topology

I'm wondering if there is a command that builds topology, just like "build" in ArcInfo
and in making polygons out of lines. I had a short look at the v-commands but
couldn't find any of interest.

Hi,

the v.support (option=build) is used to build up the topology.
To change lines to areas, use v.line2area (may be named v.line2area.sh).

Cheers

  Markus