]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
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. | |
9 | // Modifications copyright (c) 2015, Oracle and/or its affiliates. | |
10 | ||
11 | // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle | |
12 | ||
13 | // Distributed under the Boost Software License, Version 1.0. | |
14 | // (See accompanying file LICENSE_1_0.txt or copy at | |
15 | // http://www.boost.org/LICENSE_1_0.txt) | |
16 | ||
17 | #ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_EXPAND_SEGMENT_HPP | |
18 | #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_EXPAND_SEGMENT_HPP | |
19 | ||
20 | #include <boost/mpl/assert.hpp> | |
21 | #include <boost/type_traits/is_same.hpp> | |
22 | ||
23 | #include <boost/geometry/core/coordinate_dimension.hpp> | |
24 | #include <boost/geometry/core/tags.hpp> | |
25 | ||
26 | #include <boost/geometry/algorithms/detail/envelope/box.hpp> | |
27 | #include <boost/geometry/algorithms/detail/envelope/range_of_boxes.hpp> | |
28 | #include <boost/geometry/algorithms/detail/envelope/segment.hpp> | |
29 | ||
30 | #include <boost/geometry/algorithms/detail/expand/indexed.hpp> | |
31 | ||
32 | #include <boost/geometry/algorithms/dispatch/expand.hpp> | |
33 | ||
34 | ||
35 | namespace boost { namespace geometry | |
36 | { | |
37 | ||
38 | #ifndef DOXYGEN_NO_DETAIL | |
39 | namespace detail { namespace expand | |
40 | { | |
41 | ||
42 | ||
43 | struct segment_on_sphere | |
44 | { | |
45 | template <typename Box, typename Segment> | |
46 | static inline void apply(Box& box, Segment const& segment) | |
47 | { | |
48 | Box mbrs[2]; | |
49 | ||
50 | // compute the envelope of the segment | |
51 | detail::envelope::envelope_segment_on_sphere | |
52 | < | |
53 | dimension<Segment>::value | |
54 | >::apply(segment, mbrs[0]); | |
55 | ||
56 | // normalize the box | |
57 | detail::envelope::envelope_box_on_spheroid::apply(box, mbrs[1]); | |
58 | ||
59 | // compute the envelope of the two boxes | |
60 | detail::envelope::envelope_range_of_boxes::apply(mbrs, box); | |
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 | template | |
74 | < | |
75 | typename Box, typename Segment, | |
76 | typename StrategyLess, typename StrategyGreater, | |
77 | typename CSTagOut, typename CSTag | |
78 | > | |
79 | struct expand | |
80 | < | |
81 | Box, Segment, | |
82 | StrategyLess, StrategyGreater, | |
83 | box_tag, segment_tag, | |
84 | CSTagOut, CSTag | |
85 | > : detail::expand::expand_indexed | |
86 | < | |
87 | 0, dimension<Segment>::value, StrategyLess, StrategyGreater | |
88 | > | |
89 | { | |
90 | BOOST_MPL_ASSERT_MSG((boost::is_same<CSTagOut, CSTag>::value), | |
91 | COORDINATE_SYSTEMS_MUST_BE_THE_SAME, | |
92 | (types<CSTagOut, CSTag>())); | |
93 | }; | |
94 | ||
95 | template | |
96 | < | |
97 | typename Box, typename Segment, | |
98 | typename StrategyLess, typename StrategyGreater | |
99 | > | |
100 | struct expand | |
101 | < | |
102 | Box, Segment, | |
103 | StrategyLess, StrategyGreater, | |
104 | box_tag, segment_tag, | |
105 | spherical_equatorial_tag, spherical_equatorial_tag | |
106 | > : detail::expand::segment_on_sphere | |
107 | {}; | |
108 | ||
109 | ||
110 | } // namespace dispatch | |
111 | #endif // DOXYGEN_NO_DISPATCH | |
112 | ||
113 | }} // namespace boost::geometry | |
114 | ||
115 | #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_EXPAND_SEGMENT_HPP |