CbmKFFieldMath.h

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/* Copyright (C) 2006-2009 GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
   SPDX-License-Identifier: GPL-3.0-only
   Authors: Sergey Gorbunov, Denis Bertini [committer] */
 
#ifndef CBMKFFIELDMATH_H
#define CBMKFFIELDMATH_H 1
 
#include "TObject.h"
 
class FairField;
class FairTrackParam;
 
class CbmKFFieldMath : public TObject {
 public:
  CbmKFFieldMath() {}
  ~CbmKFFieldMath() {}
 
  static void ExtrapolateLine(const Double_t T_in[], const Double_t C_in[], Double_t T_out[], Double_t C_out[],
                              Double_t z_out);
 
  static Int_t ExtrapolateRK4(const Double_t T_in[], const Double_t C_in[], Double_t T_out[], Double_t C_out[],
                              Double_t z_out, Double_t qp0, FairField* MF);
  /*
  static void ExtrapolateAnalytic( const Double_t T_in[], const Double_t C_in[],
                                   Double_t T_out[], Double_t C_out[],
                                   Double_t z_out, Double_t qp0, CbmMagField *MF, 
                                   Int_t order=3 );
  
  static void ExtrapolateACentral( const Double_t T_in[], const Double_t C_in[],
                                   Double_t T_out[], Double_t C_out[],
                                   Double_t z_out, Double_t qp0, CbmMagField *MF);
  */
  static Int_t ExtrapolateALight(const Double_t T_in[], const Double_t C_in[], Double_t T_out[], Double_t C_out[],
                                 Double_t z_out, Double_t qp0, FairField* MF);
  /*
  static void IntegrateField( 
                             CbmMagField *MF,      
                             Double_t r0[], Double_t r1[], Double_t r2[],
                             Double_t si  [3]      =0, Double_t Si  [3]      =0,
                             Double_t sii [3][3]   =0, Double_t Sii [3][3]   =0, 
                             Double_t siii[3][3][3]=0, Double_t Siii[3][3][3]=0
                             );
  
  static void GetCoefficients( 
                              Double_t tx, Double_t ty,
                              Double_t Xi  [3][3]      =0, Double_t Yi  [3][3]      =0,
                              Double_t Xii [3][3][3]   =0, Double_t Yii [3][3][3]   =0,
                              Double_t Xiii[3][3][3][3]=0, Double_t Yiii[3][3][3][3]=0
                              );
  */
  ClassDef(CbmKFFieldMath, 1)
};
 
#endif /* ! CBMKFFIELDMATH_H */