anchor.diff:          call get_command_argument(i,tag)
           read (tag,*) z_beg
           isZDefined = .true.
  -        grid_mode = 'uniform'
  +        if (grid_mode.ne.'cross_section') then
  +            grid_mode = 'uniform'
  +        endif
           ! Second argument (ending z value) is optional
           i = i + 1
           if (i.gt.narg) then
  
positive.code: 
  
  ! If only first value is set, then make sure we only print it
  if (dabs(end).gt.1.0d19) then
      if (n.gt.1.or.dabs(d).lt.1.0d19) then
          write(stderr,*) 'get_spacing: only first ',trim(dim),' value defined, setting n',trim(dim),' to 1'
      endif
      n = 1
  
negative.code: isZDefined = .false.
  
  ! x parameters
  x_beg = -1.0d99
  x_end = -1.0d99
  x_inc = -1.0d20
  nx = -1
  
  ! y parameters
  y_beg = -1.0d99
  y_end = -1.0d99
  y_inc = -1.0d20
  ny = -1
  
  ! z parameters (uniform)
  z_beg = -1.0d99
  z_end = -1.0d99
  z_inc = -1.0d20
  nz = -1
  
  