id summary reporter owner description type status milestone component version severity resolution keywords cc 7462 geometry::union_ yields degenerated results Danvil Barend Gehrels "The following data gives wrong results with geometry::union. {{{ float data1[][2] = {{0,0}, {-0.3681253195,0.9297761917}, {2.421203136,2.034152031}, {2.789328575,1.104375958}, {0,0}}; float data2[][2] = {{2.76143527,1.093332171}, {2.076887131,1.822299719}, {4.263789177,3.875944376}, {4.948337555,3.146976948}, {2.76143527,1.093332171}}; polygon_t p1, p2; boost::geometry::append(p1, data1); boost::geometry::append(p2, data2); std::vector output; boost::geometry::union_(p1, p2, output); }}} Please find attached the whole main file and program output." Bugs closed To Be Determined geometry Boost 1.48.0 Problem fixed