strategy/cartesian/envelope_box.hpp

0001 // Boost.Geometry (aka GGL, Generic Geometry Library)
0002
0003 // Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands.
0004 // Copyright (c) 2008-2015 Bruno Lalande, Paris, France.
0005 // Copyright (c) 2009-2015 Mateusz Loskot, London, UK.
0006
0007 // This file was modified by Oracle on 2015-2020.
0008 // Modifications copyright (c) 2015-2020, Oracle and/or its affiliates.
0009
0010 // Contributed and/or modified by Vissarion Fysikopoulos, on behalf of Oracle
0011 // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
0012 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
0013
0014 // Distributed under the Boost Software License, Version 1.0.
0015 // (See accompanying file LICENSE_1_0.txt or copy at
0016 // http://www.boost.org/LICENSE_1_0.txt)
0017
0018 #ifndef BOOST_GEOMETRY_STRATEGY_CARTESIAN_ENVELOPE_BOX_HPP
0019 #define BOOST_GEOMETRY_STRATEGY_CARTESIAN_ENVELOPE_BOX_HPP
0020
0021 #include <cstddef>
0022
0023 #include <boost/geometry/core/access.hpp>
0024 #include <boost/geometry/core/coordinate_dimension.hpp>
0025 #include <boost/geometry/core/tags.hpp>
0026
0027 #include <boost/geometry/views/detail/indexed_point_view.hpp>
0028
0029 #include <boost/geometry/algorithms/detail/convert_point_to_point.hpp>
0030 #include <boost/geometry/algorithms/detail/normalize.hpp>
0031 #include <boost/geometry/algorithms/detail/envelope/transform_units.hpp>
0032
0033 #include <boost/geometry/algorithms/dispatch/envelope.hpp>
0034
0035 #include <boost/geometry/strategy/cartesian/expand_box.hpp>
0036
0037 #include <boost/geometry/strategy/envelope.hpp>
0038
0039
0040 namespace boost { namespace geometry
0041 {
0042
0043 #ifndef DOXYGEN_NO_DETAIL
0044 namespace detail { namespace envelope
0045 {
0046
0047
0048 template
0049 <
0050     std::size_t Index,
0051     std::size_t Dimension,
0052     std::size_t DimensionCount
0053 >
0054 struct envelope_indexed_box
0055 {
0056     template <typename BoxIn, typename BoxOut>
0057     static inline void apply(BoxIn const& box_in, BoxOut& mbr)
0058     {
0059         detail::indexed_point_view<BoxIn const, Index> box_in_corner(box_in);
0060         detail::indexed_point_view<BoxOut, Index> mbr_corner(mbr);
0061
0062         detail::conversion::point_to_point
0063             <
0064                 detail::indexed_point_view<BoxIn const, Index>,
0065                 detail::indexed_point_view<BoxOut, Index>,
0066                 Dimension,
0067                 DimensionCount
0068             >::apply(box_in_corner, mbr_corner);
0069     }
0070 };
0071
0072
0073 }} // namespace detail::envelope
0074 #endif // DOXYGEN_NO_DETAIL
0075
0076
0077 namespace strategy { namespace envelope
0078 {
0079
0080
0081 struct cartesian_box
0082 {
0083     typedef cartesian_tag cs_tag;
0084
0085     template<typename BoxIn, typename BoxOut>
0086     static inline void apply(BoxIn const& box_in, BoxOut& mbr)
0087     {
0088         geometry::detail::envelope::envelope_indexed_box
0089             <
0090                 min_corner, 0, dimension<BoxIn>::value
0091             >::apply(box_in, mbr);
0092
0093         geometry::detail::envelope::envelope_indexed_box
0094             <
0095                 max_corner, 0, dimension<BoxIn>::value
0096             >::apply(box_in, mbr);
0097     }
0098 };
0099
0100
0101 #ifndef DOXYGEN_NO_STRATEGY_SPECIALIZATIONS
0102
0103 namespace services
0104 {
0105
0106 template <typename CalculationType>
0107 struct default_strategy<box_tag, cartesian_tag, CalculationType>
0108 {
0109     typedef strategy::envelope::cartesian_box type;
0110 };
0111
0112 }
0113
0114 #endif // DOXYGEN_NO_STRATEGY_SPECIALIZATIONS
0115
0116
0117 }} // namespace strategy::envelope
0118
0119
0120 }} // namespace boost::geometry
0121
0122
0123 #endif // BOOST_GEOMETRY_STRATEGY_CARTESIAN_ENVELOPE_BOX_HPP