|Message: GetMomentumDirection please explain||Not Logged In (login)|
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kindly clarify my doubt regarding momentum direction vector.
suppose i get aStep->GetPreStepPoint()//(0,0,-2) aStep->GetPreStepPoint()->GetMomentumDirection()//(-.5,.3,.7)
in which direction is particle moving with respect to origin,
Please see attached picture file which face side is particle is moving and little explanation (better if graphical).
i tried this Point [P]<x,y,z> on any face
[P]= [GetPreStepPoint()] + t * [GetMomentumDirection()]
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