question: public XYAreaRenderer2 ( XYToolTipGenerator labelGenerator , XYURLGenerator urlGenerator ) { super ( ) ; this . showOutline = false ; setBaseToolTipGenerator ( labelGenerator ) ; setURLGenerator ( urlGenerator ) ; GeneralPath area = new GeneralPath ( ) ; area . moveTo ( 0.0f , - 4.0f ) ; area . lineTo ( 3.0f , - 2.0f ) ; area . lineTo ( 4.0f , 4.0f ) ; area . lineTo ( - 4.0f , 4.0f ) ; area . lineTo ( - 3.0f , - 2.0f ) ; area . closePath ( ) ; this . legendArea = area ; }
target:  Constructs a new renderer.