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Published 20 hours ago • verified publisher icon mapbox

Custom terrain RGB/hillshade

Open NasH5169 opened this issue 2 years ago • 0 comments

mapbox-gl-js version: 2.10.0

Hi,

We are trying to display our custom terrain / hillshade using RGB tiles. To do so, we went through the following procedure:

gdalwarp -t_srs EPSG:3857 -dstnodata None -novshiftgrid -co TILED=YES -co COMPRESS=LZW -co BIGTIFF=IF_NEEDED -ts 18000 18000 -r lanczos -wo SOURCE_EXTRA=1000 SRTM.tif SRTM.3857.tif

rio rgbify -b -10000 -i 0.1 SRTM.3857.tif SRTM.3857.RGB.tif

gdal2tiles.py --zoom=0-12 --processes=8 --srcnodata=-32768 -x SRTM.3857.RGB.tif tiles/

mb-util --image_format=png --scheme=tms tiles/ terrain_rgb.mbtiles

So, we ended up with a working MBTiles filled with RGB PNG files, though below the result is not satisfying as you can see different weird spots usually located at around 3000 meters height.

We tried the procedure with two different sources (SRTM and EUDEM) the result is the same.

Do you have any idea?

Thanks.

terrain_rgb_hillshade_holes

NasH5169 avatar Oct 20 '22 09:10 NasH5169