Description
A full circle is defined by its CenterPoint and its Radius.

Circle is drawn in the plane that is defined by CenterPoint and ExtrusionVector.
Remarks
Ways to design a circle:
Center,Radius
With this method user sets the center point and the radius of the circle  | 
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2 Points
With this method user sets two opposite points of the circle.Basically the two points define the diameter of the circle(position and size).  | 
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3 Points
With this method user sets three points that belong to the circle.  | 
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