title: WPF element positioning on a Canvas
body: <p>I have a point on a canvas that I want to place an ellipse. I want the centre of the ellipse to be over this point. At the moment the top left most edge of the ellipse is over this point.</p>
  
  <p>I know I can shift the ellipse programmatically on the canvas but I was wondering if there is a way to tell WPF to centre the element over the point instead of sizing it from the top left???</p>