Creates a transient 3D circle object by specifying a center and radius.
This is a static method. | 
        
This is a static method. | 
        
| Type | Description | 
| Circle3D | Returns the new Circle3D object or null if the creation failed. | 
| Name | Type | Description | 
| center | Point3D | The center point of the circle. | 
| normal | Vector3D | The normal vector of the circle. The plane through the center point and perpendicular to the normal vector defines the plane of the circle. | 
| radius | double | The radius of the circle. |