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+// Boost.Geometry
+
+// Copyright (c) 2021, Oracle and/or its affiliates.
+
+// Contributed and/or modified by Vissarion Fysikopoulos, on behalf of Oracle
+
+// Licensed under the Boost Software License version 1.0.
+// http://www.boost.org/users/license.html
+
+#ifndef BOOST_GEOMETRY_STRATEGIES_CLOSEST_POINTS_GEOGRAPHIC_HPP
+#define BOOST_GEOMETRY_STRATEGIES_CLOSEST_POINTS_GEOGRAPHIC_HPP
+
+#include <boost/geometry/strategies/detail.hpp>
+#include <boost/geometry/strategies/distance/detail.hpp>
+#include <boost/geometry/strategies/closest_points/services.hpp>
+#include <boost/geometry/strategies/geographic/closest_points_pt_seg.hpp>
+#include <boost/geometry/strategies/geographic/parameters.hpp>
+
+#include <boost/geometry/strategies/distance/geographic.hpp>
+
+#include <boost/geometry/util/type_traits.hpp>
+
+
+namespace boost { namespace geometry
+{
+
+namespace strategies { namespace closest_points
+{
+
+template
+<
+ typename FormulaPolicy = geometry::strategy::andoyer,
+ typename Spheroid = srs::spheroid<double>,
+ typename CalculationType = void
+>
+class geographic
+ : public strategies::distance::geographic<FormulaPolicy, Spheroid, CalculationType>
+{
+ using base_t = strategies::distance::geographic<FormulaPolicy, Spheroid, CalculationType>;
+
+public:
+
+ geographic() = default;
+
+ explicit geographic(Spheroid const& spheroid)
+ : base_t(spheroid)
+ {}
+
+ template <typename Geometry1, typename Geometry2>
+ auto closest_points(Geometry1 const&, Geometry2 const&,
+ distance::detail::enable_if_ps_t<Geometry1, Geometry2> * = nullptr) const
+ {
+ return strategy::closest_points::geographic_cross_track
+ <
+ FormulaPolicy,
+ Spheroid,
+ CalculationType
+ >(base_t::m_spheroid);
+ }
+};
+
+
+namespace services
+{
+
+template <typename Geometry1, typename Geometry2>
+struct default_strategy<Geometry1, Geometry2, geographic_tag, geographic_tag>
+{
+ using type = strategies::closest_points::geographic<>;
+};
+
+} // namespace services
+
+}} // namespace strategies::closest_points
+
+}} // namespace boost::geometry
+
+#endif // BOOST_GEOMETRY_STRATEGIES_CLOSEST_POINTS_GEOGRAPHIC_HPP