Import Geant4 10.5.0.beta source tree

2018-06-29 10:58:11 +02:00
parent fe81a77428
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+//
+// ********************************************************************
+// * License and Disclaimer                                           *
+// *                                                                  *
+// * The  Geant4 software  is  copyright of the Copyright Holders  of *
+// * the Geant4 Collaboration.  It is provided  under  the terms  and *
+// * conditions of the Geant4 Software License,  included in the file *
+// * LICENSE and available at  http://cern.ch/geant4/license .  These *
+// * include a list of copyright holders.                             *
+// *                                                                  *
+// * Neither the authors of this software system, nor their employing *
+// * institutes,nor the agencies providing financial support for this *
+// * work  make  any representation or  warranty, express or implied, *
+// * regarding  this  software system or assume any liability for its *
+// * use.  Please see the license in the file  LICENSE  and URL above *
+// * for the full disclaimer and the limitation of liability.         *
+// *                                                                  *
+// * This  code  implementation is the result of  the  scientific and *
+// * technical work of the GEANT4 collaboration.                      *
+// * By using,  copying,  modifying or  distributing the software (or *
+// * any work based  on the software)  you  agree  to acknowledge its *
+// * use  in  resulting  scientific  publications,  and indicate your *
+// * acceptance of all terms of the Geant4 Software license.          *
+// ********************************************************************
+//
+// This example is provided by the Geant4-DNA collaboration
+// Any report or published results obtained using the Geant4-DNA software 
+// shall cite the following Geant4-DNA collaboration publication:
+// Med. Phys. 37 (2010) 4692-4708
+// The Geant4-DNA web site is available at http://geant4-dna.org
+//
+// $ID$
+/// \file SplitProcess.cc
+/// \brief Implementation of the variance reduction particle split class
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
+
+#include "SplitProcess.hh"
+#include "UserTrackInformation.hh"
+
+#include "G4Track.hh"
+#include "G4VParticleChange.hh"
+#include "G4LogicalVolume.hh"
+#include "G4TouchableHandle.hh"
+#include "G4Region.hh"
+#include "G4RegionStore.hh"
+
+#include <vector>
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
+
+SplitProcess::SplitProcess(G4String regName, G4int nsplit)
+:fRegionName(regName), fNSplit(nsplit)
+{
+    fRegion = G4RegionStore::GetInstance()->FindOrCreateRegion(fRegionName);
+}
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
+
+SplitProcess::~SplitProcess() {
+}
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
+
+G4VParticleChange* SplitProcess::PostStepDoIt(const G4Track& track, const G4Step& step) {
+    G4VParticleChange* particleChange(0);
+    
+    if ( step.GetPreStepPoint()->GetTouchableHandle()->GetVolume()->GetLogicalVolume()
+                                                          ->GetRegion() != fRegion ) {
+        particleChange = pRegProcess->PostStepDoIt(track, step);
+        assert ( 0 != particleChange);
+        return particleChange;
+    }
+    
+    if (  fNSplit == 1 ) {
+        particleChange = pRegProcess->PostStepDoIt(track, step);
+        assert ( 0 != particleChange);
+        return particleChange;
+    }
+    
+    UserTrackInformation* parentInformation = 
+                          (UserTrackInformation*)(step.GetTrack()->GetUserInformation());
+    G4int initialSplitTrackID = parentInformation->GetSplitTrackID();
+    
+    if ( initialSplitTrackID > 1 ) {
+        particleChange = pRegProcess->PostStepDoIt(track, step);
+        assert ( 0 != particleChange);
+        return particleChange;
+    }
+    
+    G4double weight = track.GetWeight()/fNSplit;
+    G4int splitTrackID = 3;
+    
+    std::vector<G4Track*> secondaries;
+    std::vector<G4int> vSplitTrack;
+    
+    for ( int i = 0; i < fNSplit; i++ ) {
+        particleChange = pRegProcess->PostStepDoIt(track, step);
+        assert( 0 !=  particleChange);
+        particleChange->SetVerboseLevel(0);
+        G4Track* newTrack = new G4Track(*(particleChange->GetSecondary(0)));
+
+        secondaries.push_back( newTrack );
+        vSplitTrack.push_back( splitTrackID );
+        
+        splitTrackID++;
+    }
+    
+    parentInformation->SetSplitTrackID(2);
+    
+    particleChange->SetNumberOfSecondaries(secondaries.size());
+    particleChange->SetSecondaryWeightByProcess(true);
+    
+    std::vector<G4Track*>::iterator iter = secondaries.begin();
+    G4int i = 0;
+    while( iter != secondaries.end() ) {
+        G4Track* newTrack = *iter;
+        newTrack->SetWeight(weight);
+        
+        UserTrackInformation* secondaryInformation = new UserTrackInformation();
+        secondaryInformation->SetSplitTrackID(vSplitTrack[i]);
+        newTrack->SetUserInformation(secondaryInformation);
+        
+        particleChange->AddSecondary(newTrack);
+
+        iter++;
+        i++;
+    }
+    
+    return particleChange;
+}
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......