Hello. I have to do the following: when I point to the value (big dot - qwtSymbol) a coordinate of this value will be appeared . I found on the internet the method realization and I change it a little:
Code:
double distance = 1e99; int point_index = first_c->closestPoint(QPoint(ev->x(), ev->y()), &distance); // for my one of my curves tooltip->attach(funPlot); funPlot->replot(); }
But I don't understand how to call this function. I thought I could call it through the signal-slot construction, but I can't pick up appropriate signal.
