QwtKnob - how to set the labels?

[nancy014]

I have a set of label values for the knob. The knob is set from 0-11 in steps of 1.
But each ticker on the knob needs to be labeled as given in a list { 1/8, 1/4, 1/2, 1, 2, 4, 8, 16, 32, 64, 128 }

When I return the value selected on the knob I only need the values representing 0-11 which has been set on the scale. But I would like the user to read them as given in the above list. Hence the labeling has to be different from the actual values on the knob.

Is there a way to do this?
Thanks

[Uwe]

Derive from QwtScaleDraw and re-implement YourScaleDraw::label(), where you return the strings ( mayby as rich text ) above. Then use QwtKnob::setScaleDraw().

Uwe