summaryrefslogtreecommitdiff
path: root/boost/geometry/algorithms/detail/counting.hpp
diff options
context:
space:
mode:
Diffstat (limited to 'boost/geometry/algorithms/detail/counting.hpp')
-rw-r--r--boost/geometry/algorithms/detail/counting.hpp107
1 files changed, 107 insertions, 0 deletions
diff --git a/boost/geometry/algorithms/detail/counting.hpp b/boost/geometry/algorithms/detail/counting.hpp
new file mode 100644
index 0000000000..dc5bb26c10
--- /dev/null
+++ b/boost/geometry/algorithms/detail/counting.hpp
@@ -0,0 +1,107 @@
+// 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