Re: [Boost-bugs] [Boost C++ Libraries] #6063: resize does not offset rectangles (etc.) correctly when using corner_fill_arc

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #6063: resize does not offset rectangles (etc.) correctly when using corner_fill_arc
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-11-06 23:42:51

#6063: resize does not offset rectangles (etc.) correctly when using
corner_fill_arc
-------------------------------+------------------------
  Reporter:  dbfaken@…         |      Owner:  asydorchuk
      Type:  Bugs              |     Status:  assigned
 Milestone:  To Be Determined  |  Component:  polygon
   Version:  Boost 1.47.0      |   Severity:  Problem
Resolution:                    |   Keywords:
-------------------------------+------------------------

Comment (by asydorchuk):

 Adding duplicate ticket #6080:

 """
 Hi,

 I found two bug in polygonset::resize() as follows,

   //bug1
     std::vector<Point> pts;
     Polygon             poly;
     PolygonSet          polySet, polySetResult;

     pts.clear();
     pts.push_back(Point( 6300,  0));
     pts.push_back(Point( 0,  0));
     pts.push_back(Point( 0,  4750));
     pts.push_back(Point( 1250,  6000));
     pts.push_back(Point( 1250,  7500));
     pts.push_back(Point( 2850,  7500));
     pts.push_back(Point( 2850,  5950));
     pts.push_back(Point( 5950,  5950));
     pts.push_back(Point( 5950,  5750));
     pts.push_back(Point( 6300,  5400));

     boost::polygon::set_points(poly, pts.begin(), pts.end());

     polySet += poly;
     polySetResult += polySet-1000;

   //bug2
     std::vector<Point> pts2;
     Polygon             poly2;
     PolygonSet          polySet2, polySetResult2;

     pts2.clear();
     pts2.push_back(Point(2100, 2575));
     pts2.push_back(Point(1700, 2575));
     pts2.push_back(Point(1700, 2365));
     pts2.push_back(Point(1800, 2265));
     pts2.push_back(Point(1835, 2265));
     pts2.push_back(Point(1835, 1945));
     pts2.push_back(Point(1645, 1945));
     pts2.push_back(Point(1645, 2305));
     pts2.push_back(Point(1440, 2305));
     pts2.push_back(Point(1440, 2790));
     pts2.push_back(Point(1145, 2790));
     pts2.push_back(Point(1145, 1805));
     pts2.push_back(Point(2100, 1805));

     boost::polygon::set_points(poly2, pts2.begin(), pts2.end());

     polySet2 += poly2;
     polySetResult2 += polySet2+100;
 For bug one,

 current result : { 1000 4336, 1000 1000, 5300 1000, 5300 4986, 4950 5336,
 4950 4950, 1850 4950, 1850 5186}

 correct result : { 1000 4336, 1000 1000, 5300 1000, 5300 4950, 1850 4950,
 1850 5186}

 For bug two, the result is a polygon with hole. However, I think there
 shall be no hole in the result.

 Please check and thanks for your help.

 Regards,

 Jay Huang
 """

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/6063#comment:9>
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