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Re: NetCDF and empty variables [message #66138 is a reply to message #66134]

Fri, 17 April 2009 08:55

liamgumley
Messages: 74
Registered: June 2005

Member

On Apr 17, 8:18 am, renaud.dussur...@gmail.com wrote:
> IDL>ncid = NCDF_OPEN('myFile.nc')
> IDL>varId = NCDF_VARID(ncid,'HISTORY_INSTITUTION')
> IDL>out=NCDF_VARINQ(ncid, VarId)
> IDL>help, out, /str
> ** Structure <a9c098>, 5 tags, length=56, data length=52, refs=1:
> NAME STRING 'HISTORY_INSTITUTION'
> DATATYPE STRING 'CHAR'
> NDIMS LONG 3
> NATTS LONG 3
> DIM LONG Array[3]
>
> IDL>print, out.dim
> 6 8 12
>
> IDL>NCDF_VARGET, ncid, varId, data, COUNT=cnt
> % Array dimensions must be greater than 0.

Where is the array CNT defined?

Have you tried something like this?

PRO TEST
ncid = ncdf_open('myfile.nc')
varid = ncdf_varid(ncid, 'HISTORY_INSTITUTION')
if (varid eq -1) then message, 'Variable does not exist'
ncdf_varget, ncid, varid, value
help, value
END

If the code gets past the check for (varid eq -1) and it still
crashes, then something very odd is going on, and I think you have a
reason to contact ITTVIS technical support.

Liam.
Practical IDL Programming
http://www.gumley.com/

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[Message index]

		Re: NetCDF and empty variables By: renaud.dussurget on Mon, 20 April 2009 05:18
		Re: NetCDF and empty variables By: renaud.dussurget on Mon, 20 April 2009 05:11
		Re: NetCDF and empty variables By: R.Bauer on Mon, 20 April 2009 02:25
		Re: NetCDF and empty variables By: Mark[1] on Sun, 19 April 2009 16:08
		Re: NetCDF and empty variables By: renaud.dussurget on Fri, 17 April 2009 12:34
		Re: NetCDF and empty variables By: liamgumley on Fri, 17 April 2009 08:55
		Re: NetCDF and empty variables By: David Fanning on Fri, 17 April 2009 06:46
		Re: NetCDF and empty variables By: Mark[1] on Mon, 20 April 2009 17:11

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