The first and third rotations each occur about one segment of self-intersection. Notice that the Roman Surface displays a 3-fold symmetry. Grid skeleton of the surface executing the same rotations as in the previous movie. Notice the 3-fold symmetry of the fold curves. Bands of the surface rotating in 3 dimensions.
Color is assigned according to v parameter.
Animation showing the surface at sequential heights with respect to a vector. The first frame shows a Whitney Umbrella .