[NeXus-committee] NXgroup: undocumented or inofficial?

Herbert J. Bernstein yayahjb at gmail.com
Wed Jul 9 00:21:33 BST 2014


Let's start from scratch on what is needed now.  I am putting together
very large complex NeXus files for synchrotron diffraction images and
FEL images.  These files involve large numbers of filed names.  They
would be much easier to organize and easier for users to read through
if there were a transparent NXgroup base class that allowed validation
as if the contents were
one level up, but which, simply by being a new tree node, avoided any
potential name conflicts
-- essentially filling the role in NeXus that parentheses serve in
C-expressions.

On Tue, Jul 8, 2014 at 5:52 PM, Pete Jemian <jemian at anl.gov> wrote:
> Joachim:
>
>
> On 7/8/2014 4:29 PM, j.wuttke wrote:
>>
>> Perhaps the name change and it's non-implementation at SNS are a fortunate
>> coincidence we could use to codify their current use of "NXgroup"?
>
>
> NXcollection was finalized at a plenary meeting of the NIAC in 2010.
> (http://wiki.nexusformat.org/images/2/24/Minutes_of_NeXus_Committee_2010.pdf)
> The proposal for "NXmeasurement" resulted in "NXcollection".  I cannot find
> the mention of "NXgroup" in the minutes available online.  A Google search
> for "NeXus NXgroup base class" is unproductive for this topic. (It does
> identify that the NeXpy tree API uses a Python class with the NXgroup name.)
>
> Minutes for the various meetings of the NIAC, where such decisions have been
> made are available online:
> http://wiki.nexusformat.org/NIAC#Meetings
>
> Pete
>
>
> --
> ----------------------------------------------------------
> Pete R. Jemian, Ph.D.                <jemian at anl.gov>
> Beam line Controls and Data Acquisition, Group Leader
> Advanced Photon Source,   Argonne National Laboratory
> Argonne, IL  60439                   630 - 252 - 3189
> -----------------------------------------------------------
>    Education is the one thing for which people
>       are willing to pay yet not receive.
> -----------------------------------------------------------
>
>
>
> _______________________________________________
> NeXus-committee mailing list
> NeXus-committee at nexusformat.org
> http://lists.nexusformat.org/mailman/listinfo/nexus-committee
>


More information about the NeXus-committee mailing list