MdcSagTraj Class Reference

#include <MdcSagTraj.h>

Inheritance diagram for MdcSagTraj:

Public Member Functions
	MdcSagTraj (const double sag, const HepPoint3D &point1, const HepPoint3D &point2)
	MdcSagTraj (const MdcSagTraj &traj)
MdcSagTraj *	clone () const
virtual	~MdcSagTraj ()
MdcSagTraj &	operator= (const MdcSagTraj &)
double	sag (void) const
HepPoint3D	position (double) const
Hep3Vector	direction (double) const
double	curvature (double f=0.) const
Hep3Vector	delDirect (double) const
const Hep3Vector &	rawDirection (void) const
void	getInfo (double fltLen, HepPoint3D &, Hep3Vector &direction) const
void	getInfo (double fltLen, HepPoint3D &, Hep3Vector &direction, Hep3Vector &delDirect) const
virtual double	distTo1stError (double s, double tol, int pathDir) const
virtual double	distTo2ndError (double s, double tol, int pathDir) const
double	deltaY (double fltLen) const
void	accept (TrkGeomTrajVisitor &visitor) const
Public Member Functions inherited from TrkGeomTraj
	TrkGeomTraj (double lowlim, double hilim)
virtual	~TrkGeomTraj ()
Public Member Functions inherited from Trajectory
	Trajectory (double lowlim, double hilim)
virtual	~Trajectory ()
double	distTo0thError (double s, double tol, int pathDir) const
bool	validFlightDistance (double f, double tolerance=0.0) const
virtual void	setFlightRange (double newrange[2])
double	lowRange () const
double	hiRange () const
double	range () const
virtual void	print (std::ostream &os) const
virtual void	printAll (std::ostream &os) const

Additional Inherited Members
Protected Member Functions inherited from Trajectory
Trajectory &	operator= (const Trajectory &)
Protected Attributes inherited from Trajectory
double	flightrange [2]

Detailed Description

Definition at line 65 of file MdcSagTraj.h.

Constructor & Destructor Documentation

MdcSagTraj() [1/2]

MdcSagTraj::MdcSagTraj	(	const double	sag,
		const HepPoint3D &	point1,
		const HepPoint3D &	point2 )

Definition at line 57 of file MdcSagTraj.cxx.

  : TrkGeomTraj(0.0,start.distance(stop)), _sag(sag), _start(start), _stop(stop)
{
  //_direction = stop - start;
  _direction = ((CLHEP::Hep3Vector) stop) - ((CLHEP::Hep3Vector) start);
  _length = _direction.mag();
  assert( _length != 0 );
 
  _direction.setMag(1.0);
  _a = _sag*4./(_length*_length);
  _b = -_a*_length;
 
}

Referenced by clone().

MdcSagTraj() [2/2]

MdcSagTraj::MdcSagTraj

(

const MdcSagTraj &

traj

)

Definition at line 72 of file MdcSagTraj.cxx.

  : TrkGeomTraj(0.0,other._start.distance(other._stop)), 
    _sag(other._sag), _a(other._a), _b(other._b), _length(other._length),
    _start(other._start), _stop(other._stop), 
    _direction(other._direction)
{}

~MdcSagTraj()

MdcSagTraj::~MdcSagTraj ( )

virtual

Definition at line 79 of file MdcSagTraj.cxx.

{;}

Member Function Documentation

accept()

void MdcSagTraj::accept ( TrkGeomTrajVisitor & visitor ) const

virtual

Reimplemented from TrkGeomTraj.

Definition at line 212 of file MdcSagTraj.cxx.

{
  std::cout<<"ErrMsg(error)"<<"accept visitor NOT implemented yet"<<std::endl;
}

clone()

MdcSagTraj * MdcSagTraj::clone ( ) const

virtual

Implements TrkGeomTraj.

Definition at line 84 of file MdcSagTraj.cxx.

{
  return new MdcSagTraj(*this);
}

curvature()

double MdcSagTraj::curvature ( double f = 0. ) const

virtual

Implements Trajectory.

Definition at line 190 of file MdcSagTraj.cxx.

{
  return _sag;
}

Referenced by MdcSWire::print().

delDirect()

Hep3Vector MdcSagTraj::delDirect ( double ) const

virtual

Implements Trajectory.

Definition at line 146 of file MdcSagTraj.cxx.

{
  return Hep3Vector(0., 2.*_a, 0.);
}

deltaY()

double MdcSagTraj::deltaY ( double fltLen ) const

inline

Definition at line 94 of file MdcSagTraj.h.

{ return (_a*fltLen+_b)*fltLen; }

Referenced by getInfo().

direction()

Hep3Vector MdcSagTraj::direction ( double flightlen ) const

virtual

Implements Trajectory.

Definition at line 132 of file MdcSagTraj.cxx.

                                              {
  if ( flightlen <= 0. ) return _direction;
//    Hep3Vector dir =  _direction*flightlen + delDirect(flightlen);
  static Hep3Vector tmpdir;
  tmpdir =  _direction*flightlen;
//   register double newy = tmpdir.y() + 2.*_a*flightlen+_b;
//   tmpdir.setY(newy);
  tmpdir.setY(tmpdir.y() + 2.*_a*flightlen+_b);
//   tmpdir += delDirect(flightlen);
  tmpdir.setMag(1.0);
  return tmpdir;
}

Referenced by MdcSWire::print().

distTo1stError()

double MdcSagTraj::distTo1stError ( double s, double tol, int pathDir ) const

virtual

Implements Trajectory.

Definition at line 196 of file MdcSagTraj.cxx.

{
  double dtmp = pathDir*2.*_a*flightlen+_b;
 
  return dtmp==0. ? 9999.e4 : fabs(tol/dtmp);
}

distTo2ndError()

double MdcSagTraj::distTo2ndError ( double s, double tol, int pathDir ) const

virtual

Implements Trajectory.

Definition at line 204 of file MdcSagTraj.cxx.

{ 
  return 999.e4 ;
  //return _a==0. ? 999.e4 : tol/(2.*_a); 
}

getInfo() [1/2]

void MdcSagTraj::getInfo ( double fltLen, HepPoint3D & pos, Hep3Vector & direction ) const

virtual

Implements Trajectory.

Definition at line 152 of file MdcSagTraj.cxx.

{
// std::cout<<"Dyz*"<<"MdcSagTraj01 "<<std::endl;//yzhang DEBUG
  // Written using +=, etc to avoid temporaries
  pos = _start;
//CHANGE   pos += _direction*flightlen;
  pos += (HepPoint3D) _direction*flightlen;
  
  dir = _direction;
  if ( flightlen > 0. ) {
    pos.setY(pos.y() + deltaY(flightlen));
    dir.setY(dir.y() + 2.*_a*flightlen+_b);
    dir.setMag(1.0);
  }
}

getInfo() [2/2]

void MdcSagTraj::getInfo ( double fltLen, HepPoint3D & pos, Hep3Vector & direction, Hep3Vector & delDirect ) const

virtual

Implements Trajectory.

Definition at line 169 of file MdcSagTraj.cxx.

{
//   std::cout<<"Dyz*"<<"MdcSagTraj011 "<<std::endl;//yzhang DEBUG
     
  pos = _start;
//CHANGE   pos += _direction*flightlen ;
  pos += (HepPoint3D) _direction*flightlen ;
  
  pos.setY( pos.y() + (_a*flightlen+_b)*flightlen) ;
 
  dir = _direction;
  dir.setY( dir.y() + 2*_a*flightlen+_b) ;
  // Note: `dir' is on purpose not normalized (WDH, Jan 2003)
 
  delDir.setX(0.);
  delDir.setY(2.*_a);
  delDir.setZ(0.);
}

operator=()

MdcSagTraj & MdcSagTraj::operator=

(

const MdcSagTraj &

other

)

Definition at line 94 of file MdcSagTraj.cxx.

{
  if(&other != this){
    for(int iend=0;iend<2;iend++)
      flightrange[iend] = other.flightrange[iend];
    _start = other._start;
    _stop = other._stop;
    _sag = other._sag;
    _a = other._a;
    _b = other._b;
    _length = other._length;
    _direction = other._direction;
  }
  return *this;
}

position()

HepPoint3D MdcSagTraj::position ( double flightlen ) const

virtual

Implements Trajectory.

Definition at line 121 of file MdcSagTraj.cxx.

{
  static HepPoint3D tmppos;
  tmppos = _start;
//CHANGE   tmppos += _direction*flightlen;
  tmppos += (HepPoint3D) _direction*flightlen;//yzhang TEMP 
  tmppos.setY(tmppos.y()+(_a*flightlen+_b)*flightlen);
  return tmppos;
}

Referenced by main(), and MdcSWire::print().

rawDirection()

const Hep3Vector & MdcSagTraj::rawDirection ( void ) const

inline

Definition at line 87 of file MdcSagTraj.h.

{ return _direction; }

Referenced by main(), MdcSWire::print(), and MdcSWire::zAxis().

sag()

double MdcSagTraj::sag ( void ) const

inline

Definition at line 80 of file MdcSagTraj.h.

{ return _sag; }

Referenced by MdcUtilitySvc::docaPatPar(), main(), and MdcSWire::print().

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The documentation for this class was generated from the following files:

• MdcSagTraj.h
• MdcSagTraj.cxx