[GRASS-user] HowTo fix country border topology problem?

[Martin Landa]

2009/10/16 Roger André <randre at gmail.com>:
> Ok, well now I have a big dissolved polygon with a bunch of small
> unconnected lines inside of it.  I'd like to get rid of the lines, and
> just have the external border left.
>
> Any ideas?

in the case that type of those "unconnected lines" is 'line', you can
use 'v.extract' with 'type' parameter to filter desired features.

v.extract in=imap out=omap type=boundary,centroid

Martin

-- 
Martin Landa <landa.martin gmail.com> * http://gama.fsv.cvut.cz/~landa