Reconstruction/MdcPatRec/TrkBase/include/TrkBase/NeutParams.h

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//  Justin Albert and Valery Miftahov 10/27/97
 
#ifndef NEUTPARAMS_H
#define NEUTPARAMS_H
 
#include <iostream>
#include <math.h>
#include <stdio.h>
 
#include "CLHEP/Matrix/Matrix.h"
#include "CLHEP/Matrix/SymMatrix.h"
#include "CLHEP/Matrix/Vector.h"
#include "TrkBase/TrkParams.h"
 
using CLHEP::Hep3Vector;
using CLHEP::HepMatrix;
using CLHEP::HepSymMatrix;
 
class NeutParams : public TrkParams {
 
  friend class NeutTraj;
 
public:
  //  Constructors and destructor
  //
  NeutParams( const HepVector&, const HepSymMatrix& );
  NeutParams( double, double, double, double, double, double );
  NeutParams( const NeutParams& old );
  ~NeutParams();
 
  //  Define the parameter meaning and order by an enum
  enum { _d0, _phi0, _p, _z0, _tanDip, _s0, _nneutprm = 6 };
 
  //  access
  //
  double& d0() { return parameter()[_d0]; }
  double& phi0() { return parameter()[_phi0]; }
  double& p() { return parameter()[_p]; }
  double& z0() { return parameter()[_z0]; }
  double& tanDip() { return parameter()[_tanDip]; }
  double& s0() { return parameter()[_s0]; }
 
  double d0() const { return parameter()[_d0]; }
  double phi0() const { return parameter()[_phi0]; }
  double p() const { return parameter()[_p]; }
  double z0() const { return parameter()[_z0]; }
  double tanDip() const { return parameter()[_tanDip]; }
  double s0() const { return parameter()[_s0]; }
 
  double sinPhi0() const;
  double cosPhi0() const;
  double arcRatio() const; // = fltLen / 2-d arclen
private:
};
#endif