422 lines
13 KiB
C++
422 lines
13 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
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// This file was modified by Oracle on 2013, 2014, 2015, 2017.
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// Modifications copyright (c) 2013-2017 Oracle and/or its affiliates.
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// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
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// Use, modification and distribution is subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_RELATE_INTERFACE_HPP
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#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_RELATE_INTERFACE_HPP
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#include <boost/type_traits/is_same.hpp>
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#include <boost/variant/apply_visitor.hpp>
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#include <boost/variant/static_visitor.hpp>
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#include <boost/variant/variant_fwd.hpp>
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#include <boost/geometry/core/coordinate_dimension.hpp>
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#include <boost/geometry/core/tag.hpp>
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#include <boost/geometry/core/tags.hpp>
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#include <boost/geometry/core/topological_dimension.hpp>
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#include <boost/geometry/algorithms/detail/relate/de9im.hpp>
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#include <boost/geometry/algorithms/not_implemented.hpp>
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#include <boost/geometry/geometries/concepts/check.hpp>
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#include <boost/geometry/strategies/default_strategy.hpp>
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#include <boost/geometry/strategies/relate.hpp>
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namespace boost { namespace geometry {
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#ifndef DOXYGEN_NO_DETAIL
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namespace detail { namespace relate {
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// Those are used only to allow dispatch::relate to produce compile-time error
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template <typename Geometry,
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typename Tag = typename geometry::tag<Geometry>::type>
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struct is_supported_by_generic
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{
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static const bool value
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= boost::is_same<Tag, linestring_tag>::value
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|| boost::is_same<Tag, multi_linestring_tag>::value
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|| boost::is_same<Tag, ring_tag>::value
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|| boost::is_same<Tag, polygon_tag>::value
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|| boost::is_same<Tag, multi_polygon_tag>::value;
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};
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template <typename Geometry1,
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typename Geometry2,
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typename Tag1 = typename geometry::tag<Geometry1>::type,
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typename Tag2 = typename geometry::tag<Geometry2>::type>
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struct is_generic
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{
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static const bool value = is_supported_by_generic<Geometry1>::value
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&& is_supported_by_generic<Geometry2>::value;
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};
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template <typename Point, typename Geometry, typename Tag>
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struct is_generic<Point, Geometry, point_tag, Tag>
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{
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static const bool value = is_supported_by_generic<Geometry>::value;
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};
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template <typename Geometry, typename Point, typename Tag>
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struct is_generic<Geometry, Point, Tag, point_tag>
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{
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static const bool value = is_supported_by_generic<Geometry>::value;
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};
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template <typename Point1, typename Point2>
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struct is_generic<Point1, Point2, point_tag, point_tag>
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{
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static const bool value = false;
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};
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}} // namespace detail::relate
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#endif // DOXYGEN_NO_DETAIL
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#ifndef DOXYGEN_NO_DISPATCH
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namespace dispatch {
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template <typename Geometry1,
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typename Geometry2,
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typename Tag1 = typename geometry::tag<Geometry1>::type,
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typename Tag2 = typename geometry::tag<Geometry2>::type,
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int TopDim1 = geometry::topological_dimension<Geometry1>::value,
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int TopDim2 = geometry::topological_dimension<Geometry2>::value,
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bool IsGeneric = detail::relate::is_generic<Geometry1, Geometry2>::value
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>
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struct relate : not_implemented<Tag1, Tag2>
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{};
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} // namespace dispatch
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#endif // DOXYGEN_NO_DISPATCH
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#ifndef DOXYGEN_NO_DETAIL
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namespace detail { namespace relate {
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template <typename Geometry1, typename Geometry2>
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struct interruption_enabled
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{
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static const bool value =
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dispatch::relate<Geometry1, Geometry2>::interruption_enabled;
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};
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template <typename Geometry1,
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typename Geometry2,
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typename Result,
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bool IsSequence = boost::mpl::is_sequence<Result>::value>
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struct result_handler_type
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: not_implemented<Result>
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{};
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template <typename Geometry1, typename Geometry2>
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struct result_handler_type<Geometry1, Geometry2, geometry::de9im::mask, false>
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{
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typedef mask_handler
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<
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geometry::de9im::mask,
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interruption_enabled
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<
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Geometry1,
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Geometry2
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>::value
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> type;
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};
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template <typename Geometry1, typename Geometry2, typename Head, typename Tail>
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struct result_handler_type<Geometry1, Geometry2, boost::tuples::cons<Head, Tail>, false>
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{
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typedef mask_handler
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<
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boost::tuples::cons<Head, Tail>,
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interruption_enabled
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<
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Geometry1,
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Geometry2
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>::value
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> type;
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};
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template <typename Geometry1, typename Geometry2,
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char II, char IB, char IE,
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char BI, char BB, char BE,
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char EI, char EB, char EE>
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struct result_handler_type
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<
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Geometry1,
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Geometry2,
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geometry::de9im::static_mask<II, IB, IE, BI, BB, BE, EI, EB, EE>,
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false
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>
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{
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typedef static_mask_handler
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<
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geometry::de9im::static_mask<II, IB, IE, BI, BB, BE, EI, EB, EE>,
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interruption_enabled
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<
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Geometry1,
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Geometry2
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>::value
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> type;
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};
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template <typename Geometry1, typename Geometry2, typename StaticSequence>
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struct result_handler_type<Geometry1, Geometry2, StaticSequence, true>
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{
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typedef static_mask_handler
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<
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StaticSequence,
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interruption_enabled
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<
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Geometry1,
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Geometry2
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>::value
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> type;
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};
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}} // namespace detail::relate
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#endif // DOXYGEN_NO_DETAIL
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namespace resolve_strategy {
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struct relate
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{
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template <typename Geometry1, typename Geometry2, typename ResultHandler, typename Strategy>
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static inline void apply(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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ResultHandler & handler,
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Strategy const& strategy)
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{
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dispatch::relate
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<
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Geometry1,
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Geometry2
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>::apply(geometry1, geometry2, handler, strategy);
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}
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template <typename Geometry1, typename Geometry2, typename ResultHandler>
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static inline void apply(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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ResultHandler & handler,
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default_strategy)
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{
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typedef typename strategy::relate::services::default_strategy
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<
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Geometry1,
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Geometry2
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>::type strategy_type;
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dispatch::relate
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<
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Geometry1,
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Geometry2
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>::apply(geometry1, geometry2, handler, strategy_type());
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}
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};
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} // resolve_strategy
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namespace resolve_variant {
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template <typename Geometry1, typename Geometry2>
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struct relate
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{
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template <typename Mask, typename Strategy>
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static inline bool apply(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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Mask const& mask,
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Strategy const& strategy)
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{
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concepts::check<Geometry1 const>();
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concepts::check<Geometry2 const>();
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assert_dimension_equal<Geometry1, Geometry2>();
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typename detail::relate::result_handler_type
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<
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Geometry1,
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Geometry2,
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Mask
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>::type handler(mask);
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resolve_strategy::relate::apply(geometry1, geometry2, handler, strategy);
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return handler.result();
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}
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};
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template <BOOST_VARIANT_ENUM_PARAMS(typename T), typename Geometry2>
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struct relate<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>, Geometry2>
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{
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template <typename Mask, typename Strategy>
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struct visitor : boost::static_visitor<bool>
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{
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Geometry2 const& m_geometry2;
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Mask const& m_mask;
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Strategy const& m_strategy;
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visitor(Geometry2 const& geometry2, Mask const& mask, Strategy const& strategy)
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: m_geometry2(geometry2), m_mask(mask), m_strategy(strategy) {}
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template <typename Geometry1>
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bool operator()(Geometry1 const& geometry1) const
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{
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return relate<Geometry1, Geometry2>
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::apply(geometry1, m_geometry2, m_mask, m_strategy);
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}
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};
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template <typename Mask, typename Strategy>
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static inline bool
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apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry1,
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Geometry2 const& geometry2,
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Mask const& mask,
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Strategy const& strategy)
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{
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return boost::apply_visitor(visitor<Mask, Strategy>(geometry2, mask, strategy), geometry1);
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}
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};
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template <typename Geometry1, BOOST_VARIANT_ENUM_PARAMS(typename T)>
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struct relate<Geometry1, boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> >
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{
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template <typename Mask, typename Strategy>
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struct visitor : boost::static_visitor<bool>
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{
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Geometry1 const& m_geometry1;
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Mask const& m_mask;
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Strategy const& m_strategy;
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visitor(Geometry1 const& geometry1, Mask const& mask, Strategy const& strategy)
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: m_geometry1(geometry1), m_mask(mask), m_strategy(strategy) {}
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template <typename Geometry2>
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bool operator()(Geometry2 const& geometry2) const
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{
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return relate<Geometry1, Geometry2>
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::apply(m_geometry1, geometry2, m_mask, m_strategy);
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}
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};
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template <typename Mask, typename Strategy>
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static inline bool
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apply(Geometry1 const& geometry1,
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boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry2,
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Mask const& mask,
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Strategy const& strategy)
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{
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return boost::apply_visitor(visitor<Mask, Strategy>(geometry1, mask, strategy), geometry2);
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}
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};
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template <
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BOOST_VARIANT_ENUM_PARAMS(typename T1),
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BOOST_VARIANT_ENUM_PARAMS(typename T2)
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>
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struct relate<
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boost::variant<BOOST_VARIANT_ENUM_PARAMS(T1)>,
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boost::variant<BOOST_VARIANT_ENUM_PARAMS(T2)>
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>
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{
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template <typename Mask, typename Strategy>
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struct visitor : boost::static_visitor<bool>
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{
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Mask const& m_mask;
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Strategy const& m_strategy;
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visitor(Mask const& mask, Strategy const& strategy)
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: m_mask(mask), m_strategy(strategy) {}
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template <typename Geometry1, typename Geometry2>
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bool operator()(Geometry1 const& geometry1,
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Geometry2 const& geometry2) const
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{
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return relate<Geometry1, Geometry2>
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::apply(geometry1, geometry2, m_mask, m_strategy);
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}
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};
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template <typename Mask, typename Strategy>
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static inline bool
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apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T1)> const& geometry1,
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boost::variant<BOOST_VARIANT_ENUM_PARAMS(T2)> const& geometry2,
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Mask const& mask,
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Strategy const& strategy)
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{
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return boost::apply_visitor(visitor<Mask, Strategy>(mask, strategy), geometry1, geometry2);
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}
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};
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} // namespace resolve_variant
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/*!
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\brief Checks relation between a pair of geometries defined by a mask.
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\ingroup relate
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\tparam Geometry1 \tparam_geometry
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\tparam Geometry2 \tparam_geometry
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\tparam Mask An intersection model Mask type.
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\tparam Strategy \tparam_strategy{Relate}
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\param geometry1 \param_geometry
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\param geometry2 \param_geometry
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\param mask An intersection model mask object.
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\param strategy \param_strategy{relate}
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\return true if the relation is compatible with the mask, false otherwise.
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\qbk{distinguish,with strategy}
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\qbk{[include reference/algorithms/relate.qbk]}
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*/
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template <typename Geometry1, typename Geometry2, typename Mask, typename Strategy>
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inline bool relate(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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Mask const& mask,
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Strategy const& strategy)
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{
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return resolve_variant::relate
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<
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Geometry1,
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Geometry2
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>::apply(geometry1, geometry2, mask, strategy);
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}
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/*!
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\brief Checks relation between a pair of geometries defined by a mask.
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\ingroup relate
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\tparam Geometry1 \tparam_geometry
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\tparam Geometry2 \tparam_geometry
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\tparam Mask An intersection model Mask type.
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\param geometry1 \param_geometry
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\param geometry2 \param_geometry
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\param mask An intersection model mask object.
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\return true if the relation is compatible with the mask, false otherwise.
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\qbk{[include reference/algorithms/relate.qbk]}
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*/
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template <typename Geometry1, typename Geometry2, typename Mask>
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inline bool relate(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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Mask const& mask)
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{
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return resolve_variant::relate
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<
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Geometry1,
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Geometry2
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>::apply(geometry1, geometry2, mask, default_strategy());
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}
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_RELATE_INTERFACE_HPP
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