ceph/src/boost/boost/geometry/strategies/area/cartesian.hpp

   1 // Boost.Geometry
   2
   3 // Copyright (c) 2021, 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_STRATEGIES_AREA_CARTESIAN_HPP
  11 #define BOOST_GEOMETRY_STRATEGIES_AREA_CARTESIAN_HPP
  12
  13
  14 #include <boost/geometry/strategy/cartesian/area.hpp>
  15 #include <boost/geometry/strategy/cartesian/area_box.hpp>
  16
  17 #include <boost/geometry/strategies/area/services.hpp>
  18 #include <boost/geometry/strategies/detail.hpp>
  19
  20
  21 namespace boost { namespace geometry
  22 {
  23
  24 namespace strategies { namespace area
  25 {
  26
  27 template <typename CalculationType = void>
  28 struct cartesian : strategies::detail::cartesian_base
  29 {
  30     template <typename Geometry>
  31     static auto area(Geometry const&,
  32                      std::enable_if_t<! util::is_box<Geometry>::value> * = nullptr)
  33     {
  34         return strategy::area::cartesian<CalculationType>();
  35     }
  36
  37     template <typename Geometry>
  38     static auto area(Geometry const&,
  39                      std::enable_if_t<util::is_box<Geometry>::value> * = nullptr)
  40     {
  41         return strategy::area::cartesian_box<CalculationType>();
  42     }
  43 };
  44
  45
  46 namespace services
  47 {
  48
  49 template <typename Geometry>
  50 struct default_strategy<Geometry, cartesian_tag>
  51 {
  52     using type = strategies::area::cartesian<>;
  53 };
  54
  55
  56 template <typename CT>
  57 struct strategy_converter<strategy::area::cartesian<CT> >
  58 {
  59     static auto get(strategy::area::cartesian<CT> const&)
  60     {
  61         return strategies::area::cartesian<CT>();
  62     }
  63 };
  64
  65
  66 } // namespace services
  67
  68 }} // namespace strategies::area
  69
  70 }} // namespace boost::geometry
  71
  72 #endif // BOOST_GEOMETRY_STRATEGIES_AREA_CARTESIAN_HPP