Trying to follow the GRASS Book (page 292ff) to resample my 10m DEM to 5m resolution using generation of random points and RST spline interpolation I fail to get usable results.
The input DEM has about 5000 cols and 5500 rows; a huge number of cells. After waiting a long time for processing with 1 million plus points and learning that 2G of RAM are insuffient for that many points, I settled on 100,000 points. The command used was: r.random in=aberDEM n=100000 vector_out=aber10rand --o When that finished I invoked: v.surf.rst in=aber10rand elev=elev10rand.def --o using the defaults for v.surf.rst. When it finally finishes and I display elev10rand.def I get broad horizontal color bands, from blue on the top to dark brown on the bottom. What have I done incorrectly? Rich _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
