DATE     98/01/08

    Opérateur MOINS                             See also :PLUS 
    ---------------                                       DEPL 

    Description :
    _____________

    The MOINS operator may be used in the following cases :

    -----------------------
    |  1st possibility    |
    -----------------------
   
              OBJ2 = OBJ1 MOINS | VEC1     ;
                                | CHPO1 
 
        NOBJ1   ... NOBJN  = OBJ1 ...  OBJN  MOINS |  VEC1    ;
                                                   |  CHPO1 

    Description :
    _____________
 
    The MOINS operator is equivalent to the PLUS operator where 
    VEC1 or CHPO1 are multiplied per -1.

    Contents :
    __________
   
         OBJ1 : POINT or MAILLAGE or CHPOINT or MCHAML or MMODEL types 
                the RIGIDITE type is allowed for a translation from -VEC1
                but forbidden for the transformation from -CHPO1

      OBJ1 ... OBJN : see OBJ1

         VEC1 : POINT type

        CHPO1 : CHPOINT type
  
         OBJ2 : result of the same type than OBJ1

    NOBJ1 ... NOBN : results of the same type than OBJ1 ... OBJN 


    -----------------------
    |  2nd possibility    |
    -----------------------
   
              CHPO1 = GEO2 MOINS GEO1 ;

    Description :
    _____________

    The MOINS operator creates a CHPOINT corresponding to the transformation
    associating GEO1 to GEO2, when it exists. The geometrical support of CHPO1
    is composed of the points of GEO1.

    Contents :
    __________
   
        GEO1 : MAILLAGE type

        GEO2 : MAILLAGE type, equivalent to GEO1 in topology

        CHPO1 : CHPOINT type