Import Geant4 7.1.0 source tree

2016-06-09 12:11:21 +02:00
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+//
+// ********************************************************************
+// * DISCLAIMER                                                       *
+// *                                                                  *
+// * The following disclaimer summarizes all the specific disclaimers *
+// * of contributors to this software. The specific disclaimers,which *
+// * govern, are listed with their locations in:                      *
+// *   http://cern.ch/geant4/license                                  *
+// *                                                                  *
+// * 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.                                                             *
+// *                                                                  *
+// * This  code  implementation is the  intellectual property  of the *
+// * GEANT4 collaboration.                                            *
+// * By copying,  distributing  or modifying the Program (or any work *
+// * based  on  the Program)  you indicate  your  acceptance of  this *
+// * statement, and all its terms.                                    *
+// ********************************************************************
+//
+//
+// $Id: G4ParticleChangeForGamma.hh,v 1.3 2005/05/30 18:23:35 vnivanch Exp $
+// GEANT4 tag $Name: geant4-07-01 $
+//
+//
+// ------------------------------------------------------------
+//	GEANT 4 class header file
+//
+//
+// ------------------------------------------------------------
+//   15 April 2005 V.Ivanchenko for gamma EM processes
+//
+//   Modified:
+//   30.05.05 V.Ivanchenko add UpdateStepForAtRest
+//
+// ------------------------------------------------------------
+//
+//  Class Description
+//  This class is a concrete class for ParticleChange for gamma processes
+//
+#ifndef G4ParticleChangeForGamma_h
+#define G4ParticleChangeForGamma_h 1
+
+#include "globals.hh"
+#include "G4ios.hh"
+#include "G4VParticleChange.hh"
+
+class G4DynamicParticle;
+
+class G4ParticleChangeForGamma: public G4VParticleChange
+{
+public:
+  // default constructor
+  G4ParticleChangeForGamma();
+
+  // destructor
+  virtual ~G4ParticleChangeForGamma();
+
+  // with description
+  // ----------------------------------------------------
+  // --- the following methods are for updating G4Step -----
+
+  G4Step* UpdateStepForAtRest(G4Step* pStep);
+  G4Step* UpdateStepForPostStep(G4Step* Step);
+  // A physics process gives the final state of the particle
+  // based on information of G4Track
+
+  void InitializeForPostStep(const G4Track&);
+  //Initialize all propoerties by using G4Track information
+
+  void AddSecondary(G4DynamicParticle* aParticle);
+  // Add next secondary
+
+  G4double GetProposedKineticEnergy() const;
+  void SetProposedKineticEnergy(G4double proposedKinEnergy);
+  // Get/Set the final kinetic energy of the current particle.
+
+  const G4ThreeVector& GetProposedMomentumDirection() const;
+  void ProposeMomentumDirection(G4double Px, G4double Py, G4double Pz);
+  void ProposeMomentumDirection(const G4ThreeVector& Pfinal);
+  // Get/Propose the MomentumDirection vector: it is the final momentum direction.
+
+  const G4ThreeVector& GetProposedPolarization() const;
+  void ProposePolarization(const G4ThreeVector& dir);
+  void ProposePolarization(G4double Px, G4double Py, G4double Pz);
+
+  virtual void DumpInfo() const;
+
+  // for Debug
+  virtual G4bool CheckIt(const G4Track&);
+
+protected:
+  // hide copy constructor and assignment operaor as protected
+  G4ParticleChangeForGamma(const G4ParticleChangeForGamma &right);
+  G4ParticleChangeForGamma & operator=(const G4ParticleChangeForGamma &right);
+
+private:
+
+  const G4Track* currentTrack;
+  // The pointer to G4Track
+
+  G4double proposedKinEnergy;
+  //  The final kinetic energy of the current particle.
+
+  G4ThreeVector proposedMomentumDirection;
+  //  The final momentum direction of the current particle.
+
+  G4ThreeVector proposedPolarization;
+  //  The final momentum direction of the current particle.
+};
+
+// ------------------------------------------------------------
+
+inline G4double G4ParticleChangeForGamma::GetProposedKineticEnergy() const
+{
+  return proposedKinEnergy;
+}
+
+inline void G4ParticleChangeForGamma::SetProposedKineticEnergy(G4double energy)
+{
+  proposedKinEnergy = energy;
+}
+
+inline
+ const G4ThreeVector& G4ParticleChangeForGamma::GetProposedMomentumDirection() const
+{
+  return proposedMomentumDirection;
+}
+
+inline
+ void G4ParticleChangeForGamma::ProposeMomentumDirection(const G4ThreeVector& dir)
+{
+  proposedMomentumDirection = dir;
+}
+
+inline
+ void G4ParticleChangeForGamma::ProposeMomentumDirection(G4double Px, G4double Py, G4double Pz)
+{
+  proposedMomentumDirection.setX(Px);
+  proposedMomentumDirection.setY(Py);
+  proposedMomentumDirection.setZ(Pz);
+}
+
+inline
+ const G4ThreeVector& G4ParticleChangeForGamma::GetProposedPolarization() const
+{
+  return proposedPolarization;
+}
+
+inline
+ void G4ParticleChangeForGamma::ProposePolarization(const G4ThreeVector& dir)
+{
+  proposedPolarization = dir;
+}
+
+inline
+ void G4ParticleChangeForGamma::ProposePolarization(G4double Px, G4double Py, G4double Pz)
+{
+  proposedPolarization.setX(Px);
+  proposedPolarization.setY(Py);
+  proposedPolarization.setZ(Pz);
+}
+
+inline void G4ParticleChangeForGamma::InitializeForPostStep(const G4Track& track)
+{
+  theStatusChange = track.GetTrackStatus();
+  theLocalEnergyDeposit = 0.0;
+  InitializeSecondaries(track);
+  theParentWeight = track.GetWeight();
+  proposedKinEnergy = track.GetKineticEnergy();
+  proposedMomentumDirection = track.GetMomentumDirection();
+  proposedPolarization = track.GetPolarization();
+  currentTrack = &track;
+}
+
+//----------------------------------------------------------------
+// method for updating G4Step
+//
+
+inline G4Step* G4ParticleChangeForGamma::UpdateStepForAtRest(G4Step* pStep)
+{
+  pStep->AddTotalEnergyDeposit( theLocalEnergyDeposit );
+  pStep->SetStepLength( 0.0 );
+  return pStep;
+}
+
+inline G4Step* G4ParticleChangeForGamma::UpdateStepForPostStep(G4Step* pStep)
+{
+  if(theStatusChange == fAlive) {
+    G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint();
+    pPostStepPoint->SetKineticEnergy( proposedKinEnergy );
+    pPostStepPoint->SetMomentumDirection( proposedMomentumDirection );
+    pPostStepPoint->AddPolarization( proposedPolarization );
+  }
+  // update weight
+  // this feature is commented out, it should be overwritten in case
+  // if energy loss processes will use biasing
+  // pPostStepPoint->SetWeight( theProposedWeight );
+  pStep->AddTotalEnergyDeposit( theLocalEnergyDeposit );
+  return pStep;
+}
+
+inline void G4ParticleChangeForGamma::AddSecondary(G4DynamicParticle* aParticle)
+{
+  //  create track
+  G4Track* aTrack = new G4Track(aParticle, currentTrack->GetGlobalTime(),
+                                           currentTrack->GetPosition());
+
+  //   Touchable handle is copied to keep the pointer
+  aTrack->SetTouchableHandle(currentTrack->GetTouchableHandle());
+
+  //  add a secondary
+  G4VParticleChange::AddSecondary(aTrack);
+}
+
+#endif
+