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===

Define the visualization mesh for the results of dynamic substructuring.

In the case of cyclic dynamic substructuring, the mesh is created by using all or part of the meshes (visualization mesh) of the sector structure and then by repeating it cyclically to reconstitute the overall structure.

In the case of general dynamic substructuring, the mesh is created by using all or part of the cells (visualization mesh) of the various substructures and then by combining them in order to reconstitute the overall structure.

The meshes used (called visualization meshes) do not necessarily support a finite element. This makes it possible to use visualization meshes in a reduced number, different from the calculation meshes, and representing roughly the shape of the structure (skeleton).

You can also create a skeleton from another skeleton from which some interface nodes will be merged according to a proximity criterion.

Restriction: The visualization meshes must be defined using nodes that support degrees of freedom of the calculation (there is no interpolation of the results).

*Warning:*

**Using the operand** TOUT =' OUI '**can lead to major performance issues. Always give preference to calling by specifying the groups of cells involved in the skeleton, especially when the meshes of the substructures constitute only a small part of the complete mesh.**

This operator creates a skeleton data structure.