Hei Martin, Same experience here. For larger datasets from LiDAR I rather use IDW for interpolation.
The "per hole filling" in r.fillnulls is not utilizing multiple cores and if you have a lot of holes that can slow down the whole process significantly. Not sure if a mask can help to avoid filling no data areas around your data. For r.fillnulls there is an enhancement ticket (with a patch) for speedup of the patching of the maps at the end... https://trac.osgeo.org/grass/ticket/1938 However, it does not tackle parallel filling of holes... Cheers Stefan _______________________________________________ grass-user mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/grass-user
