### - f -

- FilterPoints : QwtPlotCurve
- FilterPointsAggressive : QwtPlotCurve
- FirstDay : QwtDate
- FirstThursday : QwtDate
- Fitted : QwtPlotCurve
- Fitting : QwtPlotRescaler
- Fixed : QwtPlotRescaler
- FixedColors : QwtLinearColorMap
- FixedSampleSize : QwtPlotAbstractBarChart
- Flat : QwtKnob
- Floating : QwtScaleEngine
- FrameWithScales : QwtPlotRenderer
- FullRepaint : QwtPlotDirectPainter