Alex wrote: > Given sets of points with the same category what command would I use to > turn each set into a line? Does v.build.polylines work in > this case? > > These seems like a common thing to do, but I can't seem to > find any examples.
have a look at the brand new script "v.in.lines" the order of the points you feed it is important. use 'v.out.ascii where="cat = $n"' to select points by category. for multiple cats you can pipe that directly into v.in.lines in a loop. Get list of valid cats for the loop with: v.category $MAP option=print | sort -n | uniq Hamish _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user