Draw an ellipse with given semimajor and semiminor axes, centered on (x, y). @param x the x-coordinate of the center of the ellipse @param y the y-coordinate of the center of the ellipse @param semiMajorAxis is the semimajor axis of the ellipse @param semiMinorAxis is the semiminor axis of the ellip
(double x, double y, double semiMajorAxis, double semiMinorAxis)