# type topo
# cell     1.870800     1.309300     1.414200    90.000000    90.000000    90.000000
4
  1 v      0.334125    0.327325    0.176775   0                             2/12      2/10       2/9      2/13       3/0       3/3      4/13       4/4 
  2 v      0.601275    0.981975    0.883875   0                             1/14      1/16      1/17      1/13      3/13       3/4      4/13      4/16 
  3 v      1.536675    0.981975    1.237425   0                             1/26      1/23      2/13      2/22      4/17      4/14      4/13      4/16 
  4 v      1.269525    0.327325    0.530325   0                             1/13      1/22      2/13      2/10       3/9      3/12      3/13      3/10