The Ellipses 
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FX Draw provides three ellipse tools. As with circles, the tool you choose to draw a particular ellipse depends on what you know about the ellipse you wish to draw. Choosing the correct tool can make your job much easier.
An Axis and a Point on the Ellipse
This form of ellipse is defined by one of its axes (either major or minor) and one other point on the ellipse.
Drawing the ellipse:
Foci and a Point on the Ellipse
This form of ellipse is defined by its foci and one other point on the ellipse.
Drawing the ellipse:
Four Corners
The four corner circle will draw an ellipse inscribed in a rectangular region defined by four control points. This is how FX Draw V1 defined ellipses and any FX Draw 1 files will load with this type of ellipse.
To draw a four corner ellipse, you click and hold the left mouse button – move the mouse to the diagonally opposite corner and release the mouse button.
Available Parameters for Ellipses
$centre $majoraxis  length of major axis $minoraxis  length of minor axis $focus1 $focus2 $circumference $area $eccentricity
