[geos-devel] [GEOS] #230: polygon intersection exception.

[Martin Davis]

The second polygon is invalid - this is expected behaviour.

GEOS wrote:
> #230: polygon intersection exception.
> ------------------------+---------------------------------------------------
>  Reporter:  anigold     |       Owner:  geos-devel at lists.osgeo.org
>      Type:  defect      |      Status:  new                       
>  Priority:  major       |   Milestone:  3.1.0                     
> Component:  Default     |     Version:  3.0.0                     
>  Severity:  Unassigned  |    Keywords:                            
> ------------------------+---------------------------------------------------
>  {{{
>          std::string str = "POLYGON ((112.3903710739794900
>  22.3851129617344210, 114.1261324827294900 22.3851129617344210,
>  114.1261324827294900 23.5479374992368590, 112.3903710739794900
>  23.5479374992368590, 112.3903710739794900 22.3851129617344210)) ";
>          geos::geom::Geometry* pgeom0 = reader.read( str );
>
>          str = "POLYGON ((114.0876590000000000 22.5249449999999990,
>  114.1853440000000000 22.5531790000000000, 114.1704040000000000
>  22.5438380000000010, 114.1423630000000000 22.5351350000000000,
>  114.0874290000000000 22.5245199999999990, 114.0892680000000000
>  22.5255820000000000, 114.0936350000000100 22.5266430000000000,
>  114.0876590000000000 22.5249449999999990))";
>          geos::geom::Geometry* pgeom1 = reader.read( str );
>
>          geos::geom::Geometry* pint = pgeom0->intersection( pgeom1 );
>
>  }}}
>
>  when execute the last line code, the util::TopologyException will be
>  throwed.
>
>   
> ------------------------------------------------------------------------
>
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-- 
Martin Davis
Senior Technical Architect
Refractions Research, Inc.
(250) 383-3022