Use Ellipse to create elliptical and circular splines.
All spline based shapes share the same General Parameters. See Splines for an explanation of these parameters.
The Ellipse shape uses the standard creation methods of Center or Edge. Most spline based shapes share the same Creation Method parameters. See Splines for an explanation of these parameters.
Once you have created an Ellipse, you can make changes using the following parameters:
Length: Set this to specify the size of the Ellipse along the local Y axis.
Width: Set this to specify the size of the Ellipse local X axis.