]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
1 | // Boost.Geometry (aka GGL, Generic Geometry Library) |
2 | ||
3 | // Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands. | |
4 | ||
5 | // This file was modified by Oracle on 2013, 2014, 2015. | |
6 | // Modifications copyright (c) 2013-2015 Oracle and/or its affiliates. | |
7 | ||
8 | // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle | |
9 | ||
10 | // Use, modification and distribution is subject to the Boost Software License, | |
11 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
12 | // http://www.boost.org/LICENSE_1_0.txt) | |
13 | ||
14 | #ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_RELATION_INTERFACE_HPP | |
15 | #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_RELATION_INTERFACE_HPP | |
16 | ||
17 | ||
18 | #include <boost/geometry/algorithms/detail/relate/interface.hpp> | |
19 | ||
20 | ||
21 | namespace boost { namespace geometry | |
22 | { | |
23 | ||
24 | #ifndef DOXYGEN_NO_DETAIL | |
25 | namespace detail { namespace relate | |
26 | { | |
27 | ||
28 | template <typename Geometry1, typename Geometry2> | |
29 | struct result_handler_type<Geometry1, Geometry2, geometry::de9im::matrix, false> | |
30 | { | |
31 | typedef matrix_handler<geometry::de9im::matrix> type; | |
32 | }; | |
33 | ||
34 | ||
35 | }} // namespace detail::relate | |
36 | #endif // DOXYGEN_NO_DETAIL | |
37 | ||
38 | ||
39 | namespace resolve_variant | |
40 | { | |
41 | ||
42 | template <typename Geometry1, typename Geometry2> | |
43 | struct relation | |
44 | { | |
45 | template <typename Matrix> | |
46 | static inline Matrix apply(Geometry1 const& geometry1, | |
47 | Geometry2 const& geometry2) | |
48 | { | |
49 | concepts::check<Geometry1 const>(); | |
50 | concepts::check<Geometry2 const>(); | |
51 | assert_dimension_equal<Geometry1, Geometry2>(); | |
52 | ||
53 | typename detail::relate::result_handler_type | |
54 | < | |
55 | Geometry1, | |
56 | Geometry2, | |
57 | Matrix | |
58 | >::type handler; | |
59 | ||
60 | dispatch::relate | |
61 | < | |
62 | Geometry1, | |
63 | Geometry2 | |
64 | >::apply(geometry1, geometry2, handler); | |
65 | ||
66 | return handler.result(); | |
67 | } | |
68 | }; | |
69 | ||
70 | template <BOOST_VARIANT_ENUM_PARAMS(typename T), typename Geometry2> | |
71 | struct relation<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>, Geometry2> | |
72 | { | |
73 | template <typename Matrix> | |
74 | struct visitor : boost::static_visitor<Matrix> | |
75 | { | |
76 | Geometry2 const& m_geometry2; | |
77 | ||
78 | visitor(Geometry2 const& geometry2) | |
79 | : m_geometry2(geometry2) {} | |
80 | ||
81 | template <typename Geometry1> | |
82 | Matrix operator()(Geometry1 const& geometry1) const | |
83 | { | |
84 | return relation<Geometry1, Geometry2> | |
85 | ::template apply<Matrix>(geometry1, m_geometry2); | |
86 | } | |
87 | }; | |
88 | ||
89 | template <typename Matrix> | |
90 | static inline Matrix | |
91 | apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry1, | |
92 | Geometry2 const& geometry2) | |
93 | { | |
94 | return boost::apply_visitor(visitor<Matrix>(geometry2), geometry1); | |
95 | } | |
96 | }; | |
97 | ||
98 | template <typename Geometry1, BOOST_VARIANT_ENUM_PARAMS(typename T)> | |
99 | struct relation<Geometry1, boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> > | |
100 | { | |
101 | template <typename Matrix> | |
102 | struct visitor : boost::static_visitor<Matrix> | |
103 | { | |
104 | Geometry1 const& m_geometry1; | |
105 | ||
106 | visitor(Geometry1 const& geometry1) | |
107 | : m_geometry1(geometry1) {} | |
108 | ||
109 | template <typename Geometry2> | |
110 | Matrix operator()(Geometry2 const& geometry2) const | |
111 | { | |
112 | return relation<Geometry1, Geometry2> | |
113 | ::template apply<Matrix>(m_geometry1, geometry2); | |
114 | } | |
115 | }; | |
116 | ||
117 | template <typename Matrix> | |
118 | static inline Matrix | |
119 | apply(Geometry1 const& geometry1, | |
120 | boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry2) | |
121 | { | |
122 | return boost::apply_visitor(visitor<Matrix>(geometry1), geometry2); | |
123 | } | |
124 | }; | |
125 | ||
126 | template | |
127 | < | |
128 | BOOST_VARIANT_ENUM_PARAMS(typename T1), | |
129 | BOOST_VARIANT_ENUM_PARAMS(typename T2) | |
130 | > | |
131 | struct relation | |
132 | < | |
133 | boost::variant<BOOST_VARIANT_ENUM_PARAMS(T1)>, | |
134 | boost::variant<BOOST_VARIANT_ENUM_PARAMS(T2)> | |
135 | > | |
136 | { | |
137 | template <typename Matrix> | |
138 | struct visitor : boost::static_visitor<Matrix> | |
139 | { | |
140 | template <typename Geometry1, typename Geometry2> | |
141 | Matrix operator()(Geometry1 const& geometry1, | |
142 | Geometry2 const& geometry2) const | |
143 | { | |
144 | return relation<Geometry1, Geometry2> | |
145 | ::template apply<Matrix>(geometry1, geometry2); | |
146 | } | |
147 | }; | |
148 | ||
149 | template <typename Matrix> | |
150 | static inline Matrix | |
151 | apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T1)> const& geometry1, | |
152 | boost::variant<BOOST_VARIANT_ENUM_PARAMS(T2)> const& geometry2) | |
153 | { | |
154 | return boost::apply_visitor(visitor<Matrix>(), geometry1, geometry2); | |
155 | } | |
156 | }; | |
157 | ||
158 | } // namespace resolve_variant | |
159 | ||
160 | ||
161 | /*! | |
162 | \brief Calculates the relation between a pair of geometries as defined in DE-9IM. | |
163 | \ingroup relation | |
164 | \tparam Geometry1 \tparam_geometry | |
165 | \tparam Geometry2 \tparam_geometry | |
166 | \param geometry1 \param_geometry | |
167 | \param geometry2 \param_geometry | |
168 | \return The DE-9IM matrix expressing the relation between geometries. | |
169 | ||
170 | \qbk{[include reference/algorithms/relation.qbk]} | |
171 | */ | |
172 | template <typename Geometry1, typename Geometry2> | |
173 | inline de9im::matrix relation(Geometry1 const& geometry1, | |
174 | Geometry2 const& geometry2) | |
175 | { | |
176 | return resolve_variant::relation | |
177 | < | |
178 | Geometry1, | |
179 | Geometry2 | |
180 | >::template apply<de9im::matrix>(geometry1, geometry2); | |
181 | } | |
182 | ||
183 | ||
184 | }} // namespace boost::geometry | |
185 | ||
186 | #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_RELATE_INTERFACE_HPP |