Experimental Physics and
Industrial Control System

Michael Davidsaver via Tech-talk <tech-talk at aps.anl.gov> · Tue, 31 Mar 2020 13:01:39 -0700

On 3/31/20 12:11 PM, Mark Rivers wrote:
> Hi Michael,
> 
> 
> Here is a little feedback, actually something to add to a wish list.
> 
> 
> pvget and pvmonitor really need a way to limit the output, similar to the -# <count> flag in caget and camonitor.  Since pvget could be returning multiple array fields the simplest implementation would be to use this limit for the number of values to print on each of them.
> 
> I often want to do pvget or pvmonitor on an NTNDArray structure.  But I don't want to see all 2+ million values of the image, I just want to see a few values and the rest of the structure.

As it happens, this feature will be available (actually already is)
with the CLI tools of my forthcoming PVXS module (reimplementation
of PVA).

While I haven't mentioned PVXS on tech-talk before, those subscribed
to the core-talk list have seen my pleas for testing and feedback as
the initial development cycle for this module is coming to an end.

https://mdavidsaver.github.io/pvxs/

> 
> Thanks,
> 
> Mark
> 
> 
> 
> ________________________________
> From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Michael Davidsaver via Tech-talk <tech-talk at aps.anl.gov>
> Sent: Tuesday, March 31, 2020 1:31 PM
> To: Rolf Keitel; tech-talk at aps.anl.gov
> Subject: Re: EPICS7 roller-coaster
> 
> I'll address this piece first, and leave the rest until my desire to
> counter-rant has faded.  I'm not unhappy with you (Rolf), but rather
> with the "community", and  the difficultly of getting the (to me) all
> important user feedback during the development cycle of a module,
> as opposed to 3 years later after multiple releases.
> 
> On 3/31/20 10:44 AM, Rolf Keitel via Tech-talk wrote:
>> pvput test:rect '{"height":{"value":33}}'
>>
>>
>>
>> And you know what happened after I had all the ' } and "  sorted out:
>>
>> JSON syntax not supported by this build
> 
> This issue has been fixed, but not released.
> 
>> Now I  want to type *#@%$!!!*. Can anybody help me to set the height field in test:rect with pvput?
> 
> pvput test:rect height.value=33
> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System