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[Reza Housseini <question236237@xxxxxxxxxxxxxxxxxxxxx>]

New question #236237 on Yade:
https://answers.launchpad.net/yade/+question/236237

I'm writing a Callback Class to count Interactions. But as it seems interactions of  bodies which stay together persist as the simulation advances. Therefore I want to filter out this interactions by using the forces between the spheres.

I'm trying to use the IPhys class but I get an SIGSEGV/SIGABRT when calling the function.

    FOREACH(const shared_ptr<Interaction>& i, intrsList)
      {
        shared_ptr<IPhys> phys(i->phys);
        shared_ptr<NormPhys> normPhys(YADE_PTR_CAST<NormPhys>(phys));
        cout << normPhys->normalForce << endl;
      }

What is the poblem here, how to I get the Interaction properties from the IPhys and the IGeom class?

Thanks 
Cheers Reza

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