Il 16/10/2015 16:52, Radim Blazek ha scritto: > So it seem to be a problem in r.contour, thus question to grass list. indeed. somehow the region is smaller than I expected, sorry for the noise. all the best. -- Paolo Cavallini - www.faunalia.eu QGIS & PostGIS courses: http://www.faunalia.eu/training.html