strategies/convex_hull/spherical.hpp

0001 // Boost.Geometry
0002
0003 // Copyright (c) 2020-2023, Oracle and/or its affiliates.
0004
0005 // Contributed and/or modified by Vissarion Fysikopoulos, on behalf of Oracle
0006 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
0007
0008 // Licensed under the Boost Software License version 1.0.
0009 // http://www.boost.org/users/license.html
0010
0011 #ifndef BOOST_GEOMETRY_STRATEGIES_CONVEX_HULL_SPHERICAL_HPP
0012 #define BOOST_GEOMETRY_STRATEGIES_CONVEX_HULL_SPHERICAL_HPP
0013
0014
0015 #include <boost/geometry/strategies/convex_hull/services.hpp>
0016 #include <boost/geometry/strategies/compare.hpp>
0017 #include <boost/geometry/strategies/detail.hpp>
0018 #include <boost/geometry/strategies/spherical/point_in_point.hpp>
0019 #include <boost/geometry/strategies/spherical/ssf.hpp>
0020
0021 #include <boost/geometry/util/type_traits.hpp>
0022
0023
0024 namespace boost { namespace geometry
0025 {
0026
0027 namespace strategies { namespace convex_hull
0028 {
0029
0030 template <typename CalculationType = void>
0031 class spherical : public strategies::detail::spherical_base<void>
0032 {
0033 public:
0034     template <typename Geometry1, typename Geometry2>
0035     static auto relate(Geometry1 const&, Geometry2 const&,
0036                        std::enable_if_t
0037                             <
0038                                 util::is_pointlike<Geometry1>::value
0039                              && util::is_pointlike<Geometry2>::value
0040                             > * = nullptr)
0041     {
0042         return strategy::within::spherical_point_point();
0043     }
0044
0045     static auto side()
0046     {
0047         return strategy::side::spherical_side_formula<CalculationType>();
0048     }
0049
0050     template <typename ComparePolicy, typename EqualsPolicy>
0051     using compare_type = typename strategy::compare::spherical
0052         <
0053             ComparePolicy,
0054             EqualsPolicy,
0055             -1
0056         >;
0057 };
0058
0059 namespace services
0060 {
0061
0062 template <typename Geometry>
0063 struct default_strategy<Geometry, spherical_equatorial_tag>
0064 {
0065     using type = strategies::convex_hull::spherical<>;
0066 };
0067
0068 } // namespace services
0069
0070 }} // namespace strategies::convex_hull
0071
0072 }} // namespace boost::geometry
0073
0074 #endif // BOOST_GEOMETRY_STRATEGIES_CONVEX_HULL_SPHERICAL_HPP