+ ## Create a structural element from the list of commands \em commandList.
+ # Each command in this list represent a part of the structural element,
+ # that is a specific kind of shape (circular beam, grid, etc.)
+ # associated with one or several geometrical primitives. A command must
+ # be a tuple. The first element is the structural element part class
+ # name or alias name. The second element is a dictionary containing the
+ # parameters describing the part. Valid class names are all the classes
+ # defined in the module salome.geom.structelem.parts and inheriting
+ # parts.StructuralElementPart. There are also several
+ # aliases for backward compatibility. Here is the complete list:
+ # - parts.GeneralBeam
+ # - parts.CircularBeam
+ # - parts.RectangularBeam
+ # - parts.ThickShell
+ # - parts.Grid
+ # - parts.VisuPoutreGenerale() (alias for parts.GeneralBeam)
+ # - parts.VisuPoutreCercle() (alias for parts.CircularBeam)
+ # - parts.VisuPoutreRectangle() (alias for parts.RectangularBeam)
+ # - parts.VisuBarreGenerale() (alias for parts.GeneralBeam)
+ # - parts.VisuBarreRectangle() (alias for parts.RectangularBeam)
+ # - parts.VisuBarreCercle() (alias for parts.CircularBeam)
+ # - parts.VisuCable() (alias for parts.CircularBeam)
+ # - parts.VisuCoque() (alias for parts.ThickShell)
+ # - parts.VisuGrille() (alias for parts.Grid)
+ # - \b Orientation: This identifier is used to specify the orientation
+ # of one or several 1D structural element parts (i.e. beams). The
+ # parameters are described in class orientation.Orientation1D.
+ #
+ # The valid parameters in the dictionary depend on the type of the
+ # structural element part, and are detailed in the documentation of
+ # the corresponding class. The only parameter that is common to all the
+ # classes is "MeshGroups" (that can also be named "Group_Maille"). It
+ # defines the name of the geometrical object(s) in the study that will
+ # be used as primitives to build the structural element part. This
+ # parameter can be either a list of strings or a single string with
+ # comma separated names.