XamShapeChart で損益分岐点データのバインド

public class BreakEvenItem
{
    public BreakEvenItem()
    {
        MarginalProfit = double.NaN;
        VariableCost = double.NaN;
        FixedCost = double.NaN;
        Revenue = double.NaN;
        Units = double.NaN;
    }

    public double FixedCost { get; set; }
    public double VariableCost { get; set; }
    public double Revenue { get; set; }
    public double Units { get; set; }
    public double MarginalProfit { get; set; }
}

public class BreakEvenList : List<BreakEvenItem>
{
    public BreakEvenList()
    {

    }
}

<Grid x:Name="layoutRoot">
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="*"/>
        <ColumnDefinition Width="Auto"/>
    </Grid.ColumnDefinitions>

    <ig:XamShapeChart Legend="{Binding ElementName=Legend}"
                      Brushes="#6E7F2AFA #80FF3100 #7B02B602 #F67222E7 #F4C62600 #F9808080 #F9282828 #EE029802 #EE078FE4"
                      Thickness="3"
                      YAxisTitle="Price ($)"
                      XAxisTitle="Number of Units"
                      Title="Projected Sales">
            <ig:XamShapeChart.ItemsSource>
                <local:BreakEvenList>
                    <local:BreakEvenItem FixedCost="1000" VariableCost="600" Revenue="1800" Units="100" />
                </local:BreakEvenList>
            </ig:XamShapeChart.ItemsSource>
        </ig:XamShapeChart>

        <ig:Legend x:Name="Legend"
                   Content="Legend"
                   Grid.Column="1" />

</Grid>

public MainWindow()
{
    InitializeComponent();

    var shapeChart = new XamShapeChart();
    var legend = new Legend() { Content = "Legend" };

    var data = new BreakEvenList();
    var item = new BreakEvenItem() { FixedCost = 1000, VariableCost = 600, Revenue = 1800, Units = 100 };

    data.Add(item);

    shapeChart.ItemsSource = data;
    shapeChart.Legend = legend;
    shapeChart.Thickness = 3;
    shapeChart.YAxisTitle = "Price ($)";
    shapeChart.XAxisTitle = "Number of Units";
    shapeChart.Title = "ShapeChart with BreakEvenData";
    shapeChart.Brushes = this.GetBrushCollection();

    Grid.SetColumn(legend, 1);

    layoutRoot.Children.Add(shapeChart);
    layoutRoot.Children.Add(legend);
}

private BrushCollection GetBrushCollection()
{
    var brushes = new BrushCollection();
    brushes.Add(new SolidColorBrush(Color.FromArgb(110, 127, 42, 250)));
    brushes.Add(new SolidColorBrush(Color.FromArgb(128, 255, 49, 0)));
    brushes.Add(new SolidColorBrush(Color.FromArgb(123, 2, 182, 2)));
    brushes.Add(new SolidColorBrush(Color.FromArgb(246, 114, 34, 231)));
    brushes.Add(new SolidColorBrush(Color.FromArgb(244, 198, 38, 0)));
    brushes.Add(new SolidColorBrush(Color.FromArgb(249, 128, 128, 128)));
    brushes.Add(new SolidColorBrush(Color.FromArgb(249, 40, 40, 40)));
    brushes.Add(new SolidColorBrush(Color.FromArgb(238, 2, 152, 2)));
    brushes.Add(new SolidColorBrush(Color.FromArgb(238, 7, 143, 228)));
    return brushes;
}

Public Sub New()
	InitializeComponent()

	Dim shapeChart = New XamShapeChart()
	Dim legend = New Legend() With
	{
		.Content = "Legend"
	}

	Dim data = New BreakEvenList()
	Dim item = New BreakEvenItem() With {
		.FixedCost = 1000,
		.VariableCost = 600,
		.Revenue = 1800,
		.Units = 100
	}

	data.Add(item)

	shapeChart.ItemsSource = data
	shapeChart.Legend = legend
	shapeChart.Thickness = 3
	shapeChart.YAxisTitle = "Price ($)"
	shapeChart.XAxisTitle = "Number of Units"
	shapeChart.Title = "ShapeChart with BreakEvenData"
	shapeChart.Brushes = Me.GetBrushCollection()

	Grid.SetColumn(legend, 1)

	layoutRoot.Children.Add(shapeChart)
	layoutRoot.Children.Add(legend)
End Sub

Private Function GetBrushCollection() As BrushCollection
	Dim brushes = New BrushCollection()
	brushes.Add(New SolidColorBrush(Color.FromArgb(110, 127, 42, 250)))
	brushes.Add(New SolidColorBrush(Color.FromArgb(128, 255, 49, 0)))
	brushes.Add(New SolidColorBrush(Color.FromArgb(123, 2, 182, 2)))
	brushes.Add(New SolidColorBrush(Color.FromArgb(246, 114, 34, 231)))
	brushes.Add(New SolidColorBrush(Color.FromArgb(244, 198, 38, 0)))
	brushes.Add(New SolidColorBrush(Color.FromArgb(249, 128, 128, 128)))
	brushes.Add(New SolidColorBrush(Color.FromArgb(249, 40, 40, 40)))
	brushes.Add(New SolidColorBrush(Color.FromArgb(238, 2, 152, 2)))
	brushes.Add(New SolidColorBrush(Color.FromArgb(238, 7, 143, 228)))
	Return brushes
End Function