[DOCS] fix raster tiling blog cover so tiles match source pixel size - #3101
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jiayuasu merged 2 commits intoJul 13, 2026
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The cover drew the original raster as an 18x18 grid while the tiled output used a 32x32 grid, so the source appeared coarser than its own tiles. Redraw both sides from a single 32x32 field at the same 7.5px pixel pitch: the left shows the whole scene and the right shows the identical scene split into 8x8 tiles of 4x4 pixels, so the tiles reassemble into the source and differ only by the inter-tile gaps.
Redraw the left raster as the exact 32x32 image the existing tiles already form, rather than a freshly generated pattern, so the original artwork is preserved and the left is a faithful reassembly of the tiles at the same 7.5px pixel pitch. Only the left raster and its labels change; the tiles and the rest of the figure stay as they were.
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[DOCS] my subjectWhat changes were proposed in this PR?
The cover illustration for the "Open Huge GeoTIFFs Without the 2 GB Wall" raster tiling blog post drew the original raster (left, the large source file) as an 18×18 grid, while the tiled output (right) was a 32×32 image. This made the source appear coarser than its own tiles, even though tiling does not change resolution.
This PR redraws only the left raster as the exact 32×32 image the existing tiles already form, at the same 7.5px pixel pitch. The left is now a faithful reassembly of the tiles — same picture, same pixel size — differing only by the gaps between tiles. The 64 tiles, background, 2 GB wall, arrow, titles, and trailing tiles are unchanged.
Only
docs/blog/posts/raster-tiling-reader-cover.svgis modified (the left raster group and its three labels).How was this patch tested?
Rendered the updated SVG to PNG and verified visually that the left raster and the right tiles are the same image at the same pixel size, and confirmed the file remains well-formed XML. No code paths are affected.
Did this PR include necessary documentation updates?