Class implements the Steffen interpolation. More...

#include <steffenInterpolation.hpp>

Inheritance diagram for julian::SteffenInterpolation:

Public Member Functions
virtual double	operator() (const std::vector< double > &, const std::vector< double > &, const double &) const
	Performs interpolation. More...

virtual SteffenInterpolation *	clone () const
	Virtual copy constructor. More...

virtual std::string	info () const
	Name of a class. More...

virtual unsigned int	getMinSize () const
	return the minimum number of points required by the interpolation More...

Public Member Functions inherited from julian::Interpolation
	Interpolation ()
	Constructor. More...

virtual	~Interpolation ()
	Destructor. More...

Private Member Functions
template<class Archive >
void	serialize (Archive &, const unsigned int)
	interface used by Boost serialization library More...

Friends
class	boost::serialization::access

Detailed Description

Class implements the Steffen interpolation.

Steffen’s method guarantees the monotonicity of the interpolating function between the given data points. Therefore, minima and maxima can only occur exactly at the data points, and there can never be spurious oscillations between data points. The interpolated function is piecewise cubic in each interval. The resulting curve and its first derivative are guaranteed to be continuous, but the second derivative may be discontinuous.