# type topo
# cell     1.836900     1.000000     1.936600    90.000000   108.424000    90.000000
4
  1 v      0.459245    0.625100    0.153234   0                             2/13      2/16      3/12       3/3      1/16      1/10      4/13      4/12 
  2 v      1.071627    0.125100    0.765435   0                             1/13      1/10      4/10      4/19      2/10      2/16      3/12      3/13 
  3 v      0.765599    0.374900    1.684103   0                             1/14      1/23      2/14      2/13      4/13      4/10      3/16      3/10 
  4 v      0.153218    0.874900    1.071902   0                             1/13      1/14      2/16       2/7      3/13      3/16      4/16      4/10