I think I'm a bit late on the scene in responding to this query. If you are going to use a current (1.5) installation - see if you have GRASS installed (an option during installation). If you do then have a look at the r.mapcalc functionality. Mind you, if you have not used GRASS very much it's a bit of a learning curve - I think that time investment is worth it, but then, I'm biased :-)
Patrick ------------------------------------------ Dr. F. Patrick Graz Snr. Researcher, Multidisciplinary Research Centre, University of Namibia _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
