Abstract base class for curve fitting algorithms . More...

#include <qwt_curve_fitter.h>

Inheritance diagram for QwtCurveFitter:

Public Types
enum	Mode { Polygon , Path }

Public Member Functions
virtual	~QwtCurveFitter ()
	Destructor .

Mode	mode () const
	Get the preferred fitting mode.

virtual QPolygonF	fitCurve (const QPolygonF &polygon) const =0

virtual QPainterPath	fitCurvePath (const QPolygonF &polygon) const =0

Protected Member Functions
	QwtCurveFitter (Mode mode)
	Constructor.

Detailed Description

Abstract base class for curve fitting algorithms .

Member Enumeration Documentation

◆ Mode

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

Constructor & Destructor Documentation

◆ ~QwtCurveFitter()

QwtCurveFitter::~QwtCurveFitter ( )

virtual

Destructor .

◆ QwtCurveFitter()

QwtCurveFitter::QwtCurveFitter ( Mode mode )

explicitprotected

Constructor.

Member Function Documentation

◆ fitCurve()

virtual QPolygonF QwtCurveFitter::fitCurve ( const QPolygonF & polygon ) const

pure virtual

Implemented in QwtPolarFitter, QwtSplineCurveFitter, and QwtWeedingCurveFitter.

◆ fitCurvePath()

virtual QPainterPath QwtCurveFitter::fitCurvePath ( const QPolygonF & polygon ) const

pure virtual

Implemented in QwtPolarFitter, QwtSplineCurveFitter, and QwtWeedingCurveFitter.

◆ mode()

QwtCurveFitter::Mode QwtCurveFitter::mode ( ) const

Get the preferred fitting mode.

The documentation for this class was generated from the following files:

/home/runner/work/QWT/QWT/src/plot/qwt_curve_fitter.h
/home/runner/work/QWT/QWT/src/plot/qwt_curve_fitter.cpp

Public Types

Public Member Functions

Protected Member Functions