On Wed, 2008-09-03 at 10:40 +0300, Ari Jolma wrote: > > Indirectly, yes. You can use r.reclass to create areas of similar > > elevation from the raster DEM and r.to.vect to covert to polygons. Also, use the "-s" switch (in r.to.vect) to get smoothed and not edgy polygons :-)