ceph/src/boost/libs/geometry/include/boost/geometry/strategies/concepts/segment_intersect_concept.hpp

   1 // Boost.Geometry (aka GGL, Generic Geometry Library)
   2
   3 // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
   4 // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
   5 // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
   6
   7 // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
   8 // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
   9
  10 // Use, modification and distribution is subject to the Boost Software License,
  11 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  12 // http://www.boost.org/LICENSE_1_0.txt)
  13
  14 #ifndef BOOST_GEOMETRY_STRATEGIES_CONCEPTS_SEGMENT_INTERSECT_CONCEPT_HPP
  15 #define BOOST_GEOMETRY_STRATEGIES_CONCEPTS_SEGMENT_INTERSECT_CONCEPT_HPP
  16
  17
  18 //NOT FINISHED!
  19
  20 #include <boost/concept_check.hpp>
  21
  22
  23 namespace boost { namespace geometry { namespace concepts
  24 {
  25
  26
  27 /*!
  28     \brief Checks strategy for segment intersection
  29     \ingroup segment_intersection
  30 */
  31 template <typename Strategy>
  32 class SegmentIntersectStrategy
  33 {
  34 #ifndef DOXYGEN_NO_CONCEPT_MEMBERS
  35
  36     // 1) must define return_type
  37     typedef typename Strategy::return_type return_type;
  38
  39     // 2) must define point_type (of segment points)
  40     //typedef typename Strategy::point_type point_type;
  41
  42     // 3) must define segment_type 1 and 2 (of segment points)
  43     typedef typename Strategy::segment_type1 segment_type1;
  44     typedef typename Strategy::segment_type2 segment_type2;
  45
  46
  47     struct check_methods
  48     {
  49         static void apply()
  50         {
  51             Strategy const* str;
  52
  53             return_type* rt;
  54             //point_type const* p;
  55             segment_type1 const* s1;
  56             segment_type2 const* s2;
  57
  58             // 4) must implement a method apply
  59             //    having two segments
  60             *rt = str->apply(*s1, *s2);
  61
  62         }
  63     };
  64
  65
  66 public :
  67     BOOST_CONCEPT_USAGE(SegmentIntersectStrategy)
  68     {
  69         check_methods::apply();
  70     }
  71 #endif
  72 };
  73
  74
  75
  76 }}} // namespace boost::geometry::concepts
  77
  78 #endif // BOOST_GEOMETRY_STRATEGIES_CONCEPTS_SEGMENT_INTERSECT_CONCEPT_HPP