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// Boost.Geometry Index
//
// n-dimensional bounds
//
// Copyright (c) 2011-2014 Adam Wulkiewicz, Lodz, Poland.
//
// 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_INDEX_DETAIL_ALGORITHMS_BOUNDS_HPP
#define BOOST_GEOMETRY_INDEX_DETAIL_ALGORITHMS_BOUNDS_HPP
#include <boost/geometry/index/detail/bounded_view.hpp>
namespace boost { namespace geometry { namespace index { namespace detail {
namespace dispatch {
template <typename Geometry,
typename Bounds,
typename TagGeometry = typename geometry::tag<Geometry>::type,
typename TagBounds = typename geometry::tag<Bounds>::type>
struct bounds
{
static inline void apply(Geometry const& g, Bounds & b)
{
geometry::convert(g, b);
}
};
template <typename Geometry, typename Bounds>
struct bounds<Geometry, Bounds, segment_tag, box_tag>
{
static inline void apply(Geometry const& g, Bounds & b)
{
index::detail::bounded_view<Geometry, Bounds> v(g);
geometry::convert(v, b);
}
};
} // namespace dispatch
template <typename Geometry, typename Bounds>
inline void bounds(Geometry const& g, Bounds & b)
{
concept::check_concepts_and_equal_dimensions<Geometry const, Bounds>();
dispatch::bounds<Geometry, Bounds>::apply(g, b);
}
namespace dispatch {
template <typename Geometry,
typename TagGeometry = typename geometry::tag<Geometry>::type>
struct return_ref_or_bounds
{
typedef Geometry const& result_type;
static inline result_type apply(Geometry const& g)
{
return g;
}
};
template <typename Geometry>
struct return_ref_or_bounds<Geometry, segment_tag>
{
typedef typename point_type<Geometry>::type point_type;
typedef geometry::model::box<point_type> bounds_type;
typedef index::detail::bounded_view<Geometry, bounds_type> result_type;
static inline result_type apply(Geometry const& g)
{
return result_type(g);
}
};
} // namespace dispatch
template <typename Geometry>
inline
typename dispatch::return_ref_or_bounds<Geometry>::result_type
return_ref_or_bounds(Geometry const& g)
{
return dispatch::return_ref_or_bounds<Geometry>::apply(g);
}
}}}} // namespace boost::geometry::index::detail
#endif // BOOST_GEOMETRY_INDEX_DETAIL_ALGORITHMS_BOUNDS_HPP
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