I am having trouble determining what the end position of an arc is. I would like to determine the coordinates of the end point or start point and then place a textbox or other shape at those same coordinates. Of the attributes of an arc - which describes the top and left of the end point? The top and left that I can obtain seem to provide the position of the top left corner of the bounding box/border of the shape - which may be far from the end point of the actual arc.

Thanks for any assistance with this question.