html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

var stage = acgraph.create('container');

​

var center = acgraph.math.coordinate(150, 100);

​

var simpleEllipse = stage.ellipse();

​

// Sets center.

simpleEllipse.center(center);

simpleEllipse.setRadius(100, 50);