[Nexus] NXDL technical meetings: poll for meeting on NX_class

Wout De Nolf wout.de_nolf at esrf.fr
Fri Nov 6 14:29:07 GMT 2026


Hi folks,

New poll for an NXDL technical meeting:

Topic: NX_class which is not really an attribute like the others 
(https://github.com/nexusformat/definitions/issues/1687)

Poll: #NXDL > Declare attributes of all fields and groups @ 💬 [1]

Cheers,
Wout De Nolf

On 2026-10-25 12:25, Wout De Nolf wrote:

> Hi all,
> 
> As the new NXDL Technical Manager, I would like to start technical 
> meetings
> on NXDL, separate from the general NIAC meetings. They are open to 
> anyone
> and might be especially interesting for people who:
> 
> - develops tools that read the *.nxdl.xml files or nxdl.xsd directly, 
> or
> - are invested in how NXDL evolves from a technical pov.
> 
> The first topic is PR #1669:
> https://github.com/nexusformat/definitions/pull/1669
> 
> It does two things:
> - it declares, in NXDL itself, the attributes that every field and 
> group
> may have (@NX_class, @target, @units, ...);
> - it defines NeXus links by their content instead of as HDF5 hard 
> links.
> 
> If you would like to join, please fill in the Doodle:
> https://doodle.com/meeting/organize/id/e5M9ywKe
> 
> We will organise the rest on Zulip, so please join and reply there:
> https://nexusformat.zulipchat.com (channel #NXDL)
> 
> Cheers,
> Wout De Nolf


Links:
------
[1] 
https://nexusformat.zulipchat.com/#narrow/channel/638997-NXDL/topic/Declare.20attributes.20of.20all.20fields.20and.20groups/near/638149013
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