Added boost header
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Christophe Riccio
319
test/external/boost/geometry/algorithms/equals.hpp
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319
test/external/boost/geometry/algorithms/equals.hpp
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// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2007-2011 Barend Gehrels, Amsterdam, the Netherlands.
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// Copyright (c) 2008-2011 Bruno Lalande, Paris, France.
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// Copyright (c) 2009-2011 Mateusz Loskot, London, UK.
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// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
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// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
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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_EQUALS_HPP
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#define BOOST_GEOMETRY_ALGORITHMS_EQUALS_HPP
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#include <cstddef>
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#include <vector>
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#include <boost/mpl/if.hpp>
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#include <boost/static_assert.hpp>
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#include <boost/range.hpp>
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#include <boost/geometry/core/access.hpp>
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#include <boost/geometry/core/coordinate_dimension.hpp>
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#include <boost/geometry/core/reverse_dispatch.hpp>
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#include <boost/geometry/geometries/concepts/check.hpp>
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#include <boost/geometry/algorithms/detail/disjoint.hpp>
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#include <boost/geometry/algorithms/detail/not.hpp>
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// For trivial checks
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#include <boost/geometry/algorithms/area.hpp>
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#include <boost/geometry/algorithms/length.hpp>
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#include <boost/geometry/util/math.hpp>
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#include <boost/geometry/util/select_coordinate_type.hpp>
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#include <boost/geometry/util/select_most_precise.hpp>
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#include <boost/geometry/algorithms/detail/equals/collect_vectors.hpp>
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namespace boost { namespace geometry
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{
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#ifndef DOXYGEN_NO_DETAIL
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namespace detail { namespace equals
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{
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template
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<
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typename Box1,
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typename Box2,
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std::size_t Dimension,
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std::size_t DimensionCount
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>
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struct box_box
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{
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static inline bool apply(Box1 const& box1, Box2 const& box2)
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{
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if (!geometry::math::equals(get<min_corner, Dimension>(box1), get<min_corner, Dimension>(box2))
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|| !geometry::math::equals(get<max_corner, Dimension>(box1), get<max_corner, Dimension>(box2)))
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{
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return false;
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}
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return box_box<Box1, Box2, Dimension + 1, DimensionCount>::apply(box1, box2);
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}
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};
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template <typename Box1, typename Box2, std::size_t DimensionCount>
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struct box_box<Box1, Box2, DimensionCount, DimensionCount>
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{
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static inline bool apply(Box1 const& , Box2 const& )
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{
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return true;
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}
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};
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struct area_check
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{
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template <typename Geometry1, typename Geometry2>
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static inline bool apply(Geometry1 const& geometry1, Geometry2 const& geometry2)
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{
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return geometry::math::equals(
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geometry::area(geometry1),
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geometry::area(geometry2));
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}
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};
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struct length_check
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{
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template <typename Geometry1, typename Geometry2>
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static inline bool apply(Geometry1 const& geometry1, Geometry2 const& geometry2)
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{
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return geometry::math::equals(
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geometry::length(geometry1),
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geometry::length(geometry2));
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}
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};
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template <typename Geometry1, typename Geometry2, typename TrivialCheck>
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struct equals_by_collection
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{
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static inline bool apply(Geometry1 const& geometry1, Geometry2 const& geometry2)
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{
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if (! TrivialCheck::apply(geometry1, geometry2))
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{
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return false;
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}
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typedef typename geometry::select_most_precise
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<
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typename select_coordinate_type
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<
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Geometry1, Geometry2
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>::type,
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double
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>::type calculation_type;
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typedef std::vector<collected_vector<calculation_type> > v;
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v c1, c2;
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geometry::collect_vectors(c1, geometry1);
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geometry::collect_vectors(c2, geometry2);
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if (boost::size(c1) != boost::size(c2))
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{
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return false;
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}
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std::sort(c1.begin(), c1.end());
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std::sort(c2.begin(), c2.end());
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// Just check if these vectors are equal.
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return std::equal(c1.begin(), c1.end(), c2.begin());
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}
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};
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}} // namespace detail::equals
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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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{
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template
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<
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typename Tag1, typename Tag2,
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typename Geometry1,
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typename Geometry2,
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std::size_t DimensionCount
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>
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struct equals
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{};
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template <typename P1, typename P2, std::size_t DimensionCount>
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struct equals<point_tag, point_tag, P1, P2, DimensionCount>
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: geometry::detail::not_
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<
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P1,
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P2,
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detail::disjoint::point_point<P1, P2, 0, DimensionCount>
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>
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{};
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template <typename Box1, typename Box2, std::size_t DimensionCount>
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struct equals<box_tag, box_tag, Box1, Box2, DimensionCount>
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: detail::equals::box_box<Box1, Box2, 0, DimensionCount>
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{};
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template <typename Ring1, typename Ring2>
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struct equals<ring_tag, ring_tag, Ring1, Ring2, 2>
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: detail::equals::equals_by_collection
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<
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Ring1, Ring2,
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detail::equals::area_check
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>
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{};
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template <typename Polygon1, typename Polygon2>
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struct equals<polygon_tag, polygon_tag, Polygon1, Polygon2, 2>
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: detail::equals::equals_by_collection
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<
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Polygon1, Polygon2,
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detail::equals::area_check
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>
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{};
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template <typename LineString1, typename LineString2>
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struct equals<linestring_tag, linestring_tag, LineString1, LineString2, 2>
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: detail::equals::equals_by_collection
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<
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LineString1, LineString2,
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detail::equals::length_check
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>
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{};
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template <typename Polygon, typename Ring>
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struct equals<polygon_tag, ring_tag, Polygon, Ring, 2>
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: detail::equals::equals_by_collection
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<
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Polygon, Ring,
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detail::equals::area_check
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>
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{};
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template <typename Ring, typename Box>
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struct equals<ring_tag, box_tag, Ring, Box, 2>
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: detail::equals::equals_by_collection
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<
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Ring, Box,
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detail::equals::area_check
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>
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{};
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template <typename Polygon, typename Box>
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struct equals<polygon_tag, box_tag, Polygon, Box, 2>
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: detail::equals::equals_by_collection
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<
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Polygon, Box,
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detail::equals::area_check
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>
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{};
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template
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<
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typename Tag1, typename Tag2,
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typename Geometry1,
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typename Geometry2,
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std::size_t DimensionCount
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>
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struct equals_reversed
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{
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static inline bool apply(Geometry1 const& g1, Geometry2 const& g2)
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{
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return equals
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<
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Tag2, Tag1,
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Geometry2, Geometry1,
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DimensionCount
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>::apply(g2, g1);
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}
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};
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} // namespace dispatch
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#endif // DOXYGEN_NO_DISPATCH
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/*!
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\brief \brief_check{are spatially equal}
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\details \details_check12{equals, is spatially equal}. Spatially equal means
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that the same point set is included. A box can therefore be spatially equal
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to a ring or a polygon, or a linestring can be spatially equal to a
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multi-linestring or a segment. This only theoretically, not all combinations
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are implemented yet.
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\ingroup equals
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\tparam Geometry1 \tparam_geometry
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\tparam Geometry2 \tparam_geometry
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\param geometry1 \param_geometry
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\param geometry2 \param_geometry
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\return \return_check2{are spatially equal}
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\qbk{[include reference/algorithms/equals.qbk]}
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*/
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template <typename Geometry1, typename Geometry2>
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inline bool equals(Geometry1 const& geometry1, Geometry2 const& geometry2)
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{
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concept::check_concepts_and_equal_dimensions
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<
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Geometry1 const,
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Geometry2 const
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>();
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return boost::mpl::if_c
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<
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reverse_dispatch<Geometry1, Geometry2>::type::value,
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dispatch::equals_reversed
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<
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typename tag<Geometry1>::type,
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typename tag<Geometry2>::type,
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Geometry1,
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Geometry2,
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dimension<Geometry1>::type::value
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>,
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dispatch::equals
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<
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typename tag<Geometry1>::type,
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typename tag<Geometry2>::type,
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Geometry1,
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Geometry2,
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dimension<Geometry1>::type::value
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>
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>::type::apply(geometry1, geometry2);
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}
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_ALGORITHMS_EQUALS_HPP
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