Hi all, this is not really a problem of GRASS by itself since I know that being topological is a choice made by GRASS, and it surely is a needed choice in the world of GIS.
However, I happen to work sometimes with material from archaeological excavations. Mostly intra-site polygons, created by Arc-users, documenting layers (loci, features, and contexts) of soils overlaying each others. The problem here is that these polygons often overlap since the layers cover each others to different extents. Not only that, but each polygon has attributes in a db table. Once these are imported to GRASS and cleaned along the way they change considerably. Even when the "Do not clean polygons" (v.in.ogr -c) is checked some polygons lose their connection to the table by being converted to boundaries without centroids. I wonder if anyone else have had these issues in some context (whether archaeology or some other discipline), because I would like to see if there is some workaround. I have been forced to use QGIS to be able to check the vectors in these situations, although I would definitely prefer to do all my work in GRASS. Salim Razzaz _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
