Hi, I just added a new module to the wiki addons page: r.surf.volcano
It creates an artificial surface resembling a seamount or cone volcano. The user can alter the size and shape of the mountain and optionally roughen its surface. http://grass.osgeo.org/wiki/GRASS_AddOns#r.surf.volcano http://trac.osgeo.org/grass/browser/grass-addons/raster/r.surf.volcano It's a shell script and requires GRASS 6.3.0 or newer. I'm using it for testing hydrodynamic flow models and r.sun. =====-===== GRASS> r.surf.volcano --help Description: Creates an artificial surface resembling a seamount or cone volcano. Keywords: raster Usage: r.surf.volcano [-r] output=name [peak=value] [friction=value] [sigma=value] [--overwrite] [--verbose] [--quiet] Flags: -r Roughen the surface --o Allow output files to overwrite existing files --v Verbose module output --q Quiet module output Parameters: output Name for output raster map peak Height of cone default: 1000 friction Friction of distance, (the 'n' in 1/d^n) options: 1-25 default: 6 sigma Surface roughness factor default: 1.0 =====-===== enjoy, Hamish _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user