Qwt append point to plot

Question

I'm writing my first program using Qwt. I've created a QwtCurve object and I used QwtCurve::setData to add my points. Then I attached the plot to my curve and replotted the graph to see the curve.

I have to add a point every 500ms, is there a way to avoid replotting the whole thing every time I add a point?

Answer 1

You may want to consider using QCustomPlot. It's well documented and easy to implement.

If you go this route, the addData() function will do what you are asking.