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reading gziped CDFs [message #34120]

Wed, 26 February 2003 20:50

erikb
Messages: 1
Registered: February 2003

Junior Member

Hi all,

I've got a question that google can't answer, so I'm posing it to you:

I have gziped CDF files that I would like to open without having to
manually unzip them for space considerations. I know that IDL can
handle opening gziped files with the /compress keyword to the open
routines, but that doesn't help with a CDF. I see that my ver. of IDL
(5.4) has a CDF_compression command, but it seems that this is an
internal compression method within the CDF structure. So... is there a
way to get IDL to understand that I have a gzipped CDF? I'm thinking I
need to kludge CDF_open somehow. I would only need to read these files,
I would never write/append to them.

Thanks for any ideas
-Erik

p.s. I suppose an alternative is to write wrapper open/close functions
that would SPAWN a gunzip to a temp file and then delete it on close.
Anyone know a fast way of making unique temp filenames? (I'm on a linux
system, btw.)

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[Message index]

		reading gziped CDFs By: erikb on Wed, 26 February 2003 20:50
		Re: reading gziped CDFs By: K. Bowman on Thu, 27 February 2003 10:43
		Re: reading gziped CDFs By: Mark Hadfield on Thu, 27 February 2003 10:40
		Re: reading gziped CDFs By: Rick Towler on Thu, 27 February 2003 09:26
		Re: reading gziped CDFs By: Kenneth P. Bowman on Thu, 27 February 2003 04:22

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