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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.
// This file was modified by Oracle on 2013, 2014, 2017, 2018.
// Modifications copyright (c) 2013-2018 Oracle and/or its affiliates.
// Contributed and/or modified by Adam Wulkiewicz, 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_WITHIN_INTERFACE_HPP
#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_WITHIN_INTERFACE_HPP
#include <boost/concept_check.hpp>
#include <boost/variant/apply_visitor.hpp>
#include <boost/variant/static_visitor.hpp>
#include <boost/variant/variant_fwd.hpp>
#include <boost/geometry/algorithms/not_implemented.hpp>
#include <boost/geometry/core/tag.hpp>
#include <boost/geometry/core/tag_cast.hpp>
#include <boost/geometry/geometries/concepts/check.hpp>
#include <boost/geometry/strategies/concepts/within_concept.hpp>
#include <boost/geometry/strategies/default_strategy.hpp>
#include <boost/geometry/strategies/within.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 within
: not_implemented<Tag1, Tag2>
{};
} // namespace dispatch
#endif // DOXYGEN_NO_DISPATCH
namespace resolve_strategy
{
struct within
{
template <typename Geometry1, typename Geometry2, typename Strategy>
static inline bool apply(Geometry1 const& geometry1,
Geometry2 const& geometry2,
Strategy const& strategy)
{
concepts::within::check<Geometry1, Geometry2, Strategy>();
return dispatch::within<Geometry1, Geometry2>::apply(geometry1, geometry2, strategy);
}
template <typename Geometry1, typename Geometry2>
static inline bool apply(Geometry1 const& geometry1,
Geometry2 const& geometry2,
default_strategy)
{
typedef typename strategy::within::services::default_strategy
<
Geometry1,
Geometry2
>::type strategy_type;
return apply(geometry1, geometry2, strategy_type());
}
};
} // namespace resolve_strategy
namespace resolve_variant
{
template <typename Geometry1, typename Geometry2>
struct within
{
template <typename Strategy>
static inline bool apply(Geometry1 const& geometry1,
Geometry2 const& geometry2,
Strategy const& strategy)
{
concepts::check<Geometry1 const>();
concepts::check<Geometry2 const>();
assert_dimension_equal<Geometry1, Geometry2>();
return resolve_strategy::within::apply(geometry1,
geometry2,
strategy);
}
};
template <BOOST_VARIANT_ENUM_PARAMS(typename T), typename Geometry2>
struct within<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>, Geometry2>
{
template <typename Strategy>
struct visitor: boost::static_visitor<bool>
{
Geometry2 const& m_geometry2;
Strategy const& m_strategy;
visitor(Geometry2 const& geometry2, Strategy const& strategy)
: m_geometry2(geometry2)
, m_strategy(strategy)
{}
template <typename Geometry1>
bool operator()(Geometry1 const& geometry1) const
{
return within<Geometry1, Geometry2>::apply(geometry1,
m_geometry2,
m_strategy);
}
};
template <typename Strategy>
static inline bool
apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry1,
Geometry2 const& geometry2,
Strategy const& strategy)
{
return boost::apply_visitor(visitor<Strategy>(geometry2, strategy),
geometry1);
}
};
template <typename Geometry1, BOOST_VARIANT_ENUM_PARAMS(typename T)>
struct within<Geometry1, boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> >
{
template <typename Strategy>
struct visitor: boost::static_visitor<bool>
{
Geometry1 const& m_geometry1;
Strategy const& m_strategy;
visitor(Geometry1 const& geometry1, Strategy const& strategy)
: m_geometry1(geometry1)
, m_strategy(strategy)
{}
template <typename Geometry2>
bool operator()(Geometry2 const& geometry2) const
{
return within<Geometry1, Geometry2>::apply(m_geometry1,
geometry2,
m_strategy);
}
};
template <typename Strategy>
static inline bool
apply(Geometry1 const& geometry1,
boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry2,
Strategy const& strategy)
{
return boost::apply_visitor(visitor<Strategy>(geometry1, strategy),
geometry2
);
}
};
template <
BOOST_VARIANT_ENUM_PARAMS(typename T1),
BOOST_VARIANT_ENUM_PARAMS(typename T2)
>
struct within<
boost::variant<BOOST_VARIANT_ENUM_PARAMS(T1)>,
boost::variant<BOOST_VARIANT_ENUM_PARAMS(T2)>
>
{
template <typename Strategy>
struct visitor: boost::static_visitor<bool>
{
Strategy const& m_strategy;
visitor(Strategy const& strategy): m_strategy(strategy) {}
template <typename Geometry1, typename Geometry2>
bool operator()(Geometry1 const& geometry1,
Geometry2 const& geometry2) const
{
return within<Geometry1, Geometry2>::apply(geometry1,
geometry2,
m_strategy);
}
};
template <typename Strategy>
static inline bool
apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T1)> const& geometry1,
boost::variant<BOOST_VARIANT_ENUM_PARAMS(T2)> const& geometry2,
Strategy const& strategy)
{
return boost::apply_visitor(visitor<Strategy>(strategy),
geometry1,
geometry2);
}
};
}
/*!
\brief \brief_check12{is completely inside}
\ingroup within
\details \details_check12{within, is completely inside}.
\tparam Geometry1 \tparam_geometry
\tparam Geometry2 \tparam_geometry
\param geometry1 \param_geometry which might be within the second geometry
\param geometry2 \param_geometry which might contain the first geometry
\return true if geometry1 is completely contained within geometry2,
else false
\note The default strategy is used for within detection
\qbk{[include reference/algorithms/within.qbk]}
\qbk{
[heading Example]
[within]
[within_output]
}
*/
template<typename Geometry1, typename Geometry2>
inline bool within(Geometry1 const& geometry1, Geometry2 const& geometry2)
{
return resolve_variant::within
<
Geometry1,
Geometry2
>::apply(geometry1, geometry2, default_strategy());
}
/*!
\brief \brief_check12{is completely inside} \brief_strategy
\ingroup within
\details \details_check12{within, is completely inside}, \brief_strategy. \details_strategy_reasons
\tparam Geometry1 \tparam_geometry
\tparam Geometry2 \tparam_geometry
\param geometry1 \param_geometry which might be within the second geometry
\param geometry2 \param_geometry which might contain the first geometry
\param strategy strategy to be used
\return true if geometry1 is completely contained within geometry2,
else false
\qbk{distinguish,with strategy}
\qbk{[include reference/algorithms/within.qbk]}
\qbk{
[heading Available Strategies]
\* [link geometry.reference.strategies.strategy_within_winding Winding (coordinate system agnostic)]
\* [link geometry.reference.strategies.strategy_within_franklin Franklin (cartesian)]
\* [link geometry.reference.strategies.strategy_within_crossings_multiply Crossings Multiply (cartesian)]
[heading Example]
[within_strategy]
[within_strategy_output]
}
*/
template<typename Geometry1, typename Geometry2, typename Strategy>
inline bool within(Geometry1 const& geometry1,
Geometry2 const& geometry2,
Strategy const& strategy)
{
return resolve_variant::within
<
Geometry1,
Geometry2
>::apply(geometry1, geometry2, strategy);
}
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_WITHIN_INTERFACE_HPP
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