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/usr/include/boost/geometry/algorithms/detail/equals/interface.hpp
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// Boost.Geometry (aka GGL, Generic Geometry Library) // Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands. // Copyright (c) 2008-2015 Bruno Lalande, Paris, France. // Copyright (c) 2009-2015 Mateusz Loskot, London, UK. // Copyright (c) 2014-2015 Adam Wulkiewicz, Lodz, Poland. // This file was modified by Oracle on 2014, 2015, 2016, 2017, 2019. // Modifications copyright (c) 2014-2019 Oracle and/or its affiliates. // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. // 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_EQUALS_INTERFACE_HPP #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_EQUALS_INTERFACE_HPP #include <cstddef> #include <boost/variant/apply_visitor.hpp> #include <boost/variant/static_visitor.hpp> #include <boost/variant/variant_fwd.hpp> #include <boost/geometry/core/coordinate_dimension.hpp> #include <boost/geometry/core/reverse_dispatch.hpp> #include <boost/geometry/geometries/concepts/check.hpp> #include <boost/geometry/algorithms/not_implemented.hpp> #include <boost/geometry/strategies/default_strategy.hpp> #include <boost/geometry/strategies/relate.hpp> namespace boost { namespace geometry { #ifndef DOXYGEN_NO_DISPATCH namespace dispatch { template < typename Geometry1, typename Geometry2, typename Tag1 = typename tag<Geometry1>::type, typename Tag2 = typename tag<Geometry2>::type, typename CastedTag1 = typename tag_cast<Tag1, pointlike_tag, linear_tag, areal_tag>::type, typename CastedTag2 = typename tag_cast<Tag2, pointlike_tag, linear_tag, areal_tag>::type, std::size_t DimensionCount = dimension<Geometry1>::type::value, bool Reverse = reverse_dispatch<Geometry1, Geometry2>::type::value > struct equals: not_implemented<Tag1, Tag2> {}; // If reversal is needed, perform it template < typename Geometry1, typename Geometry2, typename Tag1, typename Tag2, typename CastedTag1, typename CastedTag2, std::size_t DimensionCount > struct equals<Geometry1, Geometry2, Tag1, Tag2, CastedTag1, CastedTag2, DimensionCount, true> : equals<Geometry2, Geometry1, Tag2, Tag1, CastedTag2, CastedTag1, DimensionCount, false> { template <typename Strategy> static inline bool apply(Geometry1 const& g1, Geometry2 const& g2, Strategy const& strategy) { return equals < Geometry2, Geometry1, Tag2, Tag1, CastedTag2, CastedTag1, DimensionCount, false >::apply(g2, g1, strategy); } }; } // namespace dispatch #endif // DOXYGEN_NO_DISPATCH namespace resolve_strategy { struct equals { template <typename Geometry1, typename Geometry2, typename Strategy> static inline bool apply(Geometry1 const& geometry1, Geometry2 const& geometry2, Strategy const& strategy) { return dispatch::equals < Geometry1, Geometry2 >::apply(geometry1, geometry2, strategy); } template <typename Geometry1, typename Geometry2> static inline bool apply(Geometry1 const& geometry1, Geometry2 const& geometry2, default_strategy) { typedef typename strategy::relate::services::default_strategy < Geometry1, Geometry2 >::type strategy_type; return dispatch::equals < Geometry1, Geometry2 >::apply(geometry1, geometry2, strategy_type()); } }; } // namespace resolve_strategy namespace resolve_variant { template <typename Geometry1, typename Geometry2> struct equals { template <typename Strategy> static inline bool apply(Geometry1 const& geometry1, Geometry2 const& geometry2, Strategy const& strategy) { concepts::check_concepts_and_equal_dimensions < Geometry1 const, Geometry2 const >(); return resolve_strategy::equals ::apply(geometry1, geometry2, strategy); } }; template <BOOST_VARIANT_ENUM_PARAMS(typename T), typename Geometry2> struct equals<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>, Geometry2> { template <typename Strategy> struct visitor: static_visitor<bool> { Geometry2 const& m_geometry2; Strategy const& m_strategy; visitor(Geometry2 const& geometry2, Strategy const& strategy) : m_geometry2(geometry2) , m_strategy(strategy) {} template <typename Geometry1> inline bool operator()(Geometry1 const& geometry1) const { return equals<Geometry1, Geometry2> ::apply(geometry1, m_geometry2, m_strategy); } }; template <typename Strategy> static inline bool apply( boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry1, Geometry2 const& geometry2, Strategy const& strategy ) { return boost::apply_visitor(visitor<Strategy>(geometry2, strategy), geometry1); } }; template <typename Geometry1, BOOST_VARIANT_ENUM_PARAMS(typename T)> struct equals<Geometry1, boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> > { template <typename Strategy> struct visitor: static_visitor<bool> { Geometry1 const& m_geometry1; Strategy const& m_strategy; visitor(Geometry1 const& geometry1, Strategy const& strategy) : m_geometry1(geometry1) , m_strategy(strategy) {} template <typename Geometry2> inline bool operator()(Geometry2 const& geometry2) const { return equals<Geometry1, Geometry2> ::apply(m_geometry1, geometry2, m_strategy); } }; template <typename Strategy> static inline bool apply( Geometry1 const& geometry1, boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry2, Strategy const& strategy ) { return boost::apply_visitor(visitor<Strategy>(geometry1, strategy), geometry2); } }; template < BOOST_VARIANT_ENUM_PARAMS(typename T1), BOOST_VARIANT_ENUM_PARAMS(typename T2) > struct equals< boost::variant<BOOST_VARIANT_ENUM_PARAMS(T1)>, boost::variant<BOOST_VARIANT_ENUM_PARAMS(T2)> > { template <typename Strategy> struct visitor: static_visitor<bool> { Strategy const& m_strategy; visitor(Strategy const& strategy) : m_strategy(strategy) {} template <typename Geometry1, typename Geometry2> inline bool operator()(Geometry1 const& geometry1, Geometry2 const& geometry2) const { return equals<Geometry1, Geometry2> ::apply(geometry1, geometry2, m_strategy); } }; template <typename Strategy> static inline bool 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<Strategy>(strategy), geometry1, geometry2); } }; } // namespace resolve_variant /*! \brief \brief_check{are spatially equal} \details \details_check12{equals, is spatially equal}. Spatially equal means that the same point set is included. A box can therefore be spatially equal to a ring or a polygon, or a linestring can be spatially equal to a multi-linestring or a segment. This only works theoretically, not all combinations are implemented yet. \ingroup equals \tparam Geometry1 \tparam_geometry \tparam Geometry2 \tparam_geometry \tparam Strategy \tparam_strategy{Equals} \param geometry1 \param_geometry \param geometry2 \param_geometry \param strategy \param_strategy{equals} \return \return_check2{are spatially equal} \qbk{distinguish,with strategy} \qbk{[include reference/algorithms/equals.qbk]} */ template <typename Geometry1, typename Geometry2, typename Strategy> inline bool equals(Geometry1 const& geometry1, Geometry2 const& geometry2, Strategy const& strategy) { return resolve_variant::equals < Geometry1, Geometry2 >::apply(geometry1, geometry2, strategy); } /*! \brief \brief_check{are spatially equal} \details \details_check12{equals, is spatially equal}. Spatially equal means that the same point set is included. A box can therefore be spatially equal to a ring or a polygon, or a linestring can be spatially equal to a multi-linestring or a segment. This only works theoretically, not all combinations are implemented yet. \ingroup equals \tparam Geometry1 \tparam_geometry \tparam Geometry2 \tparam_geometry \param geometry1 \param_geometry \param geometry2 \param_geometry \return \return_check2{are spatially equal} \qbk{[include reference/algorithms/equals.qbk]} */ template <typename Geometry1, typename Geometry2> inline bool equals(Geometry1 const& geometry1, Geometry2 const& geometry2) { return resolve_variant::equals<Geometry1, Geometry2> ::apply(geometry1, geometry2, default_strategy()); } }} // namespace boost::geometry #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_EQUALS_INTERFACE_HPP
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