// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2014, 2019, 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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// Licensed under the Boost Software License version 1.0.
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// http://www.boost.org/users/license.html
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#ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_LINEAR_OR_AREAL_TO_AREAL_HPP
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#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_LINEAR_OR_AREAL_TO_AREAL_HPP
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#include <boost/geometry/core/point_type.hpp>
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#include <boost/geometry/strategies/distance.hpp>
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#include <boost/geometry/algorithms/intersects.hpp>
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#include <boost/geometry/algorithms/detail/distance/linear_to_linear.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 distance
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{
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template <typename Linear, typename Areal, typename Strategy>
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struct linear_to_areal
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{
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typedef typename strategy::distance::services::return_type
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<
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Strategy,
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typename point_type<Linear>::type,
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typename point_type<Areal>::type
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>::type return_type;
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static inline return_type apply(Linear const& linear,
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Areal const& areal,
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Strategy const& strategy)
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{
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if ( geometry::intersects(linear, areal,
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strategy.get_relate_segment_segment_strategy()) )
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{
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return 0;
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}
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return linear_to_linear
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<
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Linear, Areal, Strategy
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>::apply(linear, areal, strategy, false);
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}
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static inline return_type apply(Areal const& areal,
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Linear const& linear,
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Strategy const& strategy)
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{
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return apply(linear, areal, strategy);
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}
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};
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template <typename Areal1, typename Areal2, typename Strategy>
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struct areal_to_areal
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{
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typedef typename strategy::distance::services::return_type
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<
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Strategy,
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typename point_type<Areal1>::type,
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typename point_type<Areal2>::type
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>::type return_type;
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static inline return_type apply(Areal1 const& areal1,
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Areal2 const& areal2,
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Strategy const& strategy)
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{
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if ( geometry::intersects(areal1, areal2,
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strategy.get_relate_segment_segment_strategy()) )
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{
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return 0;
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}
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return linear_to_linear
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<
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Areal1, Areal2, Strategy
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>::apply(areal1, areal2, strategy, false);
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}
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};
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}} // namespace detail::distance
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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 <typename Linear, typename Areal, typename Strategy>
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struct distance
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<
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Linear, Areal, Strategy,
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linear_tag, areal_tag,
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strategy_tag_distance_point_segment, false
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>
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: detail::distance::linear_to_areal
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<
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Linear, Areal, Strategy
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>
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{};
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template <typename Areal, typename Linear, typename Strategy>
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struct distance
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<
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Areal, Linear, Strategy,
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areal_tag, linear_tag,
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strategy_tag_distance_point_segment, false
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>
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: detail::distance::linear_to_areal
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<
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Linear, Areal, Strategy
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>
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{};
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template <typename Areal1, typename Areal2, typename Strategy>
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struct distance
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<
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Areal1, Areal2, Strategy,
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areal_tag, areal_tag,
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strategy_tag_distance_point_segment, false
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>
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: detail::distance::areal_to_areal
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<
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Areal1, Areal2, Strategy
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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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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_LINEAR_OR_AREAL_TO_AREAL_HPP
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