4 header
grid   a 8 b 5 c 4
size   x 8e-06 y 5e-06 z 4e-06
origin x 0.0 y 0.0 z 0.0
homogenization 1
 1  1  1  2  2  2  1  1
 1  1  1  2  2  2  2  1
 1  1  1  6  2  2  2  5
 1  1  1 10  2  2  2  9
 1  1  1 14  2  2  2 13
 1  1  1  2  2  2  2  1
 1  1  1  2  2  2  2  1
 1  1  1  6  2  2  2  5
 1  1  1 10  2  2  2  9
 1  1  1 14  2  2  2 13
 1  1  1  3  2  2  2  2
 1  1  1  3  2  2  2  2
 1  1  1  7  2  2  2  6
 1  1  1 11  2  2  2 10
 1  1  1 15  2  2  2 14
 1  1  1  4  2  2  2  3
 1  1  1  4  2  2  2  3
 1  1  1  8  2  2  2  7
 1  1  1 12  2  2  2 11
 1  1  1 16  2  2  2 15