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Re: opening .h5 data files [message #74239 is a reply to message #74238]

Wed, 05 January 2011 08:23

Michael Galloy
Messages: 1114
Registered: April 2006

Senior Member

On 1/5/11 7:55 am, David Fanning wrote:
> Liam Gumley writes:
>
>> Neil, try this:
>>
>> result = h5_parse(file, /read_data)
>> help, result, /structure
>
> Whoa! That's pretty impressive. :-)
>
> So, now I have the data:
>
> IDL> help, result.hdfeos.grids.set1.data_fields.u._data
> <Expression> FLOAT = Array[360, 180]
>
> How do I read just that variable out of the file
> without reading everything?

I use MG_H5_GETDATA to do it:

IDL> u = mg_h5_getdata(file, '/result/hdfeos/grids/set1/data_fields/u')

It also can grab a section of a variable if you don't want to read the
entire variable:

IDL> f = filepath('hdf5_test.h5', subdir=['examples', 'data'])
IDL> res3 = mg_h5_getdata(f, '/arrays/3D int array[3, 5:*:2, 0:49:3]')

Get mg_h5_getdata.pro at:

http://michaelgalloy.com/wp-content/uploads/2011/01/mg_h5_ge tdata.pro

Mike
--
www.michaelgalloy.com
Research Mathematician
Tech-X Corporation

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[Message index]

		Re: opening .h5 data files By: Michael Galloy on Wed, 05 January 2011 09:10
		Re: opening .h5 data files By: David Fanning on Wed, 05 January 2011 08:55
		Re: opening .h5 data files By: David Fanning on Wed, 05 January 2011 08:42
		Re: opening .h5 data files By: Michael Galloy on Wed, 05 January 2011 08:23
		Re: opening .h5 data files By: David Fanning on Wed, 05 January 2011 06:55
		Re: opening .h5 data files By: liamgumley on Wed, 05 January 2011 06:45
		Re: opening .h5 data files By: Mark Piper on Thu, 06 January 2011 08:39

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