Area and Scatter ChartsĪrea charts present data as an area bound by two lines, whereas scatter charts present data as a collection of points.Īn area chart is implemented by using the QAreaSeries class or the AreaSeries QML type. For an example of combining a line chart with a bar chart and using a common axis for both, see Combining Line and BarChart. The spline is drawn by using QPainterPath.Ī line chart is implemented by using the QLineSeries class or the LineSeries QML type.Ī spline chart is implemented by using the QSplineSeries class that inherits QLineSeries or the SplineSeries type that inherits LineSeries.įor more information, see Creating Line Charts and Creating Spline Charts. In a line chart, the data points are connected by straight lines, whereas in a spline chart they are connected by a spline.
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Line and spline charts present data as a series of data points connected by lines. You can combine different types of series in one chart. You can also manipulate slices dynamically, like append a slice or set a slice exploded othersSlice = pieSeries. Property variant othersSlice: 0 PieSeries Id: chart title: "Top-5 car brand shares in Finland" anchors.fill: parent legend.alignment: Qt. Charts are created by using an instance of a series class and adding it to a QChart or ChartView instance. The Qt Charts module provides the following chart types:Įach chart type is represented by an QAbstractSeries derived class or AbstractSeries derived type in QML. Model mappers can be either horizontal or vertical. Model mappers enable using a data model derived from the QAbstractItemModel class as a data source for a chart. The look and feel of charts can be customized by using themes, modifying colors and properties, hiding chart components, or animating charts. Some chart components can also be presented as polar charts by using the the QPolarChart class that is a specialization of the QChart class or the PolarChartView QML type that is a specialization of the ChartView type. In QML, charts are displayed using the ChartView type. A simpler solution is to display a chart in a layout by using the convenience class QChartView instead of QChart. QChart is a QGraphicsWidget that can be shown in a QGraphicsScene. The QChart class manages the graphical representation of different types of series and other chart related objects, such as legend and axes. The chart components can be used as QWidget or QGraphicsWidget objects or QML types. Qt Charts uses the Graphics View Framework for ease of integration.
Qt Charts enables creating stylish, interactive, data centric user interfaces.
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