// 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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// Copyright (c) 2013-2014 Adam Wulkiewicz, Lodz, Poland.
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// This file was modified by Oracle on 2014, 2020.
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// Modifications copyright (c) 2014-2020 Oracle and/or its affiliates.
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// Contributed and/or modified by Vissarion Fysikopoulos, on behalf of Oracle
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// Contributed and/or modified by Menelaos Karavelas, 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_DISTANCE_DEFAULT_STRATEGIES_HPP
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#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_DEFAULT_STRATEGIES_HPP
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#include <boost/geometry/core/cs.hpp>
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#include <boost/geometry/core/tag.hpp>
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#include <boost/geometry/core/tag_cast.hpp>
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#include <boost/geometry/core/tags.hpp>
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#include <boost/geometry/core/point_type.hpp>
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#include <boost/geometry/core/reverse_dispatch.hpp>
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#include <boost/geometry/strategies/distance.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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// Helper metafunction for default strategy retrieval
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template
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<
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typename Geometry1,
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typename Geometry2 = Geometry1,
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typename Tag1 = typename tag_cast
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<
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typename tag<Geometry1>::type, pointlike_tag
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>::type,
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typename Tag2 = typename tag_cast
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<
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typename tag<Geometry2>::type, pointlike_tag
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>::type,
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bool Reverse = geometry::reverse_dispatch<Geometry1, Geometry2>::type::value
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>
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struct default_strategy
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: strategy::distance::services::default_strategy
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<
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point_tag, segment_tag,
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typename point_type<Geometry1>::type,
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typename point_type<Geometry2>::type
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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 Tag1,
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typename Tag2
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>
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struct default_strategy<Geometry1, Geometry2, Tag1, Tag2, true>
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: default_strategy<Geometry2, Geometry1, Tag2, Tag1, false>
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{};
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template <typename Pointlike1, typename Pointlike2>
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struct default_strategy
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<
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Pointlike1, Pointlike2,
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pointlike_tag, pointlike_tag, false
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> : strategy::distance::services::default_strategy
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<
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point_tag, point_tag,
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typename point_type<Pointlike1>::type,
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typename point_type<Pointlike2>::type
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>
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{};
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template <typename Pointlike, typename Box>
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struct default_strategy<Pointlike, Box, pointlike_tag, box_tag, false>
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: strategy::distance::services::default_strategy
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<
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point_tag, box_tag,
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typename point_type<Pointlike>::type,
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typename point_type<Box>::type
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>
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{};
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template <typename Box1, typename Box2>
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struct default_strategy<Box1, Box2, box_tag, box_tag, false>
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: strategy::distance::services::default_strategy
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<
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box_tag, box_tag,
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typename point_type<Box1>::type,
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typename point_type<Box2>::type
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>
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{};
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template <typename PolygonalOrLinear, typename Box>
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struct default_strategy_polygonal_or_linear
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: strategy::distance::services::default_strategy
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<
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segment_tag, box_tag,
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typename point_type<PolygonalOrLinear>::type,
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typename point_type<Box>::type
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>
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{};
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template <typename Linear, typename Box>
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struct default_strategy<Linear, Box, segment_tag, box_tag, false>
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: default_strategy_polygonal_or_linear<Linear, Box>
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{};
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template <typename Linear, typename Box>
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struct default_strategy<Linear, Box, linestring_tag, box_tag, false>
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: default_strategy_polygonal_or_linear<Linear, Box>
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{};
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template <typename Linear, typename Box>
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struct default_strategy<Linear, Box, multi_linestring_tag, box_tag, false>
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: default_strategy_polygonal_or_linear<Linear, Box>
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{};
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template <typename Polygonal, typename Box>
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struct default_strategy<Polygonal, Box, polygon_tag, box_tag, false>
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: default_strategy_polygonal_or_linear<Polygonal, Box>
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{};
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template <typename Polygonal, typename Box>
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struct default_strategy<Polygonal, Box, ring_tag, box_tag, false>
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: default_strategy_polygonal_or_linear<Polygonal, Box>
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{};
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template <typename Polygonal, typename Box>
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struct default_strategy<Polygonal, Box, multi_polygon_tag, box_tag, false>
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: default_strategy_polygonal_or_linear<Polygonal, Box>
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{};
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// Helper metafunction for default point-segment strategy retrieval
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template <typename Geometry1, typename Geometry2, typename Strategy>
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struct default_ps_strategy
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: strategy::distance::services::default_strategy
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<
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point_tag, segment_tag,
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typename point_type<Geometry1>::type,
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typename point_type<Geometry2>::type,
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typename cs_tag<typename point_type<Geometry1>::type>::type,
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typename cs_tag<typename point_type<Geometry2>::type>::type,
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Strategy
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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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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_DEFAULT_STRATEGIES_HPP
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