Half of each of the three segments of self-intersection are visible. Also visible is the triple point, which occurs where the three segments intersect. Three of the pinch points are visible. The triple point and five of the pinch points are visible. Two of the segments of self-intersection are almost entirely visible, and half of the third segment is visible.
Color is assigned according to v parameter.
This is the same view depicted in the first picture. These show the surface sliced open. Color is assigned according to v parameter. All six pinch points are visible. The surface has been cut open above the triple point to reveal the structure of the double-point segments.