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how to change the color of several specified bar-element in QBarSet?

  • When I use barSeries in QtChart, I want to make several bars to have different colors so that these bars can indicate something happens.
    if QBarSet->setcolor is called, all bars' color are changed, but I only want the specified bars change color and others stay the same, is there a way to achieve this?

  • I think I know how to do it now
    use stackbarSeries, and always has two barsets, one appends "0" and the other appends target value

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