I'm using GRASS' r.walk for the first time, and I'm trying calculate the best path between two different points. I have a DEM (from SRTM) and a slope map derived from that same DEM. Both are in the same directory, and I'm running it via command line.
The command is pretty simple, but I'm getting an error I'm not sure how to troubleshoot.
R.walk elevation=cut_n30e000.tif friction=Slope_Italy_Greece.tif output=pathing start_coordinates=36.440683,28.216723 stop_coordinates=36.195597,27.964125
I get the following from running the command:
Walking costs are a=0.72 b=6 c=1.9998 d=-1.9998 Lambda is 1 Slope_factor is -0.2125 ERROR: Raster map <cut_n30e000.tif> not found
What do I do about that error? How is it "not found"? It's in the same directory.