Nikos Alexandris wrote: > > 5) r.bilinear syntax > > r.bilinear input=subset output=subsetsurface --overwrite > > For the second part of the test: > > I am having trouble to resample with r.resamp.interp mode=bilinear. But > I think this has to do with the available values (I got only 6 points > imported) > > In the manual one can read as well: > > Note that for bilinear and bicubic interpolation, cells of the output > raster that cannot be bounded by the appropriate number of input cell > centers are set to null. This could occur due to the input cells being > outside the current region, being NULL or MASKed. > > So, I suppose with a larger sample it shoud feasible.
r.resamp.interp (and r.bilinear) are meant for resampling "filled" maps. They will propagate any null values, rather than filling them by interpolating/extrapolating nearby non-null cells. If you have a "sparse" set of points, import them as a vector map then use v.surf.rst. I'm not sure if r.fillnulls[1] handles sparse maps (islands of individual cells), or whether it's limited to filling small "holes" in mostly-filled maps. [1] r.fillnulls is a script which uses v.surf.rst for the interpolation. -- Glynn Clements <[EMAIL PROTECTED]> _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user