add boost on mac
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Bassem Girgis
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// Boost.Geometry
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// Copyright (c) 2016-2017, Oracle and/or its affiliates.
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// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
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// Use, modification and distribution is subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_GEOMETRY_STRATEGIES_GEOGRAPHIC_INTERSECTION_ELLIPTIC_HPP
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#define BOOST_GEOMETRY_STRATEGIES_GEOGRAPHIC_INTERSECTION_ELLIPTIC_HPP
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#include <boost/geometry/srs/spheroid.hpp>
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#include <boost/geometry/formulas/geographic.hpp>
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#include <boost/geometry/strategies/spherical/intersection.hpp>
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namespace boost { namespace geometry
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{
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namespace strategy { namespace intersection
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{
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template <typename Spheroid>
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struct great_elliptic_segments_calc_policy
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: spherical_segments_calc_policy
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{
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explicit great_elliptic_segments_calc_policy(Spheroid const& spheroid = Spheroid())
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: m_spheroid(spheroid)
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{}
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template <typename Point, typename Point3d>
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Point from_cart3d(Point3d const& point_3d) const
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{
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return formula::cart3d_to_geo<Point>(point_3d, m_spheroid);
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}
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template <typename Point3d, typename Point>
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Point3d to_cart3d(Point const& point) const
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{
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return formula::geo_to_cart3d<Point3d>(point, m_spheroid);
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}
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// relate_xxx_calc_policy must live londer than plane because it contains
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// Spheroid object and plane keeps the reference to that object.
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template <typename Point3d>
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struct plane
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{
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typedef typename coordinate_type<Point3d>::type coord_t;
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// not normalized
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plane(Point3d const& p1, Point3d const& p2)
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: normal(cross_product(p1, p2))
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{}
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int side_value(Point3d const& pt) const
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{
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return formula::sph_side_value(normal, pt);
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}
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coord_t cos_angle_between(Point3d const& p1, Point3d const& p2) const
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{
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Point3d v1 = p1;
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detail::vec_normalize(v1);
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Point3d v2 = p2;
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detail::vec_normalize(v2);
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return dot_product(v1, v2);
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}
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coord_t cos_angle_between(Point3d const& p1, Point3d const& p2, bool & is_forward) const
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{
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coord_t const c0 = 0;
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Point3d v1 = p1;
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detail::vec_normalize(v1);
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Point3d v2 = p2;
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detail::vec_normalize(v2);
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is_forward = dot_product(normal, cross_product(v1, v2)) >= c0;
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return dot_product(v1, v2);
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}
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Point3d normal;
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};
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template <typename Point3d>
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plane<Point3d> get_plane(Point3d const& p1, Point3d const& p2) const
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{
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return plane<Point3d>(p1, p2);
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}
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template <typename Point3d>
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bool intersection_points(plane<Point3d> const& plane1,
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plane<Point3d> const& plane2,
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Point3d & ip1, Point3d & ip2) const
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{
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typedef typename coordinate_type<Point3d>::type coord_t;
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Point3d id = cross_product(plane1.normal, plane2.normal);
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// NOTE: the length should be greater than 0 at this point
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// NOTE: no need to normalize in this case
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ip1 = formula::projected_to_surface(id, m_spheroid);
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ip2 = ip1;
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multiply_value(ip2, coord_t(-1));
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return true;
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}
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private:
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Spheroid m_spheroid;
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};
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template <typename Spheroid>
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struct experimental_elliptic_segments_calc_policy
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{
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explicit experimental_elliptic_segments_calc_policy(Spheroid const& spheroid = Spheroid())
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: m_spheroid(spheroid)
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{}
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template <typename Point, typename Point3d>
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Point from_cart3d(Point3d const& point_3d) const
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{
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return formula::cart3d_to_geo<Point>(point_3d, m_spheroid);
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}
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template <typename Point3d, typename Point>
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Point3d to_cart3d(Point const& point) const
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{
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return formula::geo_to_cart3d<Point3d>(point, m_spheroid);
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}
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// relate_xxx_calc_policy must live londer than plane because it contains
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// Spheroid object and plane keeps the reference to that object.
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template <typename Point3d>
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struct plane
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{
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typedef typename coordinate_type<Point3d>::type coord_t;
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// not normalized
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plane(Point3d const& p1, Point3d const& p2, Spheroid const& spheroid)
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: m_spheroid(spheroid)
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{
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formula::experimental_elliptic_plane(p1, p2, origin, normal, m_spheroid);
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}
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int side_value(Point3d const& pt) const
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{
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return formula::elliptic_side_value(origin, normal, pt);
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}
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coord_t cos_angle_between(Point3d const& p1, Point3d const& p2) const
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{
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Point3d const v1 = normalized_vec(p1);
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Point3d const v2 = normalized_vec(p2);
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return dot_product(v1, v2);
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}
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coord_t cos_angle_between(Point3d const& p1, Point3d const& p2, bool & is_forward) const
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{
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coord_t const c0 = 0;
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Point3d const v1 = normalized_vec(p1);
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Point3d const v2 = normalized_vec(p2);
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is_forward = dot_product(normal, cross_product(v1, v2)) >= c0;
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return dot_product(v1, v2);
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}
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Point3d origin;
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Point3d normal;
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private:
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Point3d normalized_vec(Point3d const& p) const
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{
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Point3d v = p;
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subtract_point(v, origin);
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detail::vec_normalize(v);
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return v;
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}
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Spheroid const& m_spheroid;
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};
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template <typename Point3d>
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plane<Point3d> get_plane(Point3d const& p1, Point3d const& p2) const
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{
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return plane<Point3d>(p1, p2, m_spheroid);
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}
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template <typename Point3d>
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bool intersection_points(plane<Point3d> const& plane1,
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plane<Point3d> const& plane2,
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Point3d & ip1, Point3d & ip2) const
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{
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return formula::planes_spheroid_intersection(plane1.origin, plane1.normal,
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plane2.origin, plane2.normal,
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ip1, ip2, m_spheroid);
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}
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private:
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Spheroid m_spheroid;
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};
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template
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<
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typename Spheroid = srs::spheroid<double>,
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typename CalculationType = void
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>
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struct great_elliptic_segments
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: ecef_segments
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<
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great_elliptic_segments_calc_policy<Spheroid>,
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CalculationType
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>
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{};
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template
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<
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typename Spheroid = srs::spheroid<double>,
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typename CalculationType = void
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>
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struct experimental_elliptic_segments
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: ecef_segments
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<
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experimental_elliptic_segments_calc_policy<Spheroid>,
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CalculationType
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>
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{};
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}} // namespace strategy::intersection
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_STRATEGIES_GEOGRAPHIC_INTERSECTION_ELLIPTIC_HPP
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