| // Boost.Geometry (aka GGL, Generic Geometry Library) |
| |
| // Copyright (c) 2007-2014 Barend Gehrels, Amsterdam, the Netherlands. |
| // Copyright (c) 2008-2014 Bruno Lalande, Paris, France. |
| // Copyright (c) 2009-2014 Mateusz Loskot, London, UK. |
| // Copyright (c) 2014 Adam Wulkiewicz, Lodz, Poland. |
| |
| // This file was modified by Oracle on 2014. |
| // Modifications copyright (c) 2014, Oracle and/or its affiliates. |
| |
| // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle |
| |
| // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library |
| // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. |
| |
| // 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_COUNTING_HPP |
| #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_COUNTING_HPP |
| |
| #include <cstddef> |
| |
| #include <boost/range.hpp> |
| |
| #include <boost/geometry/core/exterior_ring.hpp> |
| #include <boost/geometry/core/interior_rings.hpp> |
| |
| #include <boost/geometry/util/range.hpp> |
| |
| #include <boost/geometry/algorithms/detail/interior_iterator.hpp> |
| |
| |
| namespace boost { namespace geometry |
| { |
| |
| |
| #ifndef DOXYGEN_NO_DETAIL |
| namespace detail { namespace counting |
| { |
| |
| |
| template <std::size_t D> |
| struct other_count |
| { |
| template <typename Geometry> |
| static inline std::size_t apply(Geometry const&) |
| { |
| return D; |
| } |
| |
| template <typename Geometry> |
| static inline std::size_t apply(Geometry const&, bool) |
| { |
| return D; |
| } |
| }; |
| |
| |
| template <typename RangeCount> |
| struct polygon_count |
| { |
| template <typename Polygon> |
| static inline std::size_t apply(Polygon const& poly) |
| { |
| std::size_t n = RangeCount::apply(exterior_ring(poly)); |
| |
| typename interior_return_type<Polygon const>::type |
| rings = interior_rings(poly); |
| for (typename detail::interior_iterator<Polygon const>::type |
| it = boost::begin(rings); it != boost::end(rings); ++it) |
| { |
| n += RangeCount::apply(*it); |
| } |
| |
| return n; |
| } |
| }; |
| |
| |
| template <typename SingleCount> |
| struct multi_count |
| { |
| template <typename MultiGeometry> |
| static inline std::size_t apply(MultiGeometry const& geometry) |
| { |
| std::size_t n = 0; |
| for (typename boost::range_iterator<MultiGeometry const>::type |
| it = boost::begin(geometry); |
| it != boost::end(geometry); |
| ++it) |
| { |
| n += SingleCount::apply(*it); |
| } |
| return n; |
| } |
| }; |
| |
| |
| }} // namespace detail::counting |
| #endif // DOXYGEN_NO_DETAIL |
| |
| }} // namespace boost::geometry |
| |
| |
| #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_COUNTING_HPP |