[Boost-bugs] [Boost C++ Libraries] #10049: Error in polygon set shrink

Subject: [Boost-bugs] [Boost C++ Libraries] #10049: Error in polygon set shrink
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-05-13 12:26:27

#10049: Error in polygon set shrink
-------------------------------------------------+-------------------------
 Reporter:  Jakob Schou Jensen                   |      Owner:  ljsimons
  <jakob.schou.jensen@…>                         |     Status:  new
     Type:  Bugs                                 |  Component:  polygon
Milestone:  To Be Determined                     |   Severity:  Problem
  Version:  Boost 1.55.0                         |
 Keywords:                                       |
-------------------------------------------------+-------------------------
 I have a case where shrinking a four vertex polygon (polygon set) gives a
 wrong result. The input vertices are

 {{{
 (4000, 0)
 (2500, 500)
 (0, 3000)
 (0, 0)
 }}}

 This is shrunken by an amount of 1000. The result should be a triangle but
 it is not. See attached image where the input polygon is red and the
 result is green.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10049>
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