Lets you create a keypoint ellipse by drawing the two major axis points, or by drawing a center point and a major axis point.
Axis endpoints – Draw the ellipse by specifying both endpoints of the major axis.
Center and end point – Draw the ellipse by specifying the center and one endpoint of the major axis.
The ratio of the length of the minor axis to the major axis.
For example, a value of 0.5 produces an ellipse half as tall as it is wide. A value of 1.0 produces a circle.
The number of degrees of the ellipse that is drawn.
For example, a value of 180 degrees produces half of a full ellipse. A value of 90 degrees produces a quarter ellipse.