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Diffstat (limited to 'boost/geometry/algorithms/detail/equals/interface.hpp')
| -rw-r--r-- | boost/geometry/algorithms/detail/equals/interface.hpp | 317 |
1 files changed, 317 insertions, 0 deletions
diff --git a/boost/geometry/algorithms/detail/equals/interface.hpp b/boost/geometry/algorithms/detail/equals/interface.hpp new file mode 100644 index 0000000000..eacf95e9fe --- /dev/null +++ b/boost/geometry/algorithms/detail/equals/interface.hpp @@ -0,0 +1,317 @@ +// 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. +// Modifications copyright (c) 2014-2017 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, + 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, + std::size_t DimensionCount +> +struct equals<Geometry1, Geometry2, Tag1, Tag2, DimensionCount, true> + : equals<Geometry2, Geometry1, Tag2, Tag1, DimensionCount, false> +{ + template <typename Strategy> + static inline bool apply(Geometry1 const& g1, Geometry2 const& g2, Strategy const& strategy) + { + return equals + < + Geometry2, Geometry1, + Tag2, Tag1, + 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 + |