How to output the ori by Euler-Bunge?

[siwux]

How to output the ori by Euler-Bunge instead of Rodrigues

[mkasemer]

@siwux The orientations are written in output in the same parameterization and convention as given in the input (specifically the mesh):

$ElsetOrientations
nelset rodrigues:active
...
$EndElsetOrientations

and potentially the same in the $ElementOrientations section, if you supply per-element orientations. Please consult the FEPX documentation for a full description.

You can either edit this manually, or consult the Neper documentation to have your mesh write orientations in the desired parameterization.