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// Boost.Geometry Index
//
// Sum values calculated for indexable's dimensions, used e.g. in R-tree k nearest neighbors query
//
// Copyright (c) 2011-2013 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_SUM_FOR_INDEXABLE_HPP
#define BOOST_GEOMETRY_INDEX_DETAIL_ALGORITHMS_SUM_FOR_INDEXABLE_HPP
namespace boost { namespace geometry { namespace index { namespace detail {
template <
typename Geometry,
typename Indexable,
typename IndexableTag,
typename AlgoTag,
size_t DimensionIndex>
struct sum_for_indexable_dimension
{
BOOST_MPL_ASSERT_MSG(
(false),
NOT_IMPLEMENTED_FOR_THIS_INDEXABLE_TAG_TYPE,
(sum_for_indexable_dimension));
};
template <
typename Geometry,
typename Indexable,
typename IndexableTag,
typename AlgoTag,
size_t N>
struct sum_for_indexable
{
typedef typename sum_for_indexable_dimension<
Geometry, Indexable, IndexableTag, AlgoTag, N - 1
>::result_type result_type;
inline static result_type apply(Geometry const& g, Indexable const& i)
{
return
sum_for_indexable<
Geometry, Indexable, IndexableTag, AlgoTag, N - 1
>::apply(g, i) +
sum_for_indexable_dimension<
Geometry, Indexable, IndexableTag, AlgoTag, N - 1
>::apply(g, i);
}
};
template <
typename Geometry,
typename Indexable,
typename IndexableTag,
typename AlgoTag>
struct sum_for_indexable<Geometry, Indexable, IndexableTag, AlgoTag, 1>
{
typedef typename sum_for_indexable_dimension<
Geometry, Indexable, IndexableTag, AlgoTag, 0
>::result_type result_type;
inline static result_type apply(Geometry const& g, Indexable const& i)
{
return
sum_for_indexable_dimension<
Geometry, Indexable, IndexableTag, AlgoTag, 0
>::apply(g, i);
}
};
}}}} // namespace boost::geometry::index::detail
#endif // BOOST_GEOMETRY_INDEX_DETAIL_ALGORITHMS_SUM_FOR_INDEXABLE_HPP
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