Martin Besta wrote: > > When I am executing v.overlay (to clip my map with boundary line) I > recieve always the clipped line (ainput is line, binput is area), > however I need the polygon. When I switched first and second input > layer, I had recieved an empty layer.
note features to be considered should have some cat value. (v.category) > A little problem I have with v.buffer...the output is without attribut > table. v.buffer can't transfer the attribute as a new area may be from the overlap of two original areas with different attributes. (this was buried in the help page, I've just made it more visible) > I was trying first v.buffer, then v.db.addtable and finaly v.overaly > intersect with input line for buffer. But then is the output line > again. can you reproduce the effect using the demo spearfish dataset, and post the command line commands? > The problem with the spatial dissolve I did with the conversion to > raster and raster to vector again. Every raster cell has value from > the attribut (biotop code in my layer) and the conversion to vector > again dissolved all other lines, only polygons boundaries stay on. glad you found something that worked; it would be nicer to not need the conversion from v->r->v of course. v.distance might help for reconnecting attributes. Hamish _______________________________________________ grassuser mailing list [email protected] http://grass.itc.it/mailman/listinfo/grassuser
