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
