Hi, 2008/9/10 Raphael Saldanha <saldanha.plangeo at gmail.com>: > I have a shapefile loaded in grass, as a 3D Vector: [...] > And a column, named "Elevation": You don't need that, define layer=0 to use z-coordinates directly. Martin -- Martin Landa <landa.martin gmail.com> * http://gama.fsv.cvut.cz/~landa *