[Nexus] : Writing and reading Nexus files in python

[BUTEAU Alain]

	We have similar request from our users to be able to access their NeXus files from  python, and IDL 

I'ma also looking for recipes to do this from these langages


-----Message d'origine-----
De : nexus-bounces at nexusformat.org [mailto:nexus-bounces at nexusformat.org] De la part de freddie.akeroyd at stfc.ac.uk
Envoyé : mercredi 14 avril 2010 20:35
À : brian at stack.nl; nexus at nexusformat.org
Objet : Re: [Nexus] Writing and reading Nexus files in Matlab


If the NeXus files are in hdf5 format then reading is relatively easy - matlab provides commands to load the data directly into a matlab array. For more details see  

http://www.mathworks.com/access/helpdesk/help/techdoc/ref/hdf5read.html

with regard to writing, nexus adds additional attributes to an HDF5 file to indicate the "nexus class" of an item. It would be possible to create a NeXus file using the matlab hdf5write command, but you would need to add these additional attributes by hand to make it readable by other nexus utilities. These problems would be solved by a native matlab API for NeXus - it is on the todo list, but we haven't quite got round to it yet. What sort of timescale were you looking at to start using NeXus files?

Regards,

Freddie 

-----Original Message-----
From: nexus-bounces at nexusformat.org [mailto:nexus-bounces at nexusformat.org] On Behalf Of Brian Pauw
Sent: 13 April 2010 13:22
To: nexus at nexusformat.org
Subject: [Nexus] Writing and reading Nexus files in Matlab

Dear all,

I would like to store my datafiles of upcoming 1D and 2D synchrotron SAXS experiments in the NeXus format for archival purposes. I am only familiar with Matlab, however I have not seen any API for Matlab NeXus writes. Can someone please indicate how I can go about this?

Yours sincerely,


Brian R. Pauw.
-- 
dr. ir. Brian R. Pauw
brian at stack.nl
http://www.lookingatnothing.com/




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