0 0 z a
1/2 1/2 -z a
0 1/2 z b
1/2 0 -z b
1/4 1/4 0 c
3/4 3/4 0 c
1/4 3/4 0 c
3/4 1/4 0 c
1/4 1/4 1/2 d
3/4 3/4 1/2 d
1/4 3/4 1/2 d
3/4 1/4 1/2 d
0 y z e
0 -y z e
1/2 y+1/2 -z e
1/2 -y+1/2 -z e
x 0 z f
-x 0 z f
-x+1/2 1/2 -z f
x+1/2 1/2 -z f
x y z g
-x -y z g
-x+1/2 y+1/2 -z g
x+1/2 -y+1/2 -z g
-x+1/2 -y+1/2 -z g
x+1/2 y+1/2 -z g
x -y z g
-x y z g