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$$$$ ORDO     NOTICE  JC220346  12/09/13    21:15:09     7504           
                                             DATE     12/09/13

    Operateur ORDONNER                       Voir aussi : UNIQ
    ------------------   

 OBJ2 (OBJ4) = ORDONNER |(CROISSANT)  | (ABSOLU) (UNIQUE) OBJ1 (OBJ3) ;
                        |(DECROISSANT)|

                      OBJ2=LISTREEL,LISTENTI,MAILLAGE,EVOLUTIO
                      OBJ4=LISTREEL,LISTENTI


    Description :
    _____________

    The ORDONNER operator sorts an object OBJ1 in ASCENDING order
    ('CROISSANT' keyword, by default) or in DESCENDING order
    ('DECROISSANT' keyword).

    'ABSOLU' means that the procedure must only consider the absolute
    value of OBJ1 for the sorting.

    'UNIQUE' removes duplicates in OBJ1 after it has been sorted. This
    keyword is available only if OBJ1 is of LISTENTI or LISTREEL type,
    and if OBJ3 is not provided.

    The possible types for the OBJET1 object are LISTREEL, LISTENTI,
    EVOLUTION et MAILLAGE :

    - If OBJ1 is a LISTREEL or a LISTENTI, the user can provide another
      list OBJ3 (LISTREEL or LISTENTI type) which will be permuted in
      the same way as OBJ1 (the 'UNIQUE' keyword is then inactive).

    - If OBJ1 is an EVOLUTION, the object is ordered according to the
      x-axis. The 'UNIQUE' keyword does not apply to EVOLUTION objects.
      Moreover, OBJ3 must not be provided.

    - If OBJET1 is a MAILLAGE, it will have to be composed of SEG2 or
      SEG3 arranged in a continuous line. As a result, the mesh will be
      reorganized so as to describe the line from one end to the other.
      If the elements are of type POI1, the mesh is reorganized
      according to the distance from the first point. In other cases,
      the mesh is reordered by element vicinity. None of the keywords
      apply to MAILLAGE objects. Moreover, OBJ3 must not be provided.