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Thread: QwtPlotSpectrogram zoomed in

  1. #1
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    Default QwtPlotSpectrogram zoomed in

    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.

  2. #2
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    Default Re: QwtPlotSpectrogram zoomed in

    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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