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I have been doing the r.walk analysis but fail to generate the result. The movement direction map and walking cost map from stop points is extremely small, limited to a 3x3 or 5x5 square. Does anyone know about this issue?

The DEM is a 90m SRTM DEM. enter image description here

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  • Can you post the outputs from g.region -p and r.info <your_DEM> ??
    – Micha
    Commented Jun 29, 2020 at 20:59
  • You may also consider to use the new NASADEM ~30m. There is a convenient addon for the import: grass.osgeo.org/grass7/manuals/addons/r.in.nasadem.html
    – markusN
    Commented Jul 1, 2020 at 7:22
  • Thanks for the hints! I forget to project my map first...thats why... lmao @Micha
    – Zac
    Commented Jul 2, 2020 at 12:40

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