Automatically generated mesh
       4
Reciprocal lattice
    0.25000000000000    0.25000000000000    0.25000000000000             2
   -0.25000000000000    0.25000000000000    0.25000000000000             2
    0.25000000000000   -0.25000000000000    0.25000000000000             2
   -0.25000000000000   -0.25000000000000    0.25000000000000             2
