Dear Markus, many thanks for the tip.
Aldo -----Messaggio originale----- Da: [email protected] [mailto:[email protected]] Per conto di Markus Neteler Inviato: mercoledì 30 giugno 2010 16.30 A: Aldo Clerici Cc: [email protected] Oggetto: Re: [GRASS-user] Connecting vector points with the same category number On Tue, Jun 15, 2010 at 12:15 PM, Aldo Clerici <[email protected]> wrote: > Dear GRASSusers, > > having a vector point map with many different category values, is there a > way to construct a vector map with lines connecting the points with the > same category number ? Dear Aldo, I think that v.in.lines should do the job (GRASS 6.5 and 7): http://grass.osgeo.org/grass65/manuals/html65_user/v.in.lines.html The input could be generated with v.out.ascii (Spearfish example): v.out.ascii archsites fs=, where="cat=1 or cat= 3" | cut -d',' -f1,2 593493,4914730,1 589860,4922000,3 I have drafted a FAQ at: http://grass.osgeo.org/wiki/Convert_points_to_lines Markus PS: I think that we could add this to GRASS 6.4, too (for now, you can just download it from SVN: http://trac.osgeo.org/grass/browser/grass/branches/develbranch_6/scripts/v.i n.lines ) _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
