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[distance] implement the new file/directory structure fully:
move the free function and reverse dispatch in algorithms/distance/interface.hpp move the details of the implementation in algorithms/distance/implementation.hpp keep only these two headers in algorithms/distance.hpp
This commit is contained in:
Menelaos Karavelas
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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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// Copyright (c) 2013-2014 Adam Wulkiewicz, Lodz, Poland.
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// This file was modified by Oracle on 2014.
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// Modifications copyright (c) 2014, Oracle and/or its affiliates.
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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_IMPLEMENTATION_HPP
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#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_IMPLEMENTATION_HPP
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// the implementation details
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#include <boost/geometry/algorithms/detail/distance/point_to_geometry.hpp>
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#include <boost/geometry/algorithms/detail/distance/range_to_segment_or_box.hpp>
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#include <boost/geometry/algorithms/detail/distance/segment_to_box.hpp>
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#include <boost/geometry/algorithms/detail/distance/polygon_to_segment_or_box.hpp>
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#include <boost/geometry/algorithms/detail/distance/box_to_box.hpp>
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#include <boost/geometry/algorithms/detail/distance/single_to_multi.hpp>
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#include <boost/geometry/algorithms/detail/distance/multi_to_multi.hpp>
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#include <boost/geometry/algorithms/detail/distance/multipoint_to_range.hpp>
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#include <boost/geometry/algorithms/detail/distance/geometry_to_geometry_rtree.hpp>
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#include <boost/geometry/algorithms/detail/distance/segment_to_segment.hpp>
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#include <boost/geometry/algorithms/detail/distance/backward_compatibility.hpp>
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#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_IMPLEMENTATION_HPP
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183
include/boost/geometry/algorithms/detail/distance/interface.hpp
Normal file
183
include/boost/geometry/algorithms/detail/distance/interface.hpp
Normal file
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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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// Copyright (c) 2013-2014 Adam Wulkiewicz, Lodz, Poland.
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// This file was modified by Oracle on 2014.
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// Modifications copyright (c) 2014, Oracle and/or its affiliates.
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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_INTERFACE_HPP
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#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_INTERFACE_HPP
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#include <boost/concept_check.hpp>
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#include <boost/geometry/core/point_type.hpp>
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#include <boost/geometry/multi/core/point_type.hpp>
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#include <boost/geometry/algorithms/num_points.hpp>
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#include <boost/geometry/multi/algorithms/num_points.hpp>
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#include <boost/geometry/algorithms/detail/throw_on_empty_input.hpp>
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#include <boost/geometry/geometries/concepts/check.hpp>
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#include <boost/geometry/multi/geometries/concepts/check.hpp>
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#include <boost/geometry/strategies/distance.hpp>
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#include <boost/geometry/strategies/default_distance_result.hpp>
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#include <boost/geometry/algorithms/detail/distance/default_strategies.hpp>
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#include <boost/geometry/algorithms/dispatch/distance.hpp>
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namespace boost { namespace geometry
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{
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#ifndef DOXYGEN_NO_DISPATCH
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namespace dispatch
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{
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// If reversal is needed, perform it
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template
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<
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typename Geometry1, typename Geometry2, typename Strategy,
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typename Tag1, typename Tag2, typename StrategyTag
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>
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struct distance
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<
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Geometry1, Geometry2, Strategy,
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Tag1, Tag2, StrategyTag,
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true
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>
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: distance<Geometry2, Geometry1, Strategy, Tag2, Tag1, StrategyTag, false>
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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<Geometry2>::type,
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typename point_type<Geometry1>::type
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>::type return_type;
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static inline return_type apply(
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Geometry1 const& g1,
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Geometry2 const& g2,
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Strategy const& strategy)
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{
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return distance
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<
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Geometry2, Geometry1, Strategy,
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Tag2, Tag1, StrategyTag,
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false
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>::apply(g2, g1, 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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/*!
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\brief \brief_calc2{distance} \brief_strategy
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\ingroup distance
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\details
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\details \details_calc{area}. \brief_strategy. \details_strategy_reasons
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\tparam Geometry1 \tparam_geometry
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\tparam Geometry2 \tparam_geometry
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\tparam Strategy \tparam_strategy{Distance}
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\param geometry1 \param_geometry
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\param geometry2 \param_geometry
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\param strategy \param_strategy{distance}
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\return \return_calc{distance}
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\note The strategy can be a point-point strategy. In case of distance point-line/point-polygon
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it may also be a point-segment strategy.
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\qbk{distinguish,with strategy}
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\qbk{
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[heading Available Strategies]
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\* [link geometry.reference.strategies.strategy_distance_pythagoras Pythagoras (cartesian)]
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\* [link geometry.reference.strategies.strategy_distance_haversine Haversine (spherical)]
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\* [link geometry.reference.strategies.strategy_distance_cross_track Cross track (spherical\, point-to-segment)]
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\* [link geometry.reference.strategies.strategy_distance_projected_point Projected point (cartesian\, point-to-segment)]
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\* more (currently extensions): Vincenty\, Andoyer (geographic)
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}
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*/
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/*
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Note, in case of a Compilation Error:
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if you get:
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- "Failed to specialize function template ..."
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- "error: no matching function for call to ..."
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for distance, it is probably so that there is no specialization
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for return_type<...> for your strategy.
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*/
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template <typename Geometry1, typename Geometry2, typename Strategy>
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inline typename strategy::distance::services::return_type
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<
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Strategy,
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typename point_type<Geometry1>::type,
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typename point_type<Geometry2>::type
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>::type
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distance(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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Strategy const& strategy)
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{
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concept::check<Geometry1 const>();
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concept::check<Geometry2 const>();
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detail::throw_on_empty_input(geometry1);
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detail::throw_on_empty_input(geometry2);
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return dispatch::distance
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<
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Geometry1,
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Geometry2,
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Strategy
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>::apply(geometry1, geometry2, strategy);
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}
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/*!
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\brief \brief_calc2{distance}
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\ingroup distance
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\details The default strategy is used, corresponding to the coordinate system of the geometries
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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_calc{distance}
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\qbk{[include reference/algorithms/distance.qbk]}
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*/
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template <typename Geometry1, typename Geometry2>
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inline typename default_distance_result<Geometry1, Geometry2>::type distance(
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Geometry1 const& geometry1, Geometry2 const& geometry2)
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{
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concept::check<Geometry1 const>();
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concept::check<Geometry2 const>();
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typedef typename detail::distance::default_strategy
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<
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Geometry1, Geometry2
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>::type default_strategy_type;
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return distance(geometry1, geometry2, default_strategy_type());
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}
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_INTERFACE_HPP
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