http://fluidbook.microdesign.nl/geoinformatics/02-2009/ look at page 44 (and do not comment on the ugly viewer... ;) ). -- Paolo Cavallini: http://www.faunalia.it/pc _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user