[GRASS-user] v.generalize: strange behaviour on win?

Markus Neteler neteler at osgeo.org
Sat Jan 28 04:51:30 EST 2012


On Wed, Jan 25, 2012 at 11:03 AM, Paolo Cavallini <cavallini at faunalia.it> wrote:
> Hi all.
> Commands like:
>
> v.generalize input=province at Mapset_stefano type=area layer=1 -c
> type=boundary method=douglas threshold=100000 look_ahead=7
> reduction=50 slide=0.5 angle_thresh=3 degree_thresh=0
> closeness_thresh=0 betweeness_thresh=0 alpha=1.0 beta=1.0 iterations=1
> output=Province_general3
>
> on Linux go well, whereas on windows some of the features are not simplified: see
> https://int.faunalia.it/~paolo/generalize.zip

Hint for non-Italians: Gauss-Boaga zone 1 projection.

> for an example.
> Anyone confirms? Should I open a bug?

I have tried it on Linux, 6.4.2RC3+, the result with the command you provided
the resulting map appears to be identical to the original map.

If that's a bug I don't know, it depends on the selected parameters?

MarkusN


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