code: public void setShape(double width , double height ) {
  		points2D3D.get(0).location.set(-width/2,-height/2,0);
  		points2D3D.get(1).location.set(-width/2, height/2,0);
  		points2D3D.get(2).location.set( width/2, height/2,0);
  		points2D3D.get(3).location.set( width/2,-height/2,0);
  	}
docs: Specifes how big the fiducial is along two axises
  @param width Length along x-axis
  @param height Length along y-axis