Circle Properties 
The Circle type exposes the following members.
Name  Description  

BoundingBox 
Gets the circle's 3d axis aligned bounding box.
 
Center 
Gets or sets the center point of this circle.
 
Circumference 
Gets or sets the circumference of this circle.
 
Diameter 
Gets or sets the diameter (radius * 2.0) of this circle.
Diameters should be positive values.
 
IsValid 
A valid circle has radius larger than 0.0 and a base plane which is must also be valid.
 
Normal 
Gets the normal vector for this circle.
 
Plane 
Gets or sets the plane of the circle.
 
Radius 
Gets or sets the radius of this circle.
Radii should be positive values.
 
Unset 
Gets a circle with Unset components.
