[GRASS-user] Problem with v.generalize to simplify areas

[Markus Neteler]

On Wed, Sep 16, 2009 at 9:40 PM, Markus Metz
<markus.metz.giswork at googlemail.com> wrote:
> v.generalize does a great job with simplifying or smoothing lines, but areas
> either disappear or attribute attachment changes. That's why I would
> recommend not to use v.generalize for areas. v.clean tool=prune behaves the
> other way around, areas are always preserved, with attribute attachment, as
> they are, but line simplification does not always work, i.e. produces
> strange results or does not simplify at all. Should we swap the warnings,
> e.g. say for v.generalize that there are problems with processing areas and
> for areas use v.clean tool=prune instead?

Yes, and also perhaps add a type test? Like v.select and v.overlay which
do not work yet with all types (although desired :-) ).

Markus