WRITE

        [GREG2\]WRITE Item File_Name [/TABLE [X Nx] [Y Ny] [Z Nz]]

    This command is used to saves some GreG internal buffers  on  an  output
    file for later processing. The item specify what is to be saved, and the
    format of saving, and can be :
      - POLYGON    Saves the current polygon in formatted way on two columns
        easily  readable  by  command  COLUMN  or POLYGON later. The default
        extension is .POL.
      - RGDATA     Saves the current Regular Grid  array  on  a  RGDATA-like
        output  file  (to  preserve  the result of a masking, or of a random
        mapping interpolation). The default extension is .DAT.
      - IMAGE      Same as above but uses the more  efficient  and  complete
        IMAGE data format of GILDAS. The default extension is .GDF.
      - COLUMN     Saves the current X Y Z buffers  on  a  formatted  output
        file (after a SORT or a STRIP for example). The default extension is
        .DAT.

    [GREG2\]WRITE COLUMN File_Name [NEW]/TABLE [X Nx] [Y Ny] [Z Nz]

    also saves the X Y Z buffers but on column  Nx,Ny,Nz  of  the  specified
    output  table (GILDAS format). A new table is created if argument NEW is
    specified, otherwise the table must already exists.  The  table  may  be
    expanded  if  any  of Nx,Ny or Nz exceed the table column number ; exact
    match on the number of lines is required. The  tables  can  be  read  by
    command COLUMN/TABLE.