Debug file

Contains RainbowVis-JS, to create a pallete of colors. SEE https://github.com/anomal/RainbowVis-JS

Author: pvzzombs

rainbowvis.js

@@ -0,0 +1,308 @@
+/*
+RainbowVis-JS 
+Released under Eclipse Public License - v 1.0
+*/
+
+function Rainbow()
+{
+	"use strict";
+	var gradients = null;
+	var minNum = 0;
+	var maxNum = 100;
+	var colours = ['ff0000', 'ffff00', '00ff00', '0000ff']; 
+	setColours(colours);
+	
+	function setColours (spectrum) 
+	{
+		if (spectrum.length < 2) {
+			throw new Error('Rainbow must have two or more colours.');
+		} else {
+			var increment = (maxNum - minNum)/(spectrum.length - 1);
+			var firstGradient = new ColourGradient();
+			firstGradient.setGradient(spectrum[0], spectrum[1]);
+			firstGradient.setNumberRange(minNum, minNum + increment);
+			gradients = [ firstGradient ];
+			
+			for (var i = 1; i < spectrum.length - 1; i++) {
+				var colourGradient = new ColourGradient();
+				colourGradient.setGradient(spectrum[i], spectrum[i + 1]);
+				colourGradient.setNumberRange(minNum + increment * i, minNum + increment * (i + 1)); 
+				gradients[i] = colourGradient; 
+			}
+
+			colours = spectrum;
+		}
+	}
+
+	this.setSpectrum = function () 
+	{
+		setColours(arguments);
+		return this;
+	}
+
+	this.setSpectrumByArray = function (array)
+	{
+		setColours(array);
+		return this;
+	}
+
+	this.colourAt = function (number)
+	{
+		if (isNaN(number)) {
+			throw new TypeError(number + ' is not a number');
+		} else if (gradients.length === 1) {
+			return gradients[0].colourAt(number);
+		} else {
+			var segment = (maxNum - minNum)/(gradients.length);
+			var index = Math.min(Math.floor((Math.max(number, minNum) - minNum)/segment), gradients.length - 1);
+			return gradients[index].colourAt(number);
+		}
+	}
+
+	this.colorAt = this.colourAt;
+
+	this.setNumberRange = function (minNumber, maxNumber)
+	{
+		if (maxNumber > minNumber) {
+			minNum = minNumber;
+			maxNum = maxNumber;
+			setColours(colours);
+		} else {
+			throw new RangeError('maxNumber (' + maxNumber + ') is not greater than minNumber (' + minNumber + ')');
+		}
+		return this;
+	}
+}
+
+function ColourGradient() 
+{
+	"use strict";
+	var startColour = 'ff0000';
+	var endColour = '0000ff';
+	var minNum = 0;
+	var maxNum = 100;
+
+	this.setGradient = function (colourStart, colourEnd)
+	{
+		startColour = getHexColour(colourStart);
+		endColour = getHexColour(colourEnd);
+	}
+
+	this.setNumberRange = function (minNumber, maxNumber)
+	{
+		if (maxNumber > minNumber) {
+			minNum = minNumber;
+			maxNum = maxNumber;
+		} else {
+			throw new RangeError('maxNumber (' + maxNumber + ') is not greater than minNumber (' + minNumber + ')');
+		}
+	}
+
+	this.colourAt = function (number)
+	{
+		return calcHex(number, startColour.substring(0,2), endColour.substring(0,2)) 
+			+ calcHex(number, startColour.substring(2,4), endColour.substring(2,4)) 
+			+ calcHex(number, startColour.substring(4,6), endColour.substring(4,6));
+	}
+	
+	function calcHex(number, channelStart_Base16, channelEnd_Base16)
+	{
+		var num = number;
+		if (num < minNum) {
+			num = minNum;
+		}
+		if (num > maxNum) {
+			num = maxNum;
+		} 
+		var numRange = maxNum - minNum;
+		var cStart_Base10 = parseInt(channelStart_Base16, 16);
+		var cEnd_Base10 = parseInt(channelEnd_Base16, 16); 
+		var cPerUnit = (cEnd_Base10 - cStart_Base10)/numRange;
+		var c_Base10 = Math.round(cPerUnit * (num - minNum) + cStart_Base10);
+		return formatHex(c_Base10.toString(16));
+	}
+
+	function formatHex(hex) 
+	{
+		if (hex.length === 1) {
+			return '0' + hex;
+		} else {
+			return hex;
+		}
+	} 
+	
+	function isHexColour(string)
+	{
+		var regex = /^#?[0-9a-fA-F]{6}$/i;
+		return regex.test(string);
+	}
+
+	function getHexColour(string)
+	{
+		if (isHexColour(string)) {
+			return string.substring(string.length - 6, string.length);
+		} else {
+			var name = string.toLowerCase();
+			if (colourNames.hasOwnProperty(name)) {
+				return colourNames[name];
+			}
+			throw new Error(string + ' is not a valid colour.');
+		}
+	}
+	
+	// Extended list of CSS colornames s taken from
+	// http://www.w3.org/TR/css3-color/#svg-color
+	var colourNames = {
+		aliceblue: "F0F8FF",
+		antiquewhite: "FAEBD7",
+		aqua: "00FFFF",
+		aquamarine: "7FFFD4",
+		azure: "F0FFFF",
+		beige: "F5F5DC",
+		bisque: "FFE4C4",
+		black: "000000",
+		blanchedalmond: "FFEBCD",
+		blue: "0000FF",
+		blueviolet: "8A2BE2",
+		brown: "A52A2A",
+		burlywood: "DEB887",
+		cadetblue: "5F9EA0",
+		chartreuse: "7FFF00",
+		chocolate: "D2691E",
+		coral: "FF7F50",
+		cornflowerblue: "6495ED",
+		cornsilk: "FFF8DC",
+		crimson: "DC143C",
+		cyan: "00FFFF",
+		darkblue: "00008B",
+		darkcyan: "008B8B",
+		darkgoldenrod: "B8860B",
+		darkgray: "A9A9A9",
+		darkgreen: "006400",
+		darkgrey: "A9A9A9",
+		darkkhaki: "BDB76B",
+		darkmagenta: "8B008B",
+		darkolivegreen: "556B2F",
+		darkorange: "FF8C00",
+		darkorchid: "9932CC",
+		darkred: "8B0000",
+		darksalmon: "E9967A",
+		darkseagreen: "8FBC8F",
+		darkslateblue: "483D8B",
+		darkslategray: "2F4F4F",
+		darkslategrey: "2F4F4F",
+		darkturquoise: "00CED1",
+		darkviolet: "9400D3",
+		deeppink: "FF1493",
+		deepskyblue: "00BFFF",
+		dimgray: "696969",
+		dimgrey: "696969",
+		dodgerblue: "1E90FF",
+		firebrick: "B22222",
+		floralwhite: "FFFAF0",
+		forestgreen: "228B22",
+		fuchsia: "FF00FF",
+		gainsboro: "DCDCDC",
+		ghostwhite: "F8F8FF",
+		gold: "FFD700",
+		goldenrod: "DAA520",
+		gray: "808080",
+		green: "008000",
+		greenyellow: "ADFF2F",
+		grey: "808080",
+		honeydew: "F0FFF0",
+		hotpink: "FF69B4",
+		indianred: "CD5C5C",
+		indigo: "4B0082",
+		ivory: "FFFFF0",
+		khaki: "F0E68C",
+		lavender: "E6E6FA",
+		lavenderblush: "FFF0F5",
+		lawngreen: "7CFC00",
+		lemonchiffon: "FFFACD",
+		lightblue: "ADD8E6",
+		lightcoral: "F08080",
+		lightcyan: "E0FFFF",
+		lightgoldenrodyellow: "FAFAD2",
+		lightgray: "D3D3D3",
+		lightgreen: "90EE90",
+		lightgrey: "D3D3D3",
+		lightpink: "FFB6C1",
+		lightsalmon: "FFA07A",
+		lightseagreen: "20B2AA",
+		lightskyblue: "87CEFA",
+		lightslategray: "778899",
+		lightslategrey: "778899",
+		lightsteelblue: "B0C4DE",
+		lightyellow: "FFFFE0",
+		lime: "00FF00",
+		limegreen: "32CD32",
+		linen: "FAF0E6",
+		magenta: "FF00FF",
+		maroon: "800000",
+		mediumaquamarine: "66CDAA",
+		mediumblue: "0000CD",
+		mediumorchid: "BA55D3",
+		mediumpurple: "9370DB",
+		mediumseagreen: "3CB371",
+		mediumslateblue: "7B68EE",
+		mediumspringgreen: "00FA9A",
+		mediumturquoise: "48D1CC",
+		mediumvioletred: "C71585",
+		midnightblue: "191970",
+		mintcream: "F5FFFA",
+		mistyrose: "FFE4E1",
+		moccasin: "FFE4B5",
+		navajowhite: "FFDEAD",
+		navy: "000080",
+		oldlace: "FDF5E6",
+		olive: "808000",
+		olivedrab: "6B8E23",
+		orange: "FFA500",
+		orangered: "FF4500",
+		orchid: "DA70D6",
+		palegoldenrod: "EEE8AA",
+		palegreen: "98FB98",
+		paleturquoise: "AFEEEE",
+		palevioletred: "DB7093",
+		papayawhip: "FFEFD5",
+		peachpuff: "FFDAB9",
+		peru: "CD853F",
+		pink: "FFC0CB",
+		plum: "DDA0DD",
+		powderblue: "B0E0E6",
+		purple: "800080",
+		red: "FF0000",
+		rosybrown: "BC8F8F",
+		royalblue: "4169E1",
+		saddlebrown: "8B4513",
+		salmon: "FA8072",
+		sandybrown: "F4A460",
+		seagreen: "2E8B57",
+		seashell: "FFF5EE",
+		sienna: "A0522D",
+		silver: "C0C0C0",
+		skyblue: "87CEEB",
+		slateblue: "6A5ACD",
+		slategray: "708090",
+		slategrey: "708090",
+		snow: "FFFAFA",
+		springgreen: "00FF7F",
+		steelblue: "4682B4",
+		tan: "D2B48C",
+		teal: "008080",
+		thistle: "D8BFD8",
+		tomato: "FF6347",
+		turquoise: "40E0D0",
+		violet: "EE82EE",
+		wheat: "F5DEB3",
+		white: "FFFFFF",
+		whitesmoke: "F5F5F5",
+		yellow: "FFFF00",
+		yellowgreen: "9ACD32"
+	}
+}
+
+if (typeof module !== 'undefined') {
+  module.exports = Rainbow;
+}