#978: UnaryUnion topology exception
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 Reporter:  komzpa      |       Owner:  geos-devel@…
     Type:  defect      |      Status:  closed
 Priority:  major       |   Milestone:
Component:  Default     |     Version:  3.7.0
 Severity:  Unassigned  |  Resolution:  invalid
 Keywords:              |
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Comment (by mdavis):

 Yes, if I understand it correctly.

 UnaryUnion of B works correctly in JTS.  But I do see some very close
 coordinates in the output though, which might mean that GEOS is hitting a
 robustness problem during the sequence of unions somewhere in UnaryUnion.

 The upcoming OverlayNG should fix this kind of problem.

-- 
Ticket URL: <https://trac.osgeo.org/geos/ticket/978#comment:6>
GEOS <http://trac.osgeo.org/geos>
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite 
(JTS).
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