Docs add deckgl raster tutorial#530
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Adds a tutorial walking through Cloud Optimized GeoTIFF rendering in the browser with deck.gl-raster — for building standalone web apps on Planetary Computer data. No companion notebook (TypeScript/React). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The tutorial scaffolded a Vite/React app around APIs that don't work as
written: COGLayer({url}) (the real prop is geotiff:), a backend signing
proxy (the PC sign endpoint is public/anonymous), and colormap/rescale
props COGLayer doesn't have. It also linked a deckgl-raster-example repo
that doesn't exist.
Replace it with a working, committed single index.html: an esm.sh import
map (no build), client-side anonymous signing, COGLayer with a
main-thread DecoderPool (size: 0) to dodge the cross-origin-worker block,
and a MapboxOverlay basemap. Add the rendered-app screenshot and a real
206 range-request log.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Replace em dashes with sentence splits, commas, and colons, and rename the trailing-ellipsis section header to a plain statement. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Match the developmentseed/deck.gl-raster examples more closely: interleaved MapboxOverlay with beforeId so basemap labels stay on top, and onGeoTIFFLoad -> fitBounds to frame the scene from its own bounds instead of a STAC bbox. Also make the control panel background solid (it was slightly transparent and bled the imagery behind it) and refresh the screenshot. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
kylebarron
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Jun 4, 2026
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This is a nice example of how to have a single-page HTML file with deck.gl-raster! I'll adopt something like this in the deck.gl-raster docs
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| // Insert deck layers before the first label layer so basemap text | ||
| // (place names, roads) stays legible on top of the imagery. | ||
| beforeId = map.getStyle().layers.find((l) => l.type === "symbol")?.id; |
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This is too low in the MapLibre layer stack.
If you look at the rendered example:
It's hard to see the image because other layers from the basemap are on top of it.
If you load the map style json (https://basemaps.cartocdn.com/gl/positron-gl-style/style.json), you can try different id values from the layers array.
In my example I use this:
https://github.com/developmentseed/deck.gl-raster/blob/55619f8f15c3e8b8696480f5974d6bd49bcfedf1/examples/naip-mosaic/src/App.tsx#L445
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Based on the outline here