I tried to extract the streams within a specific drainage basin using the wxPython GUI and the v.overlay function. It fails because it assumes the operation is 'or' (set UNION) and does not permit the user to select a different operator.
To write only those streams within the named basin to an output file requires the set operator INTERSECT, or 'and.' I did not see anywhere on the GUI window tabs where the operator could be selected. If I missed it, please point that out to me. Else, consider adding a widget to select the operator. Rich _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
