/// <summary> /// Gets the stack position. /// </summary> /// <param name="series">The series.</param> /// <param name="stackGroup">The stack group.</param> /// <returns></returns> public StackPosition <TDrawingContext>?GetStackPosition(IDrawableSeries <TDrawingContext> series, int stackGroup) { if (!series.IsStackedSeries()) { return(null); } var s = GetStacker(series, stackGroup); return(s == null ? null : new StackPosition <TDrawingContext> { Stacker = s, Position = s.GetSeriesStackPosition(series) }); }