Import Geant4 10.0.0 source tree

2016-06-10 11:51:14 +02:00
parent e2d2f9810a
commit 286caacf06
12421 changed files with 730077 additions and 502383 deletions
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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.          *
+// ********************************************************************
+//
+//
+// $Id: G4SamplingPostStepAction.cc 66241 2012-12-13 18:34:42Z gunter $
+//
+// ----------------------------------------------------------------------
+// GEANT 4 class source file
+//
+// G4SamplingPostStepAction.cc
+//
+// ----------------------------------------------------------------------
+
+#include "G4SamplingPostStepAction.hh"
+#include "G4Track.hh"
+#include "G4ParticleChange.hh"
+#include "G4VImportanceSplitExaminer.hh"
+#include "G4Nsplit_Weight.hh"
+#include "G4VTrackTerminator.hh"
+#include <sstream>
+
+G4SamplingPostStepAction::
+G4SamplingPostStepAction(const G4VTrackTerminator &TrackTerminator)
+  : fTrackTerminator(TrackTerminator)
+{
+}
+
+G4SamplingPostStepAction::~G4SamplingPostStepAction()
+{
+}
+
+void G4SamplingPostStepAction::DoIt(const G4Track& aTrack, 
+                                          G4ParticleChange *aParticleChange,
+                                    const G4Nsplit_Weight &nw)
+{  
+  // evaluate results from sampler
+  if (nw.fN>1)
+  {
+    // split track 
+    Split(aTrack, nw, aParticleChange);
+  }
+  else if (nw.fN==1)
+  {
+    // don't split, but weight may be changed ! 
+    aParticleChange->ProposeWeight(nw.fW);
+  }
+  else if (nw.fN==0)
+  {
+    // kill track
+    fTrackTerminator.KillTrack();
+  }
+  else
+  {
+    // wrong answer
+    std::ostringstream os;
+    os << "Sampler returned nw = "
+       << nw
+       << "\n";
+    G4String msg = os.str();
+    
+    G4Exception("G4SamplingPostStepAction::DoIt()",
+                "InvalidCondition", FatalException, msg);
+  }
+}
+
+void G4SamplingPostStepAction::Split(const G4Track &aTrack,
+                                     const G4Nsplit_Weight &nw,
+                                           G4ParticleChange *aParticleChange)
+{
+  aParticleChange->ProposeWeight(nw.fW);
+  aParticleChange->SetNumberOfSecondaries(nw.fN-1);
+  
+  for (G4int i=1;i<nw.fN;i++)
+  {
+    G4Track *ptrack = new G4Track(aTrack);
+    
+    //    ptrack->SetCreatorProcess(aTrack.GetCreatorProcess());
+    ptrack->SetWeight(nw.fW);
+    
+    if (ptrack->GetMomentumDirection() != aTrack.GetMomentumDirection())
+    {
+      G4Exception("G4SamplingPostStepAction::Split()", "InvalidCondition",
+                  FatalException, "Track with same momentum !");
+    }
+    aParticleChange->AddSecondary(ptrack);
+  }
+  return;
+}