Ellipse by Bounding Box #
Set the start point, move and define the end point of the diagonal. The ellipse is inscribed in the rectangle defined by its diagonal.
Ellipse by Center and Radii #
Click to set the center of the ellipse, move and click to define its first radius; move again and click to set its second radius. The center can also be defined by using the X, Y coordinates and the radii can be defined by pressing the L key during their construction.
Quarter of Ellipse #
This method allows you to draw quarters of ellipse by clicking on its two vertices.