Hi all, is it possible in GRASS to perform something similar to "Topo to Raster" as known in ArcGIS [1]? Thanks in advance, Martin [1] http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//009z0000007m000000.htm -- Martin Landa * http://geo.fsv.cvut.cz/gwiki/Landa