Use this method to pass a function to a receiver that should be called when the user makes a circular gesture on his screen.
In the following example a developer wants to move a cartoon of Michael Jackson from left to right across the screen, when a user make a circular gesture. He has prepared a HTML element with the image inside and he has given that element the ID "move-me".
var moveMe = document.getElementById( 'move-me' ),
left = 0;
'name' : 'Circle demo'
,'notification' : 'small'
.onCircle( function ( angle )
left += angle * 100;
moveMe.style.left = left + 'px';
Connect to the app in the iFrame below to check out the circle event.