> > 1- Should I create 1 Location with 4 different mapsets (for each of > the considered scales)? Or should I use 1 location, one mapset and 4 > different regions?
one location if all the analysis will be done with one coordinate system one mapset = one region, one resolution so, perhaps, is better you to use four different mapsets (four levels) > 2- How can I define a region that is not a perfect square' Because in > "Set Region" we have North, South, East and West Boundaries. And my > regions are not perfect squares. A region don't need to be square. And you can use an analysis mask. Raster > Mask, or r.mask. Luís Ferreira _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user