Geant4 Cross Reference

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Geant4/parameterisations/channeling/include/G4ChannelingFastSimInterpolation.hh

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 26 // Author:      Alexei Sytov
 27 
 28 #ifndef G4ChannelingFastSimInterpolation_h
 29 #define G4ChannelingFastSimInterpolation_h
 30 
 31 #include "G4PhysicsVector.hh"
 32 #include "G4Physics2DVector.hh"
 33 #include "G4ThreeVector.hh"
 34 #include "G4PhysicsLinearVector.hh"
 35 
 36 /** \file G4ChannelingFastSimInterpolation.hh
 37 * \brief Definition of the G4ChannelingFastSimInterpolation class
 38 * The class includes spline interpolation coefficients for the important functions
 39 * needed in Channeling FastSimulation model, i.e. electric fields, nuclear and
 40 * electron densities and minimum energy of ionization. All the functions have
 41 * transverse coordinates as arguments (x for crystal planes, x and y for crystal axes).
 42 * All the functions are calculated in the co-rotating reference system (along crystal
 43 * planes/axes).
 44 */
 45 
 46 class G4ChannelingFastSimInterpolation {
 47 
 48 public:
 49     G4ChannelingFastSimInterpolation(G4double dx0,
 50                                    G4double dy0,
 51                                    G4int nPointsx0,
 52                                    G4int nPointsy0,
 53                                    G4int iModel0);
 54     ~G4ChannelingFastSimInterpolation() = default;
 55 
 56     ///Get Spline Function
 57     G4double GetIF(G4double xx, G4double yy);
 58 
 59     ///Set spline coefficients
 60     void SetCoefficients1D(G4double AI0,
 61                            G4double BI0,
 62                            G4double CI0,
 63                            G4double DI0,
 64                            G4int i);
 65     void SetCoefficients2D(G4double AI3D0,
 66                            G4double BI3D0,
 67                            G4double CI3D0,
 68                            G4int i,
 69                            G4int j,
 70                            G4int k);
 71 
 72 private:
 73     G4double Spline1D(G4double xx);
 74     G4double Spline2D(G4double xx, G4double yy);// cubic spline of 2-variable function
 75 
 76     G4double fDx=0., fDy=0.; //channel width and height
 77     G4double fStepi=0., fStepj=0.; //interpolation steps in x and y, respectively
 78     G4double fStepi2=0.; //=fStepi*fStepi
 79     G4int nPointsx=0, nPointsy=0; //number of interpolation nodes in x and y, respectively
 80 
 81     std::vector <G4double> fAI;
 82     std::vector <G4double> fBI;
 83     std::vector <G4double> fCI;
 84     std::vector <G4double> fDI;
 85 
 86     std::vector<std::vector<G4double>> fAI3D;
 87     std::vector<std::vector<G4double>> fBI3D;
 88     std::vector<std::vector<G4double>> fCI3D;
 89     std::vector<std::vector<G4double>> fAI3D3;
 90     std::vector<std::vector<G4double>> fBI3D3;
 91     std::vector<std::vector<G4double>> fCI3D3;
 92 
 93     G4int iModel=1;
 94 
 95 };
 96 
 97 #endif
 98