POSCAR for generated by WannierTools
1.0
    3.000000    3.000000    0.000000
    0.000000    3.000000    0.000000
    0.000000    0.000000   12.000000
X     
     4
Direct
    0.000000    0.000000    0.000000        X
    0.000000    0.000000    0.250000        X
    0.000000    0.000000    0.500000        X
    0.000000    0.000000    0.750000        X
