Sequence of images of the loci W=0. The sequence starts at A=0.6 and increases A by 0.05 until A=0.8 and then increases A by 0.01 until A=0.99 and then increases A by 0.001 until A=0.999.The scale changes so as to keep the outer and inner horizons fixed. Abscissa is x and ordinate is theta.