1 // Boost.Geometry (aka GGL, Generic Geometry Library)
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.
8 // This file was modified by Oracle on 2013-2014.
9 // Modifications copyright (c) 2013-2014, Oracle and/or its affiliates.
11 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
12 // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
14 // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
15 // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
17 // Use, modification and distribution is subject to the Boost Software License,
18 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
19 // http://www.boost.org/LICENSE_1_0.txt)
21 #ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISJOINT_INTERFACE_HPP
22 #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISJOINT_INTERFACE_HPP
26 #include <boost/variant/apply_visitor.hpp>
27 #include <boost/variant/static_visitor.hpp>
28 #include <boost/variant/variant_fwd.hpp>
30 #include <boost/geometry/geometries/concepts/check.hpp>
32 #include <boost/geometry/algorithms/dispatch/disjoint.hpp>
35 namespace boost { namespace geometry
39 #ifndef DOXYGEN_NO_DISPATCH
44 // If reversal is needed, perform it
47 typename Geometry1, typename Geometry2,
48 std::size_t DimensionCount,
49 typename Tag1, typename Tag2
51 struct disjoint<Geometry1, Geometry2, DimensionCount, Tag1, Tag2, true>
53 static inline bool apply(Geometry1 const& g1, Geometry2 const& g2)
65 } // namespace dispatch
66 #endif // DOXYGEN_NO_DISPATCH
69 namespace resolve_variant {
71 template <typename Geometry1, typename Geometry2>
74 static inline bool apply(Geometry1 const& geometry1, Geometry2 const& geometry2)
76 concepts::check_concepts_and_equal_dimensions
82 return dispatch::disjoint<Geometry1, Geometry2>::apply(geometry1, geometry2);
86 template <BOOST_VARIANT_ENUM_PARAMS(typename T), typename Geometry2>
87 struct disjoint<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>, Geometry2>
89 struct visitor: boost::static_visitor<bool>
91 Geometry2 const& m_geometry2;
93 visitor(Geometry2 const& geometry2): m_geometry2(geometry2) {}
95 template <typename Geometry1>
96 bool operator()(Geometry1 const& geometry1) const
98 return disjoint<Geometry1, Geometry2>::apply(geometry1, m_geometry2);
103 apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry1,
104 Geometry2 const& geometry2)
106 return boost::apply_visitor(visitor(geometry2), geometry1);
110 template <typename Geometry1, BOOST_VARIANT_ENUM_PARAMS(typename T)>
111 struct disjoint<Geometry1, boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> >
113 struct visitor: boost::static_visitor<bool>
115 Geometry1 const& m_geometry1;
117 visitor(Geometry1 const& geometry1): m_geometry1(geometry1) {}
119 template <typename Geometry2>
120 bool operator()(Geometry2 const& geometry2) const
122 return disjoint<Geometry1, Geometry2>::apply(m_geometry1, geometry2);
127 apply(Geometry1 const& geometry1,
128 boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry2)
130 return boost::apply_visitor(visitor(geometry1), geometry2);
135 BOOST_VARIANT_ENUM_PARAMS(typename T1),
136 BOOST_VARIANT_ENUM_PARAMS(typename T2)
139 boost::variant<BOOST_VARIANT_ENUM_PARAMS(T1)>,
140 boost::variant<BOOST_VARIANT_ENUM_PARAMS(T2)>
143 struct visitor: boost::static_visitor<bool>
145 template <typename Geometry1, typename Geometry2>
146 bool operator()(Geometry1 const& geometry1,
147 Geometry2 const& geometry2) const
149 return disjoint<Geometry1, Geometry2>::apply(geometry1, geometry2);
154 apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T1)> const& geometry1,
155 boost::variant<BOOST_VARIANT_ENUM_PARAMS(T2)> const& geometry2)
157 return boost::apply_visitor(visitor(), geometry1, geometry2);
161 } // namespace resolve_variant
166 \brief \brief_check2{are disjoint}
168 \tparam Geometry1 \tparam_geometry
169 \tparam Geometry2 \tparam_geometry
170 \param geometry1 \param_geometry
171 \param geometry2 \param_geometry
172 \return \return_check2{are disjoint}
174 \qbk{[include reference/algorithms/disjoint.qbk]}
176 template <typename Geometry1, typename Geometry2>
177 inline bool disjoint(Geometry1 const& geometry1,
178 Geometry2 const& geometry2)
180 return resolve_variant::disjoint<Geometry1, Geometry2>::apply(geometry1, geometry2);
184 }} // namespace boost::geometry
187 #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISJOINT_INTERFACE_HPP