section axis=0 alpha=0.0 : none
section axis=0 alpha=0.5 : none
section axis=0 alpha=1.0 : none
section axis=0 alpha=1.5 : none
section axis=0 alpha=2.0 : none
section axis=1 alpha=0.0 : none
section axis=1 alpha=0.5 : none
section axis=1 alpha=1.0 : none
section axis=2 alpha=0.0 : none
section axis=2 alpha=0.5 : none
section axis=2 alpha=1.0 : none
done box=(3, 2, 2) t=0.1
