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+// Boost.Geometry (aka GGL, Generic Geometry Library)
+
+// Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands.
+// Copyright (c) 2008-2015 Bruno Lalande, Paris, France.
+// Copyright (c) 2009-2015 Mateusz Loskot, London, UK.
+// Copyright (c) 2014-2015 Samuel Debionne, Grenoble, France.
+
+// This file was modified by Oracle on 2015.
+// Modifications copyright (c) 2015, Oracle and/or its affiliates.
+
+// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
+
+// Distributed under 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_EXPAND_SEGMENT_HPP
+#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_EXPAND_SEGMENT_HPP
+
+#include <boost/mpl/assert.hpp>
+#include <boost/type_traits/is_same.hpp>
+
+#include <boost/geometry/core/coordinate_dimension.hpp>
+#include <boost/geometry/core/tags.hpp>
+
+#include <boost/geometry/algorithms/detail/envelope/box.hpp>
+#include <boost/geometry/algorithms/detail/envelope/range_of_boxes.hpp>
+#include <boost/geometry/algorithms/detail/envelope/segment.hpp>
+
+#include <boost/geometry/algorithms/detail/expand/indexed.hpp>
+
+#include <boost/geometry/algorithms/dispatch/expand.hpp>
+
+
+namespace boost { namespace geometry
+{
+
+#ifndef DOXYGEN_NO_DETAIL
+namespace detail { namespace expand
+{
+
+
+struct segment_on_sphere
+{
+ template <typename Box, typename Segment>
+ static inline void apply(Box& box, Segment const& segment)
+ {
+ Box mbrs[2];
+
+ // compute the envelope of the segment
+ detail::envelope::envelope_segment_on_sphere
+ <
+ dimension<Segment>::value
+ >::apply(segment, mbrs[0]);
+
+ // normalize the box
+ detail::envelope::envelope_box_on_spheroid::apply(box, mbrs[1]);
+
+ // compute the envelope of the two boxes
+ detail::envelope::envelope_range_of_boxes::apply(mbrs, box);
+ }
+};
+
+
+}} // namespace detail::expand
+#endif // DOXYGEN_NO_DETAIL
+
+#ifndef DOXYGEN_NO_DISPATCH
+namespace dispatch
+{
+
+
+template
+<
+ typename Box, typename Segment,
+ typename StrategyLess, typename StrategyGreater,
+ typename CSTagOut, typename CSTag
+>
+struct expand
+ <
+ Box, Segment,
+ StrategyLess, StrategyGreater,
+ box_tag, segment_tag,
+ CSTagOut, CSTag
+ > : detail::expand::expand_indexed
+ <
+ 0, dimension<Segment>::value, StrategyLess, StrategyGreater
+ >
+{
+ BOOST_MPL_ASSERT_MSG((boost::is_same<CSTagOut, CSTag>::value),
+ COORDINATE_SYSTEMS_MUST_BE_THE_SAME,
+ (types<CSTagOut, CSTag>()));
+};
+
+template
+<
+ typename Box, typename Segment,
+ typename StrategyLess, typename StrategyGreater
+>
+struct expand
+ <
+ Box, Segment,
+ StrategyLess, StrategyGreater,
+ box_tag, segment_tag,
+ spherical_equatorial_tag, spherical_equatorial_tag
+ > : detail::expand::segment_on_sphere
+{};
+
+
+} // namespace dispatch
+#endif // DOXYGEN_NO_DISPATCH
+
+}} // namespace boost::geometry
+
+#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_EXPAND_SEGMENT_HPP