Syntax
=====

.. code-block:: text

    fiber = DEFI_GEOM_FIBRE (
        ◇ INFO =/1 (by default),
                 /2,
        ◆ | SECTION = _F (
               ◆ GROUP_FIBRE = text,
               ◆ | TOUT_SECT = "YES" (or not specified),
                 | GROUP_MA_SECT = grma,
               ◆ MAILLAGE_SECT = mesh,
               ◆ COOR_AXE_POUTRE = float,
               ◇ ANGLE = float,
            ),
          | FIBER = _F (
               ◆ GROUP_FIBRE = text,
               ◇ CARA =/"SURFACE" (by default),
                        /"DIAMETRE ",
               ◆ VALE = float,
               ◆ COOR_AXE_POUTRE = float,
               ◇ ANGLE = float,
            ),
        ◇ ASSEMBLAGE_FIBRE = _F (
             ◆ GROUP_ASSE_FIBRE = text,
             ◆ GROUP_FIBRE = text,
             ◆ COOR_GROUP_FIBRE = float,
             ◆ GX_GROUP_FIBRE = float,
          ),
    )
    
    ◆: mandatory
    ◇: optional
    : present by default
    &: together
    /: only one among
    |: several possible choices