coxeter.grf

     1    0.412000    0.984000     8     2     3
     2    0.494000    0.984000    14     1     5
     3    0.366000    0.926000     9     4     1
     4    0.388000    0.862000    10     7     3
     5    0.546000    0.926000    13     2     6
     6    0.518000    0.860000    12     5     7
     7    0.458000    0.818000    11     6     4
     8    0.152000    0.684000    25    20     1
     9    0.264000    0.682000    24    21     3
    10    0.354000    0.680000    23    15     4
    11    0.458000    0.670000    22    16     7
    12    0.554000    0.672000    28    17     6
    13    0.658000    0.668000    27    18     5
    14    0.774000    0.692000    26    19     2
    15    0.164000    0.450000    10    18    19
    16    0.228000    0.448000    11    19    20
    17    0.274000    0.390000    12    21    20
    18    0.242000    0.330000    13    15    21
    19    0.194000    0.278000    14    16    15
    20    0.146000    0.328000     8    17    16
    21    0.102000    0.390000     9    18    17
    22    0.668000    0.472000    11    27    24
    23    0.638000    0.416000    10    28    25
    24    0.656000    0.334000     9    26    22
    25    0.714000    0.270000     8    23    27
    26    0.798000    0.326000    14    24    28
    27    0.830000    0.408000    13    25    22
    28    0.754000    0.466000    12    26    23