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[Question #703320]: Confusion about learning code in CohesiveFrictionalContactLaw.cpp

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From: xuanshenyu <question703320@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 28 Sep 2022 05:35:30 -0000
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New question #703320 on Yade:
https://answers.launchpad.net/yade/+question/703320

Hi, everyone

I don't understand how 'the bool Law2_ScGeom6D_CohFrictPhys_CohesionMoment::go(shared_ptr<IGeom>& ig, shared_ptr<IPhys>& ip, Interaction* contact)'  passes the updated normalForce to Phys.


Although the code has the following statement, 	
   'go(shared_ptr<IGeom>& ig, shared_ptr<IPhys>& ip, Interaction* contact)'//line132
   ' CohFrictPhys* phys  = YADE_CAST<CohFrictPhys*>(ip.get())//line138'
    'phys->normalForce = Fn * geom->normal;// line 226'
I did not find a definition or declaration of normalForce in  shared_ptr<IPhys> and CohFrictPhys*.

Probably my biggest confusion is not finding a definition or declaration of NormalForce.

PS:Maybe it's just that I didn't learn C++ well :(.

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