FIELD 1: type count min max point 0 0 0 line 1379 1 1379 boundary 0 0 0 centroid 0 0 0 area 0 0 0 all 1379 1 1379
2) Delete all vector categories in field 1
v.category in=testmap out=outmap
option=del
3) Add vector categories in field 1 with step=2
v.category in=outmap out=stepmap
option=add step=2
FIELD 1: type count min max point 0 0 0 line 1379 1 2757 boundary 0 0 0 centroid 0 0 0 area 0 0 0 all 1379 1 2757
4) Add categories/centroids to a vector map without categories
v.category in=wkt out=wktnew
option=add
Results can be tested using d.what.vect.
Last changed: $Date$