Rick Reeves wrote: > I'm using v.in.ogr to clip a polygon set (in this case, county > boundaries) to the boundary of a (rectangular) raster image. > > As far as I know, this is the only way to do this; I tried to create > a new location with the same boundaries and import the polygon > shapefile into the location, but clipping did not occur as expected. > > In any case, v.in.ogr did not clip the 'boundary polygons' to the the > edge of the raster image, but included the entire polygon. Only > excluded polygons completely outside of the bounding box are clipped.
I assume you used 'v.in.ogr spatial='. This works like v.select. > There MUST be a way to clip all polygons to the bounding box edge. > Can any one suggest a way? v.in.region + v.overlay. > The second edition of Netler's book discusses v.cutregion.sh and > v.cutter methods, but I cant find any evidence of these in GRASS 6.2. See the GRASS 5<->6 module porting list on the wiki: http://grass.gdf-hannover.de/wiki/GRASS_Module_Porting_List and the GRASS 6.3 module synopsis: http://grass.ibiblio.org/gdp/grassmanuals/grass63_module_list.pdf Hamish ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
