[geos-devel] [GEOS] #275: Topology Exception on valid geometries

Martin Davis mbdavis at refractions.net
Mon Jul 6 12:44:40 EDT 2009


This works in JTS.

GEOS wrote:
> #275: Topology Exception on valid geometries
> ------------------------+---------------------------------------------------
>  Reporter:  yabo        |       Owner:  geos-devel at lists.osgeo.org
>      Type:  defect      |      Status:  new                       
>  Priority:  major       |   Milestone:  3.1.1                     
> Component:  Default     |     Version:  svn-trunk                 
>  Severity:  Unassigned  |    Keywords:                            
> ------------------------+---------------------------------------------------
>  Hi,
>
>  I've encoutered a situation where two valid geometries (as stated by
>  IsValidOp) throw a Topology Exception when being unioned. The first
>  geometry is a MultiPolygon and the second a Polygon. Unfortunately I
>  couldn't shrink the geometries down to a human-parsable size.
>
>  I have this problem with both geos-3.1.0 and geos-svn-trunk.
>
>  The reported error is :
>  {{{
>  TopologyException: found non-noded intersection between -3138.99 39.9929,
>  -3195.93 131.777 and -3145.05 62.5969, -3138.99 39.9929 -3138.99 39.9929
>  }}}
>
>  I've attached the test program source to the ticket.
>
>  Thanks,
>
>   
> ------------------------------------------------------------------------
>
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-- 
Martin Davis
Senior Technical Architect
Refractions Research, Inc.
(250) 383-3022



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