# type topo
# cell     1.000000     3.275200     1.000000    90.000000   100.993000    90.000000
4
  1 v     -0.047672    0.432981    0.245413   0                             3/10       3/9       1/4      1/22      1/14      1/12      4/13       4/3 
  2 v      0.452328    2.070581    0.245413   0                             4/13      4/12       2/4      2/22      2/14      2/12      3/22      3/12 
  3 v     -0.143017    2.842219    0.736238   0                             1/16      1/17       2/4      2/14       3/4      3/22      3/14      3/12 
  4 v      0.356983    1.204619    0.736238   0                             1/13      1/23      2/13      2/14       4/4      4/22      4/14      4/12