Abstract base class for curve fitting algorithms 更多...

#include <qwt_curve_fitter.h>

类 QwtCurveFitter 继承关系图:

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

Public 成员函数
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 成员函数
	QwtCurveFitter (Mode mode)
	Constructor

详细描述

Abstract base class for curve fitting algorithms

成员枚举类型说明

◆ 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.

枚举值

Polygon

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

参见: QwtWeedingCurveFitter

Path

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

参见: QwtSplineCurveFitter

构造及析构函数说明

◆ QwtCurveFitter()

QwtCurveFitter::QwtCurveFitter ( Mode mode )

explicitprotected

Constructor

参数

mode	Preferred fitting mode

成员函数说明

◆ fitCurve()

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

pure virtual

在 QwtPolarFitter, QwtSplineCurveFitter , 以及 QwtWeedingCurveFitter 内被实现.

◆ fitCurvePath()

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

pure virtual

在 QwtPolarFitter, QwtSplineCurveFitter , 以及 QwtWeedingCurveFitter 内被实现.

◆ mode()

QwtCurveFitter::Mode QwtCurveFitter::mode ( ) const

Get the preferred fitting mode

返回: Preferred fitting mode

该类的文档由以下文件生成:

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

Public 类型

Public 成员函数

Protected 成员函数