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Re: Contour and 'Z-buffer' [message #8141]

Thu, 06 February 1997 00:00

Liam Gumley
Messages: 473
Registered: November 1994

Senior Member

Nestor Zarraoa wrote [in part]:
> We want to use IDL 4.0.1 (sunos) to create a contour plot
> in GIF format. The calling process must run overnight.
> We tried moreover to use X-windows with /pixmap, but again it would
> not work if the x-windows display is not open, even if we do not
> try at all to create a physical window on the screen.

Nestor,

You should be able to use X pixmaps in an IDL background job. We run
'cron' jobs that do this routinely.

In the script that calls idl, you must set the DISPLAY environment
variable *before* idl is started, e.g. (csh assumed)

setenv DISPLAY :0.0
setenv IDL_DIR /usr/local/rsi/idl_4
source $IDL_DIR/bin/idl_setup
idl startup.pro

We use a very minimal IDL program for 'startup.pro', e.g.

.rnew process.pro
exit

process.pro would contain the WINDOW command, e.g.

window, /free, /pixmap

and then your IDL processing commands. Give it a whirl and let me know
what happens.

Cheers,
Liam.

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Re: Contour and 'Z-buffer'

By: Liam Gumley on Thu, 06 February 1997 00:00

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