id summary reporter owner description type status milestone component version severity resolution keywords cc 12439 Problems with 180 and -180 meridian, using bg::cs::geographic ostroukhov@… Barend Gehrels "While calculating the envelope: {{{ #include #include #include #include #include #include namespace bg = boost::geometry; namespace bgi = boost::geometry::index; typedef bg::model::point> point_t; typedef bg::model::ring ring_t; ring_t ring {{-180, 0}, {180, 0}, {180, -85}, {-180, -85}, {-180, 0}}; auto aabb = bg::return_envelope< bg::model::box >(ring); std::cout << ""max_corner lon ="" << aabb.max_corner().get<0>(); std::cout << ""min_corner lon ="" << aabb.min_corner().get<0>(); }}} It prints both max_corner and min_corner longitude as 180" Bugs new To Be Determined geometry Boost 1.61.0 Problem geographic return_envelope