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- // Boost.Geometry (aka GGL, Generic Geometry Library)
- // Copyright (c) 2007-2012 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_RELATE_INTERFACE_HPP
- #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_RELATE_INTERFACE_HPP
- #include <boost/type_traits/is_same.hpp>
- #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/tag.hpp>
- #include <boost/geometry/core/tags.hpp>
- #include <boost/geometry/core/topological_dimension.hpp>
- #include <boost/geometry/algorithms/detail/relate/de9im.hpp>
- #include <boost/geometry/algorithms/not_implemented.hpp>
- #include <boost/geometry/geometries/concepts/check.hpp>
- #include <boost/geometry/strategies/default_strategy.hpp>
- #include <boost/geometry/strategies/relate.hpp>
- namespace boost { namespace geometry {
- #ifndef DOXYGEN_NO_DETAIL
- namespace detail { namespace relate {
- // Those are used only to allow dispatch::relate to produce compile-time error
- template <typename Geometry,
- typename Tag = typename geometry::tag<Geometry>::type>
- struct is_supported_by_generic
- {
- static const bool value
- = boost::is_same<Tag, linestring_tag>::value
- || boost::is_same<Tag, multi_linestring_tag>::value
- || boost::is_same<Tag, ring_tag>::value
- || boost::is_same<Tag, polygon_tag>::value
- || boost::is_same<Tag, multi_polygon_tag>::value;
- };
- template <typename Geometry1,
- typename Geometry2,
- typename Tag1 = typename geometry::tag<Geometry1>::type,
- typename Tag2 = typename geometry::tag<Geometry2>::type>
- struct is_generic
- {
- static const bool value = is_supported_by_generic<Geometry1>::value
- && is_supported_by_generic<Geometry2>::value;
- };
- template <typename Point, typename Geometry, typename Tag>
- struct is_generic<Point, Geometry, point_tag, Tag>
- {
- static const bool value = is_supported_by_generic<Geometry>::value;
- };
- template <typename Geometry, typename Point, typename Tag>
- struct is_generic<Geometry, Point, Tag, point_tag>
- {
- static const bool value = is_supported_by_generic<Geometry>::value;
- };
- template <typename Point1, typename Point2>
- struct is_generic<Point1, Point2, point_tag, point_tag>
- {
- static const bool value = false;
- };
- }} // namespace detail::relate
- #endif // DOXYGEN_NO_DETAIL
- #ifndef DOXYGEN_NO_DISPATCH
- namespace dispatch {
- template <typename Geometry1,
- typename Geometry2,
- typename Tag1 = typename geometry::tag<Geometry1>::type,
- typename Tag2 = typename geometry::tag<Geometry2>::type,
- int TopDim1 = geometry::topological_dimension<Geometry1>::value,
- int TopDim2 = geometry::topological_dimension<Geometry2>::value,
- bool IsGeneric = detail::relate::is_generic<Geometry1, Geometry2>::value
- >
- struct relate : not_implemented<Tag1, Tag2>
- {};
- } // namespace dispatch
- #endif // DOXYGEN_NO_DISPATCH
- #ifndef DOXYGEN_NO_DETAIL
- namespace detail { namespace relate {
- template <typename Geometry1, typename Geometry2>
- struct interruption_enabled
- {
- static const bool value =
- dispatch::relate<Geometry1, Geometry2>::interruption_enabled;
- };
- template <typename Geometry1,
- typename Geometry2,
- typename Result,
- bool IsSequence = boost::mpl::is_sequence<Result>::value>
- struct result_handler_type
- : not_implemented<Result>
- {};
- template <typename Geometry1, typename Geometry2>
- struct result_handler_type<Geometry1, Geometry2, geometry::de9im::mask, false>
- {
- typedef mask_handler
- <
- geometry::de9im::mask,
- interruption_enabled
- <
- Geometry1,
- Geometry2
- >::value
- > type;
- };
- template <typename Geometry1, typename Geometry2, typename Head, typename Tail>
- struct result_handler_type<Geometry1, Geometry2, boost::tuples::cons<Head, Tail>, false>
- {
- typedef mask_handler
- <
- boost::tuples::cons<Head, Tail>,
- interruption_enabled
- <
- Geometry1,
- Geometry2
- >::value
- > type;
- };
- template <typename Geometry1, typename Geometry2,
- char II, char IB, char IE,
- char BI, char BB, char BE,
- char EI, char EB, char EE>
- struct result_handler_type
- <
- Geometry1,
- Geometry2,
- geometry::de9im::static_mask<II, IB, IE, BI, BB, BE, EI, EB, EE>,
- false
- >
- {
- typedef static_mask_handler
- <
- geometry::de9im::static_mask<II, IB, IE, BI, BB, BE, EI, EB, EE>,
- interruption_enabled
- <
- Geometry1,
- Geometry2
- >::value
- > type;
- };
- template <typename Geometry1, typename Geometry2, typename StaticSequence>
- struct result_handler_type<Geometry1, Geometry2, StaticSequence, true>
- {
- typedef static_mask_handler
- <
- StaticSequence,
- interruption_enabled
- <
- Geometry1,
- Geometry2
- >::value
- > type;
- };
- }} // namespace detail::relate
- #endif // DOXYGEN_NO_DETAIL
- namespace resolve_strategy {
- struct relate
- {
- template <typename Geometry1, typename Geometry2, typename ResultHandler, typename Strategy>
- static inline void apply(Geometry1 const& geometry1,
- Geometry2 const& geometry2,
- ResultHandler & handler,
- Strategy const& strategy)
- {
- dispatch::relate
- <
- Geometry1,
- Geometry2
- >::apply(geometry1, geometry2, handler, strategy);
- }
- template <typename Geometry1, typename Geometry2, typename ResultHandler>
- static inline void apply(Geometry1 const& geometry1,
- Geometry2 const& geometry2,
- ResultHandler & handler,
- default_strategy)
- {
- typedef typename strategy::relate::services::default_strategy
- <
- Geometry1,
- Geometry2
- >::type strategy_type;
-
- dispatch::relate
- <
- Geometry1,
- Geometry2
- >::apply(geometry1, geometry2, handler, strategy_type());
- }
- };
- } // resolve_strategy
- namespace resolve_variant {
- template <typename Geometry1, typename Geometry2>
- struct relate
- {
- template <typename Mask, typename Strategy>
- static inline bool apply(Geometry1 const& geometry1,
- Geometry2 const& geometry2,
- Mask const& mask,
- Strategy const& strategy)
- {
- concepts::check<Geometry1 const>();
- concepts::check<Geometry2 const>();
- assert_dimension_equal<Geometry1, Geometry2>();
- typename detail::relate::result_handler_type
- <
- Geometry1,
- Geometry2,
- Mask
- >::type handler(mask);
- resolve_strategy::relate::apply(geometry1, geometry2, handler, strategy);
- return handler.result();
- }
- };
- template <BOOST_VARIANT_ENUM_PARAMS(typename T), typename Geometry2>
- struct relate<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>, Geometry2>
- {
- template <typename Mask, typename Strategy>
- struct visitor : boost::static_visitor<bool>
- {
- Geometry2 const& m_geometry2;
- Mask const& m_mask;
- Strategy const& m_strategy;
- visitor(Geometry2 const& geometry2, Mask const& mask, Strategy const& strategy)
- : m_geometry2(geometry2), m_mask(mask), m_strategy(strategy) {}
- template <typename Geometry1>
- bool operator()(Geometry1 const& geometry1) const
- {
- return relate<Geometry1, Geometry2>
- ::apply(geometry1, m_geometry2, m_mask, m_strategy);
- }
- };
- template <typename Mask, typename Strategy>
- static inline bool
- apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry1,
- Geometry2 const& geometry2,
- Mask const& mask,
- Strategy const& strategy)
- {
- return boost::apply_visitor(visitor<Mask, Strategy>(geometry2, mask, strategy), geometry1);
- }
- };
- template <typename Geometry1, BOOST_VARIANT_ENUM_PARAMS(typename T)>
- struct relate<Geometry1, boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> >
- {
- template <typename Mask, typename Strategy>
- struct visitor : boost::static_visitor<bool>
- {
- Geometry1 const& m_geometry1;
- Mask const& m_mask;
- Strategy const& m_strategy;
- visitor(Geometry1 const& geometry1, Mask const& mask, Strategy const& strategy)
- : m_geometry1(geometry1), m_mask(mask), m_strategy(strategy) {}
- template <typename Geometry2>
- bool operator()(Geometry2 const& geometry2) const
- {
- return relate<Geometry1, Geometry2>
- ::apply(m_geometry1, geometry2, m_mask, m_strategy);
- }
- };
- template <typename Mask, typename Strategy>
- static inline bool
- apply(Geometry1 const& geometry1,
- boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry2,
- Mask const& mask,
- Strategy const& strategy)
- {
- return boost::apply_visitor(visitor<Mask, Strategy>(geometry1, mask, strategy), geometry2);
- }
- };
- template <
- BOOST_VARIANT_ENUM_PARAMS(typename T1),
- BOOST_VARIANT_ENUM_PARAMS(typename T2)
- >
- struct relate<
- boost::variant<BOOST_VARIANT_ENUM_PARAMS(T1)>,
- boost::variant<BOOST_VARIANT_ENUM_PARAMS(T2)>
- >
- {
- template <typename Mask, typename Strategy>
- struct visitor : boost::static_visitor<bool>
- {
- Mask const& m_mask;
- Strategy const& m_strategy;
- visitor(Mask const& mask, Strategy const& strategy)
- : m_mask(mask), m_strategy(strategy) {}
- template <typename Geometry1, typename Geometry2>
- bool operator()(Geometry1 const& geometry1,
- Geometry2 const& geometry2) const
- {
- return relate<Geometry1, Geometry2>
- ::apply(geometry1, geometry2, m_mask, m_strategy);
- }
- };
- template <typename Mask, typename Strategy>
- static inline bool
- apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T1)> const& geometry1,
- boost::variant<BOOST_VARIANT_ENUM_PARAMS(T2)> const& geometry2,
- Mask const& mask,
- Strategy const& strategy)
- {
- return boost::apply_visitor(visitor<Mask, Strategy>(mask, strategy), geometry1, geometry2);
- }
- };
- } // namespace resolve_variant
- /*!
- \brief Checks relation between a pair of geometries defined by a mask.
- \ingroup relate
- \tparam Geometry1 \tparam_geometry
- \tparam Geometry2 \tparam_geometry
- \tparam Mask An intersection model Mask type.
- \tparam Strategy \tparam_strategy{Relate}
- \param geometry1 \param_geometry
- \param geometry2 \param_geometry
- \param mask An intersection model mask object.
- \param strategy \param_strategy{relate}
- \return true if the relation is compatible with the mask, false otherwise.
- \qbk{distinguish,with strategy}
- \qbk{[include reference/algorithms/relate.qbk]}
- */
- template <typename Geometry1, typename Geometry2, typename Mask, typename Strategy>
- inline bool relate(Geometry1 const& geometry1,
- Geometry2 const& geometry2,
- Mask const& mask,
- Strategy const& strategy)
- {
- return resolve_variant::relate
- <
- Geometry1,
- Geometry2
- >::apply(geometry1, geometry2, mask, strategy);
- }
- /*!
- \brief Checks relation between a pair of geometries defined by a mask.
- \ingroup relate
- \tparam Geometry1 \tparam_geometry
- \tparam Geometry2 \tparam_geometry
- \tparam Mask An intersection model Mask type.
- \param geometry1 \param_geometry
- \param geometry2 \param_geometry
- \param mask An intersection model mask object.
- \return true if the relation is compatible with the mask, false otherwise.
- \qbk{[include reference/algorithms/relate.qbk]}
- */
- template <typename Geometry1, typename Geometry2, typename Mask>
- inline bool relate(Geometry1 const& geometry1,
- Geometry2 const& geometry2,
- Mask const& mask)
- {
- return resolve_variant::relate
- <
- Geometry1,
- Geometry2
- >::apply(geometry1, geometry2, mask, default_strategy());
- }
- }} // namespace boost::geometry
- #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_RELATE_INTERFACE_HPP
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