Syntax
=====

.. code-block:: text

    mesh = RAFF_GP (
        ◆ MAILLAGE_N = mesh,
        ◆ TRANCHE_2D = _F (
             ◆ CENTRE = float,
             ◆ RAYON = float,
             ◆ ANGLE = float,
             ◆ TAILLE = float,
             ◆ NB_ZONE = int,
          ),
        ◇ NB_RAFF = int (default: 4),
    )
    
    ◆: mandatory
    ◇: optional
    : present by default
    &: together
    /: only one among
    |: several possible choices