QXYSeries Class

The QXYSeries class is a base class for line, spline, and scatter series. More...

Header:	#include <QXYSeries>
Instantiated By:	XYSeries
Inherits:	QAbstractSeries
Inherited By:	QLineSeries and QScatterSeries

List of all members, including inherited members

Properties

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

pointLabelsFormat : QString
pointLabelsVisible : bool
pointsVisible : bool

Public Functions

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)

Signals

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)

Detailed Description

Property Documentation

color : QColor

This property holds the color of the series.

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

Access functions:

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

Notifier signal:

void	colorChanged(QColor color)

See also pen() and brush().

pointLabelsClipping : bool

This property holds the clipping for data point labels.

This property is true by default. The labels on the edge of the plot area are cut when clipping is enabled.

Access functions:

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

Notifier signal:

void	pointLabelsClippingChanged(bool clipping)

See also 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.

Access functions:

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

Notifier signal:

void	pointLabelsColorChanged(const QColor &color)

See also pointLabelsFormat.

pointLabelsFont : QFont

This property holds the font used for data point labels.

Access functions:

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

Notifier signal:

void	pointLabelsFontChanged(const QFont &font)

See also 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.

Access functions:

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

Notifier signal:

void	pointLabelsFormatChanged(const QString &format)

See also pointLabelsVisible, pointLabelsFont, and pointLabelsColor.

pointLabelsVisible : bool

This property holds the visibility of data point labels.

This property is false by default.

Access functions:

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

Notifier signal:

void	pointLabelsVisibilityChanged(bool visible)

See also pointLabelsFormat and pointLabelsClipping.

pointsVisible : bool

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

Access functions:

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

Member Function Documentation

`[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.

See also pressed(), released(), and doubleClicked().

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

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

Note: Notifier signal for property color.

`[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.

See also pressed(), released(), and 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.

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

This signal is emitted when the pen changes to pen.

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

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

See also append() and insert().

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

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

Note: Notifier signal for property pointLabelsClipping.

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

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

Note: Notifier signal for property pointLabelsColor.

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

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

Note: Notifier signal for property pointLabelsFont.

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

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

Note: Notifier signal for property pointLabelsFormat.

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

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

Note: Notifier signal for property pointLabelsVisible.

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

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

See also remove().

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

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

See also replace().

`[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.

See also removePoints() and clear().

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

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

See also replace().

`[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.

See also clicked(), released(), and 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.

See also pressed(), clicked(), and doubleClicked().

`[virtual]` QXYSeries::~QXYSeries()

Deletes the series. Series added to QChart instances are owned by them, and are deleted when the QChart instances are deleted.

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

Adds the data point with the coordinates x and y to the series.

void QXYSeries::append(const QPointF &point)

This is an overloaded function.

Adds the data point point to the series.

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

This is an overloaded function.

Adds the list of data points specified by points to the series.

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.

See also setBrush().

void QXYSeries::clear()

Removes all points from the series.

See also pointsRemoved().

int QXYSeries::count() const

Returns the number of data points in a series.

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

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

See also pointAdded().

QPen QXYSeries::pen() const

Returns the pen used to draw the outline of the data points for the series.

See also setPen().

QList<QPointF> QXYSeries::points() const

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

QVector<QPointF> QXYSeries::pointsVector() const

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

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

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

See also pointRemoved().

void QXYSeries::remove(const QPointF &point)

Removes the data point point from the series.

See also pointRemoved().

void QXYSeries::remove(int index)

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

See also 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.

See also 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.

See also pointReplaced().

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

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

See also 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.

See also pointReplaced().

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

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

See also pointReplaced().

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

Replaces the current points with the points specified by points.

Note: 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.

See also pointsReplaced().

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

Replaces the current points with the points specified by points.

Note: 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.

See also pointsReplaced().

`[virtual]` 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.

See also brush() and QChart::setTheme().

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

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

See also pen() and QChart::setTheme().

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

Stream operator for adding the data point point to the series.

See also append().

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

Stream operator for adding the list of data points specified by points to the series.

See also append().

Contents

QXYSeries Class

Properties

Public Functions

Signals

Detailed Description

Property Documentation

color : QColor

pointLabelsClipping : bool

pointLabelsColor : QColor

pointLabelsFont : QFont

pointLabelsFormat : QString

pointLabelsVisible : bool

pointsVisible : bool

Member Function Documentation

[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)

[virtual] 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()

int QXYSeries::count() const

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

QPen QXYSeries::pen() const

QList<QPointF> QXYSeries::points() const

QVector<QPointF> QXYSeries::pointsVector() const

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)

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

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

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

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

`[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)

`[virtual]` QXYSeries::~QXYSeries()

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

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