    3     4     4     24     0   meshio++ Z88 fixture
     1  6  +0.00000000E+00  +0.00000000E+00  +0.00000000E+00
     2  6  +0.00000000E+00  +0.00000000E+00  +1.00000000E+02
     3  6  +1.00000000E+02  +0.00000000E+00  +0.00000000E+00
     4  6  +1.00000000E+02  +0.00000000E+00  +1.00000000E+02
     1     2
     1     2
     2     2
     3     4
     3     2
     2     4
     4     4
     1     4
