Creating a waterfall plot with the spectrogram

[twells5]

Can the labels on the x-axis scale major ticks be changed to a different string other than the bounding rect interval values it defaults to? My data is displayed fine now thanks to your tip above, but I would like the major tick labels to show something like ...50Mhz 100Mhz 150Mhz....? I don't want to change anything about how the spectrogram data is plotted, just the label strings displayed.

tim

[Uwe]

Can the labels on the x-axis scale major ticks be changed to a different string other than the bounding rect interval values it defaults to?

Derive from QwtScaleDraw and implement "QwtText YourScaleDraw::label((double) const".
F.e. see the cpuplot example.

Uwe