strategy/cartesian/envelope_segment.hpp

0001 // Boost.Geometry (aka GGL, Generic Geometry Library)
0002
0003 // Copyright (c) 2017-2018 Oracle and/or its affiliates.
0004 // Contributed and/or modified by Vissarion Fisikopoulos, on behalf of Oracle
0005 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
0006
0007 // Use, modification and distribution is subject to the Boost Software License,
0008 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
0009 // http://www.boost.org/LICENSE_1_0.txt)
0010
0011 #ifndef BOOST_GEOMETRY_STRATEGY_CARTESIAN_ENVELOPE_SEGMENT_HPP
0012 #define BOOST_GEOMETRY_STRATEGY_CARTESIAN_ENVELOPE_SEGMENT_HPP
0013
0014 #include <cstddef>
0015
0016 #include <boost/geometry/core/coordinate_dimension.hpp>
0017 #include <boost/geometry/core/tags.hpp>
0018
0019 #include <boost/geometry/strategy/cartesian/envelope_point.hpp>
0020 #include <boost/geometry/strategy/cartesian/expand_point.hpp>
0021 #include <boost/geometry/strategy/envelope.hpp>
0022
0023 namespace boost { namespace geometry { namespace strategy { namespace envelope
0024 {
0025
0026 #ifndef DOXYGEN_NO_DETAIL
0027 namespace detail
0028 {
0029
0030 template <std::size_t Dimension, std::size_t DimensionCount>
0031 struct envelope_one_segment
0032 {
0033     template<typename Point, typename Box>
0034     static inline void apply(Point const& p1,
0035                              Point const& p2,
0036                              Box& mbr)
0037     {
0038         geometry::detail::envelope::envelope_one_point
0039             <
0040                 Dimension, DimensionCount
0041             >::apply(p1, mbr);
0042
0043         strategy::expand::detail::point_loop
0044             <
0045                 Dimension, DimensionCount
0046             >::apply(mbr, p2);
0047     }
0048 };
0049
0050 } // namespace detail
0051 #endif // DOXYGEN_NO_DETAIL
0052
0053
0054 template
0055 <
0056     typename CalculationType = void
0057 >
0058 class cartesian_segment
0059 {
0060 public:
0061     template <typename Point, typename Box>
0062     static inline void apply(Point const& point1, Point const& point2, Box& box)
0063     {
0064         strategy::envelope::detail::envelope_one_segment
0065             <
0066                 0,
0067                 dimension<Point>::value
0068             >::apply(point1, point2, box);
0069     }
0070
0071 };
0072
0073 #ifndef DOXYGEN_NO_STRATEGY_SPECIALIZATIONS
0074
0075 namespace services
0076 {
0077
0078 template <typename CalculationType>
0079 struct default_strategy<segment_tag, cartesian_tag, CalculationType>
0080 {
0081     typedef strategy::envelope::cartesian_segment<CalculationType> type;
0082 };
0083
0084 }
0085
0086 #endif // DOXYGEN_NO_STRATEGY_SPECIALIZATIONS
0087
0088
0089 }} // namespace strategy::envelope
0090
0091 }} //namepsace boost::geometry
0092
0093 #endif // BOOST_GEOMETRY_STRATEGY_CARTESIAN_ENVELOPE_SEGMENT_HPP