I'm looking to display QwtPlotSpectrogram always zoomed-in on initial display (the user can zoom out if needed). How do I do that? I can't see a easy way - maybe subclass and implement rescale? Please advice.
I'm looking to display QwtPlotSpectrogram always zoomed-in on initial display (the user can zoom out if needed). How do I do that? I can't see a easy way - maybe subclass and implement rescale? Please advice.
In general there is no zoomed in/out - you assign the scale ranges using QwtPlot::setAxisScale and that's it.
If you are thinking about creating an initial zoom stack for a QwtPlotZoomer you can use QwtPlotZoomer::setZoomStack().
Uwe
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