|Message: Passing info to tracks||Not Logged In (login)|
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For each event, I have a bunch of inital particles I need to mark individually for the tracking.
As M. Asai suggested (26 may 2006), I made a PrimaryParticleInfo attached to each primary vertex, but I don't know how to transfer this info to track. M. Asai said that G4Track has a pointer to PrimaryParticle if it is a primary track, but this pointer doesn't appear in the G4Track class.
So I modified the ParticleDefinition class in adding an index before passing it to the ParticleGun.
Another problem appears : in PreUserTrackingAction, the track is stated as const, so it is not straightforward to add the info. The only ways I found is to use the G4TrackingManager::GetTrack () to retrieve the track as non const, or to uncast the track with const_cast<G4Track*> (which is a bit heretic ...)
Has somebody a more elegant solution ?
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