add boost on mac

macx64/include/boost/geometry/strategies/geographic/densify.hpp

@@ -0,0 +1,136 @@
+// Boost.Geometry
+
+// Copyright (c) 2017-2018, Oracle and/or its affiliates.
+
+// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
+
+// Licensed under the Boost Software License version 1.0.
+// http://www.boost.org/users/license.html
+
+#ifndef BOOST_GEOMETRY_STRATEGIES_GEOGRAPHIC_DENSIFY_HPP
+#define BOOST_GEOMETRY_STRATEGIES_GEOGRAPHIC_DENSIFY_HPP
+
+
+#include <boost/geometry/algorithms/detail/convert_point_to_point.hpp>
+#include <boost/geometry/algorithms/detail/signed_size_type.hpp>
+#include <boost/geometry/core/assert.hpp>
+#include <boost/geometry/core/coordinate_dimension.hpp>
+#include <boost/geometry/core/coordinate_type.hpp>
+#include <boost/geometry/core/radian_access.hpp>
+#include <boost/geometry/srs/spheroid.hpp>
+#include <boost/geometry/strategies/densify.hpp>
+#include <boost/geometry/strategies/geographic/parameters.hpp>
+#include <boost/geometry/util/select_most_precise.hpp>
+
+
+namespace boost { namespace geometry
+{
+
+namespace strategy { namespace densify
+{
+
+
+/*!
+\brief Densification of geographic segment.
+\ingroup strategies
+\tparam FormulaPolicy The geodesic formulas used internally.
+\tparam Spheroid The spheroid model.
+\tparam CalculationType \tparam_calculation
+
+\qbk{
+[heading See also]
+\* [link geometry.reference.algorithms.densify.densify_4_with_strategy densify (with strategy)]
+\* [link geometry.reference.srs.srs_spheroid srs::spheroid]
+}
+ */
+template
+<
+    typename FormulaPolicy = strategy::andoyer,
+    typename Spheroid = srs::spheroid<double>,
+    typename CalculationType = void
+>
+class geographic
+{
+public:
+    geographic()
+        : m_spheroid()
+    {}
+
+    explicit geographic(Spheroid const& spheroid)
+        : m_spheroid(spheroid)
+    {}
+
+    template <typename Point, typename AssignPolicy, typename T>
+    inline void apply(Point const& p0, Point const& p1, AssignPolicy & policy, T const& length_threshold) const
+    {
+        typedef typename AssignPolicy::point_type out_point_t;
+        typedef typename select_most_precise
+            <
+                typename coordinate_type<Point>::type,
+                typename coordinate_type<out_point_t>::type,
+                CalculationType
+            >::type calc_t;
+
+        typedef typename FormulaPolicy::template direct<calc_t, true, false, false, false> direct_t;
+        typedef typename FormulaPolicy::template inverse<calc_t, true, true, false, false, false> inverse_t;
+
+        typename inverse_t::result_type
+            inv_r = inverse_t::apply(get_as_radian<0>(p0), get_as_radian<1>(p0),
+                                     get_as_radian<0>(p1), get_as_radian<1>(p1),
+                                     m_spheroid);
+
+        BOOST_GEOMETRY_ASSERT(length_threshold > T(0));
+
+        signed_size_type n = signed_size_type(inv_r.distance / length_threshold);
+        if (n <= 0)
+            return;
+
+        calc_t step = inv_r.distance / (n + 1);
+
+        calc_t current = step;
+        for (signed_size_type i = 0 ; i < n ; ++i, current += step)
+        {
+            typename direct_t::result_type
+                dir_r = direct_t::apply(get_as_radian<0>(p0), get_as_radian<1>(p0),
+                                        current, inv_r.azimuth,
+                                        m_spheroid);
+
+            out_point_t p;
+            set_from_radian<0>(p, dir_r.lon2);
+            set_from_radian<1>(p, dir_r.lat2);
+            geometry::detail::conversion::point_to_point
+                <
+                    Point, out_point_t,
+                    2, dimension<out_point_t>::value
+                >::apply(p0, p);
+
+            policy.apply(p);
+        }
+    }
+
+private:
+    Spheroid m_spheroid;
+};
+
+
+#ifndef DOXYGEN_NO_STRATEGY_SPECIALIZATIONS
+namespace services
+{
+
+template <>
+struct default_strategy<geographic_tag>
+{
+    typedef strategy::densify::geographic<> type;
+};
+
+
+} // namespace services
+#endif // DOXYGEN_NO_STRATEGY_SPECIALIZATIONS
+
+
+}} // namespace strategy::densify
+
+
+}} // namespace boost::geometry
+
+#endif // BOOST_GEOMETRY_ALGORITHMS_DENSIFY_HPP