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| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | // Boost.Geometry Index |
| 2 | // | |
| 3 | // n-dimensional bounds | |
| 4 | // | |
| 5 | // Copyright (c) 2011-2014 Adam Wulkiewicz, Lodz, Poland. | |
| 6 | // | |
| 7 | // Use, modification and distribution is subject to the Boost Software License, | |
| 8 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
| 9 | // http://www.boost.org/LICENSE_1_0.txt) | |
| 10 | ||
| 11 | #ifndef BOOST_GEOMETRY_INDEX_DETAIL_ALGORITHMS_BOUNDS_HPP | |
| 12 | #define BOOST_GEOMETRY_INDEX_DETAIL_ALGORITHMS_BOUNDS_HPP | |
| 13 | ||
| 14 | #include <boost/geometry/index/detail/bounded_view.hpp> | |
| 15 | ||
| 16 | namespace boost { namespace geometry { namespace index { namespace detail { | |
| 17 | ||
| 18 | namespace dispatch { | |
| 19 | ||
| 20 | template <typename Geometry, | |
| 21 | typename Bounds, | |
| 22 | typename TagGeometry = typename geometry::tag<Geometry>::type, | |
| 23 | typename TagBounds = typename geometry::tag<Bounds>::type> | |
| 24 | struct bounds | |
| 25 | { | |
| 26 | static inline void apply(Geometry const& g, Bounds & b) | |
| 27 | { | |
| 28 | geometry::convert(g, b); | |
| 29 | } | |
| 30 | }; | |
| 31 | ||
| 32 | template <typename Geometry, typename Bounds> | |
| 33 | struct bounds<Geometry, Bounds, segment_tag, box_tag> | |
| 34 | { | |
| 35 | static inline void apply(Geometry const& g, Bounds & b) | |
| 36 | { | |
| 37 | index::detail::bounded_view<Geometry, Bounds> v(g); | |
| 38 | geometry::convert(v, b); | |
| 39 | } | |
| 40 | }; | |
| 41 | ||
| 42 | } // namespace dispatch | |
| 43 | ||
| 44 | template <typename Geometry, typename Bounds> | |
| 45 | inline void bounds(Geometry const& g, Bounds & b) | |
| 46 | { | |
| 47 | concepts::check_concepts_and_equal_dimensions<Geometry const, Bounds>(); | |
| 48 | dispatch::bounds<Geometry, Bounds>::apply(g, b); | |
| 49 | } | |
| 50 | ||
| 51 | namespace dispatch { | |
| 52 | ||
| 53 | template <typename Geometry, | |
| 54 | typename TagGeometry = typename geometry::tag<Geometry>::type> | |
| 55 | struct return_ref_or_bounds | |
| 56 | { | |
| 57 | typedef Geometry const& result_type; | |
| 58 | ||
| 59 | static inline result_type apply(Geometry const& g) | |
| 60 | { | |
| 61 | return g; | |
| 62 | } | |
| 63 | }; | |
| 64 | ||
| 65 | template <typename Geometry> | |
| 66 | struct return_ref_or_bounds<Geometry, segment_tag> | |
| 67 | { | |
| 68 | typedef typename point_type<Geometry>::type point_type; | |
| 69 | typedef geometry::model::box<point_type> bounds_type; | |
| 70 | typedef index::detail::bounded_view<Geometry, bounds_type> result_type; | |
| 71 | ||
| 72 | static inline result_type apply(Geometry const& g) | |
| 73 | { | |
| 74 | return result_type(g); | |
| 75 | } | |
| 76 | }; | |
| 77 | ||
| 78 | } // namespace dispatch | |
| 79 | ||
| 80 | template <typename Geometry> | |
| 81 | inline | |
| 82 | typename dispatch::return_ref_or_bounds<Geometry>::result_type | |
| 83 | return_ref_or_bounds(Geometry const& g) | |
| 84 | { | |
| 85 | return dispatch::return_ref_or_bounds<Geometry>::apply(g); | |
| 86 | } | |
| 87 | ||
| 88 | }}}} // namespace boost::geometry::index::detail | |
| 89 | ||
| 90 | #endif // BOOST_GEOMETRY_INDEX_DETAIL_ALGORITHMS_BOUNDS_HPP |