[geos-devel] [GEOS] #438: ST_Equals(X,X) = false ??

Tue May 10 03:40:25 EDT 2011

#438: ST_Equals(X,X) = false ??
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 Reporter:  strk        |       Owner:  geos-devel@…              
     Type:  defect      |      Status:  new                       
 Priority:  major       |   Milestone:  3.3.0                     
Component:  Default     |     Version:  svn-trunk                 
 Severity:  Unassigned  |    Keywords:                            
------------------------+---------------------------------------------------
 While producing the testcase for bug #368 I've got to a point where
 expected result doesn't match obtained result but they are really the
 same, in HEXWKB form.

 So I tried a relate and... they don't result as being the same !!!

 HEXWKB is this:

 {{{
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
 }}}

 Might be happening only in my development branch, so isn't confirmed yet.

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Ticket URL: <http://trac.osgeo.org/geos/ticket/438>
GEOS <http://geos.refractions.net/>
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite (JTS).