Switching objects on and off with userdat

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 13/01/2005 at 08:14, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   8.500 
Platform:      Mac OSX  ; 
Language(s) :   C.O.F.F.E.E  ;

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I have to realize a function that enables me to automatically switching objects on and off. I have about 9000 objects. The date of creation of these objects can be found in their names:
BODY_1961_RD_Thor_Ablestar_fragmentation_debris

For tha animation I have to show all the objects that were created before a certain time, e.g. show all objects form start to 1990.
My idea was to use a COFFEE Expression for the parent object and to create a user data field that contains the year. My questions are:
Is this a good way to do it, or can a better way be found?
How can I read the user date field using COFFE? (didn't find that by searching the reference)

Thanks
   Bernd

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 14/01/2005 at 08:06, xxxxxxxx wrote:

I don't think it's possible to access the user data with C.O.F.F.E.E. My recommendation would be to animate some secondary parameter, for example the position of a dummy object, and then use that in the script. Or you could use Xpresso.