內容

特性
公共函數
信號
靜態公共成員
詳細描述

QXYSeries 類

The QXYSeries class 是綫、樣條綫及散點係列的基類。更多...

頭：	#include <QXYSeries>
實例化：	XYSeries
繼承：	QAbstractSeries
繼承者：	QLineSeries and QScatterSeries

特性

color : QColor
pointLabelsClipping : bool
pointLabelsColor : QColor
pointLabelsFont : QFont

pointLabelsFormat : QString
pointLabelsVisible : bool
pointsVisible : bool

5 特性繼承自 QAbstractSeries
1 特性繼承自 QObject

公共函數

virtual	~QXYSeries ()
void	append (qreal x , qreal y )
void	append (const QPointF & point )
void	append (const QList<QPointF> & points )
const QPointF &	at (int index ) const
QBrush	brush () const
void	clear ()
virtual QColor	color () const
int	count () const
void	insert (int index , const QPointF & point )
QPen	pen () const
bool	pointLabelsClipping () const
QColor	pointLabelsColor () const
QFont	pointLabelsFont () const
QString	pointLabelsFormat () const
bool	pointLabelsVisible () const
QList<QPointF>	points () const
QVector<QPointF>	pointsVector () const
bool	pointsVisible () const
void	remove (qreal x , qreal y )
void	remove (const QPointF & point )
void	remove (int index )
void	removePoints (int index , int count )
void	replace (qreal oldX , qreal oldY , qreal newX , qreal newY )
void	replace (const QPointF & oldPoint , const QPointF & newPoint )
void	replace (int index , qreal newX , qreal newY )
void	replace (int index , const QPointF & newPoint )
void	replace (QList<QPointF> points )
void	replace (QVector<QPointF> points )
virtual void	setBrush (const QBrush & brush )
virtual void	setColor (const QColor & color )
virtual void	setPen (const QPen & pen )
void	setPointLabelsClipping (bool enabled = true)
void	setPointLabelsColor (const QColor & color )
void	setPointLabelsFont (const QFont & font )
void	setPointLabelsFormat (const QString & format )
void	setPointLabelsVisible (bool visible = true)
void	setPointsVisible (bool visible = true)
QXYSeries &	operator<< (const QPointF & point )
QXYSeries &	operator<< (const QList<QPointF> & points )

15 公共函數繼承自 QAbstractSeries
31 公共函數繼承自 QObject

信號

void	clicked (const QPointF & point )
void	colorChanged (QColor color )
void	doubleClicked (const QPointF & point )
void	hovered (const QPointF & point , bool state )
void	penChanged (const QPen & pen )
void	pointAdded (int index )
void	pointLabelsClippingChanged (bool clipping )
void	pointLabelsColorChanged (const QColor & color )
void	pointLabelsFontChanged (const QFont & font )
void	pointLabelsFormatChanged (const QString & format )
void	pointLabelsVisibilityChanged (bool visible )
void	pointRemoved (int index )
void	pointReplaced (int index )
void	pointsRemoved (int index , int count )
void	pointsReplaced ()
void	pressed (const QPointF & point )
void	released (const QPointF & point )

4 信號繼承自 QAbstractSeries
2 信號繼承自 QObject

靜態公共成員

const QMetaObject

staticMetaObject

9 靜態公共成員繼承自 QObject

額外繼承成員

1 公共槽繼承自 QObject
9 保護函數繼承自 QObject

詳細描述

The QXYSeries class 是綫、樣條綫及散點係列的基類。

特性文檔編製

color : QColor

此特性保持係列的顔色。

This is the line (pen) color in case of QLineSeries or QSplineSeries and the fill (brush) color in case of QScatterSeries or QAreaSeries .

訪問函數：

virtual QColor	color () const
virtual void	setColor (const QColor & color )

通知程序信號：

void	colorChanged (QColor color )

另請參閱 pen () 和 brush ().

pointLabelsClipping : bool

This property holds the clipping for data point labels.

此特性是 true by default. The labels on the edge of the plot area are cut when clipping is enabled.

訪問函數：

bool	pointLabelsClipping () const
void	setPointLabelsClipping (bool enabled = true)

通知程序信號：

void	pointLabelsClippingChanged (bool clipping )

另請參閱 pointLabelsVisible .

pointLabelsColor : QColor

This property holds the color used for data point labels. By default, the color is the color of the brush defined in theme for labels.

訪問函數：

QColor	pointLabelsColor () const
void	setPointLabelsColor (const QColor & color )

通知程序信號：

void	pointLabelsColorChanged (const QColor & color )

另請參閱 pointLabelsFormat .

pointLabelsFont : QFont

This property holds the font used for data point labels.

訪問函數：

QFont	pointLabelsFont () const
void	setPointLabelsFont (const QFont & font )

通知程序信號：

void	pointLabelsFontChanged (const QFont & font )

另請參閱 pointLabelsFormat .

pointLabelsFormat : QString

This property holds the format used for showing labels with data points.

QXYSeries supports the following format tags:

@xPoint	The x-coordinate of the data point.
@yPoint	The y-coordinate of the data point.

For example, the following usage of the format tags would produce labels that display the data point shown inside brackets separated by a comma (x, y):

series->setPointLabelsFormat("(@xPoint, @yPoint)");

By default, the labels' format is set to @xPoint, @yPoint . The labels are shown on the plot area, and the labels on the edge of the plot area are cut. If the points are close to each other, the labels may overlap.

訪問函數：

QString	pointLabelsFormat () const
void	setPointLabelsFormat (const QString & format )

通知程序信號：

void	pointLabelsFormatChanged (const QString & format )

另請參閱 pointLabelsVisible , pointLabelsFont ，和 pointLabelsColor .

pointLabelsVisible : bool

此特性保持數據點標簽的可見性。

此特性是 false 在默認情況下。

訪問函數：

bool	pointLabelsVisible () const
void	setPointLabelsVisible (bool visible = true)

通知程序信號：

void	pointLabelsVisibilityChanged (bool visible )

另請參閱 pointLabelsFormat and pointLabelsClipping .

pointsVisible : bool

This property holds whether the data points are visible and should be drawn.

訪問函數：

bool	pointsVisible () const
void	setPointsVisible (bool visible = true)

成員函數文檔編製

`[虛擬]` QXYSeries:: ~QXYSeries ()

刪除係列。係列被添加到 QChart instances are owned by them, and are deleted when the QChart instances are deleted.

void QXYSeries:: append ( qreal x , qreal y )

添加的數據點帶坐標 x and y 到係列。

void QXYSeries:: append (const QPointF & point )

這是重載函數。

添加數據點 point 到係列。

void QXYSeries:: append (const QList < QPointF > & points )

這是重載函數。

Adds the list of data points specified by points 到係列。

const QPointF &QXYSeries:: at ( int index ) const

Returns the data point at the position specified by index in the internal points vector.

QBrush QXYSeries:: brush () const

Returns the brush used to fill the data points for the series.

另請參閱 setBrush ().

void QXYSeries:: clear ()

從係列刪除所有點。

另請參閱 pointsRemoved ().

`[signal]` void QXYSeries:: clicked (const QPointF & point )

This signal is emitted when the user triggers a mouse event by clicking the point point in the chart.

另請參閱 pressed (), released ()，和 doubleClicked ().

`[signal]` void QXYSeries:: colorChanged ( QColor color )

This signal is emitted when the line (pen) color changes to color .

注意： 通知程序信號對於特性 color .

int QXYSeries:: count () const

返迴係列中的數據點數。

`[signal]` void QXYSeries:: doubleClicked (const QPointF & point )

This signal is emitted when the user double-clicks the data point point in the chart. The point is the point where the first press was triggered.

另請參閱 pressed (), released ()，和 clicked ().

`[signal]` void QXYSeries:: hovered (const QPointF & point , bool state )

This signal is emitted when a mouse is hovered over the point point in the chart. When the mouse moves over the point, state turns true , and when the mouse moves away again, it turns false .

void QXYSeries:: insert ( int index , const QPointF & point )

Inserts the data point point in the series at the position specified by index .

另請參閱 pointAdded ().

QPen QXYSeries:: pen () const

返迴用於繪製係列數據點輪廓的鋼筆。

另請參閱 setPen ().

`[signal]` void QXYSeries:: penChanged (const QPen & pen )

此信號被發射當鋼筆更改為 pen .

`[signal]` void QXYSeries:: pointAdded ( int index )

This signal is emitted when a point is added at the position specified by index .

另請參閱 append () 和 insert ().

`[signal]` void QXYSeries:: pointLabelsClippingChanged ( bool clipping )

This signal is emitted when the clipping of the data point labels changes to clipping .

注意： 通知程序信號對於特性 pointLabelsClipping .

`[signal]` void QXYSeries:: pointLabelsColorChanged (const QColor & color )

This signal is emitted when the color used for data point labels changes to color .

注意： 通知程序信號對於特性 pointLabelsColor .

`[signal]` void QXYSeries:: pointLabelsFontChanged (const QFont & font )

This signal is emitted when the font used for data point labels changes to font .

注意： 通知程序信號對於特性 pointLabelsFont .

`[signal]` void QXYSeries:: pointLabelsFormatChanged (const QString & format )

This signal is emitted when the format of data point labels changes to format .

注意： 通知程序信號對於特性 pointLabelsFormat .

`[signal]` void QXYSeries:: pointLabelsVisibilityChanged ( bool visible )

This signal is emitted when the visibility of the data point labels changes to visible .

注意： 通知程序信號對於特性 pointLabelsVisible .

`[signal]` void QXYSeries:: pointRemoved ( int index )

This signal is emitted when a point is removed from the position specified by index .

另請參閱 remove ().

`[signal]` void QXYSeries:: pointReplaced ( int index )

This signal is emitted when a point is replaced at the position specified by index .

另請參閱 replace ().

QList < QPointF > QXYSeries:: points () const

Returns the points in the series as a list. Use pointsVector () for better performance.

`[signal]` void QXYSeries:: pointsRemoved ( int index , int count )

This signal is emitted when the number of points specified by count is removed starting at the position specified by index .

另請參閱 removePoints () 和 clear ().

`[signal]` void QXYSeries:: pointsReplaced ()

This signal is emitted when all points are replaced with other points.

另請參閱 replace ().

QVector < QPointF > QXYSeries:: pointsVector () const

Returns the points in the series as a vector. This is more efficient than calling points ().

`[signal]` void QXYSeries:: pressed (const QPointF & point )

This signal is emitted when the user presses the data point point in the chart and holds down the mouse button.

另請參閱 clicked (), released ()，和 doubleClicked ().

`[signal]` void QXYSeries:: released (const QPointF & point )

This signal is emitted when the user releases the mouse press on the data point specified by point .

另請參閱 pressed (), clicked ()，和 doubleClicked ().

void QXYSeries:: remove ( qreal x , qreal y )

Removes the point that has the coordinates x and y from the series.

另請參閱 pointRemoved ().

void QXYSeries:: remove (const QPointF & point )

Removes the data point point from the series.

另請參閱 pointRemoved ().

void QXYSeries:: remove ( int index )

Removes the point at the position specified by index from the series.

另請參閱 pointRemoved ().

void QXYSeries:: removePoints ( int index , int count )

Removes the number of points specified by count from the series starting at the position specified by index .

另請參閱 pointsRemoved ().

void QXYSeries:: replace ( qreal oldX , qreal oldY , qreal newX , qreal newY )

Replaces the point with the coordinates oldX and oldY with the point with the coordinates newX and newY . Does nothing if the old point does not exist.

另請參閱 pointReplaced ().

void QXYSeries:: replace (const QPointF & oldPoint , const QPointF & newPoint )

Replaces the point specified by oldPoint with the one specified by newPoint .

另請參閱 pointReplaced ().

void QXYSeries:: replace ( int index , qreal newX , qreal newY )

Replaces the point at the position specified by index with the point that has the coordinates newX and newY .

另請參閱 pointReplaced ().

void QXYSeries:: replace ( int index , const QPointF & newPoint )

Replaces the point at the position specified by index with the point specified by newPoint .

另請參閱 pointReplaced ().

void QXYSeries:: replace ( QList < QPointF > points )

Replaces the current points with the points specified by points .

注意： This is much faster than replacing data points one by one, or first clearing all data, and then appending the new data. Emits QXYSeries::pointsReplaced () when the points have been replaced. However, note that using the overload that takes QVector<QPointF> as parameter is faster than using this overload.

另請參閱 pointsReplaced ().

void QXYSeries:: replace ( QVector < QPointF > points )

Replaces the current points with the points specified by points .

另請參閱 pointsReplaced ().

`[虛擬]` void QXYSeries:: setBrush (const QBrush & brush )

Sets the brush used for drawing points on the chart to brush . If the brush is not defined, the brush from the chart theme setting is used.

另請參閱 brush () 和 QChart::setTheme ().

`[虛擬]` void QXYSeries:: setPen (const QPen & pen )

將用於在圖錶中繪製點的鋼筆設為 pen 。若鋼筆未定義，則使用來自圖錶主題的鋼筆。

另請參閱 pen () 和 QChart::setTheme ().

QXYSeries &QXYSeries:: operator<< (const QPointF & point )

流運算符用於添加數據點 point 到係列。

另請參閱 append ().

QXYSeries &QXYSeries:: operator<< (const QList < QPointF > & points )

流運算符用於添加數據點列錶指定通過 points 到係列。

另請參閱 append ().

內容

QXYSeries 類

特性

公共函數

信號

靜態公共成員

額外繼承成員

詳細描述

特性文檔編製

color : QColor

pointLabelsClipping : bool

pointLabelsColor : QColor

pointLabelsFont : QFont

pointLabelsFormat : QString

pointLabelsVisible : bool

pointsVisible : bool

成員函數文檔編製

[虛擬] QXYSeries:: ~QXYSeries ()

void QXYSeries:: append ( qreal x , qreal y )

void QXYSeries:: append (const QPointF & point )

void QXYSeries:: append (const QList < QPointF > & points )

const QPointF &QXYSeries:: at ( int index ) const

QBrush QXYSeries:: brush () const

void QXYSeries:: clear ()

[signal] void QXYSeries:: clicked (const QPointF & point )

[signal] void QXYSeries:: colorChanged ( QColor color )

int QXYSeries:: count () const

[signal] void QXYSeries:: doubleClicked (const QPointF & point )

[signal] void QXYSeries:: hovered (const QPointF & point , bool state )

void QXYSeries:: insert ( int index , const QPointF & point )

QPen QXYSeries:: pen () const

[signal] void QXYSeries:: penChanged (const QPen & pen )

[signal] void QXYSeries:: pointAdded ( int index )

[signal] void QXYSeries:: pointLabelsClippingChanged ( bool clipping )

[signal] void QXYSeries:: pointLabelsColorChanged (const QColor & color )

[signal] void QXYSeries:: pointLabelsFontChanged (const QFont & font )

[signal] void QXYSeries:: pointLabelsFormatChanged (const QString & format )

[signal] void QXYSeries:: pointLabelsVisibilityChanged ( bool visible )

[signal] void QXYSeries:: pointRemoved ( int index )

[signal] void QXYSeries:: pointReplaced ( int index )

QList < QPointF > QXYSeries:: points () const

[signal] void QXYSeries:: pointsRemoved ( int index , int count )

[signal] void QXYSeries:: pointsReplaced ()

QVector < QPointF > QXYSeries:: pointsVector () const

[signal] void QXYSeries:: pressed (const QPointF & point )

[signal] void QXYSeries:: released (const QPointF & point )

void QXYSeries:: remove ( qreal x , qreal y )

void QXYSeries:: remove (const QPointF & point )

void QXYSeries:: remove ( int index )

void QXYSeries:: removePoints ( int index , int count )

void QXYSeries:: replace ( qreal oldX , qreal oldY , qreal newX , qreal newY )

void QXYSeries:: replace (const QPointF & oldPoint , const QPointF & newPoint )

void QXYSeries:: replace ( int index , qreal newX , qreal newY )

void QXYSeries:: replace ( int index , const QPointF & newPoint )

void QXYSeries:: replace ( QList < QPointF > points )

void QXYSeries:: replace ( QVector < QPointF > points )

[虛擬] void QXYSeries:: setBrush (const QBrush & brush )

[虛擬] void QXYSeries:: setPen (const QPen & pen )

QXYSeries &QXYSeries:: operator<< (const QPointF & point )

QXYSeries &QXYSeries:: operator<< (const QList < QPointF > & points )

`[虛擬]` QXYSeries:: ~QXYSeries ()

`[signal]` void QXYSeries:: clicked (const QPointF & point )

`[signal]` void QXYSeries:: colorChanged ( QColor color )

`[signal]` void QXYSeries:: doubleClicked (const QPointF & point )

`[signal]` void QXYSeries:: hovered (const QPointF & point , bool state )

`[signal]` void QXYSeries:: penChanged (const QPen & pen )

`[signal]` void QXYSeries:: pointAdded ( int index )

`[signal]` void QXYSeries:: pointLabelsClippingChanged ( bool clipping )

`[signal]` void QXYSeries:: pointLabelsColorChanged (const QColor & color )

`[signal]` void QXYSeries:: pointLabelsFontChanged (const QFont & font )

`[signal]` void QXYSeries:: pointLabelsFormatChanged (const QString & format )

`[signal]` void QXYSeries:: pointLabelsVisibilityChanged ( bool visible )

`[signal]` void QXYSeries:: pointRemoved ( int index )

`[signal]` void QXYSeries:: pointReplaced ( int index )

`[signal]` void QXYSeries:: pointsRemoved ( int index , int count )

`[signal]` void QXYSeries:: pointsReplaced ()

`[signal]` void QXYSeries:: pressed (const QPointF & point )

`[signal]` void QXYSeries:: released (const QPointF & point )

`[虛擬]` void QXYSeries:: setBrush (const QBrush & brush )

`[虛擬]` void QXYSeries:: setPen (const QPen & pen )