Allows you to create a keypoint arc tangent to a curve.
To draw an arc tangent to a curve
As you drag the end point, the Arc Tangent to Curve tool displays the radius of the arc in current linear units.
Specifies the degree of the curve. The values range from 2 to 7. The default is 6.
Specifies the number of spans in the curve. The values range from 1 to 14. The default is 1.