QwtSplineCurveFitter Class Reference

A curve fitter using a spline interpolation. More...

#include <qwt_spline_curve_fitter.h>

Inheritance diagram for QwtSplineCurveFitter:

Public Member Functions
	QwtSplineCurveFitter ()
	Constructor.
virtual	~QwtSplineCurveFitter ()
	Destructor.
void	setSpline (QwtSpline *)
const QwtSpline *	spline () const
QwtSpline *	spline ()
virtual QPolygonF	fitCurve (const QPolygonF &) const override
virtual QPainterPath	fitCurvePath (const QPolygonF &) const override
Public Member Functions inherited from QwtCurveFitter
virtual	~QwtCurveFitter ()
	Destructor.
Mode	mode () const

Additional Inherited Members
Public Types inherited from QwtCurveFitter
enum	Mode { Polygon , Path }
	Preferred mode of the fitting algorithm. More...
Protected Member Functions inherited from QwtCurveFitter
	QwtCurveFitter (Mode mode)

Detailed Description

A curve fitter using a spline interpolation.

The default setting for the spline is a cardinal spline with uniform parametrization.

See also

QwtSpline, QwtSplineLocal

Definition at line 25 of file qwt_spline_curve_fitter.h.

Member Function Documentation

fitCurve()

QPolygonF QwtSplineCurveFitter::fitCurve ( const QPolygonF &  points ) const

overridevirtual

Find a curve which has the best fit to a series of data points

Parameters

points

Series of data points

Returns

Fitted Curve

See also

fitCurvePath()

Implements QwtCurveFitter.

Definition at line 75 of file qwt_spline_curve_fitter.cpp.

fitCurvePath()

QPainterPath QwtSplineCurveFitter::fitCurvePath ( const QPolygonF &  points ) const

overridevirtual

Find a curve path which has the best fit to a series of data points

Parameters

points

Series of data points

Returns

Fitted Curve

See also

fitCurve()

Implements QwtCurveFitter.

Definition at line 94 of file qwt_spline_curve_fitter.cpp.

setSpline()

void QwtSplineCurveFitter::setSpline

(

QwtSpline *

spline

)

Assign a spline

The spline needs to be allocated by new and will be deleted in the destructor of the fitter.

Parameters

spline

Spline

See also

spline()

Definition at line 40 of file qwt_spline_curve_fitter.cpp.

spline() [1/2]

QwtSpline * QwtSplineCurveFitter::spline

(

)

Returns

Spline

See also

setSpline()

Definition at line 62 of file qwt_spline_curve_fitter.cpp.

spline() [2/2]

const QwtSpline * QwtSplineCurveFitter::spline

(

)

const

Returns

Spline

See also

setSpline()

Definition at line 53 of file qwt_spline_curve_fitter.cpp.