On 11/2/07, Stefan Eriksson <[EMAIL PROTECTED]> wrote: > On Nov 2, 2007 1:48 AM, Moritz Lennert <[EMAIL PROTECTED]> wrote: > > On Fri, November 2, 2007 00:45, Stefan Eriksson wrote: > > > Hello, > > > > > > I am absolutely new to GRASS, so please forgive me if my questions are > > > a bit naive. > > > > > > I am trying to create isoareas from DEM data. > > > So far I have managed to create the polygons from DEM data by > > >> r.mapcalc "newElev2 = round(elevation.dem / 100) * 100" > > > 100% > > >> r.to.vect > > > > Have you tried r.contour ? > > Yes, but I want polygons rather than lines as output. r.contour only > produce lines, does it not? >
Another approach might be to classify the raster using r.reclass then convert to polygons using r.to.vect. -- Matthew T. Perry http://www.perrygeo.net "Never ascribe to malice, that which can be adequately explained by incompetence." _______________________________________________ grassuser mailing list [email protected] http://grass.itc.it/mailman/listinfo/grassuser
