Digonal-triangular triswirlprism

The digonal-triangular triswirlprism is a convex isogonal polychoron that consists of 6 triangular antiprisms, 9 rhombic disphenoids and 36 phyllic disphenoids of two kinds obtained as a subsymmetrical faceting of the hexagonal-enneagonal duoprism. It is the simplest nontrivial member of the duoprismatic swirlprisms.

Vertex coordinates
Coordinates for the vertices of a digonal-triangular triswirlprism, assuming that the edge length differences are minimized, are given as Cartesian products of the vertices of triangle T 1 and digon D 2 with length ratio 1:1:
 * T 1 × D 2,
 * T 3 × D 4 (T 1 and 'D 2'' both rotated 40 degrees),
 * T 5 × D 6 (T 1 and 'D 2'' both rotated 80 degrees).