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Re: writing fixed-length string arrays to netcdf-4 [message #86390 is a reply to message #86389]

Mon, 04 November 2013 10:48

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

David Fanning writes:

> Well, I don't know. My NCDF_File object seems to do it just fine.

Here is essentially the same program, but using string arrays.

;----------------------------------------------------------- ----------
; Create a ncdf file with variable length and fixed length strings.
fileObj = Obj_New('ncdf_file', 'tester.nc', /Clobber, /Create)
fileObj -> WriteDim, 'xdim', [10], OBJECT=xdimObj
fileObj -> WriteDim, 'ydim', [3], OBJECT=ydimObj
dimNames = [xdimObj->GetName(), ydimObj->GetName()]
v1 = ['cat','coyote','elephant']
v2 = String(v1, Format='(A10)')
fileObj -> WriteVarDef, 'v11', dimNames, DATATYPE='STRING', OBJECT=v1Obj
fileObj -> WriteVarDef, 'v22', dimNames, DATATYPE='STRING', OBJECT=v2Obj

fileObj -> WriteVarData, v1Obj, v1
fileObj -> WriteVarData, v2Obj, v2

fileObj -> Sync
Obj_Destroy, fileObj

; Read the data out of the file.
fObj = Obj_New('ncdf_file', 'tester.nc')
v_1 = fObj -> GetVarData('v11')
v_2 = fObj -> GetVarData('v22')
Help, v_1, v_2
Obj_Destroy, fObj
END
;----------------------------------------------------------- ----------

Here is what I get when I run it.

IDL> .go
V_1 STRING = Array[3]
V_2 STRING = Array[3]
IDL> print, v_1
cat coyote elephant
IDL> print, v_2
cat coyote elephant

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.")

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[Message index]

		writing fixed-length string arrays to netcdf-4 By: Chris O'Dell on Tue, 29 October 2013 20:11
		Re: writing fixed-length string arrays to netcdf-4 By: David Fanning on Tue, 29 October 2013 21:13
		Re: writing fixed-length string arrays to netcdf-4 By: Chris O'Dell on Wed, 30 October 2013 08:49
		Re: writing fixed-length string arrays to netcdf-4 By: David Fanning on Wed, 30 October 2013 09:07
		Re: writing fixed-length string arrays to netcdf-4 By: David Fanning on Mon, 04 November 2013 10:21
		Re: writing fixed-length string arrays to netcdf-4 By: David Fanning on Mon, 04 November 2013 10:48
		Re: writing fixed-length string arrays to netcdf-4 By: David Fanning on Mon, 04 November 2013 11:15
		Re: writing fixed-length string arrays to netcdf-4 By: Chris O'Dell on Tue, 05 November 2013 10:34
		Re: writing fixed-length string arrays to netcdf-4 By: David Fanning on Tue, 05 November 2013 10:50
		Re: writing fixed-length string arrays to netcdf-4 By: Chris O'Dell on Mon, 11 November 2013 16:17

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