ceph/src/boost/boost/geometry/strategy/spherical/envelope_boxes.hpp

   1 // Boost.Geometry
   2
   3 // Copyright (c) 2021, Oracle and/or its affiliates.
   4
   5 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
   6
   7 // Licensed under the Boost Software License version 1.0.
   8 // http://www.boost.org/users/license.html
   9
  10 #ifndef BOOST_GEOMETRY_STRATEGY_SPHERICAL_ENVELOPE_BOXES_HPP
  11 #define BOOST_GEOMETRY_STRATEGY_SPHERICAL_ENVELOPE_BOXES_HPP
  12
  13 #include <vector>
  14
  15 #include <boost/geometry/algorithms/detail/envelope/initialize.hpp>
  16 #include <boost/geometry/algorithms/detail/envelope/range_of_boxes.hpp>
  17
  18 namespace boost { namespace geometry
  19 {
  20
  21 namespace strategy { namespace envelope
  22 {
  23
  24 class spherical_boxes
  25 {
  26 public:
  27     template <typename Box>
  28     class state
  29     {
  30         friend spherical_boxes;
  31
  32         std::vector<Box> m_boxes;
  33     };
  34
  35     template <typename Box>
  36     static void apply(state<Box> & st, Box const& box)
  37     {
  38         st.m_boxes.push_back(box);
  39     }
  40
  41     template <typename Box>
  42     static void result(state<Box> const& st, Box & box)
  43     {
  44         if (! st.m_boxes.empty())
  45         {
  46             geometry::detail::envelope::envelope_range_of_boxes::apply(st.m_boxes, box);
  47         }
  48         else
  49         {
  50             geometry::detail::envelope::initialize<Box, 0, dimension<Box>::value>::apply(box);
  51         }
  52     }
  53 };
  54
  55 }} // namespace strategy::envelope
  56
  57 }} //namepsace boost::geometry
  58
  59 #endif // BOOST_GEOMETRY_STRATEGY_SPHERICAL_ENVELOPE_BOXES_HPP