[Nexus-developers] [NeXus-committee] NXguide and NXmirror

[Mark Koennecke]

Pete,

Pete R. Jemian wrote:
>
> NXguide and NXmirror look a lot alike.  Almost identical.  I'm editing 
> NXmirror now based on feedback from the DESY workshop last month.
>
> There are two TRAC tickets that apply as well:
> http://trac.nexusformat.org/definitions/ticket/41  NXguide
> http://trac.nexusformat.org/definitions/ticket/45  NXmirror
>
> From my limited point of view, NXguide is redundant. If you agree, we 
> should consider deprecating or removing it.  However if you object to 
> that proposition, please take on the job of providing much better 
> documentation, especially the initial documentation string that now 
> reads "Template of NXguide".
>
I agree that NXguide is in bad shape. But basically a guide consists of 
several mirrors building a shape through
which neutrons can be guided. The simplest such form is just box shaped. 
But these days people are building
elliptical guides too. The individual parts of a guide usually have the 
same characteristics but there are cases
where they are different. I now start wondering if we should make 
NXguide a collection of NXmirrors each having
their own NXgeometries describing where they are. But I disagree that 
guide are superfluous.

Mark

> Now that parts of the manual are generated from the NXDL files, we 
> should add documentation into the NXDL files appropriate to each 
> defined item.  NXguide is a case in point.
>
> Pete
>
>