[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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