Hi grass users; We traced bird migration by marine radar.
By using graphic analyze of radar monitor capture on PC, we had many line vectors of bird flight. I would like to add new columns of the number of node and lenght of line vector, So; v.db.addcol line_db columns="num_node int" v.db.addcol line_db columns="length double precision" After that, to update and fill two columus, what commands do I use ? I think...can I use SQL query with spatilite...is it right ? Best Yasuo shimada ( Japan Weather Association ) _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
