# type topo
# cell     1.979500     3.500000     1.000000    90.000000    90.000000    90.000000
8
  1 v      0.711432    0.374850    0.178600   0                              5/9      2/10       2/9      6/13       6/4      1/14      1/12      7/13 
  2 v      0.278318    3.125150    0.678600   0                             1/16      1/17       6/7       5/4      5/13      2/14      2/12      8/13 
  3 v      1.268068    2.124850    0.821400   0                             7/14      4/13      4/14      8/22      8/13      3/14      3/12      5/13 
  4 v      1.701182    1.375150    0.321400   0                             3/13      3/12      8/22      7/13      7/22      4/14      4/12      6/13 
  5 v      1.268068    3.125150    0.821400   0                             1/17      2/22      2/13      3/13      6/16      6/17      5/14      5/12 
  6 v      1.701182    0.374850    0.321400   0                             1/13      1/22      2/19      4/13      5/10       5/9      6/14      6/12 
  7 v      0.711432    1.375150    0.178600   0                             1/13      3/12      4/13       4/4      8/13      8/12      7/14      7/12 
  8 v      0.278318    2.124850    0.678600   0                             2/13       3/4      3/13       4/4      7/13      7/14      8/14      8/12