boost/geometry/strategies/geographic/io.hpp

   1 // Boost.Geometry
   2
   3 // Copyright (c) 2019, Oracle and/or its affiliates.
   4
   5 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
   6
   7 // Licensed under the Boost Software License version 1.0.
   8 // http://www.boost.org/users/license.html
   9
  10 #ifndef BOOST_GEOMETRY_EXTENSIONS_STRATEGIES_GEOGRAPHIC_IO_HPP
  11 #define BOOST_GEOMETRY_EXTENSIONS_STRATEGIES_GEOGRAPHIC_IO_HPP
  12
  13
  14 #include <boost/geometry/strategies/io.hpp>
  15
  16 #include <boost/geometry/strategies/geographic/point_order.hpp>
  17 #include <boost/geometry/strategies/geographic/point_in_poly_winding.hpp>
  18
  19
  20 namespace boost { namespace geometry
  21 {
  22
  23 namespace strategy { namespace io
  24 {
  25
  26 template
  27     <
  28         typename FormulaPolicy = strategy::andoyer,
  29         typename Spheroid = srs::spheroid<double>,
  30         typename CalculationType = void
  31     >
  32 struct geographic
  33 {
  34     typedef strategy::point_order::geographic
  35         <
  36             FormulaPolicy,
  37             Spheroid,
  38             CalculationType
  39         > point_order_strategy_type;
  40
  41     point_order_strategy_type get_point_order_strategy() const
  42     {
  43         return point_order_strategy_type(m_spheroid);
  44     }
  45
  46     template <typename Geometry1, typename Geometry2>
  47     struct point_in_geometry_strategy
  48     {
  49         typedef strategy::within::geographic_winding
  50             <
  51                 typename point_type<Geometry1>::type,
  52                 typename point_type<Geometry2>::type,
  53                 FormulaPolicy,
  54                 Spheroid,
  55                 CalculationType
  56             > type;
  57     };
  58
  59     template <typename Geometry1, typename Geometry2>
  60     typename point_in_geometry_strategy<Geometry1, Geometry2>::type
  61         get_point_in_geometry_strategy() const
  62     {
  63         typedef typename point_in_geometry_strategy
  64             <
  65                 Geometry1, Geometry2
  66             >::type strategy_type;
  67         return strategy_type(m_spheroid);
  68     }
  69
  70     geographic()
  71     {}
  72
  73     geographic(Spheroid const& spheroid)
  74         : m_spheroid(spheroid)
  75     {}
  76
  77 private:
  78     Spheroid m_spheroid;
  79 };
  80
  81 namespace services
  82 {
  83
  84 template <>
  85 struct default_strategy<geographic_tag>
  86 {
  87     typedef geographic<> type;
  88 };
  89
  90 } // namespace services
  91
  92 }} // namespace strategy::io
  93
  94 }} // namespace boost::geometry
  95
  96 #endif // BOOST_GEOMETRY_EXTENSIONS_STRATEGIES_GEOGRAPHIC_IO_HPP