Tim, I had a similar problem some time ago, with a lots of shapefiles (very large area, forest cover).
Here you can find some scripts, perhaps useful. I think it is better to reproject and merge shapefiles via ogr2ogr. The very trivial task (in my experience) was to clean vector after import in GRASS. v.clean tool=rmdupl,snap,bpol Regards, Paolo _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
