[Gmsh] Problem with element displacement visualization in MSH post-processing format

[S. Mehrpay]

Dear GMSH development team,

As mentioned in the documentations, it is possible to visualize the
deformation of the elements by setting ‘Vector display’ to ‘Displacement’
or using general expressions in view transformation.
Unfortunately non of these methods will provide the ability to show element
rotations. Is there a possibility to  show element rotations along with the
elements displacements?
It would be great if it was possible to use another vector data source in
'view>transfo> general transformation expressions' to visualize the
rotation along with tranformation.

Best regards,
S. Mehrpay
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