Does this helps you? v.category input=map_of_vedit output=map2 option=add layer=2 v.db.addtable map=map2 layer=2 table=table2
In that way you preserve original information in layer1, and new categories in layer2 Hopefully that will be useful. Maybe someone has a better idea. Daniel >Dear list >I break a number of features in a vector map into two pieces using >v.edit, tool=break and specific coordinates. This results in two parts >with identical attributes after breaking (which is what I want) but also >the cat is identical. >I think, this is the reason why I get exactly the same length for the >two parts when calculating it using v.to.db, tool=length. Likewise, the >end coordinates cannot be computed as there is more than one element for >some categories. >How can I update the category to unique values for each feature? >Thanks for any suggestions, >Mira
_______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
