yade-users team mailing list archive

[sega <dorofeenko@xxxxxxxxx>]

> How and where do you load these particles? If you load/save simulation,
> prevVelocities will be empty and the problem doesn't arise.

The particles are loaded through the boot bunker, pass through a reactor and 
unloaded, after which they must again be loaded through the boot bunker. If 
interested, I can mail example video (about 3MB, tell me where).

> You could make the vector<Vector3r>
> LeapFrogPositionIntegrator::prevVelocities public, then you could change
> it from anywhere: reset prevVelocities for particles in question and set
> velocity of the particle itself to zero as well.

But this way will be private. In doing so, I must know exactly what integrator 
is used to find it in the engines list. If I decide to use another integrator 
(now I use NewtonsDampedLaw), I will have to modify my engines...

But if we add the resetVelocity flag to ParticlesParameters, then setting the 
required velocity of a body and setting the flag we say algorithm to 
initialize difference schemes again. No need to know about integrators...

-- 
Best regards, Sergei D.
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