------------------------------------------------- 8 [eight vertices] 4 0 5 -0 7 4 -2.83724e-16 8 4 -2.83724e-16 4 4 -2.83724e-16 [path through 4 faces: face 0, vertex 5, fraction along edge = 0; face 7, vertex 4, fraction along edge ~= 0; face 8, vertex 4, fraction along edge ~= 0; face 4, vertex 4, fraction along edge ~= 0] 1 1 6 1 2 1 6 1 2 6 0.5 3 0 5 -0 7 4 0.666667 9 7 0.5 1 0 5 -0 1 0 5 0 1 0 4 1 2 0 5 -0 7 4 0.5 -------------------------------------------------