83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
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// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2007-2014 Barend Gehrels, Amsterdam, the Netherlands.
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// Copyright (c) 2008-2014 Bruno Lalande, Paris, France.
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// Copyright (c) 2009-2014 Mateusz Loskot, London, UK.
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// This file was modified by Oracle on 2013-2020.
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// Modifications copyright (c) 2013-2020, 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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// 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_DETAIL_INTERSECTS_IMPLEMENTATION_HPP
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#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_INTERSECTS_IMPLEMENTATION_HPP
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#include <deque>
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#include <boost/geometry/algorithms/detail/intersects/interface.hpp>
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#include <boost/geometry/algorithms/detail/disjoint/implementation.hpp>
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#include <boost/geometry/algorithms/detail/overlay/self_turn_points.hpp>
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#include <boost/geometry/policies/disjoint_interrupt_policy.hpp>
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#include <boost/geometry/policies/robustness/no_rescale_policy.hpp>
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#include <boost/geometry/strategies/relate/services.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 intersects
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{
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template <typename Geometry>
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struct self_intersects
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{
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static bool apply(Geometry const& geometry)
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{
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concepts::check<Geometry const>();
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typedef typename geometry::point_type<Geometry>::type point_type;
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typedef typename strategies::relate::services::default_strategy
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<
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Geometry, Geometry
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>::type strategy_type;
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typedef detail::overlay::turn_info<point_type> turn_info;
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std::deque<turn_info> turns;
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typedef detail::overlay::get_turn_info
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<
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detail::overlay::assign_null_policy
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> turn_policy;
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strategy_type strategy;
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detail::disjoint::disjoint_interrupt_policy policy;
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// TODO: skip_adjacent should be set to false
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detail::self_get_turn_points::get_turns
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<
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false, turn_policy
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>::apply(geometry, strategy, detail::no_rescale_policy(), turns, policy, 0, true);
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return policy.has_intersections;
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}
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};
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}} // namespace detail::intersects
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#endif // DOXYGEN_NO_DETAIL
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_INTERSECTS_IMPLEMENTATION_HPP
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