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Chart for WPF and Silverlight / Chart Features / Interaction / Scaling a Bubble Chart While Zooming
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    Scaling a Bubble Chart While Zooming
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    To scale the Bubble chart while zooming, adjust the scale in the PlotElementLoaded event like the following:

    C#
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    var ds = new BubbleSeries()
    {
    XValuesSource = new double[] { 1, 2, 3, 4 },
    ValuesSource = new double[] { 1, 2, 3, 4 },
    SizeValuesSource = new double[] { 1, 2, 3, 4 },
    };
    
    ds.PlotElementLoaded += (s, e) =>
    {
    var pe = (PlotElement)s;
    pe.RenderTransform = new ScaleTransform()
    {
    ScaleX = 1.0 / chart.View.AxisX.Scale,
    ScaleY = 1.0 / chart.View.AxisY.Scale
    };
    pe.RenderTransformOrigin = new Point(0.5, 0.5);
    };
    
    chart.Data.Children.Add(ds);
    chart.ChartType = ChartType.Bubble;
    
    chart.Actions.Add(new TranslateAction());
    chart.Actions.Add(new ScaleAction() { Modifiers = ModifierKeys.Control });
    

     

     

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