[Boost-bugs] [Boost C++ Libraries] #12439: Problems with 180 and -180 meridian, using bg::cs::geographic<bg::degree>

Subject: [Boost-bugs] [Boost C++ Libraries] #12439: Problems with 180 and -180 meridian, using bg::cs::geographic<bg::degree>
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-09-06 19:13:54

#12439: Problems with 180 and -180 meridian, using bg::cs::geographic<bg::degree>
----------------------------------------+---------------------------
 Reporter:  ostroukhov@…                |      Owner:  barendgehrels
     Type:  Bugs                        |     Status:  new
Milestone:  To Be Determined            |  Component:  geometry
  Version:  Boost 1.61.0                |   Severity:  Problem
 Keywords:  geographic return_envelope  |
----------------------------------------+---------------------------
 While calculating the envelope:
 {{{

 #include <boost/range.hpp>
 #include <boost/iterator/iterator_facade.hpp>
 #include <boost/geometry/geometries/concepts/ring_concept.hpp>
 #include <boost/geometry/geometries/register/ring.hpp>
 #include <boost/geometry.hpp>
 #include <boost/geometry/geometries/geometries.hpp>


 namespace bg = boost::geometry;
 namespace bgi = boost::geometry::index;

     typedef bg::model::point<double, 2, bg::cs::geographic<
             bg::degree>> point_t;
         typedef bg::model::ring<point_t> ring_t;

     ring_t ring {{-180, 0}, {180, 0}, {180, -85}, {-180, -85}, {-180, 0}};

     auto aabb = bg::return_envelope< bg::model::box<point_t> >(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

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/12439>
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