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ivoa-std / VOUnits

Units in the VO
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VOUnits

Units in the VO

This document describes a recommended syntax for writing the string representation of unit labels ("VOUnits") in the VO landscape.

Current Status

The current stable IVOA Recommendation is REC-VOUnits-1.1 (available from IVOA Documents Repository).

Licence

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Building this document

To build this document, if you have 'make' and 'awk', simply give the command:

% make VOUnits.pdf

This generates the file known-units.tex (derived from unity-grammars/known-units.csv) and runs LaTeX on the document source.

The contents of the directory unity-grammars, containing the machine-readable version of the list of known units, and the yacc-style grammars, is derived from the Unity project; see https://purl.org/nxg/dist/unity (which refers to the repository at https://heptapod.host/nxg/unity). You can obtain an updated copy of the grammars from the Unity distribution, or by checking out the repository, and building src/grammar/unity-grammars.zip. In either case, unzip the contents here and commit the update.