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Re: "Variable undefined" error in LOADCT? [message #61443 is a reply to message #61439]

Wed, 16 July 2008 19:58

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Ed Hyer writes:

> This one is interesting. Basically, I'm running a batch graphics
> routine making a bunch of plots, and periodically LOADCT gets called,
> in this form:
>
> LOADCT,39,/silent
>
> Now, lately this routine will run for a while (several plots) and then
> break, with the error:
>
> % Variable is undefined: FILENAME.
> % Error occurred at: LOADCT 180
>
> Here is the relevant code from loadct.pro:
>
> if (n_elements(file) GT 0) then filename = file $
> else filename = filepath('colors1.tbl', subdir=['resource', 'colors'])
> openr,lun, filename, /block
>
> Has anyone ever seen this error?

Wow. Are you sure you have the right LOADCT call?
It is not being called in some other program, is it?
Sometimes a variable like "file" or "filename" will
change unexpectedly in a program. Especially in a
long batch program.

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		Re: "Variable undefined" error in LOADCT? By: Vince Hradil on Thu, 17 July 2008 06:26
		Re: "Variable undefined" error in LOADCT? By: David Fanning on Wed, 16 July 2008 19:58
		Re: "Variable undefined" error in LOADCT? By: MarioIncandenza on Thu, 17 July 2008 17:47

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