[mcstas-users] NeXus format problem.

[Peter Kjær Willendrup]

Dear Federico,

On 20 Feb 2017, at 17:59 , Federico M. Bertalot <federicobertalot at cnea.gov.ar<mailto:federicobertalot at cnea.gov.ar>> wrote:

I am using NeXus format for my output files in mcstas, and it works fine. But now i have added some divergence monitors to my instrument and found this warning:

Warning: could not open DataSet data 'Divergence monitor' (NeXus)
Warning: could not open DataSet errors 'Divergence monitor' (NeXus)
Warning: could not open DataSet ncount 'Divergence monitor' (NeXus)

In fact, the resulting file has only the fields "acquisition_mode" and "distance" fields for the divergence monitor.

Do you know why? Is there some way to solve it?

My guess is that you are using Divergence_monitor.comp with filename=“Divergence monitor” - i.e. including a space. My guess is that all should work properly if you use a filename without spaces.

BUT:
To give you better advice I will need an archive (zip/tar.gz or equivalent) including:

* Your instrment file
* The generated c-code
* The output dataset which including the failure

It would also help to know which version of McStas you are running on which operating system - and what version of NeXus and HDF you are using.

- Then I have a chance of reproducing the issue. :-)


Best,

Peter Willendrup



Peter Kjær Willendrup
Senior Research Engineer, Special Advisor

DTU Physics

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Technical University of Denmark



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Department of Physics
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Direct +45 2125 4612

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pkwi at fysik.dtu.dk<mailto:pkwi at fysik.dtu.dk>

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