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XYSeries QML Type

A base type for line, spline, and scatter series.

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XYSeries QML Type

Detailed Description

XYSeries supports displaying best fit line on a chart. Best fit line is a line through a chart that expresses the relationship between points.

Property Documentation

 

axisAngular : AbstractAxis

The angular axis used for the series, drawn around the polar chart view.

See Also

See also axisX

axisRadial : AbstractAxis

The radial axis used for the series, drawn inside the polar chart view.

See Also

See also axisY

axisX : AbstractAxis

The x-axis used for the series. If you leave both axisX and axisXTop undefined, a value axis is created for the series.

See Also

See also axisXTop, ValueAxis

axisXTop : AbstractAxis

The x-axis used for the series, drawn on top of the chart view.

You can only provide either axisX or axisXTop, not both.

See Also

See also axisX

axisY : AbstractAxis

The y-axis used for the series. If you leave both axisY and axisYRight undefined, a value axis is created for the series.

See Also

See also axisYRight, ValueAxis

axisYRight : AbstractAxis

The y-axis used for the series, drawn to the right on the chart view.

You can only provide either axisY or axisYRight, not both.

See Also

See also axisY

bestFitLineColor : bool

The color of best fit line.

See Also

bestFitLineVisible : bool

The visibility of the best fit line. This property is false by default.

color : color

The color of the series. This is the line (pen) color in case of LineSeries or SplineSeries and the fill (brush) color in case of ScatterSeries or AreaSeries.

pointLabelsClipping : bool

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.

See Also

pointLabelsColor : font

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

See Also

pointLabelsFont : font

The font used for data point labels.

See Also

pointLabelsFormat : string

The format used for showing labels with data points.

See Also

pointLabelsVisible : bool

The visibility of data point labels. This property is false by default.

See Also

pointsVisible : bool

Whether the data points are visible and should be drawn.

selectedColor : color

The color of the selected points. This is the fill (brush) color of points marked as selected. If not specified, value of QXYSeries::color is used as default.

See Also

See also color

Signal Documentation

 

clicked(point point)

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

 
Sélectionnez
LineSeries {
    XYPoint { x: 0; y: 0 }
    XYPoint { x: 1.1; y: 2.1 }
    onClicked: console.log("onClicked: " + point.x + ", " + point.y);
}

The corresponding signal handler is onClicked().

The corresponding handler is onClicked.

See Also

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

doubleClicked(point 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. For example:

 
Sélectionnez
LineSeries {
    XYPoint { x: 0; y: 0 }
    XYPoint { x: 1.1; y: 2.1 }
    onDoubleClicked: console.log("onDoubleClicked: " + point.x + ", " + point.y);
}

The corresponding signal handler is onDoubleClicked().

The corresponding handler is onDoubleClicked.

See Also

See also pressed(), released(), clicked()

hovered(point 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.

The corresponding signal handler is onHovered().

The corresponding handler is onHovered.

pointAdded(int index)

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

The corresponding signal handler is onPointAdded().

The corresponding handler is onPointAdded.

pointRemoved(int index)

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

The corresponding signal handler is onPointRemoved().

The corresponding handler is onPointRemoved.

pointReplaced(int index)

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

The corresponding signal handler is onPointReplaced().

The corresponding handler is onPointReplaced.

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.

The corresponding signal handler is onPointRemoved().

The corresponding handler is onPointsRemoved.

pointsReplaced()

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

The corresponding signal handler is onPointsReplaced().

The corresponding handler is onPointsReplaced.

pressed(point point)

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

 
Sélectionnez
LineSeries {
    XYPoint { x: 0; y: 0 }
    XYPoint { x: 1.1; y: 2.1 }
    onPressed: console.log("onPressed: " + point.x + ", " + point.y);
}

The corresponding signal handler is onPressed().

The corresponding handler is onPressed.

See Also

See also clicked(), released(), doubleClicked()

released(point point)

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

 
Sélectionnez
LineSeries {
    XYPoint { x: 0; y: 0 }
    XYPoint { x: 1.1; y: 2.1 }
    onReleased: console.log("onReleased: " + point.x + ", " + point.y);
}

The corresponding signal handler is onReleased().

The corresponding handler is onReleased.

See Also

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

Method Documentation

 

append(real x, real y)

Appends a point with the coordinates x and y to the series.

QPointF at(int index)

Returns the point at the position specified by index. Returns (0, 0) if the index is not valid.

insert(int index, real x, real y)

Inserts a point with the coordinates x and y to the position specified by index in the series. If the index is 0 or less than 0, the point is prepended to the list of points. If the index is equal to or greater than than the number of points in the series, the point is appended to the list of points.

remove(real x, real y)

Removes the point with the coordinates x and y from the series. Does nothing if the point does not exist.

remove(int index)

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

removePoints(int index, int count)

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

replace(real oldX, real oldY, real newX, real 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.

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