Transform grid coverage and spacing. (Command being sunset)
XFGRID grid1 grid2 <Keywords>
| grid1 | starting grid number to transform |
| grid2 | ending grid number to transform (default=grid1) |
| LAT=min max | intervals for latitude lines |
| LON=min max | intervals for longitude lines |
| INT=latinc loninc | grid point spacing (default=1 latinc) |
| GRIDF=sgridf dgridf | source and destination grid files (default=current) |