FM / spherical

/usr/include/boost/geometry/strategies/spherical/

/usr/include/boost/geometry/strategies/spherical

Name	Size	Mode	Actions
area.hpp	4959	0644	edit dl rm
azimuth.hpp	3489	0644	edit dl rm
compare.hpp	9997	0644	edit dl rm
densify.hpp	4079	0644	edit dl rm
disjoint_box_box.hpp	4633	0644	edit dl rm
disjoint_segment_box.hpp	3588	0644	edit dl rm
distance_cross_track.hpp	27455	0644	edit dl rm
distance_cross_track_box_box.hpp	15443	0644	edit dl rm
distance_cross_track_point_box.hpp	13202	0644	edit dl rm
distance_haversine.hpp	9669	0644	edit dl rm
distance_segment_box.hpp	14187	0644	edit dl rm
envelope.hpp	4370	0644	edit dl rm
envelope_box.hpp	2130	0644	edit dl rm
envelope_multipoint.hpp	13234	0644	edit dl rm
envelope_point.hpp	3397	0644	edit dl rm
envelope_segment.hpp	14133	0644	edit dl rm
expand_box.hpp	5203	0644	edit dl rm
expand_point.hpp	8242	0644	edit dl rm
expand_segment.hpp	3435	0644	edit dl rm
get_radius.hpp	2109	0644	edit dl rm
index.hpp	6805	0644	edit dl rm
intersection.hpp	39856	0644	edit dl rm
io.hpp	1977	0644	edit dl rm
line_interpolate.hpp	3131	0644	edit dl rm
point_in_point.hpp	5771	0644	edit dl rm
point_in_poly_winding.hpp	21516	0644	edit dl rm
point_order.hpp	3787	0644	edit dl rm
side_by_cross_track.hpp	2864	0644	edit dl rm
ssf.hpp	5038	0644	edit dl rm

Edit: /usr/include/boost/geometry/strategies/spherical/line_interpolate.hpp (3131B)

// Boost.Geometry

// 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_SPHERICAL_LINE_INTERPOLATE_HPP
#define BOOST_GEOMETRY_STRATEGIES_SPHERICAL_LINE_INTERPOLATE_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/formulas/interpolate_point_spherical.hpp>
#include <boost/geometry/srs/spheroid.hpp>
#include <boost/geometry/strategies/line_interpolate.hpp>
#include <boost/geometry/strategies/spherical/distance_haversine.hpp>
#include <boost/geometry/util/select_calculation_type.hpp>

namespace boost { namespace geometry
{

namespace strategy { namespace line_interpolate
{

/*!
\brief Interpolate point on a spherical segment.
\ingroup strategies
\tparam CalculationType \tparam_calculation
\tparam DistanceStrategy The underlying point-point distance strategy

\qbk{
[heading See also]
\* [link geometry.reference.algorithms.line_interpolate.line_interpolate_4_with_strategy line_interpolate (with strategy)]
}

*/
template
<
    typename CalculationType = void,
    typename DistanceStrategy = distance::haversine<double, CalculationType>
>
class spherical
{
public:

typedef typename DistanceStrategy::radius_type radius_type;

inline spherical()
    {}

explicit inline spherical(typename DistanceStrategy::radius_type const& r)
        : m_strategy(r)
    {}

inline spherical(DistanceStrategy const& s)
        : m_strategy(s)
    {}

// point-point strategy getters
    struct distance_pp_strategy
    {
        typedef DistanceStrategy type;
    };

inline typename distance_pp_strategy::type get_distance_pp_strategy() const
    {
        return m_strategy;
    }

template <typename Point, typename Fraction, typename Distance>
    inline void apply(Point const& p0,
                      Point const& p1,
                      Fraction const& fraction,
                      Point & p,
                      Distance const&) const
    {
        typedef typename select_calculation_type_alt
        <
            CalculationType,
            Point
        >::type calc_t;

formula::interpolate_point_spherical<calc_t> formula;

calc_t angle01;
        formula.compute_angle(p0, p1, angle01);
        formula.compute_axis(p0, angle01);

calc_t a = angle01 * fraction;
        formula.compute_point(a, p);
    }
private :
    DistanceStrategy m_strategy;
};

#ifndef DOXYGEN_NO_STRATEGY_SPECIALIZATIONS
namespace services
{

template <>
struct default_strategy<spherical_equatorial_tag>
{
    typedef strategy::line_interpolate::spherical<> type;
};

} // namespace services
#endif // DOXYGEN_NO_STRATEGY_SPECIALIZATIONS

}} // namespace strategy::line_interpolate

}} // namespace boost::geometry

#endif // BOOST_GEOMETRY_STRATEGIES_SPHERICAL_LINE_INTERPOLATE_HPP

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