Plot Picker x=0

Hi,

I have now integrated a PlotPicker in my QwtPlot and coded a function which should set the picked x and y location in two QLabes:

Code:

---

void MainWindow::valuePlotPickerSelected( const QwtDoublePoint& point)
{
	QString temp; temp.setNum(point.x());
	valuePlotX->setText(temp); temp.setNum(point.y());
	valuePlotY->setText(temp);
}

---

This seems to work most of the time. But when I don't replot or even sometimes when i replot it sets the x value to 0.
Y value is allways correct, but I sometimes can pick many points and it is sheer luck if the x value is correct or 0.

What could the problem be? Is it a problem, that there can be less x values than I have pixels on the QwtPlot?

Thanks for taking the time!
sun

Assuming, that MainWindow::valuePlotPickerSelected is connected to the selected signal of a QwtPlotPicker in PointSelection mode: in QwtPlotPicker::end() line 289 the pixel position is translated into plot coordinates. Check, what's going wrong there.

Uwe

Thanks for the fast help!

I'll try it sometime. It's not first priority at the moment.