You just need to use Raphael's ellipse: DEMO
var r = new Raphael(10,10, 500, 500);
var e = r.ellipse(50, 50, 40, 20).attr({fill: 'yellow', stroke:"red"});
Here ellipse(x, y, rx, ry)
- x coordinate of the centre
- y coordinate of the centre
- horizontal radius
- vertical radius
Hope this is what you wanted.