nani, have a look at: http://grass.osgeo.org/grass64/manuals/html64_user/v.extrude.html stefan -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/assign-heigght-value-to-pixel-x-y-tp6272588p6286851.html Sent from the Grass - Users mailing list archive at Nabble.com.