861 lines
25 KiB
C++
861 lines
25 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands.
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// This file was modified by Oracle on 2015-2022.
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// Modifications copyright (c) 2015-2022 Oracle and/or its affiliates.
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// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
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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_SYM_DIFFERENCE_HPP
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#define BOOST_GEOMETRY_ALGORITHMS_SYM_DIFFERENCE_HPP
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#include <algorithm>
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#include <iterator>
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#include <vector>
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#include <boost/geometry/algorithms/difference.hpp>
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#include <boost/geometry/algorithms/intersection.hpp>
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#include <boost/geometry/algorithms/union.hpp>
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#include <boost/geometry/geometries/adapted/boost_variant.hpp>
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#include <boost/geometry/geometries/multi_polygon.hpp>
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#include <boost/geometry/policies/robustness/get_rescale_policy.hpp>
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#include <boost/geometry/strategies/default_strategy.hpp>
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#include <boost/geometry/strategies/detail.hpp>
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#include <boost/geometry/strategies/relate/cartesian.hpp>
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#include <boost/geometry/strategies/relate/geographic.hpp>
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#include <boost/geometry/strategies/relate/spherical.hpp>
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#include <boost/geometry/util/range.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 sym_difference
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{
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template <typename GeometryOut>
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struct compute_difference
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{
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template
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<
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typename Geometry1,
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typename Geometry2,
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typename RobustPolicy,
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typename OutputIterator,
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typename Strategy
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>
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static inline OutputIterator apply(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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RobustPolicy const& robust_policy,
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OutputIterator out,
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Strategy const& strategy)
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{
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return geometry::dispatch::intersection_insert
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<
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Geometry1,
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Geometry2,
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GeometryOut,
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overlay_difference,
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geometry::detail::overlay::do_reverse
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<
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geometry::point_order<Geometry1>::value
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>::value,
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geometry::detail::overlay::do_reverse
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<
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geometry::point_order<Geometry2>::value, true
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>::value
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>::apply(geometry1, geometry2, robust_policy, out, strategy);
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}
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};
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template <typename GeometryOut, typename Geometry1, typename Geometry2>
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struct sym_difference_generic
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{
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template
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<
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typename RobustPolicy,
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typename OutputIterator,
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typename Strategy
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>
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static inline OutputIterator apply(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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RobustPolicy const& robust_policy,
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OutputIterator out,
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Strategy const& strategy)
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{
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out = compute_difference
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<
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GeometryOut
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>::apply(geometry1, geometry2, robust_policy, out, strategy);
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return compute_difference
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<
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GeometryOut
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>::apply(geometry2, geometry1, robust_policy, out, strategy);
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}
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};
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template <typename GeometryOut, typename Areal1, typename Areal2>
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struct sym_difference_areal_areal
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{
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template
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<
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typename RobustPolicy,
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typename OutputIterator,
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typename Strategy
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>
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static inline OutputIterator apply(Areal1 const& areal1,
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Areal2 const& areal2,
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RobustPolicy const& robust_policy,
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OutputIterator out,
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Strategy const& strategy)
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{
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typedef geometry::model::multi_polygon
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<
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GeometryOut
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> helper_geometry_type;
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helper_geometry_type diff12, diff21;
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std::back_insert_iterator<helper_geometry_type> oit12(diff12);
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std::back_insert_iterator<helper_geometry_type> oit21(diff21);
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compute_difference
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<
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GeometryOut
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>::apply(areal1, areal2, robust_policy, oit12, strategy);
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compute_difference
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<
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GeometryOut
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>::apply(areal2, areal1, robust_policy, oit21, strategy);
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return geometry::dispatch::union_insert
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<
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helper_geometry_type,
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helper_geometry_type,
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GeometryOut
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>::apply(diff12, diff21, robust_policy, out, strategy);
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}
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};
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template
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<
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typename GeometryOut,
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typename SingleTag,
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template <typename, typename, typename> class Algorithm
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>
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struct sym_difference_same_inputs_tupled_output
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{
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template
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<
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typename Geometry1,
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typename Geometry2,
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typename RobustPolicy,
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typename OutputIterator,
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typename Strategy
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>
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static inline OutputIterator apply(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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RobustPolicy const& robust_policy,
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OutputIterator out,
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Strategy const& strategy)
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{
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typedef typename geometry::detail::output_geometry_access
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<
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GeometryOut, SingleTag, SingleTag
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> access;
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access::get(out) = Algorithm
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<
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typename access::type, Geometry1, Geometry2
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>::apply(geometry1, geometry2, robust_policy, access::get(out), strategy);
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return out;
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}
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};
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template
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<
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typename GeometryOut,
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typename SingleTag1,
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typename SingleTag2,
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bool Reverse = (geometry::core_dispatch::top_dim<SingleTag1>::value
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> geometry::core_dispatch::top_dim<SingleTag2>::value)
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>
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struct sym_difference_different_inputs_tupled_output
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{
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template
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<
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typename Geometry1,
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typename Geometry2,
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typename RobustPolicy,
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typename OutputIterator,
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typename Strategy
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>
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static inline OutputIterator apply(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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RobustPolicy const& robust_policy,
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OutputIterator out,
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Strategy const& strategy)
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{
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return sym_difference_different_inputs_tupled_output
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<
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GeometryOut, SingleTag2, SingleTag1
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>::apply(geometry2, geometry1, robust_policy, out, strategy);
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}
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};
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template
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<
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typename GeometryOut,
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typename SingleTag1,
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typename SingleTag2
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>
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struct sym_difference_different_inputs_tupled_output
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<
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GeometryOut, SingleTag1, SingleTag2, false
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>
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{
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template
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<
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typename Geometry1,
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typename Geometry2,
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typename RobustPolicy,
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typename OutputIterator,
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typename Strategy
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>
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static inline OutputIterator apply(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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RobustPolicy const& robust_policy,
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OutputIterator out,
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Strategy const& strategy)
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{
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typedef typename geometry::detail::output_geometry_access
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<
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GeometryOut, SingleTag1, SingleTag1
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> access1;
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typedef typename geometry::detail::output_geometry_access
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<
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GeometryOut, SingleTag2, SingleTag2
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> access2;
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access1::get(out) = compute_difference
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<
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typename access1::type
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>::apply(geometry1, geometry2, robust_policy, access1::get(out), strategy);
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access2::get(out) = geometry::detail::convert_to_output
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<
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Geometry2,
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typename access2::type
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>::apply(geometry2, access2::get(out));
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return out;
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}
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};
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}} // namespace detail::sym_difference
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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 Geometry1,
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typename Geometry2,
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typename GeometryOut,
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typename TagIn1 = typename geometry::tag_cast
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<
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typename tag<Geometry1>::type, pointlike_tag, linear_tag, areal_tag
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>::type,
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typename TagIn2 = typename geometry::tag_cast
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<
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typename tag<Geometry2>::type, pointlike_tag, linear_tag, areal_tag
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>::type,
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typename TagOut = typename detail::setop_insert_output_tag<GeometryOut>::type
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>
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struct sym_difference_insert
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: detail::sym_difference::sym_difference_generic
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<
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GeometryOut, Geometry1, Geometry2
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>
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{};
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template
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<
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typename Areal1,
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typename Areal2,
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typename GeometryOut,
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typename TagOut
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>
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struct sym_difference_insert
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<
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Areal1, Areal2, GeometryOut,
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areal_tag, areal_tag, TagOut
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> : detail::sym_difference::sym_difference_areal_areal
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<
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GeometryOut, Areal1, Areal2
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>
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{};
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template
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<
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typename PointLike1,
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typename PointLike2,
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typename GeometryOut
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>
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struct sym_difference_insert
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<
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PointLike1, PointLike2, GeometryOut,
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pointlike_tag, pointlike_tag, detail::tupled_output_tag
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>
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: detail::expect_output<PointLike1, PointLike2, GeometryOut, point_tag>
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, detail::sym_difference::sym_difference_same_inputs_tupled_output
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<
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GeometryOut,
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point_tag,
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detail::sym_difference::sym_difference_generic
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>
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{};
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template
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<
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typename Linear1,
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typename Linear2,
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typename GeometryOut
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>
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struct sym_difference_insert
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<
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Linear1, Linear2, GeometryOut,
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linear_tag, linear_tag, detail::tupled_output_tag
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>
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: detail::expect_output<Linear1, Linear2, GeometryOut, linestring_tag>
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, detail::sym_difference::sym_difference_same_inputs_tupled_output
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<
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GeometryOut,
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linestring_tag,
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detail::sym_difference::sym_difference_generic
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>
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{};
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template
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<
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typename Areal1,
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typename Areal2,
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typename GeometryOut
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>
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struct sym_difference_insert
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<
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Areal1, Areal2, GeometryOut,
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areal_tag, areal_tag, detail::tupled_output_tag
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>
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: detail::expect_output<Areal1, Areal2, GeometryOut, polygon_tag>
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, detail::sym_difference::sym_difference_same_inputs_tupled_output
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<
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GeometryOut,
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polygon_tag,
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detail::sym_difference::sym_difference_areal_areal
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>
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{};
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template
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<
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typename Geometry1,
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typename Geometry2,
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typename GeometryOut,
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typename TagIn1,
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typename TagIn2
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>
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struct sym_difference_insert
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<
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Geometry1, Geometry2, GeometryOut,
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TagIn1, TagIn2, detail::tupled_output_tag
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>
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: detail::expect_output
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<
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Geometry1, Geometry2, GeometryOut,
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typename detail::single_tag_from_base_tag<TagIn1>::type,
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typename detail::single_tag_from_base_tag<TagIn2>::type
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>
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, detail::sym_difference::sym_difference_different_inputs_tupled_output
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<
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GeometryOut,
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typename detail::single_tag_from_base_tag<TagIn1>::type,
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typename detail::single_tag_from_base_tag<TagIn2>::type
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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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#ifndef DOXYGEN_NO_DETAIL
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namespace detail { namespace sym_difference
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{
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/*!
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\brief \brief_calc2{symmetric difference} \brief_strategy
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\ingroup sym_difference
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\details \details_calc2{symmetric difference, spatial set theoretic symmetric difference (XOR)}
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\brief_strategy. \details_insert{sym_difference}
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\tparam GeometryOut output geometry type, must be specified
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\tparam Geometry1 \tparam_geometry
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\tparam Geometry2 \tparam_geometry
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\tparam Strategy \tparam_strategy_overlay
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\param geometry1 \param_geometry
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\param geometry2 \param_geometry
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\param out \param_out{difference}
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\param strategy \param_strategy{difference}
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\return \return_out
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\qbk{distinguish,with strategy}
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*/
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template
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<
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typename GeometryOut,
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typename Geometry1,
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typename Geometry2,
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typename OutputIterator,
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typename Strategy
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>
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inline OutputIterator sym_difference_insert(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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OutputIterator out,
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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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//concepts::check<GeometryOut>();
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geometry::detail::output_geometry_concept_check<GeometryOut>::apply();
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typedef typename geometry::rescale_overlay_policy_type
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<
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Geometry1,
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Geometry2,
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typename Strategy::cs_tag
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>::type rescale_policy_type;
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rescale_policy_type robust_policy
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= geometry::get_rescale_policy<rescale_policy_type>(
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geometry1, geometry2, strategy);
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return dispatch::sym_difference_insert
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<
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Geometry1, Geometry2, GeometryOut
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>::apply(geometry1, geometry2, robust_policy, out, strategy);
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}
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/*!
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\brief \brief_calc2{symmetric difference}
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\ingroup sym_difference
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\details \details_calc2{symmetric difference, spatial set theoretic symmetric difference (XOR)}
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\details_insert{sym_difference}
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\tparam GeometryOut output geometry type, must be specified
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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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\param out \param_out{difference}
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\return \return_out
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*/
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template
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<
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typename GeometryOut,
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typename Geometry1,
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typename Geometry2,
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typename OutputIterator
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>
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inline OutputIterator sym_difference_insert(Geometry1 const& geometry1,
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Geometry2 const& geometry2, OutputIterator out)
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{
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typedef typename strategies::relate::services::default_strategy
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<
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Geometry1, Geometry2
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>::type strategy_type;
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return sym_difference_insert<GeometryOut>(geometry1, geometry2, out, strategy_type());
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}
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}} // namespace detail::sym_difference
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#endif // DOXYGEN_NO_DETAIL
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namespace resolve_collection
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{
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template
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<
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typename Geometry1, typename Geometry2, typename Collection,
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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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typename CollectionTag = typename geometry::tag<Collection>::type
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>
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struct sym_difference
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{
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template <typename Strategy>
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static void apply(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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Collection & output_collection,
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Strategy const& strategy)
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{
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typedef typename geometry::detail::output_geometry_value
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<
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Collection
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>::type single_out;
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detail::sym_difference::sym_difference_insert<single_out>(
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geometry1, geometry2,
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geometry::detail::output_geometry_back_inserter(output_collection),
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strategy);
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}
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};
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template <typename Geometry1, typename Geometry2, typename Collection>
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struct sym_difference
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<
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Geometry1, Geometry2, Collection,
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geometry_collection_tag, geometry_collection_tag, geometry_collection_tag
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>
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{
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template <typename Strategy>
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static void apply(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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Collection& output_collection,
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Strategy const& strategy)
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{
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Collection temp1, temp2;
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resolve_collection::difference
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<
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Geometry1, Geometry2, Collection
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>::apply(geometry1, geometry2, temp1, strategy);
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resolve_collection::difference
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<
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Geometry2, Geometry1, Collection
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>::apply(geometry2, geometry1, temp2, strategy);
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resolve_collection::union_
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<
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Collection, Collection, Collection
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>::apply(temp1, temp2, output_collection, strategy);
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}
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};
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template <typename Geometry1, typename Geometry2, typename Collection, typename Tag1>
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struct sym_difference
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<
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Geometry1, Geometry2, Collection,
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Tag1, geometry_collection_tag, geometry_collection_tag
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>
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{
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template <typename Strategy>
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static void apply(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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Collection & output_collection,
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Strategy const& strategy)
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{
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using gc_view_t = geometry::detail::geometry_collection_view<Geometry1>;
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sym_difference
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<
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gc_view_t, Geometry2, Collection
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>::apply(gc_view_t(geometry1), geometry2, output_collection, strategy);
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}
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};
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template <typename Geometry1, typename Geometry2, typename Collection, typename Tag2>
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struct sym_difference
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<
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Geometry1, Geometry2, Collection,
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geometry_collection_tag, Tag2, geometry_collection_tag
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>
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{
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template <typename Strategy>
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static void apply(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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Collection & output_collection,
|
|
Strategy const& strategy)
|
|
{
|
|
using gc_view_t = geometry::detail::geometry_collection_view<Geometry2>;
|
|
sym_difference
|
|
<
|
|
Geometry1, gc_view_t, Collection
|
|
>::apply(geometry1, gc_view_t(geometry2), output_collection, strategy);
|
|
}
|
|
};
|
|
|
|
template <typename Geometry1, typename Geometry2, typename Collection, typename Tag1, typename Tag2>
|
|
struct sym_difference
|
|
<
|
|
Geometry1, Geometry2, Collection,
|
|
Tag1, Tag2, geometry_collection_tag
|
|
>
|
|
{
|
|
template <typename Strategy>
|
|
static void apply(Geometry1 const& geometry1,
|
|
Geometry2 const& geometry2,
|
|
Collection & output_collection,
|
|
Strategy const& strategy)
|
|
{
|
|
using gc1_view_t = geometry::detail::geometry_collection_view<Geometry1>;
|
|
using gc2_view_t = geometry::detail::geometry_collection_view<Geometry2>;
|
|
sym_difference
|
|
<
|
|
gc1_view_t, gc2_view_t, Collection
|
|
>::apply(gc1_view_t(geometry1), gc2_view_t(geometry2), output_collection, strategy);
|
|
}
|
|
};
|
|
|
|
|
|
} // namespace resolve_collection
|
|
|
|
|
|
namespace resolve_strategy
|
|
{
|
|
|
|
template
|
|
<
|
|
typename Strategy,
|
|
bool IsUmbrella = strategies::detail::is_umbrella_strategy<Strategy>::value
|
|
>
|
|
struct sym_difference
|
|
{
|
|
template <typename Geometry1, typename Geometry2, typename Collection>
|
|
static inline void apply(Geometry1 const& geometry1,
|
|
Geometry2 const& geometry2,
|
|
Collection & output_collection,
|
|
Strategy const& strategy)
|
|
{
|
|
resolve_collection::sym_difference
|
|
<
|
|
Geometry1, Geometry2, Collection
|
|
>::apply(geometry1, geometry2, output_collection, strategy);
|
|
}
|
|
};
|
|
|
|
template <typename Strategy>
|
|
struct sym_difference<Strategy, false>
|
|
{
|
|
template <typename Geometry1, typename Geometry2, typename Collection>
|
|
static inline void apply(Geometry1 const& geometry1,
|
|
Geometry2 const& geometry2,
|
|
Collection & output_collection,
|
|
Strategy const& strategy)
|
|
{
|
|
using strategies::relate::services::strategy_converter;
|
|
|
|
sym_difference
|
|
<
|
|
decltype(strategy_converter<Strategy>::get(strategy))
|
|
>::apply(geometry1, geometry2, output_collection,
|
|
strategy_converter<Strategy>::get(strategy));
|
|
}
|
|
};
|
|
|
|
template <>
|
|
struct sym_difference<default_strategy, false>
|
|
{
|
|
template <typename Geometry1, typename Geometry2, typename Collection>
|
|
static inline void apply(Geometry1 const& geometry1,
|
|
Geometry2 const& geometry2,
|
|
Collection & output_collection,
|
|
default_strategy)
|
|
{
|
|
typedef typename strategies::relate::services::default_strategy
|
|
<
|
|
Geometry1, Geometry2
|
|
>::type strategy_type;
|
|
|
|
sym_difference
|
|
<
|
|
strategy_type
|
|
>::apply(geometry1, geometry2, output_collection, strategy_type());
|
|
}
|
|
};
|
|
|
|
} // resolve_strategy
|
|
|
|
|
|
namespace resolve_dynamic
|
|
{
|
|
|
|
template
|
|
<
|
|
typename Geometry1, typename Geometry2,
|
|
typename Tag1 = typename geometry::tag<Geometry1>::type,
|
|
typename Tag2 = typename geometry::tag<Geometry2>::type
|
|
>
|
|
struct sym_difference
|
|
{
|
|
template <typename Collection, typename Strategy>
|
|
static inline void apply(Geometry1 const& geometry1,
|
|
Geometry2 const& geometry2,
|
|
Collection& output_collection,
|
|
Strategy const& strategy)
|
|
{
|
|
resolve_strategy::sym_difference
|
|
<
|
|
Strategy
|
|
>::apply(geometry1, geometry2, output_collection, strategy);
|
|
}
|
|
};
|
|
|
|
|
|
template <typename DynamicGeometry1, typename Geometry2, typename Tag2>
|
|
struct sym_difference<DynamicGeometry1, Geometry2, dynamic_geometry_tag, Tag2>
|
|
{
|
|
template <typename Collection, typename Strategy>
|
|
static void apply(DynamicGeometry1 const& geometry1, Geometry2 const& geometry2,
|
|
Collection& output_collection, Strategy const& strategy)
|
|
{
|
|
traits::visit<DynamicGeometry1>::apply([&](auto const& g1)
|
|
{
|
|
resolve_strategy::sym_difference
|
|
<
|
|
Strategy
|
|
>::apply(g1, geometry2, output_collection, strategy);
|
|
}, geometry1);
|
|
}
|
|
};
|
|
|
|
|
|
template <typename Geometry1, typename DynamicGeometry2, typename Tag1>
|
|
struct sym_difference<Geometry1, DynamicGeometry2, Tag1, dynamic_geometry_tag>
|
|
{
|
|
template <typename Collection, typename Strategy>
|
|
static void apply(Geometry1 const& geometry1, DynamicGeometry2 const& geometry2,
|
|
Collection& output_collection, Strategy const& strategy)
|
|
{
|
|
traits::visit<DynamicGeometry2>::apply([&](auto const& g2)
|
|
{
|
|
resolve_strategy::sym_difference
|
|
<
|
|
Strategy
|
|
>::apply(geometry1, g2, output_collection, strategy);
|
|
}, geometry2);
|
|
}
|
|
};
|
|
|
|
|
|
template <typename DynamicGeometry1, typename DynamicGeometry2>
|
|
struct sym_difference<DynamicGeometry1, DynamicGeometry2, dynamic_geometry_tag, dynamic_geometry_tag>
|
|
{
|
|
template <typename Collection, typename Strategy>
|
|
static void apply(DynamicGeometry1 const& geometry1, DynamicGeometry2 const& geometry2,
|
|
Collection& output_collection, Strategy const& strategy)
|
|
{
|
|
traits::visit<DynamicGeometry1, DynamicGeometry2>::apply([&](auto const& g1, auto const& g2)
|
|
{
|
|
resolve_strategy::sym_difference
|
|
<
|
|
Strategy
|
|
>::apply(g1, g2, output_collection, strategy);
|
|
}, geometry1, geometry2);
|
|
}
|
|
};
|
|
|
|
} // namespace resolve_dynamic
|
|
|
|
|
|
/*!
|
|
\brief \brief_calc2{symmetric difference}
|
|
\ingroup sym_difference
|
|
\details \details_calc2{symmetric difference, spatial set theoretic symmetric difference (XOR)}.
|
|
\tparam Geometry1 \tparam_geometry
|
|
\tparam Geometry2 \tparam_geometry
|
|
\tparam Collection output collection, either a multi-geometry,
|
|
or a std::vector<Geometry> / std::deque<Geometry> etc
|
|
\tparam Strategy \tparam_strategy{Sym_difference}
|
|
\param geometry1 \param_geometry
|
|
\param geometry2 \param_geometry
|
|
\param output_collection the output collection
|
|
\param strategy \param_strategy{sym_difference}
|
|
|
|
\qbk{distinguish,with strategy}
|
|
\qbk{[include reference/algorithms/sym_difference.qbk]}
|
|
*/
|
|
template
|
|
<
|
|
typename Geometry1,
|
|
typename Geometry2,
|
|
typename Collection,
|
|
typename Strategy
|
|
>
|
|
inline void sym_difference(Geometry1 const& geometry1,
|
|
Geometry2 const& geometry2,
|
|
Collection& output_collection,
|
|
Strategy const& strategy)
|
|
{
|
|
resolve_dynamic::sym_difference
|
|
<
|
|
Geometry1,
|
|
Geometry2
|
|
>::apply(geometry1, geometry2, output_collection, strategy);
|
|
}
|
|
|
|
|
|
/*!
|
|
\brief \brief_calc2{symmetric difference}
|
|
\ingroup sym_difference
|
|
\details \details_calc2{symmetric difference, spatial set theoretic symmetric difference (XOR)}.
|
|
\tparam Geometry1 \tparam_geometry
|
|
\tparam Geometry2 \tparam_geometry
|
|
\tparam Collection output collection, either a multi-geometry,
|
|
or a std::vector<Geometry> / std::deque<Geometry> etc
|
|
\param geometry1 \param_geometry
|
|
\param geometry2 \param_geometry
|
|
\param output_collection the output collection
|
|
|
|
\qbk{[include reference/algorithms/sym_difference.qbk]}
|
|
*/
|
|
template
|
|
<
|
|
typename Geometry1,
|
|
typename Geometry2,
|
|
typename Collection
|
|
>
|
|
inline void sym_difference(Geometry1 const& geometry1,
|
|
Geometry2 const& geometry2,
|
|
Collection& output_collection)
|
|
{
|
|
resolve_dynamic::sym_difference
|
|
<
|
|
Geometry1,
|
|
Geometry2
|
|
>::apply(geometry1, geometry2, output_collection, default_strategy());
|
|
}
|
|
|
|
|
|
}} // namespace boost::geometry
|
|
|
|
|
|
#endif // BOOST_GEOMETRY_ALGORITHMS_SYM_DIFFERENCE_HPP
|