy="10" r="1.2"/><path d="M7 15 L10 12 L13.5 15 Z"/>');
-case "webp":
-return svg('<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/>' +
-'<path d="M7 11 C8 10 9 10 10 11 C11 12 12 12 13.5 11"/>' +
-'<path d="M7 14 C8 13 9 13 10 14 C11 15 12 15 13.5 14"/>');
-case "svg":
-return svg('<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/>' +
-'<path d="M7 13 L9 9 L11 14 L13.5 10"/>');
-case "csv":
-return svg('<path d="M5 2.5 H12 L15.5 6 V17.5 H5 Z"/><path d="M12 2.5 V6 H15.5"/>' +
-'<path d="M7 9 H13 M7 12 H13 M7 15 H13 M9 8 V16"/>');
-case "reset":
-return svg('<path d="M4 10 a6 6 0 1 1 1.8 4.3"/><path d="M4 6 V10 H8"/>');
-case "historyback":
-return svg('<path d="M13 4 L7 10 L13 16"/>');
-case "historyforward":
-return svg('<path d="M7 4 L13 10 L7 16"/>');
-case "drag":
-return svg('<circle cx="7" cy="5" r=".8" fill="currentColor" stroke="none"/>' +
-'<circle cx="13" cy="5" r=".8" fill="currentColor" stroke="none"/>' +
-'<circle cx="7" cy="10" r=".8" fill="currentColor" stroke="none"/>' +
-'<circle cx="13" cy="10" r=".8" fill="currentColor" stroke="none"/>' +
-'<circle cx="7" cy="15" r=".8" fill="currentColor" stroke="none"/>' +
-'<circle cx="13" cy="15" r=".8" fill="currentColor" stroke="none"/>');
-default:
-return svg("");
-}
-},
-});
-Object.assign(ChartView.prototype, {
-_scheduleViewRequest(viewOverride = this.view, opts = {}) {
-if (this._destroyed || this._glLost) return;
-if (!this.comm) {
-this._scheduleSampleRebin(viewOverride, opts);
-return;
-}
-const needsDecimated = this.spec.traces.some((t) => t.tier === "decimated");
-const needsDensity = this.gpuTraces.some((g) => g.tier === "density");
-if (!needsDecimated && !needsDensity) return;
-const seq = opts.seq ?? ++this.seq;
-const view = this._copyView(viewOverride);
-const plotW = Math.round(this.plot.w);
-const plotH = Math.round(this.plot.h);
-if (needsDensity) {
-const now = this._now();
-for (const g of this.gpuTraces) {
-if (g.tier !== "density") continue;
-g._lodPendingView = view;
-g._lodPendingSeq = seq;
-g._lodPendingAt = now;
-}
-}
-let delay = opts.delay ?? 120;
-if (opts.maxWait !== undefined && opts.maxWait !== null) {
-const now = this._now();
-if (this._viewRequestBurstStart === undefined || this._viewRequestBurstStart === null) {
-this._viewRequestBurstStart = now;
-}
-const remaining = opts.maxWait - (now - this._viewRequestBurstStart);
-delay = remaining <= 0 ? 0 : Math.min(delay, remaining);
-} else {
-this._viewRequestBurstStart = null;
-}
-clearTimeout(this._viewTimer);
-const send = () => {
-if (this._destroyed) return;
-this._viewRequestBurstStart = null;
-if (seq !== this.seq) return;
-if (needsDecimated) {
-this.comm.send({
-type: "view", seq,
-x0: Math.min(view.x0, view.x1), x1: Math.max(view.x0, view.x1), px: plotW,
-});
-}
-if (needsDensity) {
-for (const g of this.gpuTraces) {
-if (g.tier !== "density") continue;
-const [x0, x1] = this._axisRange(g.xAxis, view);
-const [y0, y1] = this._axisRange(g.yAxis, view);
-this.comm.send({
-type: "density_view", seq, trace: g.trace.id,
-x0: Math.min(x0, x1), x1: Math.max(x0, x1),
-y0: Math.min(y0, y1), y1: Math.max(y0, y1),
-w: plotW, h: plotH,
-});
-}
-}
-};
-if (delay <= 0) {
-send();
-} else {
-this._viewTimer = setTimeout(send, delay);
-}
-return seq;
-},
-_scheduleSampleRebin(viewOverride = this.view, opts = {}) {
-if (this._destroyed || this._glLost || this._sampleRebinDisabled) return;
-const targets = (this.gpuTraces || []).filter(
-(g) => g.tier === "density" && g.sampleOverlay && g.sampleOverlay._cpu
-);
-if (!targets.length) return;
-const seq = opts.seq ?? ++this.seq;
-const view = this._copyView(viewOverride);
-clearTimeout(this._rebinTimer);
-this._rebinTimer = setTimeout(() => {
-if (this._destroyed || seq !== this.seq) return;
-for (const g of targets) this._requestSampleRebin(g, view, seq);
-}, opts.delay ?? 120);
-},
-_requestSampleRebin(g, view, seq) {
-if (!g._homeDensity) g._homeDensity = g.density;
-const [vx0, vx1] = this._axisRange(g.xAxis, view);
-const [vy0, vy1] = this._axisRange(g.yAxis, view);
-const [hx0, hx1] = this._axisRange(g.xAxis, this.view0);
-const [hy0, hy1] = this._axisRange(g.yAxis, this.view0);
-const homeSpanX = Math.max(Math.abs(hx1 - hx0), 1e-300);
-const homeSpanY = Math.max(Math.abs(hy1 - hy0), 1e-300);
-const viewSpanX = Math.abs(vx1 - vx0);
-const viewSpanY = Math.abs(vy1 - vy0);
-const notZoomedIn =
-viewSpanX >= homeSpanX * (1 - 1e-6) && viewSpanY >= homeSpanY * (1 - 1e-6);
-if (notZoomedIn) {
-if (g.density !== g._homeDensity) {
-const hd = g._homeDensity;
-this._applySampleRebinGrid(g, {
-...hd,
-tex: this._uploadGrid(hd.grid, hd.w, hd.h, hd.normMax || hd.max || 1),
-}, false);
-}
-return;
-}
-if (this._sampleRebinDisabled) return;
-if (!this._rebinWorker) {
-this._rebinWorker = xyCreateRebinWorker();
-if (!this._rebinWorker) {
-this._sampleRebinDisabled = true;
-return;
-}
-this._rebinWorker.onmessage = (e) => this._onRebinResult(e.data);
-this._rebinInit = new Set();
-}
-if (!this._rebinInit.has(g.trace.id)) {
-const cpu = g.sampleOverlay._cpu;
-const n = Math.min(cpu.x.length, cpu.y.length);
-const xs = new Float64Array(n);
-const ys = new Float64Array(n);
-for (let i = 0; i < n; i++) {
-xs[i] = this._decodeValue(cpu.x, cpu.xMeta, i);
-ys[i] = this._decodeValue(cpu.y, cpu.yMeta, i);
-}
-this._rebinWorker.postMessage(
-{ type: "init", trace: g.trace.id, x: xs.buffer, y: ys.buffer },
-[xs.buffer, ys.buffer]
-);
-this._rebinInit.add(g.trace.id);
-}
-this._rebinWorker.postMessage({
-type: "rebin", trace: g.trace.id, seq,
-x0: Math.min(vx0, vx1), x1: Math.max(vx0, vx1),
-y0: Math.min(vy0, vy1), y1: Math.max(vy0, vy1),
-w: Math.max(16, Math.min(2048, Math.round(this.plot.w))),
-h: Math.max(16, Math.min(2048, Math.round(this.plot.h))),
-});
-},
-_onRebinResult(msg) {
-if (this._destroyed || this._glLost || !msg || msg.type !== "grid" || msg.seq !== this.seq) return;
-const g = this.gpuTraces.find((t) => t.trace.id === msg.trace && t.tier === "density");
-if (!g) return;
-const grid = new Float32Array(msg.grid);
-this._applySampleRebinGrid(g, {
-w: msg.w, h: msg.h, max: msg.max, normMax: msg.max,
-colormap: g.density.colormap,
-xRange: [msg.x0, msg.x1], yRange: [msg.y0, msg.y1],
-grid,
-tex: this._uploadGrid(grid, msg.w, msg.h, msg.max || 1),
-lut: g.density.lut,
-}, true);
-},
-_applySampleRebinGrid(g, density, rebinned) {
-g.prevDensity = g.density;
-g._densityFadeStart = this._now();
-g.densityNormMax = density.normMax || density.max;
-g.density = density;
-g._sampleRebinned = !!rebinned;
-lodRememberDensity(this, g, g.density);
-this._refreshReductionBadges();
-this.draw();
-},
-_applyAppend(msg, buffers) {
-const spec = msg.spec;
-const blobRaw = buffers && buffers[0];
-if (!spec || !blobRaw || !spec.traces) return;
-const blob = bytesToSpan(blobRaw);
-const spanEps = (lo, hi) => Math.max(Math.abs(hi - lo), 1e-300) * 1e-9;
-const ex = spanEps(this.view0.x0, this.view0.x1);
-const ey = spanEps(this.view0.y0, this.view0.y1);
-const atHome =
-Math.abs(this.view.x0 - this.view0.x0) <= ex && Math.abs(this.view.x1 - this.view0.x1) <= ex &&
-Math.abs(this.view.y0 - this.view0.y0) <= ey && Math.abs(this.view.y1 - this.view0.y1) <= ey;
-const pinnedRight = !atHome && Math.abs(this.view.x1 - this.view0.x1) <= ex;
-const nextHome = {
-x0: spec.x_axis.range[0], x1: spec.x_axis.range[1],
-y0: spec.y_axis.range[0], y1: spec.y_axis.range[1],
-};
-let nextView = { ...this.view };
-if (atHome) {
-nextView = { ...nextHome };
-} else if (pinnedRight) {
-const w = this.view.x1 - this.view.x0;
-nextView = { ...this.view, x1: nextHome.x1, x0: nextHome.x1 - w };
-}
-const animated = !!spec.animation || spec.traces.some((trace) => !!trace.animation);
-if (animated && !this._glLost && this.gl && this.updatePayload(spec, blob)) {
-if (this._transitionView) this._transitionView.to = { ...nextView };
-else this.view = { ...nextView };
-this._scheduleViewRequest(nextView, { delay: 0 });
-return;
-}
-this.spec = spec;
-this.axes = this._normalizeAxes(spec);
-this._payload = blob;
-this.view0 = this._copyView({
-ranges: Object.fromEntries(Object.entries(this.axes).map(([id, axis]) => [id, [...axis.range]])),
-});
-if (atHome) {
-this.view = this._copyView(this.view0);
-} else if (pinnedRight) {
-const w = this.view.x1 - this.view.x0;
-this.view = this._viewFrom({ x1: this.view0.x1, x0: this.view0.x1 - w });
-}
-if (this._glLost || !this.gl) return;
-const texSeen = new Set();
-for (const id of msg.affected || []) {
-const i = this.gpuTraces.findIndex((g) => g.trace.id === id);
-const ts = spec.traces.find((t) => t.id === id);
-if (i < 0 || !ts) continue;
-this._destroyTraceResources(this.gpuTraces[i], texSeen);
-this.gpuTraces[i] = this._buildTrace(blob, ts);
-}
-this._updatePickable();
-this._scheduleViewRequest(this.view, { delay: 0 });
-this.draw();
-},
-_onKernelMsg(msg, buffers) {
-if (this._destroyed) return;
-if (!msg) return;
-if (this._glLost && msg.type !== "append" && msg.type !== "pick_result") return;
-if (msg.type === "tier_update") {
-if (msg.seq !== this.seq) return;
-for (const upd of msg.traces) {
-const g = this.gpuTraces.find((t) => t.trace.id === upd.id);
-if (!g) continue;
-const gl = this.gl;
-const xArr = this._asF32(buffers[upd.x.buf]);
-const yArr = this._asF32(buffers[upd.y.buf]);
-const bArr = upd.base && g.baseBuf ? this._asF32(buffers[upd.base.buf]) : null;
-let n = Math.min(upd.x.len, upd.y.len);
-if (bArr) n = Math.min(n, upd.base.len);
-const sm = this._smoothArrays(g.trace, xArr, yArr, bArr, n);
-const src = sm || { x: xArr, y: yArr, n };
-const st = this._stepArrays(g.trace, src.x, src.y, src.n);
-gl.bindBuffer(gl.ARRAY_BUFFER, g.xBuf);
-gl.bufferData(gl.ARRAY_BUFFER, st ? st.x : src.x, gl.STATIC_DRAW);
-gl.bindBuffer(gl.ARRAY_BUFFER, g.yBuf);
-gl.bufferData(gl.ARRAY_BUFFER, st ? st.y : src.y, gl.STATIC_DRAW);
-g.xMeta = { ...g.xMeta, offset: upd.x.offset, scale: upd.x.scale };
-g.yMeta = { ...g.yMeta, offset: upd.y.offset, scale: upd.y.scale };
-g._dashX = st ? st.x : src.x;
-g._dashY = st ? st.y : src.y;
-if (bArr) {
-gl.bindBuffer(gl.ARRAY_BUFFER, g.baseBuf);
-gl.bufferData(gl.ARRAY_BUFFER, sm ? sm.extra : bArr, gl.STATIC_DRAW);
-g.baseMeta = { ...g.baseMeta, offset: upd.base.offset, scale: upd.base.scale };
-}
-g.n = st ? st.n : src.n;
-}
-this.draw();
-} else if (msg.type === "density_update") {
-if (msg.seq !== undefined && msg.seq !== this.seq) return;
-const densityTraces = msg.traces || [];
-const pendingTraceIds = new Set(densityTraces.map((upd) => Number(upd.id)));
-if (pendingTraceIds.size === 0 && msg.trace !== undefined) {
-pendingTraceIds.add(Number(msg.trace));
-}
-const clearAllPending = pendingTraceIds.size === 0 && msg.stale;
-const clearPending = (g) => {
-if (msg.seq !== undefined && g._lodPendingSeq !== msg.seq) return;
-g._lodPendingView = null;
-g._lodPendingSeq = null;
-g._lodPendingAt = null;
-};
-if (pendingTraceIds.size || clearAllPending) {
-for (const g of this.gpuTraces) {
-if (g.tier !== "density") continue;
-if (!clearAllPending && !pendingTraceIds.has(g.trace.id)) continue;
-clearPending(g);
-}
-}
-for (const upd of densityTraces) {
-const g = this.gpuTraces.find((t) => t.trace.id === upd.id && t.tier === "density");
-if (!g) continue;
-clearPending(g);
-if (upd.mode === "points") { this._applyDrill(g, upd, buffers); continue; }
-lodApplyDensityUpdate(this, g, upd, buffers);
-}
-this._updatePickable();
-this.draw();
-} else if (msg.type === "append") {
-this._applyAppend(msg, buffers);
-} else if (msg.type === "pick_result") {
-if (msg.seq !== undefined && msg.seq !== this._pickSeq) return;
-if (!msg.row) { this._hideTooltip(); return; }
-const local = this._lastRow;
-if (local && local.trace === msg.row.trace && local.index === msg.row.index) {
-for (const [key, value] of Object.entries(local)) {
-if (msg.row[key] === undefined) msg.row[key] = value;
-}
-}
-this._applySharedTooltipFields(msg.row);
-this._lastRow = msg.row;
-if (this._tooltipAnchor
-&& Number.isFinite(msg.row.x) && Number.isFinite(msg.row.y)) {
-this._tooltipAnchor.x = msg.row.x;
-this._tooltipAnchor.y = msg.row.y;
-}
-const xy = this._lastHoverXY;
-if (xy) this._renderTooltip(msg.row, xy.clientX, xy.clientY, {
-announce: !this._a11yKeyboardReadout,
-});
-if (this._interactionFlag("hover")) {
-const detail = {
-row: msg.row,
-trace: msg.row.trace,
-index: msg.row.index,
-exact: true,
-view: this._eventView("hover"),
-};
-if (xy) {
-Object.assign(detail, this._hoverPayload(
-msg.row, this._hoverTarget, xy.clientX, xy.clientY, true,
-));
-}
-this._dispatchChartEvent("hover", detail);
-}
-} else if (msg.type === "selection") {
-if (msg.bounds) this._lastBrush = { mode: "box", ...msg.bounds };
-else if (msg.polygon) this._lastBrush = { mode: "poly", points: msg.polygon };
-if (!msg.traces || !msg.traces.length) this._lastBrush = null;
-this._applySelectionBuffers(msg, buffers);
-this._selectionCount = msg.total || 0;
-this.draw();
-if (this._interactionFlag("select", true)) {
-this._dispatchChartEvent("select", {
-total: this._selectionCount,
-view: this._eventView("select"),
-});
-}
-} else if (msg.type === "state_patch") {
-this._applyStatePatch(msg.state, {
-source: "api",
-animate: msg.animate === true,
-history: msg.history !== false,
-});
-} else if (msg.type === "view_nav") {
-if (msg.op === "reset") this._navReset(msg.axes);
-} else if (msg.type === "selection_rows") {
-this._applyRowsSelection(msg, buffers);
-}
-},
-_applySelectionBuffers(msg, buffers) {
-if (!msg.traces || !msg.traces.length) {
-for (const g of this.gpuTraces) {
-g.selActive = false;
-if (g.drill) g.drill.selActive = false;
-}
-return;
-}
-for (const upd of msg.traces) {
-const g = this.gpuTraces.find((t) => t.trace.id === upd.id);
-if (!g) continue;
-const pg = g.tier === "density" ? g.drill : g;
-if (!pg || !pg.n) continue;
-if (
-g.tier === "density" && upd.drill_seq !== undefined &&
-pg.seq !== undefined && upd.drill_seq !== pg.seq
-) continue;
-const idx = this._asU32(buffers[upd.buf]);
-const mask = new Float32Array(pg.n);
-for (let i = 0; i < idx.length; i++) if (idx[i] < pg.n) mask[idx[i]] = 1;
-this._applySelMask(pg, mask);
-}
-},
-_applyDrill(g, upd, buffers) {
-lodApplyDrill(this, g, upd, buffers);
-},
-_dropDrill(g) {
-lodDropDrill(this, g);
-},
-_viewInside(win) {
-if (!win) return false;
-const { x0, x1, y0, y1 } = this.view;
-const ex = Math.abs(x1 - x0) * 1e-4, ey = Math.abs(y1 - y0) * 1e-4;
-const vx0 = Math.min(x0, x1), vx1 = Math.max(x0, x1);
-const vy0 = Math.min(y0, y1), vy1 = Math.max(y0, y1);
-const wx0 = Math.min(win.x0, win.x1), wx1 = Math.max(win.x0, win.x1);
-const wy0 = Math.min(win.y0, win.y1), wy1 = Math.max(win.y0, win.y1);
-return vx0 >= wx0 - ex && vx1 <= wx1 + ex && vy0 >= wy0 - ey && vy1 <= wy1 + ey;
-},
-_viewOverlaps(win) {
-if (!win) return false;
-const { x0, x1, y0, y1 } = this.view;
-const vx0 = Math.min(x0, x1), vx1 = Math.max(x0, x1);
-const vy0 = Math.min(y0, y1), vy1 = Math.max(y0, y1);
-const wx0 = Math.min(win.x0, win.x1), wx1 = Math.max(win.x0, win.x1);
-const wy0 = Math.min(win.y0, win.y1), wy1 = Math.max(win.y0, win.y1);
-return vx0 <= wx1 && vx1 >= wx0 && vy0 <= wy1 && vy1 >= wy0;
-},
-_viewInsideRange(xRange, yRange) {
-if (!xRange || !yRange) return false;
-return this._viewInside({ x0: xRange[0], x1: xRange[1], y0: yRange[0], y1: yRange[1] });
-},
-});
-const RECT_MARK = {
-build: (view, g, t, buffer) => view._buildRectMark(g, t, buffer),
-draw: (view, g) => {
-const [x0, x1] = view._axisRange(g.xAxis);
-const [y0, y1] = view._axisRange(g.yAxis);
-const edgePad = g.trace.kind === "histogram"
-? [0, 0, view._edgePadForValue(0, y0, y1, view.canvas.height), 0]
-: [0, 0, 0, 0];
-view._drawRects(
-g,
-view._map(g.x0Meta, x0, x1, g.xAxis),
-view._map(g.x1Meta, x0, x1, g.xAxis),
-view._map(g.y0Meta, y0, y1, g.yAxis),
-view._map(g.y1Meta, y0, y1, g.yAxis),
-edgePad
-);
-},
-refreshColor: (view, g) => {
-if (!g.colorMode) g.color = parseColor(view.root, g.trace.style.color, g.color);
-view._rectMarkStyleGpu(g, g.trace);
-},
-};
-const BAR_MARK = {
-build: (view, g, t, buffer) => view._buildBarMark(g, t, buffer),
-draw: (view, g) => {
-if (!g.trace.bar) {
-RECT_MARK.draw(view, g);
-return;
-}
-const horizontal = g.orientation === 1;
-const pAxis = horizontal ? g.yAxis : g.xAxis;
-const vAxis = horizontal ? g.xAxis : g.yAxis;
-const [p0, p1] = view._axisRange(pAxis);
-const [v0, v1] = view._axisRange(vAxis);
-const pmap = view._map(g.posMeta, p0, p1, pAxis);
-const v1map = view._map(g.value1Meta, v0, v1, vAxis);
-const v0map = g.value0Mode === 1
-? view._map(g.value0Meta, v0, v1, vAxis)
-: null;
-const v0Const = g.value0Mode === 0
-? view._mapConst(g.value0Const, v0, v1, vAxis)
-: null;
-const v0EdgePad = g.value0Mode === 0
-? view._edgePadForValue(
-g.value0Const,
-v0,
-v1,
-horizontal ? view.canvas.width : view.canvas.height
-)
-: 0;
-view._drawBars(g, pmap, v1map, v0map, v0Const, v0EdgePad);
-},
-refreshColor: (view, g) => {
-if (!g.colorMode) g.color = parseColor(view.root, g.trace.style.color, g.color);
-view._rectMarkStyleGpu(g, g.trace);
-},
-};
-const SEGMENT_MARK = {
-build: (view, g, t, buffer) => view._buildSegmentMark(g, t, buffer),
-draw: (view, g) => {
-const [x0, x1] = view._axisRange(g.xAxis);
-const [y0, y1] = view._axisRange(g.yAxis);
-view._drawSegments(
-g,
-view._map(g.x0Meta, x0, x1, g.xAxis),
-view._map(g.y0Meta, y0, y1, g.yAxis),
-);
-},
-refreshColor: (view, g) => {
-if (!g.colorMode) g.color = parseColor(view.root, g.trace.style.color, g.color);
-},
-};
-const AREA_MARK = {
-build: (view, g, t, buffer) => view._buildAreaMark(g, t, buffer),
-draw: (view, g) => {
-const [x0, x1] = view._axisRange(g.xAxis);
-const [y0, y1] = view._axisRange(g.yAxis);
-const xm = view._map(g.xMeta, x0, x1, g.xAxis);
-const ym = view._map(g.yMeta, y0, y1, g.yAxis);
-view._drawArea(g, xm, ym, view._map(g.baseMeta, y0, y1, g.yAxis));
-if ((g.trace.style.line_width ?? 0) > 0) {
-view._drawLine(g, xm, ym, g.lineColor, g.trace.style.line_width, g.trace.style.line_opacity ?? 1);
-if (g.trace.style.stroke_perimeter) {
-const yBuf = g.yBuf, yMeta = g.yMeta, dashY = g._dashY;
-g.yBuf = g.baseBuf;
-g.yMeta = g.baseMeta;
-g._dashY = g._cpu.base;
-view._drawLine(g, xm, ym, g.lineColor, g.trace.style.line_width, g.trace.style.line_opacity ?? 1);
-g.yBuf = yBuf;
-g.yMeta = yMeta;
-g._dashY = dashY;
-}
-}
-},
-refreshColor: (view, g) => {
-g.color = parseColor(view.root, g.trace.style.color, g.color);
-g.lineColor = parseColor(view.root, g.trace.style.line_color || g.trace.style.color, g.lineColor || g.color);
-g.grad = view._resolveMarkFill(g.trace.style, g.color);
-},
-};
-const MESH_MARK = {
-build: (view, g, t, buffer) => view._buildMeshMark(g, t, buffer),
-draw: (view, g) => {
-const [x0, x1] = view._axisRange(g.xAxis);
-const [y0, y1] = view._axisRange(g.yAxis);
-view._drawMesh(g, view._map(g.x0Meta, x0, x1, g.xAxis), view._map(g.y0Meta, y0, y1, g.yAxis));
-},
-refreshColor: (view, g) => {
-if (g.colorMode === 0 && g.trace.color) g.color = parseColor(view.root, g.trace.color.color, g.color);
-const style = g.trace.style || {};
-g.meshStroke = parseColor(view.root, style.stroke || "transparent", [0, 0, 0, 0]);
-},
-};
-const MARK_KINDS = {
-histogram: RECT_MARK,
-box: RECT_MARK,
-violin: RECT_MARK,
-errorbar: SEGMENT_MARK,
-stem: SEGMENT_MARK,
-box_whisker: SEGMENT_MARK,
-box_median: SEGMENT_MARK,
-contour: SEGMENT_MARK,
-segments: SEGMENT_MARK,
-triangle_mesh: MESH_MARK,
-error_band: AREA_MARK,
-hexbin: {
-build: (view, g, t, buffer) => view._buildHexbinMark(g, t, buffer),
-draw: (view, g) => {
-const [x0, x1] = view._axisRange(g.xAxis);
-const [y0, y1] = view._axisRange(g.yAxis);
-view._drawMesh(g, view._map(g.x0Meta, x0, x1, g.xAxis), view._map(g.y0Meta, y0, y1, g.yAxis));
-},
-refreshColor: (view, g) => {
-if (g.colorMode === 0 && g.trace.color) g.color = parseColor(view.root, g.trace.color.color, g.color);
-const style = g.trace.style || {};
-g.meshStroke = parseColor(view.root, style.stroke || "transparent", [0, 0, 0, 0]);
-},
-},
-bar: BAR_MARK,
-column: BAR_MARK,
-heatmap: {
-build: (view, g, t, buffer) => view._buildHeatmapMark(g, t, buffer),
-draw: (view, g) => view._drawHeatmap(g),
-},
-scatter: {
-build: (view, g, t, buffer) => view._buildScatterMark(g, t, buffer),
-draw: (view, g) => {
-const [x0, x1] = view._axisRange(g.xAxis);
-const [y0, y1] = view._axisRange(g.yAxis);
-view._drawPoints(g, view._map(g.xMeta, x0, x1, g.xAxis), view._map(g.yMeta, y0, y1, g.yAxis));
-},
-pointPick: true,
-retainCpu: true,
-refreshColor: (view, g) => {
-if (g.colorMode === 0 && g.trace.color) {
-g.color = parseColor(view.root, g.trace.color.color, g.color);
-}
-view._pointMarkStyle(g, g.trace);
-},
-},
-line: {
-build: (view, g, t, buffer) => view._buildLineMark(g, t, buffer),
-draw: (view, g) => {
-const [x0, x1] = view._axisRange(g.xAxis);
-const [y0, y1] = view._axisRange(g.yAxis);
-view._drawLine(g, view._map(g.xMeta, x0, x1, g.xAxis), view._map(g.yMeta, y0, y1, g.yAxis));
-},
-refreshColor: (view, g) => {
-g.color = parseColor(view.root, g.trace.style.color, g.color);
-},
-},
-area: AREA_MARK,
-};
-function markOf(kind) {
-return MARK_KINDS[kind] || MARK_KINDS.scatter;
-}
-const XY_EASINGS = {
-linear: [0, 0, 1, 1],
-ease: [0.25, 0.1, 0.25, 1],
-"ease-in": [0.42, 0, 1, 1],
-"ease-out": [0, 0, 0.58, 1],
-"ease-in-out": [0.42, 0, 0.58, 1],
-};
-function xyCubicBezierProgress(value, points) {
-const x1 = Number(points[0]), y1 = Number(points[1]);
-const x2 = Number(points[2]), y2 = Number(points[3]);
-const sample = (t, a, b) => {
-const u = 1 - t;
-return 3 * u * u * t * a + 3 * u * t * t * b + t * t * t;
-};
-const slope = (t, a, b) => {
-const u = 1 - t;
-return 3 * u * u * a + 6 * u * t * (b - a) + 3 * t * t * (1 - b);
-};
-let t = value;
-for (let i = 0; i < 5; i++) {
-const d = slope(t, x1, x2);
-if (Math.abs(d) < 1e-6) break;
-t = Math.max(0, Math.min(1, t - (sample(t, x1, x2) - value) / d));
-}
-let lo = 0, hi = 1;
-for (let i = 0; i < 8; i++) {
-if (sample(t, x1, x2) < value) lo = t; else hi = t;
-t = (lo + hi) * 0.5;
-}
-return sample(t, y1, y2);
-}
-function xySpringProgress(value, policy) {
-const stiffness = Math.max(1e-6, Number(policy.stiffness) || 170);
-const damping = Math.max(1e-6, Number(policy.damping) || 26);
-const mass = Math.max(1e-6, Number(policy.mass) || 1);
-const w0 = Math.sqrt(stiffness / mass);
-const zeta = damping / (2 * Math.sqrt(stiffness * mass));
-const response = (progress) => {
-const time = progress * 6 / w0;
-if (zeta < 1) {
-const wd = w0 * Math.sqrt(1 - zeta * zeta);
-return 1 - Math.exp(-zeta * w0 * time) *
-(Math.cos(wd * time) + (zeta * w0 / wd) * Math.sin(wd * time));
-}
-return 1 - Math.exp(-w0 * time) * (1 + w0 * time);
-};
-const endpoint = response(1);
-const result = Math.abs(endpoint) > 1e-9 ? response(value) / endpoint : value;
-return Math.max(0, Math.min(1.15, result));
-}
-function xyAnimationEase(value, easing) {
-if (easing && typeof easing === "object" && !Array.isArray(easing) && easing.type === "spring") {
-return xySpringProgress(value, easing);
-}
-const points = Array.isArray(easing) ? easing : XY_EASINGS[easing] || XY_EASINGS["ease-out"];
-return xyCubicBezierProgress(value, points);
-}
-Object.assign(ChartView.prototype, {
-_resolvedAnimation(trace) {
-return {
-...(this.spec.animation || {}),
-...((trace && trace.animation) || {}),
-_present: !!this.spec.animation || !!(trace && trace.animation),
-};
-},
-_animationEnabled(config) {
-if (!config._present) return false;
-if (config.enabled === false) return false;
-if (config.enabled === true) return true;
-return !this._prefersReducedMotion();
-},
-_defaultEntrance(kind) {
-if (kind === "line" || kind === "area" || kind === "error_band") return "reveal";
-if (kind === "bar" || kind === "column") return "grow";
-if (kind === "scatter" || kind === "errorbar") return "scale";
-return "none";
-},
-_setTransitionVisual(g, phase, progress, config) {
-const p = Math.max(0, Math.min(1, progress));
-g._transitionOpacity = 1;
-g._transitionScale = 1;
-g._transitionReveal = 1;
-g._transitionGrow = 1;
-if (phase === "exit") {
-g._transitionOpacity = 0;
-return;
-}
-if (phase === "update") {
-g._transitionPositionProgress = p;
-return;
-}
-let enter = config.enter || "auto";
-if (enter === "auto") enter = this._defaultEntrance(g.trace.kind);
-if (enter === "none") return;
-if (enter === "scale") {
-if (g.trace.kind === "scatter") g._transitionScale = p;
-else if (g.trace.kind === "errorbar") g._transitionScale = p;
-else if (g.trace.kind === "bar" || g.trace.kind === "column") g._transitionGrow = p;
-else if (g.trace.kind === "line" || g.trace.kind === "area" ||
-g.trace.kind === "error_band") g._transitionReveal = p;
-}
-if (enter === "reveal") g._transitionReveal = p;
-if (enter === "grow") g._transitionGrow = p;
-},
-_clearTransitionVisual(g) {
-delete g._transitionOpacity;
-delete g._transitionScale;
-delete g._transitionReveal;
-delete g._transitionGrow;
-delete g._transitionPositionProgress;
-delete g._transitionPhase;
-delete g._transitionPrevXValues;
-delete g._transitionPrevYValues;
-delete g._transitionPrevPosValues;
-delete g._transitionPrevValue1Values;
-delete g._transitionPrevValue0Values;
-delete g._transitionPrevWidth;
-delete g._transitionPositionInterpolated;
-this._deleteBuffers(g, [
-"_transitionPrevXBuf", "_transitionPrevYBuf",
-"_transitionPrevPosBuf", "_transitionPrevValue1Buf", "_transitionPrevValue0Buf",
-]);
-},
-_emitAnimationLifecycle(stage, phase, extra = {}) {
-const detail = { stage, phase, ...extra, view: this._eventView(`animation_${stage}`) };
-this._dispatchChartEvent(`animation_${stage}`, detail);
-this.comm?.send?.({ type: `animation_${stage}`, phase, ...extra });
-},
-_runDataAnimation(phase, current, exiting = []) {
-if (this._dataAnimRaf) cancelAnimationFrame(this._dataAnimRaf);
-const epoch = (this._dataAnimEpoch || 0) + 1;
-this._dataAnimEpoch = epoch;
-const records = [];
-for (const g of current) {
-const config = this._resolvedAnimation(g.trace);
-const recordPhase = g._transitionPhase || phase;
-if (!this._animationEnabled(config) ||
-(recordPhase === "enter" && config.enter === "none") ||
-(recordPhase === "update" && config.update === "none")) {
-this._clearTransitionVisual(g);
-continue;
-}
-records.push({ g, config, phase: recordPhase, delay: Number(config.delay) || 0, duration: Math.max(0, Number(config.duration) || 0) });
-}
-for (const g of exiting) {
-g._transitionOpacity = 0;
-}
-if (!records.length) {
-for (const g of current) this._clearTransitionVisual(g);
-if (this._transitionView) {
-this.view = { ...this._transitionView.to };
-this._transitionView = null;
-}
-this._destroyTransitionOldTraces();
-this.draw();
-return false;
-}
-const start = this._now();
-this._dataAnim = { epoch, phase, start };
-this._emitAnimationLifecycle("start", phase);
-const tick = () => {
-if (this._destroyed || !this._dataAnim || this._dataAnim.epoch !== epoch) return;
-const now = this._now();
-let active = false;
-let maxRaw = 0;
-for (const record of records) {
-const raw = record.duration <= 0
-? (now >= start + record.delay ? 1 : 0)
-: Math.max(0, Math.min(1, (now - start - record.delay) / record.duration));
-if (this._transitionView) maxRaw = Math.max(maxRaw, raw);
-const eased = xyAnimationEase(raw, record.config.easing);
-this._setTransitionVisual(record.g, record.phase, eased, record.config);
-if (raw < 1) active = true;
-}
-if (this._transitionView) {
-const p = xyAnimationEase(maxRaw, (this.spec.animation || {}).easing);
-const from = this._transitionView.from, to = this._transitionView.to;
-this.view = {
-x0: from.x0 + (to.x0 - from.x0) * p,
-x1: from.x1 + (to.x1 - from.x1) * p,
-y0: from.y0 + (to.y0 - from.y0) * p,
-y1: from.y1 + (to.y1 - from.y1) * p,
-};
-}
-this.draw();
-if (active) {
-this._dataAnimRaf = requestAnimationFrame(tick);
-} else {
-this._dataAnimRaf = null;
-for (const record of records) this._clearTransitionVisual(record.g);
-this._finishDataAnimation(phase);
-}
-};
-this._dataAnimRaf = requestAnimationFrame(tick);
-return true;
-},
-_finishDataAnimation(phase) {
-this._dataAnim = null;
-if (this._transitionView) {
-this.view = { ...this._transitionView.to };
-this._transitionView = null;
-}
-this._destroyTransitionOldTraces();
-this._emitAnimationLifecycle("end", phase);
-},
-_startEntranceAnimation() {
-const capture = Number(this.spec.animation_capture_progress);
-if (Number.isFinite(capture) && capture >= 0 && capture <= 1) {
-for (const g of this.gpuTraces || []) {
-const config = this._resolvedAnimation(g.trace);
-if (config._present && config.enabled !== false && config.enter !== "none") {
-this._setTransitionVisual(g, "enter", xyAnimationEase(capture, config.easing), config);
-} else {
-this._clearTransitionVisual(g);
-}
-}
-this.draw();
-return;
-}
-this._runDataAnimation("enter", this.gpuTraces || []);
-},
-_destroyTransitionOldTraces() {
-if (!this._transitionOldTraces || !this.gl) {
-this._transitionOldTraces = null;
-return;
-}
-const seen = new Set();
-for (const g of this._transitionOldTraces) this._destroyTraceResources(g, seen);
-this._transitionOldTraces = null;
-},
-_transitionMatches(previous, next, config) {
-let strategy = config.match || "index";
-const pairs = [];
-let fallback = next.trace.animation_fallback || null;
-if ((previous.n || 0) > 200000 || (next.n || 0) > 200000) {
-return {
-strategy: "snap",
-pairs,
-fallback: fallback || `snap:${strategy}-match-limit`,
-};
-}
-if (strategy === "key") {
-if (previous._transitionKeyIndex && next._transitionKeys) {
-for (let ni = 0; ni < next._transitionKeys.length; ni++) {
-const oi = previous._transitionKeyIndex.get(next._transitionKeys[ni]);
-if (oi !== undefined) pairs.push([oi, ni]);
-}
-} else {
-fallback ||= "index:missing-keys";
-strategy = "index";
-}
-}
-if (strategy === "append") {
-const oldX = previous._cpu && previous._cpu.x;
-const newX = next._cpu && next._cpu.x;
-if (oldX && newX && oldX.length <= 200000 && newX.length <= 200000) {
-const index = new Map();
-for (let i = 0; i < oldX.length; i++) {
-const value = this._decodeValue(oldX, previous.xMeta, i);
-if (Number.isFinite(value)) index.set(value.toPrecision(12), i);
-}
-for (let i = 0; i < newX.length; i++) {
-const value = this._decodeValue(newX, next.xMeta, i);
-const oi = Number.isFinite(value) ? index.get(value.toPrecision(12)) : undefined;
-if (oi !== undefined) pairs.push([oi, i]);
-}
-} else {
-fallback ||= "index:append-limit";
-strategy = "index";
-}
-}
-if (strategy === "index") {
-const count = Math.min(previous.n || 0, next.n || 0);
-for (let i = 0; i < count; i++) pairs.push([i, i]);
-}
-return {
-strategy,
-pairs,
-fallback,
-};
-},
-_recordAnimationFallback(trace, fallback) {
-if (!trace || !fallback) return;
-trace.animation_fallback = fallback;
-if (this.root && this.root.dataset) {
-this.root.dataset.xyAnimationFallback = fallback;
-}
-},
-_preparePositionInterpolation(previous, next, config) {
-const match = next._transitionMatch;
-const policies = config.interpolate || [];
-if (config.update !== "interpolate" || !policies.includes("position") || !match) return false;
-if (["bar", "column"].includes(next.trace.kind)) {
-return this._prepareBarPositionInterpolation(previous, next, match);
-}
-if (!["scatter", "line"].includes(next.trace.kind)) return false;
-if (!previous._cpu || !next._cpu || next.n !== next._cpu.x.length ||
-previous.n !== previous._cpu.x.length) {
-match.fallback ||= "snap:layout-mismatch";
-return false;
-}
-const startX = new Float32Array(next._cpu.x);
-const startY = new Float32Array(next._cpu.y);
-const encode = (value, meta) => (value - (Number(meta.offset) || 0)) * (Number(meta.scale) || 1);
-const displayedValue = (axis, index) => {
-const cpu = previous._cpu[axis];
-const starts = previous[axis === "x" ? "_transitionPrevXValues" : "_transitionPrevYValues"];
-const progress = previous._transitionPositionProgress;
-if (!starts || !Number.isFinite(progress)) {
-return this._decodeValue(cpu, previous[`${axis}Meta`], index);
-}
-const encoded = starts[index] + (cpu[index] - starts[index]) * progress;
-const meta = previous[`${axis}Meta`];
-return encoded / (meta.scale || 1) + meta.offset;
-};
-for (const [oldIndex, newIndex] of match.pairs) {
-const x = displayedValue("x", oldIndex);
-const y = displayedValue("y", oldIndex);
-if (Number.isFinite(x) && Number.isFinite(y)) {
-startX[newIndex] = encode(x, next.xMeta);
-startY[newIndex] = encode(y, next.yMeta);
-}
-}
-next._transitionPrevXBuf = this._upload(startX);
-next._transitionPrevYBuf = this._upload(startY);
-next._transitionPrevXValues = startX;
-next._transitionPrevYValues = startY;
-next._transitionPositionProgress = 0;
-next._transitionPositionInterpolated = true;
-previous._transitionSkipExit = true;
-return true;
-},
-_prepareBarPositionInterpolation(previous, next, match) {
-const oldBar = previous._cpuBar;
-const newBar = next._cpuBar;
-if (!oldBar || !newBar || previous.orientation !== next.orientation ||
-next.n !== newBar.pos.length || previous.n !== oldBar.pos.length) {
-match.fallback ||= "snap:layout-mismatch";
-return false;
-}
-const startPos = new Float32Array(newBar.pos);
-const startValue1 = new Float32Array(newBar.value1);
-const startValue0 = new Float32Array(next.n);
-const encode = (value, meta) => (value - (Number(meta.offset) || 0)) * (Number(meta.scale) || 1);
-const decode = (value, meta) => value / (Number(meta.scale) || 1) + (Number(meta.offset) || 0);
-const value0At = (bar, index) => bar.value0
-? decode(bar.value0[index], bar.value0Meta)
-: Number(bar.value0Const) || 0;
-const displayed = (values, current, meta, index) => {
-const progress = previous._transitionPositionProgress;
-if (!values || !Number.isFinite(progress)) return decode(current[index], meta);
-return decode(values[index] + (current[index] - values[index]) * progress, meta);
-};
-const displayedValue0 = (index) => {
-const starts = previous._transitionPrevValue0Values;
-const progress = previous._transitionPositionProgress;
-const current = value0At(oldBar, index);
-if (!starts || !Number.isFinite(progress)) return current;
-const start = decode(starts[index], oldBar.value1Meta);
-return start + (current - start) * progress;
-};
-for (let i = 0; i < next.n; i++) {
-startValue0[i] = encode(value0At(newBar, i), newBar.value1Meta);
-}
-for (const [oldIndex, newIndex] of match.pairs) {
-const pos = displayed(
-previous._transitionPrevPosValues,
-oldBar.pos,
-oldBar.posMeta,
-oldIndex
-);
-const value1 = displayed(
-previous._transitionPrevValue1Values,
-oldBar.value1,
-oldBar.value1Meta,
-oldIndex
-);
-const value0 = displayedValue0(oldIndex);
-if (Number.isFinite(pos) && Number.isFinite(value0) && Number.isFinite(value1)) {
-startPos[newIndex] = encode(pos, newBar.posMeta);
-startValue1[newIndex] = encode(value1, newBar.value1Meta);
-startValue0[newIndex] = encode(value0, newBar.value1Meta);
-}
-}
-const progress = previous._transitionPositionProgress;
-const previousWidth = Number.isFinite(previous._transitionPrevWidth) && Number.isFinite(progress)
-? previous._transitionPrevWidth + (oldBar.width - previous._transitionPrevWidth) * progress
-: oldBar.width;
-next._transitionPrevPosBuf = this._upload(startPos);
-next._transitionPrevValue1Buf = this._upload(startValue1);
-next._transitionPrevValue0Buf = this._upload(startValue0);
-next._transitionPrevPosValues = startPos;
-next._transitionPrevValue1Values = startValue1;
-next._transitionPrevValue0Values = startValue0;
-next._transitionPrevWidth = previousWidth;
-next._transitionPositionProgress = 0;
-next._transitionPositionInterpolated = true;
-previous._transitionSkipExit = true;
-return true;
-},
-updatePayload(spec, buffer) {
-if (this._destroyed || !spec || spec.protocol !== PROTOCOL) return false;
-if (this._dataAnimRaf) cancelAnimationFrame(this._dataAnimRaf);
-this._dataAnimRaf = null;
-if (this._dataAnim) {
-this._emitAnimationLifecycle("end", this._dataAnim.phase, { cancelled: true });
-}
-this._dataAnim = null;
-this._destroyTransitionOldTraces();
-const previous = this.gpuTraces || [];
-const fromView = { ...this.view };
-this.spec = spec;
-this.interaction = spec.interaction || {};
-this.markStyle = spec.mark_style || {};
-this.axes = this._normalizeAxes(spec);
-this._payload = buffer;
-this.view0 = undefined;
-this.view0 = this._clampView({
-ranges: Object.fromEntries(
-Object.entries(this.axes).map(([id, axis]) => [id, [...axis.range]]),
-),
-});
-const target = { ...this.view0 };
-if (this._glLost || !this.gl) {
-this.view = { ...target };
-return true;
-}
-this.gpuTraces = spec.traces.map((trace) => this._buildTrace(buffer, trace));
-for (const next of this.gpuTraces) {
-const old = previous.find((candidate) => candidate.trace.id === next.trace.id && candidate.trace.kind === next.trace.kind);
-if (old) {
-const config = this._resolvedAnimation(next.trace);
-old._transitionExitTrace = next.trace;
-if (this._animationEnabled(config) && config.update !== "none") {
-next._transitionMatch = this._transitionMatches(old, next, config);
-this._preparePositionInterpolation(old, next, config);
-old._transitionSkipExit = true;
-this._recordAnimationFallback(next.trace, next._transitionMatch.fallback);
-}
-} else {
-next._transitionPhase = "enter";
-}
-}
-this._transitionOldTraces = previous;
-const animateDomain = this.gpuTraces.some((g) => {
-const config = this._resolvedAnimation(g.trace);
-return this._animationEnabled(config) && config.update === "interpolate" &&
-(config.interpolate || []).includes("domain");
-});
-this._transitionView = animateDomain ? { from: fromView, to: target } : null;
-if (!animateDomain) this.view = { ...target };
-this._updatePickable();
-if (!this._runDataAnimation("update", this.gpuTraces, previous)) {
-this.view = { ...target };
-this._transitionView = null;
-}
-return true;
-},
-});
-const XY_HISTORY_CAPACITY = 64;
-Object.assign(ChartView.prototype, {
-_initViewState() {
-this._historyPast = [];
-this._historyFuture = [];
-this._historyLastInteractionId = null;
-this._stateSelection = null;
-this._customTooltip = null;
-this.root.xy = {
-applyState: (patch, opts = {}) => this._applyStatePatch(patch, {
-source: "api",
-animate: opts.animate === true,
-history: opts.history !== false,
-}),
-state: () => this._durableState(),
-back: () => this._historyBack(),
-forward: () => this._historyForward(),
-};
-},
-_durableState() {
-const ranges = Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId)]])
-);
-const sel = this._stateSelection;
-const selection = sel === null || sel === undefined
-? null
-: sel.rows
-? { rows: true }
-: sel.range
-? { range: { ...sel.range } }
-: { polygon: sel.polygon.map((point) => [...point]) };
-return { v: 1, ranges, selection };
-},
-_validateStatePatch(patch) {
-if (!patch || typeof patch !== "object" || Array.isArray(patch)) {
-return "state patch must be an object";
-}
-if (patch.v !== undefined && patch.v !== 1) {
-return `unsupported state version ${patch.v}`;
-}
-for (const key of Object.keys(patch)) {
-if (!["v", "ranges", "selection"].includes(key)) return `unknown key ${key}`;
-}
-if (patch.ranges !== undefined) {
-if (!patch.ranges || typeof patch.ranges !== "object" || Array.isArray(patch.ranges)) {
-return "ranges must be an object";
-}
-const declared = new Set(this._axisIds());
-for (const [axisId, range] of Object.entries(patch.ranges)) {
-if (!declared.has(axisId)) return `unknown axis ${axisId}`;
-if (!Array.isArray(range) || range.length !== 2
-|| !range.every((v) => Number.isFinite(v)) || range[0] === range[1]) {
-return `invalid range for axis ${axisId}`;
-}
-}
-}
-if (patch.selection !== undefined && patch.selection !== null) {
-const sel = patch.selection;
-if (typeof sel !== "object" || Array.isArray(sel)) return "invalid selection";
-const keys = Object.keys(sel);
-if (keys.length !== 1) return "invalid selection";
-if (keys[0] === "range") {
-const r = sel.range;
-if (!r || typeof r !== "object"
-|| !["x0", "x1", "y0", "y1"].every((k) => Number.isFinite(r[k]))) {
-return "invalid selection range";
-}
-} else if (keys[0] === "polygon") {
-const p = sel.polygon;
-if (!Array.isArray(p) || p.length < 3
-|| !p.every((pt) => Array.isArray(pt) && pt.length === 2
-&& pt.every(Number.isFinite))) {
-return "invalid selection polygon";
-}
-} else if (keys[0] === "rows") {
-return "rows selections are not applicable state";
-} else {
-return "invalid selection";
-}
-}
-return null;
-},
-_applyStatePatch(patch, opts = {}) {
-if (this._destroyed) return false;
-const error = this._validateStatePatch(patch);
-if (error) {
-if (typeof console !== "undefined" && console.warn) {
-console.warn(`xy: state patch rejected: ${error}`);
-}
-return false;
-}
-const source = opts.source || "api";
-const interactionId = ++this._interactionSeq;
-if (patch.ranges !== undefined) {
-const ranges = Object.fromEntries(
-this._axisIds().map((axisId) => [axisId, [...this._axisRange(axisId)]])
-);
-for (const [axisId, range] of Object.entries(patch.ranges)) {
-ranges[axisId] = [Number(range[0]), Number(range[1])];
-}
-this._setView({ ranges }, {
-animate: opts.animate === true,
-source,
-phase: "end",
-interactionId,
-history: opts.history,
-});
-}
-if (patch.selection !== undefined) {
-const sel = patch.selection;
-const selOpts = { history: opts.history, interactionId, source };
-if (sel === null) {
-this._clearSelection(selOpts);
-} else if (sel.range) {
-const { x0, x1, y0, y1 } = sel.range;
-this._sendSelect([x0, y0], [x1, y1], selOpts);
-} else if (sel.polygon) {
-this._sendSelectPolygon(sel.polygon.map((point) => [...point]), selOpts);
-}
-}
-return true;
-},
-_historyEnabled() {
-return this._interactionFlag("history", true);
-},
-_historyRecord(opts = {}) {
-if (!this._historyPast || !this._historyEnabled() || this._destroyed) return;
-if (opts.history === false) return;
-if (opts.source === "linked" || opts.source === "history") return;
-const id = opts.interactionId;
-if (id !== undefined && id !== null && id === this._historyLastInteractionId) return;
-this._historyLastInteractionId = id === undefined ? null : id;
-this._historyPast.push(this._durableState());
-if (this._historyPast.length > XY_HISTORY_CAPACITY) this._historyPast.shift();
-this._historyFuture.length = 0;
-this._updateHistoryButtons();
-},
-_historyBack() {
-if (!this._historyEnabled() || !this._historyPast.length) return false;
-const snapshot = this._historyPast.pop();
-this._historyFuture.push(this._durableState());
-this._historyApply(snapshot);
-return true;
-},
-_historyForward() {
-if (!this._historyEnabled() || !this._historyFuture.length) return false;
-const snapshot = this._historyFuture.pop();
-this._historyPast.push(this._durableState());
-this._historyApply(snapshot);
-return true;
-},
-_historyApply(snapshot) {
-const patch = { v: 1, ranges: snapshot.ranges };
-if (!snapshot.selection || !snapshot.selection.rows) {
-patch.selection = snapshot.selection ?? null;
-}
-this._applyStatePatch(patch, { source: "history", animate: true, history: false });
-this._historyLastInteractionId = null;
-this._updateHistoryButtons();
-},
-_updateHistoryButtons() {
-const set = (btn, enabled) => {
-if (!btn) return;
-btn.disabled = !enabled;
-btn.setAttribute("aria-disabled", String(!enabled));
-btn.style.opacity = enabled ? "" : "0.4";
-};
-set(this._historyBackBtn, this._historyPast.length > 0);
-set(this._historyForwardBtn, this._historyFuture.length > 0);
-},
-_navReset(axes) {
-const override = Array.isArray(axes)
-? axes.filter((axisId) => this._axisIds().includes(axisId))
-: null;
-this._resetView(true, "reset", override);
-},
-_applyRowsSelection(msg, buffers) {
-this._clearLassoOverlay();
-for (const g of this.gpuTraces) {
-g.selActive = false;
-if (g.drill) g.drill.selActive = false;
-}
-this._lastBrush = null;
-this._applySelectionBuffers(msg, buffers);
-this._stateSelection = { rows: true };
-this._selectionCount = msg.total || 0;
-this.draw();
-if (this._interactionFlag("select", true)) {
-this._dispatchChartEvent("select", {
-total: this._selectionCount,
-view: this._eventView("select"),
-});
-}
-},
-_axisBandNavigable(axisId) {
-if (!this._interactionFlag("navigation", true)) return false;
-const pan = this._interactionFlag("pan", true)
-&& this._axisPolicy("pan_axes").includes(axisId);
-const zoom = this._interactionFlag("zoom", true)
-&& this._axisPolicy("zoom_axes").includes(axisId);
-return pan || zoom;
-},
-_axisBandCursor(axisId, dim) {
-const zoom = this._interactionFlag("zoom", true)
-&& this._axisPolicy("zoom_axes").includes(axisId);
-if (zoom) return dim === "x" ? "ew-resize" : "ns-resize";
-return "grab";
-},
-_initAxisBands() {
-if (!this.root) return;
-this._axisBands = {};
-for (const axisId of this._axisIds()) {
-if (!this._axisBandNavigable(axisId)) continue;
-const dim = this._axisDim(axisId);
-const band = document.createElement("div");
-band.dataset.xyAxisBand = axisId;
-band.style.cssText =
-"position:absolute;z-index:2;touch-action:none;" +
-`cursor:${this._axisBandCursor(axisId, dim)};`;
-this.root.appendChild(band);
-this._axisBands[axisId] = band;
-this._bindAxisBand(band, axisId, dim);
-}
-this._layoutAxisBands();
-},
-_layoutAxisBands() {
-if (!this._axisBands) return;
-const OUT = 24;
-const IN = 6;
-for (const [axisId, band] of Object.entries(this._axisBands)) {
-const dim = this._axisDim(axisId);
-const side = this._axis(axisId).side;
-if (dim === "x") {
-band.style.left = `${this.plot.x}px`;
-band.style.width = `${this.plot.w}px`;
-if (side === "top") {
-band.style.top = `${Math.max(0, this.plot.y - OUT)}px`;
-band.style.height = `${OUT + IN}px`;
-} else {
-band.style.top = `${this.plot.y + this.plot.h - IN}px`;
-band.style.height = `${IN + OUT}px`;
-}
-} else {
-band.style.top = `${this.plot.y}px`;
-band.style.height = `${this.plot.h}px`;
-if (side === "right") {
-band.style.left = `${this.plot.x + this.plot.w - IN}px`;
-band.style.width = `${IN + OUT}px`;
-} else {
-band.style.left = `${Math.max(0, this.plot.x - OUT)}px`;
-band.style.width = `${OUT + IN}px`;
-}
-}
-}
-},
-_axisBandValue(axisId, clientX, clientY) {
-const rect = this.canvas.getBoundingClientRect();
-const dim = this._axisDim(axisId);
-if (dim === "x") {
-const cssX = Math.max(0, Math.min(rect.width, clientX - rect.left));
-return this._dataFromCanvas(cssX, 0, axisId, "y")[0];
-}
-const cssY = Math.max(0, Math.min(rect.height, clientY - rect.top));
-return this._dataFromCanvas(0, cssY, "x", axisId)[1];
-},
-_bindAxisBand(band, axisId, dim) {
-let drag = null;
-this._listen(band, "wheel", (e) => {
-if (!this._interactionFlag("navigation", true)) return;
-if (!this._interactionFlag("zoom", true)) return;
-if (!this._interactionFlag("wheel_zoom", true)) return;
-if (!this._axisPolicy("zoom_axes").includes(axisId)) return;
-e.preventDefault();
-const factor = Math.pow(1.0015, e.deltaY);
-const rect = this.canvas.getBoundingClientRect();
-const fx = (e.clientX - rect.left) / rect.width;
-const fy = 1 - (e.clientY - rect.top) / rect.height;
-this._queueWheelZoom(factor, fx, fy, [axisId]);
-}, { passive: false });
-this._listen(band, "pointerdown", (e) => {
-if (e.pointerType === "mouse" && e.button !== 0) return;
-if (!this._interactionFlag("navigation", true)) return;
-this._cancelViewAnimation();
-drag = {
-pointerId: e.pointerId,
-sx: e.clientX,
-sy: e.clientY,
-view: this._copyView(this.view),
-d0: this._axisBandValue(axisId, e.clientX, e.clientY),
-mode: null,
-interactionId: ++this._interactionSeq,
-changedAxes: [],
-};
-try { band.setPointerCapture(e.pointerId); } catch (_err) {   }
-this.tooltip.style.display = "none";
-e.preventDefault();
-});
-const canBandPan = () =>
-this._interactionFlag("pan", true) && this._axisPolicy("pan_axes").includes(axisId)
-? true
-: this._axisContained(axisId);
-const canBandSpanZoom = () =>
-this._interactionFlag("zoom", true)
-&& this._interactionFlag("box_zoom", true)
-&& this._axisPolicy("zoom_axes").includes(axisId);
-this._listen(band, "pointermove", (e) => {
-if (!drag || e.pointerId !== drag.pointerId) return;
-const dx = e.clientX - drag.sx;
-const dy = e.clientY - drag.sy;
-if (!drag.mode) {
-if (Math.hypot(dx, dy) <= 3) return;
-const parallel = dim === "x" ? dx : dy;
-const perpendicular = dim === "x" ? dy : dx;
-const wantPan = Math.abs(parallel) >= Math.abs(perpendicular);
-drag.mode = wantPan
-? (canBandPan() ? "pan" : canBandSpanZoom() ? "span" : "none")
-: (canBandSpanZoom() ? "span" : canBandPan() ? "pan" : "none");
-if (drag.mode === "pan") band.style.cursor = "grabbing";
-}
-if (drag.mode === "pan") {
-const ranges = Object.fromEntries(
-this._axisIds().map((id) => [id, [...this._axisRange(id, drag.view)]])
-);
-const axis = this._axis(axisId);
-const [lo, hi] = this._axisRange(axisId, drag.view);
-const c0 = this._axisCoord(axis, lo), c1 = this._axisCoord(axis, hi);
-if (![c0, c1].every(Number.isFinite) || c0 === c1) return;
-const pixels = dim === "x" ? this.plot.w : this.plot.h;
-const deltaPx = dim === "x" ? dx : dy;
-const delta = (deltaPx / pixels) * (c1 - c0);
-const signed = dim === "x" ? -delta : delta;
-ranges[axisId] = [
-this._axisValue(axis, c0 + signed),
-this._axisValue(axis, c1 + signed),
-];
-const changed = this._setView({ ranges }, {
-source: "pan_drag",
-phase: "update",
-interactionId: drag.interactionId,
-});
-drag.changedAxes = [...new Set([...drag.changedAxes, ...changed])];
-} else if (drag.mode === "span") {
-const rootRect = this.root.getBoundingClientRect();
-this.selRect.dataset.xyBand = "zoom";
-this.selRect.style.display = "block";
-if (dim === "x") {
-const a = Math.max(this.plot.x, Math.min(
-this.plot.x + this.plot.w,
-Math.min(drag.sx, e.clientX) - rootRect.left));
-const b = Math.max(this.plot.x, Math.min(
-this.plot.x + this.plot.w,
-Math.max(drag.sx, e.clientX) - rootRect.left));
-this.selRect.style.left = `${a}px`;
-this.selRect.style.width = `${Math.max(0, b - a)}px`;
-this.selRect.style.top = `${this.plot.y}px`;
-this.selRect.style.height = `${this.plot.h}px`;
-} else {
-const a = Math.max(this.plot.y, Math.min(
-this.plot.y + this.plot.h,
-Math.min(drag.sy, e.clientY) - rootRect.top));
-const b = Math.max(this.plot.y, Math.min(
-this.plot.y + this.plot.h,
-Math.max(drag.sy, e.clientY) - rootRect.top));
-this.selRect.style.top = `${a}px`;
-this.selRect.style.height = `${Math.max(0, b - a)}px`;
-this.selRect.style.left = `${this.plot.x}px`;
-this.selRect.style.width = `${this.plot.w}px`;
-}
-}
-e.preventDefault();
-});
-const end = (e) => {
-if (!drag || e.pointerId !== drag.pointerId) return;
-const finished = drag;
-drag = null;
-band.style.cursor = this._axisBandCursor(axisId, dim);
-if (finished.mode === "span") this.selRect.style.display = "none";
-if (e.type === "pointercancel") return;
-if (finished.mode === "pan" && finished.changedAxes.length) {
-this._emitViewChange("pan_drag", {
-axes: finished.changedAxes,
-phase: "end",
-interactionId: finished.interactionId,
-});
-} else if (finished.mode === "span") {
-const d1 = this._axisBandValue(axisId, e.clientX, e.clientY);
-const axis = this._axis(axisId);
-const a = this._axisCoord(axis, finished.d0);
-const b = this._axisCoord(axis, d1);
-const minSpan = Math.max(Math.abs(a), Math.abs(b), 1e-30) * 1e-12;
-if (![a, b].every(Number.isFinite) || Math.abs(b - a) < minSpan) return;
-const [lo, hi] = this._axisRange(axisId);
-const reverse = this._axisCoord(axis, hi) < this._axisCoord(axis, lo);
-const low = Math.min(a, b), high = Math.max(a, b);
-const ranges = Object.fromEntries(
-this._axisIds().map((id) => [id, [...this._axisRange(id)]])
-);
-ranges[axisId] = [
-this._axisValue(axis, reverse ? high : low),
-this._axisValue(axis, reverse ? low : high),
-];
-this._setView({ ranges }, {
-animate: true,
-anchors: { [axisId]: 0.5 },
-source: "box_zoom",
-phase: "end",
-interactionId: finished.interactionId,
-});
-}
-};
-this._listen(band, "pointerup", end);
-this._listen(band, "pointercancel", end);
-},
-_seriesColorCss(g) {
-const c = g && g.color;
-if (!Array.isArray(c) || c.length < 3) return null;
-const channel = (v) => Math.max(0, Math.min(255, Math.round(Number(v) * 255)));
-return `rgb(${channel(c[0])}, ${channel(c[1])}, ${channel(c[2])})`;
-},
-_hoverPayload(row, hit, clientX, clientY, exact = false) {
-const rootRect = this.root.getBoundingClientRect();
-const canvasRect = this.canvas.getBoundingClientRect();
-const cssX = Math.max(0, Math.min(canvasRect.width, clientX - canvasRect.left));
-const cssY = Math.max(0, Math.min(canvasRect.height, clientY - canvasRect.top));
-const data = {};
-for (const axisId of this._axisIds()) {
-const dim = this._axisDim(axisId);
-const [x, y] = this._dataFromCanvas(
-cssX, cssY,
-dim === "x" ? axisId : "x",
-dim === "y" ? axisId : "y",
-);
-data[axisId] = dim === "x" ? x : y;
-}
-const g = hit && hit.g;
-const points = row ? [{
-trace: (g && g.trace && g.trace.name) || row.trace,
-index: row.index,
-row,
-x_axis: (g && g.xAxis) || "x",
-y_axis: (g && g.yAxis) || "y",
-color: this._seriesColorCss(g),
-}] : [];
-const payload = {
-active: true,
-cursor: {
-px: [clientX - rootRect.left, clientY - rootRect.top],
-data,
-},
-points,
-};
-if (exact) payload.exact = true;
-return payload;
-},
-setCustomTooltip(el) {
-if (!this.tooltip) return;
-if (!el) {
-this._customTooltip = null;
-delete this.tooltip.dataset.xyCustomTooltip;
-this.tooltip.style.background = "";
-this.tooltip.style.border = "";
-this.tooltip.style.padding = "";
-this.tooltip.replaceChildren();
-this.tooltip.style.display = "none";
-return;
-}
-this._customTooltip = el;
-this.tooltip.dataset.xyCustomTooltip = "";
-this.tooltip.style.background = "transparent";
-this.tooltip.style.border = "none";
-this.tooltip.style.padding = "0";
-el.style.display = "";
-this.tooltip.replaceChildren(el);
-},
-});
-function bytesToSpan(b) {
-const span = xyByteSpan(b, "chart payload");
-return span.byteOffset % 4 === 0 ? span : new Uint8Array(span);
-}
-
-function payloadBuffers(spec, raw) {
-if (spec.buffer_layout === "split") {
-if (!Array.isArray(raw)) {
-throw new Error("xy: spec says buffer_layout=split but the transport delivered one buffer");
-}
-return raw.map(bytesToSpan);
-}
-if (Array.isArray(raw)) {
-throw new Error("xy: transport delivered a buffer list but the spec is not split-layout");
-}
-return bytesToSpan(raw);
-}
-function render({ model, el }) {
-const spec = model.get("spec");
-const buffer = payloadBuffers(spec, model.get("buffers"));
-const comm = {
-send: (msg) => model.send(msg),
-wantsViewChange: () => spec.interaction?._transport_view_change === true,
-onMessage: (cb) => {
-const handler = (content, buffers) => cb(content, buffers);
-model.on("msg:custom", handler);
-return () => model.off?.("msg:custom", handler);
-},
-};
-const view = new ChartView(el, spec, buffer, comm);
-return () => view.destroy();
-}
-
-function renderStandalone(el, spec, arrayBuffer) {
-const buffer = bytesToSpan(arrayBuffer);
-const view = new ChartView(el, spec, buffer, null);
-const column = (idx) => view._columnView(buffer, spec.columns[idx]);
-for (const g of view.gpuTraces) {
-if (markOf(g.trace.kind).retainCpu && g.tier !== "density") {
-g._cpu = {
-x: column(g.trace.x),
-y: column(g.trace.y),
-xMeta: g.xMeta,
-yMeta: g.yMeta,
-};
-if (g.trace.color && Number.isInteger(g.trace.color.buf)) {
-g._cpu.color = column(g.trace.color.buf);
-}
-if (g.trace.size && Number.isInteger(g.trace.size.buf)) {
-g._cpu.size = column(g.trace.size.buf);
-}
-}
-}
-return view;
-}
-
-window.xy = { render, renderStandalone, decodeFrame, ChartView, MARK_KINDS, markOf };
-})();
+`;function gt(){try{let e=URL.createObjectURL(new Blob([ht],{type:`application/javascript`})),t=new Worker(e);return t._fcUrl=e,t}catch{return null}}Object.assign(Z.prototype,{_scheduleViewRequest(e=this.view,t={}){if(this._destroyed||this._glLost)return;if(!this.comm){this._scheduleSampleRebin(e,t);return}let n=this.spec.traces.some(e=>e.tier===`decimated`),r=this.gpuTraces.some(e=>e.tier===`density`);if(!n&&!r)return;let i=t.seq??++this.seq,a=this._copyView(e),o=Math.round(this.plot.w),s=Math.round(this.plot.h);if(r){let e=this._now();for(let t of this.gpuTraces)t.tier===`density`&&(t._lodPendingView=a,t._lodPendingSeq=i,t._lodPendingAt=e)}let c=t.delay??120;if(t.maxWait!==void 0&&t.maxWait!==null){let e=this._now();(this._viewRequestBurstStart===void 0||this._viewRequestBurstStart===null)&&(this._viewRequestBurstStart=e);let n=t.maxWait-(e-this._viewRequestBurstStart);c=n<=0?0:Math.min(c,n)}else this._viewRequestBurstStart=null;clearTimeout(this._viewTimer);let l=()=>{if(!this._destroyed&&(this._viewRequestBurstStart=null,i===this.seq&&(n&&this.comm.send({type:`view`,seq:i,x0:Math.min(a.x0,a.x1),x1:Math.max(a.x0,a.x1),px:o}),r)))for(let e of this.gpuTraces){if(e.tier!==`density`)continue;let[t,n]=this._axisRange(e.xAxis,a),[r,c]=this._axisRange(e.yAxis,a);this.comm.send({type:`density_view`,seq:i,trace:e.trace.id,x0:Math.min(t,n),x1:Math.max(t,n),y0:Math.min(r,c),y1:Math.max(r,c),w:o,h:s})}};return c<=0?l():this._viewTimer=setTimeout(l,c),i},_scheduleSampleRebin(e=this.view,t={}){if(this._destroyed||this._glLost||this._sampleRebinDisabled)return;let n=(this.gpuTraces||[]).filter(e=>e.tier===`density`&&e.sampleOverlay&&e.sampleOverlay._cpu);if(!n.length)return;let r=t.seq??++this.seq,i=this._copyView(e);clearTimeout(this._rebinTimer),this._rebinTimer=setTimeout(()=>{if(!(this._destroyed||r!==this.seq))for(let e of n)this._requestSampleRebin(e,i,r)},t.delay??120)},_requestSampleRebin(e,t,n){e._homeDensity||=e.density;let[r,i]=this._axisRange(e.xAxis,t),[a,o]=this._axisRange(e.yAxis,t),[s,c]=this._axisRange(e.xAxis,this.view0),[l,u]=this._axisRange(e.yAxis,this.view0),d=Math.max(Math.abs(c-s),1e-300),f=Math.max(Math.abs(u-l),1e-300),p=Math.abs(i-r),m=Math.abs(o-a);if(p>=d*.999999&&m>=f*.999999){if(e.density!==e._homeDensity){let t=e._homeDensity;this._applySampleRebinGrid(e,{...t,tex:this._uploadGrid(t.grid,t.w,t.h,t.normMax||t.max||1)},!1)}return}if(!this._sampleRebinDisabled){if(!this._rebinWorker){if(this._rebinWorker=gt(),!this._rebinWorker){this._sampleRebinDisabled=!0;return}this._rebinWorker.onmessage=e=>this._onRebinResult(e.data),this._rebinInit=new Set}if(!this._rebinInit.has(e.trace.id)){let t=e.sampleOverlay._cpu,n=Math.min(t.x.length,t.y.length),r=new Float64Array(n),i=new Float64Array(n);for(let e=0;e<n;e++)r[e]=this._decodeValue(t.x,t.xMeta,e),i[e]=this._decodeValue(t.y,t.yMeta,e);this._rebinWorker.postMessage({type:`init`,trace:e.trace.id,x:r.buffer,y:i.buffer},[r.buffer,i.buffer]),this._rebinInit.add(e.trace.id)}this._rebinWorker.postMessage({type:`rebin`,trace:e.trace.id,seq:n,x0:Math.min(r,i),x1:Math.max(r,i),y0:Math.min(a,o),y1:Math.max(a,o),w:Math.max(16,Math.min(2048,Math.round(this.plot.w))),h:Math.max(16,Math.min(2048,Math.round(this.plot.h)))})}},_onRebinResult(e){if(this._destroyed||this._glLost||!e||e.type!==`grid`||e.seq!==this.seq)return;let t=this.gpuTraces.find(t=>t.trace.id===e.trace&&t.tier===`density`);if(!t)return;let n=new Float32Array(e.grid);this._applySampleRebinGrid(t,{w:e.w,h:e.h,max:e.max,normMax:e.max,colormap:t.density.colormap,xRange:[e.x0,e.x1],yRange:[e.y0,e.y1],grid:n,tex:this._uploadGrid(n,e.w,e.h,e.max||1),lut:t.density.lut},!0)},_applySampleRebinGrid(e,t,n){e.prevDensity=e.density,e._densityFadeStart=this._now(),e.densityNormMax=t.normMax||t.max,e.density=t,e._sampleRebinned=!!n,B(this,e,e.density),this._refreshReductionBadges(),this.draw()},_applyAppend(e,t){let n=e.spec,r=t&&t[0];if(!n||!r||!n.traces)return;let i=s(r),a=(e,t)=>Math.max(Math.abs(t-e),1e-300)*1e-9,o=a(this.view0.x0,this.view0.x1),c=a(this.view0.y0,this.view0.y1),l=Math.abs(this.view.x0-this.view0.x0)<=o&&Math.abs(this.view.x1-this.view0.x1)<=o&&Math.abs(this.view.y0-this.view0.y0)<=c&&Math.abs(this.view.y1-this.view0.y1)<=c,u=!l&&Math.abs(this.view.x1-this.view0.x1)<=o,d={x0:n.x_axis.range[0],x1:n.x_axis.range[1],y0:n.y_axis.range[0],y1:n.y_axis.range[1]},f={...this.view};if(l)f={...d};else if(u){let e=this.view.x1-this.view.x0;f={...this.view,x1:d.x1,x0:d.x1-e}}if((n.animation||n.traces.some(e=>!!e.animation))&&!this._glLost&&this.gl&&this.updatePayload(n,i)){this._transitionView?this._transitionView.to={...f}:this.view={...f},this._scheduleViewRequest(f,{delay:0});return}if(this.spec=n,this.axes=this._normalizeAxes(n),this._payload=i,this.view0=this._copyView({ranges:Object.fromEntries(Object.entries(this.axes).map(([e,t])=>[e,[...t.range]]))}),l)this.view=this._copyView(this.view0);else if(u){let e=this.view.x1-this.view.x0;this.view=this._viewFrom({x1:this.view0.x1,x0:this.view0.x1-e})}if(this._glLost||!this.gl)return;let p=new Set;for(let t of e.affected||[]){let e=this.gpuTraces.findIndex(e=>e.trace.id===t),r=n.traces.find(e=>e.id===t);e<0||!r||(this._destroyTraceResources(this.gpuTraces[e],p),this.gpuTraces[e]=this._buildTrace(i,r))}this._updatePickable(),this._scheduleViewRequest(this.view,{delay:0}),this.draw()},_onKernelMsg(e,t){if(!this._destroyed&&e&&!(this._glLost&&e.type!==`append`&&e.type!==`pick_result`))if(e.type===`tier_update`){if(e.seq!==this.seq)return;for(let n of e.traces){let e=this.gpuTraces.find(e=>e.trace.id===n.id);if(!e)continue;let r=this.gl,i=this._asF32(t[n.x.buf]),a=this._asF32(t[n.y.buf]),o=n.base&&e.baseBuf?this._asF32(t[n.base.buf]):null,s=Math.min(n.x.len,n.y.len);o&&(s=Math.min(s,n.base.len));let c=this._smoothArrays(e.trace,i,a,o,s),l=c||{x:i,y:a,n:s},u=this._stepArrays(e.trace,l.x,l.y,l.n);r.bindBuffer(r.ARRAY_BUFFER,e.xBuf),r.bufferData(r.ARRAY_BUFFER,u?u.x:l.x,r.STATIC_DRAW),r.bindBuffer(r.ARRAY_BUFFER,e.yBuf),r.bufferData(r.ARRAY_BUFFER,u?u.y:l.y,r.STATIC_DRAW),e.xMeta={...e.xMeta,offset:n.x.offset,scale:n.x.scale},e.yMeta={...e.yMeta,offset:n.y.offset,scale:n.y.scale},e._dashX=u?u.x:l.x,e._dashY=u?u.y:l.y,o&&(r.bindBuffer(r.ARRAY_BUFFER,e.baseBuf),r.bufferData(r.ARRAY_BUFFER,c?c.extra:o,r.STATIC_DRAW),e.baseMeta={...e.baseMeta,offset:n.base.offset,scale:n.base.scale}),e.n=u?u.n:l.n}this.draw()}else if(e.type===`density_update`){if(e.seq!==void 0&&e.seq!==this.seq)return;let n=e.traces||[],r=new Set(n.map(e=>Number(e.id)));r.size===0&&e.trace!==void 0&&r.add(Number(e.trace));let i=r.size===0&&e.stale,a=t=>{e.seq!==void 0&&t._lodPendingSeq!==e.seq||(t._lodPendingView=null,t._lodPendingSeq=null,t._lodPendingAt=null)};if(r.size||i)for(let e of this.gpuTraces)e.tier===`density`&&(!i&&!r.has(e.trace.id)||a(e));for(let e of n){let n=this.gpuTraces.find(t=>t.trace.id===e.id&&t.tier===`density`);if(n){if(a(n),e.mode===`points`){this._applyDrill(n,e,t);continue}Qe(this,n,e,t)}}this._updatePickable(),this.draw()}else if(e.type===`append`)this._applyAppend(e,t);else if(e.type===`pick_result`){if(e.seq!==void 0&&e.seq!==this._pickSeq)return;if(!e.row){this._hideTooltip();return}let t=this._lastRow;if(t&&t.trace===e.row.trace&&t.index===e.row.index)for(let[n,r]of Object.entries(t))e.row[n]===void 0&&(e.row[n]=r);this._applySharedTooltipFields(e.row),this._lastRow=e.row,this._tooltipAnchor&&Number.isFinite(e.row.x)&&Number.isFinite(e.row.y)&&(this._tooltipAnchor.x=e.row.x,this._tooltipAnchor.y=e.row.y);let n=this._lastHoverXY;if(n&&this._renderTooltip(e.row,n.clientX,n.clientY,{announce:!this._a11yKeyboardReadout}),this._interactionFlag(`hover`)){let t={row:e.row,trace:e.row.trace,index:e.row.index,exact:!0,view:this._eventView(`hover`)};n&&Object.assign(t,this._hoverPayload(e.row,this._hoverTarget,n.clientX,n.clientY,!0)),this._dispatchChartEvent(`hover`,t)}}else e.type===`selection`?(e.bounds?this._lastBrush={mode:`box`,...e.bounds}:e.polygon&&(this._lastBrush={mode:`poly`,points:e.polygon}),(!e.traces||!e.traces.length)&&(this._lastBrush=null),this._applySelectionBuffers(e,t),this._selectionCount=e.total||0,this.draw(),this._interactionFlag(`select`,!0)&&this._dispatchChartEvent(`select`,{total:this._selectionCount,view:this._eventView(`select`)})):e.type===`state_patch`?this._applyStatePatch(e.state,{source:`api`,animate:e.animate===!0,history:e.history!==!1}):e.type===`view_nav`?e.op===`reset`&&this._navReset(e.axes):e.type===`selection_rows`&&this._applyRowsSelection(e,t)},_applySelectionBuffers(e,t){if(!e.traces||!e.traces.length){for(let e of this.gpuTraces)e.selActive=!1,e.drill&&(e.drill.selActive=!1);return}for(let n of e.traces){let e=this.gpuTraces.find(e=>e.trace.id===n.id);if(!e)continue;let r=e.tier===`density`?e.drill:e;if(!r||!r.n||e.tier===`density`&&n.drill_seq!==void 0&&r.seq!==void 0&&n.drill_seq!==r.seq)continue;let i=this._asU32(t[n.buf]),a=new Float32Array(r.n);for(let e=0;e<i.length;e++)i[e]<r.n&&(a[i[e]]=1);this._applySelMask(r,a)}},_applyDrill(e,t,n){We(this,e,t,n)},_dropDrill(e){Ke(this,e)},_viewInside(e){if(!e)return!1;let{x0:t,x1:n,y0:r,y1:i}=this.view,a=Math.abs(n-t)*1e-4,o=Math.abs(i-r)*1e-4,s=Math.min(t,n),c=Math.max(t,n),l=Math.min(r,i),u=Math.max(r,i),d=Math.min(e.x0,e.x1),f=Math.max(e.x0,e.x1),p=Math.min(e.y0,e.y1),m=Math.max(e.y0,e.y1);return s>=d-a&&c<=f+a&&l>=p-o&&u<=m+o},_viewOverlaps(e){if(!e)return!1;let{x0:t,x1:n,y0:r,y1:i}=this.view,a=Math.min(t,n),o=Math.max(t,n),s=Math.min(r,i),c=Math.max(r,i),l=Math.min(e.x0,e.x1),u=Math.max(e.x0,e.x1),d=Math.min(e.y0,e.y1),f=Math.max(e.y0,e.y1);return a<=u&&o>=l&&s<=f&&c>=d},_viewInsideRange(e,t){return!e||!t?!1:this._viewInside({x0:e[0],x1:e[1],y0:t[0],y1:t[1]})}});var _t={linear:[0,0,1,1],ease:[.25,.1,.25,1],"ease-in":[.42,0,1,1],"ease-out":[0,0,.58,1],"ease-in-out":[.42,0,.58,1]};function vt(e,t){let n=Number(t[0]),r=Number(t[1]),i=Number(t[2]),a=Number(t[3]),o=(e,t,n)=>{let r=1-e;return 3*r*r*e*t+3*r*e*e*n+e*e*e},s=(e,t,n)=>{let r=1-e;return 3*r*r*t+6*r*e*(n-t)+3*e*e*(1-n)},c=e;for(let t=0;t<5;t++){let t=s(c,n,i);if(Math.abs(t)<1e-6)break;c=Math.max(0,Math.min(1,c-(o(c,n,i)-e)/t))}let l=0,u=1;for(let t=0;t<8;t++)o(c,n,i)<e?l=c:u=c,c=(l+u)*.5;return o(c,r,a)}function yt(e,t){let n=Math.max(1e-6,Number(t.stiffness)||170),r=Math.max(1e-6,Number(t.damping)||26),i=Math.max(1e-6,Number(t.mass)||1),a=Math.sqrt(n/i),o=r/(2*Math.sqrt(n*i)),s=e=>{let t=e*6/a;if(o<1){let e=a*Math.sqrt(1-o*o);return 1-Math.exp(-o*a*t)*(Math.cos(e*t)+o*a/e*Math.sin(e*t))}return 1-Math.exp(-a*t)*(1+a*t)},c=s(1),l=Math.abs(c)>1e-9?s(e)/c:e;return Math.max(0,Math.min(1.15,l))}function Q(e,t){return t&&typeof t==`object`&&!Array.isArray(t)&&t.type===`spring`?yt(e,t):vt(e,Array.isArray(t)?t:_t[t]||_t[`ease-out`])}Object.assign(Z.prototype,{_resolvedAnimation(e){return{...this.spec.animation||{},...e&&e.animation||{},_present:!!this.spec.animation||!!(e&&e.animation)}},_animationEnabled(e){return!e._present||e.enabled===!1?!1:e.enabled===!0||!this._prefersReducedMotion()},_defaultEntrance(e){return e===`line`||e===`area`||e===`error_band`?`reveal`:e===`bar`||e===`column`?`grow`:e===`scatter`||e===`errorbar`?`scale`:`none`},_setTransitionVisual(e,t,n,r){let i=Math.max(0,Math.min(1,n));if(e._transitionOpacity=1,e._transitionScale=1,e._transitionReveal=1,e._transitionGrow=1,t===`exit`){e._transitionOpacity=0;return}if(t===`update`){e._transitionPositionProgress=i;return}let a=r.enter||`auto`;a===`auto`&&(a=this._defaultEntrance(e.trace.kind)),a!==`none`&&(a===`scale`&&(e.trace.kind===`scatter`||e.trace.kind===`errorbar`?e._transitionScale=i:e.trace.kind===`bar`||e.trace.kind===`column`?e._transitionGrow=i:(e.trace.kind===`line`||e.trace.kind===`area`||e.trace.kind===`error_band`)&&(e._transitionReveal=i)),a===`reveal`&&(e._transitionReveal=i),a===`grow`&&(e._transitionGrow=i))},_clearTransitionVisual(e){delete e._transitionOpacity,delete e._transitionScale,delete e._transitionReveal,delete e._transitionGrow,delete e._transitionPositionProgress,delete e._transitionPhase,delete e._transitionPrevXValues,delete e._transitionPrevYValues,delete e._transitionPrevPosValues,delete e._transitionPrevValue1Values,delete e._transitionPrevValue0Values,delete e._transitionPrevWidth,delete e._transitionPositionInterpolated,this._deleteBuffers(e,[`_transitionPrevXBuf`,`_transitionPrevYBuf`,`_transitionPrevPosBuf`,`_transitionPrevValue1Buf`,`_transitionPrevValue0Buf`])},_emitAnimationLifecycle(e,t,n={}){let r={stage:e,phase:t,...n,view:this._eventView(`animation_${e}`)};this._dispatchChartEvent(`animation_${e}`,r),this.comm?.send?.({type:`animation_${e}`,phase:t,...n})},_runDataAnimation(e,t,n=[]){this._dataAnimRaf&&cancelAnimationFrame(this._dataAnimRaf);let r=(this._dataAnimEpoch||0)+1;this._dataAnimEpoch=r;let i=[];for(let n of t){let t=this._resolvedAnimation(n.trace),r=n._transitionPhase||e;if(!this._animationEnabled(t)||r===`enter`&&t.enter===`none`||r===`update`&&t.update===`none`){this._clearTransitionVisual(n);continue}i.push({g:n,config:t,phase:r,delay:Number(t.delay)||0,duration:Math.max(0,Number(t.duration)||0)})}for(let e of n)e._transitionOpacity=0;if(!i.length){for(let e of t)this._clearTransitionVisual(e);return this._transitionView&&=(this.view={...this._transitionView.to},null),this._destroyTransitionOldTraces(),this.draw(),!1}let a=this._now();this._dataAnim={epoch:r,phase:e,start:a},this._emitAnimationLifecycle(`start`,e);let o=()=>{if(this._destroyed||!this._dataAnim||this._dataAnim.epoch!==r)return;let t=this._now(),n=!1,s=0;for(let e of i){let r=e.duration<=0?+(t>=a+e.delay):Math.max(0,Math.min(1,(t-a-e.delay)/e.duration));this._transitionView&&(s=Math.max(s,r));let i=Q(r,e.config.easing);this._setTransitionVisual(e.g,e.phase,i,e.config),r<1&&(n=!0)}if(this._transitionView){let e=Q(s,(this.spec.animation||{}).easing),t=this._transitionView.from,n=this._transitionView.to;this.view={x0:t.x0+(n.x0-t.x0)*e,x1:t.x1+(n.x1-t.x1)*e,y0:t.y0+(n.y0-t.y0)*e,y1:t.y1+(n.y1-t.y1)*e}}if(this.draw(),n)this._dataAnimRaf=requestAnimationFrame(o);else{this._dataAnimRaf=null;for(let e of i)this._clearTransitionVisual(e.g);this._finishDataAnimation(e)}};return this._dataAnimRaf=requestAnimationFrame(o),!0},_finishDataAnimation(e){this._dataAnim=null,this._transitionView&&=(this.view={...this._transitionView.to},null),this._destroyTransitionOldTraces(),this._emitAnimationLifecycle(`end`,e)},_startEntranceAnimation(){let e=Number(this.spec.animation_capture_progress);if(Number.isFinite(e)&&e>=0&&e<=1){for(let t of this.gpuTraces||[]){let n=this._resolvedAnimation(t.trace);n._present&&n.enabled!==!1&&n.enter!==`none`?this._setTransitionVisual(t,`enter`,Q(e,n.easing),n):this._clearTransitionVisual(t)}this.draw();return}this._runDataAnimation(`enter`,this.gpuTraces||[])},_destroyTransitionOldTraces(){if(!this._transitionOldTraces||!this.gl){this._transitionOldTraces=null;return}let e=new Set;for(let t of this._transitionOldTraces)this._destroyTraceResources(t,e);this._transitionOldTraces=null},_transitionMatches(e,t,n){let r=n.match||`index`,i=[],a=t.trace.animation_fallback||null;if((e.n||0)>2e5||(t.n||0)>2e5)return{strategy:`snap`,pairs:i,fallback:a||`snap:${r}-match-limit`};if(r===`key`)if(e._transitionKeyIndex&&t._transitionKeys)for(let n=0;n<t._transitionKeys.length;n++){let r=e._transitionKeyIndex.get(t._transitionKeys[n]);r!==void 0&&i.push([r,n])}else a||=`index:missing-keys`,r=`index`;if(r===`append`){let n=e._cpu&&e._cpu.x,o=t._cpu&&t._cpu.x;if(n&&o&&n.length<=2e5&&o.length<=2e5){let r=new Map;for(let t=0;t<n.length;t++){let i=this._decodeValue(n,e.xMeta,t);Number.isFinite(i)&&r.set(i.toPrecision(12),t)}for(let e=0;e<o.length;e++){let n=this._decodeValue(o,t.xMeta,e),a=Number.isFinite(n)?r.get(n.toPrecision(12)):void 0;a!==void 0&&i.push([a,e])}}else a||=`index:append-limit`,r=`index`}if(r===`index`){let n=Math.min(e.n||0,t.n||0);for(let e=0;e<n;e++)i.push([e,e])}return{strategy:r,pairs:i,fallback:a}},_recordAnimationFallback(e,t){!e||!t||(e.animation_fallback=t,this.root&&this.root.dataset&&(this.root.dataset.xyAnimationFallback=t))},_preparePositionInterpolation(e,t,n){let r=t._transitionMatch,i=n.interpolate||[];if(n.update!==`interpolate`||!i.includes(`position`)||!r)return!1;if([`bar`,`column`].includes(t.trace.kind))return this._prepareBarPositionInterpolation(e,t,r);if(![`scatter`,`line`].includes(t.trace.kind))return!1;if(!e._cpu||!t._cpu||t.n!==t._cpu.x.length||e.n!==e._cpu.x.length)return r.fallback||=`snap:layout-mismatch`,!1;let a=new Float32Array(t._cpu.x),o=new Float32Array(t._cpu.y),s=(e,t)=>(e-(Number(t.offset)||0))*(Number(t.scale)||1),c=(t,n)=>{let r=e._cpu[t],i=e[t===`x`?`_transitionPrevXValues`:`_transitionPrevYValues`],a=e._transitionPositionProgress;if(!i||!Number.isFinite(a))return this._decodeValue(r,e[`${t}Meta`],n);let o=i[n]+(r[n]-i[n])*a,s=e[`${t}Meta`];return o/(s.scale||1)+s.offset};for(let[e,n]of r.pairs){let r=c(`x`,e),i=c(`y`,e);Number.isFinite(r)&&Number.isFinite(i)&&(a[n]=s(r,t.xMeta),o[n]=s(i,t.yMeta))}return t._transitionPrevXBuf=this._upload(a),t._transitionPrevYBuf=this._upload(o),t._transitionPrevXValues=a,t._transitionPrevYValues=o,t._transitionPositionProgress=0,t._transitionPositionInterpolated=!0,e._transitionSkipExit=!0,!0},_prepareBarPositionInterpolation(e,t,n){let r=e._cpuBar,i=t._cpuBar;if(!r||!i||e.orientation!==t.orientation||t.n!==i.pos.length||e.n!==r.pos.length)return n.fallback||=`snap:layout-mismatch`,!1;let a=new Float32Array(i.pos),o=new Float32Array(i.value1),s=new Float32Array(t.n),c=(e,t)=>(e-(Number(t.offset)||0))*(Number(t.scale)||1),l=(e,t)=>e/(Number(t.scale)||1)+(Number(t.offset)||0),u=(e,t)=>e.value0?l(e.value0[t],e.value0Meta):Number(e.value0Const)||0,d=(t,n,r,i)=>{let a=e._transitionPositionProgress;return l(!t||!Number.isFinite(a)?n[i]:t[i]+(n[i]-t[i])*a,r)},f=t=>{let n=e._transitionPrevValue0Values,i=e._transitionPositionProgress,a=u(r,t);if(!n||!Number.isFinite(i))return a;let o=l(n[t],r.value1Meta);return o+(a-o)*i};for(let e=0;e<t.n;e++)s[e]=c(u(i,e),i.value1Meta);for(let[t,l]of n.pairs){let n=d(e._transitionPrevPosValues,r.pos,r.posMeta,t),u=d(e._transitionPrevValue1Values,r.value1,r.value1Meta,t),p=f(t);Number.isFinite(n)&&Number.isFinite(p)&&Number.isFinite(u)&&(a[l]=c(n,i.posMeta),o[l]=c(u,i.value1Meta),s[l]=c(p,i.value1Meta))}let p=e._transitionPositionProgress,m=Number.isFinite(e._transitionPrevWidth)&&Number.isFinite(p)?e._transitionPrevWidth+(r.width-e._transitionPrevWidth)*p:r.width;return t._transitionPrevPosBuf=this._upload(a),t._transitionPrevValue1Buf=this._upload(o),t._transitionPrevValue0Buf=this._upload(s),t._transitionPrevPosValues=a,t._transitionPrevValue1Values=o,t._transitionPrevValue0Values=s,t._transitionPrevWidth=m,t._transitionPositionProgress=0,t._transitionPositionInterpolated=!0,e._transitionSkipExit=!0,!0},updatePayload(e,t){if(this._destroyed||!e||e.protocol!==4)return!1;this._dataAnimRaf&&cancelAnimationFrame(this._dataAnimRaf),this._dataAnimRaf=null,this._dataAnim&&this._emitAnimationLifecycle(`end`,this._dataAnim.phase,{cancelled:!0}),this._dataAnim=null,this._destroyTransitionOldTraces();let n=this.gpuTraces||[],r={...this.view};this.spec=e,this.interaction=e.interaction||{},this.markStyle=e.mark_style||{},this.axes=this._normalizeAxes(e),this._payload=t,this.view0=void 0,this.view0=this._clampView({ranges:Object.fromEntries(Object.entries(this.axes).map(([e,t])=>[e,[...t.range]]))});let i={...this.view0};if(this._glLost||!this.gl)return this.view={...i},!0;this.gpuTraces=e.traces.map(e=>this._buildTrace(t,e));for(let e of this.gpuTraces){let t=n.find(t=>t.trace.id===e.trace.id&&t.trace.kind===e.trace.kind);if(t){let n=this._resolvedAnimation(e.trace);t._transitionExitTrace=e.trace,this._animationEnabled(n)&&n.update!==`none`&&(e._transitionMatch=this._transitionMatches(t,e,n),this._preparePositionInterpolation(t,e,n),t._transitionSkipExit=!0,this._recordAnimationFallback(e.trace,e._transitionMatch.fallback))}else e._transitionPhase=`enter`}this._transitionOldTraces=n;let a=this.gpuTraces.some(e=>{let t=this._resolvedAnimation(e.trace);return this._animationEnabled(t)&&t.update===`interpolate`&&(t.interpolate||[]).includes(`domain`)});return this._transitionView=a?{from:r,to:i}:null,a||(this.view={...i}),this._updatePickable(),this._runDataAnimation(`update`,this.gpuTraces,n)||(this.view={...i},this._transitionView=null),!0}});var bt=64;Object.assign(Z.prototype,{_initViewState(){this._historyPast=[],this._historyFuture=[],this._historyLastInteractionId=null,this._stateSelection=null,this._customTooltip=null,this.root.xy={applyState:(e,t={})=>this._applyStatePatch(e,{source:`api`,animate:t.animate===!0,history:t.history!==!1}),state:()=>this._durableState(),back:()=>this._historyBack(),forward:()=>this._historyForward()}},_durableState(){let e=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e)]])),t=this._stateSelection;return{v:1,ranges:e,selection:t==null?null:t.rows?{rows:!0}:t.range?{range:{...t.range}}:{polygon:t.polygon.map(e=>[...e])}}},_validateStatePatch(e){if(!e||typeof e!=`object`||Array.isArray(e))return`state patch must be an object`;if(e.v!==void 0&&e.v!==1)return`unsupported state version ${e.v}`;for(let t of Object.keys(e))if(![`v`,`ranges`,`selection`].includes(t))return`unknown key ${t}`;if(e.ranges!==void 0){if(!e.ranges||typeof e.ranges!=`object`||Array.isArray(e.ranges))return`ranges must be an object`;let t=new Set(this._axisIds());for(let[n,r]of Object.entries(e.ranges)){if(!t.has(n))return`unknown axis ${n}`;if(!Array.isArray(r)||r.length!==2||!r.every(e=>Number.isFinite(e))||r[0]===r[1])return`invalid range for axis ${n}`}}if(e.selection!==void 0&&e.selection!==null){let t=e.selection;if(typeof t!=`object`||Array.isArray(t))return`invalid selection`;let n=Object.keys(t);if(n.length!==1)return`invalid selection`;if(n[0]===`range`){let e=t.range;if(!e||typeof e!=`object`||![`x0`,`x1`,`y0`,`y1`].every(t=>Number.isFinite(e[t])))return`invalid selection range`}else if(n[0]===`polygon`){let e=t.polygon;if(!Array.isArray(e)||e.length<3||!e.every(e=>Array.isArray(e)&&e.length===2&&e.every(Number.isFinite)))return`invalid selection polygon`}else if(n[0]===`rows`)return`rows selections are not applicable state`;else return`invalid selection`}return null},_applyStatePatch(e,t={}){if(this._destroyed)return!1;let n=this._validateStatePatch(e);if(n)return typeof console<`u`&&console.warn&&console.warn(`xy: state patch rejected: ${n}`),!1;let r=t.source||`api`,i=++this._interactionSeq;if(e.ranges!==void 0){let n=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e)]]));for(let[t,r]of Object.entries(e.ranges))n[t]=[Number(r[0]),Number(r[1])];this._setView({ranges:n},{animate:t.animate===!0,source:r,phase:`end`,interactionId:i,history:t.history})}if(e.selection!==void 0){let n=e.selection,a={history:t.history,interactionId:i,source:r};if(n===null)this._clearSelection(a);else if(n.range){let{x0:e,x1:t,y0:r,y1:i}=n.range;this._sendSelect([e,r],[t,i],a)}else n.polygon&&this._sendSelectPolygon(n.polygon.map(e=>[...e]),a)}return!0},_historyEnabled(){return this._interactionFlag(`history`,!0)},_historyRecord(e={}){if(!this._historyPast||!this._historyEnabled()||this._destroyed||e.history===!1||e.source===`linked`||e.source===`history`)return;let t=e.interactionId;t!=null&&t===this._historyLastInteractionId||(this._historyLastInteractionId=t===void 0?null:t,this._historyPast.push(this._durableState()),this._historyPast.length>bt&&this._historyPast.shift(),this._historyFuture.length=0,this._updateHistoryButtons())},_historyBack(){if(!this._historyEnabled()||!this._historyPast.length)return!1;let e=this._historyPast.pop();return this._historyFuture.push(this._durableState()),this._historyApply(e),!0},_historyForward(){if(!this._historyEnabled()||!this._historyFuture.length)return!1;let e=this._historyFuture.pop();return this._historyPast.push(this._durableState()),this._historyApply(e),!0},_historyApply(e){let t={v:1,ranges:e.ranges};(!e.selection||!e.selection.rows)&&(t.selection=e.selection??null),this._applyStatePatch(t,{source:`history`,animate:!0,history:!1}),this._historyLastInteractionId=null,this._updateHistoryButtons()},_updateHistoryButtons(){let e=(e,t)=>{e&&(e.disabled=!t,e.setAttribute(`aria-disabled`,String(!t)),e.style.opacity=t?``:`0.4`)};e(this._historyBackBtn,this._historyPast.length>0),e(this._historyForwardBtn,this._historyFuture.length>0)},_navReset(e){let t=Array.isArray(e)?e.filter(e=>this._axisIds().includes(e)):null;this._resetView(!0,`reset`,t)},_applyRowsSelection(e,t){this._clearLassoOverlay();for(let e of this.gpuTraces)e.selActive=!1,e.drill&&(e.drill.selActive=!1);this._lastBrush=null,this._applySelectionBuffers(e,t),this._stateSelection={rows:!0},this._selectionCount=e.total||0,this.draw(),this._interactionFlag(`select`,!0)&&this._dispatchChartEvent(`select`,{total:this._selectionCount,view:this._eventView(`select`)})},_axisBandNavigable(e){if(!this._interactionFlag(`navigation`,!0))return!1;let t=this._interactionFlag(`pan`,!0)&&this._axisPolicy(`pan_axes`).includes(e),n=this._interactionFlag(`zoom`,!0)&&this._axisPolicy(`zoom_axes`).includes(e);return t||n},_axisBandCursor(e,t){return this._interactionFlag(`zoom`,!0)&&this._axisPolicy(`zoom_axes`).includes(e)?t===`x`?`ew-resize`:`ns-resize`:`grab`},_initAxisBands(){if(this.root){this._axisBands={};for(let e of this._axisIds()){if(!this._axisBandNavigable(e))continue;let t=this._axisDim(e),n=document.createElement(`div`);n.dataset.xyAxisBand=e,n.style.cssText=`position:absolute;z-index:2;touch-action:none;cursor:${this._axisBandCursor(e,t)};`,this.root.appendChild(n),this._axisBands[e]=n,this._bindAxisBand(n,e,t)}this._layoutAxisBands()}},_layoutAxisBands(){if(this._axisBands)for(let[e,t]of Object.entries(this._axisBands)){let n=this._axisDim(e),r=this._axis(e).side;n===`x`?(t.style.left=`${this.plot.x}px`,t.style.width=`${this.plot.w}px`,r===`top`?(t.style.top=`${Math.max(0,this.plot.y-24)}px`,t.style.height=`30px`):(t.style.top=`${this.plot.y+this.plot.h-6}px`,t.style.height=`30px`)):(t.style.top=`${this.plot.y}px`,t.style.height=`${this.plot.h}px`,r===`right`?(t.style.left=`${this.plot.x+this.plot.w-6}px`,t.style.width=`30px`):(t.style.left=`${Math.max(0,this.plot.x-24)}px`,t.style.width=`30px`))}},_axisBandValue(e,t,n){let r=this.canvas.getBoundingClientRect();if(this._axisDim(e)===`x`){let n=Math.max(0,Math.min(r.width,t-r.left));return this._dataFromCanvas(n,0,e,`y`)[0]}let i=Math.max(0,Math.min(r.height,n-r.top));return this._dataFromCanvas(0,i,`x`,e)[1]},_bindAxisBand(e,t,n){let r=null;this._listen(e,`wheel`,e=>{if(!this._interactionFlag(`navigation`,!0)||!this._interactionFlag(`zoom`,!0)||!this._interactionFlag(`wheel_zoom`,!0)||!this._axisPolicy(`zoom_axes`).includes(t))return;e.preventDefault();let n=1.0015**e.deltaY,r=this.canvas.getBoundingClientRect(),i=(e.clientX-r.left)/r.width,a=1-(e.clientY-r.top)/r.height;this._queueWheelZoom(n,i,a,[t])},{passive:!1}),this._listen(e,`pointerdown`,n=>{if(!(n.pointerType===`mouse`&&n.button!==0)&&this._interactionFlag(`navigation`,!0)){this._cancelViewAnimation(),r={pointerId:n.pointerId,sx:n.clientX,sy:n.clientY,view:this._copyView(this.view),d0:this._axisBandValue(t,n.clientX,n.clientY),mode:null,interactionId:++this._interactionSeq,changedAxes:[]};try{e.setPointerCapture(n.pointerId)}catch{}this.tooltip.style.display=`none`,n.preventDefault()}});let i=()=>this._interactionFlag(`pan`,!0)&&this._axisPolicy(`pan_axes`).includes(t)?!0:this._axisContained(t),a=()=>this._interactionFlag(`zoom`,!0)&&this._interactionFlag(`box_zoom`,!0)&&this._axisPolicy(`zoom_axes`).includes(t);this._listen(e,`pointermove`,o=>{if(!r||o.pointerId!==r.pointerId)return;let s=o.clientX-r.sx,c=o.clientY-r.sy;if(!r.mode){if(Math.hypot(s,c)<=3)return;r.mode=Math.abs(n===`x`?s:c)>=Math.abs(n===`x`?c:s)?i()?`pan`:a()?`span`:`none`:a()?`span`:i()?`pan`:`none`,r.mode===`pan`&&(e.style.cursor=`grabbing`)}if(r.mode===`pan`){let e=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e,r.view)]])),i=this._axis(t),[a,o]=this._axisRange(t,r.view),l=this._axisCoord(i,a),u=this._axisCoord(i,o);if(![l,u].every(Number.isFinite)||l===u)return;let d=n===`x`?this.plot.w:this.plot.h,f=(n===`x`?s:c)/d*(u-l),p=n===`x`?-f:f;e[t]=[this._axisValue(i,l+p),this._axisValue(i,u+p)];let m=this._setView({ranges:e},{source:`pan_drag`,phase:`update`,interactionId:r.interactionId});r.changedAxes=[...new Set([...r.changedAxes,...m])]}else if(r.mode===`span`){let e=this.root.getBoundingClientRect();if(this.selRect.dataset.xyBand=`zoom`,this.selRect.style.display=`block`,n===`x`){let t=Math.max(this.plot.x,Math.min(this.plot.x+this.plot.w,Math.min(r.sx,o.clientX)-e.left)),n=Math.max(this.plot.x,Math.min(this.plot.x+this.plot.w,Math.max(r.sx,o.clientX)-e.left));this.selRect.style.left=`${t}px`,this.selRect.style.width=`${Math.max(0,n-t)}px`,this.selRect.style.top=`${this.plot.y}px`,this.selRect.style.height=`${this.plot.h}px`}else{let t=Math.max(this.plot.y,Math.min(this.plot.y+this.plot.h,Math.min(r.sy,o.clientY)-e.top)),n=Math.max(this.plot.y,Math.min(this.plot.y+this.plot.h,Math.max(r.sy,o.clientY)-e.top));this.selRect.style.top=`${t}px`,this.selRect.style.height=`${Math.max(0,n-t)}px`,this.selRect.style.left=`${this.plot.x}px`,this.selRect.style.width=`${this.plot.w}px`}}o.preventDefault()});let o=i=>{if(!r||i.pointerId!==r.pointerId)return;let a=r;if(r=null,e.style.cursor=this._axisBandCursor(t,n),a.mode===`span`&&(this.selRect.style.display=`none`),i.type!==`pointercancel`){if(a.mode===`pan`&&a.changedAxes.length)this._emitViewChange(`pan_drag`,{axes:a.changedAxes,phase:`end`,interactionId:a.interactionId});else if(a.mode===`span`){let e=this._axisBandValue(t,i.clientX,i.clientY),n=this._axis(t),r=this._axisCoord(n,a.d0),o=this._axisCoord(n,e),s=Math.max(Math.abs(r),Math.abs(o),1e-30)*1e-12;if(![r,o].every(Number.isFinite)||Math.abs(o-r)<s)return;let[c,l]=this._axisRange(t),u=this._axisCoord(n,l)<this._axisCoord(n,c),d=Math.min(r,o),f=Math.max(r,o),p=Object.fromEntries(this._axisIds().map(e=>[e,[...this._axisRange(e)]]));p[t]=[this._axisValue(n,u?f:d),this._axisValue(n,u?d:f)],this._setView({ranges:p},{animate:!0,anchors:{[t]:.5},source:`box_zoom`,phase:`end`,interactionId:a.interactionId})}}};this._listen(e,`pointerup`,o),this._listen(e,`pointercancel`,o)},_seriesColorCss(e){let t=e&&e.color;if(!Array.isArray(t)||t.length<3)return null;let n=e=>Math.max(0,Math.min(255,Math.round(Number(e)*255)));return`rgb(${n(t[0])}, ${n(t[1])}, ${n(t[2])})`},_hoverPayload(e,t,n,r,i=!1){let a=this.root.getBoundingClientRect(),o=this.canvas.getBoundingClientRect(),s=Math.max(0,Math.min(o.width,n-o.left)),c=Math.max(0,Math.min(o.height,r-o.top)),l={};for(let e of this._axisIds()){let t=this._axisDim(e),[n,r]=this._dataFromCanvas(s,c,t===`x`?e:`x`,t===`y`?e:`y`);l[e]=t===`x`?n:r}let u=t&&t.g,d=e?[{trace:u&&u.trace&&u.trace.name||e.trace,index:e.index,row:e,x_axis:u&&u.xAxis||`x`,y_axis:u&&u.yAxis||`y`,color:this._seriesColorCss(u)}]:[],f={active:!0,cursor:{px:[n-a.left,r-a.top],data:l},points:d};return i&&(f.exact=!0),f},setCustomTooltip(e){if(this.tooltip){if(!e){this._customTooltip=null,delete this.tooltip.dataset.xyCustomTooltip,this.tooltip.style.background=``,this.tooltip.style.border=``,this.tooltip.style.padding=``,this.tooltip.replaceChildren(),this.tooltip.style.display=`none`;return}this._customTooltip=e,this.tooltip.dataset.xyCustomTooltip=``,this.tooltip.style.background=`transparent`,this.tooltip.style.border=`none`,this.tooltip.style.padding=`0`,e.style.display=``,this.tooltip.replaceChildren(e)}}});function xt(e,t){if(e.buffer_layout===`split`){if(!Array.isArray(t))throw Error(`xy: spec says buffer_layout=split but the transport delivered one buffer`);return t.map(s)}if(Array.isArray(t))throw Error(`xy: transport delivered a buffer list but the spec is not split-layout`);return s(t)}function $({model:e,el:t}){let n=e.get(`spec`),r=new Z(t,n,xt(n,e.get(`buffers`)),{send:t=>e.send(t),wantsViewChange:()=>n.interaction?._transport_view_change===!0,onMessage:t=>{let n=(e,n)=>t(e,n);return e.on(`msg:custom`,n),()=>e.off?.(`msg:custom`,n)}});return()=>r.destroy()}function St(e,t,n){let r=s(n),i=new Z(e,t,r,null),a=e=>i._columnView(r,t.columns[e]);for(let e of i.gpuTraces)q(e.trace.kind).retainCpu&&e.tier!==`density`&&(e._cpu={x:a(e.trace.x),y:a(e.trace.y),xMeta:e.xMeta,yMeta:e.yMeta},e.trace.color&&Number.isInteger(e.trace.color.buf)&&(e._cpu.color=a(e.trace.color.buf)),e.trace.size&&Number.isInteger(e.trace.size.buf)&&(e._cpu.size=a(e.trace.size.buf)));return i}var Ct={render:$,decodeFrame:f};return e.ChartView=Z,e.MARK_KINDS=K,e.decodeFrame=f,e.default=Ct,e.markOf=q,e.render=$,e.renderStandalone=St,e})({});
\ No newline at end of file
diff --git a/scripts/verify_sdist.py b/scripts/verify_sdist.py
index 1da2e58a..8e9f301b 100644
--- a/scripts/verify_sdist.py
+++ b/scripts/verify_sdist.py
@@ -65,15 +65,19 @@
     "spec/assets/launch-benchmark-comparison.svg",
     "hatch_build.py",
     "pyproject.toml",
-    "js/src/00_header.js",
-    "js/src/10_colormaps.js",
-    "js/src/20_theme.js",
-    "js/src/30_ticks.js",
-    "js/src/40_gl.js",
-    "js/src/45_lod.js",
-    "js/src/50_chartview.js",
-    "js/src/55_marks.js",
-    "js/src/60_entries.js",
+    "js/build.mjs",
+    "js/tsconfig.json",
+    "js/src/00_header.ts",
+    "js/src/10_colormaps.ts",
+    "js/src/20_theme.ts",
+    "js/src/30_ticks.ts",
+    "js/src/40_gl.ts",
+    "js/src/45_lod.ts",
+    "js/src/50_chartview.ts",
+    "js/src/55_marks.ts",
+    "js/src/60_entries.ts",
+    "package.json",
+    "package-lock.json",
     "python/xy/__init__.py",
     "python/xy/_framing.py",
     "python/xy/_native.py",
@@ -328,19 +332,27 @@ def verify_sdist(path: str) -> None:
         path,
         root,
         "python/xy/static/index.js",
-        {"export { render", "function render(", "function decodeFrame(", "class ChartView"},
+        # The bundle is minified (identifiers renamed), so markers are the
+        # export aliases the minifier must preserve.
+        {"as render", "as renderStandalone", "as decodeFrame", "as ChartView"},
     )
     _require_file_contains(
         path,
         root,
         "python/xy/static/standalone.js",
-        {"window.xy", "function renderStandalone(", "function decodeFrame(", "class ChartView"},
+        # Minified IIFE: a top-level `var xy` namespace (window.xy in the
+        # classic <script> that to_html emits) carrying the public surface.
+        {"var xy=", ".renderStandalone=", ".decodeFrame=", ".ChartView="},
     )
     _require_file_contains(
         path,
         root,
-        "js/src/60_entries.js",
-        {"function render(", "function renderStandalone(", "// ---- exports ----"},
+        "js/src/60_entries.ts",
+        {
+            "export function render(",
+            "export function renderStandalone(",
+            "export default { render, decodeFrame };",
+        },
     )
     _require_file_contains(
         path,
diff --git a/scripts/verify_wheel.py b/scripts/verify_wheel.py
index 5372300d..8b5cd633 100644
--- a/scripts/verify_wheel.py
+++ b/scripts/verify_wheel.py
@@ -335,12 +335,14 @@ def verify_wheel(path: Path, *, expect_native: Optional[bool]) -> None:
         _require_static_bundle(
             "xy/static/index.js",
             zf.read("xy/static/index.js"),
-            {"export { render", "function render(", "function decodeFrame(", "class ChartView"},
+            # Minified bundle: assert the export aliases, not source lines.
+            {"as render", "as renderStandalone", "as decodeFrame", "as ChartView"},
         )
         _require_static_bundle(
             "xy/static/standalone.js",
             zf.read("xy/static/standalone.js"),
-            {"window.xy", "function renderStandalone(", "function decodeFrame(", "class ChartView"},
+            # Minified IIFE namespace: `var xy` is window.xy in a classic script.
+            {"var xy=", ".renderStandalone=", ".decodeFrame=", ".ChartView="},
         )
 
     forbidden = sorted(
diff --git a/spec/api/chart-kind-contract.md b/spec/api/chart-kind-contract.md
index 57f0feb3..5dce7618 100644
--- a/spec/api/chart-kind-contract.md
+++ b/spec/api/chart-kind-contract.md
@@ -23,7 +23,7 @@ reduces to a few GPU primitives on top of the shared infrastructure.
 
 Establish the primitive once; the charts sharing it are mostly wiring.
 
-The registry is the authority on what exists. `MARK_KINDS` (`js/src/55_marks.js`)
+The registry is the authority on what exists. `MARK_KINDS` (`js/src/55_marks.ts`)
 holds eighteen kinds today — `area`, `bar`, `box`, `box_median`, `box_whisker`,
 `column`, `contour`, `error_band`, `errorbar`, `heatmap`, `hexbin`, `histogram`,
 `line`, `scatter`, `segments`, `stem`, `triangle_mesh`, `violin` — each with a
@@ -65,7 +65,7 @@ constant (`hex_dx`/`hex_dy`). Each renderer expands the six-triangle fan locally
 so the wire cost stays O(cells) instead of O(cells × vertices × channels).
 
 Three renderers expand it today and must agree exactly: `_buildHexbinMark`
-(`js/src/50_chartview.js:2038`, WebGL), `HEX_RING`/`hexbin_ring()`
+(`js/src/50_chartview.ts:2038`, WebGL), `HEX_RING`/`hexbin_ring()`
 (`python/xy/_svg.py:2074`, the reference ring), and `_emit_hexbin`
 (`python/xy/_raster.py:1413`, raster export, consuming `hexbin_ring`). Only code
 comments bind them; changing one without the others silently desynchronizes
@@ -112,7 +112,7 @@ cell came from.
 
 **Fill.** One color per cell, applied to the whole hexagon, with fill alpha
 `style.opacity × style.fill_opacity` — the same product in all three
-(`_svg._fill_opacity`, `_raster._fill_opacity`, `50_chartview.js:1880`).
+(`_svg._fill_opacity`, `_raster._fill_opacity`, `50_chartview.ts:1880`).
 
 Cells are unstroked, but the three renderers reach that outcome differently and
 only the style keeps them agreeing: `marks.hexbin` builds its style from
@@ -140,13 +140,13 @@ style, per-cell data on the wire, one ring definition the other renderers cite.
 
 ### 2. Client — `js/src/`
 
-- **`55_marks.js`: a `MARK_KINDS[K]` entry** with `build(view, g, trace, buffer)`
+- **`55_marks.ts`: a `MARK_KINDS[K]` entry** with `build(view, g, trace, buffer)`
   (GPU setup onto the gpu record `g`) and `draw(view, g, x0, x1, y0, y1)` (one
   frame). Reuse `view._buildXY` and `view._map` for xy-shaped marks; a mark with
   its own vertex layout (bars, candles = instanced rects) uploads its own
   buffers and computes its own transform. This is the only place the render loop
   learns about a new kind.
-- **Shaders** (if the mark needs a new primitive): add to `40_gl.js`. Fragment
+- **Shaders** (if the mark needs a new primitive): add to `40_gl.ts`. Fragment
   shaders must be `precision highp` for any uniform shared with the vertex stage
   (a caught precision-mismatch bug). Reuse `POINT`/`LINE` programs where the
   geometry matches.
@@ -178,7 +178,7 @@ benchmark tracks this as part of the core 2D payload budget.
 - **Responsive sizing**: `width/height:"100%"` + ResizeObserver.
 - **Precision**: canonical f64 CPU-side; f32 upload offset-encoded and
   re-centered on deep zoom (§16). Never send f64 through the GPU path.
-- **LOD/drill framework** (`lod.py` + `45_lod.js`): the visible-count tier
+- **LOD/drill framework** (`lod.py` + `45_lod.ts`): the visible-count tier
   decision with hysteresis, drilled-subset versioning (`drill_seq`), window
   encoding, screen-derived grid shaping, entry/exit fades, the density-source
   cache, and eased normalization. An *aggregating* kind supplies its own
diff --git a/spec/api/chart-roadmap.md b/spec/api/chart-roadmap.md
index 575669d7..6a2e80b4 100644
--- a/spec/api/chart-roadmap.md
+++ b/spec/api/chart-roadmap.md
@@ -254,7 +254,7 @@ logic is chart-agnostic and factored out on both sides of the wire —
 `python/xy/lod.py` (visible-window mask, hysteresis drill decision,
 drilled-subset bookkeeping incl. `drill_seq`, §16 window-centered encoding,
 screen-derived grid shape, per-point local log-density, wire-buffer packing)
-and `js/src/45_lod.js` (drill lifecycle with entry/exit fades and the dying
+and `js/src/45_lod.ts` (drill lifecycle with entry/exit fades and the dying
 state, density-source cache, texture crossfades, eased exposure
 normalization). `interaction.density_view` and ChartView are thin scatter
 wiring over these; a heatmap or histogram tier should reuse them with a
diff --git a/spec/api/export.md b/spec/api/export.md
index 1a8538fa..eba531b6 100644
--- a/spec/api/export.md
+++ b/spec/api/export.md
@@ -43,7 +43,7 @@ not `Engine.default` to the browser, so `Engine.auto` there means Chromium, not
 `ExportConfig` is pure description. Beyond seeding the Python defaults above it
 governs the client modebar's download menu (formats and order, filename
 basename); `pdf` and `html` are accepted in `formats=` but are Python-side only
-and are skipped in the browser menu (`js/src/53_interaction.js:1020-1038`, where
+and are skipped in the browser menu (`js/src/53_interaction.ts:1020-1038`, where
 `EXPORT_ITEMS` enumerates only png/jpeg/webp/svg/csv and the build loop drops any
 configured name with no entry). With no `export` spec the menu falls back to
 `["png", "svg", "csv"]`; an explicit empty list hides the download items.
@@ -152,9 +152,9 @@ style).
 **Open gap: screen/export theme parity.** Kernel-side export resolves color
 tokens statically from `spec["dom"]["style"]` — the tokens the chart declared in
 Python (`_svg._resolve_static_css_vars`). The live client instead reads
-*computed* CSS off the chart root (`readTheme`, `js/src/20_theme.js:51`) and
+*computed* CSS off the chart root (`readTheme`, `js/src/20_theme.ts:51`) and
 re-reads it on scheme change or a class mutation via `refreshTheme()`
-(`js/src/50_chartview.js:4037`). That refresh is **local to the browser**: no
+(`js/src/50_chartview.ts:4037`). That refresh is **local to the browser**: no
 theme snapshot ever travels back. The eight client→kernel request types are
 enumerated exhaustively in [wire-protocol.md](../design/wire-protocol.md) §2, and
 their fields are view geometry, screen dimensions, trace/vertex indices,
diff --git a/spec/api/interaction.md b/spec/api/interaction.md
index b94f2d8f..9cbe77cd 100644
--- a/spec/api/interaction.md
+++ b/spec/api/interaction.md
@@ -13,8 +13,8 @@ that one governs the rationale. Where another spec describes an interaction as
 Implementation: `python/xy/components.py` (`interaction_config`, `Chart`,
 `FacetChart`), `python/xy/_figure.py` (`set_interaction`,
 `_interaction_spec`), `python/xy/channel.py` (kernel-side dispatch),
-`js/src/53_interaction.js` (gestures, modebar, view state machine),
-`js/src/50_chartview.js` (flag resolution, link channel),
+`js/src/53_interaction.ts` (gestures, modebar, view state machine),
+`js/src/50_chartview.ts` (flag resolution, link channel),
 `python/reflex-xy/reflex_xy/` (Reflex event props).
 
 ## 1. How a switch resolves
@@ -51,16 +51,16 @@ the switch is never set. The non-boolean viewport keys — `default_drag_action`
 | `hover` | off | Suppresses the `xy:hover` and `xy:leave` DOM events. The tooltip still renders and the kernel `pick` round-trip still runs; only the event surface is gated. |
 | `click` | off | `_click` returns immediately: no `xy:click` event and no `click` message to the kernel. |
 | `select` | on | Suppresses the `xy:select` event and the `select_clear` message, removes the modebar Selection menu, and (with `brush`) disables shift-drag. |
-| `brush` | on | Same conjunction: `canBrush = brush && select` (`53_interaction.js:115`) gates every selection drag and the modebar Selection menu. |
-| `crosshair` | off | The two guide elements are created only when the flag is true, at init (`53_interaction.js:80`). Not togglable after mount. |
+| `brush` | on | Same conjunction: `canBrush = brush && select` (`53_interaction.ts:115`) gates every selection drag and the modebar Selection menu. |
+| `crosshair` | off | The two guide elements are created only when the flag is true, at init (`53_interaction.ts:80`). Not togglable after mount. |
 | `navigation` | on | Master gate on pointer-drag pan, wheel zoom, box-zoom drags, dblclick reset, and every modebar viewport control. |
 | `pan` | on | Plain-drag pan is ignored, the modebar Pan button is not built, and every zoom-enabled axis is contained (§2.2). Requires `navigation`. Pans `pan_axes` (§2.1). |
 | `zoom` | on | Master zoom gate: wheel zoom, box zoom, and the modebar zoom menu are all ignored. Requires `navigation`. Zooms `zoom_axes` (§2.1). |
-| `wheel_zoom` | on | Cursor-anchored wheel/trackpad zoom is ignored and the page keeps scrolling; box and button zoom are unaffected. Requires `navigation` and `zoom` (`53_interaction.js:271-273`). |
-| `box_zoom` | on | Box-zoom drags and the modebar Box Zoom button are removed, and `default_drag_action="zoom"` has no usable drag tool. Requires `navigation` and `zoom` (`53_interaction.js:112-113`, `50_chartview.js:419`). |
-| `zoom_buttons` | on | The modebar Zoom In (×0.5) / Zoom Out (×2) commands are removed; wheel and box zoom keep working. Requires `navigation` and `zoom` (`53_interaction.js:883`). |
-| `double_click_reset` | on | Double-click no longer resets the view. The modebar Reset View button is unaffected. Requires `navigation` only — reset is independent of `zoom` (`53_interaction.js:283-284`). |
-| `history` | on | Removes the modebar Back/Forward buttons and stops durable-state snapshotting entirely (`57_viewstate.js`). The full history contract is [`../design/view-state.md`](../design/view-state.md) §4: a client-local 64-entry stack of durable-state snapshots, coalesced per gesture by `interaction_id`; linked and history-sourced writes never push; reset pushes (Back undoes a double-click). |
+| `wheel_zoom` | on | Cursor-anchored wheel/trackpad zoom is ignored and the page keeps scrolling; box and button zoom are unaffected. Requires `navigation` and `zoom` (`53_interaction.ts:271-273`). |
+| `box_zoom` | on | Box-zoom drags and the modebar Box Zoom button are removed, and `default_drag_action="zoom"` has no usable drag tool. Requires `navigation` and `zoom` (`53_interaction.ts:112-113`, `50_chartview.ts:419`). |
+| `zoom_buttons` | on | The modebar Zoom In (×0.5) / Zoom Out (×2) commands are removed; wheel and box zoom keep working. Requires `navigation` and `zoom` (`53_interaction.ts:883`). |
+| `double_click_reset` | on | Double-click no longer resets the view. The modebar Reset View button is unaffected. Requires `navigation` only — reset is independent of `zoom` (`53_interaction.ts:283-284`). |
+| `history` | on | Removes the modebar Back/Forward buttons and stops durable-state snapshotting entirely (`57_viewstate.ts`). The full history contract is [`../design/view-state.md`](../design/view-state.md) §4: a client-local 64-entry stack of durable-state snapshots, coalesced per gesture by `interaction_id`; linked and history-sourced writes never push; reset pushes (Back undoes a double-click). |
 | `link_group` | unset | See §4. |
 | `link_axes` | all declared axes | See §4. |
 
@@ -148,12 +148,12 @@ named `xy:<name>`. `view` is `_eventView(source)` —
 `{ranges: {axisId: [lo, hi]}, x0, x1, y0, y1, source}` in data coordinates. The
 per-axis `ranges` map is canonical and covers every declared axis (including
 independent secondary axes such as `y2`); `x0`/`x1`/`y0`/`y1` are compatibility
-aliases for `ranges.x`/`ranges.y` (`50_chartview.js`, `_eventView`).
+aliases for `ranges.x`/`ranges.y` (`50_chartview.ts`, `_eventView`).
 
 | Event | Detail |
 | --- | --- |
 | `xy:hover` | `{row, trace, index, view}` plus the structured payload `{active: true, cursor: {px, data}, points}` (view-state.md §7.1) — genuinely additive; the kernel's exact-value reply re-dispatches with `exact: true` and a refreshed payload. `cursor.px` is chart-root-relative pixels; `cursor.data` is keyed by **exact axis ID** with one entry per declared axis; each `points[]` entry carries `trace` (series name), `index`, `row`, its `x_axis`/`y_axis` bindings, and the series `color`. |
-| `xy:leave` | `{view, active: false}` with `source: "leave"`. Dispatched by canvas pointer exit and by a document-level missed-leave backstop: browsers skip boundary events when the element under a stationary cursor changes (page scroll, hit-test churn), so while a pointer-owned readout is live, a `pointerover` whose target left the chart root runs the same exit path (`53_interaction.js` `_pointerHoverExit`). Keyboard readouts are exempt — they survive mouse movement elsewhere and are dismissed by `Escape`. |
+| `xy:leave` | `{view, active: false}` with `source: "leave"`. Dispatched by canvas pointer exit and by a document-level missed-leave backstop: browsers skip boundary events when the element under a stationary cursor changes (page scroll, hit-test churn), so while a pointer-owned readout is live, a `pointerover` whose target left the chart root runs the same exit path (`53_interaction.ts` `_pointerHoverExit`). Keyboard readouts are exempt — they survive mouse movement elsewhere and are dismissed by `Escape`. |
 | `xy:click` | `{x, y, view, row, trace, index}`; `row`/`trace`/`index` are `null` when the click hit no mark. |
 | `xy:brush` | `{range: {x0, x1, y0, y1}, view}` for box/axis-range drags, or `{polygon: [[x, y], …], view}` for lasso. |
 | `xy:select` | `{total, view}` — the resolved count after the kernel replies, or `total: 0` on clear. |
@@ -190,12 +190,12 @@ They carry no `view`, and no interaction switch gates them:
 
 | Event | Detail |
 | --- | --- |
-| `xy:context_lost` | `{loss_count}` — the canvas lost its WebGL2 context (`50_chartview.js:693`). |
+| `xy:context_lost` | `{loss_count}` — the canvas lost its WebGL2 context (`50_chartview.ts:693`). |
 | `xy:context_restored` | `{loss_count, restore_count}` — a live frame is back (`:775`). |
 | `xy:context_restore_failed` | `{loss_count, message}` — recovery gave up; the root is replaced with an error string (`:761`). |
 
 Those nine are the whole `xy:` surface — every one goes through
-`_dispatchChartEvent` (`50_chartview.js:451`), and there is no other
+`_dispatchChartEvent` (`50_chartview.ts:451`), and there is no other
 `CustomEvent` dispatch in `js/src/`.
 
 Kernel-side callbacks (`python/xy/channel.py`), wired through
@@ -238,7 +238,7 @@ are in [`../design/wire-protocol.md`](../design/wire-protocol.md) §4.
 ## 4. Linking
 
 `link_group` names a `BroadcastChannel` opened as `` `xy:${group}` ``
-(`50_chartview.js:487`). Every view instance mints a random `_linkedSource`
+(`50_chartview.ts:487`). Every view instance mints a random `_linkedSource`
 id and drops messages carrying its own id, so a figure never re-applies its
 own broadcast. Because the transport is `BroadcastChannel`, linking spans
 tabs and windows of the same origin, and is a no-op where the constructor is
@@ -250,7 +250,7 @@ resolved against *declared* axes, so a secondary `y2` links when both peers
 declare it and any absent or non-matching ID is left alone — onto its current
 view, rejects non-finite results, clamps to its own bounds, and applies the
 result with `animate: false`, `source: "linked"`, and `broadcast: false` so the
-update does not echo (`50_chartview.js:591-609`). Outgoing axes are the mirror:
+update does not echo (`50_chartview.ts:591-609`). Outgoing axes are the mirror:
 `actually-changed ∩ link_axes`. Applying a linked view does **not** consult
 local `navigation`/`pan`/`zoom`, so a read-only chart (`navigation=False`) still
 follows its link group — the mechanism behind an overview-plus-linked-detail
@@ -269,13 +269,13 @@ updates the peer's rendering without re-emitting its own events.
 
 ## 5. Gesture map
 
-From `js/src/53_interaction.js`. `shift` is the only modifier key the
+From `js/src/53_interaction.ts`. `shift` is the only modifier key the
 renderer reads anywhere in `js/src/`.
 
 | Gesture | Action | Requires |
 | --- | --- | --- |
 | Plain drag | The resolved drag mode — pan by default (`default_drag_action`, §2.1) | mode-dependent; pan needs `navigation` and `pan` |
-| **Shift**-drag | Box select, overriding the current drag mode (`53_interaction.js:117`) | `brush`, `select`, `_pickable` |
+| **Shift**-drag | Box select, overriding the current drag mode (`53_interaction.ts:117`) | `brush`, `select`, `_pickable` |
 | Drag in `select` / `select-lasso` / `select-x` / `select-y` mode | That selection shape | `brush`, `select`, `_pickable` |
 | Drag in `zoom` mode | Box zoom, fitting `zoom_axes` on release | `navigation`, `zoom`, and `box_zoom` |
 | Wheel | Cursor-anchored zoom of `zoom_axes`, factor `1.0015 ** deltaY`; `preventDefault` | `navigation`, `zoom`, and `wheel_zoom` |
@@ -300,7 +300,7 @@ needs no modifier keys, and a band gesture is an ordinary interaction with a
 one-axis `axes` list — history and events see nothing new.
 
 **Zoom limits.** Every factor zoom — wheel, modebar Zoom In/Out — goes
-through `_zoomAxisRange` (`53_interaction.js:1661`) and stops at two
+through `_zoomAxisRange` (`53_interaction.ts:1661`) and stops at two
 boundaries:
 
 - *Zooming in* stops at the dossier §16 precision floor: if either axis's
@@ -348,7 +348,7 @@ is written straight into each panel's interaction dict.
 
 The hover tooltip is anchored in data space, not at the cursor
 (matplotlib's data-coordinate-annotation contract;
-`js/src/52_tooltip.js`, `_setTooltipAnchor` / `_repositionTooltip`):
+`js/src/52_tooltip.ts`, `_setTooltipAnchor` / `_repositionTooltip`):
 
 - At pick time the hovered point's data coordinates are recorded against the
   trace's own axis pair. Category rows carry labels rather than numbers, so
diff --git a/spec/api/styling.md b/spec/api/styling.md
index d8a83729..6e9faa55 100644
--- a/spec/api/styling.md
+++ b/spec/api/styling.md
@@ -171,13 +171,13 @@ but they fail differently, and only the numeric grammar falls back.
   with a trailing `%`, which multiplies the value by 100 and appends the sign —
   for example `.2f`, `,.0f`, `.1%`. The trailing `f` is optional. Any other
   string **falls back**: `fmtNumberSpec` returns `null`
-  (`js/src/30_ticks.js:168`) and `fmtAxis` takes its `|| fmtLinear(...)` branch
+  (`js/src/30_ticks.ts:168`) and `fmtAxis` takes its `|| fmtLinear(...)` branch
   (`:209`), so the axis silently reverts to the automatic formatter. On a log
   axis, a value in `(0, 1)` that the spec would render as `"0"` falls back the
   same way.
 - **Time axes** accept a strftime subset of exactly `%Y %m %d %H %M %S %b %B`.
   All fields are **UTC**; `%b`/`%B` are English month names. A time spec
-  **never** falls back: `fmtTimeSpec` (`js/src/30_ticks.js:180-200`)
+  **never** falls back: `fmtTimeSpec` (`js/src/30_ticks.ts:180-200`)
   substitutes the tokens it knows and copies every other character through
   verbatim, so it always returns a string and the `|| fmtTime(...)` branch at
   `:204` is unreachable. An unrecognized `%` token such as `%y` therefore
diff --git a/spec/design-dossier.md b/spec/design-dossier.md
index 7c03ca5f..9df9427e 100644
--- a/spec/design-dossier.md
+++ b/spec/design-dossier.md
@@ -258,7 +258,7 @@ deck.gl in production):
 `DRILL_EXIT_FACTOR = 1.15` (`python/xy/config.py`) so a trace that has drilled down to
 real points stays drilled until the count clearly exceeds the budget again. The client
 mirrors the same rule (`LOD_DIRECT_POINT_BUDGET`, `LOD_DRILL_EXIT_FACTOR` in
-`js/src/45_lod.js`). Mark pixel area and overdraw do **not** enter the decision.
+`js/src/45_lod.ts`). Mark pixel area and overdraw do **not** enter the decision.
 
 *Pending (F3, not implemented):* folding `mark_pixel_area × estimated_overdraw` into the
 tier decision, so a dense large-marker scatter trips Tier 2 aggregation at sub-ceiling
@@ -272,7 +272,7 @@ budget is channel-dependent: `Trace.use_density()` (`python/xy/_trace.py`) picks
 channel, and `SCATTER_DENSITY_THRESHOLD = 200_000` otherwise (both in
 `python/xy/config.py`). A plain scatter therefore aggregates at 200k — its whole win is
 not drawing 10M dots — while a scatter whose per-point color/size aggregation would
-destroy stays direct up to 2M. `js/src/45_lod.js` carries the matching 200k client
+destroy stays direct up to 2M. `js/src/45_lod.ts` carries the matching 200k client
 budget.
 
 **Tier 1 — Decimated lines (LTTB / min-max per pixel column):** for line/area traces
@@ -364,12 +364,12 @@ re-exports several of them as a historic import path and is not listed for those
 | --- | --- | --- | --- |
 | `PROTOCOL_VERSION` | `3` | Wire-spec version stamped on every payload; the client refuses a mismatch loudly (§33). | `_payload.py` |
 | `DECIMATION_THRESHOLD` | `10_000` | Line/area traces with more points than this ship M4-decimated (Tier 1); at or below, raw columns go over the wire. Also gates re-decimation on the interaction path. | `_payload.py`, `interaction.py` |
-| `SCATTER_DENSITY_THRESHOLD` | `200_000` | Tier-0 → Tier-2 count budget for a scatter with **no** per-point channel (`Trace.use_density()`), and the visible-count budget for view-LOD planning and drill decisions. | `_trace.py`, `interaction.py`; mirrored client-side as `LOD_DIRECT_POINT_BUDGET` in `js/src/45_lod.js` |
+| `SCATTER_DENSITY_THRESHOLD` | `200_000` | Tier-0 → Tier-2 count budget for a scatter with **no** per-point channel (`Trace.use_density()`), and the visible-count budget for view-LOD planning and drill decisions. | `_trace.py`, `interaction.py`; mirrored client-side as `LOD_DIRECT_POINT_BUDGET` in `js/src/45_lod.ts` |
 | `DIRECT_SOFT_CEILING` | `2_000_000` | Tier-0 → Tier-2 count budget for a scatter that **does** carry a per-point color or size channel; above it density is forced and the channels are warned about, never silently dropped (§5 F5). | `_trace.py`, `marks.py` |
 | `DENSITY_GRID` | `(512, 384)` | Default density-grid cell dimensions for the initial spec, before the client requests a viewport-matched size via `density_view`. | `_payload.py` |
 | `MAX_SCREEN_DIM` | `4096` | Upper clamp on any browser-supplied pixel dimension, so untrusted widget/comm input cannot inflate decimation buckets or density grids. | `lod.py`, `_native.py` |
 | `MAX_CONTOUR_WORK` | `4_000_000` | Ceiling on contour `cells × levels`; a request over it raises instead of allocating an unbounded segment buffer. | `marks.py`, `_native.py` |
-| `DRILL_EXIT_FACTOR` | `1.15` | Hysteresis multiplier on the drill boundary: a trace already drilled to real points stays drilled until the visible count exceeds `budget × 1.15`. | `lod.py` (`drill_decision`, `plan_view_lod`), `interaction.py`; mirrored as `LOD_DRILL_EXIT_FACTOR` in `js/src/45_lod.js` |
+| `DRILL_EXIT_FACTOR` | `1.15` | Hysteresis multiplier on the drill boundary: a trace already drilled to real points stays drilled until the visible count exceeds `budget × 1.15`. | `lod.py` (`drill_decision`, `plan_view_lod`), `interaction.py`; mirrored as `LOD_DRILL_EXIT_FACTOR` in `js/src/45_lod.ts` |
 | `DENSITY_TARGET_POINTS_PER_CELL` | `16.0` | Target points per cell when sizing an aggregation grid, so a barely-over-budget view does not get a one-point-per-pixel grid that looks like static and re-ships large. | `lod.py` |
 | `DENSITY_SAMPLE_TARGET` | `8_192` | Size of the deterministic real-point sample shipped over an aggregated scatter's density texture (hybrid overlay). | `_payload.py`, `interaction.py` |
 | `DENSITY_SAMPLE_SEED` | `0` | Seed for that sample; a fixed seed makes the overlay identical across re-ships of the same view. | `_payload.py`, `interaction.py` |
@@ -444,7 +444,7 @@ F3, still pending (above).
   neither SharedArrayBuffer nor cross-origin isolation (COOP/COEP) is required —
   which is what lets the client run in Jupyter, embedded iframes, and third-party
   contexts that cannot set those headers.
-- One Web Worker exists client-side, and it is not the core: `js/src/46_worker.js`
+- One Web Worker exists client-side, and it is not the core: `js/src/46_worker.ts`
   re-bins the retained density sample for kernel-less standalone exports (`to_html`),
   off the main thread, booted from a Blob URL. Environments without workers fall back
   to the stretched overview texture.
@@ -610,8 +610,8 @@ detail inside a decade of millisecond timestamps).
   geometry is quantized to sub-pixel f32.
 - **Linear axes stay offset-encoded through the vertex transform.** The shader's
   affine view mapping is composed directly onto the encoded values (`xyMap`,
-  `js/src/40_gl.js`); the CPU folds the offset into the affine constants in f64
-  (`_map`, `js/src/50_chartview.js`). Decoding to absolute coordinates in-shader
+  `js/src/40_gl.ts`); the CPU folds the offset into the affine constants in f64
+  (`_map`, `js/src/50_chartview.ts`). Decoding to absolute coordinates in-shader
   first would discard the low bits whenever a deeply zoomed window is far smaller
   than the offset — after which zooming back out could never recover the point
   spread. Only log axes decode before mapping, because log10 is not affine.
@@ -648,7 +648,7 @@ WebGL contexts per page (~16 in Chrome) and LRU-evict the oldest on overflow, wh
 permanently blanks the earliest charts of a big dashboard.
 
 **Shipped: one context per chart, governed.** `XY_CONTEXT_GOVERNOR`
-(`js/src/50_chartview.js`) keeps the page inside a budget — default **12**, overridable
+(`js/src/50_chartview.ts`) keeps the page inside a budget — default **12**, overridable
 via `window.XY_CONTEXT_BUDGET` — leaving headroom under Chrome's cap for host-page GL.
 When a view is about to acquire a context at budget, the least-recently-visible
 *off-screen* view releases its own via `WEBGL_lose_context` and re-acquires when
@@ -797,11 +797,13 @@ Where it must run, and what each environment denies us:
 | Old browsers / no WebGL2 | GPU entirely | same pure-JS + 2D-canvas fallback, capped; loudly reported via the §5 no-silent-caps rule |
 | Server / CI (native) | no display | headless native path (§8) |
 
-**Bundle size.** The shipped client is a single JS bundle — `python/xy/static/index.js`,
-309 KB uncompressed / ~74 KB gzipped — with no WASM payload and no lazily-loaded trace
+**Bundle size.** The shipped client is a single minified JS bundle —
+`python/xy/static/index.js`, ~277 KB minified / ~76 KB gzipped (vite/oxc; built from
+the TypeScript sources in `js/src`) — with no WASM payload and no lazily-loaded trace
 modules. The one size gate CI enforces is on the **wheel**: `.github/workflows/ci.yml`
 asserts the built wheel is ≤ 15 MB (§33). CI also verifies the committed JS bundles are
-*fresh* (`node js/build.mjs` reproduces them), but it does not measure their bytes.
+*fresh* (`node js/build.mjs` reproduces them byte-for-byte), but it does not measure
+their bytes.
 
 *Pending:* a gzipped-size budget on the client bundle, failing the build exactly like a
 perf regression (§12), plus per-trace-family lazy feature modules (Plotly's
@@ -1139,7 +1141,7 @@ the chart match my site" actually means — typography and chrome.
 }
 ```
 
-Mechanism: `readTheme()` (`js/src/20_theme.js`) resolves the canvas tokens at mount and
+Mechanism: `readTheme()` (`js/src/20_theme.ts`) resolves the canvas tokens at mount and
 writes them to renderer state — clear color, grid and axis uniforms, label color. Chrome
 tokens are consumed directly by the stylesheet (`XY_CHROME_CSS`, zero-specificity
 `:where()` rules) rather than through the renderer. One implementation reality (audit
@@ -1180,7 +1182,7 @@ author expects.
   CSS bridge is the web-author's path to the same renderer state, not a separate system.
 - **Export parity — partially closed; the kernel path is still an open gap.** Two export
   routes exist. *Client-side* (modebar download) is themed correctly: `_exportSvgMarkup()`
-  (`js/src/53_interaction.js`) inlines the resolved `--chart-*` tokens and inherited text
+  (`js/src/53_interaction.ts`) inlines the resolved `--chart-*` tokens and inherited text
   styles onto the detached clone before serializing, so the downloaded SVG/PNG matches
   the screen. *Kernel-side* export (`to_svg` / `to_png` / `write_image`, rendered by
   `python/xy/_svg.py` and `python/xy/_raster.py`) has no CSS: it uses only the
diff --git a/spec/design/chart-grammar.md b/spec/design/chart-grammar.md
index e5b4f38a..8ee42c7c 100644
--- a/spec/design/chart-grammar.md
+++ b/spec/design/chart-grammar.md
@@ -181,7 +181,7 @@ panes is layout the Figure grid owns.
 plus two cross-chart linking props. Every switch defaults to `None`, meaning
 "unset"; the renderer resolves an unset switch through
 `ChartView._interactionFlag(name, fallback)`
-(`js/src/50_chartview.js:436`), which treats only the literal `true` as on:
+(`js/src/50_chartview.ts:436`), which treats only the literal `true` as on:
 
 | Switch | Default when unset | Effect |
 | --- | --- | --- |
@@ -201,7 +201,7 @@ the source toggles `wheel_zoom`/`box_zoom`/`zoom_buttons`/`double_click_reset`;
 [pan-and-zoom-configuration.md](pan-and-zoom-configuration.md) on their design.
 
 `navigation` is checked before `pan` and `zoom` at each gesture site
-(`js/src/53_interaction.js:112`, `:240`, `:251`), so it disables pointer
+(`js/src/53_interaction.ts:112`, `:240`, `:251`), so it disables pointer
 navigation wholesale while leaving `pan`/`zoom` as the finer-grained
 switches.
 
@@ -222,7 +222,7 @@ skips the per-viewport server round-trip entirely.
 
 **Cross-chart linking.** `link_group` is an opaque identifier; charts sharing
 one join the `BroadcastChannel` named `` `xy:${group}` ``
-(`js/src/50_chartview.js:487`). `link_axes` defaults to every declared axis and
+(`js/src/50_chartview.ts:487`). `link_axes` defaults to every declared axis and
 is filtered to declared axis IDs at runtime; only those dimensions of the
 broadcast view are copied onto the receiving chart. Semantics that matter:
 
@@ -237,7 +237,7 @@ broadcast view are copied onto the receiving chart. Semantics that matter:
   even when no `on_view_change` listener is attached — it broadcasts locally
   without sending to the server.
 - Selections propagate only under the separate `link_select` wire flag
-  (range, polygon, or clear — `js/src/50_chartview.js:491`), applied without
+  (range, polygon, or clear — `js/src/50_chartview.ts:491`), applied without
   re-dispatching events so linked charts do not feed back. `link_select` is
   public through `Figure.set_interaction(link_select=…)` (`_figure.py:257`,
   applied at `:270`) and through `facet_chart(link_select=True)`
diff --git a/spec/design/lod-architecture.md b/spec/design/lod-architecture.md
index 1b75be18..9691c1a1 100644
--- a/spec/design/lod-architecture.md
+++ b/spec/design/lod-architecture.md
@@ -2,7 +2,7 @@
 
 **Status:** design + implementation plan. Supersedes nothing — this refines
 dossier §5/§10/§16/§17/§22/§28 into a buildable spec, grounded in what already
-ships (`python/xy/lod.py`, `js/src/45_lod.js`, `interaction.py`,
+ships (`python/xy/lod.py`, `js/src/45_lod.ts`, `interaction.py`,
 kernels ABI v3). The whole XY claim rests on one sentence:
 
 > **Large data stays truthful and interactive.**
@@ -18,7 +18,7 @@ Interactive means: pan/zoom stays inside the §17 frame budget at any N.
 A **tier is a property of a (trace, viewport) pair**, never of a dataset:
 what ships is count-only, `tier = f(visible_count)`, hysteresis-guarded (§5).
 `drill_decision(visible, budget, in_drill, exit_factor)` in `python/xy/lod.py`
-returns `visible <= budget * (exit_factor if in_drill else 1.0)`; `js/src/45_lod.js`
+returns `visible <= budget * (exit_factor if in_drill else 1.0)`; `js/src/45_lod.ts`
 mirrors it. Implemented today for scatter (drill-in/out with hysteresis); this
 doc extends the same rule to every kind. Folding `mark_pixel_area × overdraw`
 into the decision is dossier F3 — *specified, pending, not implemented*; no
@@ -185,7 +185,7 @@ reply  = compose(tiles) → one grid ≤ (screen px) — done kernel-side today,
 ```
 
 - **Pan = tile reuse:** only newly exposed edge tiles ship. The client keeps
-  the multi-window density cache it already has (`densityCache` in 45_lod.js)
+  the multi-window density cache it already has (`densityCache` in 45_lod.ts)
   — the pyramid formalizes it into keyed tiles instead of ad-hoc windows.
 - **Zoom = adjacent level:** crossfade between level textures is the exact
   crossfade the client already does for density switches (`_densitySwitchPrev`).
@@ -291,7 +291,7 @@ contract entry before it lands.
    and near-drill windows fall through to the exact `range_indices` +
    `bin_2d` path. Level is recorded per update as `binning: "pyramid-L<l>"`.
 8. Client: tile-keyed cache replaces window-keyed `densityCache` (same
-   eviction, same crossfades). Still pending — `js/src/45_lod.js` keys the
+   eviction, same crossfades). Still pending — `js/src/45_lod.ts` keys the
    cache by density window, and no client code reads the served level.
 9. Bench gate: 100M pan p95 < 16ms kernel time, zoom step < 50ms, memory
    within 1.5× finest level.
diff --git a/spec/design/reflex-integration.md b/spec/design/reflex-integration.md
index 078c2d14..95211424 100644
--- a/spec/design/reflex-integration.md
+++ b/spec/design/reflex-integration.md
@@ -324,7 +324,7 @@ absorbs newer publishes and always ships the latest payload.
   payload's: it is what lets an `on_view_change`-computed detail chart track its
   source both ways — when the linked overview zooms *out*, the recomputed
   detail's count axis grows and the view expands with it instead of clamping to
-  the previous, smaller home (`ChartView.updatePayload`, `js/src/56_animation.js`).
+  the previous, smaller home (`ChartView.updatePayload`, `js/src/56_animation.ts`).
 - **Streaming**: `reflex_xy.append(token, x=..., y=...)` from any handler,
   background task, or thread → `Figure.append` under the figure lock (worker
   thread) → the same `append` message the notebook widget ships, pushed
diff --git a/spec/design/renderer-architecture.md b/spec/design/renderer-architecture.md
index 695ee44c..ce92e9b1 100644
--- a/spec/design/renderer-architecture.md
+++ b/spec/design/renderer-architecture.md
@@ -4,13 +4,15 @@
 should converge to as chart kinds multiply. Findings below are verified
 against the source, not hypothetical.
 
-**Scope.** The client builds from 15 parts, concatenated in filename order into
-one bundle by `js/build.mjs`. The audit findings in §2 cover the render path —
-`40_gl.js`, `45_lod.js`, `50_chartview.js`, `55_marks.js`, `60_entries.js`.
+**Scope.** The client builds from TypeScript ES modules under `js/src` (one
+module per former concat part; explicit imports replaced filename-order
+concatenation), bundled and minified by vite via `js/build.mjs`. The audit
+findings in §2 cover the render path —
+`40_gl.ts`, `45_lod.ts`, `50_chartview.ts`, `55_marks.ts`, `60_entries.ts`.
 The module inventory below covers all 15. Ticks and axis label formatting
-(`30_ticks.js`) are specified in §6; the gesture contract in `53_interaction.js`
+(`30_ticks.ts`) are specified in §6; the gesture contract in `53_interaction.ts`
 is specified in [interaction.md](../api/interaction.md) §5, and the client half of
-the kernel channel (`54_kernel.js`) in [wire-protocol.md](wire-protocol.md).
+the kernel channel (`54_kernel.ts`) in [wire-protocol.md](wire-protocol.md).
 What remains normatively unspecified is the ARIA/DOM accessibility contract —
 see R11.
 
@@ -21,28 +23,28 @@ relative mass, not as a budget (see §3 on why a line count failed as a metric).
 
 | Module | Lines | Responsibility |
 | --- | ---: | --- |
-| `00_header.js` | 172 | Bundle preamble: the client-wide design comment, the `PROTOCOL` version constant, and the binary frame codec (`XY_FRAME_MAGIC` `"XYBF"`, `decodeFrame`, 8-byte alignment). Every inbound frame is validated here — magic/version, u64 fields, zero-padding, and per-field size limits — before any other module sees it. |
-| `10_colormaps.js` | 51 | The `COLORMAP_STOPS` table (§36 CVD-safe defaults) as compact RGB stop lists, and `buildLutData`, which linearly interpolates a stop list into the 256-texel RGBA LUT uploaded once per colormap as a texture. |
-| `20_theme.js` | 163 | Resolves chrome and mark colors: arbitrary CSS color expressions and `--chart-*` custom properties are resolved against a live probe element into f32 RGBA for GL, with a fallback on unparseable input. Also owns `XY_CHROME_CSS` and its one-time stylesheet injection. |
-| `30_ticks.js` | 224 | CPU-side tick generation in f64 for linear, log, category and time axes, plus every axis/colorbar label formatter (automatic and `format=`-driven). Specified in §6. |
-| `40_gl.js` | 829 | WebGL2 primitives: shader compile/link, `makeProgram` with its per-program uniform-location memo (R1), the fixed `ATTR_SLOTS` attribute-slot table bound at link time, and the shader inventory itself. The only module that is GPU-API-specific by design (§4). |
-| `45_lod.js` | 567 | View-dependent level-of-detail orchestration, deliberately chart-agnostic: tier selection, drill enter/exit hysteresis (`LOD_DRILL_EXIT_FACTOR`), cross-tier fades, and the retained tier caches. Calls back into `view._draw*` rather than drawing itself, which is the seam tests intercept. |
-| `46_worker.js` | 59 | The standalone density re-bin worker: a worker source string carried inside the bundle and booted from a Blob URL. Re-bins the retained sample off the main thread so kernel-less (`to_html`) density charts refine on zoom instead of stretching the overview texture; absence of workers falls back to stretching. |
-| `50_chartview.js` | 4175 | The `ChartView` class: the four drawing surfaces, scale/view state, chrome (background, grid, axes, legend, colorbar), GL buffer and VAO management (R2), and pick orchestration. Modules 51–54 extend this same class. |
-| `51_annotations.js` | 591 | The 2D overlay canvas above the marks canvas: annotation markers, arrows, shape fills, and collision-nudged labels. Separates canvas shape style keys from label CSS so annotation styling never leaks into the DOM label. |
-| `52_tooltip.js` | 321 | Hit → source row → tooltip DOM. Anchors the tooltip at the picked point's data coordinates and reprojects it every draw ([interaction.md](../api/interaction.md) §7). Renders the local f32-decoded row immediately, then replaces it with the kernel's exact f64 row when that reply arrives (sequence- and `drill_seq`-guarded); composes text nodes, never HTML. |
-| `53_interaction.js` | 1820 | The entire user-facing interaction surface: pointer/drag/wheel wiring, crosshair, box select, box zoom, lasso, the modebar and its export menu, and the animated pan/zoom view state machine. The gesture→action mapping, the modebar tool inventory and the `interaction_config` switches are specified in [interaction.md](../api/interaction.md) §2 and §5. |
-| `54_kernel.js` | 437 | The client half of the kernel channel: debounced density/decimated view-requests, streaming `append` handling, the inbound message dispatcher, and the deep-zoom drill lifecycle (§16). Degrades to `46_worker.js` when there is no comm. The message catalog it consumes is specified in [wire-protocol.md](wire-protocol.md). |
-| `55_marks.js` | 220 | The `MARK_KINDS` registry — `build`/`draw` per kind plus the `pointPick`/`retainCpu`/`refreshColor` capability flags — mirroring the kernel's `_emit_<kind>` dispatch so adding a 2D chart is an entry here, not a branch in `ChartView`. |
-| `56_animation.js` | — | Declarative entrance/update/exit state machine, easing/spring evaluation, bounded identity matching, full-payload replacement, interruption, reduced-motion resolution, and lifecycle events. Its normative behavior is in [animation.md](animation.md). |
-| `60_entries.js` | 76 | Mount/unmount entry points for both hosts (`render` for anywidget, `renderStandalone` for exported HTML) and `payloadBuffers`, which materializes first-paint columns in whichever layout the spec declares. Keeps aligned views zero-copy; a spec/transport disagreement throws. |
+| `00_header.ts` | 172 | Bundle preamble: the client-wide design comment, the `PROTOCOL` version constant, and the binary frame codec (`XY_FRAME_MAGIC` `"XYBF"`, `decodeFrame`, 8-byte alignment). Every inbound frame is validated here — magic/version, u64 fields, zero-padding, and per-field size limits — before any other module sees it. |
+| `10_colormaps.ts` | 51 | The `COLORMAP_STOPS` table (§36 CVD-safe defaults) as compact RGB stop lists, and `buildLutData`, which linearly interpolates a stop list into the 256-texel RGBA LUT uploaded once per colormap as a texture. |
+| `20_theme.ts` | 163 | Resolves chrome and mark colors: arbitrary CSS color expressions and `--chart-*` custom properties are resolved against a live probe element into f32 RGBA for GL, with a fallback on unparseable input. Also owns `XY_CHROME_CSS` and its one-time stylesheet injection. |
+| `30_ticks.ts` | 224 | CPU-side tick generation in f64 for linear, log, category and time axes, plus every axis/colorbar label formatter (automatic and `format=`-driven). Specified in §6. |
+| `40_gl.ts` | 829 | WebGL2 primitives: shader compile/link, `makeProgram` with its per-program uniform-location memo (R1), the fixed `ATTR_SLOTS` attribute-slot table bound at link time, and the shader inventory itself. The only module that is GPU-API-specific by design (§4). |
+| `45_lod.ts` | 567 | View-dependent level-of-detail orchestration, deliberately chart-agnostic: tier selection, drill enter/exit hysteresis (`LOD_DRILL_EXIT_FACTOR`), cross-tier fades, and the retained tier caches. Calls back into `view._draw*` rather than drawing itself, which is the seam tests intercept. |
+| `46_worker.ts` | 59 | The standalone density re-bin worker: a worker source string carried inside the bundle and booted from a Blob URL. Re-bins the retained sample off the main thread so kernel-less (`to_html`) density charts refine on zoom instead of stretching the overview texture; absence of workers falls back to stretching. |
+| `50_chartview.ts` | 4175 | The `ChartView` class: the four drawing surfaces, scale/view state, chrome (background, grid, axes, legend, colorbar), GL buffer and VAO management (R2), and pick orchestration. Modules 51–54 extend this same class. |
+| `51_annotations.ts` | 591 | The 2D overlay canvas above the marks canvas: annotation markers, arrows, shape fills, and collision-nudged labels. Separates canvas shape style keys from label CSS so annotation styling never leaks into the DOM label. |
+| `52_tooltip.ts` | 321 | Hit → source row → tooltip DOM. Anchors the tooltip at the picked point's data coordinates and reprojects it every draw ([interaction.md](../api/interaction.md) §7). Renders the local f32-decoded row immediately, then replaces it with the kernel's exact f64 row when that reply arrives (sequence- and `drill_seq`-guarded); composes text nodes, never HTML. |
+| `53_interaction.ts` | 1820 | The entire user-facing interaction surface: pointer/drag/wheel wiring, crosshair, box select, box zoom, lasso, the modebar and its export menu, and the animated pan/zoom view state machine. The gesture→action mapping, the modebar tool inventory and the `interaction_config` switches are specified in [interaction.md](../api/interaction.md) §2 and §5. |
+| `54_kernel.ts` | 437 | The client half of the kernel channel: debounced density/decimated view-requests, streaming `append` handling, the inbound message dispatcher, and the deep-zoom drill lifecycle (§16). Degrades to `46_worker.ts` when there is no comm. The message catalog it consumes is specified in [wire-protocol.md](wire-protocol.md). |
+| `55_marks.ts` | 220 | The `MARK_KINDS` registry — `build`/`draw` per kind plus the `pointPick`/`retainCpu`/`refreshColor` capability flags — mirroring the kernel's `_emit_<kind>` dispatch so adding a 2D chart is an entry here, not a branch in `ChartView`. |
+| `56_animation.ts` | — | Declarative entrance/update/exit state machine, easing/spring evaluation, bounded identity matching, full-payload replacement, interruption, reduced-motion resolution, and lifecycle events. Its normative behavior is in [animation.md](animation.md). |
+| `60_entries.ts` | 76 | Mount/unmount entry points for both hosts (`render` for anywidget, `renderStandalone` for exported HTML) and `payloadBuffers`, which materializes first-paint columns in whichever layout the spec declares. Keeps aligned views zero-copy; a spec/transport disagreement throws. |
 
 ## 1. What's structurally right (keep)
 
 - **Mark registry** (`MARK_KINDS` + capabilities `pointPick/retainCpu/
   refreshColor` + `markOf` fallback): the render loop is kind-blind; new
   kinds are entries. This is the load-bearing decision — preserve it.
-- **LOD module** (`45_lod.js`): tier orchestration/fades/caches are outside
+- **LOD module** (`45_lod.ts`): tier orchestration/fades/caches are outside
   ChartView and call back through `view._draw*`, so tests intercept the
   renderer and future kinds can swap mark drawing. Keep the callback seam.
 - **Four-surface layering**, bottom to top: 2D chrome canvas (background,
@@ -73,8 +75,8 @@ relative mass, not as a budget (see §3 on why a line count failed as a metric).
   (`build_payload_split` in `python/xy/widget.py` and
   `python/reflex-xy/reflex_xy/namespace.py`); packed remains for standalone
   export and for streaming `append`, which always re-ships packed
-  (`python/xy/interaction.py`). `payloadBuffers` (`60_entries.js`) and
-  `_columnView` (`50_chartview.js`) treat any spec/transport disagreement as a
+  (`python/xy/interaction.py`). `payloadBuffers` (`60_entries.ts`) and
+  `_columnView` (`50_chartview.ts`) treat any spec/transport disagreement as a
   thrown error — fail loud, never a silent fallback.
 - **DPR correctness**: backing stores sized `css × devicePixelRatio`
   everywhere including the pick FBO and its lazy resize-realloc; line widths
@@ -101,8 +103,8 @@ Ordered by how much each compounds as kinds multiply.
   `getParameter(MAX_VERTEX_ATTRIBS)` driver round-trip. `_deleteVaos` frees
   them on teardown; the grid quad holds its own VAO. Landed ahead of the R9
   rect-pick trigger it was originally sequenced behind. Note the VAO
-  utilities live in `50_chartview.js`, next to the GL context they mutate,
-  not in `40_gl.js` as §3 originally projected.
+  utilities live in `50_chartview.ts`, next to the GL context they mutate,
+  not in `40_gl.ts` as §3 originally projected.
 - **R3 — Draw-state discipline.** Re-audit: the discipline is currently
   sound — BLEND is enabled once at init and toggled in exactly one place
   (the pick pass, correctly paired), and every texture bind sets its unit
@@ -134,7 +136,7 @@ Ordered by how much each compounds as kinds multiply.
   is duplicated across `RECT_VS` and `BAR_VS`, not once per kind. The
   duplication the finding predicted is therefore real but small, and
   `GLSL_COMMON` does not exist yet. *Fix, still pending:* extract shared VS
-  chunks (corner tables, px↔clip helpers) via string includes in `40_gl.js`
+  chunks (corner tables, px↔clip helpers) via string includes in `40_gl.ts`
   (`GLSL_COMMON`), not a shader framework. Deliberately stop there — a
   "shader graph" is over-engineering at this scale. The original "fine at 5
   kinds" deferral rationale has expired; the trigger is now a third
@@ -171,9 +173,9 @@ Ordered by how much each compounds as kinds multiply.
   contract (`{x, y?, ohlc?, color_*?}` + `_dist` for non-point hover) so new
   kinds emit compatible rows — doc task, no code.
 - **R11 — Client parts are unspecified.** *Mostly closed.* Every module now
-  has a one-paragraph contract in the inventory above; `30_ticks.js` has a
+  has a one-paragraph contract in the inventory above; `30_ticks.ts` has a
   full specification in §6; and the two largest remaining gaps have since been
-  written down. `53_interaction.js` is the second-largest module in the bundle
+  written down. `53_interaction.ts` is the second-largest module in the bundle
   and defines the entire user-facing gesture and chrome-interaction contract —
   drag pan, wheel zoom, box select and box zoom, lasso, double-click reset,
   the modebar and its export menu, tooltip show/hide, and keyboard point
@@ -182,20 +184,20 @@ Ordered by how much each compounds as kinds multiply.
   renderer reads anywhere in `js/src/`) with the per-gesture required
   switches, §5 also carries the modebar tool inventory, §2 is the
   `interaction_config` switch table with defaults, §3 the event payloads, and
-  §7 the unconditional behaviors. `54_kernel.js` (the client half of the
+  §7 the unconditional behaviors. `54_kernel.ts` (the client half of the
   channel protocol) is specified in [wire-protocol.md](wire-protocol.md), as
-  are `00_header.js`'s `PROTOCOL` constant and XYBF envelope (§7 there);
-  `20_theme.js`'s token resolution is specified in [export.md](../api/export.md)
-  §6, and `46_worker.js`'s standalone re-bin role in design-dossier.md §8.
-  Only `51_annotations.js`, `52_tooltip.js` and `10_colormaps.js` still have
+  are `00_header.ts`'s `PROTOCOL` constant and XYBF envelope (§7 there);
+  `20_theme.ts`'s token resolution is specified in [export.md](../api/export.md)
+  §6, and `46_worker.ts`'s standalone re-bin role in design-dossier.md §8.
+  Only `51_annotations.ts`, `52_tooltip.ts` and `10_colormaps.ts` still have
   no spec reference beyond the inventory above. **Remaining doc task:** the
   ARIA/DOM accessibility contract. interaction.md states *that* keyboard
   traversal and a live-region readout exist and are unconditional. What no
   document states *normatively* is the DOM that implements them: the
   `role="region"` root with its `aria-label`/`aria-describedby` summary, the
   `role="status"` `aria-live="polite"` readout, the `role="img"` focusable
-  canvas (`50_chartview.js:1110-1147`, `:1212`), and the modebar's
-  toolbar/menu roles and roving `tabIndex` (`53_interaction.js:718-1000`).
+  canvas (`50_chartview.ts:1110-1147`, `:1212`), and the modebar's
+  toolbar/menu roles and roving `tabIndex` (`53_interaction.ts:718-1000`).
   Those citations are accurate but descriptive — dossier §20 sketches the
   intent, production-readiness.md tracks the status, and this paragraph
   inventories the attributes. None of the three binds an implementer, so a
@@ -228,8 +230,8 @@ Ordered by how much each compounds as kinds multiply.
 so `this.*` is unchanged across the split — the file boundary is an editing
 seam, not a module boundary. Two projections in the original table did not
 hold: interaction is no longer a `50_chartview` responsibility, and the VAO
-utilities landed in `50_chartview.js` (with the GL context) rather than in
-`40_gl.js`. `GLSL_COMMON` (R6) is still unwritten.
+utilities landed in `50_chartview.ts` (with the GL context) rather than in
+`40_gl.ts`. `GLSL_COMMON` (R6) is still unwritten.
 
 ChartView's steady-state responsibilities: own the GL context + view rect +
 event wiring + chrome; delegate everything mark-shaped to the registry and
@@ -237,7 +239,7 @@ everything tier-shaped to lod. It should *lose* lines as kinds are added, not
 gain them.
 
 **The line-count form of that metric has failed and is retired.**
-`50_chartview.js` was 1707 lines when this document was written and is 4167
+`50_chartview.ts` was 1707 lines when this document was written and is 4167
 today — 2.4× the original figure — and that is *after* the annotations,
 tooltip, interaction and kernel extractions moved a further 3062 lines into
 51–54. The whole file is one `class ChartView`, so there is no small-class
@@ -246,9 +248,9 @@ refreshed, which is exactly how a raw line count fails as a metric.
 
 Replacement metric, which does not go stale on every edit: **no per-kind
 branches in `ChartView`.** Any `if (kind === …)` or kind-name switch outside
-`55_marks.js` is the regression to catch; growth in shared machinery
+`55_marks.ts` is the regression to catch; growth in shared machinery
 (buffers, VAOs, pick, chrome) is expected and fine. Track the count of
-kind-name literals in `50_chartview.js`, not its length.
+kind-name literals in `50_chartview.ts`, not its length.
 
 ## 4. WebGPU migration path
 
@@ -258,7 +260,7 @@ Tier-2 compute (atomic-add binning in a compute shader, dossier §5) and
 storage-buffer picking. The architecture above is deliberately the portable
 subset:
 
-1. Everything GPU-API-specific already lives in `40_gl.js` + the `_draw*`/
+1. Everything GPU-API-specific already lives in `40_gl.ts` + the `_draw*`/
    `_upload*` methods; marks talk to buffers/uniform-maps, not raw GL, once
    R1-R3 land. That interface (`createProgram/uploadBuffer/draw(markState)`)
    is implementable on WebGPU nearly 1:1 (uniform maps → bind groups,
@@ -287,11 +289,11 @@ subset:
 6. R11 interaction/module contracts — done (interaction.md, wire-protocol.md);
    the ARIA/DOM accessibility contract is the residue, doc-only, no trigger.
 
-## 6. Axis ticks and label formatting (`30_ticks.js`)
+## 6. Axis ticks and label formatting (`30_ticks.ts`)
 
 Ticks are computed on the CPU in f64 and never round-trip through the f32
 render path (§16). `ChartView._ticksFor` dispatches on the axis
-(`50_chartview.js:395–398`), checking in this order: `kind === "time"` →
+(`50_chartview.ts:395–398`), checking in this order: `kind === "time"` →
 `timeTicks`, `kind === "category"` → `categoryTicks`, `scale === "log"` →
 `logTicks`, otherwise `linearTicks`. Every generator takes `(lo, hi, target)`
 with `target = 6` by default and returns `{ ticks, step }`; `logTicks` adds
@@ -356,7 +358,7 @@ With no `format=` on the axis, labels come from the step:
 - `fmtGeneral` reproduces Python's `:g` (default 6 significant digits) and is
   used for *explicit* colorbar ticks, whose precision is authored and must not
   be inferred from an unrelated automatic step. The colorbar itself ticks with
-  `linearTicks(lo, hi, 8)` (`50_chartview.js:1467`).
+  `linearTicks(lo, hi, 8)` (`50_chartview.ts:1467`).
 
 ### 6.3 The `format=` mini-language
 
diff --git a/spec/design/view-state.md b/spec/design/view-state.md
index 8dd8b780..27ffc4e7 100644
--- a/spec/design/view-state.md
+++ b/spec/design/view-state.md
@@ -5,9 +5,9 @@
 *shipped* interaction surface and [`wire-protocol.md`](wire-protocol.md) §4 on
 the wire messages; this document records the rationale and the §13
 implementation divergences. The implementation lives in
-`js/src/57_viewstate.js` (state document, history, axis bands, hover payload)
-plus hooks in `50_chartview.js`/`52_tooltip.js`/`53_interaction.js`/
-`54_kernel.js`, `python/xy/_figure.py` (message builders, `view_state()`
+`js/src/57_viewstate.ts` (state document, history, axis bands, hover payload)
+plus hooks in `50_chartview.ts`/`52_tooltip.ts`/`53_interaction.ts`/
+`54_kernel.ts`, `python/xy/_figure.py` (message builders, `view_state()`
 cache), `widget.py`, `channel.py`, and
 `python/reflex-xy/reflex_xy/` (registry push path, `on_hover`, tooltip
 mount). It builds directly on the per-axis
@@ -110,7 +110,7 @@ Consequences:
 - Selection changes keep the shipped ordering invariant (`on_brush` before
   `on_select`) regardless of writer.
 - There is exactly one implementation of "apply a state patch" in
-  `js/src/53_interaction.js`, and every entry point in this document is a
+  `js/src/53_interaction.ts`, and every entry point in this document is a
   caller of it.
 
 The browser client owns the live state; the kernel and the Reflex backend
diff --git a/spec/design/wire-protocol.md b/spec/design/wire-protocol.md
index d81fd887..60a7df51 100644
--- a/spec/design/wire-protocol.md
+++ b/spec/design/wire-protocol.md
@@ -2,7 +2,7 @@
 
 Status: **shipped**. This document specifies the message catalog dispatched by
 `xy.channel.handle_message` (`python/xy/channel.py`) and consumed by
-`js/src/54_kernel.js`, plus the first-paint buffer layouts and the version
+`js/src/54_kernel.ts`, plus the first-paint buffer layouts and the version
 handshake. The transport envelopes that carry these messages are separate:
 the anywidget comm (`python/xy/widget.py`), the `/_xy` socket.io namespace
 ([reflex-integration.md](reflex-integration.md) §2), and the `XYBF` binary
@@ -278,7 +278,7 @@ Two independent version constants:
 
 - **Renderer/spec protocol.** `PROTOCOL_VERSION = 3` (`python/xy/config.py`)
   rides every first-paint spec as `spec["protocol"]`; the client's
-  `PROTOCOL = 3` (`js/src/00_header.js`) is checked in the `ChartView`
+  `PROTOCOL = 3` (`js/src/00_header.ts`) is checked in the `ChartView`
   constructor. A mismatch replaces the chart element with "update the xy
   package and restart the kernel" and throws. Requests and replies carry no
   version of their own — the handshake happens once, at first paint, before
diff --git a/tests/pyplot/test_annotation_label_clearance.py b/tests/pyplot/test_annotation_label_clearance.py
index c4dca706..0e598c02 100644
--- a/tests/pyplot/test_annotation_label_clearance.py
+++ b/tests/pyplot/test_annotation_label_clearance.py
@@ -3,7 +3,7 @@
 matplotlib draws every annotation arrow from the text patch CENTER (relpos
 default (0.5, 0.5)), clipped at the patch edge plus the 2pt shrink. The
 shim's arrows carry that as two shape-style keys resolved by the shared
-geometry (python/xy/_arrowgeom.py + js/src/51_annotations.js):
+geometry (python/xy/_arrowgeom.py + js/src/51_annotations.ts):
 ``start_offset`` (anchor → text-box center, px) and ``label_clear`` (the
 box extents around that center).
 
diff --git a/tests/pyplot/test_color_pipeline_fixes.py b/tests/pyplot/test_color_pipeline_fixes.py
index 5f286d53..7dce20d3 100644
--- a/tests/pyplot/test_color_pipeline_fixes.py
+++ b/tests/pyplot/test_color_pipeline_fixes.py
@@ -10,12 +10,15 @@
 from __future__ import annotations
 
 import io
+from pathlib import Path
 
 import numpy as np
 import pytest
 
 import xy.pyplot as plt
 
+ROOT = Path(__file__).resolve().parents[2]
+
 
 @pytest.fixture(autouse=True)
 def _clean_state():
@@ -110,7 +113,10 @@ def test_default_colorbar_ticks_are_dense_for_small_decimal_domains():
     plt.colorbar(image)
     svg = _svg()
     assert all(f">{value:.2f}<" in svg for value in (0.02, 0.04, 0.06, 0.08, 0.12, 0.14))
-    assert "linearTicks(lo, hi, 8)" in plt.gcf()._repr_html_()
+    # The client-side colorbar mirrors the 8-tick target; the embedded bundle
+    # is minified, so assert against the client source instead of the HTML.
+    client = ROOT / "js" / "src" / "50_chartview.ts"
+    assert "linearTicks(lo, hi, 8)" in client.read_text(encoding="utf-8")
 
 
 def test_explicit_colorbar_ticks_still_honored():
diff --git a/tests/test_accessibility_contract.py b/tests/test_accessibility_contract.py
index f444eafa..d0ceadea 100644
--- a/tests/test_accessibility_contract.py
+++ b/tests/test_accessibility_contract.py
@@ -4,22 +4,31 @@
 
 ROOT = Path(__file__).resolve().parents[1]
 STATIC = ROOT / "python" / "xy" / "static"
+# Line-level markers are asserted against the TypeScript source only: the
+# built bundles are minified (identifiers renamed), and `node js/build.mjs
+# --check` proves they compile from exactly this source, so the contract
+# transfers. String-literal a11y markers are re-checked in the bundles below.
 CLIENTS = (
     (
         "source",
         "\n".join(
-            path.read_text(encoding="utf-8") for path in sorted((ROOT / "js/src").glob("*.js"))
+            path.read_text(encoding="utf-8") for path in sorted((ROOT / "js/src").glob("*.ts"))
         ),
     ),
-    (
-        "widget bundle",
-        (STATIC / "index.js").read_text(encoding="utf-8"),
-    ),
-    (
-        "standalone bundle",
-        (STATIC / "standalone.js").read_text(encoding="utf-8"),
-    ),
 )
+BUNDLES = (
+    ("widget bundle", (STATIC / "index.js").read_text(encoding="utf-8")),
+    ("standalone bundle", (STATIC / "standalone.js").read_text(encoding="utf-8")),
+)
+
+
+def test_built_bundles_keep_string_level_a11y_markers() -> None:
+    """The a11y layer's string payloads must ship: ARIA roles/attribute values
+    and the screen-reader summary id survive minification as string literals."""
+    required = ("region", "img", "status", "polite", "aria-hidden", "-summary")
+    for label, text in BUNDLES:
+        for snippet in required:
+            assert snippet in text, f"{label} lost a11y string marker {snippet!r}"
 
 
 def test_chart_exposes_parallel_semantic_layer() -> None:
@@ -70,7 +79,7 @@ def test_keyboard_activation_uses_the_click_contract() -> None:
     required = (
         'const activate = e.key === "Enter" || e.key === " ";',
         'if (!this._interactionFlag("click") || !this._hoverTarget) return;',
-        'const msg = { type: "click", trace: hit.trace, index: hit.index, screen, modifiers };',
+        'const msg: any = { type: "click", trace: hit.trace, index: hit.index, screen, modifiers };',
     )
     for label, text in CLIENTS:
         for snippet in required:
diff --git a/tests/test_arrowgeom.py b/tests/test_arrowgeom.py
index 38fd60ae..71b9b4f8 100644
--- a/tests/test_arrowgeom.py
+++ b/tests/test_arrowgeom.py
@@ -1,5 +1,5 @@
 """Arrow-path geometry: the label_clear start clearance (mirrored in
-js/src/51_annotations.js — keep behaviors in sync)."""
+js/src/51_annotations.ts — keep behaviors in sync)."""
 
 from __future__ import annotations
 
diff --git a/tests/test_benchmark_environment.py b/tests/test_benchmark_environment.py
index f2e51fcc..893fb98b 100644
--- a/tests/test_benchmark_environment.py
+++ b/tests/test_benchmark_environment.py
@@ -224,7 +224,7 @@ def test_dashboard_benchmark_reports_eviction_and_scroll_telemetry() -> None:
 def test_context_governor_reserves_pending_restores() -> None:
     """Concurrent visibility callbacks must count restores before their
     asynchronous ``webglcontextrestored`` events acquire the contexts."""
-    client = (ROOT / "js" / "src" / "50_chartview.js").read_text(encoding="utf-8")
+    client = (ROOT / "js" / "src" / "50_chartview.ts").read_text(encoding="utf-8")
 
     assert "view._ctxPendingReservation" in client
     constructor = client[client.index("  constructor(") : client.index("  _listen(")]
@@ -300,7 +300,7 @@ def test_context_governor_reserves_pending_restores() -> None:
 
 
 def test_triangle_mesh_resource_cleanup_deletes_every_coordinate_buffer() -> None:
-    client = (ROOT / "js" / "src" / "50_chartview.js").read_text(encoding="utf-8")
+    client = (ROOT / "js" / "src" / "50_chartview.ts").read_text(encoding="utf-8")
     cleanup = client[client.index("_destroyTraceResources(g, texSeen)") :]
     cleanup = cleanup[: cleanup.index("_destroyGlResources()")]
     for name in ("x0Buf", "x1Buf", "x2Buf", "y0Buf", "y1Buf", "y2Buf"):
diff --git a/tests/test_example_apps.py b/tests/test_example_apps.py
index 5f13a2d5..bb14d06e 100644
--- a/tests/test_example_apps.py
+++ b/tests/test_example_apps.py
@@ -78,7 +78,7 @@ def test_gallery_builders_render_standalone_and_introspect(charts_mod) -> None:
     for chart_id in ("business-overview", "line-walk", "composed-layers", "annotated-heatmap"):
         html = charts_mod.BY_ID[chart_id].builder().to_html()
         assert "renderStandalone" in html, chart_id
-        assert "window.xy = {" in html, chart_id
+        assert "var xy=" in html, chart_id  # minified IIFE namespace (window.xy)
 
 
 # --- FastAPI app routes (needs fastapi + httpx) -----------------------------
diff --git a/tests/test_framing.py b/tests/test_framing.py
index 2bef3ea3..9c886b48 100644
--- a/tests/test_framing.py
+++ b/tests/test_framing.py
@@ -293,9 +293,11 @@ def test_javascript_rejects_malformed_and_unaligned_frames() -> None:
 
 
 def test_widget_entry_no_longer_slices_binary_views() -> None:
-    source = (ROOT / "js" / "src" / "60_entries.js").read_text(encoding="utf-8")
+    source = (ROOT / "js" / "src" / "60_entries.ts").read_text(encoding="utf-8")
     built = CLIENT.read_text(encoding="utf-8")
     assert 'payloadBuffers(spec, model.get("buffers"))' in source
     assert "raw.map(bytesToSpan)" in source
     assert ".buffer.slice(b.byteOffset" not in source
-    assert "function decodeFrame(" in built
+    # The built bundle is minified; the decodeFrame export alias is the marker
+    # that survives identifier renaming.
+    assert "as decodeFrame" in built
diff --git a/tests/test_static_client_security.py b/tests/test_static_client_security.py
index 27cc1b67..d3e5fc37 100644
--- a/tests/test_static_client_security.py
+++ b/tests/test_static_client_security.py
@@ -12,24 +12,71 @@ def _read(path: Path) -> str:
     return path.read_text(encoding="utf-8")
 
 
-# The hand-written client is split across ordered js/src parts — 50_chartview.js
+# The client source is TypeScript ES modules under js/src — 50_chartview.ts
 # was decomposed into 50 (core) + 51_annotations/52_tooltip/53_interaction/
-# 54_kernel. Assert source-level invariants against the whole concatenation so a
-# further split never silently drops a check, plus each built bundle separately.
+# 54_kernel/56_animation/57_viewstate. Assert source-level invariants against
+# the whole concatenation so a further split never silently drops a check.
 # (label, text) pairs: the label only names the source in failure messages.
+#
+# The built bundles under python/xy/static are MINIFIED by vite (identifiers
+# renamed, whitespace collapsed), so exact source lines cannot be asserted
+# against them. Only string-literal / property-name invariants are (see
+# test_built_bundles_keep_minification_safe_invariants); every source-level
+# check still transfers to the shipped bundles because `node js/build.mjs
+# --check` (CI + `make js-check`) proves the committed bundles are compiled
+# from exactly this source.
 _CLIENT_SRC = (
-    "js/src/*.js",
-    "\n".join(_read(p) for p in sorted((ROOT / "js" / "src").glob("*.js"))),
+    "js/src/*.ts",
+    "\n".join(_read(p) for p in sorted((ROOT / "js" / "src").glob("*.ts"))),
 )
 _INDEX = ("static/index.js", _read(_STATIC / "index.js"))
 _STANDALONE = ("static/standalone.js", _read(_STATIC / "standalone.js"))
 
-CLIENT_FILES = (_CLIENT_SRC, _INDEX, _STANDALONE)
-FORMATTER_FILES = (("js/src/30_ticks.js", _read(ROOT / "js/src/30_ticks.js")), _INDEX, _STANDALONE)
-LOD_FILES = (("js/src/45_lod.js", _read(ROOT / "js/src/45_lod.js")), _INDEX, _STANDALONE)
-# The chrome default stylesheet lives in the theme part; both built bundles
-# concatenate it.
-THEME_FILES = (("js/src/20_theme.js", _read(ROOT / "js/src/20_theme.js")), _INDEX, _STANDALONE)
+CLIENT_FILES = (_CLIENT_SRC,)
+BUNDLES = (_INDEX, _STANDALONE)
+FORMATTER_FILES = (("js/src/30_ticks.ts", _read(ROOT / "js/src/30_ticks.ts")),)
+LOD_FILES = (("js/src/45_lod.ts", _read(ROOT / "js/src/45_lod.ts")),)
+# The chrome default stylesheet lives in the theme part; its rules are string
+# literals, so the bundle-level test re-asserts them in both built bundles.
+THEME_FILES = (("js/src/20_theme.ts", _read(ROOT / "js/src/20_theme.ts")),)
+
+# Chrome styling contract (§36) — shared between the source-level test and the
+# minification-safe bundle test: these all live inside string literals, which
+# the minifier preserves verbatim.
+_CHROME_WHERE_RULES = (
+    ':where(.xy [data-xy-slot="tooltip"]){',
+    ':where(.xy [data-xy-slot="legend"]){',
+    ':where(.xy [data-xy-slot="legend_swatch"]){',
+    ':where(.xy [data-xy-slot="modebar"]){',
+    ':where(.xy [data-xy-slot="modebar_button"]){',
+    ":where(.xy [data-xy-modebar-menu]){",
+    ":where(.xy [data-xy-modebar-menu-item]){",
+    ':where(.xy [data-xy-slot="modebar_button"].xy-active){',
+    ':where(.xy [data-xy-slot="selection"]){',
+    ':where(.xy [data-xy-slot="badge_item"]){',
+    ':where(.xy [data-xy-slot="tick_label"]){',
+    ':where(.xy [data-xy-slot="axis_title"]){',
+    ':where(.xy [data-xy-slot="annotation_label"]){',
+    ':where(.xy [data-xy-slot="canvas"]){cursor:',
+    ':where(.xy [data-xy-slot="canvas"][data-xy-dragmode="pan"]){cursor:',
+)
+_CHROME_TOKENS = (
+    "--chart-tooltip-bg",
+    "--chart-tooltip-text",
+    "--chart-legend-bg",
+    "--chart-modebar-bg",
+    "--chart-modebar-active",
+    "--chart-selection",
+    "--chart-selection-fill",
+    "--chart-crosshair",
+    "--chart-badge-bg",
+    "--chart-badge-text",
+)
+_BANNED_HTML_SINKS = (
+    "insertAdjacentHTML",
+    "outerHTML",
+    "document.write",
+)
 
 
 def test_chrome_visual_defaults_are_a_defeatable_where_stylesheet() -> None:
@@ -38,52 +85,23 @@ def test_chrome_visual_defaults_are_a_defeatable_where_stylesheet() -> None:
     Every chrome slot's visual defaults + --chart-* token must be present, and
     the elements must carry only structural inline styles (no inline
     background/color that would beat a utility class)."""
-    where_rules = (
-        ':where(.xy [data-xy-slot="tooltip"]){',
-        ':where(.xy [data-xy-slot="legend"]){',
-        ':where(.xy [data-xy-slot="legend_swatch"]){',
-        ':where(.xy [data-xy-slot="modebar"]){',
-        ':where(.xy [data-xy-slot="modebar_button"]){',
-        ":where(.xy [data-xy-modebar-menu]){",
-        ":where(.xy [data-xy-modebar-menu-item]){",
-        ':where(.xy [data-xy-slot="modebar_button"].xy-active){',
-        ':where(.xy [data-xy-slot="selection"]){',
-        ':where(.xy [data-xy-slot="badge_item"]){',
-        ':where(.xy [data-xy-slot="tick_label"]){',
-        ':where(.xy [data-xy-slot="axis_title"]){',
-        ':where(.xy [data-xy-slot="annotation_label"]){',
-        ':where(.xy [data-xy-slot="canvas"]){cursor:',
-        ':where(.xy [data-xy-slot="canvas"][data-xy-dragmode="pan"]){cursor:',
-    )
-    tokens = (
-        "--chart-tooltip-bg",
-        "--chart-tooltip-text",
-        "--chart-legend-bg",
-        "--chart-modebar-bg",
-        "--chart-modebar-active",
-        "--chart-selection",
-        "--chart-selection-fill",
-        "--chart-crosshair",
-        "--chart-badge-bg",
-        "--chart-badge-text",
-    )
     for path, text in THEME_FILES:
         assert "@layer base{" in text, (
             f"{path} leaves XY defaults unlayered, which outranks Tailwind utilities"
         )
-        for rule in where_rules:
+        for rule in _CHROME_WHERE_RULES:
             assert rule in text, f"{path} missing defeatable chrome rule {rule!r}"
-        for token in tokens:
+        for token in _CHROME_TOKENS:
             assert token in text, f"{path} no longer themes {token!r} in the stylesheet"
         assert "ensureChromeStylesheet" in text
 
     # The inline tooltip/legend/modebar cssText must not re-set themeable
     # properties (that would beat utility classes on specificity).
-    chartview = (ROOT / "js/src/50_chartview.js").read_text(encoding="utf-8")
+    chartview = (ROOT / "js/src/50_chartview.ts").read_text(encoding="utf-8")
     assert "ensureChromeStylesheet(root);" in chartview
     assert "background:var(--chart-tooltip-bg" not in chartview
     # modebar active state is a class toggle, never inline (its builder now lives
-    # in 53_interaction.js, so assert against the whole client source).
+    # in 53_interaction.ts, so assert against the whole client source).
     assert 'btn.classList.toggle("xy-active"' in _CLIENT_SRC[1]
 
 
@@ -97,18 +115,13 @@ def test_client_user_text_surfaces_use_text_nodes_not_html() -> None:
         "this.tooltip.appendChild(document.createTextNode(ln));",
     )
     required_style_sinks = ("sw.style.background = safeCssPaint(this.root, bg);",)
-    banned_html_sinks = (
-        "insertAdjacentHTML",
-        "outerHTML",
-        "document.write",
-    )
 
     for path, text in CLIENT_FILES:
         for sink in required_text_sinks:
             assert sink in text, f"{path} no longer protects {sink!r}"
         for sink in required_style_sinks:
             assert sink in text, f"{path} no longer sanitizes {sink!r}"
-        for sink in banned_html_sinks:
+        for sink in _BANNED_HTML_SINKS:
             assert sink not in text, f"{path} must not use HTML sink {sink}"
 
         inner_html_lines = [line.strip() for line in text.splitlines() if ".innerHTML" in line]
@@ -300,11 +313,9 @@ def test_standalone_tooltips_retain_encoded_color_and_size_channels() -> None:
             "row.size_value = this._denormalizeUnit(cpu.size[hit.index], size.domain);" in text
         ), f"{path} drops size_value"
 
-    standalone = (ROOT / "js/src/60_entries.js").read_text(encoding="utf-8")
-    generated = (ROOT / "python/xy/static/standalone.js").read_text(encoding="utf-8")
-    for text in (standalone, generated):
-        assert "g._cpu.color = column(g.trace.color.buf);" in text
-        assert "g._cpu.size = column(g.trace.size.buf);" in text
+    entries = (ROOT / "js/src/60_entries.ts").read_text(encoding="utf-8")
+    assert "g._cpu.color = column(g.trace.color.buf);" in entries
+    assert "g._cpu.size = column(g.trace.size.buf);" in entries
 
 
 def test_client_tooltip_value_formatter_preserves_strings() -> None:
@@ -332,7 +343,7 @@ def test_client_exposes_first_class_interaction_events() -> None:
         'this._dispatchChartEvent("brush",',
         'this._dispatchChartEvent("select",',
         'this.comm.send({ type: "view_change", ...detail });',
-        'const msg = { type: "click", trace: hit.trace, index: hit.index, screen, modifiers };',
+        'const msg: any = { type: "click", trace: hit.trace, index: hit.index, screen, modifiers };',
         "new BroadcastChannel(`xy:${group}`)",
     )
 
@@ -520,15 +531,9 @@ def test_client_refreshes_and_destroys_density_sample_overlays() -> None:
         for marker in chartview_required:
             assert marker in text, f"{path} no longer maintains density sample marker {marker!r}"
 
-    lod_files = (
-        ROOT / "js/src/45_lod.js",
-        ROOT / "python/xy/static/index.js",
-        ROOT / "python/xy/static/standalone.js",
-    )
-    for path in lod_files:
-        text = path.read_text(encoding="utf-8")
-        assert 'Object.prototype.hasOwnProperty.call(d, "sample")' in text
-        assert "view._applyDensitySample(g, d.sample, buffers);" in text
+    lod = (ROOT / "js/src/45_lod.ts").read_text(encoding="utf-8")
+    assert 'Object.prototype.hasOwnProperty.call(d, "sample")' in lod
+    assert "view._applyDensitySample(g, d.sample, buffers);" in lod
 
 
 def test_client_refreshes_theme_when_framework_theme_classes_change() -> None:
@@ -545,7 +550,7 @@ def test_client_refreshes_theme_when_framework_theme_classes_change() -> None:
 
 
 def test_client_lod_layer_stays_chart_agnostic_and_renderer_delegated() -> None:
-    source_lod = (ROOT / "js/src/45_lod.js").read_text(encoding="utf-8")
+    source_lod = (ROOT / "js/src/45_lod.ts").read_text(encoding="utf-8")
     assert "trace.kind" not in source_lod
     assert "markOf(" not in source_lod
 
@@ -707,21 +712,39 @@ def test_client_draws_first_class_annotation_markers() -> None:
             assert marker in text, f"{path} no longer draws annotation marker primitives"
 
 
-def test_widget_bundle_is_valid_esm_not_leaking_marker_prose() -> None:
-    """index.js is anywidget's `_esm` (widget.py). The bundler splits 60_entries
-    on `// ---- exports ----`; any text trailing that marker on its line would
-    land as bare, unparseable code in the module. Guard the exact regression:
-    the ESM must carry no marker prose and must tail with `export` statements."""
+def test_widget_bundle_is_valid_esm_and_standalone_is_a_window_global() -> None:
+    """index.js is anywidget's `_esm` (widget.py): the minified module must
+    still export the full public namespace by name. standalone.js is inlined
+    as a classic <script> by `Figure.to_html()`: it must be export-free and
+    define a top-level `var xy` namespace (window.xy) with the same surface."""
     index_text = _read(_STATIC / "index.js")
-    assert "stripped for the IIFE build" not in index_text, (
-        "index.js leaked the export-marker comment prose as bare code"
-    )
-    tail = [ln for ln in index_text.splitlines() if ln.strip()][-2:]
-    assert all(ln.startswith("export ") for ln in tail), (
-        f"index.js must end with export statements, got {tail!r}"
-    )
-    # The IIFE bundle is export-free (exports are illegal in a Function body).
-    assert "export {" not in _read(_STATIC / "standalone.js")
+    for alias in (
+        "as render",
+        "as renderStandalone",
+        "as decodeFrame",
+        "as ChartView",
+        "as MARK_KINDS",
+        "as markOf",
+        "as default",
+    ):
+        assert alias in index_text, f"index.js no longer exports {alias.split()[-1]!r}"
+
+    standalone_text = _read(_STATIC / "standalone.js")
+    assert "export {" not in standalone_text and "export{" not in standalone_text, (
+        "standalone.js must be a classic script (no ES exports)"
+    )
+    assert standalone_text.startswith("var xy="), (
+        "standalone.js must define the window.xy namespace via a top-level var"
+    )
+    for prop in (
+        ".render=",
+        ".renderStandalone=",
+        ".decodeFrame=",
+        ".ChartView=",
+        ".MARK_KINDS=",
+        ".markOf=",
+    ):
+        assert prop in standalone_text, f"standalone.js namespace lost {prop!r}"
 
 
 def test_annotation_labels_and_cursor_stay_css_defeatable() -> None:
@@ -735,7 +758,7 @@ def test_annotation_labels_and_cursor_stay_css_defeatable() -> None:
 
     # Annotation label font is a stylesheet default, not inline (only the
     # position/transform structural bits and an *explicit* color stay inline).
-    annotations = _read(ROOT / "js/src/51_annotations.js")
+    annotations = _read(ROOT / "js/src/51_annotations.ts")
     assert "font-size:11px;line-height:1.2;font-weight:500;" not in annotations, (
         "annotation label pins font inline; move it to the :where() stylesheet"
     )
@@ -747,8 +770,8 @@ def test_annotation_labels_and_cursor_stay_css_defeatable() -> None:
     assert "d.style.opacity = String(Math.max(0, Math.min(1, labelOpacity)));" in annotations
 
     # Cursor is attribute-driven, never inline (inline cursor beats cursor-* utils).
-    chartview = _read(ROOT / "js/src/50_chartview.js")
-    interaction = _read(ROOT / "js/src/53_interaction.js")
+    chartview = _read(ROOT / "js/src/50_chartview.ts")
+    interaction = _read(ROOT / "js/src/53_interaction.ts")
     assert "cursor:" not in chartview, "canvas re-pins cursor inline"
     assert "this.canvas.style.cursor" not in interaction, "drag-mode re-pins cursor inline"
     assert "this.canvas.dataset.xyDragmode = mode;" in interaction
@@ -875,3 +898,40 @@ def test_client_named_axes_handle_silent_gutters_and_reversed_ticks() -> None:
         assert label_layout.index("strategyValue") < label_layout.index("labels.length <= 1"), (
             f"{path} lets a single label bypass tick_label_strategy='none'"
         )
+
+
+def test_built_bundles_keep_minification_safe_invariants() -> None:
+    """Defense-in-depth on the shipped artifacts. The bundles are minified, so
+    only invariants that survive minification are asserted here: string-literal
+    content (the chrome stylesheet, channel names, badges) and property-name
+    sinks. Everything line-level is asserted against js/src/*.ts above and
+    transfers because `node js/build.mjs --check` proves the committed bundles
+    are compiled from exactly that source."""
+    src_inner_html = _CLIENT_SRC[1].count(".innerHTML")
+    for path, text in BUNDLES:
+        # Security: no HTML-parsing sinks, and no innerHTML sites beyond the
+        # audited icon-injection ones counted in the source.
+        for sink in _BANNED_HTML_SINKS:
+            assert sink not in text, f"{path} must not use HTML sink {sink}"
+        assert text.count(".innerHTML") == src_inner_html, (
+            f"{path} innerHTML site count diverged from js/src (audited sites)"
+        )
+        # The §36 chrome contract ships intact: layered zero-specificity
+        # defaults and every --chart-* token.
+        assert "@layer base{" in text, f"{path} lost the layered chrome stylesheet"
+        for rule in _CHROME_WHERE_RULES:
+            assert rule in text, f"{path} missing defeatable chrome rule {rule!r}"
+        for token in _CHROME_TOKENS:
+            assert token in text, f"{path} no longer themes {token!r}"
+        assert '[data-xy-slot="selection"][data-xy-band="zoom"]){' in text, (
+            f"{path} is missing the defeatable zoom-band :where() default"
+        )
+        assert "min-width:42px" in text, path
+        assert "[data-xy-modebar-select-icon]" in text, path
+        # Slot stamping + cross-frame governor machinery still present.
+        assert ".dataset.xySlot=" in text, f"{path} no longer stamps data-xy-slot"
+        assert "xy-webgl-context-governor" in text, (
+            f"{path} lost the cross-frame WebGL context governor channel"
+        )
+        # §28: reductions stay badged in the shipped client.
+        assert "zoom re-binned from sample" in text, f"{path} lost the re-bin badge"
diff --git a/tests/test_svg_export.py b/tests/test_svg_export.py
index 65e83b0a..ec25bba3 100644
--- a/tests/test_svg_export.py
+++ b/tests/test_svg_export.py
@@ -673,16 +673,16 @@ def test_density_and_heatmap_embed_png_rasters() -> None:
 
 
 def test_colormap_stops_stay_in_sync_with_js_client() -> None:
-    """The Python tables are ports of 10_colormaps.js — every stop must appear
+    """The Python tables are ports of 10_colormaps.ts — every stop must appear
     verbatim in the JS source, and the map names must match."""
-    js = (ROOT / "js" / "src" / "10_colormaps.js").read_text(encoding="utf-8")
+    js = (ROOT / "js" / "src" / "10_colormaps.ts").read_text(encoding="utf-8")
     body = js.split("COLORMAP_STOPS = {", 1)[1].split("};", 1)[0]
     js_names = set(re.findall(r"^\s*(\w+): \[", body, re.MULTILINE))
-    assert js_names == set(COLORMAP_STOPS), "colormap names diverged from 10_colormaps.js"
+    assert js_names == set(COLORMAP_STOPS), "colormap names diverged from 10_colormaps.ts"
     for name, stops in COLORMAP_STOPS.items():
         for r, g, b in stops:
             assert f"[{r}, {g}, {b}]" in body, (
-                f"{name} stop ({r},{g},{b}) missing in 10_colormaps.js"
+                f"{name} stop ({r},{g},{b}) missing in 10_colormaps.ts"
             )
 
 
diff --git a/tests/test_verify_sdist.py b/tests/test_verify_sdist.py
index d6dc24d1..4f235da2 100644
--- a/tests/test_verify_sdist.py
+++ b/tests/test_verify_sdist.py
@@ -9,27 +9,23 @@
 
 import pytest
 
+# Shaped like the real minified vite bundles: export aliases in the ESM,
+# a `var xy` IIFE namespace in the standalone build.
 INDEX_JS = (
-    "class ChartView {}\n"
-    "function render() {}\n"
-    "function renderStandalone() {}\n"
-    "function decodeFrame() {}\n"
-    "const padding = '" + ("x" * 1000) + "';\n"
-    "export { render, renderStandalone, decodeFrame, ChartView };\n"
+    "var C=class{};function r(){}function s(){}function d(){}"
+    "var p=`" + ("x" * 1000) + "`;"
+    "export{C as ChartView,d as decodeFrame,r as render,s as renderStandalone};"
 )
 STANDALONE_JS = (
-    "class ChartView {}\n"
-    "function render() {}\n"
-    "function renderStandalone() {}\n"
-    "function decodeFrame() {}\n"
-    "const padding = '" + ("x" * 1000) + "';\n"
-    "window.xy = { render, renderStandalone, decodeFrame, ChartView };\n"
+    "var xy=(function(e){var p=`" + ("x" * 1000) + "`;"
+    "return e.ChartView=class{},e.decodeFrame=()=>{},e.render=()=>{},"
+    "e.renderStandalone=()=>{},e})({});"
 )
 ENTRIES_JS = (
-    "function render() {}\n"
-    "function renderStandalone() {}\n"
+    "export function render() {}\n"
+    "export function renderStandalone() {}\n"
     "const padding = '" + ("x" * 1000) + "';\n"
-    "// ---- exports ----\n"
+    "export default { render, decodeFrame };\n"
 )
 README_MD = (
     "# xy\n\n"
@@ -176,7 +172,7 @@ def _write_sdist(
                 data = INDEX_JS.encode("utf-8")
             elif name == "python/xy/static/standalone.js":
                 data = STANDALONE_JS.encode("utf-8")
-            elif name == "js/src/60_entries.js":
+            elif name == "js/src/60_entries.ts":
                 data = ENTRIES_JS.encode("utf-8")
             elif name == "README.md":
                 data = README_MD.encode("utf-8")
@@ -522,9 +518,9 @@ def test_verify_sdist_rejects_corrupt_static_bundle(tmp_path: Path) -> None:
 
 def test_verify_sdist_rejects_corrupt_source_entry_bundle(tmp_path: Path) -> None:
     sdist = tmp_path / "xy-0.0.1.tar.gz"
-    _write_sdist(sdist, replacements={"js/src/60_entries.js": "not the source client"})
+    _write_sdist(sdist, replacements={"js/src/60_entries.ts": "not the source client"})
 
-    with pytest.raises(AssertionError, match=r"60_entries\.js"):
+    with pytest.raises(AssertionError, match=r"60_entries\.ts"):
         verify_sdist.verify_sdist(str(sdist))
 
 
diff --git a/tests/test_verify_wheel.py b/tests/test_verify_wheel.py
index 5b56c7fd..f64a54ce 100644
--- a/tests/test_verify_wheel.py
+++ b/tests/test_verify_wheel.py
@@ -52,21 +52,17 @@ def to_png(fig): ...
     raise ImportError("native core required") from err
 BACKEND = "native"
 """
+# Shaped like the real minified vite bundles: export aliases in the ESM,
+# a `var xy` IIFE namespace in the standalone build.
 INDEX_JS = (
-    "class ChartView {}\n"
-    "function render() {}\n"
-    "function renderStandalone() {}\n"
-    "function decodeFrame() {}\n"
-    "const padding = '" + ("x" * 1000) + "';\n"
-    "export { render, renderStandalone, decodeFrame, ChartView };\n"
+    "var C=class{};function r(){}function s(){}function d(){}"
+    "var p=`" + ("x" * 1000) + "`;"
+    "export{C as ChartView,d as decodeFrame,r as render,s as renderStandalone};"
 )
 STANDALONE_JS = (
-    "class ChartView {}\n"
-    "function render() {}\n"
-    "function renderStandalone() {}\n"
-    "function decodeFrame() {}\n"
-    "const padding = '" + ("x" * 1000) + "';\n"
-    "window.xy = { render, renderStandalone, decodeFrame, ChartView };\n"
+    "var xy=(function(e){var p=`" + ("x" * 1000) + "`;"
+    "return e.ChartView=class{},e.decodeFrame=()=>{},e.render=()=>{},"
+    "e.renderStandalone=()=>{},e})({});"
 )
 DEFAULT_METADATA = "\n".join(
     [
diff --git a/tests/test_viewport_bounds.py b/tests/test_viewport_bounds.py
index ea8afded..22db4e89 100644
--- a/tests/test_viewport_bounds.py
+++ b/tests/test_viewport_bounds.py
@@ -49,7 +49,7 @@ def test_axis_bounds_validation(factory) -> None:
 
 
 def test_client_clamps_pan_zoom_and_reversed_log_ranges() -> None:
-    source = (ROOT / "js/src/53_interaction.js").read_text(encoding="utf-8")
+    source = (ROOT / "js/src/53_interaction.ts").read_text(encoding="utf-8")
 
     assert "_clampAxisRange(axisId, lo, hi, anchorFrac = 0.5)" in source
     assert "const reverse = c1 < c0" in source