/usr/include/boost/geometry/algorithms/detail/intersection
Edit: /usr/include/boost/geometry/algorithms/detail/intersection/interface.hpp (12980B)
// Boost.Geometry (aka GGL, Generic Geometry Library)
// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
// This file was modified by Oracle on 2014, 2017, 2019.
// Modifications copyright (c) 2014-2019, Oracle and/or its affiliates.
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
// 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_INTERSECTION_INTERFACE_HPP
#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_INTERSECTION_INTERFACE_HPP
#include
#include
#include
#include
#include
#include
#include
#include
namespace boost { namespace geometry
{
#ifndef DOXYGEN_NO_DISPATCH
namespace dispatch
{
// By default, all is forwarded to the intersection_insert-dispatcher
template
<
typename Geometry1, typename Geometry2,
typename Tag1 = typename geometry::tag::type,
typename Tag2 = typename geometry::tag::type,
bool Reverse = reverse_dispatch::type::value
>
struct intersection
{
template
static inline bool apply(Geometry1 const& geometry1,
Geometry2 const& geometry2,
RobustPolicy const& robust_policy,
GeometryOut& geometry_out,
Strategy const& strategy)
{
typedef typename geometry::detail::output_geometry_value
<
GeometryOut
>::type SingleOut;
intersection_insert
<
Geometry1, Geometry2, SingleOut,
overlay_intersection
>::apply(geometry1, geometry2, robust_policy,
geometry::detail::output_geometry_back_inserter(geometry_out),
strategy);
return true;
}
};
// If reversal is needed, perform it
template
<
typename Geometry1, typename Geometry2,
typename Tag1, typename Tag2
>
struct intersection
<
Geometry1, Geometry2,
Tag1, Tag2,
true
>
: intersection
{
template
static inline bool apply(
Geometry1 const& g1,
Geometry2 const& g2,
RobustPolicy const& robust_policy,
GeometryOut& out,
Strategy const& strategy)
{
return intersection
<
Geometry2, Geometry1,
Tag2, Tag1,
false
>::apply(g2, g1, robust_policy, out, strategy);
}
};
} // namespace dispatch
#endif // DOXYGEN_NO_DISPATCH
namespace resolve_strategy {
struct intersection
{
template
<
typename Geometry1,
typename Geometry2,
typename GeometryOut,
typename Strategy
>
static inline bool apply(Geometry1 const& geometry1,
Geometry2 const& geometry2,
GeometryOut & geometry_out,
Strategy const& strategy)
{
typedef typename geometry::rescale_overlay_policy_type
<
Geometry1,
Geometry2,
typename Strategy::cs_tag
>::type rescale_policy_type;
rescale_policy_type robust_policy
= geometry::get_rescale_policy(
geometry1, geometry2, strategy);
return dispatch::intersection
<
Geometry1,
Geometry2
>::apply(geometry1, geometry2, robust_policy, geometry_out,
strategy);
}
template
<
typename Geometry1,
typename Geometry2,
typename GeometryOut
>
static inline bool apply(Geometry1 const& geometry1,
Geometry2 const& geometry2,
GeometryOut & geometry_out,
default_strategy)
{
typedef typename geometry::rescale_overlay_policy_type
<
Geometry1,
Geometry2,
typename geometry::cs_tag::type
>::type rescale_policy_type;
typename strategy::relate::services::default_strategy
<
Geometry1, Geometry2
>::type strategy;
rescale_policy_type robust_policy
= geometry::get_rescale_policy(
geometry1, geometry2, strategy);
return dispatch::intersection
<
Geometry1,
Geometry2
>::apply(geometry1, geometry2, robust_policy, geometry_out,
strategy);
}
};
} // resolve_strategy
namespace resolve_variant
{
template
struct intersection
{
template
static inline bool apply(Geometry1 const& geometry1,
Geometry2 const& geometry2,
GeometryOut& geometry_out,
Strategy const& strategy)
{
concepts::check();
concepts::check();
return resolve_strategy::intersection::apply(geometry1,
geometry2,
geometry_out,
strategy);
}
};
template
struct intersection, Geometry2>
{
template
struct visitor: static_visitor
{
Geometry2 const& m_geometry2;
GeometryOut& m_geometry_out;
Strategy const& m_strategy;
visitor(Geometry2 const& geometry2,
GeometryOut& geometry_out,
Strategy const& strategy)
: m_geometry2(geometry2)
, m_geometry_out(geometry_out)
, m_strategy(strategy)
{}
template
bool operator()(Geometry1 const& geometry1) const
{
return intersection
<
Geometry1,
Geometry2
>::apply(geometry1, m_geometry2, m_geometry_out, m_strategy);
}
};
template
static inline bool
apply(variant const& geometry1,
Geometry2 const& geometry2,
GeometryOut& geometry_out,
Strategy const& strategy)
{
return boost::apply_visitor(visitor(geometry2,
geometry_out,
strategy),
geometry1);
}
};
template
struct intersection >
{
template
struct visitor: static_visitor
{
Geometry1 const& m_geometry1;
GeometryOut& m_geometry_out;
Strategy const& m_strategy;
visitor(Geometry1 const& geometry1,
GeometryOut& geometry_out,
Strategy const& strategy)
: m_geometry1(geometry1)
, m_geometry_out(geometry_out)
, m_strategy(strategy)
{}
template
bool operator()(Geometry2 const& geometry2) const
{
return intersection
<
Geometry1,
Geometry2
>::apply(m_geometry1, geometry2, m_geometry_out, m_strategy);
}
};
template
static inline bool
apply(Geometry1 const& geometry1,
variant const& geometry2,
GeometryOut& geometry_out,
Strategy const& strategy)
{
return boost::apply_visitor(visitor(geometry1,
geometry_out,
strategy),
geometry2);
}
};
template
struct intersection, variant >
{
template
struct visitor: static_visitor
{
GeometryOut& m_geometry_out;
Strategy const& m_strategy;
visitor(GeometryOut& geometry_out, Strategy const& strategy)
: m_geometry_out(geometry_out)
, m_strategy(strategy)
{}
template
bool operator()(Geometry1 const& geometry1,
Geometry2 const& geometry2) const
{
return intersection
<
Geometry1,
Geometry2
>::apply(geometry1, geometry2, m_geometry_out, m_strategy);
}
};
template
static inline bool
apply(variant const& geometry1,
variant const& geometry2,
GeometryOut& geometry_out,
Strategy const& strategy)
{
return boost::apply_visitor(visitor(geometry_out,
strategy),
geometry1, geometry2);
}
};
} // namespace resolve_variant
/*!
\brief \brief_calc2{intersection}
\ingroup intersection
\details \details_calc2{intersection, spatial set theoretic intersection}.
\tparam Geometry1 \tparam_geometry
\tparam Geometry2 \tparam_geometry
\tparam GeometryOut Collection of geometries (e.g. std::vector, std::deque, boost::geometry::multi*) of which
the value_type fulfills a \p_l_or_c concept, or it is the output geometry (e.g. for a box)
\tparam Strategy \tparam_strategy{Intersection}
\param geometry1 \param_geometry
\param geometry2 \param_geometry
\param geometry_out The output geometry, either a multi_point, multi_polygon,
multi_linestring, or a box (for intersection of two boxes)
\param strategy \param_strategy{intersection}
\qbk{distinguish,with strategy}
\qbk{[include reference/algorithms/intersection.qbk]}
*/
template
<
typename Geometry1,
typename Geometry2,
typename GeometryOut,
typename Strategy
>
inline bool intersection(Geometry1 const& geometry1,
Geometry2 const& geometry2,
GeometryOut& geometry_out,
Strategy const& strategy)
{
return resolve_variant::intersection
<
Geometry1,
Geometry2
>::apply(geometry1, geometry2, geometry_out, strategy);
}
/*!
\brief \brief_calc2{intersection}
\ingroup intersection
\details \details_calc2{intersection, spatial set theoretic intersection}.
\tparam Geometry1 \tparam_geometry
\tparam Geometry2 \tparam_geometry
\tparam GeometryOut Collection of geometries (e.g. std::vector, std::deque, boost::geometry::multi*) of which
the value_type fulfills a \p_l_or_c concept, or it is the output geometry (e.g. for a box)
\param geometry1 \param_geometry
\param geometry2 \param_geometry
\param geometry_out The output geometry, either a multi_point, multi_polygon,
multi_linestring, or a box (for intersection of two boxes)
\qbk{[include reference/algorithms/intersection.qbk]}
*/
template
<
typename Geometry1,
typename Geometry2,
typename GeometryOut
>
inline bool intersection(Geometry1 const& geometry1,
Geometry2 const& geometry2,
GeometryOut& geometry_out)
{
return resolve_variant::intersection
<
Geometry1,
Geometry2
>::apply(geometry1, geometry2, geometry_out, default_strategy());
}
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_INTERSECTION_INTERFACE_HPP