Hi all (esp. Marco). I see an implementation of zonal stats: https://trac.osgeo.org/qgis/browser/trunk/qgis/src/analysis/vector/qgszonalstatistics.cpp?rev=15529 Are they usable? I could not find a GUI. Or are they meant to be used through plugins? All the best. -- Paolo Cavallini: http://www.faunalia.it/pc