Reconstruction/MdcPatRec/MdcTrkRecon/include/MdcTrkRecon/MdcSegInfo.h

Go to the documentation of this file.

//--------------------------------------------------------------------------
// File and Version Information:
//      $Id: MdcSegInfo.h,v 1.2 2009/12/16 09:02:47 zhangy Exp $
//
// Description:
//   Base class for various MdcSegInfo classes, which hold values
//    for a track segment, calculated for some particular application
//
// Environment:
//      Software developed for the BaBar Detector at the SLAC B-Factory.
//
// Authors: Steve Schaffner
//
// Copyright (C)  1996  The Board of Trustees of
//
// History:
//  Migration for BESIII MDC
// The Leland Stanford Junior University.  All Rights Reserved.
//------------------------------------------------------------------------
 
// Interface Dependencies ----------------------------------------------
 
#ifndef MDCSEGINFO_H
#define MDCSEGINFO_H
 
//  End Interface Dependencies -----------------------------------------
 
class MdcSeg;
class MdcTrack;
class MdcSegWorks;
 
// Class definition//
class MdcSegInfo {
public:
  MdcSegInfo(){};
  virtual ~MdcSegInfo();
 
  const double* errmat() const { return _errmat; }
  const double* inverr() const { return _inverr; }
  //  double par1() const                                    {return _par1;}
  //  double par0() const                                    {return _par0;}
  double       par( int i ) const { return ( 0 == i ) ? _par0 : _par1; }
  double       arc() const { return _arc; }
  virtual bool parIsAngle( int i ) const = 0;
  void         plotSegInfo() const;
 
protected:
  double _par0;      // origin: phi0;  stereo: z0
  double _par1;      // origin: curv;  stereo: ct
  double _errmat[3]; // error matrix: sig**2(phi0), sig**2(phi0-curv), (curv)
  double _inverr[3];
  double _arc; // arclength @ which calc. -- for stereo
};
 
#endif