Re: [Boost-bugs] [Boost C++ Libraries] #11725: union_ fails to create holes

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #11725: union_ fails to create holes
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2015-10-15 11:53:53

#11725: union_ fails to create holes
-------------------------------+---------------------------
  Reporter:  jan.kleemann@…    |      Owner:  barendgehrels
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  geometry
   Version:  Boost 1.59.0      |   Severity:  Problem
Resolution:                    |   Keywords:
-------------------------------+---------------------------

Comment (by jan.kleemann@…):

 difference has the same problem:
 {{{
 p1: POLYGON((0 0,0 3,3 3,3 0,0 0))
 p2: POLYGON((3 1,1 1,1 2,2 2,3 1))
 is_valid(p1): 1
 is_valid(p2): 1
 p1 - p2: MULTIPOLYGON(((3 1,3 0,0 0,0 3,3 3,3 1,2 2,1 2,1 1,3 1)))
 is_valid(p1 - p2): 0
 }}}

 Should also be
 {{{
 p1 - p2: MULTIPOLYGON(((0 1,0 3,3 3,3 0,0 0,0 1),(3 1,2 2,1 2,1 1,3 1)))
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/11725#comment:2>
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