projects / ceph.git / blame
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|---|---|---|
| 7c673cae FG |
1 | // Boost.Geometry (aka GGL, Generic Geometry Library) |
| 2 | ||
| 3 | // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands. | |
| 4 | // Copyright (c) 2008-2012 Bruno Lalande, Paris, France. | |
| 5 | // Copyright (c) 2009-2012 Mateusz Loskot, London, UK. | |
| 6 | ||
| 7 | // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library | |
| 8 | // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. | |
| 9 | ||
| 10 | // Use, modification and distribution is subject to the Boost Software License, | |
| 11 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
| 12 | // http://www.boost.org/LICENSE_1_0.txt) | |
| 13 | ||
| 14 | #ifndef BOOST_GEOMETRY_UTIL_FOR_EACH_COORDINATE_HPP | |
| 15 | #define BOOST_GEOMETRY_UTIL_FOR_EACH_COORDINATE_HPP | |
| 16 | ||
| 17 | #include <boost/concept/requires.hpp> | |
| 18 | #include <boost/geometry/geometries/concepts/point_concept.hpp> | |
| 19 | #include <boost/geometry/util/add_const_if_c.hpp> | |
| 20 | ||
| 21 | namespace boost { namespace geometry | |
| 22 | { | |
| 23 | ||
| 24 | #ifndef DOXYGEN_NO_DETAIL | |
| 25 | namespace detail | |
| 26 | { | |
| 27 | ||
| 28 | template <typename Point, int Dimension, int DimensionCount, bool IsConst> | |
| 29 | struct coordinates_scanner | |
| 30 | { | |
| 31 | template <typename Op> | |
| 32 | static inline Op apply(typename add_const_if_c | |
| 33 | < | |
| 34 | IsConst, | |
| 35 | Point | |
| 36 | >::type& point, Op operation) | |
| 37 | { | |
| 38 | operation.template apply<Point, Dimension>(point); | |
| 39 | return coordinates_scanner | |
| 40 | < | |
| 41 | Point, | |
| 42 | Dimension+1, | |
| 43 | DimensionCount, | |
| 44 | IsConst | |
| 45 | >::apply(point, operation); | |
| 46 | } | |
| 47 | }; | |
| 48 | ||
| 49 | template <typename Point, int DimensionCount, bool IsConst> | |
| 50 | struct coordinates_scanner<Point, DimensionCount, DimensionCount, IsConst> | |
| 51 | { | |
| 52 | template <typename Op> | |
| 53 | static inline Op apply(typename add_const_if_c | |
| 54 | < | |
| 55 | IsConst, | |
| 56 | Point | |
| 57 | >::type& , Op operation) | |
| 58 | { | |
| 59 | return operation; | |
| 60 | } | |
| 61 | }; | |
| 62 | ||
| 63 | } // namespace detail | |
| 64 | #endif // DOXYGEN_NO_DETAIL | |
| 65 | ||
| 66 | template <typename Point, typename Op> | |
| 67 | inline void for_each_coordinate(Point& point, Op operation) | |
| 68 | { | |
| 69 | BOOST_CONCEPT_ASSERT( (concepts::Point<Point>) ); | |
| 70 | ||
| 71 | typedef typename detail::coordinates_scanner | |
| 72 | < | |
| 73 | Point, 0, dimension<Point>::type::value, false | |
| 74 | > scanner; | |
| 75 | ||
| 76 | scanner::apply(point, operation); | |
| 77 | } | |
| 78 | ||
| 79 | template <typename Point, typename Op> | |
| 80 | inline Op for_each_coordinate(Point const& point, Op operation) | |
| 81 | { | |
| 82 | BOOST_CONCEPT_ASSERT( (concepts::ConstPoint<Point>) ); | |
| 83 | ||
| 84 | typedef typename detail::coordinates_scanner | |
| 85 | < | |
| 86 | Point, 0, dimension<Point>::type::value, true | |
| 87 | > scanner; | |
| 88 | ||
| 89 | return scanner::apply(point, operation); | |
| 90 | } | |
| 91 | ||
| 92 | }} // namespace boost::geometry | |
| 93 | ||
| 94 | #endif // BOOST_GEOMETRY_UTIL_FOR_EACH_COORDINATE_HPP |