[NeXus-definitions-tickets] [NeXusDefinitions] #32: dimensions in NXDL

[NeXus Base Classes and Instrument Definitions]

#32: dimensions in NXDL
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Reporter:  Pete Jemian  |        Owner:  Pete Jemian
    Type:  task         |       Status:  assigned   
Priority:  major        |   Resolution:             
Keywords:               |  
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Comment (by Pete Jemian):

 Pete Jemian wrote in an email:

 Regarding the definition of dimensions, so far, so good.
 Now, here is part of (revised) NXbeam.nxdl.xml:

 {{{
   <field name="final_wavelength_spread" type="NX_FLOAT" units="NX_LENGTH">
       <doc>Wavelength spread FWHM of beam leaving this component</doc>
       <dimensions size="[:]" />
   </field>
   <field name="final_beam_divergence" type="NX_FLOAT" units="NX_ANGLE">
       <doc>Divergence FWHM of beam leaving this component</doc>
       <dimensions size="2"><!-- [2,:] --></dimensions>
   </field>
   <field name="flux" type="NX_FLOAT" units="NX_FLUX">
       <doc>flux incident on beam plane area</doc>
       <dimensions size="i" />
   </field>
 }}}

 How do we handle this?  (So far, it is valid by the changes in NXDL
 rules.)
 Also, we need better documentation strings than given below.

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Ticket URL: <http://trac.nexusformat.org/definitions/ticket/32#comment:2>
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