Hello Grass-Users and -Experts, I'm trying to realize ArcGIS processes in GRASS. In this context I tried to dissolve the boundaries of adjacent areas of the same category (type of column is 'character') to afterwards calculate their size. While doing this I met the following problem. Because of the fact that v.dissolve uses v.reclass the dissolving procedure creates only multipart features (according to the classes created by the category-based reclassification). What I need are single area features of the same category (without matched together to a few classes). This way I would be able to address every individual dissolved area and calculate its size. The spatial dissolving on its own works well and generates the expected number of areas respectively centroids. But the simultaneously created table only shows a few records/classes (cats with the dissolve-column as attribute). I tried already to drop the table, delete the vector-db connection and recategorize the dissolved map, but I didn't succeed this way.
I hope anybody can help me. Thanks, Christoph P.S: I'm working with GRASS 6.4.0svn, db-driver: PostgreSQL on Linux P.P.S: Sorry for possibly receiving this message again and again, but I had problems with subscribing. -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/v-dissolve-doesn-t-create-singlepart-features-tp5935306p5935306.html Sent from the Grass - Users mailing list archive at Nabble.com. _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
