[geos-devel] Re: [GEOS] #524: IntersectionMatrix of a line with itself has NO boundary intersection [JTS fails too]

[GEOS]

#524: IntersectionMatrix of a line with itself has NO boundary intersection [JTS
fails too]
------------------------+---------------------------------------------------
 Reporter:  strk        |       Owner:  geos-devel@…              
     Type:  defect      |      Status:  new                       
 Priority:  major       |   Milestone:  3.3.3                     
Component:  Default     |     Version:  3.3.2                     
 Severity:  Unassigned  |    Keywords:  jtsfail                   
------------------------+---------------------------------------------------

Comment(by strk):

 Note that the input is composed by a mix of closed and non closed
 linestrings:
 {{{
 =# select path, ST_IsClosed(geom) from
 ST_Dump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
  path | st_isclosed
 ------+-------------
  {1}  | f
  {2}  | f
  {3}  | t
  {4}  | f
  {5}  | f
 (5 rows)
 }}}

 There's actually a _single_ closed line

-- 
Ticket URL: <http://trac.osgeo.org/geos/ticket/524#comment:2>
GEOS <http://geos.refractions.net/>
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite (JTS).