                                  [JS_DDB2RAW]
                          (Version 1.0, 28 May 1998)

Program Description:

  Allows the user to convert a Jumpstart Collection Dynamic DataBase 
  (DDB) complex stripmap image to RAW binary format + ASCII Phoenix
  Header. The output data type can be either the original complex
  form, 32-bit float magnitude, or 8-bit magnitude.  The user can 
  output the whole image or a specific portion (tile) of the image.



Program Usage:

     js_ddb2raw -i <infile> -o <outfile> -d [0-2] -t [0-7]

        Options: -d [0-2] = Output datatype, 0=complex, 1=mag32, 2=mag8 [Def:1]
                 -t [0-7] = Convert specific tile of data
                            (ONLY for images whose height >= 1024)

Description of Arguments:

     <infile> : Input (complex) Jumpstart DDB stripmap image filename
     <outfile>: Output Sunraster image filename
     -d [0-2] : Output datatype switch
     -t [0-7] : Optional single tile conversion switch

Files Necessary to Compile:

     * Include : none
     * Library : none
     * Source  : js_ddb2raw.c
                 read_switch.c
     * Make    : js_ddb2raw.mk (optional)


Compiling and Linking Code:

   You can compile js_ddb2raw  either from the command line or by using the 
   included makefile (note: .mk file).

   a) Command line Method:

        % gcc -c read_switch.c [enter]
        % gcc -o js_ddb2raw js_ddb2raw.c read_switch.o -lm [enter]
      
      NOTE: You can use other C compilers. Edit .mk file as necessary.

   b) Using the Makefile [js_ddb2raw.mk]:

      Perform the following steps:

        % make -f js_ddb2raw.mk        [Creates executable: js_ddb2raw ]
        % make -f js_ddb2raw.mk clean  [Deletes object code            ]

