exgps/src/TrackingAction.cc

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0026 //
0027 /// \file eventgenerator/exgps/src/TrackingAction.cc
0028 /// \brief Implementation of the TrackingAction class
0029 //
0030 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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0032
0033 #include "TrackingAction.hh"
0034
0035 #include "HistoManager.hh"
0036
0037 #include "G4PhysicalConstants.hh"
0038 #include "G4SystemOfUnits.hh"
0039 #include "G4Track.hh"
0040
0041 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0042
0043 TrackingAction::TrackingAction() : G4UserTrackingAction() {}
0044
0045 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0046
0047 void TrackingAction::PreUserTrackingAction(const G4Track* track)
0048 {
0049   G4int pid = track->GetDynamicParticle()->GetPDGcode();
0050   G4double ekin = track->GetKineticEnergy();
0051   G4ThreeVector vertex = track->GetPosition();
0052   G4ThreeVector direction = track->GetMomentumDirection();
0053   G4double weight = track->GetWeight();
0054
0055   G4double x = vertex.x(), y = vertex.y(), z = vertex.z();
0056   G4double theta = direction.theta(), phi = direction.phi();
0057   if (phi < 0.) phi += twopi;
0058   G4double cost = std::cos(theta);
0059
0060   G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
0061
0062   G4double r = vertex.mag();
0063   G4double dr = analysisManager->GetH1Width(2);
0064   G4double dv = 2 * twopi * r * r * dr;
0065
0066   // fill histograms
0067   analysisManager->FillH1(1, ekin);
0068   if (dv > 0.) analysisManager->FillH1(2, r, 1. / dv);
0069   analysisManager->FillH1(3, cost);
0070   analysisManager->FillH1(4, phi);
0071   analysisManager->FillH2(1, x, y);
0072   analysisManager->FillH2(2, y, z);
0073   analysisManager->FillH2(3, z, x);
0074   analysisManager->FillH2(4, phi, cost);
0075   analysisManager->FillH2(5, phi, theta);
0076
0077   // fill ntuple
0078   analysisManager->FillNtupleIColumn(0, pid);
0079   analysisManager->FillNtupleDColumn(1, ekin);
0080   analysisManager->FillNtupleDColumn(2, x);
0081   analysisManager->FillNtupleDColumn(3, y);
0082   analysisManager->FillNtupleDColumn(4, z);
0083   analysisManager->FillNtupleDColumn(5, theta);
0084   analysisManager->FillNtupleDColumn(6, phi);
0085   analysisManager->FillNtupleDColumn(7, weight);
0086   analysisManager->AddNtupleRow();
0087 }
0088
0089 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....