Hi all again. Could you, please, help me?

For default QwtPlot changes (curve xy values/pixels) proportian.

So if I, for example, have form with size of 600x600 pixels and y scale of plot has values from 100 to 200 than i resize from to full extent or to 600x800 pixels y scale still will show values from 100 to 200 (curves will redraw accordingly of course). For me is better to set static proportion -> in this example yscale will show ~75 to 200 and curves will be same.

Is it possible to switch to this mode just changing some parameters in plot or zoomer or it's more complicated?

Sorry if I described things not so clearly.