QwtPlotMultiBarChart 显示一系列由每组值组成的样本更多...

#include <qwt_plot_multi_barchart.h>

类 QwtPlotMultiBarChart 继承关系图:

类
class	PrivateData

Public 类型
enum	ChartStyle { Grouped , Stacked }
	图表样式更多...

Public 类型继承自 QwtPlotAbstractBarChart
enum	LayoutPolicy { AutoAdjustSamples , ScaleSamplesToAxes , ScaleSampleToCanvas , FixedSampleSize }
	Mode how to calculate the bar width 更多...

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...

Public 成员函数
	QwtPlotMultiBarChart (const QString &title=QString())
	Constructor

	QwtPlotMultiBarChart (const QwtText &title)
	Constructor with title

virtual	~QwtPlotMultiBarChart ()
	Destructor

virtual int	rtti () const override
	Get the runtime type information

void	setBarTitles (const QList< QwtText > &)
	Set the bar titles

QList< QwtText >	barTitles () const
	Get the bar titles

void	setSamples (const QVector< QwtSetSample > &)
	Set samples from a vector of QwtSetSample

void	setSamples (const QVector< QVector< double > > &)
	Set samples from a vector of vectors

void	setSamples (QwtSeriesData< QwtSetSample > *)
	Set samples from a series data

void	setStyle (ChartStyle style)
	Set the chart style

ChartStyle	style () const
	Get the chart style

void	setSymbol (int valueIndex, QwtColumnSymbol *)
	Set the symbol for a specific value index

const QwtColumnSymbol *	symbol (int valueIndex) const
	Get the symbol for a specific value index

void	resetSymbolMap ()
	Reset the symbol map

virtual void	drawSeries (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, int from, int to) const override
	Draw the series

virtual QRectF	boundingRect () const override
	Get the bounding rectangle

virtual QList< QwtLegendData >	legendData () const override
	Get the legend data

virtual QwtGraphic	legendIcon (int index, const QSizeF &) const override
	Get the legend icon

Public 成员函数继承自 QwtPlotAbstractBarChart
	QwtPlotAbstractBarChart (const QwtText &title)
	构造函数

virtual	~QwtPlotAbstractBarChart ()
	析构函数

void	setLayoutPolicy (LayoutPolicy)
	设置布局策略

LayoutPolicy	layoutPolicy () const
	获取布局策略

void	setLayoutHint (double)
	设置布局提示

double	layoutHint () const
	获取布局提示

void	setSpacing (int)
	设置条形之间的间距

int	spacing () const
	获取条形之间的间距

void	setMargin (int)
	设置条形周围的边距

int	margin () const
	获取条形周围的边距

void	setBaseline (double)
	设置基线值

double	baseline () const
	获取基线值

virtual void	getCanvasMarginHint (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, double &left, double &top, double &right, double &bottom) const override
	计算画布边距的提示

Public 成员函数继承自 QwtPlotSeriesItem
	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	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

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	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

Public 成员函数继承自 QwtSeriesStore< QwtSetSample >
void	setData (QwtSeriesData< QwtSetSample > *series)

QwtSeriesData< QwtSetSample > *	data ()

const QwtSeriesData< QwtSetSample > *	data () const

QwtSetSample	sample (size_t index) const

virtual size_t	dataSize () const override

virtual QRectF	dataRect () const override

virtual void	setRectOfInterest (const QRectF &rect) override
	Set a the "rectangle of interest" for the stored series

QwtSeriesData< QwtSetSample > *	swapData (QwtSeriesData< QwtSetSample > *series)

Protected 成员函数
QwtColumnSymbol *	symbol (int valueIndex)
	Get the symbol for a specific value index

virtual QwtColumnSymbol *	specialSymbol (int sampleIndex, int valueIndex) const
	Get a special symbol for a specific sample and value index

virtual void	drawSample (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, const QwtInterval &boundingInterval, int index, const QwtSetSample &) const
	Draw a sample

virtual void	drawBar (QPainter *, int sampleIndex, int valueIndex, const QwtColumnRect &) const
	Draw a bar

void	drawStackedBars (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, int index, double sampleWidth, const QwtSetSample &) const
	Draw stacked bars

void	drawGroupedBars (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, int index, double sampleWidth, const QwtSetSample &) const
	Draw grouped bars

Protected 成员函数继承自 QwtPlotAbstractBarChart
double	sampleWidth (const QwtScaleMap &map, double canvasSize, double boundingSize, double value) const
	Calculate the width for a sample in paint device coordinates

Protected 成员函数继承自 QwtPlotSeriesItem
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

详细描述

QwtPlotMultiBarChart 显示一系列由每组值组成的样本

成员枚举类型说明

◆ ChartStyle

enum QwtPlotMultiBarChart::ChartStyle

图表样式

枚举值
Grouped	The bars of a set are displayed side by side
Stacked	条形相互叠加显示，累积为单个条形。一组中的所有值必须具有相同的符号。

构造及析构函数说明

◆ QwtPlotMultiBarChart() [1/2]

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

explicit

Constructor

构造函数

◆ QwtPlotMultiBarChart() [2/2]

QwtPlotMultiBarChart::QwtPlotMultiBarChart ( const QwtText & title )

explicit

Constructor with title

构造函数

◆ ~QwtPlotMultiBarChart()

QwtPlotMultiBarChart::~QwtPlotMultiBarChart ( )

virtual

Destructor

析构函数

成员函数说明

◆ barTitles()

QList< QwtText > QwtPlotMultiBarChart::barTitles ( ) const

Get the bar titles

获取条形标题

◆ boundingRect()

QRectF QwtPlotMultiBarChart::boundingRect ( ) const

overridevirtual

Get the bounding rectangle

获取所有样本的边界矩形

重载 QwtPlotSeriesItem .

◆ drawBar()

void QwtPlotMultiBarChart::drawBar	(	QPainter *	painter,
		int	sampleIndex,
		int	valueIndex,
		const QwtColumnRect &	rect
	)		const

protectedvirtual

Draw a bar

参数

painter	Painter
sampleIndex	Index of the sample - might be -1 when the bar is painted for the legend
valueIndex	Index of a value in a set
rect	Directed target rectangle for the bar

参见: drawSeries()

◆ drawGroupedBars()

void QwtPlotMultiBarChart::drawGroupedBars	(	QPainter *	painter,
		const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QRectF &	canvasRect,
		int	index,
		double	sampleWidth,
		const QwtSetSample &	sample
	)		const

protected

Draw grouped bars

Draw a grouped sample

参数

painter	Painter
xMap	x map
yMap	y map
canvasRect	Contents rectangle of the canvas
index	Index of the sample to be painted
sampleWidth	Bounding width for all bars of the sample
sample	Sample

参见: drawSeries(), sampleWidth()

◆ drawSample()

void QwtPlotMultiBarChart::drawSample	(	QPainter *	painter,
		const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QRectF &	canvasRect,
		const QwtInterval &	boundingInterval,
		int	index,
		const QwtSetSample &	sample
	)		const

protectedvirtual

Draw a sample

参数

painter	Painter
xMap	x map
yMap	y map
canvasRect	Contents rectangle of the canvas
boundingInterval	Bounding interval of sample values
index	Index of the sample to be painted
sample	Sample value

参见: drawSeries()

◆ drawSeries()

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

overridevirtual

Draw the series

绘制柱状图的区间

实现了 QwtPlotSeriesItem.

◆ drawStackedBars()

void QwtPlotMultiBarChart::drawStackedBars	(	QPainter *	painter,
		const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QRectF &	canvasRect,
		int	index,
		double	sampleWidth,
		const QwtSetSample &	sample
	)		const

protected

Draw stacked bars

Draw a stacked sample

参数

painter	Painter
xMap	x map
yMap	y map
canvasRect	Contents rectangle of the canvas
index	Index of the sample to be painted
sampleWidth	Width of the bars
sample	Sample

参见: drawSeries(), sampleWidth()

◆ legendData()

QList< QwtLegendData > QwtPlotMultiBarChart::legendData ( ) const

overridevirtual

Get the legend data

获取要在图例上显示的信息

重载 QwtPlotItem .

◆ legendIcon()

QwtGraphic QwtPlotMultiBarChart::legendIcon	(	int	index,
		const QSizeF &	size
	)		const

overridevirtual

Get the legend icon

获取用于在图例上表示条形的图标

重载 QwtPlotItem .

◆ resetSymbolMap()

void QwtPlotMultiBarChart::resetSymbolMap ( )

Reset the symbol map

从符号映射中删除所有符号

◆ rtti()

int QwtPlotMultiBarChart::rtti ( ) const

overridevirtual

Get the runtime type information

获取运行时类型信息

重载 QwtPlotItem .

◆ setBarTitles()

void QwtPlotMultiBarChart::setBarTitles ( const QList< QwtText > & titles )

Set the bar titles

设置条形的标题

◆ setSamples() [1/3]

void QwtPlotMultiBarChart::setSamples ( const QVector< QVector< double > > & samples )

Set samples from a vector of vectors

使用向量数组初始化数据

◆ setSamples() [2/3]

void QwtPlotMultiBarChart::setSamples ( const QVector< QwtSetSample > & samples )

Set samples from a vector of QwtSetSample

使用样本数组初始化数据

◆ setSamples() [3/3]

void QwtPlotMultiBarChart::setSamples ( QwtSeriesData< QwtSetSample > * data )

Set samples from a series data

分配样本序列

◆ setStyle()

void QwtPlotMultiBarChart::setStyle ( ChartStyle style )

Set the chart style

设置图表样式

◆ setSymbol()

void QwtPlotMultiBarChart::setSymbol	(	int	valueIndex,
		QwtColumnSymbol *	symbol
	)

Set the symbol for a specific value index

将符号添加到符号映射

◆ specialSymbol()

QwtColumnSymbol * QwtPlotMultiBarChart::specialSymbol	(	int	sampleIndex,
		int	valueIndex
	)		const

protectedvirtual

Get a special symbol for a specific sample and value index

Create a symbol for special values

Usually the symbols for displaying a bar are set by setSymbols() and common for all sets. By overloading specialSymbol() it is possible to create a temporary symbol() for displaying a special value.

The symbol has to be created by new each time specialSymbol() is called. As soon as the symbol is painted this symbol gets deleted.

When no symbol ( nullptr ) is returned, the value will be displayed with the standard symbol that is used for all symbols with the same valueIndex.

参数

sampleIndex	Index of the sample
valueIndex	Index of the value in the set

返回: nullptr, meaning that the value is not special

◆ style()

QwtPlotMultiBarChart::ChartStyle QwtPlotMultiBarChart::style ( ) const

Get the chart style

获取图表样式

◆ symbol() [1/2]

QwtColumnSymbol * QwtPlotMultiBarChart::symbol ( int valueIndex )

protected

Get the symbol for a specific value index

Find a symbol in the symbol map

参数

valueIndex Index of a value in a set

返回: The symbol, that had been set by setSymbol() or nullptr.

参见: setSymbol(), specialSymbol(), drawBar()

◆ symbol() [2/2]

const QwtColumnSymbol * QwtPlotMultiBarChart::symbol ( int valueIndex ) const

Get the symbol for a specific value index

在符号映射中查找符号

该类的文档由以下文件生成:

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

类

Public 类型

Public 成员函数

Protected 成员函数

详细描述

成员枚举类型说明

◆ ChartStyle

构造及析构函数说明

◆ QwtPlotMultiBarChart() [1/2]

◆ QwtPlotMultiBarChart() [2/2]

◆ ~QwtPlotMultiBarChart()

成员函数说明

◆ barTitles()

◆ boundingRect()

◆ drawBar()

◆ drawGroupedBars()

◆ drawSample()

◆ drawSeries()

◆ drawStackedBars()

◆ legendData()

◆ legendIcon()

◆ resetSymbolMap()

◆ rtti()

◆ setBarTitles()

◆ setSamples() [1/3]

◆ setSamples() [2/3]

◆ setSamples() [3/3]

◆ setStyle()

◆ setSymbol()

◆ specialSymbol()

◆ style()

◆ symbol() [1/2]

◆ symbol() [2/2]