/usr/include/boost/geometry/algorithms/detail/distance
Edit: /usr/include/boost/geometry/algorithms/detail/distance/linear_to_linear.hpp (3601B)
// Boost.Geometry (aka GGL, Generic Geometry Library)
// Copyright (c) 2014, Oracle and/or its affiliates.
// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
// Licensed under the Boost Software License version 1.0.
// http://www.boost.org/users/license.html
#ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_LINEAR_TO_LINEAR_HPP
#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_LINEAR_TO_LINEAR_HPP
#include
#include
#include
#include
#include
#include
#include
#include
namespace boost { namespace geometry
{
#ifndef DOXYGEN_NO_DETAIL
namespace detail { namespace distance
{
template
struct linear_to_linear
{
typedef typename strategy::distance::services::return_type
<
Strategy,
typename point_type::type,
typename point_type::type
>::type return_type;
static inline return_type apply(Linear1 const& linear1,
Linear2 const& linear2,
Strategy const& strategy,
bool = false)
{
if (geometry::num_points(linear1) == 1)
{
return dispatch::distance
<
typename point_type::type,
Linear2,
Strategy
>::apply(*points_begin(linear1), linear2, strategy);
}
if (geometry::num_points(linear2) == 1)
{
return dispatch::distance
<
typename point_type::type,
Linear1,
Strategy
>::apply(*points_begin(linear2), linear1, strategy);
}
if (geometry::num_segments(linear2) < geometry::num_segments(linear1))
{
return point_or_segment_range_to_geometry_rtree
<
geometry::segment_iterator,
Linear1,
Strategy
>::apply(geometry::segments_begin(linear2),
geometry::segments_end(linear2),
linear1,
strategy);
}
return point_or_segment_range_to_geometry_rtree
<
geometry::segment_iterator,
Linear2,
Strategy
>::apply(geometry::segments_begin(linear1),
geometry::segments_end(linear1),
linear2,
strategy);
}
};
}} // namespace detail::distance
#endif // DOXYGEN_NO_DETAIL
#ifndef DOXYGEN_NO_DISPATCH
namespace dispatch
{
template
struct distance
<
Linear1, Linear2, Strategy,
linear_tag, linear_tag,
strategy_tag_distance_point_segment, false
> : detail::distance::linear_to_linear
<
Linear1, Linear2, Strategy
>
{};
} // namespace dispatch
#endif // DOXYGEN_NO_DISPATCH
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISTANCE_LINEAR_TO_LINEAR_HPP