Thanks, will try this. On Thu, Nov 17, 2011 at 3:41 AM, Benjamin Ducke <[email protected]> wrote: > I think Michael's reply (see below) to my message is > actually the answer to your question ;) > > Ben > > On Wednesday, November 16, 2011 10:13 AM, "Michael Barton" > <[email protected]> wrote: >> r.surf.area >> >> will calculate a topographically corrected area for rasters. So if you >> convert your vector areas to raster, this will do the trick. >> >> Michael >> ______________________________ >> C. Michael Barton >> Director, Center for Social Dynamics & Complexity >> Professor of Anthropology, School of Human Evolution & Social Change >> Arizona State University >> Tempe, AZ 85287-2402 >> USA >> >> voice: 480-965-6262 (SHESC), 480-727-9746 (CSDC) >> fax: 480-965-7671(SHESC), 480-727-0709 (CSDC) >> www: http://csdc.asu.edu, http://shesc.asu.edu >> http://www.public.asu.edu/~cmbarton >> > > -- > Benjamin Ducke > {*} Geospatial Consultant > {*} GIS Developer > > [email protected] > > > On Wednesday, November 16, 2011 11:01 AM, "maning sambale" > <[email protected]> wrote: >> Hi, >> >> I have a series polygons located in a mountainous terrain. I can >> convert the 2d vector into 2.5d using v.drape and a DEM, however, it >> only converts 2D vector point or line data and not areas. My task is >> to calculate the area in hectares of the polygon incorporating the >> elevation/surface of the polygon. I then need to subdivide the main >> polygon into smaller polygons using a preferred area in hectares. >> >> How to calculate 2.5d polygon areas in grass? >> >> -- >> cheers, >> maning >> ------------------------------------------------------ >> "Freedom is still the most radical idea of all" -N.Branden >> wiki: http://esambale.wikispaces.com/ >> blog: http://epsg4253.wordpress.com/ >> ------------------------------------------------------ >> _______________________________________________ >> grass-user mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/grass-user >> > _______________________________________________ > grass-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-user >
-- cheers, maning ------------------------------------------------------ "Freedom is still the most radical idea of all" -N.Branden wiki: http://esambale.wikispaces.com/ blog: http://epsg4253.wordpress.com/ ------------------------------------------------------ _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
