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put common stuff into helper functions
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| @@ -0,0 +1,71 @@ | ||
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| //========================================================================== | ||
| // AIDA Detector description implementation | ||
| //-------------------------------------------------------------------------- | ||
| // Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN) | ||
| // All rights reserved. | ||
| // | ||
| // For the licensing terms see $DD4hepINSTALL/LICENSE. | ||
| // For the list of contributors see $DD4hepINSTALL/doc/CREDITS. | ||
| // | ||
| // Author : M.Frank | ||
| // | ||
| //========================================================================== | ||
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| #include "Geant4UserParticleHandlerHelper.h" | ||
| #include <DDG4/Geant4Particle.h> | ||
| #include <DDG4/Geant4UserParticleHandler.h> | ||
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| // using namespace dd4hep::sim; | ||
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| namespace dd4hep::sim { | ||
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| void setReason(Geant4Particle& p, bool starts_in_trk_vol, bool ends_in_trk_vol) { | ||
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| dd4hep::detail::ReferenceBitMask<int> reason(p.reason); | ||
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| if( reason.isSet(G4PARTICLE_PRIMARY) ) { | ||
| //do nothing | ||
| } else if( starts_in_trk_vol && ! reason.isSet(G4PARTICLE_ABOVE_ENERGY_THRESHOLD) ) { | ||
| // created in tracking volume but below energy cut | ||
| p.reason = 0; | ||
| return; | ||
| } | ||
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| // created and ended in calo but not primary particle | ||
| // | ||
| // we can have particles from the generator only in the calo, if we have a | ||
| // long particle with preassigned decay, we need to keep the reason or the | ||
| // MChistory will not be updated later on | ||
| if( not reason.isSet(G4PARTICLE_PRIMARY) ) { | ||
| if( !starts_in_trk_vol ) { | ||
| if( !ends_in_trk_vol ){ | ||
| p.reason = 0; | ||
| } | ||
| //fg: dont keep backscatter that did not create a tracker hit | ||
| else if( ! reason.isSet(G4PARTICLE_CREATED_TRACKER_HIT) ) { | ||
| p.reason = 0; | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| void setSimulatorStatus(Geant4Particle& p, bool starts_in_trk_vol, bool ends_in_trk_vol) { | ||
| // Set the simulator status bits | ||
| dd4hep::detail::ReferenceBitMask<int> simStatus(p.status); | ||
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| if( ends_in_trk_vol ) { | ||
| simStatus.set(G4PARTICLE_SIM_DECAY_TRACKER); | ||
| } | ||
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| // if the particle doesn't end in the tracker volume it must have ended in the calorimeter | ||
| if( not ends_in_trk_vol && not simStatus.isSet(G4PARTICLE_SIM_LEFT_DETECTOR) ) { | ||
| simStatus.set(G4PARTICLE_SIM_DECAY_CALO); | ||
| } | ||
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| if( not starts_in_trk_vol && ends_in_trk_vol ) { | ||
| simStatus.set(G4PARTICLE_SIM_BACKSCATTER); | ||
| } | ||
| } | ||
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| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
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| //========================================================================== | ||
| // AIDA Detector description implementation | ||
| //-------------------------------------------------------------------------- | ||
| // Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN) | ||
| // All rights reserved. | ||
| // | ||
| // For the licensing terms see $DD4hepINSTALL/LICENSE. | ||
| // For the list of contributors see $DD4hepINSTALL/doc/CREDITS. | ||
| // | ||
| // Author : M.Frank | ||
| // | ||
| //========================================================================== | ||
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| #ifndef DDG4_GEANT4USERPARTICLEHANDLERHELPER_H | ||
| #define DDG4_GEANT4USERPARTICLEHANDLERHELPER_H | ||
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| /// Namespace for the AIDA detector description toolkit | ||
| namespace dd4hep { | ||
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| /// Namespace for the Geant4 based simulation part of the AIDA detector description toolkit | ||
| namespace sim { | ||
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| // Forward declarations | ||
| class Geant4Particle; | ||
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| /// determines if particle should be kept and sets p.reason = 0 otherwise | ||
| void setReason(Geant4Particle& p, bool starts_in_trk_volume, bool ends_in_trk_volume); | ||
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| /// determines if particle has ended in the tracker, calorimeter or if it is backscatter and sets simulator status accordingly | ||
| void setSimulatorStatus(Geant4Particle& p, bool starts_in_trk_volume, bool ends_in_trk_volume); | ||
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| } | ||
| } | ||
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| #endif // DDG4_GEANT4USERPARTICLEHANDLERHELPER_H |