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Clamp CenterZoom within MinZoom and MaxZoom bounds #250

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Merged
bdon merged 1 commit into from
Oct 20, 2025
Merged

Clamp CenterZoom within MinZoom and MaxZoom bounds #250

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5 changes: 5 additions & 0 deletions pmtiles/extract.go
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Original file line number Diff line number Diff line change
Expand Up @@ -438,6 +438,11 @@ func Extract(_ *log.Logger, bucketURL string, key string, minzoom int8, maxzoom

header.MaxZoom = uint8(maxzoom)
header.MinZoom = uint8(minzoom)
if header.CenterZoom < header.MinZoom {
header.CenterZoom = header.MinZoom
} else if header.CenterZoom > header.MaxZoom {
header.CenterZoom = header.MaxZoom
}

headerBytes := SerializeHeader(header)

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