projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | // Boost.Geometry (aka GGL, Generic Geometry Library) |
| 2 | ||
| 3 | // Copyright (c) 2015, Oracle and/or its affiliates. | |
| 4 | ||
| 5 | // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle | |
| 6 | ||
| 7 | // Distributed under the Boost Software License, Version 1.0. | |
| 8 | // (See accompanying file LICENSE_1_0.txt or copy at | |
| 9 | // http://www.boost.org/LICENSE_1_0.txt) | |
| 10 | ||
| 11 | #ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_ENVELOPE_TRANSFORM_UNITS_HPP | |
| 12 | #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_ENVELOPE_TRANSFORM_UNITS_HPP | |
| 13 | ||
| 14 | #include <cstddef> | |
| 15 | ||
| 16 | #include <boost/geometry/core/tag.hpp> | |
| 17 | #include <boost/geometry/core/tags.hpp> | |
| 18 | ||
| 19 | #include <boost/geometry/strategies/strategy_transform.hpp> | |
| 20 | ||
| 21 | #include <boost/geometry/views/detail/indexed_point_view.hpp> | |
| 22 | #include <boost/geometry/views/detail/two_dimensional_view.hpp> | |
| 23 | ||
| 24 | #include <boost/geometry/algorithms/not_implemented.hpp> | |
| 25 | #include <boost/geometry/algorithms/transform.hpp> | |
| 26 | ||
| 27 | ||
| 28 | namespace boost { namespace geometry | |
| 29 | { | |
| 30 | ||
| 31 | #ifndef DOXYGEN_NO_DETAIL | |
| 32 | namespace detail { namespace envelope | |
| 33 | { | |
| 34 | ||
| 35 | ||
| 36 | template | |
| 37 | < | |
| 38 | typename GeometryIn, | |
| 39 | typename GeometryOut, | |
| 40 | typename TagIn = typename tag<GeometryIn>::type, | |
| 41 | typename TagOut = typename tag<GeometryOut>::type | |
| 42 | > | |
| 43 | struct transform_units_impl | |
| 44 | : not_implemented<TagIn, TagOut> | |
| 45 | {}; | |
| 46 | ||
| 47 | template <typename PointIn, typename PointOut> | |
| 48 | struct transform_units_impl<PointIn, PointOut, point_tag, point_tag> | |
| 49 | { | |
| 50 | static inline void apply(PointIn const& point_in, PointOut& point_out) | |
| 51 | { | |
| 52 | detail::two_dimensional_view<PointIn const> view_in(point_in); | |
| 53 | detail::two_dimensional_view<PointOut> view_out(point_out); | |
| 54 | ||
| 55 | geometry::transform(view_in, view_out); | |
| 56 | } | |
| 57 | }; | |
| 58 | ||
| 59 | template <typename BoxIn, typename BoxOut> | |
| 60 | struct transform_units_impl<BoxIn, BoxOut, box_tag, box_tag> | |
| 61 | { | |
| 62 | template <std::size_t Index> | |
| 63 | static inline void apply(BoxIn const& box_in, BoxOut& box_out) | |
| 64 | { | |
| 65 | typedef detail::indexed_point_view<BoxIn const, Index> view_in_type; | |
| 66 | typedef detail::indexed_point_view<BoxOut, Index> view_out_type; | |
| 67 | ||
| 68 | view_in_type view_in(box_in); | |
| 69 | view_out_type view_out(box_out); | |
| 70 | ||
| 71 | transform_units_impl | |
| 72 | < | |
| 73 | view_in_type, view_out_type | |
| 74 | >::apply(view_in, view_out); | |
| 75 | } | |
| 76 | ||
| 77 | static inline void apply(BoxIn const& box_in, BoxOut& box_out) | |
| 78 | { | |
| 79 | apply<min_corner>(box_in, box_out); | |
| 80 | apply<max_corner>(box_in, box_out); | |
| 81 | } | |
| 82 | }; | |
| 83 | ||
| 84 | ||
| 85 | // Short utility to transform the units of the first two coordinates of | |
| 86 | // geometry_in to the units of geometry_out | |
| 87 | template <typename GeometryIn, typename GeometryOut> | |
| 88 | inline void transform_units(GeometryIn const& geometry_in, | |
| 89 | GeometryOut& geometry_out) | |
| 90 | { | |
| 91 | transform_units_impl | |
| 92 | < | |
| 93 | GeometryIn, GeometryOut | |
| 94 | >::apply(geometry_in, geometry_out); | |
| 95 | } | |
| 96 | ||
| 97 | ||
| 98 | }} // namespace detail::envelope | |
| 99 | #endif // DOXYGEN_NO_DETAIL | |
| 100 | ||
| 101 | }} // namespace boost:geometry | |
| 102 | ||
| 103 | #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_ENVELOPE_TRANSFORM_UNITS_HPP |