Richard Chirgwin wrote: > I've imported some MapInfo maps. > > The problem is that there are 38,000 areas, and some have imported with > their centroids and boundaries, but without the areas.
GRASS "area" is a closed boundary(ies) + centroid inside. > How do I re-create the missing areas from a set of boundaries and > centroids? You *propably* need to close boundaries, by snapping their nodes. Depending on your dataset you might try v.clean tool=snap to automate this. > ( I have tried V.build but it still arrives with empty areas). v.build is not the right tool. Maciek _______________________________________________ grassuser mailing list grassuser@grass.itc.it http://grass.itc.it/mailman/listinfo/grassuser