Automatically generated mesh
       6
Reciprocal lattice
    0.00000000000000    0.00000000000000    0.00000000000000             1
    0.50000000000000    0.00000000000000    0.00000000000000             2
    0.00000000000000    0.50000000000000    0.00000000000000             1
    0.00000000000000    0.00000000000000    0.50000000000000             1
    0.50000000000000    0.00000000000000    0.50000000000000             2
    0.00000000000000    0.50000000000000    0.50000000000000             1