Vincent BAIN wrote: > No, Grass is a topological GIS, that is adjacent polygons share a > single common boundary...
That's right. > You can digize a layer of boundaries, then > create the polygon topology with v.build. Correction: you don't need to run v.build. Once you exit v.digit the topology is built automatically. To create a polygon digitize it's boundaries, make sure their nodes are snapped, digitize centroid within each polygon. In GRASS, a polygon is made of boundaries and a centroid inside. Maciek _______________________________________________ grassuser mailing list [email protected] http://grass.itc.it/mailman/listinfo/grassuser
