[NeXus-committee] Instrument Definitions

[Campbell, SI (Stuart)]

Hi Andy/Pete,

I agree with the name change to NXpositioner.  

I think it would be useful to have limits, should we have the soft
and/or hard limits ? And how should they be represented ? E.g.

soft_limit_min
soft_limit_max

Or 

soft_limits[2]

Any ideas ?

I think that the units are ok as an attribute of the value.

Cheers
Stu


-----Original Message-----
From: nexus-committee-bounces at anl.gov
[mailto:nexus-committee-bounces at anl.gov] On Behalf Of Andy Gotz
Sent: 07 April 2006 06:23
To: jemian at anl.gov
Cc: nexus-committee at anl.gov
Subject: Re: [NeXus-committee] Instrument Definitions

Hi Pete,

I agree with the renaming. It is more generic that way.

I would be inclined to specify the NXpositioner a bit more like adding
limits, units. What do you and Stuart (the current proposer of NXmotor)
and the rest think ?

Currently the spec converter we have written converts a spec motor to a
single NXdata value but I don't find this very good because we have lost
the information that it is a positioner.

Andy

Pete R. Jemian wrote:

>
> Andy:
>
> The present NXmotor is pretty basic ... a generic positioner.
> (http://www.nexus.anl.gov/mediawiki/index.php?title=NXmotor)
> I believe we agreed to define it this way with the plan to revise it 
> in the future.  Nick suggests that we consider NXpositioner since 
> non-motor items (such as piezoelectric transducer, temperature, magnet

> current, or magnet field
> strength) are often used as the scanned or independent variable.
>
> I propose renaming NXmotor to NXpositioner, as in:
> http://www.nexus.anl.gov/mediawiki/index.php?title=NXpositioner
> and then we add this for ratification.
>
> Pete
>
> Andy Gotz wrote:
>
>> Hi Pete,
>>
>> can we add NxMotor to thes to be ratified? Where should it be added? 
>> It is not an instrument.
>>
>> Andy
>>
>> Peterson, Peter F. wrote:
>>
>>> I am being "gently" reminded from a couple of people that we are a 
>>> bit late on getting more instrument definitions ratified. If you 
>>> think that a instrument definition that you have been working on is 
>>> ready for ratification added to the list in the section at the 
>>> bottom of 
>>> <http://www.nexus.anl.gov/mediawiki/index.php?title=Instruments>
>>> We will hold a vote on the proposed definitions in the near future. 
>>> I am
>>> not saying when since it greatly depends on how fast everybody links

>>> to definitions.
>>>
>>> Also, feel free to update the links on this page to the proper 
>>> definitions as well.
>>>
>>> Peter Peterson
>>> NeXus International Advisory Committee, Chair
>>>
>>> _______________________________________________
>>> NeXus-committee mailing list
>>> NeXus-committee at anl.gov
>>> http://www.neutron.anl.gov/mailman/listinfo/nexus-committee
>>>  
>>>
>> _______________________________________________
>> NeXus-committee mailing list
>> NeXus-committee at anl.gov
>> http://www.neutron.anl.gov/mailman/listinfo/nexus-committee
>
>
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