[geos-devel] [GEOS] #529: SimpleSnapRounder performs bogus noding

GEOS geos-trac at osgeo.org
Thu Apr 5 11:36:35 EDT 2012


#529: SimpleSnapRounder performs bogus noding
------------------------+---------------------------------------------------
 Reporter:  strk        |       Owner:  geos-devel@…              
     Type:  defect      |      Status:  new                       
 Priority:  major       |   Milestone:  3.4.0                     
Component:  Default     |     Version:  svn-trunk                 
 Severity:  Unassigned  |    Keywords:                            
------------------------+---------------------------------------------------
 I've committed a GeometryNoder class with r3593 with which doing some
 noding tests. If I try to use SimpleSnapRounder noder rather than the
 IteratedNoder (or SimpleNoder) I get a completely wrong answer on the
 simpest case:

 {{{
 LINESTRING(0 0, 10 10, 10 0, 0 10)
 }}}

 There's something deeply wrong in the code and the whole Noding interface
 is overly confusing (probably due to memory management not correctly
 ported).

-- 
Ticket URL: <http://trac.osgeo.org/geos/ticket/529>
GEOS <http://geos.refractions.net/>
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite (JTS).


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