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[Jerome Duriez <jerome.duriez@xxxxxxxxxxxxxxx>]

Hello,


> then i later want to update the gravity during the simulation, for example
> gravity=(0,0,-9810)
>
> How should I do that?
I guess it should be possible if you affect your GravityEngine to a 
variable (GE for example) : either from the beginning, or either by 
picking it at one time thanks to his name

   GE = o.labeledEngine('GravityEngine') (check the name of the class 
maybe in YADE_CLASS_BASE... of the .hpp)

Then you should have the possibility to modifiy easily the value of one 
of his attribute, with :

   GE['gravity"]=...

Jerome

--
Jérôme Duriez
ATER Iut 1 Grenoble, département GMP - Laboratoire 3S-R
04.56.52.86.49 (ne pas laisser de messages sur le répondeur)