ceph/src/boost/boost/geometry/index/detail/rtree/visitors/children_box.hpp

   1 // Boost.Geometry Index
   2 //
   3 // R-tree node children box calculating visitor implementation
   4 //
   5 // Copyright (c) 2011-2015 Adam Wulkiewicz, Lodz, Poland.
   6 //
   7 // This file was modified by Oracle on 2019.
   8 // Modifications copyright (c) 2019 Oracle and/or its affiliates.
   9 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
  10 //
  11 // Use, modification and distribution is subject to the Boost Software License,
  12 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  13 // http://www.boost.org/LICENSE_1_0.txt)
  14
  15 #ifndef BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_CHILDREN_BOX_HPP
  16 #define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_CHILDREN_BOX_HPP
  17
  18 namespace boost { namespace geometry { namespace index {
  19
  20 namespace detail { namespace rtree { namespace visitors {
  21
  22 template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
  23 class children_box
  24     : public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, true>::type
  25 {
  26     typedef typename Options::parameters_type parameters_type;
  27
  28     typedef typename rtree::internal_node<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
  29     typedef typename rtree::leaf<Value, parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
  30
  31 public:
  32     inline children_box(Box & result, parameters_type const& parameters, Translator const& tr)
  33         : m_result(result), m_parameters(parameters), m_tr(tr)
  34     {}
  35
  36     inline void operator()(internal_node const& n)
  37     {
  38         typedef typename rtree::elements_type<internal_node>::type elements_type;
  39         elements_type const& elements = rtree::elements(n);
  40
  41         m_result = rtree::elements_box<Box>(elements.begin(), elements.end(), m_tr,
  42                                             index::detail::get_strategy(m_parameters));
  43     }
  44
  45     inline void operator()(leaf const& n)
  46     {
  47         typedef typename rtree::elements_type<leaf>::type elements_type;
  48         elements_type const& elements = rtree::elements(n);
  49
  50         m_result = rtree::values_box<Box>(elements.begin(), elements.end(), m_tr,
  51                                           index::detail::get_strategy(m_parameters));
  52     }
  53
  54 private:
  55     Box & m_result;
  56     parameters_type const& m_parameters;
  57     Translator const& m_tr;
  58 };
  59
  60 }}} // namespace detail::rtree::visitors
  61
  62 }}} // namespace boost::geometry::index
  63
  64 #endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_CHILDREN_BOX_HPP