How to clear the plotting area?

[cesroc]

Hello,

I have a problem. I'm using one plot area (QwtPlot) to plot four graphs, but when I don't need them anymore I would like to clean the plot area to add another graph. I would like to insert a button that when I press clean the plot area and I can add graph again. Is it possible? Anyone has an idea how to do that?

Thanks in advance
Regards

I found the solution.

[Spitfire]

QwtPlot::detachItems() is what you want.

Also remember to set QwtPlot::setAxisAutoScale() to true if you've used zoomer.