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1 | // Boost.Geometry (aka GGL, Generic Geometry Library) |
2 | ||
3 | // Copyright (c) 2008-2012 Bruno Lalande, Paris, France. | |
4 | // Copyright (c) 2008-2012 Barend Gehrels, Amsterdam, the Netherlands. | |
5 | // Copyright (c) 2009-2012 Mateusz Loskot, London, UK. | |
6 | ||
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7 | // This file was modified by Oracle on 2020. |
8 | // Modifications copyright (c) 2020, Oracle and/or its affiliates. | |
9 | // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle | |
10 | ||
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11 | // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library |
12 | // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. | |
13 | ||
14 | // Use, modification and distribution is subject to the Boost Software License, | |
15 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
16 | // http://www.boost.org/LICENSE_1_0.txt) | |
17 | ||
18 | #ifndef BOOST_GEOMETRY_CORE_COORDINATE_SYSTEM_HPP | |
19 | #define BOOST_GEOMETRY_CORE_COORDINATE_SYSTEM_HPP | |
20 | ||
21 | ||
7c673cae | 22 | #include <boost/geometry/core/point_type.hpp> |
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23 | #include <boost/geometry/core/static_assert.hpp> |
24 | #include <boost/geometry/util/type_traits_std.hpp> | |
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25 | |
26 | ||
27 | namespace boost { namespace geometry | |
28 | { | |
29 | ||
30 | ||
31 | namespace traits | |
32 | { | |
33 | ||
34 | /*! | |
35 | \brief Traits class defining the coordinate system of a point, important for strategy selection | |
36 | \ingroup traits | |
37 | \par Geometries: | |
38 | - point | |
39 | \par Specializations should provide: | |
40 | - typedef CS type; (cs::cartesian, cs::spherical, etc) | |
41 | */ | |
42 | template <typename Point, typename Enable = void> | |
43 | struct coordinate_system | |
44 | { | |
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45 | BOOST_GEOMETRY_STATIC_ASSERT_FALSE( |
46 | "Not implemented for this Point type.", | |
47 | Point); | |
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48 | }; |
49 | ||
50 | } // namespace traits | |
51 | ||
52 | ||
53 | ||
54 | #ifndef DOXYGEN_NO_DISPATCH | |
55 | namespace core_dispatch | |
56 | { | |
57 | template <typename GeometryTag, typename G> | |
58 | struct coordinate_system | |
59 | { | |
60 | typedef typename point_type<GeometryTag, G>::type P; | |
61 | ||
62 | // Call its own specialization on point-tag | |
63 | typedef typename coordinate_system<point_tag, P>::type type; | |
64 | }; | |
65 | ||
66 | ||
67 | template <typename Point> | |
68 | struct coordinate_system<point_tag, Point> | |
69 | { | |
70 | typedef typename traits::coordinate_system | |
71 | < | |
20effc67 | 72 | typename util::remove_cptrref<Point>::type |
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73 | >::type type; |
74 | }; | |
75 | ||
76 | ||
77 | } // namespace core_dispatch | |
78 | #endif | |
79 | ||
80 | ||
81 | /*! | |
82 | \brief \brief_meta{type, coordinate system (cartesian\, spherical\, etc), \meta_point_type} | |
83 | \tparam Geometry \tparam_geometry | |
84 | \ingroup core | |
85 | ||
86 | \qbk{[include reference/core/coordinate_system.qbk]} | |
87 | */ | |
88 | template <typename Geometry> | |
89 | struct coordinate_system | |
90 | { | |
91 | typedef typename core_dispatch::coordinate_system | |
92 | < | |
93 | typename tag<Geometry>::type, | |
20effc67 | 94 | typename util::remove_cptrref<Geometry>::type |
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95 | >::type type; |
96 | }; | |
97 | ||
98 | ||
99 | }} // namespace boost::geometry | |
100 | ||
101 | ||
102 | #endif // BOOST_GEOMETRY_CORE_COORDINATE_SYSTEM_HPP |