Can't access plane to ratate it

programming flash
1

Trying some tutorials about Papervision3d. Found a problem when trying to rotate the plane.

Could someone please help me on this one?

the AS conde below:


package {
	import flash.events.Event;
	
	import org.papervision3d.materials.ColorMaterial;
	import org.papervision3d.objects.primitives.Plane;
	import org.papervision3d.view.BasicView;

	public class BitmapAssetMaterialExample extends BasicView
	{
		public function BitmapAssetMaterialExample()
		{
			stage.frameRate = 40;
			
			init();
			startRendering();
		}
		
		private function init():void
		{
			
			var material:ColorMaterial = new ColorMaterial(0x66ff00);
			var plane:Plane = new Plane(material,150,93,2,2);
			scene.addChild(plane);
		}
		
		override protected function onRenderTick(e:Event=null):void
		{
			
			super.onRenderTick();
			
		}
		
	}
}