Added boost header

test/external/boost/geometry/multi/algorithms/envelope.hpp

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+// Boost.Geometry (aka GGL, Generic Geometry Library)
+
+// Copyright (c) 2007-2011 Barend Gehrels, Amsterdam, the Netherlands.
+// Copyright (c) 2008-2011 Bruno Lalande, Paris, France.
+// Copyright (c) 2009-2011 Mateusz Loskot, London, UK.
+
+// 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_MULTI_ALGORITHMS_ENVELOPE_HPP
+#define BOOST_GEOMETRY_MULTI_ALGORITHMS_ENVELOPE_HPP
+
+#include <vector>
+
+#include <boost/range/metafunctions.hpp>
+
+
+#include <boost/geometry/core/exterior_ring.hpp>
+#include <boost/geometry/algorithms/envelope.hpp>
+
+#include <boost/geometry/multi/core/point_type.hpp>
+
+
+namespace boost { namespace geometry
+{
+
+#ifndef DOXYGEN_NO_DETAIL
+
+namespace detail { namespace envelope
+{
+
+
+template<typename MultiLinestring, typename Box>
+struct envelope_multi_linestring
+{
+    static inline void apply(MultiLinestring const& mp, Box& mbr)
+    {
+        assign_inverse(mbr);
+        for (typename boost::range_iterator<MultiLinestring const>::type
+                    it = mp.begin();
+            it != mp.end();
+            ++it)
+        {
+            envelope_range_additional(*it, mbr);
+        }
+    }
+};
+
+
+// version for multi_polygon: outer ring's of all polygons
+template<typename MultiPolygon, typename Box>
+struct envelope_multi_polygon
+{
+    static inline void apply(MultiPolygon const& mp, Box& mbr)
+    {
+        assign_inverse(mbr);
+        for (typename boost::range_const_iterator<MultiPolygon>::type
+                    it = mp.begin();
+            it != mp.end();
+            ++it)
+        {
+            envelope_range_additional(exterior_ring(*it), mbr);
+        }
+    }
+};
+
+
+}} // namespace detail::envelope
+
+#endif
+
+
+#ifndef DOXYGEN_NO_DISPATCH
+namespace dispatch
+{
+
+template
+<
+    typename Multi, typename Box,
+    typename StrategyLess, typename StrategyGreater
+>
+struct envelope<multi_point_tag, box_tag, Multi, Box, StrategyLess, StrategyGreater>
+    : detail::envelope::envelope_range<Multi, Box>
+{};
+
+template
+<
+    typename Multi, typename Box,
+    typename StrategyLess, typename StrategyGreater
+>
+struct envelope<multi_linestring_tag, box_tag, Multi, Box, StrategyLess, StrategyGreater>
+    : detail::envelope::envelope_multi_linestring<Multi, Box>
+{};
+
+
+template
+<
+    typename Multi, typename Box,
+    typename StrategyLess, typename StrategyGreater
+>
+struct envelope<multi_polygon_tag, box_tag, Multi, Box, StrategyLess, StrategyGreater>
+    : detail::envelope::envelope_multi_polygon<Multi, Box>
+{};
+
+
+} // namespace dispatch
+#endif
+
+
+}} // namespace boost::geometry
+
+
+#endif // BOOST_GEOMETRY_MULTI_ALGORITHMS_ENVELOPE_HPP