Thanks very much Glynn. We're using r.neighbors as part of a complex surface process modeling routine. This may help to solve a recent set of weird results we've been getting.
Michael On 7/31/07 1:54 AM, "Glynn Clements" <[EMAIL PROTECTED]> wrote: > > Glynn Clements wrote: > >>> Sorry, I am a beginner... what shall I do with this gather-circle.c? >> >> Replace raster/r.neighbors/gather.c with the new file, re-compile, >> install the modified r.neighbors as e.g. r.neighbors.circle. >> >> If you don't have the source code or can't figure out how to make the >> necessary changes, you'll need to wait until someone integrates it >> into GRASS. > > FWIW, I've added a -c flag to r.neighbors to use a circular > neighborhood rather than a square. > > I'm unsure as to whether the test should be < or <=. It's currently > <=, but that gives "spikes" (single cells) at the four edges. Using < > would give "flats", and would always omit the outermost row/column of > pixels. Maybe there should be a +0.5 in the distance calculation? __________________________________________ Michael Barton, Professor of Anthropology Director of Graduate Studies School of Human Evolution & Social Change Center for Social Dynamics & Complexity Arizona State University phone: 480-965-6213 fax: 480-965-7671 www: http://www.public.asu.edu/~cmbarton _______________________________________________ grassuser mailing list [email protected] http://grass.itc.it/mailman/listinfo/grassuser
