Defines the default Ellipse prototype.
See the dojox/gfx/_base.defaultEllipse reference documentation for more information.
The X coordinate of the center of the ellipse, default value 0.
The Y coordinate of the center of the ellipse, default value 0.
The radius of the ellipse in the X direction, default value 200.
The radius of the ellipse in the Y direction, default value 200.
Specifies that this object is a type of Ellipse, value is 'ellipse'