#517 – XAML Output when Drawing with the Pen Tool
March 19, 2012 1 Comment
When you use the Pen tool in Blend to draw a path, Blend will generate a Path element in the corresponding XAML for the window or page. The data representing the geometry of the actual path is located in the Data attribute of the Path element.
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2,000 Things You Should Know About WPF 
I like your posts, but interesting would’ve been a short explanation about how to read the Data content. Here is the link to the MSDN page: http://msdn.microsoft.com/en-us/library/ms752293.aspx
M: Move Command (= Move Pen to start point “x1,y1”)
C: Cubic Bezier Curve Command (= Add Control Points, “x2,y2 x3,y3 xi,yi”)