boost/geometry/strategies/intersection_strategies.hpp

   1 // Boost.Geometry (aka GGL, Generic Geometry Library)
   2
   3 // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
   4
   5 // This file was modified by Oracle on 2016, 2017.
   6 // Modifications copyright (c) 2016-2017, Oracle and/or its affiliates.
   7 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
   8
   9 // Use, modification and distribution is subject to the Boost Software License,
  10 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  11 // http://www.boost.org/LICENSE_1_0.txt)
  12
  13 #ifndef BOOST_GEOMETRY_STRATEGIES_INTERSECTION_HPP
  14 #define BOOST_GEOMETRY_STRATEGIES_INTERSECTION_HPP
  15
  16
  17 #include <boost/geometry/core/point_type.hpp>
  18 #include <boost/geometry/geometries/segment.hpp>
  19
  20 #include <boost/geometry/policies/relate/intersection_points.hpp>
  21 #include <boost/geometry/policies/relate/direction.hpp>
  22 #include <boost/geometry/policies/relate/tupled.hpp>
  23
  24 #include <boost/geometry/strategies/intersection.hpp>
  25 #include <boost/geometry/strategies/intersection_result.hpp>
  26 #include <boost/geometry/strategies/side.hpp>
  27
  28 #include <boost/geometry/strategies/cartesian/intersection.hpp>
  29 #include <boost/geometry/strategies/cartesian/side_by_triangle.hpp>
  30 #include <boost/geometry/strategies/spherical/intersection.hpp>
  31 #include <boost/geometry/strategies/spherical/ssf.hpp>
  32
  33 #include <boost/geometry/policies/robustness/segment_ratio_type.hpp>
  34
  35
  36 namespace boost { namespace geometry
  37 {
  38
  39
  40 /*!
  41 \brief "compound strategy", containing a segment-intersection-strategy
  42        and a side-strategy
  43  */
  44 template
  45 <
  46     typename Tag,
  47     typename Geometry1,
  48     typename Geometry2,
  49     typename IntersectionPoint,
  50     typename RobustPolicy,
  51     typename CalculationType = void
  52 >
  53 struct intersection_strategies
  54 {
  55 private :
  56     // for development BOOST_STATIC_ASSERT((! boost::is_same<RobustPolicy, void>::type::value));
  57
  58     typedef typename geometry::point_type<Geometry1>::type point1_type;
  59     typedef typename geometry::point_type<Geometry2>::type point2_type;
  60     typedef typename model::referring_segment<point1_type const> segment1_type;
  61     typedef typename model::referring_segment<point2_type const> segment2_type;
  62
  63     typedef segment_intersection_points
  64     <
  65         IntersectionPoint,
  66         typename detail::segment_ratio_type
  67         <
  68             IntersectionPoint, RobustPolicy
  69         >::type
  70     > ip_type;
  71
  72 public:
  73     typedef policies::relate::segments_tupled
  74         <
  75             policies::relate::segments_intersection_points
  76                 <
  77                     ip_type
  78                 > ,
  79             policies::relate::segments_direction
  80         > intersection_policy_type;
  81
  82     typedef typename strategy::intersection::services::default_strategy
  83             <
  84                 Tag,
  85                 CalculationType
  86             >::type segment_intersection_strategy_type;
  87
  88     typedef typename strategy::side::services::default_strategy
  89         <
  90             Tag,
  91             CalculationType
  92         >::type side_strategy_type;
  93
  94     typedef RobustPolicy rescale_policy_type;
  95 };
  96
  97
  98 }} // namespace boost::geometry
  99
 100
 101 #endif // BOOST_GEOMETRY_STRATEGIES_INTERSECTION_HPP