| Huge HDF files [message #25783] |
Tue, 17 July 2001 13:21  |
Sean Raffuse
Messages: 46
Registered: July 2001
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Member |
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Is there a limit to the size of file you can bring into IDL?
I am interested in some new satellite data that comes in at 270mb per HDF
file. I got an error when I tried to open it using ENVI, so I was wondering
if it was just too big for IDL to handle. Somehow, I doubt it.
The related question: Is there a similarly helpful newgroup for ENVI?
Thanks,
Sean Raffuse
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| Re: Huge HDF files [message #25869 is a reply to message #25783] |
Wed, 18 July 2001 06:56  |
Craig Markwardt
Messages: 1869
Registered: November 1996
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Senior Member |
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"Sean Raffuse" <sean@me.wustl.edu> writes:
> Is there a limit to the size of file you can bring into IDL?
>
> I am interested in some new satellite data that comes in at 270mb per HDF
> file. I got an error when I tried to open it using ENVI, so I was wondering
> if it was just too big for IDL to handle. Somehow, I doubt it.
>
> The related question: Is there a similarly helpful newgroup for ENVI?
It is possible to handle data larger than 270 MB. I don't know about
windows, but under Unix, you often have to deal with process memory
limits. If you have Unix, check out the "limit" or "ulimit" command,
and use it to set your datasize to a large number, or "unlimited",
before running IDL.
Craig
--
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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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| Re: Huge HDF files [message #25918 is a reply to message #25783] |
Mon, 23 July 2001 22:34 |
Peter Scarth
Messages: 9
Registered: February 2000
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Junior Member |
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Hi Sean,
ENVI should open this size of file - I am currently working on MASTER data
that is delivered as 800MB+ HDF files and I can open it fine in both ENVI
and IDL. Make sure your "Memory Usage" settings in ENVI are set up
correctly, and that you have the latest service packs installed.
Cheers,
Peter
"Sean Raffuse" <sean@me.wustl.edu> wrote in message
news:9j263i$iqa$1@newsreader.wustl.edu...
> Is there a limit to the size of file you can bring into IDL?
>
> I am interested in some new satellite data that comes in at 270mb per HDF
> file. I got an error when I tried to open it using ENVI, so I was
wondering
> if it was just too big for IDL to handle. Somehow, I doubt it.
>
> The related question: Is there a similarly helpful newgroup for ENVI?
>
> Thanks,
>
> Sean Raffuse
>
>
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