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relation
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/usr/include/boost/geometry/algorithms/detail/relation/interface.hpp
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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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