|Message: Re: passing info to tracks||Not Logged In (login)|
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I agree with you, I can't find a pointer to the G4PrimaryParticle either in the G4Track class.
As for your other problem of not being able to add track information to the track because it is declared const in PreUserTrackingAction, there is one other solution besides handling the pointer in heretic C++ fashion, and that is using the G4TrackingManager to add the track-info to the (current) track, as is done in the examples:
e.g. employing the method: SetUserTrackInformation
Hope this helps, Peter