CbmKFFieldMath.h

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/** Collection of mathematical routines for track extrapolation in magnetic field
 *
 * @author  S.Gorbunov
 * @version 0.0
 * @since   02.12.05
 *
 * Description will be here
 *
 */
 
#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 */