# type topo
# cell     1.154700     1.154700     1.154700    90.000000    90.000000    90.000000
4
  1 v      0.000000    0.866025    0.144338   0                             2/13      2/12      2/15       2/3       2/4       2/6       2/7      2/16 
  2 v      0.577350    0.288675    0.721688   0                             1/13      1/14      1/11      1/23      1/22      1/20      1/19      1/10 
  3 v      0.577350    0.866025    0.433013   0                             4/13      4/16      4/15      4/24      4/22      4/21      4/25      4/12 
  4 v      0.000000    0.288675    1.010363   0                             3/13      3/10      3/11       3/2       3/4       3/5       3/1      3/14