Manual pages | Cast3M

$$$$ EXCO     NOTICE  CHAT      11/09/12    21:16:07     7124           
                                             DATE     11/09/12

    Operateur EXCO                           Voir aussi : EXTR MOTS
    --------------   
     CH2 =  EXCO  | MOT1  CH1 ('NOID') (MOT2)  |
                  |                            | ('NATURE'|'INDETER')
                  |                            |          |'DIFFUS' )
                  |                            |          |'DISCRET') ;
                  | LISM1 CH1 ('NOID') (LISM2) |



    Description :
    _____________
 
    This operator creates from a field, a field of same type
 by extracting one or several given components.


    Contents :
    __________

    CH1   : field (CHPOINT or MCHAML type)

    MOT1  : name of a component of the field CH1 (MOT type)

    MOT2  : name allocated to the extracted component (MOT type)

    CH2   : generated object of same type as CH1 (CHPOINT or
            MCHAML type)

    LISM1 : name of several components of the field CH1 
            (LISTMOTS type)

    LISM2 : names allocated to the extracted components
            (LISTMOTS type)


    Notes :
    _________

  1. If a single field component has been extracted, the extracted 
component is called MOT2 (MOT type) if this word is given, otherwise 
it is called MOT1 for MCHAML type fields or 'SCAL' for CHPOINT type 
fields.

    If the component named MOT1 does not exist in the field CH1,
 the operator warns the user that there is an error, except when 
 the word 'NOID' is used; in this case, the operator creates a 
 blank field CH2.

  2. If several components are extracted from a field, the extracted
components keep their name, except when LISM2 is given : in this case, 
LISM1 and LISM2 must have the same length.

    If a component defined in LISM1 does not exist in the field CH1,
 the operator warns the user that there is an error except when the
 word 'NOID' is used.
   
   This is possible only for CHPOINT or MCHAML type fields.

  3. Specifing the nature is only possible for CHPO type of objects.
     If the nature is omitted then the nature of the CHPO by argument
     is taken.