stabilize build system: depends, installer, boost/bdb fixes, cross targets groundwork
This commit is contained in:
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// Boost.Geometry Index
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//
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// R-tree queries range adaptors
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//
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// Copyright (c) 2011-2013 Adam Wulkiewicz, Lodz, Poland.
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//
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// Use, modification and distribution is subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_GEOMETRY_INDEX_DETAIL_RTREE_ADAPTORS_HPP
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#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_ADAPTORS_HPP
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#include <deque>
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#include <boost/static_assert.hpp>
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#include <boost/geometry/index/adaptors/query.hpp>
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namespace boost { namespace geometry { namespace index {
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template <typename Value, typename Options, typename IndexableGetter, typename EqualTo, typename Allocator>
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class rtree;
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namespace adaptors { namespace detail {
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template <typename Value, typename Options, typename IndexableGetter, typename EqualTo, typename Allocator>
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class query_range< index::rtree<Value, Options, IndexableGetter, EqualTo, Allocator> >
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{
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public:
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typedef std::vector<Value> result_type;
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typedef typename result_type::iterator iterator;
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typedef typename result_type::const_iterator const_iterator;
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template <typename Predicates> inline
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query_range(index::rtree<Value, Options, IndexableGetter, EqualTo, Allocator> const& rtree,
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Predicates const& pred)
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{
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rtree.query(pred, std::back_inserter(m_result));
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}
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inline iterator begin() { return m_result.begin(); }
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inline iterator end() { return m_result.end(); }
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inline const_iterator begin() const { return m_result.begin(); }
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inline const_iterator end() const { return m_result.end(); }
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private:
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result_type m_result;
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};
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}} // namespace adaptors::detail
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}}} // namespace boost::geometry::index
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#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_ADAPTORS_HPP
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@@ -0,0 +1,122 @@
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// Boost.Geometry Index
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//
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// R-tree iterators
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//
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// Copyright (c) 2011-2015 Adam Wulkiewicz, Lodz, Poland.
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//
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// Use, modification and distribution is subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_GEOMETRY_INDEX_DETAIL_RTREE_ITERATORS_HPP
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#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_ITERATORS_HPP
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namespace boost { namespace geometry { namespace index { namespace detail { namespace rtree { namespace iterators {
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template <typename Value, typename Allocators>
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struct end_iterator
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{
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typedef std::forward_iterator_tag iterator_category;
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typedef Value value_type;
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typedef typename Allocators::const_reference reference;
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typedef typename Allocators::difference_type difference_type;
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typedef typename Allocators::const_pointer pointer;
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reference operator*() const
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{
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BOOST_GEOMETRY_INDEX_ASSERT(false, "iterator not dereferencable");
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pointer p(0);
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return *p;
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}
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const value_type * operator->() const
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{
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BOOST_GEOMETRY_INDEX_ASSERT(false, "iterator not dereferencable");
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const value_type * p = 0;
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return p;
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}
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end_iterator & operator++()
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{
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BOOST_GEOMETRY_INDEX_ASSERT(false, "iterator not incrementable");
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return *this;
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}
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end_iterator operator++(int)
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{
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BOOST_GEOMETRY_INDEX_ASSERT(false, "iterator not incrementable");
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return *this;
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}
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friend bool operator==(end_iterator const& /*l*/, end_iterator const& /*r*/)
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{
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return true;
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}
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};
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template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
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class iterator
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{
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typedef visitors::iterator<Value, Options, Translator, Box, Allocators> visitor_type;
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typedef typename visitor_type::node_pointer node_pointer;
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public:
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typedef std::forward_iterator_tag iterator_category;
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typedef Value value_type;
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typedef typename Allocators::const_reference reference;
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typedef typename Allocators::difference_type difference_type;
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typedef typename Allocators::const_pointer pointer;
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inline iterator()
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{}
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inline iterator(node_pointer root)
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{
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m_visitor.initialize(root);
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}
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reference operator*() const
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{
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return m_visitor.dereference();
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}
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const value_type * operator->() const
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{
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return boost::addressof(m_visitor.dereference());
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}
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iterator & operator++()
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{
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m_visitor.increment();
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return *this;
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}
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iterator operator++(int)
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{
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iterator temp = *this;
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this->operator++();
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return temp;
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}
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friend bool operator==(iterator const& l, iterator const& r)
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{
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return l.m_visitor == r.m_visitor;
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}
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friend bool operator==(iterator const& l, end_iterator<Value, Allocators> const& /*r*/)
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{
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return l.m_visitor.is_end();
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}
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friend bool operator==(end_iterator<Value, Allocators> const& /*l*/, iterator const& r)
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{
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return r.m_visitor.is_end();
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}
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private:
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visitor_type m_visitor;
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};
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}}}}}} // namespace boost::geometry::index::detail::rtree::iterators
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#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_ITERATORS_HPP
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+16
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// Boost.Geometry Index
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//
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// R-tree kmeans algorithm implementation
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//
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// Copyright (c) 2011-2013 Adam Wulkiewicz, Lodz, Poland.
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//
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// Use, modification and distribution is subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_GEOMETRY_INDEX_DETAIL_RTREE_KMEANS_KMEANS_HPP
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#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_KMEANS_KMEANS_HPP
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#include <boost/geometry/index/rtree/kmeans/split.hpp>
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#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_KMEANS_KMEANS_HPP
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+87
@@ -0,0 +1,87 @@
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// Boost.Geometry Index
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//
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// R-tree kmeans split algorithm implementation
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//
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// Copyright (c) 2011-2013 Adam Wulkiewicz, Lodz, Poland.
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//
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// Use, modification and distribution is subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_GEOMETRY_INDEX_DETAIL_RTREE_KMEANS_SPLIT_HPP
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#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_KMEANS_SPLIT_HPP
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#include <boost/geometry/index/rtree/node/node.hpp>
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#include <boost/geometry/index/rtree/visitors/insert.hpp>
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namespace boost { namespace geometry { namespace index {
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namespace detail { namespace rtree {
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namespace kmeans {
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// some details
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} // namespace kmeans
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// split_kmeans_tag
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// OR
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// split_clusters_tag and redistribute_kmeans_tag - then redistribute will probably slightly different interface
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// or some other than "redistribute"
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// 1. for this algorithm one probably MUST USE NON-STATIC NODES with node_default_tag
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// or the algorithm must be changed somehow - to not store additional nodes in the current node
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// but return excessive element/elements container instead (possibly pushable_array<1> or std::vector)
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// this would also cause building of smaller trees since +1 element in nodes wouldn't be needed in different redistributing algorithms
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// 2. it is probably possible to add e.g. 2 levels of tree in one insert
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// Edge case is that every node split generates M + 1 children, in parent containing M nodes
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// result is 2M + 1 nodes in parent on this level
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// On next level the same, next the same and so on.
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// We have Depth*M+1 nodes in the root
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// The tree may then gain some > 1 levels in one insert
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// split::apply() manages this but special attention is required
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// which algorithm should be used to choose current node in traversing while inserting?
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// some of the currently used ones or some using mean values as well?
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// TODO
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// 1. Zmienic troche algorytm zeby przekazywal nadmiarowe elementy do split
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// i pobieral ze split nadmiarowe elementy rodzica
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// W zaleznosci od algorytmu w rozny sposob - l/q/r* powinny zwracac np pushable_array<1>
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// wtedy tez is_overerflow (z R* insert?) bedzie nieportrzebne
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// Dla kmeans zapewne std::vector, jednak w wezlach nadal moglaby byc pushable_array
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// 2. Fajnie byloby tez uproscic te wszystkie parametry root,parent,index itd. Mozliwe ze okazalyby sie zbedne
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// 3. Sprawdzyc czasy wykonywania i zajetosc pamieci
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// 4. Pamietac o parametryzacji kontenera z nadmiarowymi elementami
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// PS. Z R* reinsertami moze byc masakra
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template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
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class split<Value, Options, Translator, Box, Allocators, split_kmeans_tag>
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{
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protected:
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typedef typename rtree::node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type node;
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typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
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typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
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typedef typename Options::parameters_type parameters_type;
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public:
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template <typename Node>
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static inline void apply(node* & root_node,
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size_t & leafs_level,
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Node & n,
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internal_node *parent_node,
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size_t current_child_index,
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Translator const& tr,
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Allocators & allocators)
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{
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}
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};
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}} // namespace detail::rtree
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}}} // namespace boost::geometry::index
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#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_KMEANS_SPLIT_HPP
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+16
@@ -0,0 +1,16 @@
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// Boost.Geometry Index
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//
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// R-tree linear algorithm implementation
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//
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// Copyright (c) 2011-2013 Adam Wulkiewicz, Lodz, Poland.
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//
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// Use, modification and distribution is subject to the Boost Software License,
|
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
|
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_GEOMETRY_INDEX_DETAIL_RTREE_LINEAR_LINEAR_HPP
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#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_LINEAR_LINEAR_HPP
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#include <boost/geometry/index/detail/rtree/linear/redistribute_elements.hpp>
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#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_LINEAR_LINEAR_HPP
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+446
@@ -0,0 +1,446 @@
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// Boost.Geometry Index
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//
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// R-tree linear split algorithm implementation
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//
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// Copyright (c) 2008 Federico J. Fernandez.
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// Copyright (c) 2011-2014 Adam Wulkiewicz, Lodz, Poland.
|
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//
|
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// Use, modification and distribution is subject to the Boost Software License,
|
||||
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
|
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// http://www.boost.org/LICENSE_1_0.txt)
|
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|
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#ifndef BOOST_GEOMETRY_INDEX_DETAIL_RTREE_LINEAR_REDISTRIBUTE_ELEMENTS_HPP
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#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_LINEAR_REDISTRIBUTE_ELEMENTS_HPP
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#include <boost/type_traits/is_unsigned.hpp>
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#include <boost/geometry/index/detail/algorithms/content.hpp>
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#include <boost/geometry/index/detail/bounded_view.hpp>
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#include <boost/geometry/index/detail/rtree/node/node.hpp>
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#include <boost/geometry/index/detail/rtree/visitors/insert.hpp>
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#include <boost/geometry/index/detail/rtree/visitors/is_leaf.hpp>
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namespace boost { namespace geometry { namespace index {
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namespace detail { namespace rtree {
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namespace linear {
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template <typename R, typename T>
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inline R difference_dispatch(T const& from, T const& to, ::boost::mpl::bool_<false> const& /*is_unsigned*/)
|
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{
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return to - from;
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}
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template <typename R, typename T>
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inline R difference_dispatch(T const& from, T const& to, ::boost::mpl::bool_<true> const& /*is_unsigned*/)
|
||||
{
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return from <= to ? R(to - from) : -R(from - to);
|
||||
}
|
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|
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template <typename R, typename T>
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inline R difference(T const& from, T const& to)
|
||||
{
|
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BOOST_MPL_ASSERT_MSG(!boost::is_unsigned<R>::value, RESULT_CANT_BE_UNSIGNED, (R));
|
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|
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typedef ::boost::mpl::bool_<
|
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boost::is_unsigned<T>::value
|
||||
> is_unsigned;
|
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|
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return difference_dispatch<R>(from, to, is_unsigned());
|
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}
|
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|
||||
// TODO: awulkiew
|
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// In general, all aerial Indexables in the tree with box-like nodes will be analyzed as boxes
|
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// because they must fit into larger box. Therefore the algorithm could be the same for Bounds type.
|
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// E.g. if Bounds type is sphere, Indexables probably should be analyzed as spheres.
|
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// 1. View could be provided to 'see' all Indexables as Bounds type.
|
||||
// Not ok in the case of big types like Ring, however it's possible that Rings won't be supported,
|
||||
// only simple types. Even then if we consider storing Box inside the Sphere we must calculate
|
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// the bounding sphere 2x for each box because there are 2 loops. For each calculation this means
|
||||
// 4-2d or 8-3d expansions or -, / and sqrt().
|
||||
// 2. Additional container could be used and reused if the Indexable type is other than the Bounds type.
|
||||
|
||||
// IMPORTANT!
|
||||
// Still probably the best way would be providing specialized algorithms for each Indexable-Bounds pair!
|
||||
// Probably on pick_seeds algorithm level - For Bounds=Sphere seeds would be choosen differently
|
||||
|
||||
// TODO: awulkiew
|
||||
// there are loops inside find_greatest_normalized_separation::apply()
|
||||
// iteration is done for each DimensionIndex.
|
||||
// Separations and seeds for all DimensionIndex(es) could be calculated at once, stored, then the greatest would be choosen.
|
||||
|
||||
// The following struct/method was adapted for the preliminary version of the R-tree. Then it was called:
|
||||
// void find_normalized_separations(std::vector<Box> const& boxes, T& separation, unsigned int& first, unsigned int& second) const
|
||||
|
||||
template <typename Elements, typename Parameters, typename Translator, typename Tag, size_t DimensionIndex>
|
||||
struct find_greatest_normalized_separation
|
||||
{
|
||||
typedef typename Elements::value_type element_type;
|
||||
typedef typename rtree::element_indexable_type<element_type, Translator>::type indexable_type;
|
||||
typedef typename coordinate_type<indexable_type>::type coordinate_type;
|
||||
|
||||
typedef typename boost::mpl::if_c<
|
||||
boost::is_integral<coordinate_type>::value,
|
||||
double,
|
||||
coordinate_type
|
||||
>::type separation_type;
|
||||
|
||||
typedef typename geometry::point_type<indexable_type>::type point_type;
|
||||
typedef geometry::model::box<point_type> bounds_type;
|
||||
typedef index::detail::bounded_view<indexable_type, bounds_type> bounded_view_type;
|
||||
|
||||
static inline void apply(Elements const& elements,
|
||||
Parameters const& parameters,
|
||||
Translator const& translator,
|
||||
separation_type & separation,
|
||||
size_t & seed1,
|
||||
size_t & seed2)
|
||||
{
|
||||
const size_t elements_count = parameters.get_max_elements() + 1;
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(elements.size() == elements_count, "unexpected number of elements");
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(2 <= elements_count, "unexpected number of elements");
|
||||
|
||||
// find the lowest low, highest high
|
||||
bounded_view_type bounded_indexable_0(rtree::element_indexable(elements[0], translator));
|
||||
coordinate_type lowest_low = geometry::get<min_corner, DimensionIndex>(bounded_indexable_0);
|
||||
coordinate_type highest_high = geometry::get<max_corner, DimensionIndex>(bounded_indexable_0);
|
||||
|
||||
// and the lowest high
|
||||
coordinate_type lowest_high = highest_high;
|
||||
size_t lowest_high_index = 0;
|
||||
for ( size_t i = 1 ; i < elements_count ; ++i )
|
||||
{
|
||||
bounded_view_type bounded_indexable(rtree::element_indexable(elements[i], translator));
|
||||
coordinate_type min_coord = geometry::get<min_corner, DimensionIndex>(bounded_indexable);
|
||||
coordinate_type max_coord = geometry::get<max_corner, DimensionIndex>(bounded_indexable);
|
||||
|
||||
if ( max_coord < lowest_high )
|
||||
{
|
||||
lowest_high = max_coord;
|
||||
lowest_high_index = i;
|
||||
}
|
||||
|
||||
if ( min_coord < lowest_low )
|
||||
lowest_low = min_coord;
|
||||
|
||||
if ( highest_high < max_coord )
|
||||
highest_high = max_coord;
|
||||
}
|
||||
|
||||
// find the highest low
|
||||
size_t highest_low_index = lowest_high_index == 0 ? 1 : 0;
|
||||
bounded_view_type bounded_indexable_hl(rtree::element_indexable(elements[highest_low_index], translator));
|
||||
coordinate_type highest_low = geometry::get<min_corner, DimensionIndex>(bounded_indexable_hl);
|
||||
for ( size_t i = highest_low_index ; i < elements_count ; ++i )
|
||||
{
|
||||
bounded_view_type bounded_indexable(rtree::element_indexable(elements[i], translator));
|
||||
coordinate_type min_coord = geometry::get<min_corner, DimensionIndex>(bounded_indexable);
|
||||
if ( highest_low < min_coord &&
|
||||
i != lowest_high_index )
|
||||
{
|
||||
highest_low = min_coord;
|
||||
highest_low_index = i;
|
||||
}
|
||||
}
|
||||
|
||||
coordinate_type const width = highest_high - lowest_low;
|
||||
|
||||
// highest_low - lowest_high
|
||||
separation = difference<separation_type>(lowest_high, highest_low);
|
||||
// BOOST_GEOMETRY_INDEX_ASSERT(0 <= width);
|
||||
if ( std::numeric_limits<coordinate_type>::epsilon() < width )
|
||||
separation /= width;
|
||||
|
||||
seed1 = highest_low_index;
|
||||
seed2 = lowest_high_index;
|
||||
|
||||
::boost::ignore_unused_variable_warning(parameters);
|
||||
}
|
||||
};
|
||||
|
||||
// Version for points doesn't calculate normalized separation since it would always be equal to 1
|
||||
// It returns two seeds most distant to each other, separation is equal to distance
|
||||
template <typename Elements, typename Parameters, typename Translator, size_t DimensionIndex>
|
||||
struct find_greatest_normalized_separation<Elements, Parameters, Translator, point_tag, DimensionIndex>
|
||||
{
|
||||
typedef typename Elements::value_type element_type;
|
||||
typedef typename rtree::element_indexable_type<element_type, Translator>::type indexable_type;
|
||||
typedef typename coordinate_type<indexable_type>::type coordinate_type;
|
||||
|
||||
typedef coordinate_type separation_type;
|
||||
|
||||
static inline void apply(Elements const& elements,
|
||||
Parameters const& parameters,
|
||||
Translator const& translator,
|
||||
separation_type & separation,
|
||||
size_t & seed1,
|
||||
size_t & seed2)
|
||||
{
|
||||
const size_t elements_count = parameters.get_max_elements() + 1;
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(elements.size() == elements_count, "unexpected number of elements");
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(2 <= elements_count, "unexpected number of elements");
|
||||
|
||||
// find the lowest low, highest high
|
||||
coordinate_type lowest = geometry::get<DimensionIndex>(rtree::element_indexable(elements[0], translator));
|
||||
coordinate_type highest = geometry::get<DimensionIndex>(rtree::element_indexable(elements[0], translator));
|
||||
size_t lowest_index = 0;
|
||||
size_t highest_index = 0;
|
||||
for ( size_t i = 1 ; i < elements_count ; ++i )
|
||||
{
|
||||
coordinate_type coord = geometry::get<DimensionIndex>(rtree::element_indexable(elements[i], translator));
|
||||
|
||||
if ( coord < lowest )
|
||||
{
|
||||
lowest = coord;
|
||||
lowest_index = i;
|
||||
}
|
||||
|
||||
if ( highest < coord )
|
||||
{
|
||||
highest = coord;
|
||||
highest_index = i;
|
||||
}
|
||||
}
|
||||
|
||||
separation = highest - lowest;
|
||||
seed1 = lowest_index;
|
||||
seed2 = highest_index;
|
||||
|
||||
if ( lowest_index == highest_index )
|
||||
seed2 = (lowest_index + 1) % elements_count; // % is just in case since if this is true lowest_index is 0
|
||||
|
||||
::boost::ignore_unused_variable_warning(parameters);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Elements, typename Parameters, typename Translator, size_t Dimension>
|
||||
struct pick_seeds_impl
|
||||
{
|
||||
BOOST_STATIC_ASSERT(0 < Dimension);
|
||||
|
||||
typedef typename Elements::value_type element_type;
|
||||
typedef typename rtree::element_indexable_type<element_type, Translator>::type indexable_type;
|
||||
|
||||
typedef find_greatest_normalized_separation<
|
||||
Elements, Parameters, Translator,
|
||||
typename tag<indexable_type>::type, Dimension - 1
|
||||
> find_norm_sep;
|
||||
|
||||
typedef typename find_norm_sep::separation_type separation_type;
|
||||
|
||||
static inline void apply(Elements const& elements,
|
||||
Parameters const& parameters,
|
||||
Translator const& tr,
|
||||
separation_type & separation,
|
||||
size_t & seed1,
|
||||
size_t & seed2)
|
||||
{
|
||||
pick_seeds_impl<Elements, Parameters, Translator, Dimension - 1>::apply(elements, parameters, tr, separation, seed1, seed2);
|
||||
|
||||
separation_type current_separation;
|
||||
size_t s1, s2;
|
||||
find_norm_sep::apply(elements, parameters, tr, current_separation, s1, s2);
|
||||
|
||||
// in the old implementation different operator was used: <= (y axis prefered)
|
||||
if ( separation < current_separation )
|
||||
{
|
||||
separation = current_separation;
|
||||
seed1 = s1;
|
||||
seed2 = s2;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Elements, typename Parameters, typename Translator>
|
||||
struct pick_seeds_impl<Elements, Parameters, Translator, 1>
|
||||
{
|
||||
typedef typename Elements::value_type element_type;
|
||||
typedef typename rtree::element_indexable_type<element_type, Translator>::type indexable_type;
|
||||
typedef typename coordinate_type<indexable_type>::type coordinate_type;
|
||||
|
||||
typedef find_greatest_normalized_separation<
|
||||
Elements, Parameters, Translator,
|
||||
typename tag<indexable_type>::type, 0
|
||||
> find_norm_sep;
|
||||
|
||||
typedef typename find_norm_sep::separation_type separation_type;
|
||||
|
||||
static inline void apply(Elements const& elements,
|
||||
Parameters const& parameters,
|
||||
Translator const& tr,
|
||||
separation_type & separation,
|
||||
size_t & seed1,
|
||||
size_t & seed2)
|
||||
{
|
||||
find_norm_sep::apply(elements, parameters, tr, separation, seed1, seed2);
|
||||
}
|
||||
};
|
||||
|
||||
// from void linear_pick_seeds(node_pointer const& n, unsigned int &seed1, unsigned int &seed2) const
|
||||
|
||||
template <typename Elements, typename Parameters, typename Translator>
|
||||
inline void pick_seeds(Elements const& elements,
|
||||
Parameters const& parameters,
|
||||
Translator const& tr,
|
||||
size_t & seed1,
|
||||
size_t & seed2)
|
||||
{
|
||||
typedef typename Elements::value_type element_type;
|
||||
typedef typename rtree::element_indexable_type<element_type, Translator>::type indexable_type;
|
||||
|
||||
typedef pick_seeds_impl
|
||||
<
|
||||
Elements, Parameters, Translator,
|
||||
geometry::dimension<indexable_type>::value
|
||||
> impl;
|
||||
typedef typename impl::separation_type separation_type;
|
||||
|
||||
separation_type separation = 0;
|
||||
impl::apply(elements, parameters, tr, separation, seed1, seed2);
|
||||
}
|
||||
|
||||
} // namespace linear
|
||||
|
||||
// from void split_node(node_pointer const& n, node_pointer& n1, node_pointer& n2) const
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
struct redistribute_elements<Value, Options, Translator, Box, Allocators, linear_tag>
|
||||
{
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
typedef typename rtree::node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
template <typename Node>
|
||||
static inline void apply(Node & n,
|
||||
Node & second_node,
|
||||
Box & box1,
|
||||
Box & box2,
|
||||
parameters_type const& parameters,
|
||||
Translator const& translator,
|
||||
Allocators & allocators)
|
||||
{
|
||||
typedef typename rtree::elements_type<Node>::type elements_type;
|
||||
typedef typename elements_type::value_type element_type;
|
||||
typedef typename rtree::element_indexable_type<element_type, Translator>::type indexable_type;
|
||||
typedef typename index::detail::default_content_result<Box>::type content_type;
|
||||
|
||||
elements_type & elements1 = rtree::elements(n);
|
||||
elements_type & elements2 = rtree::elements(second_node);
|
||||
const size_t elements1_count = parameters.get_max_elements() + 1;
|
||||
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(elements1.size() == elements1_count, "unexpected number of elements");
|
||||
|
||||
// copy original elements - use in-memory storage (std::allocator)
|
||||
// TODO: move if noexcept
|
||||
typedef typename rtree::container_from_elements_type<elements_type, element_type>::type
|
||||
container_type;
|
||||
container_type elements_copy(elements1.begin(), elements1.end()); // MAY THROW, STRONG (alloc, copy)
|
||||
|
||||
// calculate initial seeds
|
||||
size_t seed1 = 0;
|
||||
size_t seed2 = 0;
|
||||
linear::pick_seeds(elements_copy, parameters, translator, seed1, seed2);
|
||||
|
||||
// prepare nodes' elements containers
|
||||
elements1.clear();
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(elements2.empty(), "unexpected container state");
|
||||
|
||||
BOOST_TRY
|
||||
{
|
||||
// add seeds
|
||||
elements1.push_back(elements_copy[seed1]); // MAY THROW, STRONG (copy)
|
||||
elements2.push_back(elements_copy[seed2]); // MAY THROW, STRONG (alloc, copy)
|
||||
|
||||
// calculate boxes
|
||||
detail::bounds(rtree::element_indexable(elements_copy[seed1], translator), box1);
|
||||
detail::bounds(rtree::element_indexable(elements_copy[seed2], translator), box2);
|
||||
|
||||
// initialize areas
|
||||
content_type content1 = index::detail::content(box1);
|
||||
content_type content2 = index::detail::content(box2);
|
||||
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(2 <= elements1_count, "unexpected elements number");
|
||||
size_t remaining = elements1_count - 2;
|
||||
|
||||
// redistribute the rest of the elements
|
||||
for ( size_t i = 0 ; i < elements1_count ; ++i )
|
||||
{
|
||||
if (i != seed1 && i != seed2)
|
||||
{
|
||||
element_type const& elem = elements_copy[i];
|
||||
indexable_type const& indexable = rtree::element_indexable(elem, translator);
|
||||
|
||||
// if there is small number of elements left and the number of elements in node is lesser than min_elems
|
||||
// just insert them to this node
|
||||
if ( elements1.size() + remaining <= parameters.get_min_elements() )
|
||||
{
|
||||
elements1.push_back(elem); // MAY THROW, STRONG (copy)
|
||||
geometry::expand(box1, indexable);
|
||||
content1 = index::detail::content(box1);
|
||||
}
|
||||
else if ( elements2.size() + remaining <= parameters.get_min_elements() )
|
||||
{
|
||||
elements2.push_back(elem); // MAY THROW, STRONG (alloc, copy)
|
||||
geometry::expand(box2, indexable);
|
||||
content2 = index::detail::content(box2);
|
||||
}
|
||||
// choose better node and insert element
|
||||
else
|
||||
{
|
||||
// calculate enlarged boxes and areas
|
||||
Box enlarged_box1(box1);
|
||||
Box enlarged_box2(box2);
|
||||
geometry::expand(enlarged_box1, indexable);
|
||||
geometry::expand(enlarged_box2, indexable);
|
||||
content_type enlarged_content1 = index::detail::content(enlarged_box1);
|
||||
content_type enlarged_content2 = index::detail::content(enlarged_box2);
|
||||
|
||||
content_type content_increase1 = enlarged_content1 - content1;
|
||||
content_type content_increase2 = enlarged_content2 - content2;
|
||||
|
||||
// choose group which box content have to be enlarged least or has smaller content or has fewer elements
|
||||
if ( content_increase1 < content_increase2 ||
|
||||
( content_increase1 == content_increase2 &&
|
||||
( content1 < content2 ||
|
||||
( content1 == content2 && elements1.size() <= elements2.size() ) ) ) )
|
||||
{
|
||||
elements1.push_back(elem); // MAY THROW, STRONG (copy)
|
||||
box1 = enlarged_box1;
|
||||
content1 = enlarged_content1;
|
||||
}
|
||||
else
|
||||
{
|
||||
elements2.push_back(elem); // MAY THROW, STRONG (alloc, copy)
|
||||
box2 = enlarged_box2;
|
||||
content2 = enlarged_content2;
|
||||
}
|
||||
}
|
||||
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(0 < remaining, "unexpected value");
|
||||
--remaining;
|
||||
}
|
||||
}
|
||||
}
|
||||
BOOST_CATCH(...)
|
||||
{
|
||||
elements1.clear();
|
||||
elements2.clear();
|
||||
|
||||
rtree::destroy_elements<Value, Options, Translator, Box, Allocators>::apply(elements_copy, allocators);
|
||||
//elements_copy.clear();
|
||||
|
||||
BOOST_RETHROW // RETHROW, BASIC
|
||||
}
|
||||
BOOST_CATCH_END
|
||||
}
|
||||
};
|
||||
|
||||
}} // namespace detail::rtree
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_LINEAR_REDISTRIBUTE_ELEMENTS_HPP
|
||||
+85
@@ -0,0 +1,85 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree node concept
|
||||
//
|
||||
// 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_RTREE_NODE_CONCEPT_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_CONCEPT_HPP
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree {
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
||||
struct node
|
||||
{
|
||||
BOOST_MPL_ASSERT_MSG(
|
||||
(false),
|
||||
NOT_IMPLEMENTED_FOR_THIS_TAG_TYPE,
|
||||
(node));
|
||||
};
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
||||
struct internal_node
|
||||
{
|
||||
BOOST_MPL_ASSERT_MSG(
|
||||
(false),
|
||||
NOT_IMPLEMENTED_FOR_THIS_TAG_TYPE,
|
||||
(internal_node));
|
||||
};
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
||||
struct leaf
|
||||
{
|
||||
BOOST_MPL_ASSERT_MSG(
|
||||
(false),
|
||||
NOT_IMPLEMENTED_FOR_THIS_TAG_TYPE,
|
||||
(leaf));
|
||||
};
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag, bool IsVisitableConst>
|
||||
struct visitor
|
||||
{
|
||||
BOOST_MPL_ASSERT_MSG(
|
||||
(false),
|
||||
NOT_IMPLEMENTED_FOR_THIS_TAG_TYPE,
|
||||
(visitor));
|
||||
};
|
||||
|
||||
template <typename Allocator, typename Value, typename Parameters, typename Box, typename Tag>
|
||||
class allocators
|
||||
{
|
||||
BOOST_MPL_ASSERT_MSG(
|
||||
(false),
|
||||
NOT_IMPLEMENTED_FOR_THIS_TAG_TYPE,
|
||||
(allocators));
|
||||
};
|
||||
|
||||
template <typename Allocators, typename Node>
|
||||
struct create_node
|
||||
{
|
||||
BOOST_MPL_ASSERT_MSG(
|
||||
(false),
|
||||
NOT_IMPLEMENTED_FOR_THIS_NODE_TYPE,
|
||||
(create_node));
|
||||
};
|
||||
|
||||
template <typename Allocators, typename Node>
|
||||
struct destroy_node
|
||||
{
|
||||
BOOST_MPL_ASSERT_MSG(
|
||||
(false),
|
||||
NOT_IMPLEMENTED_FOR_THIS_NODE_TYPE,
|
||||
(destroy_node));
|
||||
};
|
||||
|
||||
}} // namespace detail::rtree
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_CONCEPT_HPP
|
||||
@@ -0,0 +1,212 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree nodes
|
||||
//
|
||||
// Copyright (c) 2011-2015 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_RTREE_NODE_NODE_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_NODE_HPP
|
||||
|
||||
#include <boost/container/vector.hpp>
|
||||
#include <boost/geometry/index/detail/varray.hpp>
|
||||
|
||||
#include <boost/geometry/index/detail/rtree/node/concept.hpp>
|
||||
#include <boost/geometry/index/detail/rtree/node/pairs.hpp>
|
||||
#include <boost/geometry/index/detail/rtree/node/node_elements.hpp>
|
||||
#include <boost/geometry/index/detail/rtree/node/scoped_deallocator.hpp>
|
||||
|
||||
//#include <boost/geometry/index/detail/rtree/node/weak_visitor.hpp>
|
||||
//#include <boost/geometry/index/detail/rtree/node/weak_dynamic.hpp>
|
||||
//#include <boost/geometry/index/detail/rtree/node/weak_static.hpp>
|
||||
|
||||
#include <boost/geometry/index/detail/rtree/node/variant_visitor.hpp>
|
||||
#include <boost/geometry/index/detail/rtree/node/variant_dynamic.hpp>
|
||||
#include <boost/geometry/index/detail/rtree/node/variant_static.hpp>
|
||||
|
||||
#include <boost/geometry/index/detail/rtree/node/subtree_destroyer.hpp>
|
||||
|
||||
#include <boost/geometry/algorithms/expand.hpp>
|
||||
|
||||
#include <boost/geometry/index/detail/rtree/visitors/is_leaf.hpp>
|
||||
|
||||
#include <boost/geometry/index/detail/algorithms/bounds.hpp>
|
||||
#include <boost/geometry/index/detail/is_bounding_geometry.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree {
|
||||
|
||||
// elements box
|
||||
|
||||
template <typename Box, typename FwdIter, typename Translator>
|
||||
inline Box elements_box(FwdIter first, FwdIter last, Translator const& tr)
|
||||
{
|
||||
Box result;
|
||||
|
||||
// Only here to suppress 'uninitialized local variable used' warning
|
||||
// until the suggestion below is not implemented
|
||||
geometry::assign_inverse(result);
|
||||
|
||||
//BOOST_GEOMETRY_INDEX_ASSERT(first != last, "non-empty range required");
|
||||
// NOTE: this is not elegant temporary solution,
|
||||
// reference to box could be passed as parameter and bool returned
|
||||
if ( first == last )
|
||||
return result;
|
||||
|
||||
detail::bounds(element_indexable(*first, tr), result);
|
||||
++first;
|
||||
|
||||
for ( ; first != last ; ++first )
|
||||
geometry::expand(result, element_indexable(*first, tr));
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
// Enlarge bounds of a leaf node WRT epsilon if needed.
|
||||
// It's because Points and Segments are compared WRT machine epsilon.
|
||||
// This ensures that leafs bounds correspond to the stored elements.
|
||||
// NOTE: this is done only if the Indexable is not a Box
|
||||
// in the future don't do it also for NSphere
|
||||
template <typename Box, typename FwdIter, typename Translator>
|
||||
inline Box values_box(FwdIter first, FwdIter last, Translator const& tr)
|
||||
{
|
||||
typedef typename std::iterator_traits<FwdIter>::value_type element_type;
|
||||
BOOST_MPL_ASSERT_MSG((is_leaf_element<element_type>::value),
|
||||
SHOULD_BE_CALLED_ONLY_FOR_LEAF_ELEMENTS,
|
||||
(element_type));
|
||||
|
||||
Box result = elements_box<Box>(first, last, tr);
|
||||
|
||||
#ifdef BOOST_GEOMETRY_INDEX_EXPERIMENTAL_ENLARGE_BY_EPSILON
|
||||
if (BOOST_GEOMETRY_CONDITION((
|
||||
! is_bounding_geometry
|
||||
<
|
||||
typename indexable_type<Translator>::type
|
||||
>::value)))
|
||||
{
|
||||
geometry::detail::expand_by_epsilon(result);
|
||||
}
|
||||
#endif
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
// destroys subtree if the element is internal node's element
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
struct destroy_element
|
||||
{
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
typedef typename rtree::internal_node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef rtree::subtree_destroyer<Value, Options, Translator, Box, Allocators> subtree_destroyer;
|
||||
|
||||
inline static void apply(typename internal_node::elements_type::value_type & element, Allocators & allocators)
|
||||
{
|
||||
subtree_destroyer dummy(element.second, allocators);
|
||||
element.second = 0;
|
||||
}
|
||||
|
||||
inline static void apply(typename leaf::elements_type::value_type &, Allocators &) {}
|
||||
};
|
||||
|
||||
// destroys stored subtrees if internal node's elements are passed
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
struct destroy_elements
|
||||
{
|
||||
template <typename Range>
|
||||
inline static void apply(Range & elements, Allocators & allocators)
|
||||
{
|
||||
apply(boost::begin(elements), boost::end(elements), allocators);
|
||||
}
|
||||
|
||||
template <typename It>
|
||||
inline static void apply(It first, It last, Allocators & allocators)
|
||||
{
|
||||
typedef boost::mpl::bool_<
|
||||
boost::is_same<
|
||||
Value, typename std::iterator_traits<It>::value_type
|
||||
>::value
|
||||
> is_range_of_values;
|
||||
|
||||
apply_dispatch(first, last, allocators, is_range_of_values());
|
||||
}
|
||||
|
||||
private:
|
||||
template <typename It>
|
||||
inline static void apply_dispatch(It first, It last, Allocators & allocators,
|
||||
boost::mpl::bool_<false> const& /*is_range_of_values*/)
|
||||
{
|
||||
typedef rtree::subtree_destroyer<Value, Options, Translator, Box, Allocators> subtree_destroyer;
|
||||
|
||||
for ( ; first != last ; ++first )
|
||||
{
|
||||
subtree_destroyer dummy(first->second, allocators);
|
||||
first->second = 0;
|
||||
}
|
||||
}
|
||||
|
||||
template <typename It>
|
||||
inline static void apply_dispatch(It /*first*/, It /*last*/, Allocators & /*allocators*/,
|
||||
boost::mpl::bool_<true> const& /*is_range_of_values*/)
|
||||
{}
|
||||
};
|
||||
|
||||
// clears node, deletes all subtrees stored in node
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
struct clear_node
|
||||
{
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
typedef typename rtree::node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
inline static void apply(node & node, Allocators & allocators)
|
||||
{
|
||||
rtree::visitors::is_leaf<Value, Options, Box, Allocators> ilv;
|
||||
rtree::apply_visitor(ilv, node);
|
||||
if ( ilv.result )
|
||||
{
|
||||
apply(rtree::get<leaf>(node), allocators);
|
||||
}
|
||||
else
|
||||
{
|
||||
apply(rtree::get<internal_node>(node), allocators);
|
||||
}
|
||||
}
|
||||
|
||||
inline static void apply(internal_node & internal_node, Allocators & allocators)
|
||||
{
|
||||
destroy_elements<Value, Options, Translator, Box, Allocators>::apply(rtree::elements(internal_node), allocators);
|
||||
rtree::elements(internal_node).clear();
|
||||
}
|
||||
|
||||
inline static void apply(leaf & leaf, Allocators &)
|
||||
{
|
||||
rtree::elements(leaf).clear();
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Container, typename Iterator>
|
||||
void move_from_back(Container & container, Iterator it)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(!container.empty(), "cannot copy from empty container");
|
||||
Iterator back_it = container.end();
|
||||
--back_it;
|
||||
if ( it != back_it )
|
||||
{
|
||||
*it = boost::move(*back_it); // MAY THROW (copy)
|
||||
}
|
||||
}
|
||||
|
||||
}} // namespace detail::rtree
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_NODE_HPP
|
||||
+110
@@ -0,0 +1,110 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree node elements access
|
||||
//
|
||||
// Copyright (c) 2011-2015 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_RTREE_NODE_NODE_ELEMENTS_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_NODE_ELEMENTS_HPP
|
||||
|
||||
#include <boost/container/vector.hpp>
|
||||
#include <boost/geometry/algorithms/detail/expand_by_epsilon.hpp>
|
||||
#include <boost/geometry/index/detail/varray.hpp>
|
||||
#include <boost/geometry/index/detail/rtree/node/pairs.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree {
|
||||
|
||||
// element's indexable type
|
||||
|
||||
template <typename Element, typename Translator>
|
||||
struct element_indexable_type
|
||||
{
|
||||
typedef typename indexable_type<Translator>::type type;
|
||||
};
|
||||
|
||||
template <typename First, typename Pointer, typename Translator>
|
||||
struct element_indexable_type<
|
||||
rtree::ptr_pair<First, Pointer>,
|
||||
Translator
|
||||
>
|
||||
{
|
||||
typedef First type;
|
||||
};
|
||||
|
||||
// is leaf element
|
||||
|
||||
template <typename Element>
|
||||
struct is_leaf_element
|
||||
{
|
||||
static const bool value = true;
|
||||
};
|
||||
|
||||
template <typename First, typename Pointer>
|
||||
struct is_leaf_element< rtree::ptr_pair<First, Pointer> >
|
||||
{
|
||||
static const bool value = false;
|
||||
};
|
||||
|
||||
// element's indexable getter
|
||||
|
||||
template <typename Element, typename Translator>
|
||||
typename result_type<Translator>::type
|
||||
element_indexable(Element const& el, Translator const& tr)
|
||||
{
|
||||
return tr(el);
|
||||
}
|
||||
|
||||
template <typename First, typename Pointer, typename Translator>
|
||||
First const&
|
||||
element_indexable(rtree::ptr_pair<First, Pointer> const& el, Translator const& /*tr*/)
|
||||
{
|
||||
return el.first;
|
||||
}
|
||||
|
||||
// nodes elements
|
||||
|
||||
template <typename Node>
|
||||
struct elements_type
|
||||
{
|
||||
typedef typename Node::elements_type type;
|
||||
};
|
||||
|
||||
template <typename Node>
|
||||
inline typename elements_type<Node>::type &
|
||||
elements(Node & n)
|
||||
{
|
||||
return n.elements;
|
||||
}
|
||||
|
||||
template <typename Node>
|
||||
inline typename elements_type<Node>::type const&
|
||||
elements(Node const& n)
|
||||
{
|
||||
return n.elements;
|
||||
}
|
||||
|
||||
// elements derived type
|
||||
|
||||
template <typename Elements, typename NewValue>
|
||||
struct container_from_elements_type
|
||||
{
|
||||
typedef boost::container::vector<NewValue> type;
|
||||
};
|
||||
|
||||
template <typename OldValue, size_t N, typename NewValue>
|
||||
struct container_from_elements_type<detail::varray<OldValue, N>, NewValue>
|
||||
{
|
||||
typedef detail::varray<NewValue, N> type;
|
||||
};
|
||||
|
||||
}} // namespace detail::rtree
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_NODE_ELEMENTS_HPP
|
||||
@@ -0,0 +1,71 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// Pairs intended to be used internally in nodes.
|
||||
//
|
||||
// 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_RTREE_NODE_PAIRS_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_PAIRS_HPP
|
||||
|
||||
#include <boost/move/move.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree {
|
||||
|
||||
template <typename First, typename Pointer>
|
||||
class ptr_pair
|
||||
{
|
||||
public:
|
||||
typedef First first_type;
|
||||
typedef Pointer second_type;
|
||||
ptr_pair(First const& f, Pointer s) : first(f), second(s) {}
|
||||
//ptr_pair(ptr_pair const& p) : first(p.first), second(p.second) {}
|
||||
//ptr_pair & operator=(ptr_pair const& p) { first = p.first; second = p.second; return *this; }
|
||||
|
||||
first_type first;
|
||||
second_type second;
|
||||
};
|
||||
|
||||
template <typename First, typename Pointer> inline
|
||||
ptr_pair<First, Pointer>
|
||||
make_ptr_pair(First const& f, Pointer s)
|
||||
{
|
||||
return ptr_pair<First, Pointer>(f, s);
|
||||
}
|
||||
|
||||
// TODO: It this will be used, rename it to unique_ptr_pair and possibly use unique_ptr.
|
||||
|
||||
template <typename First, typename Pointer>
|
||||
class exclusive_ptr_pair
|
||||
{
|
||||
BOOST_MOVABLE_BUT_NOT_COPYABLE(exclusive_ptr_pair)
|
||||
public:
|
||||
typedef First first_type;
|
||||
typedef Pointer second_type;
|
||||
exclusive_ptr_pair(First const& f, Pointer s) : first(f), second(s) {}
|
||||
|
||||
// INFO - members aren't really moved!
|
||||
exclusive_ptr_pair(BOOST_RV_REF(exclusive_ptr_pair) p) : first(p.first), second(p.second) { p.second = 0; }
|
||||
exclusive_ptr_pair & operator=(BOOST_RV_REF(exclusive_ptr_pair) p) { first = p.first; second = p.second; p.second = 0; return *this; }
|
||||
|
||||
first_type first;
|
||||
second_type second;
|
||||
};
|
||||
|
||||
template <typename First, typename Pointer> inline
|
||||
exclusive_ptr_pair<First, Pointer>
|
||||
make_exclusive_ptr_pair(First const& f, Pointer s)
|
||||
{
|
||||
return exclusive_ptr_pair<First, Pointer>(f, s);
|
||||
}
|
||||
|
||||
}} // namespace detail::rtree
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_PAIRS_HPP
|
||||
+48
@@ -0,0 +1,48 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree scoped deallocator
|
||||
//
|
||||
// Copyright (c) 2011-2015 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_RTREE_NODE_SCOPED_DEALLOCATOR_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_SCOPED_DEALLOCATOR_HPP
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree {
|
||||
|
||||
template <typename Alloc>
|
||||
class scoped_deallocator
|
||||
{
|
||||
scoped_deallocator(scoped_deallocator const&);
|
||||
scoped_deallocator & operator=(scoped_deallocator const&);
|
||||
public:
|
||||
typedef typename Alloc::pointer pointer;
|
||||
inline scoped_deallocator(pointer p, Alloc & a)
|
||||
: m_ptr(p), m_alloc(a)
|
||||
{}
|
||||
inline ~scoped_deallocator()
|
||||
{
|
||||
if ( m_ptr )
|
||||
{
|
||||
boost::container::allocator_traits<Alloc>::deallocate(m_alloc, m_ptr, 1);
|
||||
}
|
||||
}
|
||||
inline void release()
|
||||
{
|
||||
m_ptr = 0;
|
||||
}
|
||||
private:
|
||||
pointer m_ptr;
|
||||
Alloc & m_alloc;
|
||||
};
|
||||
|
||||
}} // namespace detail::rtree
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_SCOPED_DEALLOCATOR_HPP
|
||||
+79
@@ -0,0 +1,79 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree subtree scoped destroyer
|
||||
//
|
||||
// Copyright (c) 2011-2015 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_RTREE_NODE_SUBTREE_DESTROYED_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_SUBTREE_DESTROYED_HPP
|
||||
|
||||
#include <boost/geometry/index/detail/rtree/visitors/destroy.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree {
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
class subtree_destroyer
|
||||
{
|
||||
typedef typename rtree::node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename Allocators::node_pointer pointer;
|
||||
|
||||
subtree_destroyer(subtree_destroyer const&);
|
||||
subtree_destroyer & operator=(subtree_destroyer const&);
|
||||
|
||||
public:
|
||||
subtree_destroyer(pointer ptr, Allocators & allocators)
|
||||
: m_ptr(ptr)
|
||||
, m_allocators(allocators)
|
||||
{}
|
||||
|
||||
~subtree_destroyer()
|
||||
{
|
||||
reset();
|
||||
}
|
||||
|
||||
void reset(pointer ptr = 0)
|
||||
{
|
||||
if ( m_ptr && m_ptr != ptr )
|
||||
{
|
||||
detail::rtree::visitors::destroy<Value, Options, Translator, Box, Allocators> del_v(m_ptr, m_allocators);
|
||||
detail::rtree::apply_visitor(del_v, *m_ptr);
|
||||
}
|
||||
m_ptr = ptr;
|
||||
}
|
||||
|
||||
void release()
|
||||
{
|
||||
m_ptr = 0;
|
||||
}
|
||||
|
||||
pointer get() const
|
||||
{
|
||||
return m_ptr;
|
||||
}
|
||||
|
||||
node & operator*() const
|
||||
{
|
||||
return *m_ptr;
|
||||
}
|
||||
|
||||
pointer operator->() const
|
||||
{
|
||||
return m_ptr;
|
||||
}
|
||||
|
||||
private:
|
||||
pointer m_ptr;
|
||||
Allocators & m_allocators;
|
||||
};
|
||||
|
||||
}} // namespace detail::rtree
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_SUBTREE_DESTROYED_HPP
|
||||
+276
@@ -0,0 +1,276 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree nodes based on Boost.Variant, storing dynamic-size containers
|
||||
//
|
||||
// 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_RTREE_NODE_VARIANT_DYNAMIC_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_VARIANT_DYNAMIC_HPP
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree {
|
||||
|
||||
// nodes default types
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
||||
struct variant_internal_node
|
||||
{
|
||||
typedef boost::container::vector
|
||||
<
|
||||
rtree::ptr_pair<Box, typename Allocators::node_pointer>,
|
||||
typename Allocators::node_allocator_type::template rebind
|
||||
<
|
||||
rtree::ptr_pair<Box, typename Allocators::node_pointer>
|
||||
>::other
|
||||
> elements_type;
|
||||
|
||||
template <typename Al>
|
||||
inline variant_internal_node(Al const& al)
|
||||
: elements(al)
|
||||
{}
|
||||
|
||||
elements_type elements;
|
||||
};
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
||||
struct variant_leaf
|
||||
{
|
||||
typedef boost::container::vector
|
||||
<
|
||||
Value,
|
||||
typename Allocators::node_allocator_type::template rebind
|
||||
<
|
||||
Value
|
||||
>::other
|
||||
> elements_type;
|
||||
|
||||
template <typename Al>
|
||||
inline variant_leaf(Al const& al)
|
||||
: elements(al)
|
||||
{}
|
||||
|
||||
elements_type elements;
|
||||
};
|
||||
|
||||
// nodes traits
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators>
|
||||
struct node<Value, Parameters, Box, Allocators, node_variant_dynamic_tag>
|
||||
{
|
||||
typedef boost::variant<
|
||||
variant_leaf<Value, Parameters, Box, Allocators, node_variant_dynamic_tag>,
|
||||
variant_internal_node<Value, Parameters, Box, Allocators, node_variant_dynamic_tag>
|
||||
> type;
|
||||
};
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators>
|
||||
struct internal_node<Value, Parameters, Box, Allocators, node_variant_dynamic_tag>
|
||||
{
|
||||
typedef variant_internal_node<Value, Parameters, Box, Allocators, node_variant_dynamic_tag> type;
|
||||
};
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators>
|
||||
struct leaf<Value, Parameters, Box, Allocators, node_variant_dynamic_tag>
|
||||
{
|
||||
typedef variant_leaf<Value, Parameters, Box, Allocators, node_variant_dynamic_tag> type;
|
||||
};
|
||||
|
||||
// visitor traits
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, bool IsVisitableConst>
|
||||
struct visitor<Value, Parameters, Box, Allocators, node_variant_dynamic_tag, IsVisitableConst>
|
||||
{
|
||||
typedef static_visitor<> type;
|
||||
};
|
||||
|
||||
// allocators
|
||||
|
||||
template <typename Allocator, typename Value, typename Parameters, typename Box>
|
||||
class allocators<Allocator, Value, Parameters, Box, node_variant_dynamic_tag>
|
||||
: public Allocator::template rebind<
|
||||
typename node<
|
||||
Value, Parameters, Box,
|
||||
allocators<Allocator, Value, Parameters, Box, node_variant_dynamic_tag>,
|
||||
node_variant_dynamic_tag
|
||||
>::type
|
||||
>::other
|
||||
{
|
||||
typedef typename Allocator::template rebind<
|
||||
Value
|
||||
>::other value_allocator_type;
|
||||
|
||||
public:
|
||||
typedef Allocator allocator_type;
|
||||
|
||||
typedef Value value_type;
|
||||
typedef typename value_allocator_type::reference reference;
|
||||
typedef typename value_allocator_type::const_reference const_reference;
|
||||
typedef typename value_allocator_type::size_type size_type;
|
||||
typedef typename value_allocator_type::difference_type difference_type;
|
||||
typedef typename value_allocator_type::pointer pointer;
|
||||
typedef typename value_allocator_type::const_pointer const_pointer;
|
||||
|
||||
typedef typename Allocator::template rebind<
|
||||
typename node<Value, Parameters, Box, allocators, node_variant_dynamic_tag>::type
|
||||
>::other::pointer node_pointer;
|
||||
|
||||
typedef typename Allocator::template rebind<
|
||||
typename node<Value, Parameters, Box, allocators, node_variant_dynamic_tag>::type
|
||||
>::other node_allocator_type;
|
||||
|
||||
inline allocators()
|
||||
: node_allocator_type()
|
||||
{}
|
||||
|
||||
template <typename Alloc>
|
||||
inline explicit allocators(Alloc const& alloc)
|
||||
: node_allocator_type(alloc)
|
||||
{}
|
||||
|
||||
inline allocators(BOOST_FWD_REF(allocators) a)
|
||||
: node_allocator_type(boost::move(a.node_allocator()))
|
||||
{}
|
||||
|
||||
inline allocators & operator=(BOOST_FWD_REF(allocators) a)
|
||||
{
|
||||
node_allocator() = boost::move(a.node_allocator());
|
||||
return *this;
|
||||
}
|
||||
|
||||
#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
|
||||
inline allocators & operator=(allocators const& a)
|
||||
{
|
||||
node_allocator() = a.node_allocator();
|
||||
return *this;
|
||||
}
|
||||
#endif
|
||||
|
||||
void swap(allocators & a)
|
||||
{
|
||||
boost::swap(node_allocator(), a.node_allocator());
|
||||
}
|
||||
|
||||
bool operator==(allocators const& a) const { return node_allocator() == a.node_allocator(); }
|
||||
template <typename Alloc>
|
||||
bool operator==(Alloc const& a) const { return node_allocator() == node_allocator_type(a); }
|
||||
|
||||
Allocator allocator() const { return Allocator(node_allocator()); }
|
||||
|
||||
node_allocator_type & node_allocator() { return *this; }
|
||||
node_allocator_type const& node_allocator() const { return *this; }
|
||||
};
|
||||
|
||||
// create_node_variant
|
||||
|
||||
template <typename VariantPtr, typename Node>
|
||||
struct create_variant_node
|
||||
{
|
||||
template <typename AllocNode>
|
||||
static inline VariantPtr apply(AllocNode & alloc_node)
|
||||
{
|
||||
typedef boost::container::allocator_traits<AllocNode> Al;
|
||||
typedef typename Al::pointer P;
|
||||
|
||||
P p = Al::allocate(alloc_node, 1);
|
||||
|
||||
if ( 0 == p )
|
||||
throw_runtime_error("boost::geometry::index::rtree node creation failed");
|
||||
|
||||
scoped_deallocator<AllocNode> deallocator(p, alloc_node);
|
||||
|
||||
Al::construct(alloc_node, boost::addressof(*p), Node(alloc_node)); // implicit cast to Variant
|
||||
|
||||
deallocator.release();
|
||||
return p;
|
||||
}
|
||||
};
|
||||
|
||||
// destroy_node_variant
|
||||
|
||||
template <typename Node>
|
||||
struct destroy_variant_node
|
||||
{
|
||||
template <typename AllocNode, typename VariantPtr>
|
||||
static inline void apply(AllocNode & alloc_node, VariantPtr n)
|
||||
{
|
||||
typedef boost::container::allocator_traits<AllocNode> Al;
|
||||
|
||||
Al::destroy(alloc_node, boost::addressof(*n));
|
||||
Al::deallocate(alloc_node, n, 1);
|
||||
}
|
||||
};
|
||||
|
||||
// create_node
|
||||
|
||||
template <typename Allocators, typename Value, typename Parameters, typename Box, typename Tag>
|
||||
struct create_node<
|
||||
Allocators,
|
||||
variant_internal_node<Value, Parameters, Box, Allocators, Tag>
|
||||
>
|
||||
{
|
||||
static inline typename Allocators::node_pointer
|
||||
apply(Allocators & allocators)
|
||||
{
|
||||
return create_variant_node<
|
||||
typename Allocators::node_pointer,
|
||||
variant_internal_node<Value, Parameters, Box, Allocators, Tag>
|
||||
>::apply(allocators.node_allocator());
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Allocators, typename Value, typename Parameters, typename Box, typename Tag>
|
||||
struct create_node<
|
||||
Allocators,
|
||||
variant_leaf<Value, Parameters, Box, Allocators, Tag>
|
||||
>
|
||||
{
|
||||
static inline typename Allocators::node_pointer
|
||||
apply(Allocators & allocators)
|
||||
{
|
||||
return create_variant_node<
|
||||
typename Allocators::node_pointer,
|
||||
variant_leaf<Value, Parameters, Box, Allocators, Tag>
|
||||
>::apply(allocators.node_allocator());
|
||||
}
|
||||
};
|
||||
|
||||
// destroy_node
|
||||
|
||||
template <typename Allocators, typename Value, typename Parameters, typename Box, typename Tag>
|
||||
struct destroy_node<
|
||||
Allocators,
|
||||
variant_internal_node<Value, Parameters, Box, Allocators, Tag>
|
||||
>
|
||||
{
|
||||
static inline void apply(Allocators & allocators, typename Allocators::node_pointer n)
|
||||
{
|
||||
destroy_variant_node<
|
||||
variant_internal_node<Value, Parameters, Box, Allocators, Tag>
|
||||
>::apply(allocators.node_allocator(), n);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Allocators, typename Value, typename Parameters, typename Box, typename Tag>
|
||||
struct destroy_node<
|
||||
Allocators,
|
||||
variant_leaf<Value, Parameters, Box, Allocators, Tag>
|
||||
>
|
||||
{
|
||||
static inline void apply(Allocators & allocators, typename Allocators::node_pointer n)
|
||||
{
|
||||
destroy_variant_node<
|
||||
variant_leaf<Value, Parameters, Box, Allocators, Tag>
|
||||
>::apply(allocators.node_allocator(), n);
|
||||
}
|
||||
};
|
||||
|
||||
}} // namespace detail::rtree
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_VARIANT_DYNAMIC_HPP
|
||||
+160
@@ -0,0 +1,160 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree nodes based on Boost.Variant, storing static-size containers
|
||||
//
|
||||
// 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_RTREE_NODE_VARIANT_STATIC_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_VARIANT_STATIC_HPP
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree {
|
||||
|
||||
// nodes default types
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators>
|
||||
struct variant_internal_node<Value, Parameters, Box, Allocators, node_variant_static_tag>
|
||||
{
|
||||
typedef detail::varray<
|
||||
rtree::ptr_pair<Box, typename Allocators::node_pointer>,
|
||||
Parameters::max_elements + 1
|
||||
> elements_type;
|
||||
|
||||
template <typename Alloc>
|
||||
inline variant_internal_node(Alloc const&) {}
|
||||
|
||||
elements_type elements;
|
||||
};
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators>
|
||||
struct variant_leaf<Value, Parameters, Box, Allocators, node_variant_static_tag>
|
||||
{
|
||||
typedef detail::varray<
|
||||
Value,
|
||||
Parameters::max_elements + 1
|
||||
> elements_type;
|
||||
|
||||
template <typename Alloc>
|
||||
inline variant_leaf(Alloc const&) {}
|
||||
|
||||
elements_type elements;
|
||||
};
|
||||
|
||||
// nodes traits
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators>
|
||||
struct node<Value, Parameters, Box, Allocators, node_variant_static_tag>
|
||||
{
|
||||
typedef boost::variant<
|
||||
variant_leaf<Value, Parameters, Box, Allocators, node_variant_static_tag>,
|
||||
variant_internal_node<Value, Parameters, Box, Allocators, node_variant_static_tag>
|
||||
> type;
|
||||
};
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators>
|
||||
struct internal_node<Value, Parameters, Box, Allocators, node_variant_static_tag>
|
||||
{
|
||||
typedef variant_internal_node<Value, Parameters, Box, Allocators, node_variant_static_tag> type;
|
||||
};
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators>
|
||||
struct leaf<Value, Parameters, Box, Allocators, node_variant_static_tag>
|
||||
{
|
||||
typedef variant_leaf<Value, Parameters, Box, Allocators, node_variant_static_tag> type;
|
||||
};
|
||||
|
||||
// visitor traits
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, bool IsVisitableConst>
|
||||
struct visitor<Value, Parameters, Box, Allocators, node_variant_static_tag, IsVisitableConst>
|
||||
{
|
||||
typedef static_visitor<> type;
|
||||
};
|
||||
|
||||
// allocators
|
||||
|
||||
template <typename Allocator, typename Value, typename Parameters, typename Box>
|
||||
class allocators<Allocator, Value, Parameters, Box, node_variant_static_tag>
|
||||
: public Allocator::template rebind<
|
||||
typename node<
|
||||
Value, Parameters, Box,
|
||||
allocators<Allocator, Value, Parameters, Box, node_variant_static_tag>,
|
||||
node_variant_static_tag
|
||||
>::type
|
||||
>::other
|
||||
{
|
||||
typedef typename Allocator::template rebind<
|
||||
Value
|
||||
>::other value_allocator_type;
|
||||
|
||||
public:
|
||||
typedef Allocator allocator_type;
|
||||
|
||||
typedef Value value_type;
|
||||
typedef value_type & reference;
|
||||
typedef const value_type & const_reference;
|
||||
typedef typename value_allocator_type::size_type size_type;
|
||||
typedef typename value_allocator_type::difference_type difference_type;
|
||||
typedef typename value_allocator_type::pointer pointer;
|
||||
typedef typename value_allocator_type::const_pointer const_pointer;
|
||||
|
||||
typedef typename Allocator::template rebind<
|
||||
typename node<Value, Parameters, Box, allocators, node_variant_static_tag>::type
|
||||
>::other::pointer node_pointer;
|
||||
|
||||
typedef typename Allocator::template rebind<
|
||||
typename node<Value, Parameters, Box, allocators, node_variant_static_tag>::type
|
||||
>::other node_allocator_type;
|
||||
|
||||
inline allocators()
|
||||
: node_allocator_type()
|
||||
{}
|
||||
|
||||
template <typename Alloc>
|
||||
inline explicit allocators(Alloc const& alloc)
|
||||
: node_allocator_type(alloc)
|
||||
{}
|
||||
|
||||
inline allocators(BOOST_FWD_REF(allocators) a)
|
||||
: node_allocator_type(boost::move(a.node_allocator()))
|
||||
{}
|
||||
|
||||
inline allocators & operator=(BOOST_FWD_REF(allocators) a)
|
||||
{
|
||||
node_allocator() = boost::move(a.node_allocator());
|
||||
return *this;
|
||||
}
|
||||
|
||||
#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
|
||||
inline allocators & operator=(allocators const& a)
|
||||
{
|
||||
node_allocator() = a.node_allocator();
|
||||
return *this;
|
||||
}
|
||||
#endif
|
||||
|
||||
void swap(allocators & a)
|
||||
{
|
||||
boost::swap(node_allocator(), a.node_allocator());
|
||||
}
|
||||
|
||||
bool operator==(allocators const& a) const { return node_allocator() == a.node_allocator(); }
|
||||
template <typename Alloc>
|
||||
bool operator==(Alloc const& a) const { return node_allocator() == node_allocator_type(a); }
|
||||
|
||||
Allocator allocator() const { return Allocator(node_allocator()); }
|
||||
|
||||
node_allocator_type & node_allocator() { return *this; }
|
||||
node_allocator_type const& node_allocator() const { return *this; }
|
||||
};
|
||||
|
||||
}} // namespace detail::rtree
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_VARIANT_STATIC_HPP
|
||||
+68
@@ -0,0 +1,68 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree nodes static visitor related code
|
||||
//
|
||||
// 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_RTREE_NODE_VARIANT_VISITOR_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_VARIANT_VISITOR_HPP
|
||||
|
||||
#include <boost/variant/apply_visitor.hpp>
|
||||
#include <boost/variant/get.hpp>
|
||||
#include <boost/variant/variant.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree {
|
||||
|
||||
// nodes variants forward declarations
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
||||
struct variant_internal_node;
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
||||
struct variant_leaf;
|
||||
|
||||
// nodes conversion
|
||||
|
||||
template <typename V, typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
||||
inline V & get(
|
||||
boost::variant<
|
||||
variant_leaf<Value, Parameters, Box, Allocators, Tag>,
|
||||
variant_internal_node<Value, Parameters, Box, Allocators, Tag>
|
||||
> & v)
|
||||
{
|
||||
return boost::get<V>(v);
|
||||
}
|
||||
|
||||
// apply visitor
|
||||
|
||||
template <typename Visitor, typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
||||
inline void apply_visitor(Visitor & v,
|
||||
boost::variant<
|
||||
variant_leaf<Value, Parameters, Box, Allocators, Tag>,
|
||||
variant_internal_node<Value, Parameters, Box, Allocators, Tag>
|
||||
> & n)
|
||||
{
|
||||
boost::apply_visitor(v, n);
|
||||
}
|
||||
|
||||
template <typename Visitor, typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
||||
inline void apply_visitor(Visitor & v,
|
||||
boost::variant<
|
||||
variant_leaf<Value, Parameters, Box, Allocators, Tag>,
|
||||
variant_internal_node<Value, Parameters, Box, Allocators, Tag>
|
||||
> const& n)
|
||||
{
|
||||
boost::apply_visitor(v, n);
|
||||
}
|
||||
|
||||
}} // namespace detail::rtree
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_VARIANT_VISITOR_HPP
|
||||
+294
@@ -0,0 +1,294 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree nodes based on static conversion, storing dynamic-size containers
|
||||
//
|
||||
// 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_RTREE_NODE_WEAK_DYNAMIC_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_WEAK_DYNAMIC_HPP
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree {
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
||||
struct weak_internal_node
|
||||
: public weak_node<Value, Parameters, Box, Allocators, Tag>
|
||||
{
|
||||
typedef boost::container::vector
|
||||
<
|
||||
rtree::ptr_pair<Box, typename Allocators::node_pointer>,
|
||||
typename Allocators::internal_node_allocator_type::template rebind
|
||||
<
|
||||
rtree::ptr_pair<Box, typename Allocators::node_pointer>
|
||||
>::other
|
||||
> elements_type;
|
||||
|
||||
template <typename Al>
|
||||
inline weak_internal_node(Al const& al)
|
||||
: elements(al)
|
||||
{}
|
||||
|
||||
elements_type elements;
|
||||
};
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
||||
struct weak_leaf
|
||||
: public weak_node<Value, Parameters, Box, Allocators, Tag>
|
||||
{
|
||||
typedef boost::container::vector
|
||||
<
|
||||
Value,
|
||||
typename Allocators::leaf_allocator_type::template rebind
|
||||
<
|
||||
Value
|
||||
>::other
|
||||
> elements_type;
|
||||
|
||||
template <typename Al>
|
||||
inline weak_leaf(Al const& al)
|
||||
: elements(al)
|
||||
{}
|
||||
|
||||
elements_type elements;
|
||||
};
|
||||
|
||||
// nodes traits
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators>
|
||||
struct node<Value, Parameters, Box, Allocators, node_weak_dynamic_tag>
|
||||
{
|
||||
typedef weak_node<Value, Parameters, Box, Allocators, node_weak_dynamic_tag> type;
|
||||
};
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators>
|
||||
struct internal_node<Value, Parameters, Box, Allocators, node_weak_dynamic_tag>
|
||||
{
|
||||
typedef weak_internal_node<Value, Parameters, Box, Allocators, node_weak_dynamic_tag> type;
|
||||
};
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators>
|
||||
struct leaf<Value, Parameters, Box, Allocators, node_weak_dynamic_tag>
|
||||
{
|
||||
typedef weak_leaf<Value, Parameters, Box, Allocators, node_weak_dynamic_tag> type;
|
||||
};
|
||||
|
||||
// visitor traits
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, bool IsVisitableConst>
|
||||
struct visitor<Value, Parameters, Box, Allocators, node_weak_dynamic_tag, IsVisitableConst>
|
||||
{
|
||||
typedef weak_visitor<Value, Parameters, Box, Allocators, node_weak_dynamic_tag, IsVisitableConst> type;
|
||||
};
|
||||
|
||||
// allocators
|
||||
|
||||
template <typename Allocator, typename Value, typename Parameters, typename Box>
|
||||
class allocators<Allocator, Value, Parameters, Box, node_weak_dynamic_tag>
|
||||
: public Allocator::template rebind<
|
||||
typename internal_node<
|
||||
Value, Parameters, Box,
|
||||
allocators<Allocator, Value, Parameters, Box, node_weak_dynamic_tag>,
|
||||
node_weak_dynamic_tag
|
||||
>::type
|
||||
>::other
|
||||
, public Allocator::template rebind<
|
||||
typename leaf<
|
||||
Value, Parameters, Box,
|
||||
allocators<Allocator, Value, Parameters, Box, node_weak_dynamic_tag>,
|
||||
node_weak_dynamic_tag
|
||||
>::type
|
||||
>::other
|
||||
{
|
||||
typedef typename Allocator::template rebind<
|
||||
Value
|
||||
>::other value_allocator_type;
|
||||
|
||||
public:
|
||||
typedef Allocator allocator_type;
|
||||
|
||||
typedef Value value_type;
|
||||
typedef typename value_allocator_type::reference reference;
|
||||
typedef typename value_allocator_type::const_reference const_reference;
|
||||
typedef typename value_allocator_type::size_type size_type;
|
||||
typedef typename value_allocator_type::difference_type difference_type;
|
||||
typedef typename value_allocator_type::pointer pointer;
|
||||
typedef typename value_allocator_type::const_pointer const_pointer;
|
||||
|
||||
typedef typename Allocator::template rebind<
|
||||
typename node<Value, Parameters, Box, allocators, node_weak_dynamic_tag>::type
|
||||
>::other::pointer node_pointer;
|
||||
|
||||
typedef typename Allocator::template rebind<
|
||||
typename internal_node<Value, Parameters, Box, allocators, node_weak_dynamic_tag>::type
|
||||
>::other internal_node_allocator_type;
|
||||
|
||||
typedef typename Allocator::template rebind<
|
||||
typename leaf<Value, Parameters, Box, allocators, node_weak_dynamic_tag>::type
|
||||
>::other leaf_allocator_type;
|
||||
|
||||
inline allocators()
|
||||
: internal_node_allocator_type()
|
||||
, leaf_allocator_type()
|
||||
{}
|
||||
|
||||
template <typename Alloc>
|
||||
inline explicit allocators(Alloc const& alloc)
|
||||
: internal_node_allocator_type(alloc)
|
||||
, leaf_allocator_type(alloc)
|
||||
{}
|
||||
|
||||
inline allocators(BOOST_FWD_REF(allocators) a)
|
||||
: internal_node_allocator_type(boost::move(a.internal_node_allocator()))
|
||||
, leaf_allocator_type(boost::move(a.leaf_allocator()))
|
||||
{}
|
||||
|
||||
inline allocators & operator=(BOOST_FWD_REF(allocators) a)
|
||||
{
|
||||
internal_node_allocator() = ::boost::move(a.internal_node_allocator());
|
||||
leaf_allocator() = ::boost::move(a.leaf_allocator());
|
||||
return *this;
|
||||
}
|
||||
|
||||
#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
|
||||
inline allocators & operator=(allocators const& a)
|
||||
{
|
||||
internal_node_allocator() = a.internal_node_allocator();
|
||||
leaf_allocator() = a.leaf_allocator();
|
||||
return *this;
|
||||
}
|
||||
#endif
|
||||
|
||||
void swap(allocators & a)
|
||||
{
|
||||
boost::swap(internal_node_allocator(), a.internal_node_allocator());
|
||||
boost::swap(leaf_allocator(), a.leaf_allocator());
|
||||
}
|
||||
|
||||
bool operator==(allocators const& a) const { return leaf_allocator() == a.leaf_allocator(); }
|
||||
template <typename Alloc>
|
||||
bool operator==(Alloc const& a) const { return leaf_allocator() == leaf_allocator_type(a); }
|
||||
|
||||
Allocator allocator() const { return Allocator(leaf_allocator()); }
|
||||
|
||||
internal_node_allocator_type & internal_node_allocator() { return *this; }
|
||||
internal_node_allocator_type const& internal_node_allocator() const { return *this; }
|
||||
leaf_allocator_type & leaf_allocator() { return *this; }
|
||||
leaf_allocator_type const& leaf_allocator() const { return *this; }
|
||||
};
|
||||
|
||||
// create_node_impl
|
||||
|
||||
template <typename BaseNodePtr, typename Node>
|
||||
struct create_weak_node
|
||||
{
|
||||
template <typename AllocNode>
|
||||
static inline BaseNodePtr apply(AllocNode & alloc_node)
|
||||
{
|
||||
typedef boost::container::allocator_traits<AllocNode> Al;
|
||||
typedef typename Al::pointer P;
|
||||
|
||||
P p = Al::allocate(alloc_node, 1);
|
||||
|
||||
if ( 0 == p )
|
||||
throw_runtime_error("boost::geometry::index::rtree node creation failed");
|
||||
|
||||
scoped_deallocator<AllocNode> deallocator(p, alloc_node);
|
||||
|
||||
Al::construct(alloc_node, boost::addressof(*p), alloc_node);
|
||||
|
||||
deallocator.release();
|
||||
return p;
|
||||
}
|
||||
};
|
||||
|
||||
// destroy_node_impl
|
||||
|
||||
template <typename Node>
|
||||
struct destroy_weak_node
|
||||
{
|
||||
template <typename AllocNode, typename BaseNodePtr>
|
||||
static inline void apply(AllocNode & alloc_node, BaseNodePtr n)
|
||||
{
|
||||
typedef boost::container::allocator_traits<AllocNode> Al;
|
||||
typedef typename Al::pointer P;
|
||||
|
||||
P p(&static_cast<Node&>(rtree::get<Node>(*n)));
|
||||
Al::destroy(alloc_node, boost::addressof(*p));
|
||||
Al::deallocate(alloc_node, p, 1);
|
||||
}
|
||||
};
|
||||
|
||||
// create_node
|
||||
|
||||
template <typename Allocators, typename Value, typename Parameters, typename Box, typename Tag>
|
||||
struct create_node<
|
||||
Allocators,
|
||||
weak_internal_node<Value, Parameters, Box, Allocators, Tag>
|
||||
>
|
||||
{
|
||||
static inline typename Allocators::node_pointer
|
||||
apply(Allocators & allocators)
|
||||
{
|
||||
return create_weak_node<
|
||||
typename Allocators::node_pointer,
|
||||
weak_internal_node<Value, Parameters, Box, Allocators, Tag>
|
||||
>::apply(allocators.internal_node_allocator());
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Allocators, typename Value, typename Parameters, typename Box, typename Tag>
|
||||
struct create_node<
|
||||
Allocators,
|
||||
weak_leaf<Value, Parameters, Box, Allocators, Tag>
|
||||
>
|
||||
{
|
||||
static inline typename Allocators::node_pointer
|
||||
apply(Allocators & allocators)
|
||||
{
|
||||
return create_weak_node<
|
||||
typename Allocators::node_pointer,
|
||||
weak_leaf<Value, Parameters, Box, Allocators, Tag>
|
||||
>::apply(allocators.leaf_allocator());
|
||||
}
|
||||
};
|
||||
|
||||
// destroy_node
|
||||
|
||||
template <typename Allocators, typename Value, typename Parameters, typename Box, typename Tag>
|
||||
struct destroy_node<
|
||||
Allocators,
|
||||
weak_internal_node<Value, Parameters, Box, Allocators, Tag>
|
||||
>
|
||||
{
|
||||
static inline void apply(Allocators & allocators, typename Allocators::node_pointer n)
|
||||
{
|
||||
destroy_weak_node<
|
||||
weak_internal_node<Value, Parameters, Box, Allocators, Tag>
|
||||
>::apply(allocators.internal_node_allocator(), n);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Allocators, typename Value, typename Parameters, typename Box, typename Tag>
|
||||
struct destroy_node<
|
||||
Allocators,
|
||||
weak_leaf<Value, Parameters, Box, Allocators, Tag>
|
||||
>
|
||||
{
|
||||
static inline void apply(Allocators & allocators, typename Allocators::node_pointer n)
|
||||
{
|
||||
destroy_weak_node<
|
||||
weak_leaf<Value, Parameters, Box, Allocators, Tag>
|
||||
>::apply(allocators.leaf_allocator(), n);
|
||||
}
|
||||
};
|
||||
|
||||
}} // namespace detail::rtree
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_WEAK_DYNAMIC_HPP
|
||||
+174
@@ -0,0 +1,174 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree nodes based on static conversion, storing static-size containers
|
||||
//
|
||||
// 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_RTREE_NODE_WEAK_STATIC_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_WEAK_STATIC_HPP
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree {
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators>
|
||||
struct weak_internal_node<Value, Parameters, Box, Allocators, node_weak_static_tag>
|
||||
: public weak_node<Value, Parameters, Box, Allocators, node_weak_static_tag>
|
||||
{
|
||||
typedef detail::varray<
|
||||
rtree::ptr_pair<Box, typename Allocators::node_pointer>,
|
||||
Parameters::max_elements + 1
|
||||
> elements_type;
|
||||
|
||||
template <typename Alloc>
|
||||
inline weak_internal_node(Alloc const&) {}
|
||||
|
||||
elements_type elements;
|
||||
};
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators>
|
||||
struct weak_leaf<Value, Parameters, Box, Allocators, node_weak_static_tag>
|
||||
: public weak_node<Value, Parameters, Box, Allocators, node_weak_static_tag>
|
||||
{
|
||||
typedef detail::varray<
|
||||
Value,
|
||||
Parameters::max_elements + 1
|
||||
> elements_type;
|
||||
|
||||
template <typename Alloc>
|
||||
inline weak_leaf(Alloc const&) {}
|
||||
|
||||
elements_type elements;
|
||||
};
|
||||
|
||||
// nodes traits
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators>
|
||||
struct node<Value, Parameters, Box, Allocators, node_weak_static_tag>
|
||||
{
|
||||
typedef weak_node<Value, Parameters, Box, Allocators, node_weak_static_tag> type;
|
||||
};
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators>
|
||||
struct internal_node<Value, Parameters, Box, Allocators, node_weak_static_tag>
|
||||
{
|
||||
typedef weak_internal_node<Value, Parameters, Box, Allocators, node_weak_static_tag> type;
|
||||
};
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators>
|
||||
struct leaf<Value, Parameters, Box, Allocators, node_weak_static_tag>
|
||||
{
|
||||
typedef weak_leaf<Value, Parameters, Box, Allocators, node_weak_static_tag> type;
|
||||
};
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, bool IsVisitableConst>
|
||||
struct visitor<Value, Parameters, Box, Allocators, node_weak_static_tag, IsVisitableConst>
|
||||
{
|
||||
typedef weak_visitor<Value, Parameters, Box, Allocators, node_weak_static_tag, IsVisitableConst> type;
|
||||
};
|
||||
|
||||
// allocators
|
||||
|
||||
template <typename Allocator, typename Value, typename Parameters, typename Box>
|
||||
class allocators<Allocator, Value, Parameters, Box, node_weak_static_tag>
|
||||
: public Allocator::template rebind<
|
||||
typename internal_node<
|
||||
Value, Parameters, Box,
|
||||
allocators<Allocator, Value, Parameters, Box, node_weak_static_tag>,
|
||||
node_weak_static_tag
|
||||
>::type
|
||||
>::other
|
||||
, public Allocator::template rebind<
|
||||
typename leaf<
|
||||
Value, Parameters, Box,
|
||||
allocators<Allocator, Value, Parameters, Box, node_weak_static_tag>,
|
||||
node_weak_static_tag
|
||||
>::type
|
||||
>::other
|
||||
{
|
||||
typedef typename Allocator::template rebind<
|
||||
Value
|
||||
>::other value_allocator_type;
|
||||
|
||||
public:
|
||||
typedef Allocator allocator_type;
|
||||
|
||||
typedef Value value_type;
|
||||
typedef value_type & reference;
|
||||
typedef const value_type & const_reference;
|
||||
typedef typename value_allocator_type::size_type size_type;
|
||||
typedef typename value_allocator_type::difference_type difference_type;
|
||||
typedef typename value_allocator_type::pointer pointer;
|
||||
typedef typename value_allocator_type::const_pointer const_pointer;
|
||||
|
||||
typedef typename Allocator::template rebind<
|
||||
typename node<Value, Parameters, Box, allocators, node_weak_static_tag>::type
|
||||
>::other::pointer node_pointer;
|
||||
|
||||
typedef typename Allocator::template rebind<
|
||||
typename internal_node<Value, Parameters, Box, allocators, node_weak_static_tag>::type
|
||||
>::other internal_node_allocator_type;
|
||||
|
||||
typedef typename Allocator::template rebind<
|
||||
typename leaf<Value, Parameters, Box, allocators, node_weak_static_tag>::type
|
||||
>::other leaf_allocator_type;
|
||||
|
||||
inline allocators()
|
||||
: internal_node_allocator_type()
|
||||
, leaf_allocator_type()
|
||||
{}
|
||||
|
||||
template <typename Alloc>
|
||||
inline explicit allocators(Alloc const& alloc)
|
||||
: internal_node_allocator_type(alloc)
|
||||
, leaf_allocator_type(alloc)
|
||||
{}
|
||||
|
||||
inline allocators(BOOST_FWD_REF(allocators) a)
|
||||
: internal_node_allocator_type(boost::move(a.internal_node_allocator()))
|
||||
, leaf_allocator_type(boost::move(a.leaf_allocator()))
|
||||
{}
|
||||
|
||||
inline allocators & operator=(BOOST_FWD_REF(allocators) a)
|
||||
{
|
||||
internal_node_allocator() = ::boost::move(a.internal_node_allocator());
|
||||
leaf_allocator() = ::boost::move(a.leaf_allocator());
|
||||
return *this;
|
||||
}
|
||||
|
||||
#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
|
||||
inline allocators & operator=(allocators const& a)
|
||||
{
|
||||
internal_node_allocator() = a.internal_node_allocator();
|
||||
leaf_allocator() = a.leaf_allocator();
|
||||
return *this;
|
||||
}
|
||||
#endif
|
||||
|
||||
void swap(allocators & a)
|
||||
{
|
||||
boost::swap(internal_node_allocator(), a.internal_node_allocator());
|
||||
boost::swap(leaf_allocator(), a.leaf_allocator());
|
||||
}
|
||||
|
||||
bool operator==(allocators const& a) const { return leaf_allocator() == a.leaf_allocator(); }
|
||||
template <typename Alloc>
|
||||
bool operator==(Alloc const& a) const { return leaf_allocator() == leaf_allocator_type(a); }
|
||||
|
||||
Allocator allocator() const { return Allocator(leaf_allocator()); }
|
||||
|
||||
internal_node_allocator_type & internal_node_allocator() { return *this; }
|
||||
internal_node_allocator_type const& internal_node_allocator() const { return *this; }
|
||||
leaf_allocator_type & leaf_allocator() { return *this; }
|
||||
leaf_allocator_type const& leaf_allocator() const{ return *this; }
|
||||
};
|
||||
|
||||
}} // namespace detail::rtree
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_WEAK_STATIC_HPP
|
||||
+67
@@ -0,0 +1,67 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree nodes weak visitor and nodes base type
|
||||
//
|
||||
// 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_RTREE_NODE_WEAK_VISITOR_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_WEAK_VISITOR_HPP
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree {
|
||||
|
||||
// empty visitor
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag, bool IsVisitableConst>
|
||||
struct weak_visitor {};
|
||||
|
||||
// node
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
||||
struct weak_node {};
|
||||
|
||||
// nodes variants forward declarations
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
||||
struct weak_internal_node;
|
||||
|
||||
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
||||
struct weak_leaf;
|
||||
|
||||
// nodes conversion
|
||||
|
||||
template <typename Derived, typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
||||
inline Derived & get(weak_node<Value, Parameters, Box, Allocators, Tag> & n)
|
||||
{
|
||||
return static_cast<Derived&>(n);
|
||||
}
|
||||
|
||||
// apply visitor
|
||||
|
||||
template <typename Visitor, typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
||||
inline void apply_visitor(Visitor & v,
|
||||
weak_node<Value, Parameters, Box, Allocators, Tag> & n,
|
||||
bool is_internal_node)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(&n, "null ptr");
|
||||
if ( is_internal_node )
|
||||
{
|
||||
typedef weak_internal_node<Value, Parameters, Box, Allocators, Tag> internal_node;
|
||||
v(get<internal_node>(n));
|
||||
}
|
||||
else
|
||||
{
|
||||
typedef weak_leaf<Value, Parameters, Box, Allocators, Tag> leaf;
|
||||
v(get<leaf>(n));
|
||||
}
|
||||
}
|
||||
|
||||
}} // namespace detail::rtree
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_DYNAMIC_VISITOR_HPP
|
||||
@@ -0,0 +1,155 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree options, algorithms, parameters
|
||||
//
|
||||
// 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_RTREE_OPTIONS_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_OPTIONS_HPP
|
||||
|
||||
#include <boost/geometry/index/parameters.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree {
|
||||
|
||||
// InsertTag
|
||||
struct insert_default_tag {};
|
||||
struct insert_reinsert_tag {};
|
||||
|
||||
// ChooseNextNodeTag
|
||||
struct choose_by_content_diff_tag {};
|
||||
struct choose_by_overlap_diff_tag {};
|
||||
|
||||
// SplitTag
|
||||
struct split_default_tag {};
|
||||
//struct split_kmeans_tag {};
|
||||
|
||||
// RedistributeTag
|
||||
struct linear_tag {};
|
||||
struct quadratic_tag {};
|
||||
struct rstar_tag {};
|
||||
|
||||
// NodeTag
|
||||
struct node_variant_dynamic_tag {};
|
||||
struct node_variant_static_tag {};
|
||||
//struct node_weak_dynamic_tag {};
|
||||
//struct node_weak_static_tag {};
|
||||
|
||||
template <typename Parameters, typename InsertTag, typename ChooseNextNodeTag, typename SplitTag, typename RedistributeTag, typename NodeTag>
|
||||
struct options
|
||||
{
|
||||
typedef Parameters parameters_type;
|
||||
typedef InsertTag insert_tag;
|
||||
typedef ChooseNextNodeTag choose_next_node_tag;
|
||||
typedef SplitTag split_tag;
|
||||
typedef RedistributeTag redistribute_tag;
|
||||
typedef NodeTag node_tag;
|
||||
};
|
||||
|
||||
template <typename Parameters>
|
||||
struct options_type
|
||||
{
|
||||
// TODO: awulkiew - use static assert
|
||||
};
|
||||
|
||||
template <size_t MaxElements, size_t MinElements>
|
||||
struct options_type< index::linear<MaxElements, MinElements> >
|
||||
{
|
||||
typedef options<
|
||||
index::linear<MaxElements, MinElements>,
|
||||
insert_default_tag,
|
||||
choose_by_content_diff_tag,
|
||||
split_default_tag,
|
||||
linear_tag,
|
||||
node_variant_static_tag
|
||||
> type;
|
||||
};
|
||||
|
||||
template <size_t MaxElements, size_t MinElements>
|
||||
struct options_type< index::quadratic<MaxElements, MinElements> >
|
||||
{
|
||||
typedef options<
|
||||
index::quadratic<MaxElements, MinElements>,
|
||||
insert_default_tag,
|
||||
choose_by_content_diff_tag,
|
||||
split_default_tag,
|
||||
quadratic_tag,
|
||||
node_variant_static_tag
|
||||
> type;
|
||||
};
|
||||
|
||||
template <size_t MaxElements, size_t MinElements, size_t OverlapCostThreshold, size_t ReinsertedElements>
|
||||
struct options_type< index::rstar<MaxElements, MinElements, OverlapCostThreshold, ReinsertedElements> >
|
||||
{
|
||||
typedef options<
|
||||
index::rstar<MaxElements, MinElements, OverlapCostThreshold, ReinsertedElements>,
|
||||
insert_reinsert_tag,
|
||||
choose_by_overlap_diff_tag,
|
||||
split_default_tag,
|
||||
rstar_tag,
|
||||
node_variant_static_tag
|
||||
> type;
|
||||
};
|
||||
|
||||
//template <size_t MaxElements, size_t MinElements>
|
||||
//struct options_type< kmeans<MaxElements, MinElements> >
|
||||
//{
|
||||
// typedef options<
|
||||
// kmeans<MaxElements, MinElements>,
|
||||
// insert_default_tag,
|
||||
// choose_by_content_diff_tag, // change it?
|
||||
// split_kmeans_tag,
|
||||
// int, // dummy tag - not used for now
|
||||
// node_variant_static_tag
|
||||
// > type;
|
||||
//};
|
||||
|
||||
template <>
|
||||
struct options_type< index::dynamic_linear >
|
||||
{
|
||||
typedef options<
|
||||
index::dynamic_linear,
|
||||
insert_default_tag,
|
||||
choose_by_content_diff_tag,
|
||||
split_default_tag,
|
||||
linear_tag,
|
||||
node_variant_dynamic_tag
|
||||
> type;
|
||||
};
|
||||
|
||||
template <>
|
||||
struct options_type< index::dynamic_quadratic >
|
||||
{
|
||||
typedef options<
|
||||
index::dynamic_quadratic,
|
||||
insert_default_tag,
|
||||
choose_by_content_diff_tag,
|
||||
split_default_tag,
|
||||
quadratic_tag,
|
||||
node_variant_dynamic_tag
|
||||
> type;
|
||||
};
|
||||
|
||||
template <>
|
||||
struct options_type< index::dynamic_rstar >
|
||||
{
|
||||
typedef options<
|
||||
index::dynamic_rstar,
|
||||
insert_reinsert_tag,
|
||||
choose_by_overlap_diff_tag,
|
||||
split_default_tag,
|
||||
rstar_tag,
|
||||
node_variant_dynamic_tag
|
||||
> type;
|
||||
};
|
||||
|
||||
}} // namespace detail::rtree
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_OPTIONS_HPP
|
||||
+465
@@ -0,0 +1,465 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree initial packing
|
||||
//
|
||||
// Copyright (c) 2011-2017 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_RTREE_PACK_CREATE_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_PACK_CREATE_HPP
|
||||
|
||||
#include <boost/geometry/algorithms/expand.hpp>
|
||||
#include <boost/geometry/index/detail/algorithms/bounds.hpp>
|
||||
#include <boost/geometry/index/detail/algorithms/nth_element.hpp>
|
||||
|
||||
#include <boost/geometry/algorithms/detail/expand_by_epsilon.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index { namespace detail { namespace rtree {
|
||||
|
||||
namespace pack_utils {
|
||||
|
||||
template <std::size_t Dimension>
|
||||
struct biggest_edge
|
||||
{
|
||||
BOOST_STATIC_ASSERT(0 < Dimension);
|
||||
template <typename Box>
|
||||
static inline void apply(Box const& box, typename coordinate_type<Box>::type & length, std::size_t & dim_index)
|
||||
{
|
||||
biggest_edge<Dimension-1>::apply(box, length, dim_index);
|
||||
typename coordinate_type<Box>::type curr
|
||||
= geometry::get<max_corner, Dimension-1>(box) - geometry::get<min_corner, Dimension-1>(box);
|
||||
if ( length < curr )
|
||||
{
|
||||
dim_index = Dimension - 1;
|
||||
length = curr;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
template <>
|
||||
struct biggest_edge<1>
|
||||
{
|
||||
template <typename Box>
|
||||
static inline void apply(Box const& box, typename coordinate_type<Box>::type & length, std::size_t & dim_index)
|
||||
{
|
||||
dim_index = 0;
|
||||
length = geometry::get<max_corner, 0>(box) - geometry::get<min_corner, 0>(box);
|
||||
}
|
||||
};
|
||||
|
||||
template <std::size_t I>
|
||||
struct point_entries_comparer
|
||||
{
|
||||
template <typename PointEntry>
|
||||
bool operator()(PointEntry const& e1, PointEntry const& e2) const
|
||||
{
|
||||
return geometry::get<I>(e1.first) < geometry::get<I>(e2.first);
|
||||
}
|
||||
};
|
||||
|
||||
template <std::size_t I, std::size_t Dimension>
|
||||
struct nth_element_and_half_boxes
|
||||
{
|
||||
template <typename EIt, typename Box>
|
||||
static inline void apply(EIt first, EIt median, EIt last, Box const& box, Box & left, Box & right, std::size_t dim_index)
|
||||
{
|
||||
if ( I == dim_index )
|
||||
{
|
||||
index::detail::nth_element(first, median, last, point_entries_comparer<I>());
|
||||
|
||||
geometry::convert(box, left);
|
||||
geometry::convert(box, right);
|
||||
typename coordinate_type<Box>::type edge_len
|
||||
= geometry::get<max_corner, I>(box) - geometry::get<min_corner, I>(box);
|
||||
typename coordinate_type<Box>::type median
|
||||
= geometry::get<min_corner, I>(box) + edge_len / 2;
|
||||
geometry::set<max_corner, I>(left, median);
|
||||
geometry::set<min_corner, I>(right, median);
|
||||
}
|
||||
else
|
||||
nth_element_and_half_boxes<I+1, Dimension>::apply(first, median, last, box, left, right, dim_index);
|
||||
}
|
||||
};
|
||||
|
||||
template <std::size_t Dimension>
|
||||
struct nth_element_and_half_boxes<Dimension, Dimension>
|
||||
{
|
||||
template <typename EIt, typename Box>
|
||||
static inline void apply(EIt , EIt , EIt , Box const& , Box & , Box & , std::size_t ) {}
|
||||
};
|
||||
|
||||
} // namespace pack_utils
|
||||
|
||||
// STR leafs number are calculated as rcount/max
|
||||
// and the number of splitting planes for each dimension as (count/max)^(1/dimension)
|
||||
// <-> for dimension==2 -> sqrt(count/max)
|
||||
//
|
||||
// The main flaw of this algorithm is that the resulting tree will have bad structure for:
|
||||
// 1. non-uniformly distributed elements
|
||||
// Statistic check could be performed, e.g. based on variance of lengths of elements edges for each dimension
|
||||
// 2. elements distributed mainly along one axis
|
||||
// Calculate bounding box of all elements and then number of dividing planes for a dimension
|
||||
// from the length of BB edge for this dimension (more or less assuming that elements are uniformly-distributed squares)
|
||||
//
|
||||
// Another thing is that the last node may have less elements than Max or even Min.
|
||||
// The number of splitting planes must be chosen more carefully than count/max
|
||||
//
|
||||
// This algorithm is something between STR and TGS
|
||||
// it is more similar to the top-down recursive kd-tree creation algorithm
|
||||
// using object median split and split axis of greatest BB edge
|
||||
// BB is only used as a hint (assuming objects are distributed uniformly)
|
||||
//
|
||||
// Implemented algorithm guarantees that the number of elements in nodes will be between Min and Max
|
||||
// and that nodes are packed as tightly as possible
|
||||
// e.g. for 177 values Max = 5 and Min = 2 it will construct the following tree:
|
||||
// ROOT 177
|
||||
// L1 125 52
|
||||
// L2 25 25 25 25 25 25 17 10
|
||||
// L3 5x5 5x5 5x5 5x5 5x5 5x5 3x5+2 2x5
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
class pack
|
||||
{
|
||||
typedef typename rtree::node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef typename Allocators::node_pointer node_pointer;
|
||||
typedef rtree::subtree_destroyer<Value, Options, Translator, Box, Allocators> subtree_destroyer;
|
||||
typedef typename Allocators::size_type size_type;
|
||||
|
||||
typedef typename geometry::point_type<Box>::type point_type;
|
||||
typedef typename geometry::coordinate_type<point_type>::type coordinate_type;
|
||||
typedef typename detail::default_content_result<Box>::type content_type;
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
static const std::size_t dimension = geometry::dimension<point_type>::value;
|
||||
|
||||
typedef typename rtree::container_from_elements_type<
|
||||
typename rtree::elements_type<leaf>::type,
|
||||
std::size_t
|
||||
>::type values_counts_container;
|
||||
|
||||
typedef typename rtree::elements_type<internal_node>::type internal_elements;
|
||||
typedef typename internal_elements::value_type internal_element;
|
||||
|
||||
public:
|
||||
// Arbitrary iterators
|
||||
template <typename InIt> inline static
|
||||
node_pointer apply(InIt first, InIt last, size_type & values_count, size_type & leafs_level,
|
||||
parameters_type const& parameters, Translator const& translator, Allocators & allocators)
|
||||
{
|
||||
typedef typename std::iterator_traits<InIt>::difference_type diff_type;
|
||||
|
||||
diff_type diff = std::distance(first, last);
|
||||
if ( diff <= 0 )
|
||||
return node_pointer(0);
|
||||
|
||||
typedef std::pair<point_type, InIt> entry_type;
|
||||
std::vector<entry_type> entries;
|
||||
|
||||
values_count = static_cast<size_type>(diff);
|
||||
entries.reserve(values_count);
|
||||
|
||||
expandable_box<Box> hint_box;
|
||||
for ( ; first != last ; ++first )
|
||||
{
|
||||
// NOTE: support for iterators not returning true references adapted
|
||||
// to Geometry concept and default translator returning true reference
|
||||
// An alternative would be to dereference the iterator and translate
|
||||
// in one expression each time the indexable was needed.
|
||||
typename std::iterator_traits<InIt>::reference in_ref = *first;
|
||||
typename Translator::result_type indexable = translator(in_ref);
|
||||
|
||||
// NOTE: added for consistency with insert()
|
||||
// CONSIDER: alternative - ignore invalid indexable or throw an exception
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(detail::is_valid(indexable), "Indexable is invalid");
|
||||
|
||||
hint_box.expand(indexable);
|
||||
|
||||
point_type pt;
|
||||
geometry::centroid(indexable, pt);
|
||||
entries.push_back(std::make_pair(pt, first));
|
||||
}
|
||||
|
||||
subtree_elements_counts subtree_counts = calculate_subtree_elements_counts(values_count, parameters, leafs_level);
|
||||
internal_element el = per_level(entries.begin(), entries.end(), hint_box.get(), values_count, subtree_counts,
|
||||
parameters, translator, allocators);
|
||||
|
||||
return el.second;
|
||||
}
|
||||
|
||||
private:
|
||||
template <typename BoxType>
|
||||
class expandable_box
|
||||
{
|
||||
public:
|
||||
expandable_box()
|
||||
: m_initialized(false)
|
||||
{}
|
||||
|
||||
template <typename Indexable>
|
||||
explicit expandable_box(Indexable const& indexable)
|
||||
: m_initialized(true)
|
||||
{
|
||||
detail::bounds(indexable, m_box);
|
||||
}
|
||||
|
||||
template <typename Indexable>
|
||||
void expand(Indexable const& indexable)
|
||||
{
|
||||
if ( !m_initialized )
|
||||
{
|
||||
// it's guaranteed that the Box will be initialized
|
||||
// only for Points, Boxes and Segments but that's ok
|
||||
// since only those Geometries can be stored
|
||||
detail::bounds(indexable, m_box);
|
||||
m_initialized = true;
|
||||
}
|
||||
else
|
||||
{
|
||||
geometry::expand(m_box, indexable);
|
||||
}
|
||||
}
|
||||
|
||||
void expand_by_epsilon()
|
||||
{
|
||||
geometry::detail::expand_by_epsilon(m_box);
|
||||
}
|
||||
|
||||
BoxType const& get() const
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(m_initialized, "uninitialized envelope accessed");
|
||||
return m_box;
|
||||
}
|
||||
|
||||
private:
|
||||
bool m_initialized;
|
||||
BoxType m_box;
|
||||
};
|
||||
|
||||
struct subtree_elements_counts
|
||||
{
|
||||
subtree_elements_counts(std::size_t ma, std::size_t mi) : maxc(ma), minc(mi) {}
|
||||
std::size_t maxc;
|
||||
std::size_t minc;
|
||||
};
|
||||
|
||||
template <typename EIt> inline static
|
||||
internal_element per_level(EIt first, EIt last, Box const& hint_box, std::size_t values_count, subtree_elements_counts const& subtree_counts,
|
||||
parameters_type const& parameters, Translator const& translator, Allocators & allocators)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(0 < std::distance(first, last) && static_cast<std::size_t>(std::distance(first, last)) == values_count,
|
||||
"unexpected parameters");
|
||||
|
||||
if ( subtree_counts.maxc <= 1 )
|
||||
{
|
||||
// ROOT or LEAF
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(values_count <= parameters.get_max_elements(),
|
||||
"too big number of elements");
|
||||
// if !root check m_parameters.get_min_elements() <= count
|
||||
|
||||
// create new leaf node
|
||||
node_pointer n = rtree::create_node<Allocators, leaf>::apply(allocators); // MAY THROW (A)
|
||||
subtree_destroyer auto_remover(n, allocators);
|
||||
leaf & l = rtree::get<leaf>(*n);
|
||||
|
||||
// reserve space for values
|
||||
rtree::elements(l).reserve(values_count); // MAY THROW (A)
|
||||
|
||||
// calculate values box and copy values
|
||||
// initialize the box explicitly to avoid GCC-4.4 uninitialized variable warnings with O2
|
||||
expandable_box<Box> elements_box(translator(*(first->second)));
|
||||
rtree::elements(l).push_back(*(first->second)); // MAY THROW (A?,C)
|
||||
for ( ++first ; first != last ; ++first )
|
||||
{
|
||||
// NOTE: push_back() must be called at the end in order to support move_iterator.
|
||||
// The iterator is dereferenced 2x (no temporary reference) to support
|
||||
// non-true reference types and move_iterator without boost::forward<>.
|
||||
elements_box.expand(translator(*(first->second)));
|
||||
rtree::elements(l).push_back(*(first->second)); // MAY THROW (A?,C)
|
||||
}
|
||||
|
||||
#ifdef BOOST_GEOMETRY_INDEX_EXPERIMENTAL_ENLARGE_BY_EPSILON
|
||||
// Enlarge bounds of a leaf node.
|
||||
// It's because Points and Segments are compared WRT machine epsilon
|
||||
// This ensures that leafs bounds correspond to the stored elements
|
||||
// NOTE: this is done only if the Indexable is a different kind of Geometry
|
||||
// than the bounds (only Box for now). Spatial predicates are checked
|
||||
// the same way for Geometry of the same kind.
|
||||
if ( BOOST_GEOMETRY_CONDITION((
|
||||
! index::detail::is_bounding_geometry
|
||||
<
|
||||
typename indexable_type<Translator>::type
|
||||
>::value )) )
|
||||
{
|
||||
elements_box.expand_by_epsilon();
|
||||
}
|
||||
#endif
|
||||
|
||||
auto_remover.release();
|
||||
return internal_element(elements_box.get(), n);
|
||||
}
|
||||
|
||||
// calculate next max and min subtree counts
|
||||
subtree_elements_counts next_subtree_counts = subtree_counts;
|
||||
next_subtree_counts.maxc /= parameters.get_max_elements();
|
||||
next_subtree_counts.minc /= parameters.get_max_elements();
|
||||
|
||||
// create new internal node
|
||||
node_pointer n = rtree::create_node<Allocators, internal_node>::apply(allocators); // MAY THROW (A)
|
||||
subtree_destroyer auto_remover(n, allocators);
|
||||
internal_node & in = rtree::get<internal_node>(*n);
|
||||
|
||||
// reserve space for values
|
||||
std::size_t nodes_count = calculate_nodes_count(values_count, subtree_counts);
|
||||
rtree::elements(in).reserve(nodes_count); // MAY THROW (A)
|
||||
// calculate values box and copy values
|
||||
expandable_box<Box> elements_box;
|
||||
|
||||
per_level_packets(first, last, hint_box, values_count, subtree_counts, next_subtree_counts,
|
||||
rtree::elements(in), elements_box,
|
||||
parameters, translator, allocators);
|
||||
|
||||
auto_remover.release();
|
||||
return internal_element(elements_box.get(), n);
|
||||
}
|
||||
|
||||
template <typename EIt, typename ExpandableBox> inline static
|
||||
void per_level_packets(EIt first, EIt last, Box const& hint_box,
|
||||
std::size_t values_count,
|
||||
subtree_elements_counts const& subtree_counts,
|
||||
subtree_elements_counts const& next_subtree_counts,
|
||||
internal_elements & elements, ExpandableBox & elements_box,
|
||||
parameters_type const& parameters, Translator const& translator, Allocators & allocators)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(0 < std::distance(first, last) && static_cast<std::size_t>(std::distance(first, last)) == values_count,
|
||||
"unexpected parameters");
|
||||
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(subtree_counts.minc <= values_count,
|
||||
"too small number of elements");
|
||||
|
||||
// only one packet
|
||||
if ( values_count <= subtree_counts.maxc )
|
||||
{
|
||||
// the end, move to the next level
|
||||
internal_element el = per_level(first, last, hint_box, values_count, next_subtree_counts,
|
||||
parameters, translator, allocators);
|
||||
|
||||
// in case if push_back() do throw here
|
||||
// and even if this is not probable (previously reserved memory, nonthrowing pairs copy)
|
||||
// this case is also tested by exceptions test.
|
||||
subtree_destroyer auto_remover(el.second, allocators);
|
||||
// this container should have memory allocated, reserve() called outside
|
||||
elements.push_back(el); // MAY THROW (A?,C) - however in normal conditions shouldn't
|
||||
auto_remover.release();
|
||||
|
||||
elements_box.expand(el.first);
|
||||
return;
|
||||
}
|
||||
|
||||
std::size_t median_count = calculate_median_count(values_count, subtree_counts);
|
||||
EIt median = first + median_count;
|
||||
|
||||
coordinate_type greatest_length;
|
||||
std::size_t greatest_dim_index = 0;
|
||||
pack_utils::biggest_edge<dimension>::apply(hint_box, greatest_length, greatest_dim_index);
|
||||
Box left, right;
|
||||
pack_utils::nth_element_and_half_boxes<0, dimension>
|
||||
::apply(first, median, last, hint_box, left, right, greatest_dim_index);
|
||||
|
||||
per_level_packets(first, median, left,
|
||||
median_count, subtree_counts, next_subtree_counts,
|
||||
elements, elements_box,
|
||||
parameters, translator, allocators);
|
||||
per_level_packets(median, last, right,
|
||||
values_count - median_count, subtree_counts, next_subtree_counts,
|
||||
elements, elements_box,
|
||||
parameters, translator, allocators);
|
||||
}
|
||||
|
||||
inline static
|
||||
subtree_elements_counts calculate_subtree_elements_counts(std::size_t elements_count, parameters_type const& parameters, size_type & leafs_level)
|
||||
{
|
||||
boost::ignore_unused_variable_warning(parameters);
|
||||
|
||||
subtree_elements_counts res(1, 1);
|
||||
leafs_level = 0;
|
||||
|
||||
std::size_t smax = parameters.get_max_elements();
|
||||
for ( ; smax < elements_count ; smax *= parameters.get_max_elements(), ++leafs_level )
|
||||
res.maxc = smax;
|
||||
|
||||
res.minc = parameters.get_min_elements() * (res.maxc / parameters.get_max_elements());
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
inline static
|
||||
std::size_t calculate_nodes_count(std::size_t count,
|
||||
subtree_elements_counts const& subtree_counts)
|
||||
{
|
||||
std::size_t n = count / subtree_counts.maxc;
|
||||
std::size_t r = count % subtree_counts.maxc;
|
||||
|
||||
if ( 0 < r && r < subtree_counts.minc )
|
||||
{
|
||||
std::size_t count_minus_min = count - subtree_counts.minc;
|
||||
n = count_minus_min / subtree_counts.maxc;
|
||||
r = count_minus_min % subtree_counts.maxc;
|
||||
++n;
|
||||
}
|
||||
|
||||
if ( 0 < r )
|
||||
++n;
|
||||
|
||||
return n;
|
||||
}
|
||||
|
||||
inline static
|
||||
std::size_t calculate_median_count(std::size_t count,
|
||||
subtree_elements_counts const& subtree_counts)
|
||||
{
|
||||
// e.g. for max = 5, min = 2, count = 52, subtree_max = 25, subtree_min = 10
|
||||
|
||||
std::size_t n = count / subtree_counts.maxc; // e.g. 52 / 25 = 2
|
||||
std::size_t r = count % subtree_counts.maxc; // e.g. 52 % 25 = 2
|
||||
std::size_t median_count = (n / 2) * subtree_counts.maxc; // e.g. 2 / 2 * 25 = 25
|
||||
|
||||
if ( 0 != r ) // e.g. 0 != 2
|
||||
{
|
||||
if ( subtree_counts.minc <= r ) // e.g. 10 <= 2 == false
|
||||
{
|
||||
//BOOST_GEOMETRY_INDEX_ASSERT(0 < n, "unexpected value");
|
||||
median_count = ((n+1)/2) * subtree_counts.maxc; // if calculated ((2+1)/2) * 25 which would be ok, but not in all cases
|
||||
}
|
||||
else // r < subtree_counts.second // e.g. 2 < 10 == true
|
||||
{
|
||||
std::size_t count_minus_min = count - subtree_counts.minc; // e.g. 52 - 10 = 42
|
||||
n = count_minus_min / subtree_counts.maxc; // e.g. 42 / 25 = 1
|
||||
r = count_minus_min % subtree_counts.maxc; // e.g. 42 % 25 = 17
|
||||
if ( r == 0 ) // e.g. false
|
||||
{
|
||||
// n can't be equal to 0 because then there wouldn't be any element in the other node
|
||||
//BOOST_GEOMETRY_INDEX_ASSERT(0 < n, "unexpected value");
|
||||
median_count = ((n+1)/2) * subtree_counts.maxc; // if calculated ((1+1)/2) * 25 which would be ok, but not in all cases
|
||||
}
|
||||
else
|
||||
{
|
||||
if ( n == 0 ) // e.g. false
|
||||
median_count = r; // if calculated -> 17 which is wrong!
|
||||
else
|
||||
median_count = ((n+2)/2) * subtree_counts.maxc; // e.g. ((1+2)/2) * 25 = 25
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return median_count;
|
||||
}
|
||||
};
|
||||
|
||||
}}}}} // namespace boost::geometry::index::detail::rtree
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_PACK_CREATE_HPP
|
||||
+16
@@ -0,0 +1,16 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree quadratic algorithm implementation
|
||||
//
|
||||
// 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_RTREE_QUADRATIC_QUADRATIC_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_QUADRATIC_QUADRATIC_HPP
|
||||
|
||||
#include <boost/geometry/index/detail/rtree/quadratic/redistribute_elements.hpp>
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_QUADRATIC_QUADRATIC_HPP
|
||||
+295
@@ -0,0 +1,295 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree quadratic split algorithm implementation
|
||||
//
|
||||
// Copyright (c) 2011-2015 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_RTREE_QUADRATIC_REDISTRIBUTE_ELEMENTS_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_QUADRATIC_REDISTRIBUTE_ELEMENTS_HPP
|
||||
|
||||
#include <algorithm>
|
||||
|
||||
#include <boost/geometry/index/detail/algorithms/content.hpp>
|
||||
#include <boost/geometry/index/detail/algorithms/union_content.hpp>
|
||||
|
||||
#include <boost/geometry/index/detail/bounded_view.hpp>
|
||||
|
||||
#include <boost/geometry/index/detail/rtree/node/node.hpp>
|
||||
#include <boost/geometry/index/detail/rtree/visitors/insert.hpp>
|
||||
#include <boost/geometry/index/detail/rtree/visitors/is_leaf.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree {
|
||||
|
||||
namespace quadratic {
|
||||
|
||||
template <typename Box, typename Elements, typename Parameters, typename Translator>
|
||||
inline void pick_seeds(Elements const& elements,
|
||||
Parameters const& parameters,
|
||||
Translator const& tr,
|
||||
size_t & seed1,
|
||||
size_t & seed2)
|
||||
{
|
||||
typedef typename Elements::value_type element_type;
|
||||
typedef typename rtree::element_indexable_type<element_type, Translator>::type indexable_type;
|
||||
typedef Box box_type;
|
||||
typedef typename index::detail::default_content_result<box_type>::type content_type;
|
||||
typedef index::detail::bounded_view<indexable_type, box_type> bounded_indexable_view;
|
||||
|
||||
const size_t elements_count = parameters.get_max_elements() + 1;
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(elements.size() == elements_count, "wrong number of elements");
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(2 <= elements_count, "unexpected number of elements");
|
||||
|
||||
content_type greatest_free_content = 0;
|
||||
seed1 = 0;
|
||||
seed2 = 1;
|
||||
|
||||
for ( size_t i = 0 ; i < elements_count - 1 ; ++i )
|
||||
{
|
||||
for ( size_t j = i + 1 ; j < elements_count ; ++j )
|
||||
{
|
||||
indexable_type const& ind1 = rtree::element_indexable(elements[i], tr);
|
||||
indexable_type const& ind2 = rtree::element_indexable(elements[j], tr);
|
||||
|
||||
box_type enlarged_box;
|
||||
detail::bounds(ind1, enlarged_box);
|
||||
geometry::expand(enlarged_box, ind2);
|
||||
|
||||
bounded_indexable_view bounded_ind1(ind1);
|
||||
bounded_indexable_view bounded_ind2(ind2);
|
||||
content_type free_content = ( index::detail::content(enlarged_box)
|
||||
- index::detail::content(bounded_ind1) )
|
||||
- index::detail::content(bounded_ind2);
|
||||
|
||||
if ( greatest_free_content < free_content )
|
||||
{
|
||||
greatest_free_content = free_content;
|
||||
seed1 = i;
|
||||
seed2 = j;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
::boost::ignore_unused_variable_warning(parameters);
|
||||
}
|
||||
|
||||
} // namespace quadratic
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
struct redistribute_elements<Value, Options, Translator, Box, Allocators, quadratic_tag>
|
||||
{
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
typedef typename rtree::node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef typename index::detail::default_content_result<Box>::type content_type;
|
||||
|
||||
template <typename Node>
|
||||
static inline void apply(Node & n,
|
||||
Node & second_node,
|
||||
Box & box1,
|
||||
Box & box2,
|
||||
parameters_type const& parameters,
|
||||
Translator const& translator,
|
||||
Allocators & allocators)
|
||||
{
|
||||
typedef typename rtree::elements_type<Node>::type elements_type;
|
||||
typedef typename elements_type::value_type element_type;
|
||||
typedef typename rtree::element_indexable_type<element_type, Translator>::type indexable_type;
|
||||
|
||||
elements_type & elements1 = rtree::elements(n);
|
||||
elements_type & elements2 = rtree::elements(second_node);
|
||||
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(elements1.size() == parameters.get_max_elements() + 1, "unexpected elements number");
|
||||
|
||||
// copy original elements - use in-memory storage (std::allocator)
|
||||
// TODO: move if noexcept
|
||||
typedef typename rtree::container_from_elements_type<elements_type, element_type>::type
|
||||
container_type;
|
||||
container_type elements_copy(elements1.begin(), elements1.end()); // MAY THROW, STRONG (alloc, copy)
|
||||
container_type elements_backup(elements1.begin(), elements1.end()); // MAY THROW, STRONG (alloc, copy)
|
||||
|
||||
// calculate initial seeds
|
||||
size_t seed1 = 0;
|
||||
size_t seed2 = 0;
|
||||
quadratic::pick_seeds<Box>(elements_copy, parameters, translator, seed1, seed2);
|
||||
|
||||
// prepare nodes' elements containers
|
||||
elements1.clear();
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(elements2.empty(), "second node's elements container should be empty");
|
||||
|
||||
BOOST_TRY
|
||||
{
|
||||
// add seeds
|
||||
elements1.push_back(elements_copy[seed1]); // MAY THROW, STRONG (copy)
|
||||
elements2.push_back(elements_copy[seed2]); // MAY THROW, STRONG (alloc, copy)
|
||||
|
||||
// calculate boxes
|
||||
detail::bounds(rtree::element_indexable(elements_copy[seed1], translator), box1);
|
||||
detail::bounds(rtree::element_indexable(elements_copy[seed2], translator), box2);
|
||||
|
||||
// remove seeds
|
||||
if (seed1 < seed2)
|
||||
{
|
||||
rtree::move_from_back(elements_copy, elements_copy.begin() + seed2); // MAY THROW, STRONG (copy)
|
||||
elements_copy.pop_back();
|
||||
rtree::move_from_back(elements_copy, elements_copy.begin() + seed1); // MAY THROW, STRONG (copy)
|
||||
elements_copy.pop_back();
|
||||
}
|
||||
else
|
||||
{
|
||||
rtree::move_from_back(elements_copy, elements_copy.begin() + seed1); // MAY THROW, STRONG (copy)
|
||||
elements_copy.pop_back();
|
||||
rtree::move_from_back(elements_copy, elements_copy.begin() + seed2); // MAY THROW, STRONG (copy)
|
||||
elements_copy.pop_back();
|
||||
}
|
||||
|
||||
// initialize areas
|
||||
content_type content1 = index::detail::content(box1);
|
||||
content_type content2 = index::detail::content(box2);
|
||||
|
||||
size_t remaining = elements_copy.size();
|
||||
|
||||
// redistribute the rest of the elements
|
||||
while ( !elements_copy.empty() )
|
||||
{
|
||||
typename container_type::reverse_iterator el_it = elements_copy.rbegin();
|
||||
bool insert_into_group1 = false;
|
||||
|
||||
size_t elements1_count = elements1.size();
|
||||
size_t elements2_count = elements2.size();
|
||||
|
||||
// if there is small number of elements left and the number of elements in node is lesser than min_elems
|
||||
// just insert them to this node
|
||||
if ( elements1_count + remaining <= parameters.get_min_elements() )
|
||||
{
|
||||
insert_into_group1 = true;
|
||||
}
|
||||
else if ( elements2_count + remaining <= parameters.get_min_elements() )
|
||||
{
|
||||
insert_into_group1 = false;
|
||||
}
|
||||
// insert the best element
|
||||
else
|
||||
{
|
||||
// find element with minimum groups areas increses differences
|
||||
content_type content_increase1 = 0;
|
||||
content_type content_increase2 = 0;
|
||||
el_it = pick_next(elements_copy.rbegin(), elements_copy.rend(),
|
||||
box1, box2, content1, content2, translator,
|
||||
content_increase1, content_increase2);
|
||||
|
||||
if ( content_increase1 < content_increase2 ||
|
||||
( content_increase1 == content_increase2 && ( content1 < content2 ||
|
||||
( content1 == content2 && elements1_count <= elements2_count ) )
|
||||
) )
|
||||
{
|
||||
insert_into_group1 = true;
|
||||
}
|
||||
else
|
||||
{
|
||||
insert_into_group1 = false;
|
||||
}
|
||||
}
|
||||
|
||||
// move element to the choosen group
|
||||
element_type const& elem = *el_it;
|
||||
indexable_type const& indexable = rtree::element_indexable(elem, translator);
|
||||
|
||||
if ( insert_into_group1 )
|
||||
{
|
||||
elements1.push_back(elem); // MAY THROW, STRONG (copy)
|
||||
geometry::expand(box1, indexable);
|
||||
content1 = index::detail::content(box1);
|
||||
}
|
||||
else
|
||||
{
|
||||
elements2.push_back(elem); // MAY THROW, STRONG (alloc, copy)
|
||||
geometry::expand(box2, indexable);
|
||||
content2 = index::detail::content(box2);
|
||||
}
|
||||
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(!elements_copy.empty(), "expected more elements");
|
||||
typename container_type::iterator el_it_base = el_it.base();
|
||||
rtree::move_from_back(elements_copy, --el_it_base); // MAY THROW, STRONG (copy)
|
||||
elements_copy.pop_back();
|
||||
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(0 < remaining, "expected more remaining elements");
|
||||
--remaining;
|
||||
}
|
||||
}
|
||||
BOOST_CATCH(...)
|
||||
{
|
||||
//elements_copy.clear();
|
||||
elements1.clear();
|
||||
elements2.clear();
|
||||
|
||||
rtree::destroy_elements<Value, Options, Translator, Box, Allocators>::apply(elements_backup, allocators);
|
||||
//elements_backup.clear();
|
||||
|
||||
BOOST_RETHROW // RETHROW, BASIC
|
||||
}
|
||||
BOOST_CATCH_END
|
||||
}
|
||||
|
||||
// TODO: awulkiew - change following function to static member of the pick_next class?
|
||||
|
||||
template <typename It>
|
||||
static inline It pick_next(It first, It last,
|
||||
Box const& box1, Box const& box2,
|
||||
content_type const& content1, content_type const& content2,
|
||||
Translator const& translator,
|
||||
content_type & out_content_increase1, content_type & out_content_increase2)
|
||||
{
|
||||
typedef typename boost::iterator_value<It>::type element_type;
|
||||
typedef typename rtree::element_indexable_type<element_type, Translator>::type indexable_type;
|
||||
|
||||
content_type greatest_content_incrase_diff = 0;
|
||||
It out_it = first;
|
||||
out_content_increase1 = 0;
|
||||
out_content_increase2 = 0;
|
||||
|
||||
// find element with greatest difference between increased group's boxes areas
|
||||
for ( It el_it = first ; el_it != last ; ++el_it )
|
||||
{
|
||||
indexable_type const& indexable = rtree::element_indexable(*el_it, translator);
|
||||
|
||||
// calculate enlarged boxes and areas
|
||||
Box enlarged_box1(box1);
|
||||
Box enlarged_box2(box2);
|
||||
geometry::expand(enlarged_box1, indexable);
|
||||
geometry::expand(enlarged_box2, indexable);
|
||||
content_type enlarged_content1 = index::detail::content(enlarged_box1);
|
||||
content_type enlarged_content2 = index::detail::content(enlarged_box2);
|
||||
|
||||
content_type content_incrase1 = (enlarged_content1 - content1);
|
||||
content_type content_incrase2 = (enlarged_content2 - content2);
|
||||
|
||||
content_type content_incrase_diff = content_incrase1 < content_incrase2 ?
|
||||
content_incrase2 - content_incrase1 : content_incrase1 - content_incrase2;
|
||||
|
||||
if ( greatest_content_incrase_diff < content_incrase_diff )
|
||||
{
|
||||
greatest_content_incrase_diff = content_incrase_diff;
|
||||
out_it = el_it;
|
||||
out_content_increase1 = content_incrase1;
|
||||
out_content_increase2 = content_incrase2;
|
||||
}
|
||||
}
|
||||
|
||||
return out_it;
|
||||
}
|
||||
};
|
||||
|
||||
}} // namespace detail::rtree
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_QUADRATIC_REDISTRIBUTE_ELEMENTS_HPP
|
||||
+387
@@ -0,0 +1,387 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree query iterators
|
||||
//
|
||||
// Copyright (c) 2011-2015 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_RTREE_QUERY_ITERATORS_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_QUERY_ITERATORS_HPP
|
||||
|
||||
#include <boost/scoped_ptr.hpp>
|
||||
|
||||
//#define BOOST_GEOMETRY_INDEX_DETAIL_QUERY_ITERATORS_USE_MOVE
|
||||
|
||||
namespace boost { namespace geometry { namespace index { namespace detail { namespace rtree { namespace iterators {
|
||||
|
||||
template <typename Value, typename Allocators>
|
||||
struct end_query_iterator
|
||||
{
|
||||
typedef std::forward_iterator_tag iterator_category;
|
||||
typedef Value value_type;
|
||||
typedef typename Allocators::const_reference reference;
|
||||
typedef typename Allocators::difference_type difference_type;
|
||||
typedef typename Allocators::const_pointer pointer;
|
||||
|
||||
reference operator*() const
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(false, "iterator not dereferencable");
|
||||
pointer p(0);
|
||||
return *p;
|
||||
}
|
||||
|
||||
const value_type * operator->() const
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(false, "iterator not dereferencable");
|
||||
const value_type * p = 0;
|
||||
return p;
|
||||
}
|
||||
|
||||
end_query_iterator & operator++()
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(false, "iterator not incrementable");
|
||||
return *this;
|
||||
}
|
||||
|
||||
end_query_iterator operator++(int)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(false, "iterator not incrementable");
|
||||
return *this;
|
||||
}
|
||||
|
||||
friend bool operator==(end_query_iterator const& /*l*/, end_query_iterator const& /*r*/)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators, typename Predicates>
|
||||
class spatial_query_iterator
|
||||
{
|
||||
typedef visitors::spatial_query_incremental<Value, Options, Translator, Box, Allocators, Predicates> visitor_type;
|
||||
typedef typename visitor_type::node_pointer node_pointer;
|
||||
|
||||
public:
|
||||
typedef std::forward_iterator_tag iterator_category;
|
||||
typedef Value value_type;
|
||||
typedef typename Allocators::const_reference reference;
|
||||
typedef typename Allocators::difference_type difference_type;
|
||||
typedef typename Allocators::const_pointer pointer;
|
||||
|
||||
inline spatial_query_iterator()
|
||||
{}
|
||||
|
||||
inline spatial_query_iterator(Translator const& t, Predicates const& p)
|
||||
: m_visitor(t, p)
|
||||
{}
|
||||
|
||||
inline spatial_query_iterator(node_pointer root, Translator const& t, Predicates const& p)
|
||||
: m_visitor(t, p)
|
||||
{
|
||||
m_visitor.initialize(root);
|
||||
}
|
||||
|
||||
reference operator*() const
|
||||
{
|
||||
return m_visitor.dereference();
|
||||
}
|
||||
|
||||
const value_type * operator->() const
|
||||
{
|
||||
return boost::addressof(m_visitor.dereference());
|
||||
}
|
||||
|
||||
spatial_query_iterator & operator++()
|
||||
{
|
||||
m_visitor.increment();
|
||||
return *this;
|
||||
}
|
||||
|
||||
spatial_query_iterator operator++(int)
|
||||
{
|
||||
spatial_query_iterator temp = *this;
|
||||
this->operator++();
|
||||
return temp;
|
||||
}
|
||||
|
||||
friend bool operator==(spatial_query_iterator const& l, spatial_query_iterator const& r)
|
||||
{
|
||||
return l.m_visitor == r.m_visitor;
|
||||
}
|
||||
|
||||
friend bool operator==(spatial_query_iterator const& l, end_query_iterator<Value, Allocators> const& /*r*/)
|
||||
{
|
||||
return l.m_visitor.is_end();
|
||||
}
|
||||
|
||||
friend bool operator==(end_query_iterator<Value, Allocators> const& /*l*/, spatial_query_iterator const& r)
|
||||
{
|
||||
return r.m_visitor.is_end();
|
||||
}
|
||||
|
||||
private:
|
||||
visitor_type m_visitor;
|
||||
};
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators, typename Predicates, unsigned NearestPredicateIndex>
|
||||
class distance_query_iterator
|
||||
{
|
||||
typedef visitors::distance_query_incremental<Value, Options, Translator, Box, Allocators, Predicates, NearestPredicateIndex> visitor_type;
|
||||
typedef typename visitor_type::node_pointer node_pointer;
|
||||
|
||||
public:
|
||||
typedef std::forward_iterator_tag iterator_category;
|
||||
typedef Value value_type;
|
||||
typedef typename Allocators::const_reference reference;
|
||||
typedef typename Allocators::difference_type difference_type;
|
||||
typedef typename Allocators::const_pointer pointer;
|
||||
|
||||
inline distance_query_iterator()
|
||||
{}
|
||||
|
||||
inline distance_query_iterator(Translator const& t, Predicates const& p)
|
||||
: m_visitor(t, p)
|
||||
{}
|
||||
|
||||
inline distance_query_iterator(node_pointer root, Translator const& t, Predicates const& p)
|
||||
: m_visitor(t, p)
|
||||
{
|
||||
m_visitor.initialize(root);
|
||||
}
|
||||
|
||||
reference operator*() const
|
||||
{
|
||||
return m_visitor.dereference();
|
||||
}
|
||||
|
||||
const value_type * operator->() const
|
||||
{
|
||||
return boost::addressof(m_visitor.dereference());
|
||||
}
|
||||
|
||||
distance_query_iterator & operator++()
|
||||
{
|
||||
m_visitor.increment();
|
||||
return *this;
|
||||
}
|
||||
|
||||
distance_query_iterator operator++(int)
|
||||
{
|
||||
distance_query_iterator temp = *this;
|
||||
this->operator++();
|
||||
return temp;
|
||||
}
|
||||
|
||||
friend bool operator==(distance_query_iterator const& l, distance_query_iterator const& r)
|
||||
{
|
||||
return l.m_visitor == r.m_visitor;
|
||||
}
|
||||
|
||||
friend bool operator==(distance_query_iterator const& l, end_query_iterator<Value, Allocators> const& /*r*/)
|
||||
{
|
||||
return l.m_visitor.is_end();
|
||||
}
|
||||
|
||||
friend bool operator==(end_query_iterator<Value, Allocators> const& /*l*/, distance_query_iterator const& r)
|
||||
{
|
||||
return r.m_visitor.is_end();
|
||||
}
|
||||
|
||||
private:
|
||||
visitor_type m_visitor;
|
||||
};
|
||||
|
||||
|
||||
template <typename L, typename R>
|
||||
inline bool operator!=(L const& l, R const& r)
|
||||
{
|
||||
return !(l == r);
|
||||
}
|
||||
|
||||
|
||||
template <typename Value, typename Allocators>
|
||||
class query_iterator_base
|
||||
{
|
||||
public:
|
||||
typedef std::forward_iterator_tag iterator_category;
|
||||
typedef Value value_type;
|
||||
typedef typename Allocators::const_reference reference;
|
||||
typedef typename Allocators::difference_type difference_type;
|
||||
typedef typename Allocators::const_pointer pointer;
|
||||
|
||||
virtual ~query_iterator_base() {}
|
||||
|
||||
virtual query_iterator_base * clone() const = 0;
|
||||
|
||||
virtual bool is_end() const = 0;
|
||||
virtual reference dereference() const = 0;
|
||||
virtual void increment() = 0;
|
||||
virtual bool equals(query_iterator_base const&) const = 0;
|
||||
};
|
||||
|
||||
template <typename Value, typename Allocators, typename Iterator>
|
||||
class query_iterator_wrapper
|
||||
: public query_iterator_base<Value, Allocators>
|
||||
{
|
||||
typedef query_iterator_base<Value, Allocators> base_t;
|
||||
|
||||
public:
|
||||
typedef std::forward_iterator_tag iterator_category;
|
||||
typedef Value value_type;
|
||||
typedef typename Allocators::const_reference reference;
|
||||
typedef typename Allocators::difference_type difference_type;
|
||||
typedef typename Allocators::const_pointer pointer;
|
||||
|
||||
query_iterator_wrapper() : m_iterator() {}
|
||||
explicit query_iterator_wrapper(Iterator const& it) : m_iterator(it) {}
|
||||
|
||||
virtual base_t * clone() const { return new query_iterator_wrapper(m_iterator); }
|
||||
|
||||
virtual bool is_end() const { return m_iterator == end_query_iterator<Value, Allocators>(); }
|
||||
virtual reference dereference() const { return *m_iterator; }
|
||||
virtual void increment() { ++m_iterator; }
|
||||
virtual bool equals(base_t const& r) const
|
||||
{
|
||||
const query_iterator_wrapper * p = dynamic_cast<const query_iterator_wrapper *>(boost::addressof(r));
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(p, "iterators can't be compared");
|
||||
return m_iterator == p->m_iterator;
|
||||
}
|
||||
|
||||
private:
|
||||
Iterator m_iterator;
|
||||
};
|
||||
|
||||
|
||||
template <typename Value, typename Allocators>
|
||||
class query_iterator
|
||||
{
|
||||
typedef query_iterator_base<Value, Allocators> iterator_base;
|
||||
typedef boost::scoped_ptr<iterator_base> iterator_ptr;
|
||||
|
||||
public:
|
||||
typedef std::forward_iterator_tag iterator_category;
|
||||
typedef Value value_type;
|
||||
typedef typename Allocators::const_reference reference;
|
||||
typedef typename Allocators::difference_type difference_type;
|
||||
typedef typename Allocators::const_pointer pointer;
|
||||
|
||||
query_iterator()
|
||||
{}
|
||||
|
||||
template <typename It>
|
||||
query_iterator(It const& it)
|
||||
: m_ptr(static_cast<iterator_base*>(
|
||||
new query_iterator_wrapper<Value, Allocators, It>(it) ))
|
||||
{}
|
||||
|
||||
query_iterator(end_query_iterator<Value, Allocators> const& /*it*/)
|
||||
{}
|
||||
|
||||
query_iterator(query_iterator const& o)
|
||||
: m_ptr(o.m_ptr.get() ? o.m_ptr->clone() : 0)
|
||||
{}
|
||||
|
||||
#ifndef BOOST_GEOMETRY_INDEX_DETAIL_QUERY_ITERATORS_USE_MOVE
|
||||
query_iterator & operator=(query_iterator const& o)
|
||||
{
|
||||
if ( this != boost::addressof(o) )
|
||||
{
|
||||
m_ptr.reset(o.m_ptr.get() ? o.m_ptr->clone() : 0);
|
||||
}
|
||||
return *this;
|
||||
}
|
||||
#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
|
||||
query_iterator(query_iterator && o)
|
||||
: m_ptr(0)
|
||||
{
|
||||
m_ptr.swap(o.m_ptr);
|
||||
}
|
||||
query_iterator & operator=(query_iterator && o)
|
||||
{
|
||||
if ( this != boost::addressof(o) )
|
||||
{
|
||||
m_ptr.swap(o.m_ptr);
|
||||
o.m_ptr.reset();
|
||||
}
|
||||
return *this;
|
||||
}
|
||||
#endif
|
||||
#else // !BOOST_GEOMETRY_INDEX_DETAIL_QUERY_ITERATORS_USE_MOVE
|
||||
private:
|
||||
BOOST_COPYABLE_AND_MOVABLE(query_iterator)
|
||||
public:
|
||||
query_iterator & operator=(BOOST_COPY_ASSIGN_REF(query_iterator) o)
|
||||
{
|
||||
if ( this != boost::addressof(o) )
|
||||
{
|
||||
m_ptr.reset(o.m_ptr.get() ? o.m_ptr->clone() : 0);
|
||||
}
|
||||
return *this;
|
||||
}
|
||||
query_iterator(BOOST_RV_REF(query_iterator) o)
|
||||
: m_ptr(0)
|
||||
{
|
||||
m_ptr.swap(o.m_ptr);
|
||||
}
|
||||
query_iterator & operator=(BOOST_RV_REF(query_iterator) o)
|
||||
{
|
||||
if ( this != boost::addressof(o) )
|
||||
{
|
||||
m_ptr.swap(o.m_ptr);
|
||||
o.m_ptr.reset();
|
||||
}
|
||||
return *this;
|
||||
}
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_QUERY_ITERATORS_USE_MOVE
|
||||
|
||||
reference operator*() const
|
||||
{
|
||||
return m_ptr->dereference();
|
||||
}
|
||||
|
||||
const value_type * operator->() const
|
||||
{
|
||||
return boost::addressof(m_ptr->dereference());
|
||||
}
|
||||
|
||||
query_iterator & operator++()
|
||||
{
|
||||
m_ptr->increment();
|
||||
return *this;
|
||||
}
|
||||
|
||||
query_iterator operator++(int)
|
||||
{
|
||||
query_iterator temp = *this;
|
||||
this->operator++();
|
||||
return temp;
|
||||
}
|
||||
|
||||
friend bool operator==(query_iterator const& l, query_iterator const& r)
|
||||
{
|
||||
if ( l.m_ptr.get() )
|
||||
{
|
||||
if ( r.m_ptr.get() )
|
||||
return l.m_ptr->equals(*r.m_ptr);
|
||||
else
|
||||
return l.m_ptr->is_end();
|
||||
}
|
||||
else
|
||||
{
|
||||
if ( r.m_ptr.get() )
|
||||
return r.m_ptr->is_end();
|
||||
else
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
private:
|
||||
iterator_ptr m_ptr;
|
||||
};
|
||||
|
||||
}}}}}} // namespace boost::geometry::index::detail::rtree::iterators
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_QUERY_ITERATORS_HPP
|
||||
+234
@@ -0,0 +1,234 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree R*-tree next node choosing algorithm implementation
|
||||
//
|
||||
// Copyright (c) 2011-2017 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_RTREE_RSTAR_CHOOSE_NEXT_NODE_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_RSTAR_CHOOSE_NEXT_NODE_HPP
|
||||
|
||||
#include <algorithm>
|
||||
|
||||
#include <boost/geometry/algorithms/expand.hpp>
|
||||
|
||||
#include <boost/geometry/index/detail/algorithms/content.hpp>
|
||||
#include <boost/geometry/index/detail/algorithms/intersection_content.hpp>
|
||||
#include <boost/geometry/index/detail/algorithms/nth_element.hpp>
|
||||
#include <boost/geometry/index/detail/algorithms/union_content.hpp>
|
||||
|
||||
#include <boost/geometry/index/detail/rtree/node/node.hpp>
|
||||
#include <boost/geometry/index/detail/rtree/visitors/is_leaf.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree {
|
||||
|
||||
template <typename Value, typename Options, typename Box, typename Allocators>
|
||||
class choose_next_node<Value, Options, Box, Allocators, choose_by_overlap_diff_tag>
|
||||
{
|
||||
typedef typename rtree::node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef typename rtree::elements_type<internal_node>::type children_type;
|
||||
typedef typename children_type::value_type child_type;
|
||||
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
typedef typename index::detail::default_content_result<Box>::type content_type;
|
||||
|
||||
public:
|
||||
template <typename Indexable>
|
||||
static inline size_t apply(internal_node & n,
|
||||
Indexable const& indexable,
|
||||
parameters_type const& parameters,
|
||||
size_t node_relative_level)
|
||||
{
|
||||
::boost::ignore_unused_variable_warning(parameters);
|
||||
|
||||
children_type & children = rtree::elements(n);
|
||||
|
||||
// children are leafs
|
||||
if ( node_relative_level <= 1 )
|
||||
{
|
||||
return choose_by_minimum_overlap_cost(children, indexable, parameters.get_overlap_cost_threshold());
|
||||
}
|
||||
// children are internal nodes
|
||||
else
|
||||
return choose_by_minimum_content_cost(children, indexable);
|
||||
}
|
||||
|
||||
private:
|
||||
template <typename Indexable>
|
||||
static inline size_t choose_by_minimum_overlap_cost(children_type const& children,
|
||||
Indexable const& indexable,
|
||||
size_t overlap_cost_threshold)
|
||||
{
|
||||
const size_t children_count = children.size();
|
||||
|
||||
content_type min_content_diff = (std::numeric_limits<content_type>::max)();
|
||||
content_type min_content = (std::numeric_limits<content_type>::max)();
|
||||
size_t choosen_index = 0;
|
||||
|
||||
// create container of children sorted by content enlargement needed to include the new value
|
||||
typedef boost::tuple<size_t, content_type, content_type> child_contents;
|
||||
|
||||
typename rtree::container_from_elements_type<children_type, child_contents>::type children_contents;
|
||||
children_contents.resize(children_count);
|
||||
|
||||
for ( size_t i = 0 ; i < children_count ; ++i )
|
||||
{
|
||||
child_type const& ch_i = children[i];
|
||||
|
||||
// expanded child node's box
|
||||
Box box_exp(ch_i.first);
|
||||
geometry::expand(box_exp, indexable);
|
||||
|
||||
// areas difference
|
||||
content_type content = index::detail::content(box_exp);
|
||||
content_type content_diff = content - index::detail::content(ch_i.first);
|
||||
|
||||
children_contents[i] = boost::make_tuple(i, content_diff, content);
|
||||
|
||||
if ( content_diff < min_content_diff ||
|
||||
(content_diff == min_content_diff && content < min_content) )
|
||||
{
|
||||
min_content_diff = content_diff;
|
||||
min_content = content;
|
||||
choosen_index = i;
|
||||
}
|
||||
}
|
||||
|
||||
// is this assumption ok? if min_content_diff == 0 there is no overlap increase?
|
||||
|
||||
if ( min_content_diff < -std::numeric_limits<double>::epsilon() || std::numeric_limits<double>::epsilon() < min_content_diff )
|
||||
{
|
||||
size_t first_n_children_count = children_count;
|
||||
if ( 0 < overlap_cost_threshold && overlap_cost_threshold < children.size() )
|
||||
{
|
||||
first_n_children_count = overlap_cost_threshold;
|
||||
// rearrange by content_diff
|
||||
// in order to calculate nearly minimum overlap cost
|
||||
index::detail::nth_element(children_contents.begin(), children_contents.begin() + first_n_children_count, children_contents.end(), content_diff_less);
|
||||
}
|
||||
|
||||
// calculate minimum or nearly minimum overlap cost
|
||||
choosen_index = choose_by_minimum_overlap_cost_first_n(children, indexable, first_n_children_count, children_count, children_contents);
|
||||
}
|
||||
|
||||
return choosen_index;
|
||||
}
|
||||
|
||||
static inline bool content_diff_less(boost::tuple<size_t, content_type, content_type> const& p1, boost::tuple<size_t, content_type, content_type> const& p2)
|
||||
{
|
||||
return boost::get<1>(p1) < boost::get<1>(p2) ||
|
||||
(boost::get<1>(p1) == boost::get<1>(p2) && boost::get<2>(p1) < boost::get<2>(p2));
|
||||
}
|
||||
|
||||
template <typename Indexable, typename ChildrenContents>
|
||||
static inline size_t choose_by_minimum_overlap_cost_first_n(children_type const& children,
|
||||
Indexable const& indexable,
|
||||
size_t const first_n_children_count,
|
||||
size_t const children_count,
|
||||
ChildrenContents const& children_contents)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(first_n_children_count <= children_count, "unexpected value");
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(children_contents.size() == children_count, "unexpected number of elements");
|
||||
|
||||
// choose index with smallest overlap change value, or content change or smallest content
|
||||
size_t choosen_index = 0;
|
||||
content_type smallest_overlap_diff = (std::numeric_limits<content_type>::max)();
|
||||
content_type smallest_content_diff = (std::numeric_limits<content_type>::max)();
|
||||
content_type smallest_content = (std::numeric_limits<content_type>::max)();
|
||||
|
||||
// for each child node
|
||||
for (size_t i = 0 ; i < first_n_children_count ; ++i )
|
||||
{
|
||||
child_type const& ch_i = children[i];
|
||||
|
||||
Box box_exp(ch_i.first);
|
||||
// calculate expanded box of child node ch_i
|
||||
geometry::expand(box_exp, indexable);
|
||||
|
||||
content_type overlap_diff = 0;
|
||||
|
||||
// calculate overlap
|
||||
for ( size_t j = 0 ; j < children_count ; ++j )
|
||||
{
|
||||
if ( i != j )
|
||||
{
|
||||
child_type const& ch_j = children[j];
|
||||
|
||||
content_type overlap_exp = index::detail::intersection_content(box_exp, ch_j.first);
|
||||
if ( overlap_exp < -std::numeric_limits<content_type>::epsilon() || std::numeric_limits<content_type>::epsilon() < overlap_exp )
|
||||
{
|
||||
overlap_diff += overlap_exp - index::detail::intersection_content(ch_i.first, ch_j.first);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
content_type content = boost::get<2>(children_contents[i]);
|
||||
content_type content_diff = boost::get<1>(children_contents[i]);
|
||||
|
||||
// update result
|
||||
if ( overlap_diff < smallest_overlap_diff ||
|
||||
( overlap_diff == smallest_overlap_diff && ( content_diff < smallest_content_diff ||
|
||||
( content_diff == smallest_content_diff && content < smallest_content ) )
|
||||
) )
|
||||
{
|
||||
smallest_overlap_diff = overlap_diff;
|
||||
smallest_content_diff = content_diff;
|
||||
smallest_content = content;
|
||||
choosen_index = i;
|
||||
}
|
||||
}
|
||||
|
||||
return choosen_index;
|
||||
}
|
||||
|
||||
template <typename Indexable>
|
||||
static inline size_t choose_by_minimum_content_cost(children_type const& children, Indexable const& indexable)
|
||||
{
|
||||
size_t children_count = children.size();
|
||||
|
||||
// choose index with smallest content change or smallest content
|
||||
size_t choosen_index = 0;
|
||||
content_type smallest_content_diff = (std::numeric_limits<content_type>::max)();
|
||||
content_type smallest_content = (std::numeric_limits<content_type>::max)();
|
||||
|
||||
// choose the child which requires smallest box expansion to store the indexable
|
||||
for ( size_t i = 0 ; i < children_count ; ++i )
|
||||
{
|
||||
child_type const& ch_i = children[i];
|
||||
|
||||
// expanded child node's box
|
||||
Box box_exp(ch_i.first);
|
||||
geometry::expand(box_exp, indexable);
|
||||
|
||||
// areas difference
|
||||
content_type content = index::detail::content(box_exp);
|
||||
content_type content_diff = content - index::detail::content(ch_i.first);
|
||||
|
||||
// update the result
|
||||
if ( content_diff < smallest_content_diff ||
|
||||
( content_diff == smallest_content_diff && content < smallest_content ) )
|
||||
{
|
||||
smallest_content_diff = content_diff;
|
||||
smallest_content = content;
|
||||
choosen_index = i;
|
||||
}
|
||||
}
|
||||
|
||||
return choosen_index;
|
||||
}
|
||||
};
|
||||
|
||||
}} // namespace detail::rtree
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_RSTAR_CHOOSE_NEXT_NODE_HPP
|
||||
+591
@@ -0,0 +1,591 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree R*-tree insert algorithm implementation
|
||||
//
|
||||
// Copyright (c) 2011-2015 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_RTREE_RSTAR_INSERT_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_RSTAR_INSERT_HPP
|
||||
|
||||
#include <boost/geometry/index/detail/algorithms/content.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree { namespace visitors {
|
||||
|
||||
namespace rstar {
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
class remove_elements_to_reinsert
|
||||
{
|
||||
public:
|
||||
typedef typename rtree::node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
//typedef typename Allocators::internal_node_pointer internal_node_pointer;
|
||||
typedef internal_node * internal_node_pointer;
|
||||
|
||||
template <typename ResultElements, typename Node>
|
||||
static inline void apply(ResultElements & result_elements,
|
||||
Node & n,
|
||||
internal_node_pointer parent,
|
||||
size_t current_child_index,
|
||||
parameters_type const& parameters,
|
||||
Translator const& translator,
|
||||
Allocators & allocators)
|
||||
{
|
||||
typedef typename rtree::elements_type<Node>::type elements_type;
|
||||
typedef typename elements_type::value_type element_type;
|
||||
typedef typename geometry::point_type<Box>::type point_type;
|
||||
// TODO: awulkiew - change second point_type to the point type of the Indexable?
|
||||
typedef typename
|
||||
geometry::default_comparable_distance_result<point_type>::type
|
||||
comparable_distance_type;
|
||||
|
||||
elements_type & elements = rtree::elements(n);
|
||||
|
||||
const size_t elements_count = parameters.get_max_elements() + 1;
|
||||
const size_t reinserted_elements_count = (::std::min)(parameters.get_reinserted_elements(), elements_count - parameters.get_min_elements());
|
||||
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(parent, "node shouldn't be the root node");
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(elements.size() == elements_count, "unexpected elements number");
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(0 < reinserted_elements_count, "wrong value of elements to reinsert");
|
||||
|
||||
// calculate current node's center
|
||||
point_type node_center;
|
||||
geometry::centroid(rtree::elements(*parent)[current_child_index].first, node_center);
|
||||
|
||||
// fill the container of centers' distances of children from current node's center
|
||||
typedef typename index::detail::rtree::container_from_elements_type<
|
||||
elements_type,
|
||||
std::pair<comparable_distance_type, element_type>
|
||||
>::type sorted_elements_type;
|
||||
|
||||
sorted_elements_type sorted_elements;
|
||||
// If constructor is used instead of resize() MS implementation leaks here
|
||||
sorted_elements.reserve(elements_count); // MAY THROW, STRONG (V, E: alloc, copy)
|
||||
|
||||
for ( typename elements_type::const_iterator it = elements.begin() ;
|
||||
it != elements.end() ; ++it )
|
||||
{
|
||||
point_type element_center;
|
||||
geometry::centroid( rtree::element_indexable(*it, translator), element_center);
|
||||
sorted_elements.push_back(std::make_pair(
|
||||
geometry::comparable_distance(node_center, element_center),
|
||||
*it)); // MAY THROW (V, E: copy)
|
||||
}
|
||||
|
||||
// sort elements by distances from center
|
||||
std::partial_sort(
|
||||
sorted_elements.begin(),
|
||||
sorted_elements.begin() + reinserted_elements_count,
|
||||
sorted_elements.end(),
|
||||
distances_dsc<comparable_distance_type, element_type>); // MAY THROW, BASIC (V, E: copy)
|
||||
|
||||
// copy elements which will be reinserted
|
||||
result_elements.clear();
|
||||
result_elements.reserve(reinserted_elements_count); // MAY THROW, STRONG (V, E: alloc, copy)
|
||||
for ( typename sorted_elements_type::const_iterator it = sorted_elements.begin() ;
|
||||
it != sorted_elements.begin() + reinserted_elements_count ; ++it )
|
||||
{
|
||||
result_elements.push_back(it->second); // MAY THROW (V, E: copy)
|
||||
}
|
||||
|
||||
BOOST_TRY
|
||||
{
|
||||
// copy remaining elements to the current node
|
||||
elements.clear();
|
||||
elements.reserve(elements_count - reinserted_elements_count); // SHOULDN'T THROW (new_size <= old size)
|
||||
for ( typename sorted_elements_type::const_iterator it = sorted_elements.begin() + reinserted_elements_count;
|
||||
it != sorted_elements.end() ; ++it )
|
||||
{
|
||||
elements.push_back(it->second); // MAY THROW (V, E: copy)
|
||||
}
|
||||
}
|
||||
BOOST_CATCH(...)
|
||||
{
|
||||
elements.clear();
|
||||
|
||||
for ( typename sorted_elements_type::iterator it = sorted_elements.begin() ;
|
||||
it != sorted_elements.end() ; ++it )
|
||||
{
|
||||
destroy_element<Value, Options, Translator, Box, Allocators>::apply(it->second, allocators);
|
||||
}
|
||||
|
||||
BOOST_RETHROW // RETHROW
|
||||
}
|
||||
BOOST_CATCH_END
|
||||
|
||||
::boost::ignore_unused_variable_warning(parameters);
|
||||
}
|
||||
|
||||
private:
|
||||
template <typename Distance, typename El>
|
||||
static inline bool distances_asc(
|
||||
std::pair<Distance, El> const& d1,
|
||||
std::pair<Distance, El> const& d2)
|
||||
{
|
||||
return d1.first < d2.first;
|
||||
}
|
||||
|
||||
template <typename Distance, typename El>
|
||||
static inline bool distances_dsc(
|
||||
std::pair<Distance, El> const& d1,
|
||||
std::pair<Distance, El> const& d2)
|
||||
{
|
||||
return d1.first > d2.first;
|
||||
}
|
||||
};
|
||||
|
||||
template <size_t InsertIndex, typename Element, typename Value, typename Options, typename Box, typename Allocators>
|
||||
struct level_insert_elements_type
|
||||
{
|
||||
typedef typename rtree::elements_type<
|
||||
typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type
|
||||
>::type type;
|
||||
};
|
||||
|
||||
template <typename Value, typename Options, typename Box, typename Allocators>
|
||||
struct level_insert_elements_type<0, Value, Value, Options, Box, Allocators>
|
||||
{
|
||||
typedef typename rtree::elements_type<
|
||||
typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type
|
||||
>::type type;
|
||||
};
|
||||
|
||||
template <size_t InsertIndex, typename Element, typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
struct level_insert_base
|
||||
: public detail::insert<Element, Value, Options, Translator, Box, Allocators>
|
||||
{
|
||||
typedef detail::insert<Element, Value, Options, Translator, Box, Allocators> base;
|
||||
typedef typename base::node node;
|
||||
typedef typename base::internal_node internal_node;
|
||||
typedef typename base::leaf leaf;
|
||||
|
||||
typedef typename level_insert_elements_type<InsertIndex, Element, Value, Options, Box, Allocators>::type elements_type;
|
||||
typedef typename index::detail::rtree::container_from_elements_type<
|
||||
elements_type,
|
||||
typename elements_type::value_type
|
||||
>::type result_elements_type;
|
||||
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
typedef typename Allocators::node_pointer node_pointer;
|
||||
typedef typename Allocators::size_type size_type;
|
||||
|
||||
inline level_insert_base(node_pointer & root,
|
||||
size_type & leafs_level,
|
||||
Element const& element,
|
||||
parameters_type const& parameters,
|
||||
Translator const& translator,
|
||||
Allocators & allocators,
|
||||
size_type relative_level)
|
||||
: base(root, leafs_level, element, parameters, translator, allocators, relative_level)
|
||||
, result_relative_level(0)
|
||||
{}
|
||||
|
||||
template <typename Node>
|
||||
inline void handle_possible_reinsert_or_split_of_root(Node &n)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(result_elements.empty(), "reinsert should be handled only once for level");
|
||||
|
||||
result_relative_level = base::m_leafs_level - base::m_traverse_data.current_level;
|
||||
|
||||
// overflow
|
||||
if ( base::m_parameters.get_max_elements() < rtree::elements(n).size() )
|
||||
{
|
||||
// node isn't root node
|
||||
if ( !base::m_traverse_data.current_is_root() )
|
||||
{
|
||||
// NOTE: exception-safety
|
||||
// After an exception result_elements may contain garbage, don't use it
|
||||
rstar::remove_elements_to_reinsert<Value, Options, Translator, Box, Allocators>::apply(
|
||||
result_elements, n,
|
||||
base::m_traverse_data.parent, base::m_traverse_data.current_child_index,
|
||||
base::m_parameters, base::m_translator, base::m_allocators); // MAY THROW, BASIC (V, E: alloc, copy)
|
||||
}
|
||||
// node is root node
|
||||
else
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(&n == &rtree::get<Node>(*base::m_root_node), "node should be the root node");
|
||||
base::split(n); // MAY THROW (V, E: alloc, copy, N: alloc)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
template <typename Node>
|
||||
inline void handle_possible_split(Node &n) const
|
||||
{
|
||||
// overflow
|
||||
if ( base::m_parameters.get_max_elements() < rtree::elements(n).size() )
|
||||
{
|
||||
base::split(n); // MAY THROW (V, E: alloc, copy, N: alloc)
|
||||
}
|
||||
}
|
||||
|
||||
template <typename Node>
|
||||
inline void recalculate_aabb_if_necessary(Node const& n) const
|
||||
{
|
||||
if ( !result_elements.empty() && !base::m_traverse_data.current_is_root() )
|
||||
{
|
||||
// calulate node's new box
|
||||
recalculate_aabb(n);
|
||||
}
|
||||
}
|
||||
|
||||
template <typename Node>
|
||||
inline void recalculate_aabb(Node const& n) const
|
||||
{
|
||||
base::m_traverse_data.current_element().first =
|
||||
elements_box<Box>(rtree::elements(n).begin(), rtree::elements(n).end(), base::m_translator);
|
||||
}
|
||||
|
||||
inline void recalculate_aabb(leaf const& n) const
|
||||
{
|
||||
base::m_traverse_data.current_element().first =
|
||||
values_box<Box>(rtree::elements(n).begin(), rtree::elements(n).end(), base::m_translator);
|
||||
}
|
||||
|
||||
size_type result_relative_level;
|
||||
result_elements_type result_elements;
|
||||
};
|
||||
|
||||
template <size_t InsertIndex, typename Element, typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
struct level_insert
|
||||
: public level_insert_base<InsertIndex, Element, Value, Options, Translator, Box, Allocators>
|
||||
{
|
||||
typedef level_insert_base<InsertIndex, Element, Value, Options, Translator, Box, Allocators> base;
|
||||
typedef typename base::node node;
|
||||
typedef typename base::internal_node internal_node;
|
||||
typedef typename base::leaf leaf;
|
||||
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
typedef typename Allocators::node_pointer node_pointer;
|
||||
typedef typename Allocators::size_type size_type;
|
||||
|
||||
inline level_insert(node_pointer & root,
|
||||
size_type & leafs_level,
|
||||
Element const& element,
|
||||
parameters_type const& parameters,
|
||||
Translator const& translator,
|
||||
Allocators & allocators,
|
||||
size_type relative_level)
|
||||
: base(root, leafs_level, element, parameters, translator, allocators, relative_level)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node & n)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(base::m_traverse_data.current_level < base::m_leafs_level, "unexpected level");
|
||||
|
||||
if ( base::m_traverse_data.current_level < base::m_level )
|
||||
{
|
||||
// next traversing step
|
||||
base::traverse(*this, n); // MAY THROW (E: alloc, copy, N: alloc)
|
||||
|
||||
// further insert
|
||||
if ( 0 < InsertIndex )
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(0 < base::m_level, "illegal level value, level shouldn't be the root level for 0 < InsertIndex");
|
||||
|
||||
if ( base::m_traverse_data.current_level == base::m_level - 1 )
|
||||
{
|
||||
base::handle_possible_reinsert_or_split_of_root(n); // MAY THROW (E: alloc, copy, N: alloc)
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(base::m_level == base::m_traverse_data.current_level, "unexpected level");
|
||||
|
||||
BOOST_TRY
|
||||
{
|
||||
// push new child node
|
||||
rtree::elements(n).push_back(base::m_element); // MAY THROW, STRONG (E: alloc, copy)
|
||||
}
|
||||
BOOST_CATCH(...)
|
||||
{
|
||||
// NOTE: exception-safety
|
||||
// if the insert fails above, the element won't be stored in the tree, so delete it
|
||||
|
||||
rtree::visitors::destroy<Value, Options, Translator, Box, Allocators> del_v(base::m_element.second, base::m_allocators);
|
||||
rtree::apply_visitor(del_v, *base::m_element.second);
|
||||
|
||||
BOOST_RETHROW // RETHROW
|
||||
}
|
||||
BOOST_CATCH_END
|
||||
|
||||
// first insert
|
||||
if ( 0 == InsertIndex )
|
||||
{
|
||||
base::handle_possible_reinsert_or_split_of_root(n); // MAY THROW (E: alloc, copy, N: alloc)
|
||||
}
|
||||
// not the first insert
|
||||
else
|
||||
{
|
||||
base::handle_possible_split(n); // MAY THROW (E: alloc, N: alloc)
|
||||
}
|
||||
}
|
||||
|
||||
base::recalculate_aabb_if_necessary(n);
|
||||
}
|
||||
|
||||
inline void operator()(leaf &)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(false, "this visitor can't be used for a leaf");
|
||||
}
|
||||
};
|
||||
|
||||
template <size_t InsertIndex, typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
struct level_insert<InsertIndex, Value, Value, Options, Translator, Box, Allocators>
|
||||
: public level_insert_base<InsertIndex, Value, Value, Options, Translator, Box, Allocators>
|
||||
{
|
||||
typedef level_insert_base<InsertIndex, Value, Value, Options, Translator, Box, Allocators> base;
|
||||
typedef typename base::node node;
|
||||
typedef typename base::internal_node internal_node;
|
||||
typedef typename base::leaf leaf;
|
||||
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
typedef typename Allocators::node_pointer node_pointer;
|
||||
typedef typename Allocators::size_type size_type;
|
||||
|
||||
inline level_insert(node_pointer & root,
|
||||
size_type & leafs_level,
|
||||
Value const& v,
|
||||
parameters_type const& parameters,
|
||||
Translator const& translator,
|
||||
Allocators & allocators,
|
||||
size_type relative_level)
|
||||
: base(root, leafs_level, v, parameters, translator, allocators, relative_level)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node & n)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(base::m_traverse_data.current_level < base::m_leafs_level, "unexpected level");
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(base::m_traverse_data.current_level < base::m_level, "unexpected level");
|
||||
|
||||
// next traversing step
|
||||
base::traverse(*this, n); // MAY THROW (V, E: alloc, copy, N: alloc)
|
||||
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(0 < base::m_level, "illegal level value, level shouldn't be the root level for 0 < InsertIndex");
|
||||
|
||||
if ( base::m_traverse_data.current_level == base::m_level - 1 )
|
||||
{
|
||||
base::handle_possible_reinsert_or_split_of_root(n); // MAY THROW (E: alloc, copy, N: alloc)
|
||||
}
|
||||
|
||||
base::recalculate_aabb_if_necessary(n);
|
||||
}
|
||||
|
||||
inline void operator()(leaf & n)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(base::m_traverse_data.current_level == base::m_leafs_level,
|
||||
"unexpected level");
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(base::m_level == base::m_traverse_data.current_level ||
|
||||
base::m_level == (std::numeric_limits<size_t>::max)(),
|
||||
"unexpected level");
|
||||
|
||||
rtree::elements(n).push_back(base::m_element); // MAY THROW, STRONG (V: alloc, copy)
|
||||
|
||||
base::handle_possible_split(n); // MAY THROW (V: alloc, copy, N: alloc)
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
struct level_insert<0, Value, Value, Options, Translator, Box, Allocators>
|
||||
: public level_insert_base<0, Value, Value, Options, Translator, Box, Allocators>
|
||||
{
|
||||
typedef level_insert_base<0, Value, Value, Options, Translator, Box, Allocators> base;
|
||||
typedef typename base::node node;
|
||||
typedef typename base::internal_node internal_node;
|
||||
typedef typename base::leaf leaf;
|
||||
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
typedef typename Allocators::node_pointer node_pointer;
|
||||
typedef typename Allocators::size_type size_type;
|
||||
|
||||
inline level_insert(node_pointer & root,
|
||||
size_type & leafs_level,
|
||||
Value const& v,
|
||||
parameters_type const& parameters,
|
||||
Translator const& translator,
|
||||
Allocators & allocators,
|
||||
size_type relative_level)
|
||||
: base(root, leafs_level, v, parameters, translator, allocators, relative_level)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node & n)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(base::m_traverse_data.current_level < base::m_leafs_level,
|
||||
"unexpected level");
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(base::m_traverse_data.current_level < base::m_level,
|
||||
"unexpected level");
|
||||
|
||||
// next traversing step
|
||||
base::traverse(*this, n); // MAY THROW (V: alloc, copy, N: alloc)
|
||||
|
||||
base::recalculate_aabb_if_necessary(n);
|
||||
}
|
||||
|
||||
inline void operator()(leaf & n)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(base::m_traverse_data.current_level == base::m_leafs_level,
|
||||
"unexpected level");
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(base::m_level == base::m_traverse_data.current_level ||
|
||||
base::m_level == (std::numeric_limits<size_t>::max)(),
|
||||
"unexpected level");
|
||||
|
||||
rtree::elements(n).push_back(base::m_element); // MAY THROW, STRONG (V: alloc, copy)
|
||||
|
||||
base::handle_possible_reinsert_or_split_of_root(n); // MAY THROW (V: alloc, copy, N: alloc)
|
||||
|
||||
base::recalculate_aabb_if_necessary(n);
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace rstar
|
||||
|
||||
// R*-tree insert visitor
|
||||
// After passing the Element to insert visitor the Element is managed by the tree
|
||||
// I.e. one should not delete the node passed to the insert visitor after exception is thrown
|
||||
// because this visitor may delete it
|
||||
template <typename Element, typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
class insert<Element, Value, Options, Translator, Box, Allocators, insert_reinsert_tag>
|
||||
: public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, false>::type
|
||||
{
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
typedef typename rtree::node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef typename Allocators::node_pointer node_pointer;
|
||||
typedef typename Allocators::size_type size_type;
|
||||
|
||||
public:
|
||||
inline insert(node_pointer & root,
|
||||
size_type & leafs_level,
|
||||
Element const& element,
|
||||
parameters_type const& parameters,
|
||||
Translator const& translator,
|
||||
Allocators & allocators,
|
||||
size_type relative_level = 0)
|
||||
: m_root(root), m_leafs_level(leafs_level), m_element(element)
|
||||
, m_parameters(parameters), m_translator(translator)
|
||||
, m_relative_level(relative_level), m_allocators(allocators)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node & n)
|
||||
{
|
||||
boost::ignore_unused(n);
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(&n == &rtree::get<internal_node>(*m_root), "current node should be the root");
|
||||
|
||||
// Distinguish between situation when reinserts are required and use adequate visitor, otherwise use default one
|
||||
if ( m_parameters.get_reinserted_elements() > 0 )
|
||||
{
|
||||
rstar::level_insert<0, Element, Value, Options, Translator, Box, Allocators> lins_v(
|
||||
m_root, m_leafs_level, m_element, m_parameters, m_translator, m_allocators, m_relative_level);
|
||||
|
||||
rtree::apply_visitor(lins_v, *m_root); // MAY THROW (V, E: alloc, copy, N: alloc)
|
||||
|
||||
if ( !lins_v.result_elements.empty() )
|
||||
{
|
||||
recursive_reinsert(lins_v.result_elements, lins_v.result_relative_level); // MAY THROW (V, E: alloc, copy, N: alloc)
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
visitors::insert<Element, Value, Options, Translator, Box, Allocators, insert_default_tag> ins_v(
|
||||
m_root, m_leafs_level, m_element, m_parameters, m_translator, m_allocators, m_relative_level);
|
||||
|
||||
rtree::apply_visitor(ins_v, *m_root);
|
||||
}
|
||||
}
|
||||
|
||||
inline void operator()(leaf & n)
|
||||
{
|
||||
boost::ignore_unused(n);
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(&n == &rtree::get<leaf>(*m_root), "current node should be the root");
|
||||
|
||||
// Distinguish between situation when reinserts are required and use adequate visitor, otherwise use default one
|
||||
if ( m_parameters.get_reinserted_elements() > 0 )
|
||||
{
|
||||
rstar::level_insert<0, Element, Value, Options, Translator, Box, Allocators> lins_v(
|
||||
m_root, m_leafs_level, m_element, m_parameters, m_translator, m_allocators, m_relative_level);
|
||||
|
||||
rtree::apply_visitor(lins_v, *m_root); // MAY THROW (V, E: alloc, copy, N: alloc)
|
||||
|
||||
// we're in the root, so root should be split and there should be no elements to reinsert
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(lins_v.result_elements.empty(), "unexpected state");
|
||||
}
|
||||
else
|
||||
{
|
||||
visitors::insert<Element, Value, Options, Translator, Box, Allocators, insert_default_tag> ins_v(
|
||||
m_root, m_leafs_level, m_element, m_parameters, m_translator, m_allocators, m_relative_level);
|
||||
|
||||
rtree::apply_visitor(ins_v, *m_root);
|
||||
}
|
||||
}
|
||||
|
||||
private:
|
||||
template <typename Elements>
|
||||
inline void recursive_reinsert(Elements & elements, size_t relative_level)
|
||||
{
|
||||
typedef typename Elements::value_type element_type;
|
||||
|
||||
// reinsert children starting from the minimum distance
|
||||
typename Elements::reverse_iterator it = elements.rbegin();
|
||||
for ( ; it != elements.rend() ; ++it)
|
||||
{
|
||||
rstar::level_insert<1, element_type, Value, Options, Translator, Box, Allocators> lins_v(
|
||||
m_root, m_leafs_level, *it, m_parameters, m_translator, m_allocators, relative_level);
|
||||
|
||||
BOOST_TRY
|
||||
{
|
||||
rtree::apply_visitor(lins_v, *m_root); // MAY THROW (V, E: alloc, copy, N: alloc)
|
||||
}
|
||||
BOOST_CATCH(...)
|
||||
{
|
||||
++it;
|
||||
for ( ; it != elements.rend() ; ++it)
|
||||
rtree::destroy_element<Value, Options, Translator, Box, Allocators>::apply(*it, m_allocators);
|
||||
BOOST_RETHROW // RETHROW
|
||||
}
|
||||
BOOST_CATCH_END
|
||||
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(relative_level + 1 == lins_v.result_relative_level, "unexpected level");
|
||||
|
||||
// non-root relative level
|
||||
if ( lins_v.result_relative_level < m_leafs_level && !lins_v.result_elements.empty())
|
||||
{
|
||||
recursive_reinsert(lins_v.result_elements, lins_v.result_relative_level); // MAY THROW (V, E: alloc, copy, N: alloc)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
node_pointer & m_root;
|
||||
size_type & m_leafs_level;
|
||||
Element const& m_element;
|
||||
|
||||
parameters_type const& m_parameters;
|
||||
Translator const& m_translator;
|
||||
|
||||
size_type m_relative_level;
|
||||
|
||||
Allocators & m_allocators;
|
||||
};
|
||||
|
||||
}}} // namespace detail::rtree::visitors
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_RSTAR_INSERT_HPP
|
||||
+470
@@ -0,0 +1,470 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree R*-tree split algorithm implementation
|
||||
//
|
||||
// Copyright (c) 2011-2017 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_RTREE_RSTAR_REDISTRIBUTE_ELEMENTS_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_RSTAR_REDISTRIBUTE_ELEMENTS_HPP
|
||||
|
||||
#include <boost/geometry/index/detail/algorithms/intersection_content.hpp>
|
||||
#include <boost/geometry/index/detail/algorithms/margin.hpp>
|
||||
#include <boost/geometry/index/detail/algorithms/nth_element.hpp>
|
||||
#include <boost/geometry/index/detail/algorithms/union_content.hpp>
|
||||
|
||||
#include <boost/geometry/index/detail/bounded_view.hpp>
|
||||
|
||||
#include <boost/geometry/index/detail/rtree/node/node.hpp>
|
||||
#include <boost/geometry/index/detail/rtree/visitors/insert.hpp>
|
||||
#include <boost/geometry/index/detail/rtree/visitors/is_leaf.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree {
|
||||
|
||||
namespace rstar {
|
||||
|
||||
template <typename Element, typename Translator, typename Tag, size_t Corner, size_t AxisIndex>
|
||||
class element_axis_corner_less
|
||||
{
|
||||
typedef typename rtree::element_indexable_type<Element, Translator>::type indexable_type;
|
||||
typedef typename geometry::point_type<indexable_type>::type point_type;
|
||||
typedef geometry::model::box<point_type> bounds_type;
|
||||
typedef index::detail::bounded_view<indexable_type, bounds_type> bounded_view_type;
|
||||
|
||||
public:
|
||||
element_axis_corner_less(Translator const& tr)
|
||||
: m_tr(tr)
|
||||
{}
|
||||
|
||||
bool operator()(Element const& e1, Element const& e2) const
|
||||
{
|
||||
bounded_view_type bounded_ind1(rtree::element_indexable(e1, m_tr));
|
||||
bounded_view_type bounded_ind2(rtree::element_indexable(e2, m_tr));
|
||||
|
||||
return geometry::get<Corner, AxisIndex>(bounded_ind1)
|
||||
< geometry::get<Corner, AxisIndex>(bounded_ind2);
|
||||
}
|
||||
|
||||
private:
|
||||
Translator const& m_tr;
|
||||
};
|
||||
|
||||
template <typename Element, typename Translator, size_t Corner, size_t AxisIndex>
|
||||
class element_axis_corner_less<Element, Translator, box_tag, Corner, AxisIndex>
|
||||
{
|
||||
public:
|
||||
element_axis_corner_less(Translator const& tr)
|
||||
: m_tr(tr)
|
||||
{}
|
||||
|
||||
bool operator()(Element const& e1, Element const& e2) const
|
||||
{
|
||||
return geometry::get<Corner, AxisIndex>(rtree::element_indexable(e1, m_tr))
|
||||
< geometry::get<Corner, AxisIndex>(rtree::element_indexable(e2, m_tr));
|
||||
}
|
||||
|
||||
private:
|
||||
Translator const& m_tr;
|
||||
};
|
||||
|
||||
template <typename Element, typename Translator, size_t Corner, size_t AxisIndex>
|
||||
class element_axis_corner_less<Element, Translator, point_tag, Corner, AxisIndex>
|
||||
{
|
||||
public:
|
||||
element_axis_corner_less(Translator const& tr)
|
||||
: m_tr(tr)
|
||||
{}
|
||||
|
||||
bool operator()(Element const& e1, Element const& e2) const
|
||||
{
|
||||
return geometry::get<AxisIndex>(rtree::element_indexable(e1, m_tr))
|
||||
< geometry::get<AxisIndex>(rtree::element_indexable(e2, m_tr));
|
||||
}
|
||||
|
||||
private:
|
||||
Translator const& m_tr;
|
||||
};
|
||||
|
||||
template <typename Box, size_t Corner, size_t AxisIndex>
|
||||
struct choose_split_axis_and_index_for_corner
|
||||
{
|
||||
typedef typename index::detail::default_margin_result<Box>::type margin_type;
|
||||
typedef typename index::detail::default_content_result<Box>::type content_type;
|
||||
|
||||
template <typename Elements, typename Parameters, typename Translator>
|
||||
static inline void apply(Elements const& elements,
|
||||
size_t & choosen_index,
|
||||
margin_type & sum_of_margins,
|
||||
content_type & smallest_overlap,
|
||||
content_type & smallest_content,
|
||||
Parameters const& parameters,
|
||||
Translator const& translator)
|
||||
{
|
||||
typedef typename Elements::value_type element_type;
|
||||
typedef typename rtree::element_indexable_type<element_type, Translator>::type indexable_type;
|
||||
typedef typename tag<indexable_type>::type indexable_tag;
|
||||
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(elements.size() == parameters.get_max_elements() + 1, "wrong number of elements");
|
||||
|
||||
// copy elements
|
||||
Elements elements_copy(elements); // MAY THROW, STRONG (alloc, copy)
|
||||
|
||||
size_t const index_first = parameters.get_min_elements();
|
||||
size_t const index_last = parameters.get_max_elements() - parameters.get_min_elements() + 2;
|
||||
|
||||
// sort elements
|
||||
element_axis_corner_less<element_type, Translator, indexable_tag, Corner, AxisIndex> elements_less(translator);
|
||||
std::sort(elements_copy.begin(), elements_copy.end(), elements_less); // MAY THROW, BASIC (copy)
|
||||
// {
|
||||
// typename Elements::iterator f = elements_copy.begin() + index_first;
|
||||
// typename Elements::iterator l = elements_copy.begin() + index_last;
|
||||
// // NOTE: for stdlibc++ shipped with gcc 4.8.2 std::nth_element is replaced with std::sort anyway
|
||||
// index::detail::nth_element(elements_copy.begin(), f, elements_copy.end(), elements_less); // MAY THROW, BASIC (copy)
|
||||
// index::detail::nth_element(f, l, elements_copy.end(), elements_less); // MAY THROW, BASIC (copy)
|
||||
// std::sort(f, l, elements_less); // MAY THROW, BASIC (copy)
|
||||
// }
|
||||
|
||||
// init outputs
|
||||
choosen_index = index_first;
|
||||
sum_of_margins = 0;
|
||||
smallest_overlap = (std::numeric_limits<content_type>::max)();
|
||||
smallest_content = (std::numeric_limits<content_type>::max)();
|
||||
|
||||
// calculate sum of margins for all distributions
|
||||
for ( size_t i = index_first ; i < index_last ; ++i )
|
||||
{
|
||||
// TODO - awulkiew: may be optimized - box of group 1 may be initialized with
|
||||
// box of min_elems number of elements and expanded for each iteration by another element
|
||||
|
||||
Box box1 = rtree::elements_box<Box>(elements_copy.begin(), elements_copy.begin() + i, translator);
|
||||
Box box2 = rtree::elements_box<Box>(elements_copy.begin() + i, elements_copy.end(), translator);
|
||||
|
||||
sum_of_margins += index::detail::comparable_margin(box1) + index::detail::comparable_margin(box2);
|
||||
|
||||
content_type ovl = index::detail::intersection_content(box1, box2);
|
||||
content_type con = index::detail::content(box1) + index::detail::content(box2);
|
||||
|
||||
// TODO - shouldn't here be < instead of <= ?
|
||||
if ( ovl < smallest_overlap || (ovl == smallest_overlap && con <= smallest_content) )
|
||||
{
|
||||
choosen_index = i;
|
||||
smallest_overlap = ovl;
|
||||
smallest_content = con;
|
||||
}
|
||||
}
|
||||
|
||||
::boost::ignore_unused_variable_warning(parameters);
|
||||
}
|
||||
};
|
||||
|
||||
//template <typename Box, size_t AxisIndex, typename ElementIndexableTag>
|
||||
//struct choose_split_axis_and_index_for_axis
|
||||
//{
|
||||
// BOOST_MPL_ASSERT_MSG(false, NOT_IMPLEMENTED_FOR_THIS_TAG, (ElementIndexableTag));
|
||||
//};
|
||||
|
||||
template <typename Box, size_t AxisIndex, typename ElementIndexableTag>
|
||||
struct choose_split_axis_and_index_for_axis
|
||||
{
|
||||
typedef typename index::detail::default_margin_result<Box>::type margin_type;
|
||||
typedef typename index::detail::default_content_result<Box>::type content_type;
|
||||
|
||||
template <typename Elements, typename Parameters, typename Translator>
|
||||
static inline void apply(Elements const& elements,
|
||||
size_t & choosen_corner,
|
||||
size_t & choosen_index,
|
||||
margin_type & sum_of_margins,
|
||||
content_type & smallest_overlap,
|
||||
content_type & smallest_content,
|
||||
Parameters const& parameters,
|
||||
Translator const& translator)
|
||||
{
|
||||
size_t index1 = 0;
|
||||
margin_type som1 = 0;
|
||||
content_type ovl1 = (std::numeric_limits<content_type>::max)();
|
||||
content_type con1 = (std::numeric_limits<content_type>::max)();
|
||||
|
||||
choose_split_axis_and_index_for_corner<Box, min_corner, AxisIndex>
|
||||
::apply(elements, index1,
|
||||
som1, ovl1, con1,
|
||||
parameters, translator); // MAY THROW, STRONG
|
||||
|
||||
size_t index2 = 0;
|
||||
margin_type som2 = 0;
|
||||
content_type ovl2 = (std::numeric_limits<content_type>::max)();
|
||||
content_type con2 = (std::numeric_limits<content_type>::max)();
|
||||
|
||||
choose_split_axis_and_index_for_corner<Box, max_corner, AxisIndex>
|
||||
::apply(elements, index2,
|
||||
som2, ovl2, con2,
|
||||
parameters, translator); // MAY THROW, STRONG
|
||||
|
||||
sum_of_margins = som1 + som2;
|
||||
|
||||
if ( ovl1 < ovl2 || (ovl1 == ovl2 && con1 <= con2) )
|
||||
{
|
||||
choosen_corner = min_corner;
|
||||
choosen_index = index1;
|
||||
smallest_overlap = ovl1;
|
||||
smallest_content = con1;
|
||||
}
|
||||
else
|
||||
{
|
||||
choosen_corner = max_corner;
|
||||
choosen_index = index2;
|
||||
smallest_overlap = ovl2;
|
||||
smallest_content = con2;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Box, size_t AxisIndex>
|
||||
struct choose_split_axis_and_index_for_axis<Box, AxisIndex, point_tag>
|
||||
{
|
||||
typedef typename index::detail::default_margin_result<Box>::type margin_type;
|
||||
typedef typename index::detail::default_content_result<Box>::type content_type;
|
||||
|
||||
template <typename Elements, typename Parameters, typename Translator>
|
||||
static inline void apply(Elements const& elements,
|
||||
size_t & choosen_corner,
|
||||
size_t & choosen_index,
|
||||
margin_type & sum_of_margins,
|
||||
content_type & smallest_overlap,
|
||||
content_type & smallest_content,
|
||||
Parameters const& parameters,
|
||||
Translator const& translator)
|
||||
{
|
||||
choose_split_axis_and_index_for_corner<Box, min_corner, AxisIndex>
|
||||
::apply(elements, choosen_index,
|
||||
sum_of_margins, smallest_overlap, smallest_content,
|
||||
parameters, translator); // MAY THROW, STRONG
|
||||
|
||||
choosen_corner = min_corner;
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Box, size_t Dimension>
|
||||
struct choose_split_axis_and_index
|
||||
{
|
||||
BOOST_STATIC_ASSERT(0 < Dimension);
|
||||
|
||||
typedef typename index::detail::default_margin_result<Box>::type margin_type;
|
||||
typedef typename index::detail::default_content_result<Box>::type content_type;
|
||||
|
||||
template <typename Elements, typename Parameters, typename Translator>
|
||||
static inline void apply(Elements const& elements,
|
||||
size_t & choosen_axis,
|
||||
size_t & choosen_corner,
|
||||
size_t & choosen_index,
|
||||
margin_type & smallest_sum_of_margins,
|
||||
content_type & smallest_overlap,
|
||||
content_type & smallest_content,
|
||||
Parameters const& parameters,
|
||||
Translator const& translator)
|
||||
{
|
||||
typedef typename rtree::element_indexable_type<typename Elements::value_type, Translator>::type element_indexable_type;
|
||||
|
||||
choose_split_axis_and_index<Box, Dimension - 1>
|
||||
::apply(elements, choosen_axis, choosen_corner, choosen_index,
|
||||
smallest_sum_of_margins, smallest_overlap, smallest_content,
|
||||
parameters, translator); // MAY THROW, STRONG
|
||||
|
||||
margin_type sum_of_margins = 0;
|
||||
|
||||
size_t corner = min_corner;
|
||||
size_t index = 0;
|
||||
|
||||
content_type overlap_val = (std::numeric_limits<content_type>::max)();
|
||||
content_type content_val = (std::numeric_limits<content_type>::max)();
|
||||
|
||||
choose_split_axis_and_index_for_axis<
|
||||
Box,
|
||||
Dimension - 1,
|
||||
typename tag<element_indexable_type>::type
|
||||
>::apply(elements, corner, index, sum_of_margins, overlap_val, content_val, parameters, translator); // MAY THROW, STRONG
|
||||
|
||||
if ( sum_of_margins < smallest_sum_of_margins )
|
||||
{
|
||||
choosen_axis = Dimension - 1;
|
||||
choosen_corner = corner;
|
||||
choosen_index = index;
|
||||
smallest_sum_of_margins = sum_of_margins;
|
||||
smallest_overlap = overlap_val;
|
||||
smallest_content = content_val;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Box>
|
||||
struct choose_split_axis_and_index<Box, 1>
|
||||
{
|
||||
typedef typename index::detail::default_margin_result<Box>::type margin_type;
|
||||
typedef typename index::detail::default_content_result<Box>::type content_type;
|
||||
|
||||
template <typename Elements, typename Parameters, typename Translator>
|
||||
static inline void apply(Elements const& elements,
|
||||
size_t & choosen_axis,
|
||||
size_t & choosen_corner,
|
||||
size_t & choosen_index,
|
||||
margin_type & smallest_sum_of_margins,
|
||||
content_type & smallest_overlap,
|
||||
content_type & smallest_content,
|
||||
Parameters const& parameters,
|
||||
Translator const& translator)
|
||||
{
|
||||
typedef typename rtree::element_indexable_type<typename Elements::value_type, Translator>::type element_indexable_type;
|
||||
|
||||
choosen_axis = 0;
|
||||
|
||||
choose_split_axis_and_index_for_axis<
|
||||
Box,
|
||||
0,
|
||||
typename tag<element_indexable_type>::type
|
||||
>::apply(elements, choosen_corner, choosen_index, smallest_sum_of_margins, smallest_overlap, smallest_content, parameters, translator); // MAY THROW
|
||||
}
|
||||
};
|
||||
|
||||
template <size_t Corner, size_t Dimension, size_t I = 0>
|
||||
struct nth_element
|
||||
{
|
||||
BOOST_STATIC_ASSERT(0 < Dimension);
|
||||
BOOST_STATIC_ASSERT(I < Dimension);
|
||||
|
||||
template <typename Elements, typename Translator>
|
||||
static inline void apply(Elements & elements, const size_t axis, const size_t index, Translator const& tr)
|
||||
{
|
||||
//BOOST_GEOMETRY_INDEX_ASSERT(axis < Dimension, "unexpected axis value");
|
||||
|
||||
if ( axis != I )
|
||||
{
|
||||
nth_element<Corner, Dimension, I + 1>::apply(elements, axis, index, tr); // MAY THROW, BASIC (copy)
|
||||
}
|
||||
else
|
||||
{
|
||||
typedef typename Elements::value_type element_type;
|
||||
typedef typename rtree::element_indexable_type<element_type, Translator>::type indexable_type;
|
||||
typedef typename tag<indexable_type>::type indexable_tag;
|
||||
|
||||
element_axis_corner_less<element_type, Translator, indexable_tag, Corner, I> less(tr);
|
||||
index::detail::nth_element(elements.begin(), elements.begin() + index, elements.end(), less); // MAY THROW, BASIC (copy)
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
template <size_t Corner, size_t Dimension>
|
||||
struct nth_element<Corner, Dimension, Dimension>
|
||||
{
|
||||
template <typename Elements, typename Translator>
|
||||
static inline void apply(Elements & /*elements*/, const size_t /*axis*/, const size_t /*index*/, Translator const& /*tr*/)
|
||||
{}
|
||||
};
|
||||
|
||||
} // namespace rstar
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
struct redistribute_elements<Value, Options, Translator, Box, Allocators, rstar_tag>
|
||||
{
|
||||
typedef typename rtree::node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
static const size_t dimension = geometry::dimension<Box>::value;
|
||||
|
||||
typedef typename index::detail::default_margin_result<Box>::type margin_type;
|
||||
typedef typename index::detail::default_content_result<Box>::type content_type;
|
||||
|
||||
template <typename Node>
|
||||
static inline void apply(
|
||||
Node & n,
|
||||
Node & second_node,
|
||||
Box & box1,
|
||||
Box & box2,
|
||||
parameters_type const& parameters,
|
||||
Translator const& translator,
|
||||
Allocators & allocators)
|
||||
{
|
||||
typedef typename rtree::elements_type<Node>::type elements_type;
|
||||
typedef typename elements_type::value_type element_type;
|
||||
|
||||
elements_type & elements1 = rtree::elements(n);
|
||||
elements_type & elements2 = rtree::elements(second_node);
|
||||
|
||||
// copy original elements - use in-memory storage (std::allocator)
|
||||
// TODO: move if noexcept
|
||||
typedef typename rtree::container_from_elements_type<elements_type, element_type>::type
|
||||
container_type;
|
||||
container_type elements_copy(elements1.begin(), elements1.end()); // MAY THROW, STRONG
|
||||
container_type elements_backup(elements1.begin(), elements1.end()); // MAY THROW, STRONG
|
||||
|
||||
size_t split_axis = 0;
|
||||
size_t split_corner = 0;
|
||||
size_t split_index = parameters.get_min_elements();
|
||||
margin_type smallest_sum_of_margins = (std::numeric_limits<margin_type>::max)();
|
||||
content_type smallest_overlap = (std::numeric_limits<content_type>::max)();
|
||||
content_type smallest_content = (std::numeric_limits<content_type>::max)();
|
||||
|
||||
// NOTE: this function internally copies passed elements
|
||||
// why not pass mutable elements and use the same container for all axes/corners
|
||||
// and again, the same below calling partial_sort/nth_element
|
||||
// It would be even possible to not re-sort/find nth_element if the axis/corner
|
||||
// was found for the last sorting - last combination of axis/corner
|
||||
rstar::choose_split_axis_and_index<Box, dimension>
|
||||
::apply(elements_copy,
|
||||
split_axis, split_corner, split_index,
|
||||
smallest_sum_of_margins, smallest_overlap, smallest_content,
|
||||
parameters, translator); // MAY THROW, STRONG
|
||||
|
||||
// TODO: awulkiew - get rid of following static_casts?
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(split_axis < dimension, "unexpected value");
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(split_corner == static_cast<size_t>(min_corner) || split_corner == static_cast<size_t>(max_corner), "unexpected value");
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(parameters.get_min_elements() <= split_index && split_index <= parameters.get_max_elements() - parameters.get_min_elements() + 1, "unexpected value");
|
||||
|
||||
// TODO: consider using nth_element
|
||||
if ( split_corner == static_cast<size_t>(min_corner) )
|
||||
{
|
||||
rstar::nth_element<min_corner, dimension>
|
||||
::apply(elements_copy, split_axis, split_index, translator); // MAY THROW, BASIC (copy)
|
||||
}
|
||||
else
|
||||
{
|
||||
rstar::nth_element<max_corner, dimension>
|
||||
::apply(elements_copy, split_axis, split_index, translator); // MAY THROW, BASIC (copy)
|
||||
}
|
||||
|
||||
BOOST_TRY
|
||||
{
|
||||
// copy elements to nodes
|
||||
elements1.assign(elements_copy.begin(), elements_copy.begin() + split_index); // MAY THROW, BASIC
|
||||
elements2.assign(elements_copy.begin() + split_index, elements_copy.end()); // MAY THROW, BASIC
|
||||
|
||||
// calculate boxes
|
||||
box1 = rtree::elements_box<Box>(elements1.begin(), elements1.end(), translator);
|
||||
box2 = rtree::elements_box<Box>(elements2.begin(), elements2.end(), translator);
|
||||
}
|
||||
BOOST_CATCH(...)
|
||||
{
|
||||
//elements_copy.clear();
|
||||
elements1.clear();
|
||||
elements2.clear();
|
||||
|
||||
rtree::destroy_elements<Value, Options, Translator, Box, Allocators>::apply(elements_backup, allocators);
|
||||
//elements_backup.clear();
|
||||
|
||||
BOOST_RETHROW // RETHROW, BASIC
|
||||
}
|
||||
BOOST_CATCH_END
|
||||
}
|
||||
};
|
||||
|
||||
}} // namespace detail::rtree
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_RSTAR_REDISTRIBUTE_ELEMENTS_HPP
|
||||
@@ -0,0 +1,18 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree R*-tree algorithm implementation
|
||||
//
|
||||
// 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_RTREE_RSTAR_RSTAR_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_RSTAR_RSTAR_HPP
|
||||
|
||||
#include <boost/geometry/index/detail/rtree/rstar/insert.hpp>
|
||||
#include <boost/geometry/index/detail/rtree/rstar/choose_next_node.hpp>
|
||||
#include <boost/geometry/index/detail/rtree/rstar/redistribute_elements.hpp>
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_RSTAR_RSTAR_HPP
|
||||
+128
@@ -0,0 +1,128 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree boxes validating visitor implementation
|
||||
//
|
||||
// Copyright (c) 2011-2015 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_RTREE_UTILITIES_ARE_BOXES_OK_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_UTILITIES_ARE_BOXES_OK_HPP
|
||||
|
||||
#include <boost/geometry/algorithms/equals.hpp>
|
||||
#include <boost/geometry/index/detail/rtree/node/node.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index { namespace detail { namespace rtree { namespace utilities {
|
||||
|
||||
namespace visitors {
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
class are_boxes_ok
|
||||
: public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, true>::type
|
||||
{
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
public:
|
||||
are_boxes_ok(Translator const& tr, bool exact_match)
|
||||
: result(false), m_tr(tr), m_is_root(true), m_exact_match(exact_match)
|
||||
{}
|
||||
|
||||
void operator()(internal_node const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<internal_node>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
if (elements.empty())
|
||||
{
|
||||
result = false;
|
||||
return;
|
||||
}
|
||||
|
||||
Box box_bckup = m_box;
|
||||
bool is_root_bckup = m_is_root;
|
||||
|
||||
m_is_root = false;
|
||||
|
||||
for ( typename elements_type::const_iterator it = elements.begin();
|
||||
it != elements.end() ; ++it)
|
||||
{
|
||||
m_box = it->first;
|
||||
|
||||
rtree::apply_visitor(*this, *it->second);
|
||||
|
||||
if ( result == false )
|
||||
return;
|
||||
}
|
||||
|
||||
m_box = box_bckup;
|
||||
m_is_root = is_root_bckup;
|
||||
|
||||
Box box_exp = rtree::elements_box<Box>(elements.begin(), elements.end(), m_tr);
|
||||
|
||||
if ( m_exact_match )
|
||||
result = m_is_root || geometry::equals(box_exp, m_box);
|
||||
else
|
||||
result = m_is_root || geometry::covered_by(box_exp, m_box);
|
||||
}
|
||||
|
||||
void operator()(leaf const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<leaf>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
// non-root node
|
||||
if (!m_is_root)
|
||||
{
|
||||
if ( elements.empty() )
|
||||
{
|
||||
result = false;
|
||||
return;
|
||||
}
|
||||
|
||||
Box box_exp = rtree::values_box<Box>(elements.begin(), elements.end(), m_tr);
|
||||
|
||||
if ( m_exact_match )
|
||||
result = geometry::equals(box_exp, m_box);
|
||||
else
|
||||
result = geometry::covered_by(box_exp, m_box);
|
||||
}
|
||||
else
|
||||
result = true;
|
||||
}
|
||||
|
||||
bool result;
|
||||
|
||||
private:
|
||||
Translator const& m_tr;
|
||||
Box m_box;
|
||||
bool m_is_root;
|
||||
bool m_exact_match;
|
||||
};
|
||||
|
||||
} // namespace visitors
|
||||
|
||||
template <typename Rtree> inline
|
||||
bool are_boxes_ok(Rtree const& tree, bool exact_match = true)
|
||||
{
|
||||
typedef utilities::view<Rtree> RTV;
|
||||
RTV rtv(tree);
|
||||
|
||||
visitors::are_boxes_ok<
|
||||
typename RTV::value_type,
|
||||
typename RTV::options_type,
|
||||
typename RTV::translator_type,
|
||||
typename RTV::box_type,
|
||||
typename RTV::allocators_type
|
||||
> v(rtv.translator(), exact_match);
|
||||
|
||||
rtv.apply_visitor(v);
|
||||
|
||||
return v.result;
|
||||
}
|
||||
|
||||
}}}}}} // namespace boost::geometry::index::detail::rtree::utilities
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_UTILITIES_ARE_BOXES_OK_HPP
|
||||
+110
@@ -0,0 +1,110 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree nodes elements numbers validating visitor implementation
|
||||
//
|
||||
// Copyright (c) 2011-2015 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_RTREE_UTILITIES_ARE_COUNTS_OK_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_UTILITIES_ARE_COUNTS_OK_HPP
|
||||
|
||||
#include <boost/geometry/index/detail/rtree/node/node.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index { namespace detail { namespace rtree { namespace utilities {
|
||||
|
||||
namespace visitors {
|
||||
|
||||
template <typename Value, typename Options, typename Box, typename Allocators>
|
||||
class are_counts_ok
|
||||
: public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, true>::type
|
||||
{
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
public:
|
||||
inline are_counts_ok(parameters_type const& parameters)
|
||||
: result(true), m_current_level(0), m_parameters(parameters)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<internal_node>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
// root internal node shouldn't contain 0 elements
|
||||
if ( elements.empty()
|
||||
|| !check_count(elements) )
|
||||
{
|
||||
result = false;
|
||||
return;
|
||||
}
|
||||
|
||||
size_t current_level_backup = m_current_level;
|
||||
++m_current_level;
|
||||
|
||||
for ( typename elements_type::const_iterator it = elements.begin();
|
||||
it != elements.end() && result == true ;
|
||||
++it)
|
||||
{
|
||||
rtree::apply_visitor(*this, *it->second);
|
||||
}
|
||||
|
||||
m_current_level = current_level_backup;
|
||||
}
|
||||
|
||||
inline void operator()(leaf const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<leaf>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
// empty leaf in non-root node
|
||||
if ( ( m_current_level > 0 && elements.empty() )
|
||||
|| !check_count(elements) )
|
||||
{
|
||||
result = false;
|
||||
}
|
||||
}
|
||||
|
||||
bool result;
|
||||
|
||||
private:
|
||||
template <typename Elements>
|
||||
bool check_count(Elements const& elements)
|
||||
{
|
||||
// root may contain count < min but should never contain count > max
|
||||
return elements.size() <= m_parameters.get_max_elements()
|
||||
&& ( elements.size() >= m_parameters.get_min_elements()
|
||||
|| m_current_level == 0 );
|
||||
}
|
||||
|
||||
size_t m_current_level;
|
||||
parameters_type const& m_parameters;
|
||||
};
|
||||
|
||||
} // namespace visitors
|
||||
|
||||
template <typename Rtree> inline
|
||||
bool are_counts_ok(Rtree const& tree)
|
||||
{
|
||||
typedef utilities::view<Rtree> RTV;
|
||||
RTV rtv(tree);
|
||||
|
||||
visitors::are_counts_ok<
|
||||
typename RTV::value_type,
|
||||
typename RTV::options_type,
|
||||
typename RTV::box_type,
|
||||
typename RTV::allocators_type
|
||||
> v(tree.parameters());
|
||||
|
||||
rtv.apply_visitor(v);
|
||||
|
||||
return v.result;
|
||||
}
|
||||
|
||||
}}}}}} // namespace boost::geometry::index::detail::rtree::utilities
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_UTILITIES_ARE_COUNTS_OK_HPP
|
||||
+109
@@ -0,0 +1,109 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree levels validating visitor implementation
|
||||
//
|
||||
// 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_RTREE_UTILITIES_ARE_LEVELS_OK_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_UTILITIES_ARE_LEVELS_OK_HPP
|
||||
|
||||
#include <boost/geometry/index/detail/rtree/node/node.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index { namespace detail { namespace rtree { namespace utilities {
|
||||
|
||||
namespace visitors {
|
||||
|
||||
template <typename Value, typename Options, typename Box, typename Allocators>
|
||||
class are_levels_ok
|
||||
: public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, true>::type
|
||||
{
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
public:
|
||||
inline are_levels_ok()
|
||||
: result(true), m_leafs_level((std::numeric_limits<size_t>::max)()), m_current_level(0)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<internal_node>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
if (elements.empty())
|
||||
{
|
||||
result = false;
|
||||
return;
|
||||
}
|
||||
|
||||
size_t current_level_backup = m_current_level;
|
||||
++m_current_level;
|
||||
|
||||
for ( typename elements_type::const_iterator it = elements.begin();
|
||||
it != elements.end() ; ++it)
|
||||
{
|
||||
rtree::apply_visitor(*this, *it->second);
|
||||
|
||||
if ( result == false )
|
||||
return;
|
||||
}
|
||||
|
||||
m_current_level = current_level_backup;
|
||||
}
|
||||
|
||||
inline void operator()(leaf const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<leaf>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
// empty leaf in non-root node
|
||||
if (0 < m_current_level && elements.empty())
|
||||
{
|
||||
result = false;
|
||||
return;
|
||||
}
|
||||
|
||||
if ( m_leafs_level == (std::numeric_limits<size_t>::max)() )
|
||||
{
|
||||
m_leafs_level = m_current_level;
|
||||
}
|
||||
else if ( m_leafs_level != m_current_level )
|
||||
{
|
||||
result = false;
|
||||
}
|
||||
}
|
||||
|
||||
bool result;
|
||||
|
||||
private:
|
||||
size_t m_leafs_level;
|
||||
size_t m_current_level;
|
||||
};
|
||||
|
||||
} // namespace visitors
|
||||
|
||||
template <typename Rtree> inline
|
||||
bool are_levels_ok(Rtree const& tree)
|
||||
{
|
||||
typedef utilities::view<Rtree> RTV;
|
||||
RTV rtv(tree);
|
||||
|
||||
visitors::are_levels_ok<
|
||||
typename RTV::value_type,
|
||||
typename RTV::options_type,
|
||||
typename RTV::box_type,
|
||||
typename RTV::allocators_type
|
||||
> v;
|
||||
|
||||
rtv.apply_visitor(v);
|
||||
|
||||
return v.result;
|
||||
}
|
||||
|
||||
}}}}}} // namespace boost::geometry::index::detail::rtree::utilities
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_UTILITIES_ARE_LEVELS_OK_HPP
|
||||
+243
@@ -0,0 +1,243 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree OpenGL drawing visitor implementation
|
||||
//
|
||||
// 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_RTREE_UTILITIES_GL_DRAW_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_UTILITIES_GL_DRAW_HPP
|
||||
|
||||
#include <boost/mpl/assert.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index { namespace detail {
|
||||
|
||||
namespace utilities {
|
||||
|
||||
namespace dispatch {
|
||||
|
||||
template <typename Point, size_t Dimension>
|
||||
struct gl_draw_point
|
||||
{};
|
||||
|
||||
template <typename Point>
|
||||
struct gl_draw_point<Point, 2>
|
||||
{
|
||||
static inline void apply(Point const& p, typename coordinate_type<Point>::type z)
|
||||
{
|
||||
typename coordinate_type<Point>::type const& x = geometry::get<0>(p);
|
||||
typename coordinate_type<Point>::type const& y = geometry::get<1>(p);
|
||||
/*glBegin(GL_POINT);
|
||||
glVertex3f(x, y, z);
|
||||
glEnd();*/
|
||||
glBegin(GL_QUADS);
|
||||
glVertex3f(x+1, y, z);
|
||||
glVertex3f(x, y+1, z);
|
||||
glVertex3f(x-1, y, z);
|
||||
glVertex3f(x, y-1, z);
|
||||
glEnd();
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Box, size_t Dimension>
|
||||
struct gl_draw_box
|
||||
{};
|
||||
|
||||
template <typename Box>
|
||||
struct gl_draw_box<Box, 2>
|
||||
{
|
||||
static inline void apply(Box const& b, typename coordinate_type<Box>::type z)
|
||||
{
|
||||
glBegin(GL_LINE_LOOP);
|
||||
glVertex3f(geometry::get<min_corner, 0>(b), geometry::get<min_corner, 1>(b), z);
|
||||
glVertex3f(geometry::get<max_corner, 0>(b), geometry::get<min_corner, 1>(b), z);
|
||||
glVertex3f(geometry::get<max_corner, 0>(b), geometry::get<max_corner, 1>(b), z);
|
||||
glVertex3f(geometry::get<min_corner, 0>(b), geometry::get<max_corner, 1>(b), z);
|
||||
glEnd();
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Segment, size_t Dimension>
|
||||
struct gl_draw_segment
|
||||
{};
|
||||
|
||||
template <typename Segment>
|
||||
struct gl_draw_segment<Segment, 2>
|
||||
{
|
||||
static inline void apply(Segment const& s, typename coordinate_type<Segment>::type z)
|
||||
{
|
||||
glBegin(GL_LINES);
|
||||
glVertex3f(geometry::get<0, 0>(s), geometry::get<0, 1>(s), z);
|
||||
glVertex3f(geometry::get<1, 0>(s), geometry::get<1, 1>(s), z);
|
||||
glEnd();
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Indexable, typename Tag>
|
||||
struct gl_draw_indexable
|
||||
{
|
||||
BOOST_MPL_ASSERT_MSG((false), NOT_IMPLEMENTED_FOR_THIS_TAG, (Tag));
|
||||
};
|
||||
|
||||
template <typename Box>
|
||||
struct gl_draw_indexable<Box, box_tag>
|
||||
: gl_draw_box<Box, geometry::dimension<Box>::value>
|
||||
{};
|
||||
|
||||
template <typename Point>
|
||||
struct gl_draw_indexable<Point, point_tag>
|
||||
: gl_draw_point<Point, geometry::dimension<Point>::value>
|
||||
{};
|
||||
|
||||
template <typename Segment>
|
||||
struct gl_draw_indexable<Segment, segment_tag>
|
||||
: gl_draw_segment<Segment, geometry::dimension<Segment>::value>
|
||||
{};
|
||||
|
||||
} // namespace dispatch
|
||||
|
||||
template <typename Indexable> inline
|
||||
void gl_draw_indexable(Indexable const& i, typename coordinate_type<Indexable>::type z)
|
||||
{
|
||||
dispatch::gl_draw_indexable<
|
||||
Indexable,
|
||||
typename tag<Indexable>::type
|
||||
>::apply(i, z);
|
||||
}
|
||||
|
||||
} // namespace utilities
|
||||
|
||||
namespace rtree { namespace utilities {
|
||||
|
||||
namespace visitors {
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
struct gl_draw : public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, true>::type
|
||||
{
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
inline gl_draw(Translator const& t,
|
||||
size_t level_first = 0,
|
||||
size_t level_last = (std::numeric_limits<size_t>::max)(),
|
||||
typename coordinate_type<Box>::type z_coord_level_multiplier = 1
|
||||
)
|
||||
: tr(t)
|
||||
, level_f(level_first)
|
||||
, level_l(level_last)
|
||||
, z_mul(z_coord_level_multiplier)
|
||||
, level(0)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<internal_node>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
if ( level_f <= level )
|
||||
{
|
||||
size_t level_rel = level - level_f;
|
||||
|
||||
if ( level_rel == 0 )
|
||||
glColor3f(0.75f, 0.0f, 0.0f);
|
||||
else if ( level_rel == 1 )
|
||||
glColor3f(0.0f, 0.75f, 0.0f);
|
||||
else if ( level_rel == 2 )
|
||||
glColor3f(0.0f, 0.0f, 0.75f);
|
||||
else if ( level_rel == 3 )
|
||||
glColor3f(0.75f, 0.75f, 0.0f);
|
||||
else if ( level_rel == 4 )
|
||||
glColor3f(0.75f, 0.0f, 0.75f);
|
||||
else if ( level_rel == 5 )
|
||||
glColor3f(0.0f, 0.75f, 0.75f);
|
||||
else
|
||||
glColor3f(0.5f, 0.5f, 0.5f);
|
||||
|
||||
for (typename elements_type::const_iterator it = elements.begin();
|
||||
it != elements.end(); ++it)
|
||||
{
|
||||
detail::utilities::gl_draw_indexable(it->first, level_rel * z_mul);
|
||||
}
|
||||
}
|
||||
|
||||
size_t level_backup = level;
|
||||
++level;
|
||||
|
||||
if ( level < level_l )
|
||||
{
|
||||
for (typename elements_type::const_iterator it = elements.begin();
|
||||
it != elements.end(); ++it)
|
||||
{
|
||||
rtree::apply_visitor(*this, *it->second);
|
||||
}
|
||||
}
|
||||
|
||||
level = level_backup;
|
||||
}
|
||||
|
||||
inline void operator()(leaf const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<leaf>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
if ( level_f <= level )
|
||||
{
|
||||
size_t level_rel = level - level_f;
|
||||
|
||||
glColor3f(0.25f, 0.25f, 0.25f);
|
||||
|
||||
for (typename elements_type::const_iterator it = elements.begin();
|
||||
it != elements.end(); ++it)
|
||||
{
|
||||
detail::utilities::gl_draw_indexable(tr(*it), level_rel * z_mul);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Translator const& tr;
|
||||
size_t level_f;
|
||||
size_t level_l;
|
||||
typename coordinate_type<Box>::type z_mul;
|
||||
|
||||
size_t level;
|
||||
};
|
||||
|
||||
} // namespace visitors
|
||||
|
||||
template <typename Rtree> inline
|
||||
void gl_draw(Rtree const& tree,
|
||||
size_t level_first = 0,
|
||||
size_t level_last = (std::numeric_limits<size_t>::max)(),
|
||||
typename coordinate_type<
|
||||
typename Rtree::bounds_type
|
||||
>::type z_coord_level_multiplier = 1
|
||||
)
|
||||
{
|
||||
typedef utilities::view<Rtree> RTV;
|
||||
RTV rtv(tree);
|
||||
|
||||
if ( !tree.empty() )
|
||||
{
|
||||
glColor3f(0.75f, 0.75f, 0.75f);
|
||||
detail::utilities::gl_draw_indexable(tree.bounds(), 0);
|
||||
}
|
||||
|
||||
visitors::gl_draw<
|
||||
typename RTV::value_type,
|
||||
typename RTV::options_type,
|
||||
typename RTV::translator_type,
|
||||
typename RTV::box_type,
|
||||
typename RTV::allocators_type
|
||||
> gl_draw_v(rtv.translator(), level_first, level_last, z_coord_level_multiplier);
|
||||
|
||||
rtv.apply_visitor(gl_draw_v);
|
||||
}
|
||||
|
||||
}} // namespace rtree::utilities
|
||||
|
||||
}}}} // namespace boost::geometry::index::detail
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_UTILITIES_GL_DRAW_HPP
|
||||
+219
@@ -0,0 +1,219 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree ostreaming visitor implementation
|
||||
//
|
||||
// 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_RTREE_UTILITIES_PRINT_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_UTILITIES_PRINT_HPP
|
||||
|
||||
#include <iostream>
|
||||
|
||||
namespace boost { namespace geometry { namespace index { namespace detail {
|
||||
|
||||
namespace utilities {
|
||||
|
||||
namespace dispatch {
|
||||
|
||||
template <typename Point, size_t Dimension>
|
||||
struct print_point
|
||||
{
|
||||
BOOST_STATIC_ASSERT(0 < Dimension);
|
||||
|
||||
static inline void apply(std::ostream & os, Point const& p)
|
||||
{
|
||||
print_point<Point, Dimension - 1>::apply(os, p);
|
||||
|
||||
os << ", " << geometry::get<Dimension - 1>(p);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Point>
|
||||
struct print_point<Point, 1>
|
||||
{
|
||||
static inline void apply(std::ostream & os, Point const& p)
|
||||
{
|
||||
os << geometry::get<0>(p);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Box, size_t Corner, size_t Dimension>
|
||||
struct print_corner
|
||||
{
|
||||
BOOST_STATIC_ASSERT(0 < Dimension);
|
||||
|
||||
static inline void apply(std::ostream & os, Box const& b)
|
||||
{
|
||||
print_corner<Box, Corner, Dimension - 1>::apply(os, b);
|
||||
|
||||
os << ", " << geometry::get<Corner, Dimension - 1>(b);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Box, size_t Corner>
|
||||
struct print_corner<Box, Corner, 1>
|
||||
{
|
||||
static inline void apply(std::ostream & os, Box const& b)
|
||||
{
|
||||
os << geometry::get<Corner, 0>(b);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Indexable, typename Tag>
|
||||
struct print_indexable
|
||||
{
|
||||
BOOST_MPL_ASSERT_MSG((false), NOT_IMPLEMENTED_FOR_THIS_TAG, (Tag));
|
||||
};
|
||||
|
||||
template <typename Indexable>
|
||||
struct print_indexable<Indexable, box_tag>
|
||||
{
|
||||
static const size_t dimension = geometry::dimension<Indexable>::value;
|
||||
|
||||
static inline void apply(std::ostream &os, Indexable const& i)
|
||||
{
|
||||
os << '(';
|
||||
print_corner<Indexable, min_corner, dimension>::apply(os, i);
|
||||
os << ")x(";
|
||||
print_corner<Indexable, max_corner, dimension>::apply(os, i);
|
||||
os << ')';
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Indexable>
|
||||
struct print_indexable<Indexable, point_tag>
|
||||
{
|
||||
static const size_t dimension = geometry::dimension<Indexable>::value;
|
||||
|
||||
static inline void apply(std::ostream &os, Indexable const& i)
|
||||
{
|
||||
os << '(';
|
||||
print_point<Indexable, dimension>::apply(os, i);
|
||||
os << ')';
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Indexable>
|
||||
struct print_indexable<Indexable, segment_tag>
|
||||
{
|
||||
static const size_t dimension = geometry::dimension<Indexable>::value;
|
||||
|
||||
static inline void apply(std::ostream &os, Indexable const& i)
|
||||
{
|
||||
os << '(';
|
||||
print_corner<Indexable, 0, dimension>::apply(os, i);
|
||||
os << ")-(";
|
||||
print_corner<Indexable, 1, dimension>::apply(os, i);
|
||||
os << ')';
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace dispatch
|
||||
|
||||
template <typename Indexable> inline
|
||||
void print_indexable(std::ostream & os, Indexable const& i)
|
||||
{
|
||||
dispatch::print_indexable<
|
||||
Indexable,
|
||||
typename tag<Indexable>::type
|
||||
>::apply(os, i);
|
||||
}
|
||||
|
||||
} // namespace utilities
|
||||
|
||||
namespace rtree { namespace utilities {
|
||||
|
||||
namespace visitors {
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
struct print : public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, true>::type
|
||||
{
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
inline print(std::ostream & o, Translator const& t)
|
||||
: os(o), tr(t), level(0)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<internal_node>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
spaces(level) << "INTERNAL NODE - L:" << level << " Ch:" << elements.size() << " @:" << &n << '\n';
|
||||
|
||||
for (typename elements_type::const_iterator it = elements.begin();
|
||||
it != elements.end(); ++it)
|
||||
{
|
||||
spaces(level);
|
||||
detail::utilities::print_indexable(os, it->first);
|
||||
os << " ->" << it->second << '\n';
|
||||
}
|
||||
|
||||
size_t level_backup = level;
|
||||
++level;
|
||||
|
||||
for (typename elements_type::const_iterator it = elements.begin();
|
||||
it != elements.end(); ++it)
|
||||
{
|
||||
rtree::apply_visitor(*this, *it->second);
|
||||
}
|
||||
|
||||
level = level_backup;
|
||||
}
|
||||
|
||||
inline void operator()(leaf const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<leaf>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
spaces(level) << "LEAF - L:" << level << " V:" << elements.size() << " @:" << &n << '\n';
|
||||
for (typename elements_type::const_iterator it = elements.begin();
|
||||
it != elements.end(); ++it)
|
||||
{
|
||||
spaces(level);
|
||||
detail::utilities::print_indexable(os, tr(*it));
|
||||
os << '\n';
|
||||
}
|
||||
}
|
||||
|
||||
inline std::ostream & spaces(size_t level)
|
||||
{
|
||||
for ( size_t i = 0 ; i < 2 * level ; ++i )
|
||||
os << ' ';
|
||||
return os;
|
||||
}
|
||||
|
||||
std::ostream & os;
|
||||
Translator const& tr;
|
||||
|
||||
size_t level;
|
||||
};
|
||||
|
||||
} // namespace visitors
|
||||
|
||||
template <typename Rtree> inline
|
||||
void print(std::ostream & os, Rtree const& tree)
|
||||
{
|
||||
typedef utilities::view<Rtree> RTV;
|
||||
RTV rtv(tree);
|
||||
|
||||
visitors::print<
|
||||
typename RTV::value_type,
|
||||
typename RTV::options_type,
|
||||
typename RTV::translator_type,
|
||||
typename RTV::box_type,
|
||||
typename RTV::allocators_type
|
||||
> print_v(os, rtv.translator());
|
||||
rtv.apply_visitor(print_v);
|
||||
}
|
||||
|
||||
}} // namespace rtree::utilities
|
||||
|
||||
}}}} // namespace boost::geometry::index::detail
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_UTILITIES_PRINT_HPP
|
||||
+105
@@ -0,0 +1,105 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree visitor collecting basic statistics
|
||||
//
|
||||
// Copyright (c) 2011-2013 Adam Wulkiewicz, Lodz, Poland.
|
||||
// Copyright (c) 2013 Mateusz Loskot, London, UK.
|
||||
//
|
||||
// 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_RTREE_UTILITIES_STATISTICS_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_UTILITIES_STATISTICS_HPP
|
||||
|
||||
#include <algorithm>
|
||||
#include <boost/tuple/tuple.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index { namespace detail { namespace rtree { namespace utilities {
|
||||
|
||||
namespace visitors {
|
||||
|
||||
template <typename Value, typename Options, typename Box, typename Allocators>
|
||||
struct statistics : public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, true>::type
|
||||
{
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
inline statistics()
|
||||
: level(0)
|
||||
, levels(1) // count root
|
||||
, nodes(0)
|
||||
, leaves(0)
|
||||
, values(0)
|
||||
, values_min(0)
|
||||
, values_max(0)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<internal_node>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
++nodes; // count node
|
||||
|
||||
size_t const level_backup = level;
|
||||
++level;
|
||||
|
||||
levels += level++ > levels ? 1 : 0; // count level (root already counted)
|
||||
|
||||
for (typename elements_type::const_iterator it = elements.begin();
|
||||
it != elements.end(); ++it)
|
||||
{
|
||||
rtree::apply_visitor(*this, *it->second);
|
||||
}
|
||||
|
||||
level = level_backup;
|
||||
}
|
||||
|
||||
inline void operator()(leaf const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<leaf>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
++leaves; // count leaves
|
||||
|
||||
std::size_t const v = elements.size();
|
||||
// count values spread per node and total
|
||||
values_min = (std::min)(values_min == 0 ? v : values_min, v);
|
||||
values_max = (std::max)(values_max, v);
|
||||
values += v;
|
||||
}
|
||||
|
||||
std::size_t level;
|
||||
std::size_t levels;
|
||||
std::size_t nodes;
|
||||
std::size_t leaves;
|
||||
std::size_t values;
|
||||
std::size_t values_min;
|
||||
std::size_t values_max;
|
||||
};
|
||||
|
||||
} // namespace visitors
|
||||
|
||||
template <typename Rtree> inline
|
||||
boost::tuple<std::size_t, std::size_t, std::size_t, std::size_t, std::size_t, std::size_t>
|
||||
statistics(Rtree const& tree)
|
||||
{
|
||||
typedef utilities::view<Rtree> RTV;
|
||||
RTV rtv(tree);
|
||||
|
||||
visitors::statistics<
|
||||
typename RTV::value_type,
|
||||
typename RTV::options_type,
|
||||
typename RTV::box_type,
|
||||
typename RTV::allocators_type
|
||||
> stats_v;
|
||||
|
||||
rtv.apply_visitor(stats_v);
|
||||
|
||||
return boost::make_tuple(stats_v.levels, stats_v.nodes, stats_v.leaves, stats_v.values, stats_v.values_min, stats_v.values_max);
|
||||
}
|
||||
|
||||
}}}}}} // namespace boost::geometry::index::detail::rtree::utilities
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_UTILITIES_STATISTICS_HPP
|
||||
+61
@@ -0,0 +1,61 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// Rtree utilities view
|
||||
//
|
||||
// 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_RTREE_UTILITIES_VIEW_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_UTILITIES_VIEW_HPP
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree { namespace utilities {
|
||||
|
||||
template <typename Rtree>
|
||||
class view
|
||||
{
|
||||
public:
|
||||
typedef typename Rtree::size_type size_type;
|
||||
|
||||
typedef typename Rtree::translator_type translator_type;
|
||||
typedef typename Rtree::value_type value_type;
|
||||
typedef typename Rtree::options_type options_type;
|
||||
typedef typename Rtree::box_type box_type;
|
||||
typedef typename Rtree::allocators_type allocators_type;
|
||||
|
||||
view(Rtree const& rt) : m_rtree(rt) {}
|
||||
|
||||
template <typename Visitor>
|
||||
void apply_visitor(Visitor & vis) const
|
||||
{
|
||||
m_rtree.apply_visitor(vis);
|
||||
}
|
||||
|
||||
// This will most certainly be removed in the future
|
||||
translator_type translator() const
|
||||
{
|
||||
return m_rtree.translator();
|
||||
}
|
||||
|
||||
// This will probably be removed in the future
|
||||
size_type depth() const
|
||||
{
|
||||
return m_rtree.depth();
|
||||
}
|
||||
|
||||
private:
|
||||
view(view const&);
|
||||
view & operator=(view const&);
|
||||
|
||||
Rtree const& m_rtree;
|
||||
};
|
||||
|
||||
}}} // namespace detail::rtree::utilities
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_UTILITIES_VIEW_HPP
|
||||
+55
@@ -0,0 +1,55 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree node children box calculating visitor implementation
|
||||
//
|
||||
// Copyright (c) 2011-2015 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_RTREE_VISITORS_CHILDREN_BOX_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_CHILDREN_BOX_HPP
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree { namespace visitors {
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
class children_box
|
||||
: public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, true>::type
|
||||
{
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
public:
|
||||
inline children_box(Box & result, Translator const& tr)
|
||||
: m_result(result), m_tr(tr)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<internal_node>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
m_result = rtree::elements_box<Box>(elements.begin(), elements.end(), m_tr);
|
||||
}
|
||||
|
||||
inline void operator()(leaf const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<leaf>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
m_result = rtree::values_box<Box>(elements.begin(), elements.end(), m_tr);
|
||||
}
|
||||
|
||||
private:
|
||||
Box & m_result;
|
||||
Translator const& m_tr;
|
||||
};
|
||||
|
||||
}}} // namespace detail::rtree::visitors
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_CHILDREN_BOX_HPP
|
||||
+92
@@ -0,0 +1,92 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree deep copying visitor implementation
|
||||
//
|
||||
// Copyright (c) 2011-2015 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_RTREE_VISITORS_COPY_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_COPY_HPP
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree { namespace visitors {
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
class copy
|
||||
: public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, false>::type
|
||||
{
|
||||
public:
|
||||
typedef typename rtree::node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef rtree::subtree_destroyer<Value, Options, Translator, Box, Allocators> subtree_destroyer;
|
||||
typedef typename Allocators::node_pointer node_pointer;
|
||||
|
||||
explicit inline copy(Allocators & allocators)
|
||||
: result(0)
|
||||
, m_allocators(allocators)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node & n)
|
||||
{
|
||||
node_pointer raw_new_node = rtree::create_node<Allocators, internal_node>::apply(m_allocators); // MAY THROW, STRONG (N: alloc)
|
||||
subtree_destroyer new_node(raw_new_node, m_allocators);
|
||||
|
||||
typedef typename rtree::elements_type<internal_node>::type elements_type;
|
||||
elements_type & elements = rtree::elements(n);
|
||||
|
||||
elements_type & elements_dst = rtree::elements(rtree::get<internal_node>(*new_node));
|
||||
|
||||
for (typename elements_type::iterator it = elements.begin();
|
||||
it != elements.end(); ++it)
|
||||
{
|
||||
rtree::apply_visitor(*this, *it->second); // MAY THROW (V, E: alloc, copy, N: alloc)
|
||||
|
||||
// for exception safety
|
||||
subtree_destroyer auto_result(result, m_allocators);
|
||||
|
||||
elements_dst.push_back( rtree::make_ptr_pair(it->first, result) ); // MAY THROW, STRONG (E: alloc, copy)
|
||||
|
||||
auto_result.release();
|
||||
}
|
||||
|
||||
result = new_node.get();
|
||||
new_node.release();
|
||||
}
|
||||
|
||||
inline void operator()(leaf & l)
|
||||
{
|
||||
node_pointer raw_new_node = rtree::create_node<Allocators, leaf>::apply(m_allocators); // MAY THROW, STRONG (N: alloc)
|
||||
subtree_destroyer new_node(raw_new_node, m_allocators);
|
||||
|
||||
typedef typename rtree::elements_type<leaf>::type elements_type;
|
||||
elements_type & elements = rtree::elements(l);
|
||||
|
||||
elements_type & elements_dst = rtree::elements(rtree::get<leaf>(*new_node));
|
||||
|
||||
for (typename elements_type::iterator it = elements.begin();
|
||||
it != elements.end(); ++it)
|
||||
{
|
||||
elements_dst.push_back(*it); // MAY THROW, STRONG (V: alloc, copy)
|
||||
}
|
||||
|
||||
result = new_node.get();
|
||||
new_node.release();
|
||||
}
|
||||
|
||||
node_pointer result;
|
||||
|
||||
private:
|
||||
Allocators & m_allocators;
|
||||
};
|
||||
|
||||
}}} // namespace detail::rtree::visitors
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_COPY_HPP
|
||||
+107
@@ -0,0 +1,107 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree count visitor implementation
|
||||
//
|
||||
// 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_RTREE_VISITORS_COUNT_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_COUNT_HPP
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree { namespace visitors {
|
||||
|
||||
template <typename Indexable, typename Value>
|
||||
struct count_helper
|
||||
{
|
||||
template <typename Translator>
|
||||
static inline typename Translator::result_type indexable(Indexable const& i, Translator const&)
|
||||
{
|
||||
return i;
|
||||
}
|
||||
template <typename Translator>
|
||||
static inline bool equals(Indexable const& i, Value const& v, Translator const& tr)
|
||||
{
|
||||
return geometry::equals(i, tr(v));
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Value>
|
||||
struct count_helper<Value, Value>
|
||||
{
|
||||
template <typename Translator>
|
||||
static inline typename Translator::result_type indexable(Value const& v, Translator const& tr)
|
||||
{
|
||||
return tr(v);
|
||||
}
|
||||
template <typename Translator>
|
||||
static inline bool equals(Value const& v1, Value const& v2, Translator const& tr)
|
||||
{
|
||||
return tr.equals(v1, v2);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename ValueOrIndexable, typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
struct count
|
||||
: public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, true>::type
|
||||
{
|
||||
typedef typename rtree::node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef count_helper<ValueOrIndexable, Value> count_help;
|
||||
|
||||
inline count(ValueOrIndexable const& vori, Translator const& t)
|
||||
: value_or_indexable(vori), tr(t), found_count(0)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<internal_node>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
// traverse nodes meeting predicates
|
||||
for (typename elements_type::const_iterator it = elements.begin();
|
||||
it != elements.end(); ++it)
|
||||
{
|
||||
if ( geometry::covered_by(
|
||||
return_ref_or_bounds(
|
||||
count_help::indexable(value_or_indexable, tr)),
|
||||
it->first) )
|
||||
{
|
||||
rtree::apply_visitor(*this, *it->second);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
inline void operator()(leaf const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<leaf>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
// get all values meeting predicates
|
||||
for (typename elements_type::const_iterator it = elements.begin();
|
||||
it != elements.end(); ++it)
|
||||
{
|
||||
// if value meets predicates
|
||||
if ( count_help::equals(value_or_indexable, *it, tr) )
|
||||
{
|
||||
++found_count;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
ValueOrIndexable const& value_or_indexable;
|
||||
Translator const& tr;
|
||||
typename Allocators::size_type found_count;
|
||||
};
|
||||
|
||||
}}} // namespace detail::rtree::visitors
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_COUNT_HPP
|
||||
+71
@@ -0,0 +1,71 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree destroying visitor implementation
|
||||
//
|
||||
// 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_RTREE_VISITORS_DELETE_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_DELETE_HPP
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree { namespace visitors {
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
class destroy
|
||||
: public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, false>::type
|
||||
{
|
||||
public:
|
||||
typedef typename rtree::node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef typename Allocators::node_pointer node_pointer;
|
||||
|
||||
inline destroy(node_pointer root_node, Allocators & allocators)
|
||||
: m_current_node(root_node)
|
||||
, m_allocators(allocators)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node & n)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(&n == &rtree::get<internal_node>(*m_current_node), "invalid pointers");
|
||||
|
||||
node_pointer node_to_destroy = m_current_node;
|
||||
|
||||
typedef typename rtree::elements_type<internal_node>::type elements_type;
|
||||
elements_type & elements = rtree::elements(n);
|
||||
|
||||
for (typename elements_type::iterator it = elements.begin();
|
||||
it != elements.end(); ++it)
|
||||
{
|
||||
m_current_node = it->second;
|
||||
rtree::apply_visitor(*this, *m_current_node);
|
||||
it->second = 0;
|
||||
}
|
||||
|
||||
rtree::destroy_node<Allocators, internal_node>::apply(m_allocators, node_to_destroy);
|
||||
}
|
||||
|
||||
inline void operator()(leaf & l)
|
||||
{
|
||||
boost::ignore_unused(l);
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(&l == &rtree::get<leaf>(*m_current_node), "invalid pointers");
|
||||
|
||||
rtree::destroy_node<Allocators, leaf>::apply(m_allocators, m_current_node);
|
||||
}
|
||||
|
||||
private:
|
||||
node_pointer m_current_node;
|
||||
Allocators & m_allocators;
|
||||
};
|
||||
|
||||
}}} // namespace detail::rtree::visitors
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_DELETE_HPP
|
||||
+588
@@ -0,0 +1,588 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree distance (knn, path, etc. ) query visitor implementation
|
||||
//
|
||||
// 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_RTREE_VISITORS_DISTANCE_QUERY_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_DISTANCE_QUERY_HPP
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree { namespace visitors {
|
||||
|
||||
template <typename Value, typename Translator, typename DistanceType, typename OutIt>
|
||||
class distance_query_result
|
||||
{
|
||||
public:
|
||||
typedef DistanceType distance_type;
|
||||
|
||||
inline explicit distance_query_result(size_t k, OutIt out_it)
|
||||
: m_count(k), m_out_it(out_it)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(0 < m_count, "Number of neighbors should be greater than 0");
|
||||
|
||||
m_neighbors.reserve(m_count);
|
||||
}
|
||||
|
||||
inline void store(Value const& val, distance_type const& curr_comp_dist)
|
||||
{
|
||||
if ( m_neighbors.size() < m_count )
|
||||
{
|
||||
m_neighbors.push_back(std::make_pair(curr_comp_dist, val));
|
||||
|
||||
if ( m_neighbors.size() == m_count )
|
||||
std::make_heap(m_neighbors.begin(), m_neighbors.end(), neighbors_less);
|
||||
}
|
||||
else
|
||||
{
|
||||
if ( curr_comp_dist < m_neighbors.front().first )
|
||||
{
|
||||
std::pop_heap(m_neighbors.begin(), m_neighbors.end(), neighbors_less);
|
||||
m_neighbors.back().first = curr_comp_dist;
|
||||
m_neighbors.back().second = val;
|
||||
std::push_heap(m_neighbors.begin(), m_neighbors.end(), neighbors_less);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
inline bool has_enough_neighbors() const
|
||||
{
|
||||
return m_count <= m_neighbors.size();
|
||||
}
|
||||
|
||||
inline distance_type greatest_comparable_distance() const
|
||||
{
|
||||
// greatest distance is in the first neighbor only
|
||||
// if there is at least m_count values found
|
||||
// this is just for safety reasons since is_comparable_distance_valid() is checked earlier
|
||||
// TODO - may be replaced by ASSERT
|
||||
return m_neighbors.size() < m_count
|
||||
? (std::numeric_limits<distance_type>::max)()
|
||||
: m_neighbors.front().first;
|
||||
}
|
||||
|
||||
inline size_t finish()
|
||||
{
|
||||
typedef typename std::vector< std::pair<distance_type, Value> >::const_iterator neighbors_iterator;
|
||||
for ( neighbors_iterator it = m_neighbors.begin() ; it != m_neighbors.end() ; ++it, ++m_out_it )
|
||||
*m_out_it = it->second;
|
||||
|
||||
return m_neighbors.size();
|
||||
}
|
||||
|
||||
private:
|
||||
inline static bool neighbors_less(
|
||||
std::pair<distance_type, Value> const& p1,
|
||||
std::pair<distance_type, Value> const& p2)
|
||||
{
|
||||
return p1.first < p2.first;
|
||||
}
|
||||
|
||||
size_t m_count;
|
||||
OutIt m_out_it;
|
||||
|
||||
std::vector< std::pair<distance_type, Value> > m_neighbors;
|
||||
};
|
||||
|
||||
template <
|
||||
typename Value,
|
||||
typename Options,
|
||||
typename Translator,
|
||||
typename Box,
|
||||
typename Allocators,
|
||||
typename Predicates,
|
||||
unsigned DistancePredicateIndex,
|
||||
typename OutIter
|
||||
>
|
||||
class distance_query
|
||||
: public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, true>::type
|
||||
{
|
||||
public:
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
typedef typename rtree::node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef index::detail::predicates_element<DistancePredicateIndex, Predicates> nearest_predicate_access;
|
||||
typedef typename nearest_predicate_access::type nearest_predicate_type;
|
||||
typedef typename indexable_type<Translator>::type indexable_type;
|
||||
|
||||
typedef index::detail::calculate_distance<nearest_predicate_type, indexable_type, value_tag> calculate_value_distance;
|
||||
typedef index::detail::calculate_distance<nearest_predicate_type, Box, bounds_tag> calculate_node_distance;
|
||||
typedef typename calculate_value_distance::result_type value_distance_type;
|
||||
typedef typename calculate_node_distance::result_type node_distance_type;
|
||||
|
||||
static const unsigned predicates_len = index::detail::predicates_length<Predicates>::value;
|
||||
|
||||
inline distance_query(parameters_type const& parameters, Translator const& translator, Predicates const& pred, OutIter out_it)
|
||||
: m_parameters(parameters), m_translator(translator)
|
||||
, m_pred(pred)
|
||||
, m_result(nearest_predicate_access::get(m_pred).count, out_it)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<internal_node>::type elements_type;
|
||||
|
||||
// array of active nodes
|
||||
typedef typename index::detail::rtree::container_from_elements_type<
|
||||
elements_type,
|
||||
std::pair<node_distance_type, typename Allocators::node_pointer>
|
||||
>::type active_branch_list_type;
|
||||
|
||||
active_branch_list_type active_branch_list;
|
||||
active_branch_list.reserve(m_parameters.get_max_elements());
|
||||
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
// fill array of nodes meeting predicates
|
||||
for (typename elements_type::const_iterator it = elements.begin();
|
||||
it != elements.end(); ++it)
|
||||
{
|
||||
// if current node meets predicates
|
||||
// 0 - dummy value
|
||||
if ( index::detail::predicates_check<index::detail::bounds_tag, 0, predicates_len>(m_pred, 0, it->first) )
|
||||
{
|
||||
// calculate node's distance(s) for distance predicate
|
||||
node_distance_type node_distance;
|
||||
// if distance isn't ok - move to the next node
|
||||
if ( !calculate_node_distance::apply(predicate(), it->first, node_distance) )
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
// if current node is further than found neighbors - don't analyze it
|
||||
if ( m_result.has_enough_neighbors() &&
|
||||
is_node_prunable(m_result.greatest_comparable_distance(), node_distance) )
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
// add current node's data into the list
|
||||
active_branch_list.push_back( std::make_pair(node_distance, it->second) );
|
||||
}
|
||||
}
|
||||
|
||||
// if there aren't any nodes in ABL - return
|
||||
if ( active_branch_list.empty() )
|
||||
return;
|
||||
|
||||
// sort array
|
||||
std::sort(active_branch_list.begin(), active_branch_list.end(), abl_less);
|
||||
|
||||
// recursively visit nodes
|
||||
for ( typename active_branch_list_type::const_iterator it = active_branch_list.begin();
|
||||
it != active_branch_list.end() ; ++it )
|
||||
{
|
||||
// if current node is further than furthest neighbor, the rest of nodes also will be further
|
||||
if ( m_result.has_enough_neighbors() &&
|
||||
is_node_prunable(m_result.greatest_comparable_distance(), it->first) )
|
||||
break;
|
||||
|
||||
rtree::apply_visitor(*this, *(it->second));
|
||||
}
|
||||
|
||||
// ALTERNATIVE VERSION - use heap instead of sorted container
|
||||
// It seems to be faster for greater MaxElements and slower otherwise
|
||||
// CONSIDER: using one global container/heap for active branches
|
||||
// instead of a sorted container per level
|
||||
// This would also change the way how branches are traversed!
|
||||
// The same may be applied to the iterative version which btw suffers
|
||||
// from the copying of the whole containers on resize of the ABLs container
|
||||
|
||||
//// make a heap
|
||||
//std::make_heap(active_branch_list.begin(), active_branch_list.end(), abl_greater);
|
||||
|
||||
//// recursively visit nodes
|
||||
//while ( !active_branch_list.empty() )
|
||||
//{
|
||||
// //if current node is further than furthest neighbor, the rest of nodes also will be further
|
||||
// if ( m_result.has_enough_neighbors()
|
||||
// && is_node_prunable(m_result.greatest_comparable_distance(), active_branch_list.front().first) )
|
||||
// {
|
||||
// break;
|
||||
// }
|
||||
|
||||
// rtree::apply_visitor(*this, *(active_branch_list.front().second));
|
||||
|
||||
// std::pop_heap(active_branch_list.begin(), active_branch_list.end(), abl_greater);
|
||||
// active_branch_list.pop_back();
|
||||
//}
|
||||
}
|
||||
|
||||
inline void operator()(leaf const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<leaf>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
// search leaf for closest value meeting predicates
|
||||
for (typename elements_type::const_iterator it = elements.begin();
|
||||
it != elements.end(); ++it)
|
||||
{
|
||||
// if value meets predicates
|
||||
if ( index::detail::predicates_check<index::detail::value_tag, 0, predicates_len>(m_pred, *it, m_translator(*it)) )
|
||||
{
|
||||
// calculate values distance for distance predicate
|
||||
value_distance_type value_distance;
|
||||
// if distance is ok
|
||||
if ( calculate_value_distance::apply(predicate(), m_translator(*it), value_distance) )
|
||||
{
|
||||
// store value
|
||||
m_result.store(*it, value_distance);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
inline size_t finish()
|
||||
{
|
||||
return m_result.finish();
|
||||
}
|
||||
|
||||
private:
|
||||
static inline bool abl_less(
|
||||
std::pair<node_distance_type, typename Allocators::node_pointer> const& p1,
|
||||
std::pair<node_distance_type, typename Allocators::node_pointer> const& p2)
|
||||
{
|
||||
return p1.first < p2.first;
|
||||
}
|
||||
|
||||
//static inline bool abl_greater(
|
||||
// std::pair<node_distance_type, typename Allocators::node_pointer> const& p1,
|
||||
// std::pair<node_distance_type, typename Allocators::node_pointer> const& p2)
|
||||
//{
|
||||
// return p1.first > p2.first;
|
||||
//}
|
||||
|
||||
template <typename Distance>
|
||||
static inline bool is_node_prunable(Distance const& greatest_dist, node_distance_type const& d)
|
||||
{
|
||||
return greatest_dist <= d;
|
||||
}
|
||||
|
||||
nearest_predicate_type const& predicate() const
|
||||
{
|
||||
return nearest_predicate_access::get(m_pred);
|
||||
}
|
||||
|
||||
parameters_type const& m_parameters;
|
||||
Translator const& m_translator;
|
||||
|
||||
Predicates m_pred;
|
||||
distance_query_result<Value, Translator, value_distance_type, OutIter> m_result;
|
||||
};
|
||||
|
||||
template <
|
||||
typename Value,
|
||||
typename Options,
|
||||
typename Translator,
|
||||
typename Box,
|
||||
typename Allocators,
|
||||
typename Predicates,
|
||||
unsigned DistancePredicateIndex
|
||||
>
|
||||
class distance_query_incremental
|
||||
: public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, true>::type
|
||||
{
|
||||
public:
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
typedef typename rtree::node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef index::detail::predicates_element<DistancePredicateIndex, Predicates> nearest_predicate_access;
|
||||
typedef typename nearest_predicate_access::type nearest_predicate_type;
|
||||
typedef typename indexable_type<Translator>::type indexable_type;
|
||||
|
||||
typedef index::detail::calculate_distance<nearest_predicate_type, indexable_type, value_tag> calculate_value_distance;
|
||||
typedef index::detail::calculate_distance<nearest_predicate_type, Box, bounds_tag> calculate_node_distance;
|
||||
typedef typename calculate_value_distance::result_type value_distance_type;
|
||||
typedef typename calculate_node_distance::result_type node_distance_type;
|
||||
|
||||
typedef typename Allocators::size_type size_type;
|
||||
typedef typename Allocators::const_reference const_reference;
|
||||
typedef typename Allocators::node_pointer node_pointer;
|
||||
|
||||
static const unsigned predicates_len = index::detail::predicates_length<Predicates>::value;
|
||||
|
||||
typedef typename rtree::elements_type<internal_node>::type internal_elements;
|
||||
typedef typename internal_elements::const_iterator internal_iterator;
|
||||
typedef typename rtree::elements_type<leaf>::type leaf_elements;
|
||||
|
||||
typedef std::pair<node_distance_type, node_pointer> branch_data;
|
||||
typedef typename index::detail::rtree::container_from_elements_type<
|
||||
internal_elements, branch_data
|
||||
>::type active_branch_list_type;
|
||||
struct internal_stack_element
|
||||
{
|
||||
internal_stack_element() : current_branch(0) {}
|
||||
#ifdef BOOST_NO_CXX11_RVALUE_REFERENCES
|
||||
// Required in c++03 for containers using Boost.Move
|
||||
internal_stack_element & operator=(internal_stack_element const& o)
|
||||
{
|
||||
branches = o.branches;
|
||||
current_branch = o.current_branch;
|
||||
return *this;
|
||||
}
|
||||
#endif
|
||||
active_branch_list_type branches;
|
||||
typename active_branch_list_type::size_type current_branch;
|
||||
};
|
||||
typedef std::vector<internal_stack_element> internal_stack_type;
|
||||
|
||||
inline distance_query_incremental()
|
||||
: m_translator(NULL)
|
||||
// , m_pred()
|
||||
, current_neighbor((std::numeric_limits<size_type>::max)())
|
||||
// , next_closest_node_distance((std::numeric_limits<node_distance_type>::max)())
|
||||
{}
|
||||
|
||||
inline distance_query_incremental(Translator const& translator, Predicates const& pred)
|
||||
: m_translator(::boost::addressof(translator))
|
||||
, m_pred(pred)
|
||||
, current_neighbor((std::numeric_limits<size_type>::max)())
|
||||
|
||||
, next_closest_node_distance((std::numeric_limits<node_distance_type>::max)())
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(0 < max_count(), "k must be greather than 0");
|
||||
}
|
||||
|
||||
const_reference dereference() const
|
||||
{
|
||||
return *(neighbors[current_neighbor].second);
|
||||
}
|
||||
|
||||
void initialize(node_pointer root)
|
||||
{
|
||||
rtree::apply_visitor(*this, *root);
|
||||
increment();
|
||||
}
|
||||
|
||||
void increment()
|
||||
{
|
||||
for (;;)
|
||||
{
|
||||
size_type new_neighbor = current_neighbor == (std::numeric_limits<size_type>::max)() ? 0 : current_neighbor + 1;
|
||||
|
||||
if ( internal_stack.empty() )
|
||||
{
|
||||
if ( new_neighbor < neighbors.size() )
|
||||
current_neighbor = new_neighbor;
|
||||
else
|
||||
{
|
||||
current_neighbor = (std::numeric_limits<size_type>::max)();
|
||||
// clear() is used to disable the condition above
|
||||
neighbors.clear();
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
else
|
||||
{
|
||||
active_branch_list_type & branches = internal_stack.back().branches;
|
||||
typename active_branch_list_type::size_type & current_branch = internal_stack.back().current_branch;
|
||||
|
||||
if ( branches.size() <= current_branch )
|
||||
{
|
||||
internal_stack.pop_back();
|
||||
continue;
|
||||
}
|
||||
|
||||
// if there are no nodes which can have closer values, set new value
|
||||
if ( new_neighbor < neighbors.size() &&
|
||||
// here must be < because otherwise neighbours may be sorted in different order
|
||||
// if there is another value with equal distance
|
||||
neighbors[new_neighbor].first < next_closest_node_distance )
|
||||
{
|
||||
current_neighbor = new_neighbor;
|
||||
return;
|
||||
}
|
||||
|
||||
// if node is further than the furthest neighbour, following nodes also will be further
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(neighbors.size() <= max_count(), "unexpected neighbours count");
|
||||
if ( max_count() <= neighbors.size() &&
|
||||
is_node_prunable(neighbors.back().first, branches[current_branch].first) )
|
||||
{
|
||||
// stop traversing current level
|
||||
internal_stack.pop_back();
|
||||
continue;
|
||||
}
|
||||
else
|
||||
{
|
||||
// new level - must increment current_branch before traversing of another level (mem reallocation)
|
||||
++current_branch;
|
||||
rtree::apply_visitor(*this, *(branches[current_branch - 1].second));
|
||||
|
||||
next_closest_node_distance = calc_closest_node_distance(internal_stack.begin(), internal_stack.end());
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
bool is_end() const
|
||||
{
|
||||
return (std::numeric_limits<size_type>::max)() == current_neighbor;
|
||||
}
|
||||
|
||||
friend bool operator==(distance_query_incremental const& l, distance_query_incremental const& r)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(l.current_neighbor != r.current_neighbor ||
|
||||
(std::numeric_limits<size_type>::max)() == l.current_neighbor ||
|
||||
(std::numeric_limits<size_type>::max)() == r.current_neighbor ||
|
||||
l.neighbors[l.current_neighbor].second == r.neighbors[r.current_neighbor].second,
|
||||
"not corresponding iterators");
|
||||
return l.current_neighbor == r.current_neighbor;
|
||||
}
|
||||
|
||||
// Put node's elements into the list of active branches if those elements meets predicates
|
||||
// and distance predicates(currently not used)
|
||||
// and aren't further than found neighbours (if there is enough neighbours)
|
||||
inline void operator()(internal_node const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<internal_node>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
// add new element
|
||||
internal_stack.resize(internal_stack.size()+1);
|
||||
|
||||
// fill active branch list array of nodes meeting predicates
|
||||
for ( typename elements_type::const_iterator it = elements.begin() ; it != elements.end() ; ++it )
|
||||
{
|
||||
// if current node meets predicates
|
||||
// 0 - dummy value
|
||||
if ( index::detail::predicates_check<index::detail::bounds_tag, 0, predicates_len>(m_pred, 0, it->first) )
|
||||
{
|
||||
// calculate node's distance(s) for distance predicate
|
||||
node_distance_type node_distance;
|
||||
// if distance isn't ok - move to the next node
|
||||
if ( !calculate_node_distance::apply(predicate(), it->first, node_distance) )
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
// if current node is further than found neighbors - don't analyze it
|
||||
if ( max_count() <= neighbors.size() &&
|
||||
is_node_prunable(neighbors.back().first, node_distance) )
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
// add current node's data into the list
|
||||
internal_stack.back().branches.push_back( std::make_pair(node_distance, it->second) );
|
||||
}
|
||||
}
|
||||
|
||||
if ( internal_stack.back().branches.empty() )
|
||||
internal_stack.pop_back();
|
||||
else
|
||||
// sort array
|
||||
std::sort(internal_stack.back().branches.begin(), internal_stack.back().branches.end(), abl_less);
|
||||
}
|
||||
|
||||
// Put values into the list of neighbours if those values meets predicates
|
||||
// and distance predicates(currently not used)
|
||||
// and aren't further than already found neighbours (if there is enough neighbours)
|
||||
inline void operator()(leaf const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<leaf>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
// store distance to the furthest neighbour
|
||||
bool not_enough_neighbors = neighbors.size() < max_count();
|
||||
value_distance_type greatest_distance = !not_enough_neighbors ? neighbors.back().first : (std::numeric_limits<value_distance_type>::max)();
|
||||
|
||||
// search leaf for closest value meeting predicates
|
||||
for ( typename elements_type::const_iterator it = elements.begin() ; it != elements.end() ; ++it)
|
||||
{
|
||||
// if value meets predicates
|
||||
if ( index::detail::predicates_check<index::detail::value_tag, 0, predicates_len>(m_pred, *it, (*m_translator)(*it)) )
|
||||
{
|
||||
// calculate values distance for distance predicate
|
||||
value_distance_type value_distance;
|
||||
// if distance is ok
|
||||
if ( calculate_value_distance::apply(predicate(), (*m_translator)(*it), value_distance) )
|
||||
{
|
||||
// if there is not enough values or current value is closer than furthest neighbour
|
||||
if ( not_enough_neighbors || value_distance < greatest_distance )
|
||||
{
|
||||
neighbors.push_back(std::make_pair(value_distance, boost::addressof(*it)));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// sort array
|
||||
std::sort(neighbors.begin(), neighbors.end(), neighbors_less);
|
||||
// remove furthest values
|
||||
if ( max_count() < neighbors.size() )
|
||||
neighbors.resize(max_count());
|
||||
}
|
||||
|
||||
private:
|
||||
static inline bool abl_less(std::pair<node_distance_type, typename Allocators::node_pointer> const& p1,
|
||||
std::pair<node_distance_type, typename Allocators::node_pointer> const& p2)
|
||||
{
|
||||
return p1.first < p2.first;
|
||||
}
|
||||
|
||||
static inline bool neighbors_less(std::pair<value_distance_type, const Value *> const& p1,
|
||||
std::pair<value_distance_type, const Value *> const& p2)
|
||||
{
|
||||
return p1.first < p2.first;
|
||||
}
|
||||
|
||||
node_distance_type
|
||||
calc_closest_node_distance(typename internal_stack_type::const_iterator first,
|
||||
typename internal_stack_type::const_iterator last)
|
||||
{
|
||||
node_distance_type result = (std::numeric_limits<node_distance_type>::max)();
|
||||
for ( ; first != last ; ++first )
|
||||
{
|
||||
if ( first->branches.size() <= first->current_branch )
|
||||
continue;
|
||||
|
||||
node_distance_type curr_dist = first->branches[first->current_branch].first;
|
||||
if ( curr_dist < result )
|
||||
result = curr_dist;
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
template <typename Distance>
|
||||
static inline bool is_node_prunable(Distance const& greatest_dist, node_distance_type const& d)
|
||||
{
|
||||
return greatest_dist <= d;
|
||||
}
|
||||
|
||||
inline unsigned max_count() const
|
||||
{
|
||||
return nearest_predicate_access::get(m_pred).count;
|
||||
}
|
||||
|
||||
nearest_predicate_type const& predicate() const
|
||||
{
|
||||
return nearest_predicate_access::get(m_pred);
|
||||
}
|
||||
|
||||
const Translator * m_translator;
|
||||
|
||||
Predicates m_pred;
|
||||
|
||||
internal_stack_type internal_stack;
|
||||
std::vector< std::pair<value_distance_type, const Value *> > neighbors;
|
||||
size_type current_neighbor;
|
||||
node_distance_type next_closest_node_distance;
|
||||
};
|
||||
|
||||
}}} // namespace detail::rtree::visitors
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_DISTANCE_QUERY_HPP
|
||||
+573
@@ -0,0 +1,573 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree inserting visitor implementation
|
||||
//
|
||||
// Copyright (c) 2011-2015 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_RTREE_VISITORS_INSERT_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_INSERT_HPP
|
||||
|
||||
#include <boost/type_traits/is_same.hpp>
|
||||
|
||||
#include <boost/geometry/algorithms/detail/expand_by_epsilon.hpp>
|
||||
#include <boost/geometry/util/condition.hpp>
|
||||
|
||||
#include <boost/geometry/index/detail/algorithms/content.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree {
|
||||
|
||||
// Default choose_next_node
|
||||
template <typename Value, typename Options, typename Box, typename Allocators, typename ChooseNextNodeTag>
|
||||
class choose_next_node;
|
||||
|
||||
template <typename Value, typename Options, typename Box, typename Allocators>
|
||||
class choose_next_node<Value, Options, Box, Allocators, choose_by_content_diff_tag>
|
||||
{
|
||||
public:
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
typedef typename rtree::node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef typename rtree::elements_type<internal_node>::type children_type;
|
||||
|
||||
typedef typename index::detail::default_content_result<Box>::type content_type;
|
||||
|
||||
template <typename Indexable>
|
||||
static inline size_t apply(internal_node & n,
|
||||
Indexable const& indexable,
|
||||
parameters_type const& /*parameters*/,
|
||||
size_t /*node_relative_level*/)
|
||||
{
|
||||
children_type & children = rtree::elements(n);
|
||||
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(!children.empty(), "can't choose the next node if children are empty");
|
||||
|
||||
size_t children_count = children.size();
|
||||
|
||||
// choose index with smallest content change or smallest content
|
||||
size_t choosen_index = 0;
|
||||
content_type smallest_content_diff = (std::numeric_limits<content_type>::max)();
|
||||
content_type smallest_content = (std::numeric_limits<content_type>::max)();
|
||||
|
||||
// caculate areas and areas of all nodes' boxes
|
||||
for ( size_t i = 0 ; i < children_count ; ++i )
|
||||
{
|
||||
typedef typename children_type::value_type child_type;
|
||||
child_type const& ch_i = children[i];
|
||||
|
||||
// expanded child node's box
|
||||
Box box_exp(ch_i.first);
|
||||
geometry::expand(box_exp, indexable);
|
||||
|
||||
// areas difference
|
||||
content_type content = index::detail::content(box_exp);
|
||||
content_type content_diff = content - index::detail::content(ch_i.first);
|
||||
|
||||
// update the result
|
||||
if ( content_diff < smallest_content_diff ||
|
||||
( content_diff == smallest_content_diff && content < smallest_content ) )
|
||||
{
|
||||
smallest_content_diff = content_diff;
|
||||
smallest_content = content;
|
||||
choosen_index = i;
|
||||
}
|
||||
}
|
||||
|
||||
return choosen_index;
|
||||
}
|
||||
};
|
||||
|
||||
// ----------------------------------------------------------------------- //
|
||||
|
||||
// Not implemented here
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators, typename RedistributeTag>
|
||||
struct redistribute_elements
|
||||
{
|
||||
BOOST_MPL_ASSERT_MSG(
|
||||
(false),
|
||||
NOT_IMPLEMENTED_FOR_THIS_REDISTRIBUTE_TAG_TYPE,
|
||||
(redistribute_elements));
|
||||
};
|
||||
|
||||
// ----------------------------------------------------------------------- //
|
||||
|
||||
// Split algorithm
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators, typename SplitTag>
|
||||
class split
|
||||
{
|
||||
BOOST_MPL_ASSERT_MSG(
|
||||
(false),
|
||||
NOT_IMPLEMENTED_FOR_THIS_SPLIT_TAG_TYPE,
|
||||
(split));
|
||||
};
|
||||
|
||||
// Default split algorithm
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
class split<Value, Options, Translator, Box, Allocators, split_default_tag>
|
||||
{
|
||||
protected:
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
typedef typename rtree::node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef rtree::subtree_destroyer<Value, Options, Translator, Box, Allocators> subtree_destroyer;
|
||||
|
||||
public:
|
||||
typedef index::detail::varray<
|
||||
typename rtree::elements_type<internal_node>::type::value_type,
|
||||
1
|
||||
> nodes_container_type;
|
||||
|
||||
template <typename Node>
|
||||
static inline void apply(nodes_container_type & additional_nodes,
|
||||
Node & n,
|
||||
Box & n_box,
|
||||
parameters_type const& parameters,
|
||||
Translator const& translator,
|
||||
Allocators & allocators)
|
||||
{
|
||||
// TODO - consider creating nodes always with sufficient memory allocated
|
||||
|
||||
// create additional node, use auto destroyer for automatic destruction on exception
|
||||
subtree_destroyer second_node(rtree::create_node<Allocators, Node>::apply(allocators), allocators); // MAY THROW, STRONG (N: alloc)
|
||||
// create reference to the newly created node
|
||||
Node & n2 = rtree::get<Node>(*second_node);
|
||||
|
||||
// NOTE: thread-safety
|
||||
// After throwing an exception by redistribute_elements the original node may be not changed or
|
||||
// both nodes may be empty. In both cases the tree won't be valid r-tree.
|
||||
// The alternative is to create 2 (or more) additional nodes here and store backup info
|
||||
// in the original node, then, if exception was thrown, the node would always have more than max
|
||||
// elements.
|
||||
// The alternative is to use moving semantics in the implementations of redistribute_elements,
|
||||
// it will be possible to throw from boost::move() in the case of e.g. static size nodes.
|
||||
|
||||
// redistribute elements
|
||||
Box box2;
|
||||
redistribute_elements<
|
||||
Value,
|
||||
Options,
|
||||
Translator,
|
||||
Box,
|
||||
Allocators,
|
||||
typename Options::redistribute_tag
|
||||
>::apply(n, n2, n_box, box2, parameters, translator, allocators); // MAY THROW (V, E: alloc, copy, copy)
|
||||
|
||||
// check numbers of elements
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(parameters.get_min_elements() <= rtree::elements(n).size() &&
|
||||
rtree::elements(n).size() <= parameters.get_max_elements(),
|
||||
"unexpected number of elements");
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(parameters.get_min_elements() <= rtree::elements(n2).size() &&
|
||||
rtree::elements(n2).size() <= parameters.get_max_elements(),
|
||||
"unexpected number of elements");
|
||||
|
||||
// return the list of newly created nodes (this algorithm returns one)
|
||||
additional_nodes.push_back(rtree::make_ptr_pair(box2, second_node.get())); // MAY THROW, STRONG (alloc, copy)
|
||||
|
||||
// release the ptr
|
||||
second_node.release();
|
||||
}
|
||||
};
|
||||
|
||||
// ----------------------------------------------------------------------- //
|
||||
|
||||
namespace visitors { namespace detail {
|
||||
|
||||
template <typename InternalNode, typename InternalNodePtr, typename SizeType>
|
||||
struct insert_traverse_data
|
||||
{
|
||||
typedef typename rtree::elements_type<InternalNode>::type elements_type;
|
||||
typedef typename elements_type::value_type element_type;
|
||||
typedef typename elements_type::size_type elements_size_type;
|
||||
typedef SizeType size_type;
|
||||
|
||||
insert_traverse_data()
|
||||
: parent(0), current_child_index(0), current_level(0)
|
||||
{}
|
||||
|
||||
void move_to_next_level(InternalNodePtr new_parent,
|
||||
elements_size_type new_child_index)
|
||||
{
|
||||
parent = new_parent;
|
||||
current_child_index = new_child_index;
|
||||
++current_level;
|
||||
}
|
||||
|
||||
bool current_is_root() const
|
||||
{
|
||||
return 0 == parent;
|
||||
}
|
||||
|
||||
elements_type & parent_elements() const
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(parent, "null pointer");
|
||||
return rtree::elements(*parent);
|
||||
}
|
||||
|
||||
element_type & current_element() const
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(parent, "null pointer");
|
||||
return rtree::elements(*parent)[current_child_index];
|
||||
}
|
||||
|
||||
InternalNodePtr parent;
|
||||
elements_size_type current_child_index;
|
||||
size_type current_level;
|
||||
};
|
||||
|
||||
// Default insert visitor
|
||||
template <typename Element, typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
class insert
|
||||
: public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, false>::type
|
||||
{
|
||||
protected:
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
typedef typename rtree::node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef rtree::subtree_destroyer<Value, Options, Translator, Box, Allocators> subtree_destroyer;
|
||||
typedef typename Allocators::node_pointer node_pointer;
|
||||
typedef typename Allocators::size_type size_type;
|
||||
|
||||
//typedef typename Allocators::internal_node_pointer internal_node_pointer;
|
||||
typedef internal_node * internal_node_pointer;
|
||||
|
||||
inline insert(node_pointer & root,
|
||||
size_type & leafs_level,
|
||||
Element const& element,
|
||||
parameters_type const& parameters,
|
||||
Translator const& translator,
|
||||
Allocators & allocators,
|
||||
size_type relative_level = 0
|
||||
)
|
||||
: m_element(element)
|
||||
, m_parameters(parameters)
|
||||
, m_translator(translator)
|
||||
, m_relative_level(relative_level)
|
||||
, m_level(leafs_level - relative_level)
|
||||
, m_root_node(root)
|
||||
, m_leafs_level(leafs_level)
|
||||
, m_traverse_data()
|
||||
, m_allocators(allocators)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(m_relative_level <= leafs_level, "unexpected level value");
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(m_level <= m_leafs_level, "unexpected level value");
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(0 != m_root_node, "there is no root node");
|
||||
// TODO
|
||||
// assert - check if Box is correct
|
||||
|
||||
// When a value is inserted, during the tree traversal bounds of nodes
|
||||
// on a path from the root to a leaf must be expanded. So prepare
|
||||
// a bounding object at the beginning to not do it later for each node.
|
||||
// NOTE: This is actually only needed because conditionally the bounding
|
||||
// object may be expanded below. Otherwise the indexable could be
|
||||
// directly used instead
|
||||
index::detail::bounds(rtree::element_indexable(m_element, m_translator), m_element_bounds);
|
||||
|
||||
#ifdef BOOST_GEOMETRY_INDEX_EXPERIMENTAL_ENLARGE_BY_EPSILON
|
||||
// Enlarge it in case if it's not bounding geometry type.
|
||||
// It's because Points and Segments are compared WRT machine epsilon
|
||||
// This ensures that leafs bounds correspond to the stored elements
|
||||
if (BOOST_GEOMETRY_CONDITION((
|
||||
boost::is_same<Element, Value>::value
|
||||
&& ! index::detail::is_bounding_geometry
|
||||
<
|
||||
typename indexable_type<Translator>::type
|
||||
>::value )) )
|
||||
{
|
||||
geometry::detail::expand_by_epsilon(m_element_bounds);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
template <typename Visitor>
|
||||
inline void traverse(Visitor & visitor, internal_node & n)
|
||||
{
|
||||
// choose next node
|
||||
size_t choosen_node_index = rtree::choose_next_node<Value, Options, Box, Allocators, typename Options::choose_next_node_tag>::
|
||||
apply(n, rtree::element_indexable(m_element, m_translator), m_parameters, m_leafs_level - m_traverse_data.current_level);
|
||||
|
||||
// expand the node to contain value
|
||||
geometry::expand(
|
||||
rtree::elements(n)[choosen_node_index].first,
|
||||
m_element_bounds
|
||||
/*rtree::element_indexable(m_element, m_translator)*/);
|
||||
|
||||
// next traversing step
|
||||
traverse_apply_visitor(visitor, n, choosen_node_index); // MAY THROW (V, E: alloc, copy, N:alloc)
|
||||
}
|
||||
|
||||
// TODO: awulkiew - change post_traverse name to handle_overflow or overflow_treatment?
|
||||
|
||||
template <typename Node>
|
||||
inline void post_traverse(Node &n)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(m_traverse_data.current_is_root() ||
|
||||
&n == &rtree::get<Node>(*m_traverse_data.current_element().second),
|
||||
"if node isn't the root current_child_index should be valid");
|
||||
|
||||
// handle overflow
|
||||
if ( m_parameters.get_max_elements() < rtree::elements(n).size() )
|
||||
{
|
||||
// NOTE: If the exception is thrown current node may contain more than MAX elements or be empty.
|
||||
// Furthermore it may be empty root - internal node.
|
||||
split(n); // MAY THROW (V, E: alloc, copy, N:alloc)
|
||||
}
|
||||
}
|
||||
|
||||
template <typename Visitor>
|
||||
inline void traverse_apply_visitor(Visitor & visitor, internal_node &n, size_t choosen_node_index)
|
||||
{
|
||||
// save previous traverse inputs and set new ones
|
||||
insert_traverse_data<internal_node, internal_node_pointer, size_type>
|
||||
backup_traverse_data = m_traverse_data;
|
||||
|
||||
// calculate new traverse inputs
|
||||
m_traverse_data.move_to_next_level(&n, choosen_node_index);
|
||||
|
||||
// next traversing step
|
||||
rtree::apply_visitor(visitor, *rtree::elements(n)[choosen_node_index].second); // MAY THROW (V, E: alloc, copy, N:alloc)
|
||||
|
||||
// restore previous traverse inputs
|
||||
m_traverse_data = backup_traverse_data;
|
||||
}
|
||||
|
||||
// TODO: consider - split result returned as OutIter is faster than reference to the container. Why?
|
||||
|
||||
template <typename Node>
|
||||
inline void split(Node & n) const
|
||||
{
|
||||
typedef rtree::split<Value, Options, Translator, Box, Allocators, typename Options::split_tag> split_algo;
|
||||
|
||||
typename split_algo::nodes_container_type additional_nodes;
|
||||
Box n_box;
|
||||
|
||||
split_algo::apply(additional_nodes, n, n_box, m_parameters, m_translator, m_allocators); // MAY THROW (V, E: alloc, copy, N:alloc)
|
||||
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(additional_nodes.size() == 1, "unexpected number of additional nodes");
|
||||
|
||||
// TODO add all additional nodes
|
||||
// For kmeans algorithm:
|
||||
// elements number may be greater than node max elements count
|
||||
// split and reinsert must take node with some elements count
|
||||
// and container of additional elements (std::pair<Box, node*>s or Values)
|
||||
// and translator + allocators
|
||||
// where node_elements_count + additional_elements > node_max_elements_count
|
||||
// What with elements other than std::pair<Box, node*> ?
|
||||
// Implement template <node_tag> struct node_element_type or something like that
|
||||
|
||||
// for exception safety
|
||||
subtree_destroyer additional_node_ptr(additional_nodes[0].second, m_allocators);
|
||||
|
||||
#ifdef BOOST_GEOMETRY_INDEX_EXPERIMENTAL_ENLARGE_BY_EPSILON
|
||||
// Enlarge bounds of a leaf node.
|
||||
// It's because Points and Segments are compared WRT machine epsilon
|
||||
// This ensures that leafs' bounds correspond to the stored elements.
|
||||
if (BOOST_GEOMETRY_CONDITION((
|
||||
boost::is_same<Node, leaf>::value
|
||||
&& ! index::detail::is_bounding_geometry
|
||||
<
|
||||
typename indexable_type<Translator>::type
|
||||
>::value )))
|
||||
{
|
||||
geometry::detail::expand_by_epsilon(n_box);
|
||||
geometry::detail::expand_by_epsilon(additional_nodes[0].first);
|
||||
}
|
||||
#endif
|
||||
|
||||
// node is not the root - just add the new node
|
||||
if ( !m_traverse_data.current_is_root() )
|
||||
{
|
||||
// update old node's box
|
||||
m_traverse_data.current_element().first = n_box;
|
||||
// add new node to parent's children
|
||||
m_traverse_data.parent_elements().push_back(additional_nodes[0]); // MAY THROW, STRONG (V, E: alloc, copy)
|
||||
}
|
||||
// node is the root - add level
|
||||
else
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(&n == &rtree::get<Node>(*m_root_node), "node should be the root");
|
||||
|
||||
// create new root and add nodes
|
||||
subtree_destroyer new_root(rtree::create_node<Allocators, internal_node>::apply(m_allocators), m_allocators); // MAY THROW, STRONG (N:alloc)
|
||||
|
||||
BOOST_TRY
|
||||
{
|
||||
rtree::elements(rtree::get<internal_node>(*new_root)).push_back(rtree::make_ptr_pair(n_box, m_root_node)); // MAY THROW, STRONG (E:alloc, copy)
|
||||
rtree::elements(rtree::get<internal_node>(*new_root)).push_back(additional_nodes[0]); // MAY THROW, STRONG (E:alloc, copy)
|
||||
}
|
||||
BOOST_CATCH(...)
|
||||
{
|
||||
// clear new root to not delete in the ~subtree_destroyer() potentially stored old root node
|
||||
rtree::elements(rtree::get<internal_node>(*new_root)).clear();
|
||||
BOOST_RETHROW // RETHROW
|
||||
}
|
||||
BOOST_CATCH_END
|
||||
|
||||
m_root_node = new_root.get();
|
||||
++m_leafs_level;
|
||||
|
||||
new_root.release();
|
||||
}
|
||||
|
||||
additional_node_ptr.release();
|
||||
}
|
||||
|
||||
// TODO: awulkiew - implement dispatchable split::apply to enable additional nodes creation
|
||||
|
||||
Element const& m_element;
|
||||
Box m_element_bounds;
|
||||
parameters_type const& m_parameters;
|
||||
Translator const& m_translator;
|
||||
size_type const m_relative_level;
|
||||
size_type const m_level;
|
||||
|
||||
node_pointer & m_root_node;
|
||||
size_type & m_leafs_level;
|
||||
|
||||
// traversing input parameters
|
||||
insert_traverse_data<internal_node, internal_node_pointer, size_type> m_traverse_data;
|
||||
|
||||
Allocators & m_allocators;
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
// Insert visitor forward declaration
|
||||
template <typename Element, typename Value, typename Options, typename Translator, typename Box, typename Allocators, typename InsertTag>
|
||||
class insert;
|
||||
|
||||
// Default insert visitor used for nodes elements
|
||||
// After passing the Element to insert visitor the Element is managed by the tree
|
||||
// I.e. one should not delete the node passed to the insert visitor after exception is thrown
|
||||
// because this visitor may delete it
|
||||
template <typename Element, typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
class insert<Element, Value, Options, Translator, Box, Allocators, insert_default_tag>
|
||||
: public detail::insert<Element, Value, Options, Translator, Box, Allocators>
|
||||
{
|
||||
public:
|
||||
typedef detail::insert<Element, Value, Options, Translator, Box, Allocators> base;
|
||||
typedef typename base::node node;
|
||||
typedef typename base::internal_node internal_node;
|
||||
typedef typename base::leaf leaf;
|
||||
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
typedef typename base::node_pointer node_pointer;
|
||||
typedef typename base::size_type size_type;
|
||||
|
||||
inline insert(node_pointer & root,
|
||||
size_type & leafs_level,
|
||||
Element const& element,
|
||||
parameters_type const& parameters,
|
||||
Translator const& translator,
|
||||
Allocators & allocators,
|
||||
size_type relative_level = 0
|
||||
)
|
||||
: base(root, leafs_level, element, parameters, translator, allocators, relative_level)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node & n)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(base::m_traverse_data.current_level < base::m_leafs_level, "unexpected level");
|
||||
|
||||
if ( base::m_traverse_data.current_level < base::m_level )
|
||||
{
|
||||
// next traversing step
|
||||
base::traverse(*this, n); // MAY THROW (E: alloc, copy, N: alloc)
|
||||
}
|
||||
else
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(base::m_level == base::m_traverse_data.current_level, "unexpected level");
|
||||
|
||||
BOOST_TRY
|
||||
{
|
||||
// push new child node
|
||||
rtree::elements(n).push_back(base::m_element); // MAY THROW, STRONG (E: alloc, copy)
|
||||
}
|
||||
BOOST_CATCH(...)
|
||||
{
|
||||
// if the insert fails above, the element won't be stored in the tree
|
||||
|
||||
rtree::visitors::destroy<Value, Options, Translator, Box, Allocators> del_v(base::m_element.second, base::m_allocators);
|
||||
rtree::apply_visitor(del_v, *base::m_element.second);
|
||||
|
||||
BOOST_RETHROW // RETHROW
|
||||
}
|
||||
BOOST_CATCH_END
|
||||
}
|
||||
|
||||
base::post_traverse(n); // MAY THROW (E: alloc, copy, N: alloc)
|
||||
}
|
||||
|
||||
inline void operator()(leaf &)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(false, "this visitor can't be used for a leaf");
|
||||
}
|
||||
};
|
||||
|
||||
// Default insert visitor specialized for Values elements
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
class insert<Value, Value, Options, Translator, Box, Allocators, insert_default_tag>
|
||||
: public detail::insert<Value, Value, Options, Translator, Box, Allocators>
|
||||
{
|
||||
public:
|
||||
typedef detail::insert<Value, Value, Options, Translator, Box, Allocators> base;
|
||||
typedef typename base::node node;
|
||||
typedef typename base::internal_node internal_node;
|
||||
typedef typename base::leaf leaf;
|
||||
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
typedef typename base::node_pointer node_pointer;
|
||||
typedef typename base::size_type size_type;
|
||||
|
||||
inline insert(node_pointer & root,
|
||||
size_type & leafs_level,
|
||||
Value const& value,
|
||||
parameters_type const& parameters,
|
||||
Translator const& translator,
|
||||
Allocators & allocators,
|
||||
size_type relative_level = 0
|
||||
)
|
||||
: base(root, leafs_level, value, parameters, translator, allocators, relative_level)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node & n)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(base::m_traverse_data.current_level < base::m_leafs_level, "unexpected level");
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(base::m_traverse_data.current_level < base::m_level, "unexpected level");
|
||||
|
||||
// next traversing step
|
||||
base::traverse(*this, n); // MAY THROW (V, E: alloc, copy, N: alloc)
|
||||
|
||||
base::post_traverse(n); // MAY THROW (E: alloc, copy, N: alloc)
|
||||
}
|
||||
|
||||
inline void operator()(leaf & n)
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(base::m_traverse_data.current_level == base::m_leafs_level, "unexpected level");
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(base::m_level == base::m_traverse_data.current_level ||
|
||||
base::m_level == (std::numeric_limits<size_t>::max)(), "unexpected level");
|
||||
|
||||
rtree::elements(n).push_back(base::m_element); // MAY THROW, STRONG (V: alloc, copy)
|
||||
|
||||
base::post_traverse(n); // MAY THROW (V: alloc, copy, N: alloc)
|
||||
}
|
||||
};
|
||||
|
||||
}}} // namespace detail::rtree::visitors
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_INSERT_HPP
|
||||
+45
@@ -0,0 +1,45 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree leaf node checking visitor implementation
|
||||
//
|
||||
// Copyright (c) 2011-2015 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_RTREE_VISITORS_IS_LEAF_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_IS_LEAF_HPP
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree { namespace visitors {
|
||||
|
||||
template <typename Value, typename Options, typename Box, typename Allocators>
|
||||
struct is_leaf : public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, true>::type
|
||||
{
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
is_leaf()
|
||||
: result(false)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node const&)
|
||||
{
|
||||
// result = false;
|
||||
}
|
||||
|
||||
inline void operator()(leaf const&)
|
||||
{
|
||||
result = true;
|
||||
}
|
||||
|
||||
bool result;
|
||||
};
|
||||
|
||||
}}} // namespace detail::rtree::visitors
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_IS_LEAF_HPP
|
||||
+134
@@ -0,0 +1,134 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree iterator visitor implementation
|
||||
//
|
||||
// Copyright (c) 2011-2015 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_RTREE_VISITORS_ITERATOR_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_ITERATOR_HPP
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree { namespace visitors {
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
class iterator
|
||||
: public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, true>::type
|
||||
{
|
||||
public:
|
||||
typedef typename rtree::node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef typename Allocators::size_type size_type;
|
||||
typedef typename Allocators::const_reference const_reference;
|
||||
typedef typename Allocators::node_pointer node_pointer;
|
||||
|
||||
typedef typename rtree::elements_type<internal_node>::type::const_iterator internal_iterator;
|
||||
typedef typename rtree::elements_type<leaf>::type leaf_elements;
|
||||
typedef typename rtree::elements_type<leaf>::type::const_iterator leaf_iterator;
|
||||
|
||||
inline iterator()
|
||||
: m_values(NULL)
|
||||
, m_current()
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<internal_node>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
m_internal_stack.push_back(std::make_pair(elements.begin(), elements.end()));
|
||||
}
|
||||
|
||||
inline void operator()(leaf const& n)
|
||||
{
|
||||
m_values = ::boost::addressof(rtree::elements(n));
|
||||
m_current = rtree::elements(n).begin();
|
||||
}
|
||||
|
||||
const_reference dereference() const
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(m_values, "not dereferencable");
|
||||
return *m_current;
|
||||
}
|
||||
|
||||
void initialize(node_pointer root)
|
||||
{
|
||||
rtree::apply_visitor(*this, *root);
|
||||
search_value();
|
||||
}
|
||||
|
||||
void increment()
|
||||
{
|
||||
++m_current;
|
||||
search_value();
|
||||
}
|
||||
|
||||
void search_value()
|
||||
{
|
||||
for (;;)
|
||||
{
|
||||
// if leaf is choosen, move to the next value in leaf
|
||||
if ( m_values )
|
||||
{
|
||||
// there are more values in the current leaf
|
||||
if ( m_current != m_values->end() )
|
||||
{
|
||||
return;
|
||||
}
|
||||
// no more values, clear current leaf
|
||||
else
|
||||
{
|
||||
m_values = 0;
|
||||
}
|
||||
}
|
||||
// if leaf isn't choosen, move to the next leaf
|
||||
else
|
||||
{
|
||||
// return if there is no more nodes to traverse
|
||||
if ( m_internal_stack.empty() )
|
||||
return;
|
||||
|
||||
// no more children in current node, remove it from stack
|
||||
if ( m_internal_stack.back().first == m_internal_stack.back().second )
|
||||
{
|
||||
m_internal_stack.pop_back();
|
||||
continue;
|
||||
}
|
||||
|
||||
internal_iterator it = m_internal_stack.back().first;
|
||||
++m_internal_stack.back().first;
|
||||
|
||||
// push the next node to the stack
|
||||
rtree::apply_visitor(*this, *(it->second));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
bool is_end() const
|
||||
{
|
||||
return 0 == m_values;
|
||||
}
|
||||
|
||||
friend bool operator==(iterator const& l, iterator const& r)
|
||||
{
|
||||
return (l.m_values == r.m_values) && (0 == l.m_values || l.m_current == r.m_current );
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
std::vector< std::pair<internal_iterator, internal_iterator> > m_internal_stack;
|
||||
const leaf_elements * m_values;
|
||||
leaf_iterator m_current;
|
||||
};
|
||||
|
||||
}}} // namespace detail::rtree::visitors
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_ITERATOR_HPP
|
||||
+344
@@ -0,0 +1,344 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree removing visitor implementation
|
||||
//
|
||||
// Copyright (c) 2011-2015 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_RTREE_VISITORS_REMOVE_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_REMOVE_HPP
|
||||
|
||||
#include <boost/geometry/index/detail/rtree/visitors/is_leaf.hpp>
|
||||
|
||||
#include <boost/geometry/algorithms/covered_by.hpp>
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree { namespace visitors {
|
||||
|
||||
// Default remove algorithm
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
|
||||
class remove
|
||||
: public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, false>::type
|
||||
{
|
||||
typedef typename Options::parameters_type parameters_type;
|
||||
|
||||
typedef typename rtree::node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef rtree::subtree_destroyer<Value, Options, Translator, Box, Allocators> subtree_destroyer;
|
||||
typedef typename Allocators::node_pointer node_pointer;
|
||||
typedef typename Allocators::size_type size_type;
|
||||
|
||||
typedef typename rtree::elements_type<internal_node>::type::size_type internal_size_type;
|
||||
|
||||
//typedef typename Allocators::internal_node_pointer internal_node_pointer;
|
||||
typedef internal_node * internal_node_pointer;
|
||||
|
||||
public:
|
||||
inline remove(node_pointer & root,
|
||||
size_type & leafs_level,
|
||||
Value const& value,
|
||||
parameters_type const& parameters,
|
||||
Translator const& translator,
|
||||
Allocators & allocators)
|
||||
: m_value(value)
|
||||
, m_parameters(parameters)
|
||||
, m_translator(translator)
|
||||
, m_allocators(allocators)
|
||||
, m_root_node(root)
|
||||
, m_leafs_level(leafs_level)
|
||||
, m_is_value_removed(false)
|
||||
, m_parent(0)
|
||||
, m_current_child_index(0)
|
||||
, m_current_level(0)
|
||||
, m_is_underflow(false)
|
||||
{
|
||||
// TODO
|
||||
// assert - check if Value/Box is correct
|
||||
}
|
||||
|
||||
inline void operator()(internal_node & n)
|
||||
{
|
||||
typedef typename rtree::elements_type<internal_node>::type children_type;
|
||||
children_type & children = rtree::elements(n);
|
||||
|
||||
// traverse children which boxes intersects value's box
|
||||
internal_size_type child_node_index = 0;
|
||||
for ( ; child_node_index < children.size() ; ++child_node_index )
|
||||
{
|
||||
if ( geometry::covered_by(
|
||||
return_ref_or_bounds(m_translator(m_value)),
|
||||
children[child_node_index].first) )
|
||||
{
|
||||
// next traversing step
|
||||
traverse_apply_visitor(n, child_node_index); // MAY THROW
|
||||
|
||||
if ( m_is_value_removed )
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// value was found and removed
|
||||
if ( m_is_value_removed )
|
||||
{
|
||||
typedef typename rtree::elements_type<internal_node>::type elements_type;
|
||||
typedef typename elements_type::iterator element_iterator;
|
||||
elements_type & elements = rtree::elements(n);
|
||||
|
||||
// underflow occured - child node should be removed
|
||||
if ( m_is_underflow )
|
||||
{
|
||||
element_iterator underfl_el_it = elements.begin() + child_node_index;
|
||||
size_type relative_level = m_leafs_level - m_current_level;
|
||||
|
||||
// move node to the container - store node's relative level as well and return new underflow state
|
||||
// NOTE: if the min elements number is 1, then after an underflow
|
||||
// here the child elements count is 0, so it's not required to store this node,
|
||||
// it could just be destroyed
|
||||
m_is_underflow = store_underflowed_node(elements, underfl_el_it, relative_level); // MAY THROW (E: alloc, copy)
|
||||
}
|
||||
|
||||
// n is not root - adjust aabb
|
||||
if ( 0 != m_parent )
|
||||
{
|
||||
// underflow state should be ok here
|
||||
// note that there may be less than min_elems elements in root
|
||||
// so this condition should be checked only here
|
||||
BOOST_GEOMETRY_INDEX_ASSERT((elements.size() < m_parameters.get_min_elements()) == m_is_underflow, "unexpected state");
|
||||
|
||||
rtree::elements(*m_parent)[m_current_child_index].first
|
||||
= rtree::elements_box<Box>(elements.begin(), elements.end(), m_translator);
|
||||
}
|
||||
// n is root node
|
||||
else
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(&n == &rtree::get<internal_node>(*m_root_node), "node must be the root");
|
||||
|
||||
// reinsert elements from removed nodes (underflows)
|
||||
reinsert_removed_nodes_elements(); // MAY THROW (V, E: alloc, copy, N: alloc)
|
||||
|
||||
// shorten the tree
|
||||
// NOTE: if the min elements number is 1, then after underflow
|
||||
// here the number of elements may be equal to 0
|
||||
// this can occur only for the last removed element
|
||||
if ( rtree::elements(n).size() <= 1 )
|
||||
{
|
||||
node_pointer root_to_destroy = m_root_node;
|
||||
if ( rtree::elements(n).size() == 0 )
|
||||
m_root_node = 0;
|
||||
else
|
||||
m_root_node = rtree::elements(n)[0].second;
|
||||
--m_leafs_level;
|
||||
|
||||
rtree::destroy_node<Allocators, internal_node>::apply(m_allocators, root_to_destroy);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
inline void operator()(leaf & n)
|
||||
{
|
||||
typedef typename rtree::elements_type<leaf>::type elements_type;
|
||||
elements_type & elements = rtree::elements(n);
|
||||
|
||||
// find value and remove it
|
||||
for ( typename elements_type::iterator it = elements.begin() ; it != elements.end() ; ++it )
|
||||
{
|
||||
if ( m_translator.equals(*it, m_value) )
|
||||
{
|
||||
rtree::move_from_back(elements, it); // MAY THROW (V: copy)
|
||||
elements.pop_back();
|
||||
m_is_value_removed = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// if value was removed
|
||||
if ( m_is_value_removed )
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(0 < m_parameters.get_min_elements(), "min number of elements is too small");
|
||||
|
||||
// calc underflow
|
||||
m_is_underflow = elements.size() < m_parameters.get_min_elements();
|
||||
|
||||
// n is not root - adjust aabb
|
||||
if ( 0 != m_parent )
|
||||
{
|
||||
rtree::elements(*m_parent)[m_current_child_index].first
|
||||
= rtree::values_box<Box>(elements.begin(), elements.end(), m_translator);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
bool is_value_removed() const
|
||||
{
|
||||
return m_is_value_removed;
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
typedef std::vector< std::pair<size_type, node_pointer> > UnderflowNodes;
|
||||
|
||||
void traverse_apply_visitor(internal_node &n, internal_size_type choosen_node_index)
|
||||
{
|
||||
// save previous traverse inputs and set new ones
|
||||
internal_node_pointer parent_bckup = m_parent;
|
||||
internal_size_type current_child_index_bckup = m_current_child_index;
|
||||
size_type current_level_bckup = m_current_level;
|
||||
|
||||
m_parent = &n;
|
||||
m_current_child_index = choosen_node_index;
|
||||
++m_current_level;
|
||||
|
||||
// next traversing step
|
||||
rtree::apply_visitor(*this, *rtree::elements(n)[choosen_node_index].second); // MAY THROW (V, E: alloc, copy, N: alloc)
|
||||
|
||||
// restore previous traverse inputs
|
||||
m_parent = parent_bckup;
|
||||
m_current_child_index = current_child_index_bckup;
|
||||
m_current_level = current_level_bckup;
|
||||
}
|
||||
|
||||
bool store_underflowed_node(
|
||||
typename rtree::elements_type<internal_node>::type & elements,
|
||||
typename rtree::elements_type<internal_node>::type::iterator underfl_el_it,
|
||||
size_type relative_level)
|
||||
{
|
||||
// move node to the container - store node's relative level as well
|
||||
m_underflowed_nodes.push_back(std::make_pair(relative_level, underfl_el_it->second)); // MAY THROW (E: alloc, copy)
|
||||
|
||||
BOOST_TRY
|
||||
{
|
||||
// NOTE: those are elements of the internal node which means that copy/move shouldn't throw
|
||||
// Though it's safer in case if the pointer type could throw in copy ctor.
|
||||
// In the future this try-catch block could be removed.
|
||||
rtree::move_from_back(elements, underfl_el_it); // MAY THROW (E: copy)
|
||||
elements.pop_back();
|
||||
}
|
||||
BOOST_CATCH(...)
|
||||
{
|
||||
m_underflowed_nodes.pop_back();
|
||||
BOOST_RETHROW // RETHROW
|
||||
}
|
||||
BOOST_CATCH_END
|
||||
|
||||
// calc underflow
|
||||
return elements.size() < m_parameters.get_min_elements();
|
||||
}
|
||||
|
||||
static inline bool is_leaf(node const& n)
|
||||
{
|
||||
visitors::is_leaf<Value, Options, Box, Allocators> ilv;
|
||||
rtree::apply_visitor(ilv, n);
|
||||
return ilv.result;
|
||||
}
|
||||
|
||||
void reinsert_removed_nodes_elements()
|
||||
{
|
||||
typename UnderflowNodes::reverse_iterator it = m_underflowed_nodes.rbegin();
|
||||
|
||||
BOOST_TRY
|
||||
{
|
||||
// reinsert elements from removed nodes
|
||||
// begin with levels closer to the root
|
||||
for ( ; it != m_underflowed_nodes.rend() ; ++it )
|
||||
{
|
||||
// it->first is an index of a level of a node, not children
|
||||
// counted from the leafs level
|
||||
bool const node_is_leaf = it->first == 1;
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(node_is_leaf == is_leaf(*it->second), "unexpected condition");
|
||||
if ( node_is_leaf )
|
||||
{
|
||||
reinsert_node_elements(rtree::get<leaf>(*it->second), it->first); // MAY THROW (V, E: alloc, copy, N: alloc)
|
||||
|
||||
rtree::destroy_node<Allocators, leaf>::apply(m_allocators, it->second);
|
||||
}
|
||||
else
|
||||
{
|
||||
reinsert_node_elements(rtree::get<internal_node>(*it->second), it->first); // MAY THROW (V, E: alloc, copy, N: alloc)
|
||||
|
||||
rtree::destroy_node<Allocators, internal_node>::apply(m_allocators, it->second);
|
||||
}
|
||||
}
|
||||
|
||||
//m_underflowed_nodes.clear();
|
||||
}
|
||||
BOOST_CATCH(...)
|
||||
{
|
||||
// destroy current and remaining nodes
|
||||
for ( ; it != m_underflowed_nodes.rend() ; ++it )
|
||||
{
|
||||
subtree_destroyer dummy(it->second, m_allocators);
|
||||
}
|
||||
|
||||
//m_underflowed_nodes.clear();
|
||||
|
||||
BOOST_RETHROW // RETHROW
|
||||
}
|
||||
BOOST_CATCH_END
|
||||
}
|
||||
|
||||
template <typename Node>
|
||||
void reinsert_node_elements(Node &n, size_type node_relative_level)
|
||||
{
|
||||
typedef typename rtree::elements_type<Node>::type elements_type;
|
||||
elements_type & elements = rtree::elements(n);
|
||||
|
||||
typename elements_type::iterator it = elements.begin();
|
||||
BOOST_TRY
|
||||
{
|
||||
for ( ; it != elements.end() ; ++it )
|
||||
{
|
||||
visitors::insert<
|
||||
typename elements_type::value_type,
|
||||
Value, Options, Translator, Box, Allocators,
|
||||
typename Options::insert_tag
|
||||
> insert_v(
|
||||
m_root_node, m_leafs_level, *it,
|
||||
m_parameters, m_translator, m_allocators,
|
||||
node_relative_level - 1);
|
||||
|
||||
rtree::apply_visitor(insert_v, *m_root_node); // MAY THROW (V, E: alloc, copy, N: alloc)
|
||||
}
|
||||
}
|
||||
BOOST_CATCH(...)
|
||||
{
|
||||
++it;
|
||||
rtree::destroy_elements<Value, Options, Translator, Box, Allocators>
|
||||
::apply(it, elements.end(), m_allocators);
|
||||
elements.clear();
|
||||
BOOST_RETHROW // RETHROW
|
||||
}
|
||||
BOOST_CATCH_END
|
||||
}
|
||||
|
||||
Value const& m_value;
|
||||
parameters_type const& m_parameters;
|
||||
Translator const& m_translator;
|
||||
Allocators & m_allocators;
|
||||
|
||||
node_pointer & m_root_node;
|
||||
size_type & m_leafs_level;
|
||||
|
||||
bool m_is_value_removed;
|
||||
UnderflowNodes m_underflowed_nodes;
|
||||
|
||||
// traversing input parameters
|
||||
internal_node_pointer m_parent;
|
||||
internal_size_type m_current_child_index;
|
||||
size_type m_current_level;
|
||||
|
||||
// traversing output parameters
|
||||
bool m_is_underflow;
|
||||
};
|
||||
|
||||
}}} // namespace detail::rtree::visitors
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_REMOVE_HPP
|
||||
+214
@@ -0,0 +1,214 @@
|
||||
// Boost.Geometry Index
|
||||
//
|
||||
// R-tree spatial query visitor implementation
|
||||
//
|
||||
// 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_RTREE_VISITORS_SPATIAL_QUERY_HPP
|
||||
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_SPATIAL_QUERY_HPP
|
||||
|
||||
namespace boost { namespace geometry { namespace index {
|
||||
|
||||
namespace detail { namespace rtree { namespace visitors {
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators, typename Predicates, typename OutIter>
|
||||
struct spatial_query
|
||||
: public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, true>::type
|
||||
{
|
||||
typedef typename rtree::node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef typename Allocators::size_type size_type;
|
||||
|
||||
static const unsigned predicates_len = index::detail::predicates_length<Predicates>::value;
|
||||
|
||||
inline spatial_query(Translator const& t, Predicates const& p, OutIter out_it)
|
||||
: tr(t), pred(p), out_iter(out_it), found_count(0)
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<internal_node>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
// traverse nodes meeting predicates
|
||||
for (typename elements_type::const_iterator it = elements.begin();
|
||||
it != elements.end(); ++it)
|
||||
{
|
||||
// if node meets predicates
|
||||
// 0 - dummy value
|
||||
if ( index::detail::predicates_check<index::detail::bounds_tag, 0, predicates_len>(pred, 0, it->first) )
|
||||
rtree::apply_visitor(*this, *it->second);
|
||||
}
|
||||
}
|
||||
|
||||
inline void operator()(leaf const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<leaf>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
// get all values meeting predicates
|
||||
for (typename elements_type::const_iterator it = elements.begin();
|
||||
it != elements.end(); ++it)
|
||||
{
|
||||
// if value meets predicates
|
||||
if ( index::detail::predicates_check<index::detail::value_tag, 0, predicates_len>(pred, *it, tr(*it)) )
|
||||
{
|
||||
*out_iter = *it;
|
||||
++out_iter;
|
||||
|
||||
++found_count;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Translator const& tr;
|
||||
|
||||
Predicates pred;
|
||||
|
||||
OutIter out_iter;
|
||||
size_type found_count;
|
||||
};
|
||||
|
||||
template <typename Value, typename Options, typename Translator, typename Box, typename Allocators, typename Predicates>
|
||||
class spatial_query_incremental
|
||||
: public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, true>::type
|
||||
{
|
||||
public:
|
||||
typedef typename rtree::node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type node;
|
||||
typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
|
||||
typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
|
||||
|
||||
typedef typename Allocators::size_type size_type;
|
||||
typedef typename Allocators::const_reference const_reference;
|
||||
typedef typename Allocators::node_pointer node_pointer;
|
||||
|
||||
typedef typename rtree::elements_type<internal_node>::type::const_iterator internal_iterator;
|
||||
typedef typename rtree::elements_type<leaf>::type leaf_elements;
|
||||
typedef typename rtree::elements_type<leaf>::type::const_iterator leaf_iterator;
|
||||
|
||||
static const unsigned predicates_len = index::detail::predicates_length<Predicates>::value;
|
||||
|
||||
inline spatial_query_incremental()
|
||||
: m_translator(NULL)
|
||||
// , m_pred()
|
||||
, m_values(NULL)
|
||||
, m_current()
|
||||
{}
|
||||
|
||||
inline spatial_query_incremental(Translator const& t, Predicates const& p)
|
||||
: m_translator(::boost::addressof(t))
|
||||
, m_pred(p)
|
||||
, m_values(NULL)
|
||||
, m_current()
|
||||
{}
|
||||
|
||||
inline void operator()(internal_node const& n)
|
||||
{
|
||||
typedef typename rtree::elements_type<internal_node>::type elements_type;
|
||||
elements_type const& elements = rtree::elements(n);
|
||||
|
||||
m_internal_stack.push_back(std::make_pair(elements.begin(), elements.end()));
|
||||
}
|
||||
|
||||
inline void operator()(leaf const& n)
|
||||
{
|
||||
m_values = ::boost::addressof(rtree::elements(n));
|
||||
m_current = rtree::elements(n).begin();
|
||||
}
|
||||
|
||||
const_reference dereference() const
|
||||
{
|
||||
BOOST_GEOMETRY_INDEX_ASSERT(m_values, "not dereferencable");
|
||||
return *m_current;
|
||||
}
|
||||
|
||||
void initialize(node_pointer root)
|
||||
{
|
||||
rtree::apply_visitor(*this, *root);
|
||||
search_value();
|
||||
}
|
||||
|
||||
void increment()
|
||||
{
|
||||
++m_current;
|
||||
search_value();
|
||||
}
|
||||
|
||||
void search_value()
|
||||
{
|
||||
for (;;)
|
||||
{
|
||||
// if leaf is choosen, move to the next value in leaf
|
||||
if ( m_values )
|
||||
{
|
||||
if ( m_current != m_values->end() )
|
||||
{
|
||||
// return if next value is found
|
||||
Value const& v = *m_current;
|
||||
if ( index::detail::predicates_check<index::detail::value_tag, 0, predicates_len>(m_pred, v, (*m_translator)(v)) )
|
||||
return;
|
||||
|
||||
++m_current;
|
||||
}
|
||||
// no more values, clear current leaf
|
||||
else
|
||||
{
|
||||
m_values = 0;
|
||||
}
|
||||
}
|
||||
// if leaf isn't choosen, move to the next leaf
|
||||
else
|
||||
{
|
||||
// return if there is no more nodes to traverse
|
||||
if ( m_internal_stack.empty() )
|
||||
return;
|
||||
|
||||
// no more children in current node, remove it from stack
|
||||
if ( m_internal_stack.back().first == m_internal_stack.back().second )
|
||||
{
|
||||
m_internal_stack.pop_back();
|
||||
continue;
|
||||
}
|
||||
|
||||
internal_iterator it = m_internal_stack.back().first;
|
||||
++m_internal_stack.back().first;
|
||||
|
||||
// next node is found, push it to the stack
|
||||
if ( index::detail::predicates_check<index::detail::bounds_tag, 0, predicates_len>(m_pred, 0, it->first) )
|
||||
rtree::apply_visitor(*this, *(it->second));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
bool is_end() const
|
||||
{
|
||||
return 0 == m_values;
|
||||
}
|
||||
|
||||
friend bool operator==(spatial_query_incremental const& l, spatial_query_incremental const& r)
|
||||
{
|
||||
return (l.m_values == r.m_values) && (0 == l.m_values || l.m_current == r.m_current );
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
const Translator * m_translator;
|
||||
|
||||
Predicates m_pred;
|
||||
|
||||
std::vector< std::pair<internal_iterator, internal_iterator> > m_internal_stack;
|
||||
const leaf_elements * m_values;
|
||||
leaf_iterator m_current;
|
||||
};
|
||||
|
||||
}}} // namespace detail::rtree::visitors
|
||||
|
||||
}}} // namespace boost::geometry::index
|
||||
|
||||
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_SPATIAL_QUERY_HPP
|
||||
Reference in New Issue
Block a user