[Nexus] HDF compatibility issues

[Frédéric OTT]

Dear Nexus users,

I have recently implemented Nexus I/O for my programs (in order to have 
a flexible data storage).
However, I am experiencing a limited compatibility with General Purpose 
HDF plotters (such as Compaq Array Visualisator or Transform)

The main problem is related to the way the X, Y lambda scales are stored.
In the Nexus format, the axis have "axis" and "primary" attributes. 
However, this convention is Nexus Specific.
In general HDF files, the data sets containing the scales are stored in 
the 2D sets as a reference to the sets containing the scales..
This means that when reading Nexus files in a HDF plotter, the axis 
values are lost (and have to be reconstructed, tedious).
I am correct? (I might perhaps  have missed some point) but no function 
to do that seems available in the Nexus API.

Could it be possible to add some function in the Nexus API in order to 
put a reference to the axis sets in the data sets themselves so as to 
have a better HDF compatibility?

What is your opinion?

Frédéric OTT
Lab. Léon Brillouin CEA/CNRS
CEA Saclay
91191 Gif sur Yvette