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wpf - How to change x,y origin of canvas to bottom left and flip the y coordinates?

I have a bunch of data points that I would like to two-way bind to points on a canvas.

The points assume larger y values are reflected in an upwards direction like most math graphs.

How do I change the x,y origin of the canvas to the bottom left corner and reverse it's interpretation of the y coordinate?

(I would like to stay in XAML)

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<Canvas>
    <Canvas.LayoutTransform>
        <ScaleTransform ScaleX="1" ScaleY="-1" CenterX=".5" CenterY=".5" />
    </Canvas.LayoutTransform>
</Canvas>

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