QwtSplineCurveFitter Class Reference

A curve fitter using cubic splines. More...

#include <qwt_curve_fitter.h>

Inheritance diagram for QwtSplineCurveFitter:
Inheritance graph
[legend]

List of all members.

Public Types

enum  FitMode {
  Auto,
  Spline,
  ParametricSpline
}

Public Member Functions

 QwtSplineCurveFitter ()
virtual ~QwtSplineCurveFitter ()
void setFitMode (FitMode)
FitMode fitMode () const
void setSpline (const QwtSpline &)
const QwtSplinespline () const
QwtSplinespline ()
void setSplineSize (int size)
int splineSize () const
virtual QPolygonF fitCurve (const QPolygonF &) const

Detailed Description

A curve fitter using cubic splines.


Member Enumeration Documentation

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

The default setting is Auto

See also:
setFitMode(), FitMode()

Constructor & Destructor Documentation

QwtSplineCurveFitter::QwtSplineCurveFitter (  ) 

Constructor.

QwtSplineCurveFitter::~QwtSplineCurveFitter (  )  [virtual]

Destructor.


Member Function Documentation

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

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

Parameters:
points Series of data points
Returns:
Curve points

Implements QwtCurveFitter.

QwtSplineCurveFitter::FitMode QwtSplineCurveFitter::fitMode (  )  const
Returns:
Mode representing a spline algorithm
See also:
setFitMode()
void QwtSplineCurveFitter::setFitMode ( FitMode  mode  ) 

Select the algorithm used for building the spline

Parameters:
mode Mode representing a spline algorithm
See also:
fitMode()
void QwtSplineCurveFitter::setSpline ( const QwtSpline spline  ) 

Assign a spline

Parameters:
spline Spline
See also:
spline()
void QwtSplineCurveFitter::setSplineSize ( int  splineSize  ) 

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

Parameters:
splineSize Spline size
See also:
splineSize()
QwtSpline & QwtSplineCurveFitter::spline (  ) 
Returns:
Spline
See also:
setSpline()
const QwtSpline & QwtSplineCurveFitter::spline (  )  const
Returns:
Spline
See also:
setSpline()
int QwtSplineCurveFitter::splineSize (  )  const
Returns:
Spline size
See also:
setSplineSize()
Generated on Sun Nov 21 12:01:52 2010 for Qwt User's Guide by  doxygen 1.6.3