Creates a smooth curve by drawing its shape, rather than working with edit points or CVs.
Specifies the initial position of the curve's pivot points (both rotation and scaling).
Origin – The pivot points are located at (0, 0, 0).
First CV – The pivot points are located at the position of the first CV, that is, the start of the curve. This is the default.
Last CV – The pivot points are located at the position of the last CV, that is, the end of the curve.
Curve center – The pivot points are located in the middle of the curve, based on arc length. (This is the same position as Snap to Center in the Curve Snap Options box.)
Bounding box center – The pivot points are located at the center of the curve's bounding box.