/usr/include/boost/geometry/strategies/spherical
Edit: /usr/include/boost/geometry/strategies/spherical/line_interpolate.hpp (3131B)
// Boost.Geometry
// Copyright (c) 2018, 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_SPHERICAL_LINE_INTERPOLATE_HPP
#define BOOST_GEOMETRY_STRATEGIES_SPHERICAL_LINE_INTERPOLATE_HPP
#include
#include
#include
#include
#include
#include
#include
#include
#include
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
>
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
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 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
{
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