# type topo
# cell     2.000000     2.000000     1.633000    90.000000    90.000000   120.000000
6
  1 v      0.000000    0.577466    0.408250   0                             2/13       2/1      3/13      3/10      5/13      5/12       6/3       6/4 
  2 v      0.499900    1.443318    0.408250   0                             1/13      1/25      3/13      3/22      4/13      4/12      6/16      6/15 
  3 v     -0.499900    1.443318    0.408250   0                             1/13      1/16      2/13       2/4       4/4       4/3      5/16      5/15 
  4 v      1.000000    1.154585    1.224750   0                             2/13      2/14      3/22      3/23      5/13      5/25      6/13      6/16 
  5 v      0.500100    0.288733    1.224750   0                             1/13      1/14      3/10      3/11      4/13       4/1      6/13       6/4 
  6 v      1.499900    0.288733    1.224750   0                             1/23      1/22      2/10      2/11      4/13      4/10      5/13      5/22