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<== Date ==> <== Thread ==>
Subject: Re: NTNDArray with attributes using QSRV group Pas
From: "Kasemir, Kay via Tech-talk" <tech-talk at aps.anl.gov>
To: "Veseli, Sinisa" <sveseli at anl.gov>, "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>, Joao Paulo Martins <JoaoPaulo.Martins at ess.eu>
Date: Wed, 2 Nov 2022 15:49:26 +0000
> Although this does not help with your problem, perhaps it is worth looking into as possible alternative approach for serving images:

>>> import time
>>> import pvaccess as pva
>>> attr = pva.NtAttribute('x', pva.PvInt(3))
>>> attr['timeStamp'] = pva.PvTimeStamp(time.time())
>>> nda = pva.NtNdArray()
...



Combine this with the PyDevice, https://github.com/klemenv/PyDevice (for more see also recent EPICS meeting), you can have an IOC where some record calls python code, and in there you then assemble & publish the PVA data.

The result could either be a very elegant solution that offers the best of IOC record processing and python for assembling the complex data, or a Franken-IOC. It's certainly worth exploring as an alternative to growing the "info(group..." syntax.



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Re: NTNDArray with attributes using QSRV group Pas Veseli, Sinisa via Tech-talk
References:
NTNDArray with attributes using QSRV group Pas Joao Paulo Martins via Tech-talk
Re: NTNDArray with attributes using QSRV group Pas Kasemir, Kay via Tech-talk
Re: NTNDArray with attributes using QSRV group Pas Veseli, Sinisa via Tech-talk
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