Hi Ivan, thanks for your answer On Fri, Nov 02, 2007 at 12:51:50PM +0100, ivan marchesini wrote: > hmmm > really strange... > did you verify the topology of the world map? > > v.build map=$map GRASS 6.0.2 (World):~ > v.build map=World Building topology ... 4010 primitives registered Building areas: 100% 1983 areas built 1953 isles built Attaching islands: 100% Attaching centroids: 100% Topology was built. Number of nodes : 3980 Number of primitives: 4010 Number of points : 0 Number of lines : 0 Number of boundaries: 2042 Number of centroids : 1968 Number of areas : 1983 Number of isles : 1953 Number of areas without centroid : 15 GRASS 6.0.2 (World):~ >
don't know what to do with this information. What about the 15 "areas without centroid"? I just started a new v.overlay operation after building ithe topology using v.build - same effect. Thanks, Martin -- Martin Bley _______________________________________________ grassuser mailing list grassuser@grass.itc.it http://grass.itc.it/mailman/listinfo/grassuser