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G4PenelopeSamplingData.hh
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25 //
26 //
27 // Author: Luciano Pandola
28 //
29 // History:
30 // -----------
31 // 09 Dec 2009 L. Pandola 1st implementation.
32 //
33 // -------------------------------------------------------------------
34 //
35 // Class description:
36 // This is a container of data that are used for sampling algorithm
37 // of Penelope08 Rayleigh scattering
38 // -------------------------------------------------------------------
39 
40 #ifndef G4PENELOPESAMPLINGDATA_HH
41 #define G4PENELOPESAMPLINGDATA_HH 1
42 
43 #include "globals.hh"
44 #include "G4DataVector.hh"
45 //
46 //This is a container of data that are used for sampling algoritm
47 //
49 {
50 
51 public:
52  G4PenelopeSamplingData(G4int npoints=150);
54 
55  void AddPoint(G4double x0,G4double pac0,G4double a0,G4double b0,size_t ITTL0,
56  size_t ITTU0);
57  size_t GetNumberOfStoredPoints();
58  void Clear();
59  void DumpTable();
60 
61  G4double GetX(size_t index);
62  G4double GetPAC(size_t index);
63  G4double GetA(size_t index);
64  G4double GetB(size_t index);
65 
67 
68 private:
71 
72  //G4double xlow;
73  //G4double xhigh;
74 
75  G4DataVector* x; //grid points, in increasing order
76  G4DataVector* pac; //value of the cumulative pdf at x_i
77  G4DataVector* a; // rational inverse cumulative inverse distribution parameters
79 
80  std::vector<size_t> *ITTL; //largest j for which pac(j) < (i-1)/(np-1)
81  std::vector<size_t> *ITTU; //smallest k for which pac(k) > i/(np-1)
82 
83  G4int np; //number of grid points
84 
85 
86 
87 };
88 
89 #endif
90