|Message: Saving G4THitsCollection in a TBranch (ROOT)||Not Logged In (login)|
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I am coding a simulation where all the step information are saved into a G4THitsCollection. I would like to save it directly into a TBranch of ROOT but when I try to do this :
G4THitsCollection<CalorimeterHit> CalorimeterHitsCollection; CalorimeterHitsCollection* trackerCollection; ntupl->Branch("event", &trackerCollection);
I got the following error :
<TTree::Branch>: The pointer specified for event is not of a class known to ROOT
I tried to change its type to a TClass by casting, but no change. Anybody knows how to do this ?
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