vn-verdnaturachat/ios/Pods/boost-for-react-native/boost/geometry/algorithms/equals.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.
// Modifications copyright (c) 2014-2016 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_EQUALS_HPP
#define BOOST_GEOMETRY_ALGORITHMS_EQUALS_HPP
#include <cstddef>
#include <vector>
#include <boost/range.hpp>
#include <boost/variant/apply_visitor.hpp>
#include <boost/variant/static_visitor.hpp>
#include <boost/variant/variant_fwd.hpp>
#include <boost/geometry/core/access.hpp>
#include <boost/geometry/core/coordinate_dimension.hpp>
#include <boost/geometry/core/geometry_id.hpp>
#include <boost/geometry/core/reverse_dispatch.hpp>
#include <boost/geometry/core/tags.hpp>
#include <boost/geometry/geometries/concepts/check.hpp>
#include <boost/geometry/algorithms/detail/equals/point_point.hpp>
#include <boost/geometry/algorithms/detail/not.hpp>
#include <boost/geometry/algorithms/not_implemented.hpp>
// For trivial checks
#include <boost/geometry/algorithms/area.hpp>
#include <boost/geometry/algorithms/length.hpp>
#include <boost/geometry/util/math.hpp>
#include <boost/geometry/util/select_coordinate_type.hpp>
#include <boost/geometry/util/select_most_precise.hpp>
#include <boost/geometry/algorithms/detail/equals/collect_vectors.hpp>
#include <boost/geometry/algorithms/relate.hpp>
#include <boost/geometry/algorithms/detail/relate/relate_impl.hpp>
#include <boost/geometry/views/detail/indexed_point_view.hpp>
namespace boost { namespace geometry
{
#ifndef DOXYGEN_NO_DETAIL
namespace detail { namespace equals
{
template
<
std::size_t Dimension,
std::size_t DimensionCount
>
struct box_box
{
template <typename Box1, typename Box2>
static inline bool apply(Box1 const& box1, Box2 const& box2)
{
if (!geometry::math::equals(get<min_corner, Dimension>(box1), get<min_corner, Dimension>(box2))
|| !geometry::math::equals(get<max_corner, Dimension>(box1), get<max_corner, Dimension>(box2)))
{
return false;
}
return box_box<Dimension + 1, DimensionCount>::apply(box1, box2);
}
};
template <std::size_t DimensionCount>
struct box_box<DimensionCount, DimensionCount>
{
template <typename Box1, typename Box2>
static inline bool apply(Box1 const& , Box2 const& )
{
return true;
}
};
struct segment_segment
{
template <typename Segment1, typename Segment2>
static inline bool apply(Segment1 const& segment1, Segment2 const& segment2)
{
return equals::equals_point_point(
indexed_point_view<Segment1 const, 0>(segment1),
indexed_point_view<Segment2 const, 0>(segment2) )
? equals::equals_point_point(
indexed_point_view<Segment1 const, 1>(segment1),
indexed_point_view<Segment2 const, 1>(segment2) )
: ( equals::equals_point_point(
indexed_point_view<Segment1 const, 0>(segment1),
indexed_point_view<Segment2 const, 1>(segment2) )
&& equals::equals_point_point(
indexed_point_view<Segment1 const, 1>(segment1),
indexed_point_view<Segment2 const, 0>(segment2) )
);
}
};
struct area_check
{
template <typename Geometry1, typename Geometry2>
static inline bool apply(Geometry1 const& geometry1, Geometry2 const& geometry2)
{
return geometry::math::equals(
geometry::area(geometry1),
geometry::area(geometry2));
}
};
struct length_check
{
template <typename Geometry1, typename Geometry2>
static inline bool apply(Geometry1 const& geometry1, Geometry2 const& geometry2)
{
return geometry::math::equals(
geometry::length(geometry1),
geometry::length(geometry2));
}
};
template <typename TrivialCheck>
struct equals_by_collection
{
template <typename Geometry1, typename Geometry2>
static inline bool apply(Geometry1 const& geometry1, Geometry2 const& geometry2)
{
if (! TrivialCheck::apply(geometry1, geometry2))
{
return false;
}
typedef typename geometry::select_most_precise
<
typename select_coordinate_type
<
Geometry1, Geometry2
>::type,
double
>::type calculation_type;
typedef geometry::collected_vector
<
calculation_type,
Geometry1
> collected_vector;
std::vector<collected_vector> c1, c2;
geometry::collect_vectors(c1, geometry1);
geometry::collect_vectors(c2, geometry2);
if (boost::size(c1) != boost::size(c2))
{
return false;
}
std::sort(c1.begin(), c1.end());
std::sort(c2.begin(), c2.end());
// Just check if these vectors are equal.
return std::equal(c1.begin(), c1.end(), c2.begin());
}
};
template<typename Geometry1, typename Geometry2>
struct equals_by_relate
: detail::relate::relate_impl
<
detail::de9im::static_mask_equals_type,
Geometry1,
Geometry2
>
{};
}} // namespace detail::equals
#endif // DOXYGEN_NO_DETAIL
#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>
{
static inline bool apply(Geometry1 const& g1, Geometry2 const& g2)
{
return equals
<
Geometry2, Geometry1,
Tag2, Tag1,
DimensionCount,
false
>::apply(g2, g1);
}
};
template <typename P1, typename P2, std::size_t DimensionCount, bool Reverse>
struct equals<P1, P2, point_tag, point_tag, DimensionCount, Reverse>
: geometry::detail::not_
<
detail::disjoint::point_point<P1, P2, 0, DimensionCount>
>
{};
template <typename Box1, typename Box2, std::size_t DimensionCount, bool Reverse>
struct equals<Box1, Box2, box_tag, box_tag, DimensionCount, Reverse>
: detail::equals::box_box<0, DimensionCount>
{};
template <typename Ring1, typename Ring2, bool Reverse>
struct equals<Ring1, Ring2, ring_tag, ring_tag, 2, Reverse>
: detail::equals::equals_by_collection<detail::equals::area_check>
{};
template <typename Polygon1, typename Polygon2, bool Reverse>
struct equals<Polygon1, Polygon2, polygon_tag, polygon_tag, 2, Reverse>
: detail::equals::equals_by_collection<detail::equals::area_check>
{};
template <typename Polygon, typename Ring, bool Reverse>
struct equals<Polygon, Ring, polygon_tag, ring_tag, 2, Reverse>
: detail::equals::equals_by_collection<detail::equals::area_check>
{};
template <typename Ring, typename Box, bool Reverse>
struct equals<Ring, Box, ring_tag, box_tag, 2, Reverse>
: detail::equals::equals_by_collection<detail::equals::area_check>
{};
template <typename Polygon, typename Box, bool Reverse>
struct equals<Polygon, Box, polygon_tag, box_tag, 2, Reverse>
: detail::equals::equals_by_collection<detail::equals::area_check>
{};
template <typename Segment1, typename Segment2, std::size_t DimensionCount, bool Reverse>
struct equals<Segment1, Segment2, segment_tag, segment_tag, DimensionCount, Reverse>
: detail::equals::segment_segment
{};
template <typename LineString1, typename LineString2, bool Reverse>
struct equals<LineString1, LineString2, linestring_tag, linestring_tag, 2, Reverse>
//: detail::equals::equals_by_collection<detail::equals::length_check>
: detail::equals::equals_by_relate<LineString1, LineString2>
{};
template <typename LineString, typename MultiLineString, bool Reverse>
struct equals<LineString, MultiLineString, linestring_tag, multi_linestring_tag, 2, Reverse>
: detail::equals::equals_by_relate<LineString, MultiLineString>
{};
template <typename MultiLineString1, typename MultiLineString2, bool Reverse>
struct equals<MultiLineString1, MultiLineString2, multi_linestring_tag, multi_linestring_tag, 2, Reverse>
: detail::equals::equals_by_relate<MultiLineString1, MultiLineString2>
{};
template <typename MultiPolygon1, typename MultiPolygon2, bool Reverse>
struct equals
<
MultiPolygon1, MultiPolygon2,
multi_polygon_tag, multi_polygon_tag,
2,
Reverse
>
: detail::equals::equals_by_collection<detail::equals::area_check>
{};
template <typename Polygon, typename MultiPolygon, bool Reverse>
struct equals
<
Polygon, MultiPolygon,
polygon_tag, multi_polygon_tag,
2,
Reverse
>
: detail::equals::equals_by_collection<detail::equals::area_check>
{};
template <typename MultiPolygon, typename Ring, bool Reverse>
struct equals
<
MultiPolygon, Ring,
multi_polygon_tag, ring_tag,
2,
Reverse
>
: detail::equals::equals_by_collection<detail::equals::area_check>
{};
} // namespace dispatch
#endif // DOXYGEN_NO_DISPATCH
namespace resolve_variant {
template <typename Geometry1, typename Geometry2>
struct equals
{
static inline bool apply(Geometry1 const& geometry1,
Geometry2 const& geometry2)
{
concepts::check_concepts_and_equal_dimensions
<
Geometry1 const,
Geometry2 const
>();
return dispatch::equals<Geometry1, Geometry2>
::apply(geometry1, geometry2);
}
};
template <BOOST_VARIANT_ENUM_PARAMS(typename T), typename Geometry2>
struct equals<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>, Geometry2>
{
struct visitor: static_visitor<bool>
{
Geometry2 const& m_geometry2;
visitor(Geometry2 const& geometry2)
: m_geometry2(geometry2)
{}
template <typename Geometry1>
inline bool operator()(Geometry1 const& geometry1) const
{
return equals<Geometry1, Geometry2>
::apply(geometry1, m_geometry2);
}
};
static inline bool apply(
boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry1,
Geometry2 const& geometry2
)
{
return boost::apply_visitor(visitor(geometry2), geometry1);
}
};
template <typename Geometry1, BOOST_VARIANT_ENUM_PARAMS(typename T)>
struct equals<Geometry1, boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> >
{
struct visitor: static_visitor<bool>
{
Geometry1 const& m_geometry1;
visitor(Geometry1 const& geometry1)
: m_geometry1(geometry1)
{}
template <typename Geometry2>
inline bool operator()(Geometry2 const& geometry2) const
{
return equals<Geometry1, Geometry2>
::apply(m_geometry1, geometry2);
}
};
static inline bool apply(
Geometry1 const& geometry1,
boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry2
)
{
return boost::apply_visitor(visitor(geometry1), 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)>
>
{
struct visitor: static_visitor<bool>
{
template <typename Geometry1, typename Geometry2>
inline bool operator()(Geometry1 const& geometry1,
Geometry2 const& geometry2) const
{
return equals<Geometry1, Geometry2>
::apply(geometry1, geometry2);
}
};
static inline bool apply(
boost::variant<BOOST_VARIANT_ENUM_PARAMS(T1)> const& geometry1,
boost::variant<BOOST_VARIANT_ENUM_PARAMS(T2)> const& geometry2
)
{
return boost::apply_visitor(visitor(), 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
\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);
}
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_ALGORITHMS_EQUALS_HPP