Base type for all Qt Chart series types. More...
|Import Statement:||import QtCharts 2.2|
This type cannot be instantiated directly. Instead, one of the following derived types should be used to create a series: LineSeries, AreaSeries, BarSeries, StackedBarSeries, PercentBarSeries, HorizontalBarSeries, HorizontalStackedBarSeries, HorizontalPercentBarSeries, PieSeries, ScatterSeries, SplineSeries, BoxPlotSeries, or CandlestickSeries.
name : string
The name of the series. It is displayed in the legend for the series and it supports HTML formatting.
opacity : real
The opacity of the series. By default, the opacity is 1.0. The valid values range from 0.0 (transparent) to 1.0 (opaque).
type : enumeration
The type of the series.
||A line chart.|
||An area chart.|
||A vertical bar chart.|
||A vertical stacked bar chart.|
||A vertical percent bar chart.|
||A pie chart.|
||A scatter chart.|
||A spline chart.|
||A horizontal bar chart.|
||A horizontal stacked bar chart.|
||A horizontal percent bar chart.|
||A box plot chart.|
||A candlestick chart.|
useOpenGL : bool
Specifies whether or not the series is drawn with OpenGL.
Acceleration using OpenGL is supported only for LineSeries and ScatterSeries. A line series used as an edge series for a AreaSeries cannot use OpenGL acceleration. When a chart contains any series that are drawn with OpenGL, an additional transparent child node is created for the ChartView node. The accelerated series are not drawn on the ChartView node, but are instead drawn on the child node.
Performance gained from using OpenGL to accelerate series drawing depends on the underlying hardware, but in most cases it is significant. For example, on a standard desktop computer, enabling OpenGL acceleration for a series typically allows rendering at least hundred times more points without reduction on the frame rate. Chart size also has less effect on the frame rate. The biggest performance sink when rendering ChartView is rendering and uploading the underlying chart texture. If the underlying chart itself is not changing rapidly, significant extra performance is gained from not needing to regenerate the chart texture for each frame.
The OpenGL acceleration of series drawing is meant for use cases that need fast drawing of large numbers of points. It is optimized for efficiency, and therefore the series using it lack support for many features available to non-accelerated series:
The default value is
visible : bool
Visibility of the series. By default,
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