[Boost-bugs] [Boost C++ Libraries] #13511: Boost transformation has possible bug

Subject: [Boost-bugs] [Boost C++ Libraries] #13511: Boost transformation has possible bug
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2018-04-04 18:25:58

#13511: Boost transformation has possible bug
------------------------------+------------------------------
 Reporter:  asksoni@…         |      Owner:  Lucanus Simonson
     Type:  Bugs              |     Status:  new
Milestone:  To Be Determined  |  Component:  polygon
  Version:  Boost 1.62.0      |   Severity:  Problem
 Keywords:                    |
------------------------------+------------------------------
 Applying multiple transformation & translation simultaneously do not
 produce desired result.

 **For example :**

 **Case 1 : Produces wrong result.**
   btr =
 boost::polygon::transformation<int>(boost::polygon::axis_transformation::FLIP_X);\\
   btr +=
 boost::polygon::transformation<int>(boost::polygon::axis_transformation::FLIP_XY);\\
   res = boost::polygon::transform(object, btr);

 **Case 1 : Produces right result.**
   btr =
 boost::polygon::transformation<int>(boost::polygon::axis_transformation::FLIP_X);\\
   res = boost::polygon::transform(object, btr);\\
   btr =
 boost::polygon::transformation<int>(boost::polygon::axis_transformation::FLIP_XY);\\
   res = boost::polygon::transform(res, btr);

-- 
Ticket URL: <https://svn.boost.org/trac10/ticket/13511>
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