# type topo
# cell     2.000000     2.000000     1.633000    90.000000    90.000000   120.000000
5
  1 v     -0.500000    0.866025    0.000000   0                             2/13       2/4       3/4      3/16      4/12      4/13       5/3       5/4 
  2 v      0.500000    0.866025    0.000000   0                             1/13      1/22      3/13      3/16      4/12      4/13      5/13      5/12 
  3 v      1.000000    0.000000    0.000000   0                             1/22      1/10      2/13      2/10      4/10       4/9      5/12      5/13 
  4 o     -0.000100    1.154758    0.816500   1                             1/14      1/13      2/14      2/13      3/16      3/17 
  5 o      1.000100    0.577293    0.816500   1                             1/23      1/22      2/13      2/14      3/14      3/13