On 2016-02-16 at 10:50, Ken Mankoff <mank...@gmail.com> wrote: > I'm also having trouble figuring out the exact syntax for the > r.mapcalc approach. > > r.mapcalc "map_out = if(map_in * (map_in > ${p}), map_in, 0, 0)"
I figured out my mapcalc issue. Should be "map_in < ${p}". It also seems that mapcalc is several times faster than the export/import method. I assume that means it is the correct approach for filtering like this. -k. _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user