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1 | // Boost.Geometry (aka GGL, Generic Geometry Library) |
2 | ||
3 | // Copyright (c) 2007-2014 Barend Gehrels, Amsterdam, the Netherlands. | |
4 | // Copyright (c) 2008-2014 Bruno Lalande, Paris, France. | |
5 | // Copyright (c) 2009-2014 Mateusz Loskot, London, UK. | |
6 | // Copyright (c) 2013-2014 Adam Wulkiewicz, Lodz, Poland. | |
7 | ||
8 | // This file was modified by Oracle on 2014. | |
9 | // Modifications copyright (c) 2014, Oracle and/or its affiliates. | |
10 | ||
11 | // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle | |
12 | ||
13 | // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library | |
14 | // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. | |
15 | ||
16 | // Use, modification and distribution is subject to the Boost Software License, | |
17 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
18 | // http://www.boost.org/LICENSE_1_0.txt) | |
19 | ||
20 | #ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_DEFAULT_STRATEGIES_HPP | |
21 | #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_DEFAULT_STRATEGIES_HPP | |
22 | ||
23 | #include <boost/geometry/core/cs.hpp> | |
24 | #include <boost/geometry/core/tag.hpp> | |
25 | #include <boost/geometry/core/tag_cast.hpp> | |
26 | #include <boost/geometry/core/tags.hpp> | |
27 | #include <boost/geometry/core/point_type.hpp> | |
28 | #include <boost/geometry/core/reverse_dispatch.hpp> | |
29 | ||
30 | #include <boost/geometry/strategies/distance.hpp> | |
31 | ||
32 | ||
33 | namespace boost { namespace geometry | |
34 | { | |
35 | ||
36 | #ifndef DOXYGEN_NO_DETAIL | |
37 | namespace detail { namespace distance | |
38 | { | |
39 | ||
40 | ||
41 | ||
42 | // Helper metafunction for default strategy retrieval | |
43 | template | |
44 | < | |
45 | typename Geometry1, | |
46 | typename Geometry2 = Geometry1, | |
47 | typename Tag1 = typename tag_cast | |
48 | < | |
49 | typename tag<Geometry1>::type, pointlike_tag | |
50 | >::type, | |
51 | typename Tag2 = typename tag_cast | |
52 | < | |
53 | typename tag<Geometry2>::type, pointlike_tag | |
54 | >::type, | |
55 | bool Reverse = geometry::reverse_dispatch<Geometry1, Geometry2>::type::value | |
56 | > | |
57 | struct default_strategy | |
58 | : strategy::distance::services::default_strategy | |
59 | < | |
60 | point_tag, segment_tag, | |
61 | typename point_type<Geometry1>::type, | |
62 | typename point_type<Geometry2>::type | |
63 | > | |
64 | {}; | |
65 | ||
66 | template | |
67 | < | |
68 | typename Geometry1, | |
69 | typename Geometry2, | |
70 | typename Tag1, | |
71 | typename Tag2 | |
72 | > | |
73 | struct default_strategy<Geometry1, Geometry2, Tag1, Tag2, true> | |
74 | : default_strategy<Geometry2, Geometry1, Tag2, Tag1, false> | |
75 | {}; | |
76 | ||
77 | ||
78 | template <typename Pointlike1, typename Pointlike2> | |
79 | struct default_strategy | |
80 | < | |
81 | Pointlike1, Pointlike2, | |
82 | pointlike_tag, pointlike_tag, false | |
83 | > : strategy::distance::services::default_strategy | |
84 | < | |
85 | point_tag, point_tag, | |
86 | typename point_type<Pointlike1>::type, | |
87 | typename point_type<Pointlike2>::type | |
88 | > | |
89 | {}; | |
90 | ||
91 | ||
92 | template <typename Pointlike, typename Box> | |
93 | struct default_strategy<Pointlike, Box, pointlike_tag, box_tag, false> | |
94 | : strategy::distance::services::default_strategy | |
95 | < | |
96 | point_tag, box_tag, | |
97 | typename point_type<Pointlike>::type, | |
98 | typename point_type<Box>::type | |
99 | > | |
100 | {}; | |
101 | ||
102 | ||
103 | template <typename Box1, typename Box2> | |
104 | struct default_strategy<Box1, Box2, box_tag, box_tag, false> | |
105 | : strategy::distance::services::default_strategy | |
106 | < | |
107 | box_tag, box_tag, | |
108 | typename point_type<Box1>::type, | |
109 | typename point_type<Box2>::type | |
110 | > | |
111 | {}; | |
112 | ||
92f5a8d4 TL |
113 | template <typename Linear, typename Box> |
114 | struct default_strategy<Linear, Box, segment_tag, box_tag, false> | |
115 | : strategy::distance::services::default_strategy | |
116 | < | |
117 | segment_tag, box_tag, | |
118 | typename point_type<Linear>::type, | |
119 | typename point_type<Box>::type | |
120 | > | |
121 | {}; | |
122 | ||
123 | template <typename Linear, typename Box> | |
124 | struct default_strategy<Linear, Box, linear_tag, box_tag, false> | |
125 | : strategy::distance::services::default_strategy | |
126 | < | |
127 | segment_tag, box_tag, | |
128 | typename point_type<Linear>::type, | |
129 | typename point_type<Box>::type | |
130 | > | |
131 | {}; | |
132 | ||
7c673cae FG |
133 | |
134 | ||
135 | // Helper metafunction for default point-segment strategy retrieval | |
136 | template <typename Geometry1, typename Geometry2, typename Strategy> | |
137 | struct default_ps_strategy | |
138 | : strategy::distance::services::default_strategy | |
139 | < | |
140 | point_tag, segment_tag, | |
141 | typename point_type<Geometry1>::type, | |
142 | typename point_type<Geometry2>::type, | |
143 | typename cs_tag<typename point_type<Geometry1>::type>::type, | |
144 | typename cs_tag<typename point_type<Geometry2>::type>::type, | |
145 | Strategy | |
146 | > | |
147 | {}; | |
148 | ||
149 | ||
150 | ||
151 | }} // namespace detail::distance | |
152 | #endif // DOXYGEN_NO_DETAIL | |
153 | ||
154 | }} // namespace boost::geometry | |
155 | ||
156 | ||
157 | #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_DEFAULT_STRATEGIES_HPP |