Gabriele Cosmo
98 lines
4.1 KiB
C++
98 lines
4.1 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// Author: Alexei Sytov
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#ifndef G4ChannelingFastSimInterpolation_h
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#define G4ChannelingFastSimInterpolation_h
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#include "G4PhysicsVector.hh"
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#include "G4Physics2DVector.hh"
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#include "G4ThreeVector.hh"
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#include "G4PhysicsLinearVector.hh"
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/** \file G4ChannelingFastSimInterpolation.hh
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* \brief Definition of the G4ChannelingFastSimInterpolation class
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* The class includes spline interpolation coefficients for the important functions
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* needed in Channeling FastSimulation model, i.e. electric fields, nuclear and
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* electron densities and minimum energy of ionization. All the functions have
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* transverse coordinates as arguments (x for crystal planes, x and y for crystal axes).
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* All the functions are calculated in the co-rotating reference system (along crystal
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* planes/axes).
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*/
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class G4ChannelingFastSimInterpolation {
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public:
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G4ChannelingFastSimInterpolation(G4double dx0,
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G4double dy0,
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G4int nPointsx0,
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G4int nPointsy0,
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G4int iModel0);
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~G4ChannelingFastSimInterpolation() = default;
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///Get Spline Function
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G4double GetIF(G4double xx, G4double yy);
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///Set spline coefficients
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void SetCoefficients1D(G4double AI0,
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G4double BI0,
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G4double CI0,
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G4double DI0,
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G4int i);
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void SetCoefficients2D(G4double AI3D0,
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G4double BI3D0,
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G4double CI3D0,
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G4int i,
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G4int j,
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G4int k);
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private:
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G4double Spline1D(G4double xx);
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G4double Spline2D(G4double xx, G4double yy);// cubic spline of 2-variable function
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G4double fDx=0., fDy=0.; //channel width and height
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G4double fStepi=0., fStepj=0.; //interpolation steps in x and y, respectively
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G4double fStepi2=0.; //=fStepi*fStepi
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G4int nPointsx=0, nPointsy=0; //number of interpolation nodes in x and y, respectively
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std::vector <G4double> fAI;
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std::vector <G4double> fBI;
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std::vector <G4double> fCI;
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std::vector <G4double> fDI;
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std::vector<std::vector<G4double>> fAI3D;
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std::vector<std::vector<G4double>> fBI3D;
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std::vector<std::vector<G4double>> fCI3D;
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std::vector<std::vector<G4double>> fAI3D3;
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std::vector<std::vector<G4double>> fBI3D3;
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std::vector<std::vector<G4double>> fCI3D3;
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G4int iModel=1;
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};
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#endif
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