How Qchart update multiple series in a signle operation and cause a single repaint of the chart
jiong last edited by
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.emitin QAbstractTableModel may be low to 1Hz...
How could I improve it up to 50Hz or upper