[geos-devel] Re: [GEOS] #527: Union and UnaryUnion both fail at correctly node input lines

GEOS geos-trac at osgeo.org
Mon Apr 2 09:32:23 EDT 2012


#527: Union and UnaryUnion both fail at correctly node input lines
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 Reporter:  strk        |       Owner:  geos-devel@…              
     Type:  defect      |      Status:  new                       
 Priority:  major       |   Milestone:  3.3.4                     
Component:  Default     |     Version:  3.3.3                     
 Severity:  Unassigned  |    Keywords:                            
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Comment(by strk):

 Ah, I see the EdgeNodingValidator runs _before_ we re-add the common bits
 that we removed before runnign the operation. I bet the re-addition of
 commit bits is introducing more non-noded intersection. It would not be
 the first time I detect such behavior. I start thinking that removing
 common bits heuristic isn't such a good one.

-- 
Ticket URL: <http://trac.osgeo.org/geos/ticket/527#comment:6>
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GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite (JTS).


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