I don't know the latest devlopments on the 3d vector system, but I would convert the vector to rasters (2d or 3d) and then use map algebra...
giovanni 2009/1/3 Adam Dershowitz <adershow...@exponent.com>: > Is it possible to use grass to calculate the volume of a part of a 3-D > vector object? > What I mean is if I have a mountain, for example, that is defines in one > vector map. Then, in another map, I define an area (a plane for example). > This represents a slice through the mountain. > Is it possible to calculate the volume of the mountain that lies above the > second plane? (how much rock is above the slice through it?) It seems like > it should be doable, but I am not really sure how to get going. > Any suggestions? > > Thanks, > > --Adam > > > > _______________________________________________ > grass-user mailing list > grass-user@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/grass-user > _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user