var qcanvas = new Qcanvas(["qcanvas",300,200]);

var polygon = qcanvas.qpolygon.polygon({
	r:30,
	num:6,
	start:[100,100]
})

	var shape = qcanvas.qshape.shape({
				fillColor:'#999',
				opacity:0.3,
				points:function(){
					return [
						[80,10],
						[80,50],
						[150,70],
						[160,20],
					]
				}
			});