> > Hello Users group > > Have two vector-maps with areas map-A and map-B > > Is there a grass-module to calculate the total surface (m2 or ha by > category) > of the areas of the map-B witch are inside the area(s) of the map-A. > > Thanks > > Joop Goedbloed > Joop,
Combine the two maps using v.overlay: v.overlay ainput=<map-A> binput=<map-B> output=<output_name> operator=and The geometry of the output map will have the area of map-B falling within map-A. If you need, you can then upload the area to the database: v.db.addcol map-B columns='area double' v.to.db map=map-B option=area units=<m or h depending on metres2 or hectares> column=area Richard Chirgwin _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
