Public Types¶

enum FitMode { Auto, Spline, ParametricSpline }

Public Member Functions¶

QwtSplineCurveFitter ()
Constructor. virtual ~QwtSplineCurveFitter ()
Destructor. void setFitMode (FitMode)
FitMode fitMode () const
void setSpline (const QwtSpline &)
const QwtSpline & spline () const
QwtSpline & spline ()
void setSplineSize (int)
int splineSize () const
virtual QPolygonF fitCurve (const QPolygonF &) const

Additional Inherited Members¶

enum QwtSplineCurveFitter::FitMode¶

Spline type The default setting is Auto

See also:

Enumerator

Auto

Use the default spline algorithm for polygons with increasing x values ( p[i-1] < p[i] ), otherwise use a parametric spline algorithm.

Spline

Use a default spline algorithm.

ParametricSpline

Use a parametric spline algorithm.

QPolygonF QwtSplineCurveFitter::fitCurve (const QPolygonF & points) const [virtual]¶

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

Parameters:

Returns:

Implements QwtCurveFitter.

QwtSplineCurveFitter::FitMode QwtSplineCurveFitter::fitMode () const¶

Returns:

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void QwtSplineCurveFitter::setFitMode (FitMode mode)¶

Select the algorithm used for building the spline

Parameters:

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void QwtSplineCurveFitter::setSpline (const QwtSpline & spline)¶

Assign a spline

Parameters:

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void QwtSplineCurveFitter::setSplineSize (int splineSize)¶

Assign a spline size ( has to be at least 10 points )

Parameters:

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const QwtSpline & QwtSplineCurveFitter::spline () const¶

Returns:

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QwtSpline & QwtSplineCurveFitter::spline ()¶

Returns:

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int QwtSplineCurveFitter::splineSize () const¶

Returns:

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