Refresh axis scale drawing

[jmsbc]

Hi, I'm redrawing the scales on qwtPlot each time a user checks a button using QwtScaleDraw, but how do I refresh the axis scale drawing (or how do I get label() to be called?) I tried d_plot->replot(), d_plot->updateAxes(); but the axis labels did not change until i either zoom or pan the plot.

Thank you

class LatLonScaleDraw: public QwtScaleDraw
{
public:
  LatLonScaleDraw() {}
 
  virtual QwtText label(double v) const
  {
    if (...)
      return (QString::number(v));
    else 
      return (QString::number(v/2));
  }
};

class LatLonScaleDraw: public QwtScaleDraw
{
public:
  LatLonScaleDraw() {}
  
  virtual QwtText label(double v) const
  {
    if (...)
      return (QString::number(v));
    else 
      return (QString::number(v/2));
  }
};

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[Uwe]

QwtAbstractScaleDraw caches the tick labels. You can invalidate the cache with QwtAbstractScaleDraw::invalidateCache().

Uwe