[geos-devel] Re: [GEOS] #501: Snap operation: wrong snapping

GEOS geos-trac at osgeo.org
Mon Dec 12 03:11:07 EST 2011

#501: Snap operation: wrong snapping
 Reporter:  aperi2007   |       Owner:  geos-devel@…              
     Type:  defect      |      Status:  new                       
 Priority:  major       |   Milestone:  GEOS Future               
Component:  Default     |     Version:  svn-trunk                 
 Severity:  Unassigned  |    Keywords:  jtsfail                   
Changes (by strk):

  * keywords:  => jtsfail
  * version:  3.3.0 => svn-trunk
  * milestone:  3.3.2 => GEOS Future


 The case also fails with JTS. It's a known limitation of the snapping
 code, quoting from the documentation:
  * Too much snapping can result in invalid topology
  * being created, so the number and location of snapped vertices
  * is decided using heuristics to determine when it
  * is safe to snap.

Ticket URL: <http://trac.osgeo.org/geos/ticket/501#comment:1>
GEOS <http://geos.refractions.net/>
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite (JTS).

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