Hi, >> 1) How to get "just the outline" of the island ? Both v.type and v.extract >> with "type=boundary,line" produce an empty vector. > > The manual reads: > > --- > NOTES > > Only features with a category number will be extracted. So if you want > to extract boundaries (which are usually without category, as that > information is normally held in the area's centroid) you must first use > v.category to add them. > ---
you should be to extract boundaries without category by setting 'layer=-1' , e.g. v.extract in=landcover out=b type=boundary layer=-1 new=-1 Martin -- Martin Landa <landa.martin gmail.com> * http://gama.fsv.cvut.cz/~landa * _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
