Hi, 2009/9/3 Julian Burgos <jmburgos at u.washington.edu>: > Thanks for the quick answers! It is possible then to do 3d visualization > using the TclTk GUI? sure, just use Tcl/Tk Nviz [1]. Martin [1] http://grass.osgeo.org/grass64/manuals/html64_user/nviz.html -- Martin Landa <landa.martin gmail.com> * http://gama.fsv.cvut.cz/~landa