[geos-devel] [GEOS] #910: Difference operation resulted with a wrong geometry as a result of a precision limitation

GEOS geos-trac at osgeo.org
Wed Dec 9 13:33:34 PST 2020


#910: Difference operation resulted with a wrong geometry as a result of a
precision limitation
-------------------------------------------------+-------------------------
 Reporter:  yanivnavon                           |       Owner:  geos-
                                                 |  devel@…
     Type:  defect                               |      Status:  closed
 Priority:  major                                |   Milestone:  3.10.0
Component:  Default                              |     Version:  3.6.2
 Severity:  Significant                          |  Resolution:  invalid
 Keywords:  polygon, geometry, geometries,       |
  difference, union, multipolygon                |
-------------------------------------------------+-------------------------
Changes (by pramsey):

 * status:  new => closed
 * resolution:   => invalid


Comment:

 As of 3.9 you might find the snap-rounded operations (difference with a
 tolerance) provide more predictability in terms of holding to a
 particularly domain grid, assuming you can stand the initial round-off
 stop.

-- 
Ticket URL: <https://trac.osgeo.org/geos/ticket/910#comment:3>
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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