表示一系列样本的绘图项的基类更多...

#include <qwt_plot_seriesitem.h>

类 QwtPlotSeriesItem 继承关系图:

类
class	PrivateData

Public 成员函数
	QwtPlotSeriesItem (const QString &title=QString())
	构造函数

	QwtPlotSeriesItem (const QwtText &title)
	构造函数

virtual	~QwtPlotSeriesItem ()
	析构函数

void	setOrientation (Qt::Orientation)
	设置绘图项的方向

Qt::Orientation	orientation () const
	获取绘图项的方向

virtual void	draw (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect) const override
	绘制完整系列

virtual void	drawSeries (QPainter *painter, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, int from, int to) const =0
	绘制样本的子集

virtual QRectF	boundingRect () const override
	获取边界矩形

virtual void	updateScaleDiv (const QwtScaleDiv &, const QwtScaleDiv &) override
	更新刻度划分

Public 成员函数继承自 QwtPlotItem
	QwtPlotItem ()
	Default constructor

	QwtPlotItem (const QString &title)
	Constructor with title as QString

	QwtPlotItem (const QwtText &title)
	Constructor with title as QwtText

virtual	~QwtPlotItem ()
	Destructor

void	attach (QwtPlot *plot)
	Attach the item to a plot

void	detach ()
	Detach the item from the plot

QwtPlot *	plot () const
	Get the plot the item is attached to

void	setTitle (const QString &title)
	Set the title using a QString

void	setTitle (const QwtText &title)
	Set the title using a QwtText

const QwtText &	title () const
	Get the title

virtual int	rtti () const
	Runtime type information

void	setItemAttribute (ItemAttribute, bool on=true)
	Set an item attribute

bool	testItemAttribute (ItemAttribute) const
	Test an item attribute

void	setItemInterest (ItemInterest, bool on=true)
	Set an item interest

bool	testItemInterest (ItemInterest) const
	Test an item interest

void	setRenderHint (RenderHint, bool on=true)
	Set a render hint

bool	testRenderHint (RenderHint) const
	Test a render hint

void	setRenderThreadCount (uint numThreads)
	Set the number of render threads

uint	renderThreadCount () const
	Get the number of render threads

void	setLegendIconSize (const QSize &)
	Set the legend icon size

QSize	legendIconSize () const
	Get the legend icon size

double	z () const
	Get the z-value

void	setZ (double z)
	Set the z-value

void	show ()
	Show the item

void	hide ()
	Hide the item

virtual void	setVisible (bool)
	Set the visibility

bool	isVisible () const
	Check if the item is visible

void	setAxes (QwtAxisId xAxis, QwtAxisId yAxis)
	Set both axes

void	setXAxis (QwtAxisId)
	Set the x-axis

QwtAxisId	xAxis () const
	Get the x-axis

void	setYAxis (QwtAxisId)
	Set the y-axis

QwtAxisId	yAxis () const
	Get the y-axis

virtual void	itemChanged ()
	Notify the plot that the item has changed

virtual void	legendChanged ()
	Notify the item that the legend has changed

virtual void	getCanvasMarginHint (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, double &left, double &top, double &right, double &bottom) const
	Get margin hints for the canvas

virtual void	updateLegend (const QwtPlotItem *, const QList< QwtLegendData > &)
	Update the item with changes of the legend

QRectF	scaleRect (const QwtScaleMap &, const QwtScaleMap &) const
	Calculate the scale rectangle

QRectF	paintRect (const QwtScaleMap &, const QwtScaleMap &) const
	Calculate the paint rectangle

virtual QList< QwtLegendData >	legendData () const
	Return legend data

virtual QwtGraphic	legendIcon (int index, const QSizeF &) const
	Return a legend icon

Protected 成员函数
virtual void	dataChanged () override
	dataChanged() indicates, that the series has been changed.

Protected 成员函数继承自 QwtPlotItem
QwtGraphic	defaultIcon (const QBrush &, const QSizeF &) const
	Create a default icon

Protected 成员函数继承自 QwtAbstractSeriesStore
virtual void	setRectOfInterest (const QRectF &)=0
	Set a the "rectangle of interest" for the stored series

virtual QRectF	dataRect () const =0

virtual size_t	dataSize () const =0

额外继承的成员函数
Public 类型继承自 QwtPlotItem
enum	RttiValues { Rtti_PlotItem = 0 , Rtti_PlotGrid , Rtti_PlotScale , Rtti_PlotLegend , Rtti_PlotMarker , Rtti_PlotCurve , Rtti_PlotSpectroCurve , Rtti_PlotIntervalCurve , Rtti_PlotHistogram , Rtti_PlotSpectrogram , Rtti_PlotGraphic , Rtti_PlotTradingCurve , Rtti_PlotBarChart , Rtti_PlotMultiBarChart , Rtti_PlotShape , Rtti_PlotTextLabel , Rtti_PlotZone , Rtti_PlotVectorField , Rtti_PlotArrowMarker , Rtti_PlotBoxChart , Rtti_PlotUserItem = 1000 }
	运行时类型信息更多...

enum	ItemAttribute { Legend = 0x01 , AutoScale = 0x02 , Margins = 0x04 }
	绘图项属性更多...

enum	ItemInterest { ScaleInterest = 0x01 , LegendInterest = 0x02 }
	绘图项关注的事件类型更多...

enum	RenderHint { RenderAntialiased = 0x1 }
	渲染提示更多...

详细描述

表示一系列样本的绘图项的基类

构造及析构函数说明

◆ QwtPlotSeriesItem() [1/2]

QwtPlotSeriesItem::QwtPlotSeriesItem ( const QString & title = QString() )

explicit

构造函数

◆ QwtPlotSeriesItem() [2/2]

QwtPlotSeriesItem::QwtPlotSeriesItem ( const QwtText & title )

explicit

构造函数

◆ ~QwtPlotSeriesItem()

QwtPlotSeriesItem::~QwtPlotSeriesItem ( )

virtual

析构函数

成员函数说明

◆ boundingRect()

QRectF QwtPlotSeriesItem::boundingRect ( ) const

overridevirtual

获取边界矩形

重载 QwtPlotItem .

被 QwtPlotBarChart, QwtPlotBoxChart, QwtPlotHistogram, QwtPlotIntervalCurve, QwtPlotMultiBarChart, QwtPlotTradingCurve , 以及 QwtPlotVectorField 重载.

◆ dataChanged()

void QwtPlotSeriesItem::dataChanged ( )

overrideprotectedvirtual

dataChanged() indicates, that the series has been changed.

实现了 QwtAbstractSeriesStore.

被 QwtPlotVectorField 重载.

◆ draw()

void QwtPlotSeriesItem::draw	(	QPainter *	painter,
		const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QRectF &	canvasRect
	)		const

overridevirtual

绘制完整系列

实现了 QwtPlotItem.

◆ drawSeries()

virtual void QwtPlotSeriesItem::drawSeries	(	QPainter *	painter,
		const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QRectF &	canvasRect,
		int	from,
		int	to
	)		const

pure virtual

绘制样本的子集

在 QwtPlotBarChart, QwtPlotBoxChart, QwtPlotCurve, QwtPlotHistogram, QwtPlotIntervalCurve, QwtPlotMultiBarChart, QwtPlotSpectroCurve, QwtPlotTradingCurve , 以及 QwtPlotVectorField 内被实现.

◆ orientation()

Qt::Orientation QwtPlotSeriesItem::orientation ( ) const

获取绘图项的方向

◆ setOrientation()

void QwtPlotSeriesItem::setOrientation ( Qt::Orientation orientation )

设置绘图项的方向

◆ updateScaleDiv()

void QwtPlotSeriesItem::updateScaleDiv	(	const QwtScaleDiv &	xScaleDiv,
		const QwtScaleDiv &	yScaleDiv
	)

overridevirtual

更新刻度划分

重载 QwtPlotItem .

该类的文档由以下文件生成:

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

类

Public 成员函数

Protected 成员函数

额外继承的成员函数

详细描述

构造及析构函数说明

◆ QwtPlotSeriesItem() [1/2]

◆ QwtPlotSeriesItem() [2/2]

◆ ~QwtPlotSeriesItem()

成员函数说明

◆ boundingRect()

◆ dataChanged()

◆ draw()

◆ drawSeries()

◆ orientation()

◆ setOrientation()

◆ updateScaleDiv()