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Re: bug in CONTOUR [message #4419 is a reply to message #4416]

Wed, 31 May 1995 00:00

afl
Messages: 51
Registered: December 1994

Member

In article <3qichn$90t@ucsbuxb.ucsb.edu>, paul@crseo.ucsb.edu (Paul Ricchiazzi)
writes:
|>
|>
|> I've discovered a bug in CONTOUR which occurs when you try to use
|> keywords C_LABEL and DOWNHILL at the same time. The bug has the
|> unfortunate side effect of corrupting your IDL session. So far it looks
|> like the bug is independent of platform -- it occurs on either our
|> DECSTATION or ALPHA workstations. Has anybody else ran across this
|> one? Does anyone know if its fixed in version 4.0?
|>
|>
|> Here is the session log: [IDL. Version 3.6 (ultrix mipsel)]
|>
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;
|>
|>
|> IDL> lev=indgen(14) & c_label=replicate(0,14)
|>
|> IDL> contour,dist(20),levels=lev,/down ; works fine
|>
|> IDL> contour,dist(20),levels=lev,c_label=c_label ; works fine
|>
|> IDL> contour,dist(20),levels=lev,/down,c_label=c_label ; bombs out
|> % Array has a corrupted descriptor: <No name>. ; IDL dumps
|> core
|> % Execution halted at $MAIN$ (CONTOUR). ; if you try to
|> |> ; do more
|> work

Or maybe IDL is confused about your use of the c_label keyword.
If all elements are zero, why not just omit the c_label keyword?
To test my theory, make c_label(3)=1 and re-run your code!

--

Andrew F. Loughe email: afl@cdc.noaa.gov
University of Colorado, CIRES voice: (303) 492-0707
Campus Box 449 fax: (303) 497-7013
Boulder, CO 80309-0449 USA

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[Message index]

		bug in CONTOUR By: paul on Wed, 31 May 1995 00:00
		Re: bug in CONTOUR By: afl on Wed, 31 May 1995 00:00
		Re: bug in contour By: R.Bauer on Tue, 19 August 2003 10:06
		Re: bug in contour By: Chris Lee on Thu, 21 August 2003 01:37
		Re: bug in contour By: R.Bauer on Tue, 19 August 2003 09:55
		Re: bug in contour By: Richard French on Tue, 19 August 2003 09:41
		Re: bug in contour By: R.Bauer on Tue, 19 August 2003 09:04
		Re: bug in contour By: R.Bauer on Tue, 19 August 2003 08:11
		Re: bug in contour By: R.G. Stockwell on Tue, 19 August 2003 07:49
		Re: bug in contour By: Richard French on Tue, 19 August 2003 06:23
		Re: bug in contour By: R.G. Stockwell on Thu, 21 August 2003 06:46
		Re: bug in contour By: R.Bauer on Thu, 21 August 2003 06:03

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