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Re: archived data [message #54338 is a reply to message #54337]

Tue, 05 June 2007 05:26

cmancone
Messages: 30
Registered: May 2007

Member

On Jun 3, 11:54 am, Wox <nom...@hotmail.com> wrote:
> Hi All,
>
> I face the following situation: I'd like to do some online data
> processing (i.e. during measurements) using IDL. However the data is
> directly zipped by the acquisition system. Is it possible to read and
> search (like file_search) in a zip archive without spawning unzip and
> extract everything? Windows explorer does it, so it must be
> possible...
>
> I remember a similar question beeing posted here, but I couldn't find
> it.
>
> Thanks

I'm afraid I don't have any suggestions for you. I was just going to
add that windows almost certainly does it by quickly extracting the
files into memory as it reads the zip archive. It doesn't actually
extract the files for you, true, but it would have to unzip them in
order to display them (at least, I don't see how else it could do
it). Which of course is bad news for you - that would mean that the
only way you could accomplish what you want to accomplish is by having
IDL do the unzipping. Unless someone else has built zip/unzip
functionality into IDL, that means you'd have to do it yourself.

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[Message index]

		Re: archived data By: Wox on Wed, 06 June 2007 00:42
		Re: archived data By: Vince Hradil on Tue, 05 June 2007 10:15
		Re: archived data By: Vince Hradil on Tue, 05 June 2007 10:12
		Re: archived data By: jkj on Tue, 05 June 2007 08:15
		Re: archived data By: Wox on Tue, 05 June 2007 07:13
		Re: archived data By: Brian Larsen on Tue, 05 June 2007 06:15
		Re: archived data By: cmancone on Tue, 05 June 2007 05:26

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