[gdal-dev] Support for Terrain-RGB
Greg Troxel
gdt at lexort.com
Mon Jan 5 12:21:34 PST 2026
rayg via gdal-dev <gdal-dev at lists.osgeo.org> writes:
> Strange encoding, -10000 meters isn't deep enough for the Marianas Trench. You could borrow another 10 km from the 1.6
> million meters still available on the positive side.
>
> Scaling by 0.1 also means a 10 cm vertical resolution., which is useless for some use cases. The 24 bits per pixel could
> be much better allocated.
There's a difference between "should gdal have support for this encoding
which people use and in which people might encounter data" and "how
should I design the best encoding".
I don't understand how your critique of Terrain-RGB bears on what gdal
should do about it.
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