Circle

        Creates a circle.

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        Command: 

         Menu【Draw > Circle】                  Curve Bar                     Shortcut: C 

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  Center Radius Circle

Steps:

1.Pick the center of the circle.

2.Type the radius of the circle.

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  Center Diameter Circle

Steps:

1.Pick the center of the circle.

2.Type the diameter of the circle.

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   Points Circle

Steps:

1.Pick the first point of the circle.

2.Pick the second point of the circle.

3.Pick the third point of the circle.

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 Tangential Radius

Steps:

1.Pick the first tangent curve.

2.Pick the second tangent curve(or type the radius of the arc)

3.Type the radius of the circle.