ceph/src/boost/boost/geometry/algorithms/detail/expand/box.hpp

   1 // Boost.Geometry (aka GGL, Generic Geometry Library)
   2
   3 // Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands.
   4 // Copyright (c) 2008-2015 Bruno Lalande, Paris, France.
   5 // Copyright (c) 2009-2015 Mateusz Loskot, London, UK.
   6 // Copyright (c) 2014-2015 Samuel Debionne, Grenoble, France.
   7
   8 // This file was modified by Oracle on 2015, 2016, 2017.
   9 // Modifications copyright (c) 2015-2017, Oracle and/or its affiliates.
  10
  11 // Contributed and/or modified by Vissarion Fysikopoulos, on behalf of Oracle
  12 // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
  13 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
  14
  15 // Distributed under the Boost Software License, Version 1.0.
  16 // (See accompanying file LICENSE_1_0.txt or copy at
  17 // http://www.boost.org/LICENSE_1_0.txt)
  18
  19 #ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_EXPAND_BOX_HPP
  20 #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_EXPAND_BOX_HPP
  21
  22 #include <cstddef>
  23 #include <algorithm>
  24
  25 #include <boost/mpl/assert.hpp>
  26 #include <boost/type_traits/is_same.hpp>
  27
  28 #include <boost/geometry/core/coordinate_dimension.hpp>
  29 #include <boost/geometry/core/tags.hpp>
  30
  31 #include <boost/geometry/algorithms/detail/envelope/box.hpp>
  32 #include <boost/geometry/algorithms/detail/envelope/range_of_boxes.hpp>
  33
  34 #include <boost/geometry/algorithms/detail/expand/indexed.hpp>
  35
  36 #include <boost/geometry/algorithms/dispatch/expand.hpp>
  37
  38
  39 namespace boost { namespace geometry
  40 {
  41
  42 #ifndef DOXYGEN_NO_DETAIL
  43 namespace detail { namespace expand
  44 {
  45
  46
  47 struct box_on_spheroid
  48 {
  49     template <typename BoxOut, typename BoxIn, typename Strategy>
  50     static inline void apply(BoxOut& box_out,
  51                              BoxIn const& box_in,
  52                              Strategy const& strategy)
  53     {
  54         // normalize both boxes and convert box-in to be of type of box-out
  55         BoxOut mbrs[2];
  56         detail::envelope::envelope_box_on_spheroid::apply(box_in, mbrs[0], strategy);
  57         detail::envelope::envelope_box_on_spheroid::apply(box_out, mbrs[1], strategy);
  58
  59         // compute the envelope of the two boxes
  60         detail::envelope::envelope_range_of_boxes::apply(mbrs, box_out, strategy);
  61     }
  62 };
  63
  64
  65 }} // namespace detail::expand
  66 #endif // DOXYGEN_NO_DETAIL
  67
  68 #ifndef DOXYGEN_NO_DISPATCH
  69 namespace dispatch
  70 {
  71
  72
  73 // Box + box -> new box containing two input boxes
  74 template
  75 <
  76     typename BoxOut, typename BoxIn,
  77     typename CSTagOut, typename CSTag
  78 >
  79 struct expand
  80     <
  81         BoxOut, BoxIn,
  82         box_tag, box_tag,
  83         CSTagOut, CSTag
  84     >
  85 {
  86     BOOST_MPL_ASSERT_MSG((false),
  87                          NOT_IMPLEMENTED_FOR_THESE_COORDINATE_SYSTEMS,
  88                          (types<CSTagOut, CSTag>()));
  89 };
  90
  91 template <typename BoxOut, typename BoxIn>
  92 struct expand
  93     <
  94         BoxOut, BoxIn,
  95         box_tag, box_tag,
  96         cartesian_tag, cartesian_tag
  97     > : detail::expand::expand_indexed
  98         <
  99             0, dimension<BoxIn>::value
 100         >
 101 {};
 102
 103 template <typename BoxOut, typename BoxIn>
 104 struct expand
 105     <
 106         BoxOut, BoxIn,
 107         box_tag, box_tag,
 108         spherical_equatorial_tag, spherical_equatorial_tag
 109     > : detail::expand::box_on_spheroid
 110 {};
 111
 112 template <typename BoxOut, typename BoxIn>
 113 struct expand
 114     <
 115         BoxOut, BoxIn,
 116         box_tag, box_tag,
 117         spherical_polar_tag, spherical_polar_tag
 118     > : detail::expand::box_on_spheroid
 119 {};
 120
 121 template <typename BoxOut, typename BoxIn>
 122 struct expand
 123     <
 124         BoxOut, BoxIn,
 125         box_tag, box_tag,
 126         geographic_tag, geographic_tag
 127     > : detail::expand::box_on_spheroid
 128 {};
 129
 130
 131 } // namespace dispatch
 132 #endif // DOXYGEN_NO_DISPATCH
 133
 134 }} // namespace boost::geometry
 135
 136 #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_EXPAND_INDEXED_HPP