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[Lionel Favier <lfavier@xxxxxxxxxxxxxxx>]

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> Today's Topics:
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>    1. Is there a method to change the parameters during a
>       simulation (Feng, Chen)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 7 Mar 2007 02:37:19 -0500
> From: "Feng, Chen" <fchen3@xxxxxxx>
> Subject: [Yade-users] Is there a method to change the parameters
> 	during a	simulation
> To: yade-users <yade-users@xxxxxxxxxxxxxxxx>
> Message-ID: <45F7FE26@xxxxxxxxxxxxxxx>
> Content-Type: text/plain; charset="ISO-8859-1"
>
> Hi, all:
>
> I am now trying to make a simulation of based on SDECSpheresPlane, however, I 
> want to make the damping coefficient 0.3 for the first 1000 steps and 0.4 for 
> the next 1000 steps, is it possible to program it in YADE?
>
> Thanks a lot!
>
> Feng Chen
>
>
>
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> End of Yade-users Digest, Vol 9, Issue 4
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>   
Hello Feng,

I didn't try it but maybe you could do the following :

- In "CundallNonViscousForceDamping.hpp", you declare damping as a vector2r
- In "SDECSpheresPlane.cpp", you do the same with 0.3 and 0.4 as both 
values of the vector
- In "CundallNonViscousForceDamping.cpp", you add a condition like :
if (Omega::instance().getTimeStep() < 1000) {Real dampN=damping[0]}
else {Real dampN=damping[0]}

It should work !!!!!!!!

Lionel Favier


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