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Re: NetCDF and empty variables [message #66192 is a reply to message #66142]

Wed, 22 April 2009 08:29

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

David Fanning writes:

> OK, I understand that I can't read any variable that has
> this unlimited dimension set to zero. So, how do I determine
> ahead of time (that is, before I read the variable) whether
> that variable is using this dimension?

Never mind, I figured out that NCDF_VARINQ can return me
the IDs of all of the dimensions of the variable. If
I have a dimension with a length of zero, I save its ID
and later compare it to the dimension IDs returned
from the function listed above. If there is a match,
I don't read the variable and do something else.

The nCDF_Browser has been updated appropriately:

http://www.dfanning.com/ncdf_browser.zip

Cheers,

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

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[Message index]

		NetCDF and empty variables By: renaud.dussurget on Fri, 17 April 2009 06:18
		Re: NetCDF and empty variables By: Mark[1] on Wed, 22 April 2009 17:29
		Re: NetCDF and empty variables By: David Fanning on Wed, 22 April 2009 08:29
		Re: NetCDF and empty variables By: David Fanning on Wed, 22 April 2009 07:30
		Re: NetCDF and empty variables By: David Fanning on Tue, 21 April 2009 21:03
		Re: NetCDF and empty variables By: Mark[1] on Tue, 21 April 2009 20:48
		Re: NetCDF and empty variables By: David Fanning on Tue, 21 April 2009 11:38
		Re: NetCDF and empty variables By: renaud.dussurget on Tue, 21 April 2009 08:49

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