comp.lang.idl-pvwave archive: archive » Reading part of a netcdf file?

Home » Public Forums » archive » Reading part of a netcdf file?

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: Reading part of a netcdf file? [message #86018 is a reply to message #86017]

Tue, 24 September 2013 09:11

rjp23
Messages: 97
Registered: June 2010

Member

On Tuesday, September 24, 2013 5:06:53 PM UTC+1, David Fanning wrote:
> rjp23@le.ac.uk writes:
>
>
>
>> I have a very large (22GB) netcdf file and I was hoping there was some way to read part of it at a time into IDL but I can't figure out how.
>
>>
>
>> For example, I have this variable:
>
>>
>
>> Var FLOAT = Array[144, 72, 17, 32161]
>
>>
>
>> The 4th dimension is time, i.e. the are 32161 timesteps.
>
>>
>
>> Is it possible to read only the first X in one go, then read the next X, etc meaning that less is stored in memory at once?
>
>
>
> You might find the tools I have developed to browse, read, and write
>
> netCDF files helpful:
>
>
>
> http://www.idlcoyote.com/fileio_tips/ncdf_browser.html
>
>
>
> Cheers,
>
>
>
> David
>
> --
>
> David Fanning, Ph.D.
>
> Fanning Software Consulting, Inc.
>
> Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
>
> Sepore ma de ni thue. ("Perhaps thou speakest truth.")

Hi David,

Do you mean in reference to copying part of the file into another file or for just reading part of the file?

It looks like both might be possible once I get my head around your code...?

Cheers

Rob

Report message to a moderator

[Message index]

		Reading part of a netcdf file? By: rjp23 on Tue, 24 September 2013 08:26
		Re: Reading part of a netcdf file? By: David Fanning on Tue, 24 September 2013 09:06
		Re: Reading part of a netcdf file? By: rjp23 on Tue, 24 September 2013 09:11
		Re: Reading part of a netcdf file? By: David Fanning on Tue, 24 September 2013 09:31
		Re: Reading part of a netcdf file? By: David Fanning on Tue, 24 September 2013 09:40
		Re: Reading part of a netcdf file? By: Paul Van Delst[1] on Tue, 24 September 2013 09:46
		Re: Reading part of a netcdf file? By: Michael Galloy on Tue, 24 September 2013 13:01

Previous Topic:	Reading large files with restore
Next Topic:	temporary() problem

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Fri Oct 10 14:52:17 PDT 2025

Total time taken to generate the page: 1.44022 seconds