# type topo
# cell     1.837100     1.837100     1.000000    90.000000    90.000000    90.000000
4
  1 v      0.306245    0.306245    0.000000   0                             4/12       4/3      3/13      3/10      1/14      1/12       2/0       2/1 
  2 v      1.530855    1.530855    0.500000   0                             1/26      1/25      4/16      4/13      3/13      3/22      2/14      2/12 
  3 v      0.612305    1.224795    0.250000   0                             1/13      1/16      2/13       2/4      3/14      3/12      4/13      4/12 
  4 v      1.224795    0.612305    0.750000   0                             1/14      1/23      2/10      2/13      3/13      3/14      4/14      4/12