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How Qchart update multiple series in a signle operation and cause a single repaint of the chart



  • Hi, there is one chart and 24 series in the chart. How could I update all the 24 series in a signle operation and cause a single repaint of the chart?

    I tried to use QAbstractTableModel, it's too slow. In my test, if I want to show 800 points each series in the chart, the refresh frequency after using dataChanged.emit in QAbstractTableModel may be low to 1Hz...

    How could I improve it up to 50Hz or upper

    Thanks.


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