2. Syntax

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