id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
7813,Bug in boost::geometry::centroid with trivially small polygons,anonymous,Barend Gehrels,"If you try the following program, the returned centroid is outside the polygon.
This only happens with trivially small polygons.


{{{
#include <boost/geometry.hpp>
#include <boost/geometry/geometries/point_xy.hpp>
#include <boost/geometry/geometries/polygon.hpp>
#include <iostream>
#include <iomanip>

int main()
{
    typedef boost::geometry::model::d2::point_xy<double> point_type;
    typedef boost::geometry::model::polygon<point_type> polygon_type;

    polygon_type p;
    boost::geometry::read_wkt(""POLYGON((139.64436 35.856411,139.64436 35.856391,139.6444 35.856397,139.64439 35.856417,139.64436 35.856411))"", p);
    boost::geometry::correct(p);

    point_type centroid;
    boost::geometry::centroid(p, centroid);

    std::cout << std::fixed << std::setprecision(6) << boost::geometry::wkt(centroid) << std::endl;

    return 0;
}
}}}
",Bugs,closed,To Be Determined,geometry,Boost 1.52.0,Problem,wontfix,,