BesPointErr Class Reference

#include <BesPointErr.h>

List of all members.

Public Types
	Rho = 0
	Theta = 1
	Phi = 2
	NUM_PCOORDINATES = 3
	C_Rho = 0
	C_Zeta = 1
	C_Phi = 2
	NUM_CCOORDINATES = 3
enum	PolarCoordinateIndex { Rho = 0, Theta = 1, Phi = 2, NUM_PCOORDINATES = 3 }
enum	CylindricalCoordinateIndex { C_Rho = 0, C_Zeta = 1, C_Phi = 2, NUM_CCOORDINATES = 3 }
Public Member Functions
	BesPointErr ()
	BesPointErr (const HepPoint3D &p)
	BesPointErr (const HepPoint3D &p, const BesError &covMat)
	BesPointErr (const BesPointErr &v)
double	determineChisq (const HepPoint3D &diffPoint) const
BesError	covRTPMatrix () const
BesError	covRZPMatrix () const
const BesError &	covMatrix () const
void	setCovMatrix (const BesError &v)
Private Attributes
BesError	_covMatrix

---

Detailed Description

Definition at line 44 of file BesPointErr.h.

---

Member Enumeration Documentation

enum BesPointErr::CylindricalCoordinateIndex

Enumerator:

C_Rho
C_Zeta
C_Phi
NUM_CCOORDINATES

Definition at line 53 of file BesPointErr.h.

                                    {   
      C_Rho = 0, 
      C_Zeta = 1, 
      C_Phi = 2,
      NUM_CCOORDINATES = 3
    };

enum BesPointErr::PolarCoordinateIndex

Enumerator:

Rho
Theta
Phi
NUM_PCOORDINATES

Definition at line 47 of file BesPointErr.h.

                              {   
      Rho = 0, 
      Theta = 1, 
      Phi = 2,
      NUM_PCOORDINATES = 3
    };

---

Constructor & Destructor Documentation

BesPointErr::BesPointErr

(

)

[inline]

Definition at line 59 of file BesPointErr.h.

: HepPoint3D(), _covMatrix(3)           {}

BesPointErr::BesPointErr

(

const HepPoint3D &

p

)

[inline]

Definition at line 60 of file BesPointErr.h.

                                     : HepPoint3D(p),
                                       _covMatrix(3)                                            {}

BesPointErr::BesPointErr	(	const HepPoint3D &	p,
		const BesError &	covMat
	)			[inline]

Definition at line 62 of file BesPointErr.h.

References _covMatrix.

                                                             : HepPoint3D(p),
                                                               _covMatrix(3)                                            { _covMatrix=covMat; }

BesPointErr::BesPointErr

(

const BesPointErr &

v

)

[inline]

Definition at line 66 of file BesPointErr.h.

References v.

: HepPoint3D(),_covMatrix(3)    {*this = v;}

---

Member Function Documentation

const BesError& BesPointErr::covMatrix

(

)

const [inline]

Definition at line 84 of file BesPointErr.h.

References _covMatrix.

Referenced by covRTPMatrix(), covRZPMatrix(), and operator<<().

{ return _covMatrix; }

BesError BesPointErr::covRTPMatrix

(

)

const

Definition at line 83 of file BesPointErr.cxx.

References covMatrix(), DifArray::jacobian(), NUM_PCOORDINATES, Phi, Rho, BesError::similarity(), Theta, and x.

                                        {
  // protect against 0's
  double xv = x()==0 ?  FLT_MIN : x();
  double yv = y()==0 ?  FLT_MIN : y();
  double zv = z()==0 ?  FLT_MIN : z();
  DifNumber xDF(xv,X+1,3), yDF(yv,Y+1,3), zDF(zv,Z+1,3);
  DifArray pars(3,NUM_PCOORDINATES);
  pars[Rho]   =  sqrt(xDF*xDF + yDF*yDF + zDF*zDF);
  pars[Phi]   = atan2(yDF,xDF);
  pars[Theta] = acos(zDF/pars[Rho]);
  return covMatrix().similarity(pars.jacobian());
}

BesError BesPointErr::covRZPMatrix

(

)

const

Definition at line 96 of file BesPointErr.cxx.

References C_Phi, C_Rho, C_Zeta, covMatrix(), DifArray::jacobian(), NUM_CCOORDINATES, BesError::similarity(), and x.

                                        {
  // protect against 0's
  double xv = x()==0 ?  FLT_MIN : x();
  double yv = y()==0 ?  FLT_MIN : y();
  double zv = z()==0 ?  FLT_MIN : z();
  DifNumber xDF(xv,X+1,3), yDF(yv,Y+1,3), zDF(zv,Z+1,3);
  DifArray pars(3,NUM_CCOORDINATES);
  pars[C_Rho]   =  sqrt(xDF*xDF + yDF*yDF );
  pars[C_Phi]   = atan2(yDF,xDF);
  pars[C_Zeta] =  zDF;
  return covMatrix().similarity(pars.jacobian());
}

double BesPointErr::determineChisq

(

const HepPoint3D &

diffPoint

)

const [inline]

Definition at line 68 of file BesPointErr.h.

References _covMatrix, BesError::determineChisq(), subSeperate::temp, and x.

    {
      HepVector temp(3);
      temp[0] = diffPoint.x()-this->x();
      temp[1] = diffPoint.y()-this->y();
      temp[2] = diffPoint.z()-this->z();
      return _covMatrix.determineChisq(temp);
    }

void BesPointErr::setCovMatrix

(

const BesError &

v

)

[inline]

Definition at line 85 of file BesPointErr.h.

References _covMatrix, and v.

Referenced by operator>>().

{ _covMatrix = v; }

---

Member Data Documentation

BesError BesPointErr::_covMatrix [private]

Definition at line 91 of file BesPointErr.h.

Referenced by BesPointErr(), covMatrix(), determineChisq(), and setCovMatrix().

---