QwtCurveFitter(3)              Qwt User's Guide              QwtCurveFitter(3)

NAME
       QwtCurveFitter - Abstract base class for a curve fitter.


SYNOPSIS
       #include <qwt_curve_fitter.h>

       Inherited by QwtPolarFitter, QwtSplineCurveFitter, and
       QwtWeedingCurveFitter.

   Public Types
       enum Mode { Polygon, Path }
           Preferred mode of the fitting algorithm.

   Public Member Functions
       virtual ~QwtCurveFitter ()
           Destructor.
       Mode mode () const
       virtual QPolygonF fitCurve (const QPolygonF &polygon) const =0
       virtual QPainterPath fitCurvePath (const QPolygonF &polygon) const =0

   Protected Member Functions
       QwtCurveFitter (Mode mode)

Detailed Description
       Abstract base class for a curve fitter.

       Definition at line 21 of file qwt_curve_fitter.h.

Member Enumeration Documentation
   enum QwtCurveFitter::Mode
       Preferred mode of the fitting algorithm. Even if a QPainterPath can
       always be created from a QPolygonF the overhead of the conversion can
       be avoided by indicating the preference of the implementation to the
       application code.

       Enumerator

       Polygon
              The fitting algorithm creates a polygon - the implementation of
              fitCurvePath() simply wraps the polygon into a path.

       See also
           QwtWeedingCurveFitter

       Path   The fitting algorithm creates a painter path - the
              implementation of fitCurve() extracts a polygon from the path.

       See also
           QwtSplineCurveFitter

       Definition at line 32 of file qwt_curve_fitter.h.

Constructor & Destructor Documentation
   QwtCurveFitter::QwtCurveFitter (Mode mode) [explicit],  [protected]
       Constructor

       Parameters
           mode Preferred fitting mode

       Definition at line 16 of file qwt_curve_fitter.cpp.

Member Function Documentation
   virtual QPolygonF QwtCurveFitter::fitCurve (const QPolygonF & polygon)
       const [pure virtual]
       Find a curve which has the best fit to a series of data points

       Parameters
           polygon Series of data points

       Returns
           Curve points

       See also
           fitCurvePath()

       Implemented in QwtWeedingCurveFitter, QwtSplineCurveFitter, and
       QwtPolarFitter.

   virtual QPainterPath QwtCurveFitter::fitCurvePath (const QPolygonF &
       polygon) const [pure virtual]
       Find a curve path which has the best fit to a series of data points

       Parameters
           polygon Series of data points

       Returns
           Curve path

       See also
           fitCurve()

       Implemented in QwtWeedingCurveFitter, QwtSplineCurveFitter, and
       QwtPolarFitter.

   QwtCurveFitter::Mode QwtCurveFitter::mode () const
       Returns
           Preferred fitting mode

       Definition at line 27 of file qwt_curve_fitter.cpp.


Author
       Generated automatically by Doxygen for Qwt User's Guide from the source
       code.

Version 6.2.0                   Sun Jul 18 2021              QwtCurveFitter(3)