]>
Commit | Line | Data |
---|---|---|
20effc67 TL |
1 | // Boost.Geometry |
2 | ||
1e59de90 | 3 | // Copyright (c) 2020-2021, Oracle and/or its affiliates. |
20effc67 TL |
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_GEOGRAPHIC_HPP | |
11 | #define BOOST_GEOMETRY_STRATEGIES_AREA_GEOGRAPHIC_HPP | |
12 | ||
13 | ||
14 | #include <boost/geometry/strategy/geographic/area.hpp> | |
1e59de90 | 15 | #include <boost/geometry/strategy/geographic/area_box.hpp> |
20effc67 TL |
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 | |
28 | < | |
29 | typename FormulaPolicy = strategy::andoyer, | |
20effc67 TL |
30 | typename Spheroid = srs::spheroid<double>, |
31 | typename CalculationType = void | |
32 | > | |
1e59de90 TL |
33 | class geographic |
34 | : public strategies::detail::geographic_base<Spheroid> | |
20effc67 TL |
35 | { |
36 | using base_t = strategies::detail::geographic_base<Spheroid>; | |
37 | ||
38 | public: | |
1e59de90 | 39 | geographic() = default; |
20effc67 TL |
40 | |
41 | explicit geographic(Spheroid const& spheroid) | |
42 | : base_t(spheroid) | |
43 | {} | |
44 | ||
45 | template <typename Geometry> | |
1e59de90 TL |
46 | auto area(Geometry const&, |
47 | std::enable_if_t<! util::is_box<Geometry>::value> * = nullptr) const | |
20effc67 TL |
48 | { |
49 | return strategy::area::geographic | |
50 | < | |
1e59de90 TL |
51 | FormulaPolicy, |
52 | strategy::default_order<FormulaPolicy>::value, | |
53 | Spheroid, CalculationType | |
54 | >(base_t::m_spheroid); | |
55 | } | |
56 | ||
57 | template <typename Geometry> | |
58 | auto area(Geometry const&, | |
59 | std::enable_if_t<util::is_box<Geometry>::value> * = nullptr) const | |
60 | { | |
61 | return strategy::area::geographic_box | |
62 | < | |
63 | Spheroid, CalculationType | |
20effc67 TL |
64 | >(base_t::m_spheroid); |
65 | } | |
66 | }; | |
67 | ||
68 | ||
69 | namespace services | |
70 | { | |
71 | ||
72 | template <typename Geometry> | |
73 | struct default_strategy<Geometry, geographic_tag> | |
74 | { | |
75 | using type = strategies::area::geographic<>; | |
76 | }; | |
77 | ||
78 | ||
79 | template <typename FP, std::size_t SO, typename S, typename CT> | |
80 | struct strategy_converter<strategy::area::geographic<FP, SO, S, CT> > | |
81 | { | |
1e59de90 TL |
82 | struct altered_strategy |
83 | : strategies::area::geographic<FP, S, CT> | |
84 | { | |
85 | explicit altered_strategy(S const& spheroid) | |
86 | : strategies::area::geographic<FP, S, CT>(spheroid) | |
87 | {} | |
88 | ||
89 | using strategies::area::geographic<FP, S, CT>::area; | |
90 | ||
91 | template <typename Geometry> | |
92 | auto area(Geometry const&, | |
93 | std::enable_if_t<! util::is_box<Geometry>::value> * = nullptr) const | |
94 | { | |
95 | return strategy::area::geographic<FP, SO, S, CT>(this->m_spheroid); | |
96 | } | |
97 | }; | |
98 | ||
20effc67 TL |
99 | static auto get(strategy::area::geographic<FP, SO, S, CT> const& strategy) |
100 | { | |
1e59de90 | 101 | return altered_strategy(strategy.model()); |
20effc67 TL |
102 | } |
103 | }; | |
104 | ||
105 | } // namespace services | |
106 | ||
107 | }} // namespace strategies::area | |
108 | ||
109 | }} // namespace boost::geometry | |
110 | ||
111 | #endif // BOOST_GEOMETRY_STRATEGIES_AREA_GEOGRAPHIC_HPP |