[geos-devel] Re: [GEOS] #488: TopologyException unioning valid geometries [JTS FAILS]

GEOS geos-trac at osgeo.org
Wed Dec 14 12:04:27 EST 2011

#488: TopologyException unioning valid geometries [JTS FAILS]
 Reporter:  sky         |       Owner:  geos-devel@…              
     Type:  defect      |      Status:  new                       
 Priority:  major       |   Milestone:  3.4.0                     
Component:  Default     |     Version:  svn-trunk                 
 Severity:  Unassigned  |    Keywords:  jtsfail                   

Comment(by sky):

 Replying to [comment:11 strk]:
 > But hold on a second: the input geometry is invalid:
 > $ ./tests/xmltester/XMLTester --test-valid-input
 > /home/strk/Desktop/Download/bug488.xml: case0: test0: :  invalid
 geometry (Geometry A): Self-intersection at or near point
 2.4182989742693599 48.878099566078362
 > What told you they were valid ?
 huh? The isValid() function of GEOS told me so. I've tested with 3.2, 3.3
 and the svn version (of 2 months ago of course).

Ticket URL: <http://trac.osgeo.org/geos/ticket/488#comment:12>
GEOS <http://geos.refractions.net/>
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite (JTS).

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