[geos-devel] Bug in GEOS polygonizer

Sandro Santilli strk at keybit.net
Fri Mar 7 09:58:52 PST 2014

On Fri, Mar 07, 2014 at 07:10:48PM +0200, Mika Heiskanen wrote:
> Hi all,
> I'm new to GEOS, and this is my first post to this list which I just
> subscribed to.
> I am quite confident I have found a bug in the GEOS polygonizer.
> The problem:
> - I have a set of edges which I first polygonize, and then
>   call buildGeometry on to get a single multipolygon.
> - The last two rings in the multipolygon output should not be
>   there, they have already been listed as holes in earlier
>   polygons.

The polygonizer function will return a polygon with an hole
and the polygon filling the hole. It's the expected behavior.


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