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G4VITDiscreteProcess.cc
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25 //
26 //
27 //
28 //
29 // --------------------------------------------------------------
30 // GEANT 4 class implementation file
31 //
32 // History: first implementation, based on object model of
33 // 2nd December 1995, G.Cosmo
34 // --------------------------------------------------------------
35 // New Physics scheme 8 Jan. 1997 H.Kurahige
36 // ------------------------------------------------------------
37 
38 #include "G4VITDiscreteProcess.hh"
39 #include "G4SystemOfUnits.hh"
40 
41 #include "G4Step.hh"
42 #include "G4Track.hh"
43 #include "G4MaterialTable.hh"
44 #include "G4VParticleChange.hh"
45 
47  G4VITProcess("No Name Discrete Process")
48 {
49  G4Exception("G4VDiscreteProcess::G4VDiscreteProcess()",
50  "ProcMan102",
52  "Default constructor is called");
53 }
54 
55 //------------------------------------------------------------------------------
56 
58  G4ProcessType aType) :
59  G4VITProcess(aName, aType)
60 {
61  enableAtRestDoIt = false;
62  enableAlongStepDoIt = false;
63 }
64 
65 //------------------------------------------------------------------------------
66 
68 {
69 }
70 
71 //------------------------------------------------------------------------------
72 
74  G4VITProcess(right)
75 {
76 }
77 
78 //------------------------------------------------------------------------------
79 
83  G4double previousStepSize,
85 {
86  if((previousStepSize < 0.0)
87  || (fpState->theNumberOfInteractionLengthLeft <= 0.0))
88  {
89  // beginning of tracking (or just after DoIt of this process)
91  } else if(previousStepSize > 0.0)
92  {
93  // subtract NumberOfInteractionLengthLeft
94  SubtractNumberOfInteractionLengthLeft(previousStepSize);
95  } else
96  {
97  // zero step
98  // DO NOTHING
99  }
100 
101  // condition is set to "Not Forced"
102  *condition = NotForced;
103 
104  // get mean free path
105  fpState->currentInteractionLength = GetMeanFreePath(track,
106  previousStepSize,
107  condition);
108 
109  G4double value;
110  if(fpState->currentInteractionLength < DBL_MAX)
111  {
112  value = fpState->theNumberOfInteractionLengthLeft
113  * fpState->currentInteractionLength;
114  } else
115  {
116  value = DBL_MAX;
117  }
118 #ifdef G4VERBOSE
119  if(verboseLevel > 1)
120  {
121  G4cout << "G4VDiscreteProcess::PostStepGetPhysicalInteractionLength ";
122  G4cout << "[ " << GetProcessName() << "]" << G4endl;
123  track.GetDynamicParticle()->DumpInfo();
124  G4cout << " in Material " << track.GetMaterial()->GetName() << G4endl;
125  G4cout << "InteractionLength= " << value / cm << "[cm] " << G4endl;
126  }
127 #endif
128  return value;
129 }
130 
131 //------------------------------------------------------------------------------
132 
134  const G4Step&)
135 {
136 // clear NumberOfInteractionLengthLeft
138 
139  return pParticleChange;
140 }