Here ist the test case. I also added my result of r.grow.distance. Falko http://osgeo-org.1803224.n2.nabble.com/file/n5102335/test_case.zip test_case.zip -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/r-grow-distance-tp5100098p5102335.html Sent from the Grass - Users mailing list archive at Nabble.com.