Re: [GRASS-user] Terrain Curve Values
Rich wrote: Just to confirm: the curve output from r.slope.aspect is positive when the curve is convex and negative when the curve is concave. Correct? There's nothing on the man page about this. Perhaps a sentence could be added. please run an experiment after creating a pseudo surface with r.surf.volcano (wiki addons) using the gaussian method, and report back to us. Then we can add the confirmed answer to the help page. suggestions for pseudo DEM: (after r.sun wiki page) r.surf.volcano out=gauss method=gaussian kurtosis=1 regards, Hamish ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Terrain Curve Values
On Tue, 2 Mar 2010, Markus Neteler wrote: Here the answer from Helena (not on this list): yes - convex is positive and concave is negative. It is the same as in v.surf.rst. Thank you both. Rich ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Terrain Curve Values
On Mon, Mar 1, 2010 at 4:19 PM, Rich Shepard rshep...@appl-ecosys.com wrote: Just to confirm: the curve output from r.slope.aspect is positive when the curve is convex and negative when the curve is concave. Correct? Here the answer from Helena (not on this list): On Tue, Mar 2, 2010 at 1:41 AM, Helena Mitasova hmit...@unity.ncsu.edu wrote: yes - convex is positive and concave is negative. It is the same as in v.surf.rst. There's nothing on the man page about this. Perhaps a sentence could be added. I agree. Markus ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
