Dear list,
I've tried many times to calculate movement costs with r.walk (different DEMs, but mostly GeoTiff format) but every time I get symmetric/euclidean results (radial structure of the cost surface). First I want pure walking information, so I set lamda = 0. The friction surface should now be ignored in the calculation, no? The DEMs I use do have valleys and ridges, so I don't understand the results of the r.walk calculation. Am I'm doing some dumb error? Unfortunately it's very hard to find software which calculates movement cost, besides of GRASS I only know ArcGIS with the Vertical Factor in the path distance calculation, but the calculation does only work for quite small grids.
I'm grateful for any advice! thanks, david _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
