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// Boost.Geometry Index
//
// This view makes possible to treat some simple primitives as its bounding geometry
// e.g. box, nsphere, etc.
//
// Copyright (c) 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_BOUNDED_VIEW_HPP
#define BOOST_GEOMETRY_INDEX_DETAIL_BOUNDED_VIEW_HPP
namespace boost { namespace geometry {
namespace index { namespace detail {
template <typename Geometry,
typename BoundingGeometry,
typename Tag = typename geometry::tag<Geometry>::type,
typename BoundingTag = typename geometry::tag<BoundingGeometry>::type>
struct bounded_view
{
BOOST_MPL_ASSERT_MSG(
(false),
NOT_IMPLEMENTED_FOR_THOSE_GEOMETRIES,
(BoundingTag, Tag));
};
// Segment -> Box
template <typename Segment, typename Box>
struct bounded_view<Segment, Box, segment_tag, box_tag>
{
public:
typedef typename geometry::coordinate_type<Box>::type coordinate_type;
explicit bounded_view(Segment const& segment)
: m_segment(segment)
{}
template <std::size_t Dimension>
inline coordinate_type get_min() const
{
return boost::numeric_cast<coordinate_type>(
(std::min)( geometry::get<0, Dimension>(m_segment),
geometry::get<1, Dimension>(m_segment) ) );
}
template <std::size_t Dimension>
inline coordinate_type get_max() const
{
return boost::numeric_cast<coordinate_type>(
(std::max)( geometry::get<0, Dimension>(m_segment),
geometry::get<1, Dimension>(m_segment) ) );
}
private:
Segment const& m_segment;
};
// Box -> Box
template <typename BoxIn, typename Box>
struct bounded_view<BoxIn, Box, box_tag, box_tag>
{
public:
typedef typename geometry::coordinate_type<Box>::type coordinate_type;
explicit bounded_view(BoxIn const& box)
: m_box(box)
{}
template <std::size_t Dimension>
inline coordinate_type get_min() const
{
return boost::numeric_cast<coordinate_type>(
geometry::get<min_corner, Dimension>(m_box) );
}
template <std::size_t Dimension>
inline coordinate_type get_max() const
{
return boost::numeric_cast<coordinate_type>(
geometry::get<max_corner, Dimension>(m_box) );
}
private:
BoxIn const& m_box;
};
// Point -> Box
template <typename Point, typename Box>
struct bounded_view<Point, Box, point_tag, box_tag>
{
public:
typedef typename geometry::coordinate_type<Box>::type coordinate_type;
explicit bounded_view(Point const& point)
: m_point(point)
{}
template <std::size_t Dimension>
inline coordinate_type get_min() const
{
return boost::numeric_cast<coordinate_type>(
geometry::get<Dimension>(m_point) );
}
template <std::size_t Dimension>
inline coordinate_type get_max() const
{
return boost::numeric_cast<coordinate_type>(
geometry::get<Dimension>(m_point) );
}
private:
Point const& m_point;
};
}} // namespace index::detail
// XXX -> Box
#ifndef DOXYGEN_NO_TRAITS_SPECIALIZATIONS
namespace traits
{
template <typename Geometry, typename Box, typename Tag>
struct tag< index::detail::bounded_view<Geometry, Box, Tag, box_tag> >
{
typedef box_tag type;
};
template <typename Segment, typename Box, typename Tag>
struct point_type< index::detail::bounded_view<Segment, Box, Tag, box_tag> >
{
typedef typename point_type<Box>::type type;
};
template <typename Segment, typename Box, typename Tag, std::size_t Dimension>
struct indexed_access<index::detail::bounded_view<Segment, Box, Tag, box_tag>,
min_corner, Dimension>
{
typedef index::detail::bounded_view<Segment, Box, Tag, box_tag> box_type;
typedef typename geometry::coordinate_type<Box>::type coordinate_type;
static inline coordinate_type get(box_type const& b)
{
return b.template get_min<Dimension>();
}
//static inline void set(box_type & b, coordinate_type const& value)
//{
// BOOST_ASSERT(false);
//}
};
template <typename Segment, typename Box, typename Tag, std::size_t Dimension>
struct indexed_access<index::detail::bounded_view<Segment, Box, Tag, box_tag>,
max_corner, Dimension>
{
typedef index::detail::bounded_view<Segment, Box, Tag, box_tag> box_type;
typedef typename geometry::coordinate_type<Box>::type coordinate_type;
static inline coordinate_type get(box_type const& b)
{
return b.template get_max<Dimension>();
}
//static inline void set(box_type & b, coordinate_type const& value)
//{
// BOOST_ASSERT(false);
//}
};
} // namespace traits
#endif // DOXYGEN_NO_TRAITS_SPECIALIZATIONS
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_INDEX_DETAIL_BOUNDED_VIEW_HPP
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