| 1 | // Boost.Geometry (aka GGL, Generic Geometry Library) |
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| 2 | |
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| 3 | // Copyright (c) 2008-2012 Bruno Lalande, Paris, France. |
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| 4 | // Copyright (c) 2008-2012 Barend Gehrels, Amsterdam, the Netherlands. |
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| 5 | // Copyright (c) 2009-2012 Mateusz Loskot, London, UK. |
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| 6 | |
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| 7 | // This file was modified by Oracle on 2020. |
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| 8 | // Modifications copyright (c) 2020, Oracle and/or its affiliates. |
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| 9 | // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle |
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| 10 | |
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| 11 | // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library |
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| 12 | // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. |
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| 13 | |
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| 14 | // Use, modification and distribution is subject to the Boost Software License, |
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| 15 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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| 16 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 17 | |
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| 18 | #ifndef BOOST_GEOMETRY_CORE_COORDINATE_SYSTEM_HPP |
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| 19 | #define BOOST_GEOMETRY_CORE_COORDINATE_SYSTEM_HPP |
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| 20 | |
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| 21 | |
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| 22 | #include <boost/geometry/core/point_type.hpp> |
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| 23 | #include <boost/geometry/core/static_assert.hpp> |
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| 24 | #include <boost/geometry/util/type_traits_std.hpp> |
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| 25 | |
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| 26 | |
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| 27 | namespace boost { namespace geometry |
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| 28 | { |
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| 29 | |
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| 30 | |
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| 31 | namespace traits |
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| 32 | { |
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| 33 | |
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| 34 | /*! |
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| 35 | \brief Traits class defining the coordinate system of a point, important for strategy selection |
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| 36 | \ingroup traits |
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| 37 | \par Geometries: |
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| 38 | - point |
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| 39 | \par Specializations should provide: |
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| 40 | - typedef CS type; (cs::cartesian, cs::spherical, etc) |
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| 41 | */ |
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| 42 | template <typename Point, typename Enable = void> |
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| 43 | struct coordinate_system |
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| 44 | { |
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| 45 | BOOST_GEOMETRY_STATIC_ASSERT_FALSE( |
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| 46 | "Not implemented for this Point type." , |
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| 47 | Point); |
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| 48 | }; |
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| 49 | |
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| 50 | } // namespace traits |
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| 51 | |
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| 52 | |
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| 53 | |
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| 54 | #ifndef DOXYGEN_NO_DISPATCH |
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| 55 | namespace core_dispatch |
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| 56 | { |
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| 57 | template <typename GeometryTag, typename G> |
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| 58 | struct coordinate_system |
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| 59 | { |
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| 60 | typedef typename point_type<GeometryTag, G>::type P; |
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| 61 | |
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| 62 | // Call its own specialization on point-tag |
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| 63 | typedef typename coordinate_system<point_tag, P>::type type; |
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| 64 | }; |
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| 65 | |
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| 66 | |
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| 67 | template <typename Point> |
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| 68 | struct coordinate_system<point_tag, Point> |
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| 69 | { |
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| 70 | typedef typename traits::coordinate_system |
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| 71 | < |
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| 72 | typename util::remove_cptrref<Point>::type |
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| 73 | >::type type; |
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| 74 | }; |
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| 75 | |
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| 76 | |
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| 77 | } // namespace core_dispatch |
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| 78 | #endif |
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| 79 | |
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| 80 | |
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| 81 | /*! |
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| 82 | \brief \brief_meta{type, coordinate system (cartesian\, spherical\, etc), \meta_point_type} |
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| 83 | \tparam Geometry \tparam_geometry |
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| 84 | \ingroup core |
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| 85 | |
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| 86 | \qbk{[include reference/core/coordinate_system.qbk]} |
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| 87 | */ |
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| 88 | template <typename Geometry> |
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| 89 | struct coordinate_system |
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| 90 | { |
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| 91 | typedef typename core_dispatch::coordinate_system |
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| 92 | < |
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| 93 | typename tag<Geometry>::type, |
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| 94 | typename util::remove_cptrref<Geometry>::type |
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| 95 | >::type type; |
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| 96 | }; |
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| 97 | |
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| 98 | |
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| 99 | }} // namespace boost::geometry |
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| 100 | |
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| 101 | |
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| 102 | #endif // BOOST_GEOMETRY_CORE_COORDINATE_SYSTEM_HPP |
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| 103 | |
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