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Re: Exceed and IDL
- Subject: Re: Exceed and IDL
- From: Liam Gumley <Liam.Gumley(at)ssec.wisc.edu>
- Date: Wed, 07 Jul 1999 08:53:47 -0500
- Newsgroups: comp.lang.idl-pvwave
- Organization: Space Science and Engineering Center, University of Wisconsin-Madison
- References: <3781382A.2B4A4755@garnet.acns.fsuMMER.edu> <3781FFBA.B34A027A@met.rdg.ac.uk> <37820941.3557AB7F@ssec.wisc.edu> <378262CC.E96@llama.pilz.cack>
- Xref: news.doit.wisc.edu comp.lang.idl-pvwave:15579
> > Issuing the following command at the start of your IDL session should do
> > the trick:
> > DEVICE, DECOMPOSED=0, RETAIN=2
> FWIW, this has never worked for me, in that
> curves drawn in the work area are not retained
> with retain=2 (or anything else).
Strange. Did you issue the command
*before* creating any graphics windows, just after starting IDL? This
command *must* be executed prior to creating a graphics window,
otherwise it will have no effect (at least it has no effect on my SGI
box running IDL 5.2). I recommend using this command in a startup file.
For example, all our local IDL users have the following startup file
;- Set up 8 bit display and grab colors
if !version.os_family eq 'unix' then device, pseudo = 8
device, retain = 2, decomposed = 0
window, /free, /pixmap, colors = -5
plot, [ 0 ]
print, 'Color table size is ', !d.table_size
;- Set graphics and widget font sizes
device, set_character_size = [ 6, 9 ]
widget_control, default_font = '7x13'
;- ensure IDL 5.0 XMANAGER behavior is consistent with IDL 4.0
xmanager, catch = 0
Then use the system variable IDL_STARTUP to point to the full path and
name of the startup file e.g.
setenv IDL_STARTUP $HOME/idl_startup.pro (C shell)
export IDL_STARTUP=$HOME/idl_startup.pro (Korn shell)
This code will be executed every time you start a new IDL session, and
it should give you a consistent well-behaved 8 bit IDL display on all
Unix platforms (as long as your Unix desktop is set to 8 bit or 24 bit
mode: if you use a 16 bit or 32 bit desktop, all bets are off).
PS: Let me know if this does not work.
Liam E. Gumley
Space Science and Engineering Center, UW-Madison