AXFORM - Generates multiple files from an area
   AXFORM sarea file <keywords>
Parameters:
   sarea | digital area number
   file | output file name; 8 alphanumeric characters maximum;
          no extension can be specified
Keywords:
   BAND=    | band numbers for a multibanded sarea (def=first band)
       =ALL | all bands of sarea
   FLIP=YES | flip bytes (def=NO)
   FORMAT=I1 | output elements are 1 byte integers
         =I2 | output elements are 2 byte integers
         =I4 | output elements are 4 byte integers
   FTYPE=BIN  | binary files (as specified in FORMAT keyword) (def)
        =ASC  | ASCII text files (w/ 25I10 format)
        =BOTH | both file types
   MISS= | missing data value for .LAT/.LON extension files
           (def=65535 Hex FFFF)
   NAV=YES inc | produce .LAT/.LON data files with an element
                 increment; these files contain LAT/LON stored as
                 degrees*100 (2 bytes per element); the increment is the
                 the number of data elements associated with each LAT/LON
                 element (def=NO 1)
   UNIT=    | calibration units of output files (def=cal units of sarea)
       =ALL | all calibration units defined by sarea
Remarks:
   AXFORM creates a set of files which contain data from sarea. These
   files maybe ported to other non-McIDAS systems. Data is represented
   as 2 dimensional arrays of binary or ASCII fields whose dimensions
   are those of the original sarea lines/elements.

   An ASCII output text file documents the format of the output data files.
   It contains a listing for each of the data files generated. Output files
   are assigned unique extensions:
     .HDR (header file) - This file contains ASCII text describing sarea
                          and the contents of the output data files.
     .nnn (data files) - These files contain binary data for a single
                         calibration of a specific band.
                         (nnn ranges from 001 to 999)
     .Ann (data files) - These files contain ASCII data for a single
                         calibration of a specific band.
                         (nn ranges from 01 to 99)
     .LAT (latitude file) - If NAV=YES, binary file contains a 2
                            dimensional array of latitudes corresponding
                            to the elements within the output data files.
     .LON (longitude file) - If NAV=YES, binary file contains a 2
                             dimensional array of longitudes corresponding
                             to the elements within the output data files.
     .ALT (latitude file) - If NAV=YES, ASCII file contains a 2
                            dimensional array of latitudes corresponding
                            to the elements within the output data files.
     .ALN (longitude file) - If NAV=YES, ASCII file contains a 2
                             dimensional array of longitudes corresponding
                             to the elements within the output data files.

   Specify FLIP=YES when the byte order on the destination system
   is the reverse of the source system (e.g., PS/2 -> RISC 6000).

   Defaults for the FORMAT keyword (assume FTYPE=BIN or BOTH):
     if: UNIT=BRIT   then: FORMAT=I1 (1 byte integer)
              TEMP                I2 (2 byte integer)
              RAD                 I4 (4 byte integer)
              ALB                 I2 (2 byte integer)
              RAW                  #bytes/element from sarea directory
              other               I1 (1 byte integer)
   FORMATs smaller than the default size are NOT allowed.
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