fix_modify AtC poisson_solver mesh create <nx> <ny> <nz> <region-id> <f|p> <f|p> <f|p>
 fix_modify AtC poisson_solver mesh create 10 1 1 feRegion p p p  
Creates a uniform mesh in a rectangular region
creates only uniform rectangular grids in a rectangular region
none
 1.6.1
 1.6.1