STScI Logo

sun2vax stsdas.toolbox.convfile



sun2vax -- Translate GEIS image data files from SUN format to VAX format


sun2vax input output


The `sun2vax' task will convert image data files from the binary format used on Sun systems to that used on a VAX. Input files should be in GEIS (`.hhh') format. (Type "help geis" for more information about GEIS format images.) If the input files reside on a different machine than the output files, they may transferred transparently with this task via IRAF networking. If access via IRAF networking is unavailable, the files can first be transferred from the remote host using FTP and then converted using `sun2vax' on the local host. This task can be used with either a Sun or a VAX as the local host; see the EXAMPLES section for details. For more information about IRAF networking, type "help networking".


input [file name template]
The input image header names. This is a list of images describing which files are going to be transferred/translated; you can use a template or the "@" notation for a list file.
output [file name or directory]
The output header filename template, list file (preceded by the "@" character), or directory name. The number of output files must equal the number of input files, unless the output is a directory name. NOTE: you cannot translate the files in-place-- i.e., the output filename must be different than the input filename, or the output must be to a different directory.
(verbose = yes) [boolean]
Print a status line as each image is transferred/converted?


In the following examples the pathname for the remote host and directory are referred to with IRAF environment variables. This is usually good practise (it helps to avoid typo's), but it is often necessary for IRAF networking because wildcards in file names are NOT expanded if the path begins with a node name. Simply append the "$" character to the environment variable and use it in place of the "node!pathname" syntax.

1. Tranfer all GEIS images beginning with the letter "v" from the remote SUN machine "sol" to the current directory on a local VAX. Notice the notation for the local directory (.).

   	cl> set dsol = sol!/sol/u1/user/vdir/
   	cl> sun2vax dsol$v*.hhh .

2. Tranfer and translate all images beginning with "v" from a local Sun host to the remote VAX host "AIRY" in the directory "DISK$DATA:[USER1.DATA]" (Note that the "\" character is essential to escape the CL metacharacters.)

   	cl> set dvax = airy!disk\$data:[]
   	cl> sun2vax v*.hhh dvax$

3. A list file "inlist" has been created with the names (including pathnames) of the input header files, and a similar list for the output files is in "outlist". The number of files (lines) in both list files should be the same.

   	cl> sun2vax @inlist @outlist

4. This example is more complicated. If IRAF networking is unavailable for your machine, you may still transfer your files from a Sun to a VAX with FTP, and then run `sun2vax' to convert the binary format. You will need to specify "binary" mode in FTP before transferring the ".hhd" files; ASCII mode must be used for the ".hhh" files. Now run `sun2vax' on the images "v1" and "n23" and place the output in the subdirectory "ctemp" on the local VMS machine.

	cl> sun2vax v1.hhh,n23.imh ctemp/

If instead you want the output images in the same directory, try:

   	cl> sun2vax v1.hhh v1new.hhh
   	cl> sun2vax n23.imh n23new.imh


This task was written by Nelson Zarate, ST ScI.


vax2sun, tconvert, set

For more information about IRAF networking, type "help networking". For more information about GEIS format files, type "help geis".

Package Help · Search Form · STSDAS