12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576 |
- // 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
|