html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

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

​

var rectangle = stage.rect(120, 50, 100, 100);

rectangle.fill('#90CAF9');

rectangle.rotate(31, 120, 50);

​

// Gets the rotation angle.

var angle = rectangle.getRotationAngle();

​

var simpleText = stage.text();

simpleText.x(60);

simpleText.y(30);

simpleText.text('Rotation angle is ' + angle);

simpleText.fontSize(12);