[Nexus] unit_cell in NXsample

[Tobias.Richter at diamond.ac.uk]

The unit_cell in NXsample is defined like this:

<field name="unit_cell" type="NX_FLOAT" units="NX_LENGTH">

<doc>Unit cell parameters (lengths and angles)</doc>

<dimensions rank="2">

<dim index="1" value="n_comp"/>

<dim index="2" value="6"/>

</dimensions>

</field>


Since it already says "lengths and angles" the fact that the required units are NX_LENGTH is a bit puzzling. No units for the angles?

Would it be sensible to have "length_units" and "angle_units" attributes?

Tobias



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