QwtCurveFitter - Man Page

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.

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.