1) If you want to display a curve with gaps overload QwtPlotCurve::drawXY ( don't use markers ).
2) By curve->setItemAttribute(QwtPlotItem::Legend, ...) you can control if a curve ( or any other QwtPlotItem ) should have an entry on the legend.
Uwe
Expert
Re: How to make curves with empty intervals in them?
1) If you want to display a curve with gaps overload QwtPlotCurve::drawXY ( don't use markers ).
2) By curve->setItemAttribute(QwtPlotItem::Legend, ...) you can control if a curve ( or any other QwtPlotItem ) should have an entry on the legend.
Uwe
alex_sh (20th September 2010)
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