id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
6079	bug in polygonset::resize()	Jay Huang <yhuangza@…>		"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"	Bugs	closed	To Be Determined	None	Boost 1.47.0	Problem	duplicate	polygon resize