样条插值基类更多...

#include <qwt_spline.h>

类 QwtSplineInterpolating 继承关系图:

Public 成员函数
	QwtSplineInterpolating ()
	构造函数

virtual	~QwtSplineInterpolating ()
	析构函数

virtual QPolygonF	equidistantPolygon (const QPolygonF &, double distance, bool withNodes) const
	查找具有"等距"点的插值多边形

virtual QPolygonF	polygon (const QPolygonF &, double tolerance) const override
	用多边形插值曲线

virtual QPainterPath	painterPath (const QPolygonF &) const override
	使用贝塞尔曲线插值曲线

virtual QVector< QLineF >	bezierControlLines (const QPolygonF &) const =0
	Interpolate a curve with Bezier curves

Public 成员函数继承自 QwtSpline
	QwtSpline ()
	Constructor

virtual	~QwtSpline ()
	Destructor

void	setParametrization (int type)
	Set parametrization by type

void	setParametrization (QwtSplineParametrization *)
	Set parametrization object

const QwtSplineParametrization *	parametrization () const
	Get parametrization

void	setBoundaryType (BoundaryType)
	Set boundary type

BoundaryType	boundaryType () const
	Get boundary type

void	setBoundaryValue (BoundaryPosition, double value)
	Set boundary value

double	boundaryValue (BoundaryPosition) const
	Get boundary value

void	setBoundaryCondition (BoundaryPosition, int condition)
	Set boundary condition

int	boundaryCondition (BoundaryPosition) const
	Get boundary condition

void	setBoundaryConditions (int condition, double valueBegin=0.0, double valueEnd=0.0)
	Set boundary conditions for both ends

virtual uint	locality () const
	Get locality (number of points used for calculation)

额外继承的成员函数
Public 类型继承自 QwtSpline
enum	BoundaryType { ConditionalBoundaries , PeriodicPolygon , ClosedPolygon }
	指定样条端点处的边界类型更多...

enum	BoundaryPosition { AtBeginning , AtEnd }
	边界条件的位置更多...

enum	BoundaryCondition { Clamped1 , Clamped2 , Clamped3 , LinearRunout }
	边界条件更多...

详细描述

样条插值基类

构造及析构函数说明

◆ QwtSplineInterpolating()

QwtSplineInterpolating::QwtSplineInterpolating ( )

构造函数

◆ ~QwtSplineInterpolating()

QwtSplineInterpolating::~QwtSplineInterpolating ( )

virtual

析构函数

成员函数说明

◆ bezierControlLines()

QVector< QLineF > QwtSplineInterpolating::bezierControlLines ( const QPolygonF & points ) const

pure virtual

Interpolate a curve with Bezier curves

Interpolates a polygon piecewise with cubic Bezier curves and returns the 2 control points of each curve as QLineF.

参数

points Control points

返回: Control points of the interpolating Bezier curves

在 QwtSplineC1, QwtSplineC2, QwtSplineLocal, QwtSplinePleasing , 以及 QwtSplineCubic 内被实现.

◆ equidistantPolygon()

QPolygonF QwtSplineInterpolating::equidistantPolygon	(	const QPolygonF &	points,
		double	distance,
		bool	withNodes
	)		const

virtual

查找具有"等距"点的插值多边形

被 QwtSplineC1 , 以及 QwtSplineC2 重载.

◆ painterPath()

QPainterPath QwtSplineInterpolating::painterPath ( const QPolygonF & points ) const

overridevirtual

使用贝塞尔曲线插值曲线

实现了 QwtSpline.

被 QwtSplineC1, QwtSplineC2, QwtSplineCubic, QwtSplineLocal , 以及 QwtSplinePleasing 重载.

◆ polygon()

QPolygonF QwtSplineInterpolating::polygon	(	const QPolygonF &	points,
		double	tolerance
	)		const

overridevirtual

用多边形插值曲线

重载 QwtSpline .

该类的文档由以下文件生成:

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

Public 成员函数

额外继承的成员函数