Q3DScatter Class

First, construct Q3DScatter. Since we are running the graph as top level window in this example, we need to clear the Qt::FramelessWindowHint flag, which gets set by default:

Q3DScatter scatter;
scatter.setFlags(scatter.flags() ^ Qt::FramelessWindowHint);

Now Q3DScatter is ready to receive data to be rendered. Add one series of 3 QVector3D items:

QScatter3DSeries *series = new QScatter3DSeries;
QScatterDataArray data;
data << QVector3D(0.5f, 0.5f, 0.5f) << QVector3D(-0.3f, -0.5f, -0.4f) << QVector3D(0.0f, -0.3f, 0.2f);
series->dataProxy()->addItems(data);
scatter.addSeries(series);

Finally you will need to set it visible:

scatter.show();

The complete code needed to create and display this graph is:

#include <QtDataVisualization>

int main(int argc, char **argv)
{
    qputenv("QSG_RHI_BACKEND", "opengl");
    QGuiApplication app(argc, argv);

    Q3DScatter scatter;
    scatter.setFlags(scatter.flags() ^ Qt::FramelessWindowHint);
    QScatter3DSeries *series = new QScatter3DSeries;
    QScatterDataArray data;
    data << QVector3D(0.5f, 0.5f, 0.5f) << QVector3D(-0.3f, -0.5f, -0.4f) << QVector3D(0.0f, -0.3f, 0.2f);
    series->dataProxy()->addItems(data);
    scatter.addSeries(series);
    scatter.show();

    return app.exec();
}

And this is what those few lines of code produce:

The scene can be rotated, zoomed into, and an item can be selected to view its position, but no other interaction is included in this minimal code example. You can learn more by familiarizing yourself with the examples provided, like the Scatter Example.

See also Q3DBars, Q3DSurface, Qt Data Visualization C++ Classes

This property holds the active x-axis.

Access functions:

• *axisX() const

• void setAxisX( *axis)

Notifier signal:

• void axisXChanged( *axis)

This property holds the active y-axis.

Access functions:

• *axisY() const

• void setAxisY( *axis)

Notifier signal:

• void axisYChanged( *axis)

This property holds the active z-axis.

Access functions:

• *axisZ() const

• void setAxisZ( *axis)

Notifier signal:

• void axisZChanged( *axis)

This property holds the selected series or null.

Access functions:

• *selectedSeries() const

Notifier signal:

• void selectedSeriesChanged( *series)

Constructs a new 3D scatter graph with optional parent window and surface format.

Destroys the 3D scatter graph.

Adds axis to the graph. The axes added via addAxis are not yet taken to use, addAxis is simply used to give the ownership of the axis to the graph. The axis must not be null or added to another graph.

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Adds the series to the graph. A graph can contain multiple series, but has only one set of axes. If the newly added series has specified a selected item, it will be highlighted and any existing selection will be cleared. Only one added series can have an active selection.

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Returns the list of all added axes.

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Returns the used z-axis.

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Releases the ownership of the axis back to the caller, if it is added to this graph. If the released axis is in use, a new default axis will be created and set active.

If the default axis is released and added back later, it behaves as any other axis would.

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Removes the series from the graph.

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Returns the list of series added to this graph.

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Sets axis as the active x-axis. Implicitly calls addAxis() to transfer the ownership of the axis to this graph.

If axis is null, a temporary default axis with no labels and an automatically adjusting range is created. This temporary axis is destroyed if another axis is set explicitly to the same orientation.

See Also▲

Sets axis as the active y-axis. Implicitly calls addAxis() to transfer the ownership of the axis to this graph.

If axis is null, a temporary default axis with no labels and an automatically adjusting range is created. This temporary axis is destroyed if another axis is set explicitly to the same orientation.

See Also▲

Sets axis as the active z-axis. Implicitly calls addAxis() to transfer the ownership of the axis to this graph.

If axis is null, a temporary default axis with no labels and an automatically adjusting range is created. This temporary axis is destroyed if another axis is set explicitly to the same orientation.

See Also▲