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- // Boost.Geometry (aka GGL, Generic Geometry Library)
- // Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands.
- // This file was modified by Oracle on 2013, 2014, 2015, 2017.
- // Modifications copyright (c) 2013-2017 Oracle and/or its affiliates.
- // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
- // Use, modification and distribution is subject to the Boost Software License,
- // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt)
- #ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_RELATION_INTERFACE_HPP
- #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_RELATION_INTERFACE_HPP
- #include <boost/geometry/algorithms/detail/relate/interface.hpp>
- namespace boost { namespace geometry
- {
- #ifndef DOXYGEN_NO_DETAIL
- namespace detail { namespace relate
- {
- template <typename Geometry1, typename Geometry2>
- struct result_handler_type<Geometry1, Geometry2, geometry::de9im::matrix, false>
- {
- typedef matrix_handler<geometry::de9im::matrix> type;
- };
- }} // namespace detail::relate
- #endif // DOXYGEN_NO_DETAIL
- namespace resolve_variant
- {
- template <typename Geometry1, typename Geometry2>
- struct relation
- {
- template <typename Matrix, typename Strategy>
- static inline Matrix apply(Geometry1 const& geometry1,
- Geometry2 const& geometry2,
- Strategy const& strategy)
- {
- concepts::check<Geometry1 const>();
- concepts::check<Geometry2 const>();
- assert_dimension_equal<Geometry1, Geometry2>();
- typename detail::relate::result_handler_type
- <
- Geometry1,
- Geometry2,
- Matrix
- >::type handler;
- resolve_strategy::relate::apply(geometry1, geometry2, handler, strategy);
- return handler.result();
- }
- };
- template <BOOST_VARIANT_ENUM_PARAMS(typename T), typename Geometry2>
- struct relation<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>, Geometry2>
- {
- template <typename Matrix, typename Strategy>
- struct visitor : boost::static_visitor<Matrix>
- {
- Geometry2 const& m_geometry2;
- Strategy const& m_strategy;
- visitor(Geometry2 const& geometry2, Strategy const& strategy)
- : m_geometry2(geometry2), m_strategy(strategy) {}
- template <typename Geometry1>
- Matrix operator()(Geometry1 const& geometry1) const
- {
- return relation<Geometry1, Geometry2>
- ::template apply<Matrix>(geometry1, m_geometry2, m_strategy);
- }
- };
- template <typename Matrix, typename Strategy>
- static inline Matrix
- apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry1,
- Geometry2 const& geometry2,
- Strategy const& strategy)
- {
- return boost::apply_visitor(visitor<Matrix, Strategy>(geometry2, strategy), geometry1);
- }
- };
- template <typename Geometry1, BOOST_VARIANT_ENUM_PARAMS(typename T)>
- struct relation<Geometry1, boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> >
- {
- template <typename Matrix, typename Strategy>
- struct visitor : boost::static_visitor<Matrix>
- {
- Geometry1 const& m_geometry1;
- Strategy const& m_strategy;
- visitor(Geometry1 const& geometry1, Strategy const& strategy)
- : m_geometry1(geometry1), m_strategy(strategy) {}
- template <typename Geometry2>
- Matrix operator()(Geometry2 const& geometry2) const
- {
- return relation<Geometry1, Geometry2>
- ::template apply<Matrix>(m_geometry1, geometry2, m_strategy);
- }
- };
- template <typename Matrix, typename Strategy>
- static inline Matrix
- apply(Geometry1 const& geometry1,
- boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry2,
- Strategy const& strategy)
- {
- return boost::apply_visitor(visitor<Matrix, Strategy>(geometry1, strategy), geometry2);
- }
- };
- template
- <
- BOOST_VARIANT_ENUM_PARAMS(typename T1),
- BOOST_VARIANT_ENUM_PARAMS(typename T2)
- >
- struct relation
- <
- boost::variant<BOOST_VARIANT_ENUM_PARAMS(T1)>,
- boost::variant<BOOST_VARIANT_ENUM_PARAMS(T2)>
- >
- {
- template <typename Matrix, typename Strategy>
- struct visitor : boost::static_visitor<Matrix>
- {
- Strategy const& m_strategy;
- visitor(Strategy const& strategy)
- : m_strategy(strategy) {}
- template <typename Geometry1, typename Geometry2>
- Matrix operator()(Geometry1 const& geometry1,
- Geometry2 const& geometry2) const
- {
- return relation<Geometry1, Geometry2>
- ::template apply<Matrix>(geometry1, geometry2, m_strategy);
- }
- };
- template <typename Matrix, typename Strategy>
- static inline Matrix
- apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T1)> const& geometry1,
- boost::variant<BOOST_VARIANT_ENUM_PARAMS(T2)> const& geometry2,
- Strategy const& strategy)
- {
- return boost::apply_visitor(visitor<Matrix, Strategy>(strategy), geometry1, geometry2);
- }
- };
- } // namespace resolve_variant
- /*!
- \brief Calculates the relation between a pair of geometries as defined in DE-9IM.
- \ingroup relation
- \tparam Geometry1 \tparam_geometry
- \tparam Geometry2 \tparam_geometry
- \tparam Strategy \tparam_strategy{Relation}
- \param geometry1 \param_geometry
- \param geometry2 \param_geometry
- \param strategy \param_strategy{relation}
- \return The DE-9IM matrix expressing the relation between geometries.
- \qbk{distinguish,with strategy}
- \qbk{[include reference/algorithms/relation.qbk]}
- */
- template <typename Geometry1, typename Geometry2, typename Strategy>
- inline de9im::matrix relation(Geometry1 const& geometry1,
- Geometry2 const& geometry2,
- Strategy const& strategy)
- {
- return resolve_variant::relation
- <
- Geometry1,
- Geometry2
- >::template apply<de9im::matrix>(geometry1, geometry2, strategy);
- }
- /*!
- \brief Calculates the relation between a pair of geometries as defined in DE-9IM.
- \ingroup relation
- \tparam Geometry1 \tparam_geometry
- \tparam Geometry2 \tparam_geometry
- \param geometry1 \param_geometry
- \param geometry2 \param_geometry
- \return The DE-9IM matrix expressing the relation between geometries.
- \qbk{[include reference/algorithms/relation.qbk]}
- */
- template <typename Geometry1, typename Geometry2>
- inline de9im::matrix relation(Geometry1 const& geometry1,
- Geometry2 const& geometry2)
- {
- return resolve_variant::relation
- <
- Geometry1,
- Geometry2
- >::template apply<de9im::matrix>(geometry1, geometry2, default_strategy());
- }
- }} // namespace boost::geometry
- #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_RELATE_INTERFACE_HPP
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