123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869 |
- // Boost.Geometry (aka GGL, Generic Geometry Library)
- // Copyright (c) 2014 Barend Gehrels, Amsterdam, the Netherlands.
- // Copyright (c) 2014 Bruno Lalande, Paris, France.
- // Copyright (c) 2014 Mateusz Loskot, London, UK.
- // Copyright (c) 2014 Adam Wulkiewicz, Lodz, Poland.
- // This file was modified by Oracle on 2018.
- // Modifications copyright (c) 2018, Oracle and/or its affiliates.
- // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
- // Use, modification and distribution is subject to the Boost Software License,
- // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt)
- #ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_GET_MAX_SIZE_HPP
- #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_GET_MAX_SIZE_HPP
- #include <cstddef>
- #include <boost/geometry/core/access.hpp>
- #include <boost/geometry/core/coordinate_dimension.hpp>
- #include <boost/geometry/util/math.hpp>
- namespace boost { namespace geometry
- {
- #ifndef DOXYGEN_NO_DETAIL
- namespace detail
- {
- template <typename Box, std::size_t Dimension>
- struct get_max_size_box
- {
- static inline typename coordinate_type<Box>::type apply(Box const& box)
- {
- typename coordinate_type<Box>::type s
- = geometry::math::abs(geometry::get<1, Dimension>(box) - geometry::get<0, Dimension>(box));
- return (std::max)(s, get_max_size_box<Box, Dimension - 1>::apply(box));
- }
- };
- template <typename Box>
- struct get_max_size_box<Box, 0>
- {
- static inline typename coordinate_type<Box>::type apply(Box const& box)
- {
- return geometry::math::abs(geometry::get<1, 0>(box) - geometry::get<0, 0>(box));
- }
- };
- // This might be implemented later on for other geometries too.
- // Not dispatched yet.
- template <typename Box>
- inline typename coordinate_type<Box>::type get_max_size(Box const& box)
- {
- return get_max_size_box<Box, dimension<Box>::value - 1>::apply(box);
- }
- } // namespace detail
- #endif // DOXYGEN_NO_DETAIL
- }} // namespace boost::geometry
- #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_GET_MAX_SIZE_HPP
|