显示极坐标系的绘图控件更多...

#include <qwt_polar_plot.h>

类 QwtPolarPlot 继承关系图:

类
class	PrivateData

Public 类型
enum	LegendPosition { LeftLegend , RightLegend , BottomLegend , TopLegend , ExternalLegend }
	图例相对于画布的位置更多...

Public 槽
virtual void	replot ()
	Replot the plot

void	autoRefresh ()
	Auto refresh the plot

void	setAzimuthOrigin (double)
	Set the azimuth origin

信号
void	itemAttached (QwtPolarItem *plotItem, bool on)
	A signal indicating, that an item has been attached/detached 表示绘图项已附加/分离的信号

void	legendDataChanged (const QVariant &itemInfo, const QList< QwtLegendData > &data)
	A signal with the attributes how to update the legend entries for a plot item 包含如何更新绘图项图例条目属性的信号

void	layoutChanged ()
	A signal that is emitted, whenever the layout of the plot has been recalculated 当绘图的布局重新计算时发出的信号

Public 成员函数
	QwtPolarPlot (QWidget *parent=nullptr)
	Constructor

	QwtPolarPlot (const QwtText &title, QWidget *parent=nullptr)
	Constructor with title

virtual	~QwtPolarPlot ()
	Destructor

void	setTitle (const QString &)
	Set the title

void	setTitle (const QwtText &)
	Set the title

QwtText	title () const
	Get the title

QwtTextLabel *	titleLabel ()
	Get the title label

const QwtTextLabel *	titleLabel () const
	Get the title label (const version)

void	setAutoReplot (bool tf=true)
	Set auto replot

bool	autoReplot () const
	Get auto replot

void	setAutoScale (int scaleId)
	Set auto scale for a scale

bool	hasAutoScale (int scaleId) const
	Check if a scale has auto scale

void	setScaleMaxMinor (int scaleId, int maxMinor)
	Set the maximum number of minor ticks for a scale

int	scaleMaxMinor (int scaleId) const
	Get the maximum number of minor ticks for a scale

int	scaleMaxMajor (int scaleId) const
	Get the maximum number of major ticks for a scale

void	setScaleMaxMajor (int scaleId, int maxMajor)
	Set the maximum number of major ticks for a scale

QwtScaleEngine *	scaleEngine (int scaleId)
	Get the scale engine for a scale

const QwtScaleEngine *	scaleEngine (int scaleId) const
	Get the scale engine for a scale (const version)

void	setScaleEngine (int scaleId, QwtScaleEngine *)
	Set the scale engine for a scale

void	setScale (int scaleId, double min, double max, double step=0)
	Set the scale for a scale

void	setScaleDiv (int scaleId, const QwtScaleDiv &)
	Set the scale division for a scale

const QwtScaleDiv *	scaleDiv (int scaleId) const
	Get the scale division for a scale (const version)

QwtScaleDiv *	scaleDiv (int scaleId)
	Get the scale division for a scale

QwtScaleMap	scaleMap (int scaleId, double radius) const
	Get the scale map for a scale with radius

QwtScaleMap	scaleMap (int scaleId) const
	Get the scale map for a scale

void	updateScale (int scaleId)
	Update a scale

double	azimuthOrigin () const
	Get the azimuth origin

void	zoom (const QwtPointPolar &, double factor)
	Zoom to a position with a factor

void	unzoom ()
	Unzoom the plot

QwtPointPolar	zoomPos () const
	Get the zoom position

double	zoomFactor () const
	Get the zoom factor

QwtPolarCanvas *	canvas ()
	Get the canvas

const QwtPolarCanvas *	canvas () const
	Get the canvas (const version)

void	setPlotBackground (const QBrush &c)
	Set the plot background

const QBrush &	plotBackground () const
	Get the plot background

virtual void	drawCanvas (QPainter *, const QRectF &) const
	Draw the canvas

void	insertLegend (QwtAbstractLegend *, LegendPosition=RightLegend, double ratio=-1.0)
	Insert a legend

QwtAbstractLegend *	legend ()
	Get the legend

const QwtAbstractLegend *	legend () const
	Get the legend (const version)

void	updateLegend ()
	Update the legend

void	updateLegend (const QwtPolarItem *)
	Update the legend for an item

QwtPolarLayout *	plotLayout ()
	Get the plot layout

const QwtPolarLayout *	plotLayout () const
	Get the plot layout (const version)

QwtInterval	visibleInterval () const
	Get the visible interval

QRectF	plotRect () const
	Get the plot rectangle

QRectF	plotRect (const QRectF &) const
	Get the plot rectangle for a given rectangle

int	plotMarginHint () const
	Get the plot margin hint

virtual QVariant	itemToInfo (QwtPolarItem *) const
	Convert an item to info

virtual QwtPolarItem *	infoToItem (const QVariant &) const
	Convert info to an item

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

	~QwtPolarItemDict ()
	Destructor

void	setAutoDelete (bool)
	Set auto delete

bool	autoDelete () const
	Get auto delete

const QwtPolarItemList &	itemList () const
	Get the item list

void	detachItems (int rtti=QwtPolarItem::Rtti_PolarItem, bool autoDelete=true)
	Detach items

Protected 成员函数
virtual bool	event (QEvent *) override
	Handle events

virtual void	resizeEvent (QResizeEvent *) override
	Handle resize events

virtual void	updateLayout ()
	Update the layout

virtual void	drawItems (QPainter *painter, const QwtScaleMap &radialMap, const QwtScaleMap &azimuthMap, const QPointF &pole, double radius, const QRectF &canvasRect) const
	Draw items

Protected 成员函数继承自 QwtPolarItemDict
void	insertItem (QwtPolarItem *)
	Insert an item

void	removeItem (QwtPolarItem *)
	Remove an item

属性
QBrush	plotBackground

double	azimuthOrigin

友元
class	QwtPolarItem

详细描述

显示极坐标系的绘图控件

成员枚举类型说明

◆ LegendPosition

enum QwtPolarPlot::LegendPosition

图例相对于画布的位置

枚举值
LeftLegend	The legend will be left from the canvas
RightLegend	The legend will be right from the canvas
BottomLegend	The legend will be below the canvas
TopLegend	The legend will be between canvas and title
ExternalLegend	外部意味着只有图例的内容由 QwtPlot 处理，而不是其几何形状。如果应用程序希望在外部窗口（或在画布上）放置图例，这可能很有用。注解图例不由 QwtPolarRenderer 绘制

构造及析构函数说明

◆ QwtPolarPlot() [1/2]

QwtPolarPlot::QwtPolarPlot ( QWidget * parent = nullptr )

explicit

Constructor

构造函数

◆ QwtPolarPlot() [2/2]

QwtPolarPlot::QwtPolarPlot	(	const QwtText &	title,
		QWidget *	parent = `nullptr`
	)

Constructor with title

带标题的构造函数

◆ ~QwtPolarPlot()

QwtPolarPlot::~QwtPolarPlot ( )

virtual

Destructor

析构函数

成员函数说明

◆ autoRefresh

void QwtPolarPlot::autoRefresh ( )

slot

Auto refresh the plot

如果 autoReplot() 为 true 则重新绘制绘图

◆ autoReplot()

bool QwtPolarPlot::autoReplot ( ) const

Get auto replot

检查是否设置了自动重绘选项

◆ azimuthOrigin()

double QwtPolarPlot::azimuthOrigin ( ) const

Get the azimuth origin

获取方位角刻度的原点

◆ canvas() [1/2]

QwtPolarCanvas * QwtPolarPlot::canvas ( )

Get the canvas

获取绘图的画布

◆ canvas() [2/2]

const QwtPolarCanvas * QwtPolarPlot::canvas ( ) const

Get the canvas (const version)

获取绘图的画布（常量版本）

◆ drawCanvas()

void QwtPolarPlot::drawCanvas	(	QPainter *	painter,
		const QRectF &	canvasRect
	)		const

virtual

Draw the canvas

重绘画布

◆ drawItems()

void QwtPolarPlot::drawItems	(	QPainter *	painter,
		const QwtScaleMap &	azimuthMap,
		const QwtScaleMap &	radialMap,
		const QPointF &	pole,
		double	radius,
		const QRectF &	canvasRect
	)		const

protectedvirtual

Draw items

重绘画布项

◆ event()

bool QwtPolarPlot::event ( QEvent * e )

overrideprotectedvirtual

Handle events

Qt 事件处理器

◆ hasAutoScale()

bool QwtPolarPlot::hasAutoScale ( int scaleId ) const

Check if a scale has auto scale

检查是否启用了自动缩放

◆ infoToItem()

QwtPolarItem * QwtPolarPlot::infoToItem ( const QVariant & itemInfo ) const

virtual

Convert info to an item

根据项信息对象标识绘图项

◆ insertLegend()

void QwtPolarPlot::insertLegend	(	QwtAbstractLegend *	legend,
		QwtPolarPlot::LegendPosition	pos = `RightLegend`,
		double	ratio = `-1.0`
	)

Insert a legend

插入图例

◆ itemAttached

void QwtPolarPlot::itemAttached	(	QwtPolarItem *	plotItem,
		bool	on
	)

signal

A signal indicating, that an item has been attached/detached 表示绘图项已附加/分离的信号

参数

plotItem	Plot item / 绘图项
on	Attached/Detached / 附加/分离

◆ itemToInfo()

QVariant QwtPolarPlot::itemToInfo ( QwtPolarItem * plotItem ) const

virtual

Convert an item to info

构建信息对象以在图例上标识绘图项

◆ legend() [1/2]

QwtAbstractLegend * QwtPolarPlot::legend ( )

Get the legend

获取绘图的图例

◆ legend() [2/2]

const QwtAbstractLegend * QwtPolarPlot::legend ( ) const

Get the legend (const version)

获取绘图的图例（常量版本）

◆ legendDataChanged

void QwtPolarPlot::legendDataChanged	(	const QVariant &	itemInfo,
		const QList< QwtLegendData > &	data
	)

signal

A signal with the attributes how to update the legend entries for a plot item 包含如何更新绘图项图例条目属性的信号

参数

itemInfo	Info about a plot, build from itemToInfo() / 关于绘图的信息，由 itemToInfo() 构建
data	Attributes of the entries ( usually <= 1 ) for the plot item / 绘图项的条目属性（通常 <= 1）

参见: itemToInfo(), infoToItem(), QwtAbstractLegend::updateLegend()

◆ plotBackground()

const QBrush & QwtPolarPlot::plotBackground ( ) const

Get the plot background

获取绘图背景画刷

◆ plotLayout() [1/2]

QwtPolarLayout * QwtPolarPlot::plotLayout ( )

Get the plot layout

获取负责绘图组件几何形状的布局

◆ plotLayout() [2/2]

const QwtPolarLayout * QwtPolarPlot::plotLayout ( ) const

Get the plot layout (const version)

获取负责绘图组件几何形状的布局（常量版本）

◆ plotMarginHint()

int QwtPolarPlot::plotMarginHint ( ) const

Get the plot margin hint

获取所有项边距提示的最大值

◆ plotRect() [1/2]

QRectF QwtPolarPlot::plotRect ( ) const

Get the plot rectangle

获取绘图区域的边界矩形

◆ plotRect() [2/2]

QRectF QwtPolarPlot::plotRect ( const QRectF & canvasRect ) const

Get the plot rectangle for a given rectangle

计算绘图区域的边界矩形

◆ replot

void QwtPolarPlot::replot ( )

virtualslot

Replot the plot

重绘绘图

◆ resizeEvent()

void QwtPolarPlot::resizeEvent ( QResizeEvent * e )

overrideprotectedvirtual

Handle resize events

调整大小并更新内部布局

◆ scaleDiv() [1/2]

QwtScaleDiv * QwtPolarPlot::scaleDiv ( int scaleId )

Get the scale division for a scale

返回指定刻度的刻度划分

◆ scaleDiv() [2/2]

const QwtScaleDiv * QwtPolarPlot::scaleDiv ( int scaleId ) const

Get the scale division for a scale (const version)

返回指定刻度的刻度划分

◆ scaleEngine() [1/2]

QwtScaleEngine * QwtPolarPlot::scaleEngine ( int scaleId )

Get the scale engine for a scale

获取特定刻度的刻度引擎

◆ scaleEngine() [2/2]

const QwtScaleEngine * QwtPolarPlot::scaleEngine ( int scaleId ) const

Get the scale engine for a scale (const version)

获取特定刻度的刻度引擎（常量版本）

◆ scaleMap() [1/2]

QwtScaleMap QwtPolarPlot::scaleMap ( int scaleId ) const

Get the scale map for a scale

构建刻度映射

◆ scaleMap() [2/2]

QwtScaleMap QwtPolarPlot::scaleMap	(	int	scaleId,
		double	radius
	)		const

Get the scale map for a scale with radius

构建带有指定半径的刻度映射

◆ scaleMaxMajor()

int QwtPolarPlot::scaleMaxMajor ( int scaleId ) const

Get the maximum number of major ticks for a scale

获取指定轴的最大主要刻度数

◆ scaleMaxMinor()

int QwtPolarPlot::scaleMaxMinor ( int scaleId ) const

Get the maximum number of minor ticks for a scale

获取指定轴的最大次要刻度数

◆ setAutoReplot()

void QwtPolarPlot::setAutoReplot ( bool enable = true )

Set auto replot

设置或重置自动重绘选项

◆ setAutoScale()

void QwtPolarPlot::setAutoScale ( int scaleId )

Set auto scale for a scale

启用自动缩放

◆ setAzimuthOrigin

void QwtPolarPlot::setAzimuthOrigin ( double origin )

slot

Set the azimuth origin

更改方位角刻度的原点

◆ setPlotBackground()

void QwtPolarPlot::setPlotBackground ( const QBrush & brush )

Set the plot background

设置绘图区域的背景

◆ setScale()

void QwtPolarPlot::setScale	(	int	scaleId,
		double	min,
		double	max,
		double	stepSize = `0`
	)

Set the scale for a scale

禁用自动缩放并指定选定刻度的固定刻度

◆ setScaleDiv()

void QwtPolarPlot::setScaleDiv	(	int	scaleId,
		const QwtScaleDiv &	scaleDiv
	)

Set the scale division for a scale

禁用自动缩放并指定选定刻度的固定刻度

◆ setScaleEngine()

void QwtPolarPlot::setScaleEngine	(	int	scaleId,
		QwtScaleEngine *	scaleEngine
	)

Set the scale engine for a scale

更改轴的刻度引擎

◆ setScaleMaxMajor()

void QwtPolarPlot::setScaleMaxMajor	(	int	scaleId,
		int	maxMajor
	)

Set the maximum number of major ticks for a scale

设置指定刻度的最大主要刻度间隔数

◆ setScaleMaxMinor()

void QwtPolarPlot::setScaleMaxMinor	(	int	scaleId,
		int	maxMinor
	)

Set the maximum number of minor ticks for a scale

设置指定刻度的最大次要刻度间隔数

◆ setTitle() [1/2]

void QwtPolarPlot::setTitle ( const QString & title )

Set the title

更改绘图的标题

◆ setTitle() [2/2]

void QwtPolarPlot::setTitle ( const QwtText & title )

Set the title

更改绘图的标题

◆ title()

QwtText QwtPolarPlot::title ( ) const

Get the title

获取绘图的标题

◆ titleLabel() [1/2]

QwtTextLabel * QwtPolarPlot::titleLabel ( )

Get the title label

获取标题标签控件

◆ titleLabel() [2/2]

const QwtTextLabel * QwtPolarPlot::titleLabel ( ) const

Get the title label (const version)

获取标题标签控件（常量版本）

◆ unzoom()

void QwtPolarPlot::unzoom ( )

Unzoom the plot

取消绘图的缩放

◆ updateLayout()

void QwtPolarPlot::updateLayout ( )

protectedvirtual

Update the layout

重建布局

◆ updateLegend() [1/2]

void QwtPolarPlot::updateLegend ( )

Update the legend

为所有绘图项发出 legendDataChanged() 信号

◆ updateLegend() [2/2]

void QwtPolarPlot::updateLegend ( const QwtPolarItem * plotItem )

Update the legend for an item

为绘图项发出 legendDataChanged() 信号

◆ updateScale()

void QwtPolarPlot::updateScale ( int scaleId )

Update a scale

重建刻度

◆ visibleInterval()

QwtInterval QwtPolarPlot::visibleInterval ( ) const

Get the visible interval

获取画布上可见的径向刻度的边界区间

◆ zoom()

void QwtPolarPlot::zoom	(	const QwtPointPolar &	zoomPos,
		double	zoomFactor
	)

Zoom to a position with a factor

平移和增/减缩放因子

◆ zoomFactor()

double QwtPolarPlot::zoomFactor ( ) const

Get the zoom factor

获取缩放因子

◆ zoomPos()

QwtPointPolar QwtPolarPlot::zoomPos ( ) const

Get the zoom position

获取缩放位置

该类的文档由以下文件生成:

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

类

Public 类型

Public 槽

信号

Public 成员函数

Protected 成员函数

属性

友元

详细描述

成员枚举类型说明

◆ LegendPosition

构造及析构函数说明

◆ QwtPolarPlot() [1/2]

◆ QwtPolarPlot() [2/2]

◆ ~QwtPolarPlot()

成员函数说明

◆ autoRefresh

◆ autoReplot()

◆ azimuthOrigin()

◆ canvas() [1/2]

◆ canvas() [2/2]

◆ drawCanvas()

◆ drawItems()

◆ event()

◆ hasAutoScale()

◆ infoToItem()

◆ insertLegend()

◆ itemAttached

◆ itemToInfo()

◆ legend() [1/2]

◆ legend() [2/2]

◆ legendDataChanged

◆ plotBackground()

◆ plotLayout() [1/2]

◆ plotLayout() [2/2]

◆ plotMarginHint()

◆ plotRect() [1/2]

◆ plotRect() [2/2]

◆ replot

◆ resizeEvent()

◆ scaleDiv() [1/2]

◆ scaleDiv() [2/2]

◆ scaleEngine() [1/2]

◆ scaleEngine() [2/2]

◆ scaleMap() [1/2]

◆ scaleMap() [2/2]

◆ scaleMaxMajor()

◆ scaleMaxMinor()

◆ setAutoReplot()

◆ setAutoScale()

◆ setAzimuthOrigin

◆ setPlotBackground()

◆ setScale()

◆ setScaleDiv()

◆ setScaleEngine()

◆ setScaleMaxMajor()

◆ setScaleMaxMinor()

◆ setTitle() [1/2]

◆ setTitle() [2/2]

◆ title()

◆ titleLabel() [1/2]

◆ titleLabel() [2/2]

◆ unzoom()

◆ updateLayout()

◆ updateLegend() [1/2]

◆ updateLegend() [2/2]

◆ updateScale()

◆ visibleInterval()

◆ zoom()

◆ zoomFactor()

◆ zoomPos()