1 // Boost.Geometry (aka GGL, Generic Geometry Library) 2 3 // Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands. 4 // Copyright (c) 2008-2015 Bruno Lalande, Paris, France. 5 // Copyright (c) 2009-2015 Mateusz Loskot, London, UK. 6 7 // This file was modified by Oracle on 2015-2018. 8 // Modifications copyright (c) 2015-2018, Oracle and/or its affiliates. 9 10 // Contributed and/or modified by Vissarion Fysikopoulos, on behalf of Oracle 11 // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle 12 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle 13 14 // Distributed under the Boost Software License, Version 1.0. 15 // (See accompanying file LICENSE_1_0.txt or copy at 16 // http://www.boost.org/LICENSE_1_0.txt) 17 18 #ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_ENVELOPE_SEGMENT_HPP 19 #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_ENVELOPE_SEGMENT_HPP 20 21 #include <cstddef> 22 23 #include <boost/geometry/core/tags.hpp> 24 25 #include <boost/geometry/algorithms/detail/assign_indexed_point.hpp> 26 #include <boost/geometry/algorithms/dispatch/envelope.hpp> 27 28 // For backward compatibility 29 #include <boost/geometry/strategies/cartesian/envelope_segment.hpp> 30 #include <boost/geometry/strategies/spherical/envelope_segment.hpp> 31 #include <boost/geometry/strategies/geographic/envelope_segment.hpp> 32 33 namespace boost { namespace geometry 34 { 35 36 #ifndef DOXYGEN_NO_DETAIL 37 namespace detail { namespace envelope 38 { 39 40 template <std::size_t DimensionCount> 41 struct envelope_segment 42 { 43 template <typename Point, typename Box, typename Strategy> applyboost::geometry::detail::envelope::envelope_segment44 static inline void apply(Point const& p1, 45 Point const& p2, 46 Box& mbr, 47 Strategy const& strategy) 48 { 49 strategy.apply(p1, p2, mbr); 50 } 51 52 template <typename Segment, typename Box, typename Strategy> applyboost::geometry::detail::envelope::envelope_segment53 static inline void apply(Segment const& segment, Box& mbr, 54 Strategy const& strategy) 55 { 56 typename point_type<Segment>::type p[2]; 57 detail::assign_point_from_index<0>(segment, p[0]); 58 detail::assign_point_from_index<1>(segment, p[1]); 59 apply(p[0], p[1], mbr, strategy); 60 } 61 }; 62 63 }} // namespace detail::envelope 64 #endif // DOXYGEN_NO_DETAIL 65 66 67 #ifndef DOXYGEN_NO_DISPATCH 68 namespace dispatch 69 { 70 71 72 template <typename Segment> 73 struct envelope<Segment, segment_tag> 74 { 75 template <typename Box, typename Strategy> applyboost::geometry::dispatch::envelope76 static inline void apply(Segment const& segment, 77 Box& mbr, 78 Strategy const& strategy) 79 { 80 typename point_type<Segment>::type p[2]; 81 detail::assign_point_from_index<0>(segment, p[0]); 82 detail::assign_point_from_index<1>(segment, p[1]); 83 detail::envelope::envelope_segment 84 < 85 dimension<Segment>::value 86 >::apply(p[0], p[1], mbr, strategy); 87 } 88 }; 89 90 } // namespace dispatch 91 #endif // DOXYGEN_NO_DISPATCH 92 93 }} // namespace boost::geometry 94 95 #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_ENVELOPE_SEGMENT_HPP 96