mesh3d
dimension
2

# surfnr    bcnr   domin  domout      np      p1      p2      p3
surfaceelementsgi
2
       1       1       0       0       3       1       2       3       1       1       1
       1       1       0       0       3       3       4       1       1       1       1


#  matnr      np      p1      p2      p3      p4
volumeelements
0


   surf1   surf2      p1      p2
edgesegmentsgi2
4
       1       0       1       2        0        0
        0        0        1            0        1            1
       2       0       2       3        0        0
        0        0        2            0        2            1
       3       0       3       4        0        0
        0        0        3            0        3            1
       4       0       4       1        0        0
        0        0        4            0        4            1


#          X             Y             Z
points
4
    0.000000      0.000000      0.000000
    1.000000      0.000000      0.000000
    1.000000      1.000000      0.000000
    0.000000      1.000000      0.000000