1/4/2024 0 Comments Qt charview exampleArea 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 Line and BarChart Example. 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 LineChart Example, SplineChart Example, and Dynamic Spline Example. In a line chart, the data points are connected by straight lines, whereas in a spline chart they are connected by a spline. 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. ChartThemeBrownSand antialiasing: true PieSeries 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. ![]() You just need to replace the final part for your special case. QChartView *chartView = new QChartView(chart) ĬhartView->setRenderHint(QPainter::Antialiasing) ![]() For instance, to display a line chart, you can do something like this: #include Ĭhart->setTitle("Simple line chart example") In your main file, you should always add QT_CHARTS_USE_NAMESPACE on top. Now, open your mainwindow.ui file or the file in which you want to insert the chart-view and follow the steps of the post you linked. Basically, open your project and add the Qt dependency: QT += charts Regarding your second problem, you don't edit your pro file in QtDesigner, you do it in QtCreator. ![]() You will find a combo-box where you can select the proper one. If you are compiling a desktop app, check that your default Kit or the one you are using is using the proper Qt Version. Check that you can see a modern version of Qt, QtCharts 2.0 was released with Qt 5.6.0, so that's your minimum version. Normally you should see the different versions of Qt that are installed. If you are using QtCreator those are the steps to update your build system: QtChart is available only in modern versions of Qt. That problems usually comes because you are configuring your project with a older version of qmake, frequenctly for Qt4.
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