Hi all, there is a new module in grass7 for raster interpolation called r.resamp.bspline, based on the lidar tool methods. NULL cells are filled on the go, no need to fill them first. Alternatively, the module only interpolates NULL cells in the input raster, running quite fast in this mode. The output raster map can then be used to fill NULL cells in the input map (r.patch input=raster_with_holes,raster_with_interpolated_nulls output=gapfilled). Please test!
Markus M _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user