Import Geant4 0.0.0 source tree

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+// This code implementation is the intellectual property of
+// the RD44 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: G4ParticleChangeForMSC.cc,v 2.1 1998/12/02 17:20:25 urban Exp $
+// GEANT4 tag $Name: geant4-00 $
+//
+// 
+// --------------------------------------------------------------
+//	GEANT 4 class implementation file 
+//
+//	For information related to this code contact:
+//	CERN, CN Division, ASD Group
+//	
+//	
+// ------------------------------------------------------------
+//   Implemented for the new scheme                 23 Mar. 1998  H.Kurahige
+// --------------------------------------------------------------
+
+#include "G4ParticleChangeForMSC.hh"
+#include "G4Track.hh"
+#include "G4Step.hh"
+#include "G4TrackFastVector.hh"
+#include "G4DynamicParticle.hh"
+
+G4ParticleChangeForMSC::G4ParticleChangeForMSC():G4VParticleChange()
+{
+#ifdef G4VERBOSE
+  if (verboseLevel>2) {
+    G4cerr << "G4ParticleChangeForMSC::G4ParticleChangeForMSC() " << endl;
+  }
+#endif
+}
+
+G4ParticleChangeForMSC::~G4ParticleChangeForMSC() 
+{
+#ifdef G4VERBOSE
+  if (verboseLevel>2) {
+    G4cerr << "G4ParticleChangeForMSC::~G4ParticleChangeForMSC() " << endl;
+  }
+#endif
+}
+
+G4ParticleChangeForMSC::G4ParticleChangeForMSC(
+             const G4ParticleChangeForMSC &right): G4VParticleChange(right)
+{
+   if (verboseLevel>1) {
+    G4cerr << "G4ParticleChangeForMSC::  copy constructor is called " << endl;
+   }
+   *this = right;
+}
+
+// assignment operator
+G4ParticleChangeForMSC & G4ParticleChangeForMSC::operator=(
+                                   const G4ParticleChangeForMSC &right)
+{
+   if (verboseLevel>1) {
+    G4cerr << "G4ParticleChangeForMSC:: assignment operator is called " << endl;
+   }
+   if (this != &right)
+   {
+      theMomentumChange = right.theMomentumChange;
+      thePositionChange = right.thePositionChange;
+      theTrueStepLength = right.theTrueStepLength;
+   }
+   return *this;
+}
+
+//----------------------------------------------------------------
+// functions for Initialization
+//
+
+void G4ParticleChangeForMSC::Initialize(const G4Track& track)
+{
+  // use base class's method at first
+  G4VParticleChange::Initialize(track);
+
+  // set Energy/Momentum etc. equal to those of the parent particle
+  const G4DynamicParticle*  pParticle = track.GetDynamicParticle();
+  theMomentumChange        = pParticle->GetMomentumDirection();
+
+  // set Position equal to those of the parent track
+  thePositionChange      = track.GetPosition();
+}
+
+//----------------------------------------------------------------
+// methods for updating G4Step 
+//
+
+G4Step* G4ParticleChangeForMSC::UpdateStepForAlongStep(G4Step* pStep)
+{
+  
+  //  Update the G4Step specific attributes 
+  pStep->SetStepLength(theTrueStepLength) ;
+
+  return pStep;
+}
+
+G4Step* G4ParticleChangeForMSC::UpdateStepForPostStep(G4Step* pStep)
+{ 
+  // A physics process always calculates the final state of the particle
+
+  // Take note that the return type of GetMomentumChange is a
+  // pointer to G4ParticleMometum. Also it is a normalized 
+  // momentum vector.
+
+  G4StepPoint* pPreStepPoint  = pStep->GetPreStepPoint(); 
+  G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint(); 
+  G4Track*     aTrack  = pStep->GetTrack();
+ 
+  // update  momentum direction
+  pPostStepPoint->SetMomentumDirection(theMomentumChange);
+
+  // update position 
+  pPostStepPoint->SetPosition( thePositionChange  );
+
+  //  Update the G4Step specific attributes 
+  return UpdateStepInfo(pStep);
+}
+
+G4Step* G4ParticleChangeForMSC::UpdateStepForAtRest(G4Step* pStep)
+{ 
+
+  //  Update the G4Step specific attributes 
+  return UpdateStepInfo(pStep);
+}
+
+//----------------------------------------------------------------
+// methods for printing messages  
+//
+
+void G4ParticleChangeForMSC::DumpInfo() const
+{
+// use base-class DumpInfo
+  G4VParticleChange::DumpInfo();
+
+  G4cout.precision(3);
+  G4cout << "        Position - x (mm)   : " 
+       << setw(20) << thePositionChange.x()/mm
+       << endl; 
+  G4cout << "        Position - y (mm)   : " 
+       << setw(20) << thePositionChange.y()/mm
+       << endl; 
+  G4cout << "        Position - z (mm)   : " 
+       << setw(20) << thePositionChange.z()/mm
+       << endl;
+  G4cout << "        Momentum Direct - x : " 
+       << setw(20) << theMomentumChange.x()
+       << endl;
+  G4cout << "        Momentum Direct - y : " 
+       << setw(20) << theMomentumChange.y()
+       << endl;
+  G4cout << "        Momentum Direct - z : " 
+       << setw(20) << theMomentumChange.z()
+       << endl;
+}
+
+
+
+
+
+
+