[GRASS-user] Migrate to Grass 7 question; vector topology?

[Markus Neteler]

On Fri, Mar 15, 2013 at 3:31 PM, Stephen Sefick <sas0025 at auburn.edu> wrote:
> All,
>
> I am thinking of moving to grass7.  I know that the vector back end has
> changed and there is a requirement to rebuild vector topology. Once this is
> done can grass6 still read the vectors with little error?

No, you have to rebuilt the topology there.
But that's easily done with v.build or v.build.all.

> I would like to
> keep grass 6 around to make sure that, if I need to, I can use the "old
> stand by" if I can not figure out how to do it in grass 7.

You can - see:
http://grasswiki.osgeo.org/wiki/Convert_all_GRASS_6_vector_maps_to_GRASS_7

Markus