HI all,
I have several QwtPlotCurve objects and a QwtPlotPicker object on my graph, QwtPlotPicker send the x,y value inside the canvas where I click , and I would like to know if there is a way to retrieve the real values of the curve using the values (coordinates x,y ) send by QwtPlotPicker object.
look at the picture attached, when I click inside the canvas I need to display next to each curve the value where the mark intersect the curve.
If someone had done something like this I really appreciate any help.
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