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<== Date ==> <== Thread ==>

Subject: Re: Including display information in NTTables
From: Michael Davidsaver via Tech-talk <tech-talk at aps.anl.gov>
To: Érico Nogueira Rolim <erico.rolim at lnls.br>
Cc: "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
Date: Mon, 18 Nov 2024 12:01:00 -0800
On 11/18/24 08:43, Érico Nogueira Rolim via Tech-talk wrote:
Hi again :)


I decided to split this question into a separate email, since it's
unrelated to my previous question.

With scalar and waveform PVs accessed over CA and PVA, display
information (mainly PREC for CA, and PVA has precision and form) is
transferred over the wire, allowing clients to simply use the
information provided by an IOC to best present the received data. We use
PREC extensively in our own GUIs.

However, the NTTable spec [1], group schema [2] and pvinfo output don't
include any display information. Is there some way to specify it?

Or is it a missing feature?

Yup.


[1]
https://urldefense.us/v3/__https://docs.epics-controls.org/en/latest/pv-access/Normative-Types-Specification.html*nttable__;Iw!!G_uCfscf7eWS!c7DJNaU6TTajUJRrV_hQnVWQ_GkL-GybMSOGqgtDPoADRVrzUZSPuc6TdN5Y_Zc6zGjEtGVh0QURUDTti0yV4v3hg7w$

[2] https://urldefense.us/v3/__https://epics-base.github.io/pvxs/qsrv2-schema-0.json__;!!G_uCfscf7eWS!c7DJNaU6TTajUJRrV_hQnVWQ_GkL-GybMSOGqgtDPoADRVrzUZSPuc6TdN5Y_Zc6zGjEtGVh0QURUDTti0yVMXUiLfU$


Cheers,

Érico


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References:
Including display information in NTTables Érico Nogueira Rolim via Tech-talk

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