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// Boost.Geometry (aka GGL, Generic Geometry Library)
// Copyright (c) 2007-2014 Barend Gehrels, Amsterdam, the Netherlands.
// Copyright (c) 2008-2014 Bruno Lalande, Paris, France.
// Copyright (c) 2009-2014 Mateusz Loskot, London, UK.
// Copyright (c) 2013-2014 Adam Wulkiewicz, Lodz, Poland.
// This file was modified by Oracle on 2014.
// Modifications copyright (c) 2014, Oracle and/or its affiliates.
// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
// Use, modification and distribution is subject to the Boost Software License,
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_DEFAULT_STRATEGIES_HPP
#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_DEFAULT_STRATEGIES_HPP
#include <boost/geometry/core/cs.hpp>
#include <boost/geometry/core/tag.hpp>
#include <boost/geometry/core/tag_cast.hpp>
#include <boost/geometry/core/tags.hpp>
#include <boost/geometry/core/point_type.hpp>
#include <boost/geometry/core/reverse_dispatch.hpp>
#include <boost/geometry/strategies/distance.hpp>
namespace boost { namespace geometry
{
#ifndef DOXYGEN_NO_DETAIL
namespace detail { namespace distance
{
// Helper metafunction for default strategy retrieval
template
<
typename Geometry1,
typename Geometry2 = Geometry1,
typename Tag1 = typename tag_cast
<
typename tag<Geometry1>::type, pointlike_tag
>::type,
typename Tag2 = typename tag_cast
<
typename tag<Geometry2>::type, pointlike_tag
>::type,
bool Reverse = geometry::reverse_dispatch<Geometry1, Geometry2>::type::value
>
struct default_strategy
: strategy::distance::services::default_strategy
<
point_tag, segment_tag,
typename point_type<Geometry1>::type,
typename point_type<Geometry2>::type
>
{};
template
<
typename Geometry1,
typename Geometry2,
typename Tag1,
typename Tag2
>
struct default_strategy<Geometry1, Geometry2, Tag1, Tag2, true>
: default_strategy<Geometry2, Geometry1, Tag2, Tag1, false>
{};
template <typename Pointlike1, typename Pointlike2>
struct default_strategy
<
Pointlike1, Pointlike2,
pointlike_tag, pointlike_tag, false
> : strategy::distance::services::default_strategy
<
point_tag, point_tag,
typename point_type<Pointlike1>::type,
typename point_type<Pointlike2>::type
>
{};
template <typename Pointlike, typename Box>
struct default_strategy<Pointlike, Box, pointlike_tag, box_tag, false>
: strategy::distance::services::default_strategy
<
point_tag, box_tag,
typename point_type<Pointlike>::type,
typename point_type<Box>::type
>
{};
template <typename Box1, typename Box2>
struct default_strategy<Box1, Box2, box_tag, box_tag, false>
: strategy::distance::services::default_strategy
<
box_tag, box_tag,
typename point_type<Box1>::type,
typename point_type<Box2>::type
>
{};
// Helper metafunction for default point-segment strategy retrieval
template <typename Geometry1, typename Geometry2, typename Strategy>
struct default_ps_strategy
: strategy::distance::services::default_strategy
<
point_tag, segment_tag,
typename point_type<Geometry1>::type,
typename point_type<Geometry2>::type,
typename cs_tag<typename point_type<Geometry1>::type>::type,
typename cs_tag<typename point_type<Geometry2>::type>::type,
Strategy
>
{};
}} // namespace detail::distance
#endif // DOXYGEN_NO_DETAIL
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_DEFAULT_STRATEGIES_HPP
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