If the transformation that you need is linear, use v.transform AGus *************************************************** Dr. Agustin Lobo Instituto de Ciencias de la Tierra (CSIC) Marti Franques s/n 08028 Barcelona (Spain) tel. 34 3 330 2716 fax. 34 3 411 0012 alobo at ija.csic.es alobo at eno.princeton.edu ***************************************************