QwtPlot axis labels

[Uwe]

This is your code:

class YourScaleDraw: public QwtScaleDraw
{
public:
    virtual QwtText label( double v ) const
    {
        return QwtScaleDraw::label( pcmToMS( v ) );
    }
};
 
plot->setAxisScaleDraw( ..., new YourScaleDraw() );

class YourScaleDraw: public QwtScaleDraw
{
public:
    virtual QwtText label( double v ) const
    {
        return QwtScaleDraw::label( pcmToMS( v ) );
    }
};

plot->setAxisScaleDraw( ..., new YourScaleDraw() );

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If you want to have ticks aligned to ms values read my first answer or set your ticks manually ( what is no option if you want to offer a navigation like zooming/panning to your users ) with QwtPlot::setAxisScaleDiv().

HTH,
Uwe