% @(#)assigndisp.hlq	17.1.1.1 (ESO-IPG) 01/25/02 17:43:16 
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%.COPYRIGHT  (c)  1990 European Southern Observatory
%.IDENT      assigndisp.hlq
%.AUTHOR     KB, IPG/ESO
%.KEYWORDS   MIDAS, help files, ASSIGN/DISPLAY
%.PURPOSE    On-line help file for the command: ASSIGN/DISPLAY
%.VERSION    1.0  12-OCT-1983 : Creation, KB
%----------------------------------------------------------------
\se
SECTION./DISP
\es\co
ASSIGN/DISPLAY						04-JAN-1991  KB
\oc\su
ASSIGN/DISPLAY [dev] [file_name]
	define output device for display
\us\pu
Purpose: 
          Define output device for displaying images.
\up\sy
Syntax: 
          ASSIGN/DISPLAY [dev] [file_name]
\ys\pa
          dev = display device (may be shortened to the first 3 characters):
\\
              DISPLAY or D,display_id in X11 environment, display_id in [0,9];
\\
              VERSATEC (only supported under VMS);
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              LASER for grayscale Postscript laser;
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              COLOUR for colour Postscript laser;
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              SLIDE for colour film recorder;
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              FILE, if output should go to file indicated in next parameter;
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              defaulted to DISPLAY
\ap\pa
          file_name = name of file where to store the image in, only if 
              parameter 'dev' is set to FILE
\ap\sa
See also:
          ASSIGN/PRINT, ASSIGN/DEFAULT, LOAD/IMAGE, COPY/DISPLAY
\as\no
Note:   
          The display assignment will be used in subsequent LOAD/IMAGE and
          LOAD/ITT commands.
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          Instead of the generic device names you can also use the system 
          name of a hardcopy device at your site directly. 
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          For example, at ESO "ps2usr1" would be possible.
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          The actual devices accessed via the generic names LASER, COLOUR
          and SLIDE depend upon how MIDAS was installed at your site.
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          Use the command "HELP [Printers]" to get a detailed list of all
          actually available hardcopy devices at your site.
\on\exs
Examples:
\ex
          ASSIGN/DISP colour
            Assign the "default" colour laser printer as image output device.
\xe\ex
          ASSIGN/DISP D,2
            Assign display window 2 as image output device (assuming a X11
            workstation as image display).
\xe\ex
          ASSIGN/DISP FILE display
            Subsequent LOAD/IMAGE command will fill the file `display.bdf'.
\xe\ex
          ASSIGN/DISP ps2usr1
            Assuming that you have a grayscale Postscript printer at your site
            with the name "ps2usr1", this defines ps2usr1 as output device.
\xe\sxe