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// Boost.Geometry (aka GGL, Generic Geometry Library)
// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
// Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
// Copyright (c) 2014 Samuel Debionne, Grenoble, France.
// This file was modified by Oracle on 2014.
// Modifications copyright (c) 2014 Oracle and/or its affiliates.
// 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)
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
#ifndef BOOST_GEOMETRY_ALGORITHMS_CROSSES_HPP
#define BOOST_GEOMETRY_ALGORITHMS_CROSSES_HPP
#include <cstddef>
#include <boost/variant/apply_visitor.hpp>
#include <boost/variant/static_visitor.hpp>
#include <boost/variant/variant_fwd.hpp>
#include <boost/geometry/core/access.hpp>
#include <boost/geometry/geometries/concepts/check.hpp>
#include <boost/geometry/algorithms/relate.hpp>
#include <boost/geometry/algorithms/detail/relate/relate_impl.hpp>
namespace boost { namespace geometry
{
#ifndef DOXYGEN_NO_DISPATCH
namespace dispatch
{
template
<
typename Geometry1,
typename Geometry2,
typename Tag1 = typename tag<Geometry1>::type,
typename Tag2 = typename tag<Geometry2>::type
>
struct crosses
: detail::relate::relate_impl
<
detail::de9im::static_mask_crosses_type,
Geometry1,
Geometry2
>
{};
} // namespace dispatch
#endif // DOXYGEN_NO_DISPATCH
namespace resolve_variant
{
template <typename Geometry1, typename Geometry2>
struct crosses
{
static inline bool
apply(
const Geometry1& geometry1,
const Geometry2& geometry2)
{
concepts::check<Geometry1 const>();
concepts::check<Geometry2 const>();
return dispatch::crosses<Geometry1, Geometry2>::apply(geometry1, geometry2);
}
};
template <BOOST_VARIANT_ENUM_PARAMS(typename T), typename Geometry2>
struct crosses<variant<BOOST_VARIANT_ENUM_PARAMS(T)>, Geometry2>
{
struct visitor: static_visitor<bool>
{
Geometry2 const& m_geometry2;
visitor(Geometry2 const& geometry2)
: m_geometry2(geometry2)
{}
template <typename Geometry1>
result_type operator()(Geometry1 const& geometry1) const
{
return crosses
<
Geometry1,
Geometry2
>::apply(geometry1, m_geometry2);
}
};
static inline bool
apply(variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry1,
Geometry2 const& geometry2)
{
return boost::apply_visitor(visitor(geometry2), geometry1);
}
};
template <typename Geometry1, BOOST_VARIANT_ENUM_PARAMS(typename T)>
struct crosses<Geometry1, variant<BOOST_VARIANT_ENUM_PARAMS(T)> >
{
struct visitor: static_visitor<bool>
{
Geometry1 const& m_geometry1;
visitor(Geometry1 const& geometry1)
: m_geometry1(geometry1)
{}
template <typename Geometry2>
result_type operator()(Geometry2 const& geometry2) const
{
return crosses
<
Geometry1,
Geometry2
>::apply(m_geometry1, geometry2);
}
};
static inline bool
apply(Geometry1 const& geometry1,
const variant<BOOST_VARIANT_ENUM_PARAMS(T)>& geometry2)
{
return boost::apply_visitor(visitor(geometry1), geometry2);
}
};
template <BOOST_VARIANT_ENUM_PARAMS(typename T1), BOOST_VARIANT_ENUM_PARAMS(typename T2)>
struct crosses<variant<BOOST_VARIANT_ENUM_PARAMS(T1)>, variant<BOOST_VARIANT_ENUM_PARAMS(T2)> >
{
struct visitor: static_visitor<bool>
{
template <typename Geometry1, typename Geometry2>
result_type operator()(Geometry1 const& geometry1,
Geometry2 const& geometry2) const
{
return crosses
<
Geometry1,
Geometry2
>::apply(geometry1, geometry2);
}
};
static inline bool
apply(const variant<BOOST_VARIANT_ENUM_PARAMS(T1)>& geometry1,
const variant<BOOST_VARIANT_ENUM_PARAMS(T2)>& geometry2)
{
return boost::apply_visitor(visitor(), geometry1, geometry2);
}
};
} // namespace resolve_variant
/*!
\brief \brief_check2{crosses}
\ingroup crosses
\tparam Geometry1 \tparam_geometry
\tparam Geometry2 \tparam_geometry
\param geometry1 \param_geometry
\param geometry2 \param_geometry
\return \return_check2{crosses}
\qbk{[include reference/algorithms/crosses.qbk]}
*/
template <typename Geometry1, typename Geometry2>
inline bool crosses(Geometry1 const& geometry1, Geometry2 const& geometry2)
{
return resolve_variant::crosses<Geometry1, Geometry2>::apply(geometry1, geometry2);
}
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_ALGORITHMS_CROSSES_HPP
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