CircleFitter.h

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
 
//-----------------------------------------------------------------------------
// Description : A class to fit a TTrackBase object to a circle.
//-----------------------------------------------------------------------------
 
#ifndef TRGCDCCIRCLEFITTER_FLAG_
#define TRGCDCCIRCLEFITTER_FLAG_
 
#include "trg/cdc/Fitter.h"
 
#include "CLHEP/Geometry/Point3D.h"
 
#ifdef TRGCDC_SHORT_NAMES
#define TCCFitter TRGCDCCircleFitter
#endif
 
namespace Belle2 {
  class TRGCDCCircleFitter : public TRGCDCFitter {
 
  public:
    explicit TRGCDCCircleFitter(const std::string& name);
 
    virtual ~TRGCDCCircleFitter();
 
  public:// Selectors
    void dump(const std::string& message = std::string(""),
              const std::string& prefix = std::string("")) const;
 
  public:// Modifiers
    virtual int fit(TRGCDCTrackBase&) const override;
 
  private:
    mutable double _charge;
    mutable double _radius;
    mutable HepGeom::Point3D<double> _center;
  };
 
//-----------------------------------------------------------------------------
 
 
} // namespace Belle2
 
#endif