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Re: Reading sequence of HDF files fails after some number of successes [message #82191 is a reply to message #82103]

Tue, 20 November 2012 18:47

BLesht
Messages: 89
Registered: March 2007

Member

On Tuesday, November 20, 2012 6:13:11 PM UTC-6, David Fanning wrote:
> David Fanning writes:
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>> Do you really program with all those line continuation characters!?
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>> Sheesh! That must be a bother! :-)
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> Just to clarify, I'm not trying to be my usual snarky self.
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> I just really admire a guy who can stay true to the ol'
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> DEC PDP 8 programming standards in this day and age! ;-)
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> Cheers,
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> David
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>
Well David, give me a break - I only go back to the PDP-11, though I do remember 'programming' by toggling switches on the front panel.

The IDL code is part of a larger script that gets fed to SeaDAS in batch mode. When passed to SeaDAS, IDL statements in loops need the continuation characters. Indeed, it is a bother.

Right - there was no HDF_CLOSE, but neither was there an HDF_OPEN. I've been confused about the relationship between HDF_OPEN - HDF_CLOSE pairs and HDF_SD_START - HDF_SD_ENDACCESS - HDF_SD_END triplet. If I add an HDF_CLOSE, referencing the index number that goes with the HDF_SD_START, I get the same error as before. If I bracket the code with HDF_OPEN - HDF_CLOSE, it fails with "HDF_CLOSE: Invalid file id, FID(xxxxxxx).

I guess I can play with different combinations, but I'd like to understand what is going on and what I read baffles me. It was a lot simpler to toggle switches - there were only eight after all.

B.

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

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[Message index]

		Reading sequence of HDF files fails after some number of successes By: BLesht on Tue, 20 November 2012 13:49
		Re: Reading sequence of HDF files fails after some number of successes By: BLesht on Wed, 21 November 2012 08:32
		Re: Reading sequence of HDF files fails after some number of successes By: abigailum on Mon, 28 January 2013 10:48
		Re: Reading sequence of HDF files fails after some number of successes By: Klemen on Wed, 21 November 2012 06:22
		Re: Reading sequence of HDF files fails after some number of successes By: lecacheux.alain on Wed, 21 November 2012 02:42
		Re: Reading sequence of HDF files fails after some number of successes By: BLesht on Tue, 20 November 2012 19:42
		Re: Reading sequence of HDF files fails after some number of successes By: David Fanning on Tue, 20 November 2012 18:55
		Re: Reading sequence of HDF files fails after some number of successes By: BLesht on Tue, 20 November 2012 18:47

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