Rich Shepard wrote: > The output maps from r.slope.aspect. r.resamp.rst, and even r.topidx the > output maps have values for each cell rather than trends. This is very > difficult to interpret by non-technical viewers. > > I've seen maps of slopes, profile and planar curvature, and topographic > wetness indices that are more smoothly colored. If one wants to determine > the curvature of slopes adjacent to a specific cell at its base it would be > easier to see this if the values do not change with each cell. When we stand > at the foot of a hill we tend to not focus on each detail of the terrain but > the overall slope, profile curvature, and planar curvature. It's this type > of overview that I'm trying to display. > > Is there a way to get smoother output maps that are visually more > informative to non-specialists?
Filter the input data with r.neighbors[1], r.mfilter, etc. [1] I wouldn't use method=mode if you're going to calculate derivatives. I'm not so sure about method=median either. -- Glynn Clements <gl...@gclements.plus.com> _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user