Geant4_10
G4NeutronHPArbitaryTab.hh
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28 #ifndef G4NeutronHPArbitaryTab_h
29 #define G4NeutronHPArbitaryTab_h 1
30 
31 #include <fstream>
33 
34 #include "globals.hh"
35 #include "G4ios.hh"
36 #include "Randomize.hh"
37 #include "G4NeutronHPVector.hh"
38 #include "G4VNeutronHPEDis.hh"
40 
41 // we will need a List of these .... one per term.
42 
44 {
45  public:
47  {
48  theDistFunc = 0;
49  }
51  {
52  if(theDistFunc!=0) delete [] theDistFunc;
53  }
54 
55  inline void Init(std::istream & theData)
56  {
57  G4int i;
58  theFractionalProb.Init(theData, CLHEP::eV);
59  theData >> nDistFunc; // = number of incoming n energy points
60  theDistFunc = new G4NeutronHPVector [nDistFunc];
61  theManager.Init(theData);
62  G4double currentEnergy;
63  for(i=0; i<nDistFunc; i++)
64  {
65  theData >> currentEnergy;
66  theDistFunc[i].SetLabel(currentEnergy*CLHEP::eV);
67  theDistFunc[i].Init(theData, CLHEP::eV);
68  //************************************************************************
69  //EMendoza:
70  //ThinOut() assumes that the data is linear-linear, what is false:
71  //theDistFunc[i].ThinOut(0.02); // @@@ optimization to be finished.
72  //************************************************************************
73  }
74 
75  //************************************************************************
76  //EMendoza:
77  //Here we calculate the thresholds for the 2D sampling:
78  for(i=0; i<nDistFunc; i++){
79  G4int np=theDistFunc[i].GetVectorLength();
80  theLowThreshold[i]=theDistFunc[i].GetEnergy(0);
81  theHighThreshold[i]=theDistFunc[i].GetEnergy(np-1);
82  for(G4int j=0;j<np-1;j++){
83  if(theDistFunc[i].GetXsec(j+1)>1.e-20){
84  theLowThreshold[i]=theDistFunc[i].GetEnergy(j);
85  break;
86  }
87  }
88  for(G4int j=1;j<np;j++){
89  if(theDistFunc[i].GetXsec(j-1)>1.e-20){
90  theHighThreshold[i]=theDistFunc[i].GetEnergy(j);
91  }
92  }
93  }
94  //************************************************************************
95  }
96 
98  {
99  return theFractionalProb.GetY(anEnergy);
100  }
101 
102  G4double Sample(G4double anEnergy) ;
103 
104  private:
105 
106  G4NeutronHPVector theFractionalProb;
107  G4int nDistFunc;
108  G4InterpolationManager theManager; // knows the interpolation between stores
109  G4NeutronHPVector * theDistFunc; // one per incoming energy
110  G4NeutronHPVector theBuffer;
111  //************************************************************************
112  //EMendoza:
113  G4double theLowThreshold[1000];
114  G4double theHighThreshold[1000];
115  //************************************************************************
116 
117 };
118 
119 #endif
G4double GetEnergy(G4int i) const
void SetLabel(G4double aLabel)
G4double GetY(G4double x)
G4int GetVectorLength() const
void Init(std::istream &theData)
void Init(G4int aScheme, G4int aRange)
void Init(std::istream &aDataFile, G4int total, G4double ux=1., G4double uy=1.)
int G4int
Definition: G4Types.hh:78
double G4double
Definition: G4Types.hh:76
G4double Sample(G4double anEnergy)
G4double GetFractionalProbability(G4double anEnergy)