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Es werden Posts vom Januar, 2018 angezeigt.

Gimp now supports the HGT file format

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In the latest developer version Gimp (2.9.8) now supports the HGT file format.

So what is HGT? That’s topography data basically just containing elevation in meters of various landscape (HGT stands for “height“), gathered by the Shuttle Radar Topography Mission (SRTM) run by various space agencies (NASA, National Geospatial-Intelligence Agency, German and Italian space agencies…). 

You can read more about the file format in Jehans blog:
https://girinstud.io/news/2017/12/new-format-in-gimp-hgt/

Get Gimp >= 2.9.8. Get the HGT file you are interested in. I used this on: https://dds.cr.usgs.gov/srtm/version2_1/SRTM3/Eurasia/N50E014.hgt.zip Unzip the file.Open the HGT file in Gimp.  It is OK, that the file is all gray. Now we have to go to the next step.Edit the HGT file with Colours -> Levels
Use the black and white triangles in the "Input Levels" section to show only the interesting data. To be more exact you can open the levels dialogue a second time. Export the HGT file a…