Dietrich Schröder ha scritto: > 3) Using the vectorize tool for polygons from Sextante, I got some > problems for complex polygons, i.e. polygons with holes. For instance, > if you want to create from a DEM polygons with height classes, the lower > height classes of cause will contain the higher ones, so the lower > height classes should have holes. But my results don’t have any holes, > but they are overlapped by the other polygons. For a map it makes no > difference, but you can’t use these data for further analysis…
Dietrich, which Sextante version are you using? I have reclassified a DTM in reference to some heigth classes and then I applied the Vectorize raster layer (polygons) tool: it works fine with the latest Sextante nightly build [1]. There's no trace of overlapping polygons. Best regards, Antonio [1] http://forge.osor.eu/plugins/wiki/index.php?Downloads&id=13&type=g -- Antonio Falciano http://www.linkedin.com/in/antoniofalciano _______________________________________________ Gvsig_internacional mailing list Gvsig_internacional@listserv.gva.es http://listserv.gva.es/cgi-bin/mailman/listinfo/gvsig_internacional