<div dir="ltr"><div><div><div><div>Dear all,<br><br></div>I'm using Quantum Espresso to
generate electrostatic potential map in a cube file format, but I'm not
sure how the grid data is arranged in the generated cube file. Could
any one please help me to understand these data arrangement?<br><br></div>Following is the typical format of the cube file generated by QE.<br><br>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>. . .<br>. . .<br>. . .<br>0.64081E+00 0.61382E+00 0.47140E+00 0.26001E+00 -0.21555E-02 -0.28997E+00<br> -0.38866E+00 -0.24394E+00 0.57880E-02 0.22743E+00 0.40169E+00 0.53083E+00<br> 0.60580E+00 0.65390E+00 0.69301E+00 0.69229E+00 0.65015E+00 0.54336E+00<br> 0.34993E+00 0.50902E-01 -0.44137E+00 -0.96727E+00 -0.11918E+01 -0.92172E+00<br> -0.37681E+00 0.13135E+00 0.38158E+00 0.55621E+00 0.55922E+00 0.46486E+00<br> 0.34838E+00 0.27159E+00 0.27171E+00 0.34192E+00 0.43531E+00 0.53276E+00<br> 0.59288E+00 0.61644E+00 0.61473E+00 0.60359E+00 0.60592E+00 0.60949E+00<br> 0.62433E+00 0.64255E+00 0.64860E+00<br> 0.70080E+00 0.67077E+00 0.61035E+00 0.47476E+00 0.34814E+00 0.22304E+00<br> 0.17583E+00 0.15350E+00 0.20507E+00 0.30341E+00 0.40159E+00 0.49777E+00<br> 0.59071E+00 0.63163E+00 0.66700E+00 0.67871E+00 0.62231E+00 0.50685E+00<br> 0.26470E+00 -0.17819E+00 -0.94059E+00 -0.18196E+01 -0.22336E+01 -0.17183E+01<br> -0.82710E+00 -0.81849E-01 0.30226E+00 0.50429E+00 0.46462E+00 0.30476E+00<br> 0.11341E+00 -0.50208E-01 -0.57036E-01 0.88787E-01 0.29274E+00 0.45146E+00<br> 0.57254E+00 0.60594E+00 0.64278E+00 0.65667E+00 0.67023E+00 0.68294E+00<br> 0.67795E+00 0.68056E+00 0.70079E+00<br> 0.73881E+00 0.69610E+00 0.67892E+00 0.60824E+00 0.53767E+00 0.43530E+00<br> 0.32806E+00 0.23262E+00 0.21444E+00 0.22629E+00 0.29974E+00 0.41133E+00<br> 0.53259E+00 0.60957E+00 0.65101E+00 0.66303E+00 0.60060E+00 0.48269E+00<br> 0.23573E+00 -0.23816E+00 -0.10918E+01 -0.21159E+01 -0.26154E+01 -0.19800E+01<br> -0.95826E+00 -0.17024E+00 0.28844E+00 0.45849E+00 0.36552E+00 0.13739E+00<br> -0.20048E+00 -0.49471E+00 -0.50082E+00 -0.23353E+00 0.12178E+00 0.36455E+00<br> 0.56008E+00 0.62601E+00 0.67359E+00 0.70136E+00 0.69873E+00 0.71362E+00<br> 0.71695E+00 0.72155E+00 0.73383E+00<br> . . .<br> . . .<br> . . .<br>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br><br><br></div>Thanks in advances,<br></div>Reza</div>