|Message: Re: Event by Event Data||Not Logged In (login)|
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Hi, The Run::RecordEvent is suitable for recording event by event data. (Or EventAction::EndOfEventAction() will be OK too.) The following line in your code gets a hits collection (G4THisMap) corresponding to a give collection ID (id). // Get the hit collection corresponding to "id" G4THitsMap<G4double>* eventHitsMap = dynamic_cast< G4THitsMap<G4double>* >(eventHitCollection->GetHC(id)); You can access each value inside eventHitsMap by using a copy number of cell (CellID) as follows: G4double* ptr = (*eventHitsMap)[cellID]; The "ptr" is a pointer to the value of the cell. If the pointer "ptr" is null, it means that it has no data in the cell. (For example, there was no track in the cell) You may prefer to set zero if there is no data in the cell. f.e. if ( !ptr ) ptr = new double(0.0); You can get the quantity of the "ptr" using (*ptr). For example, G4double quantity = (*ptr); In examples/extended/runAndEvent/RE02/, you can find an example how to do it. Please look at src/RE02Run.cc and RE02RunAction.cc. Best regards, Tsukasa ASO
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