TrackMomentumConstraint Class Reference

#include <TrackMomentumConstraint.h>

Inheritance diagram for TrackMomentumConstraint:

[legend]Collaboration diagram for TrackMomentumConstraint:

[legend]List of all members.

Public Member Functions
	TrackMomentumConstraint (double pxfact_, double pyfact_, double pzfact_, double efact_=0, double value_=0)
	TrackMomentumConstraint (int axis, double value_=0)
virtual	~TrackMomentumConstraint ()
virtual double	getValue () const
	Returns the value of the constraint.
virtual void	getDerivatives (int idim, double der[]) const
virtual void	add1stDerivativesToMatrix (int idim, double *M) const
	Adds first order derivatives to global covariance matrix M.
virtual void	add2ndDerivativesToMatrix (int idim, double *M, double lambda) const
	Adds second order derivatives to global covariance matrix M.
virtual void	addToGlobalDerMatrix (double lambda, int idim, double *M) const
virtual void	invalidateCache () const
	Invalidates any cached values for the next event.
Protected Member Functions
void	updateCache () const
Protected Attributes
FourVector	factor
double	value
bool	cachevalid
int	nparams

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Constructor & Destructor Documentation

TrackMomentumConstraint::TrackMomentumConstraint (  double  pxfact_, double  pyfact_, double  pzfact_, double  efact_ = 0, double  value_ = 0 )

Definition at line 18 of file TrackMomentumConstraint.C.

TrackMomentumConstraint::TrackMomentumConstraint (  int  axis, double  value_ = 0 )

Definition at line 25 of file TrackMomentumConstraint.C. References factor, and FourVector::setValues().

TrackMomentumConstraint::~TrackMomentumConstraint (   )  [virtual]

Definition at line 42 of file TrackMomentumConstraint.C.

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Member Function Documentation

void TrackMomentumConstraint::add1stDerivativesToMatrix (  int  idim, double *  M )  const [virtual]

Adds first order derivatives to global covariance matrix M. Reimplemented from TrackConstraint. Definition at line 76 of file TrackMomentumConstraint.C. References TrackConstraint::ConstFitObjectIterator, TrackConstraint::fitobjects, TrackConstraint::getGlobalNum(), TrackFitObject::getGlobalParNum(), TrackFitObject::getNPar(), and TrackFitObject::isParamFixed().

void TrackMomentumConstraint::add2ndDerivativesToMatrix (  int  idim, double *  M, double  lambda )  const [virtual]

Adds second order derivatives to global covariance matrix M. Reimplemented from TrackConstraint. Definition at line 100 of file TrackMomentumConstraint.C.

void TrackMomentumConstraint::addToGlobalDerMatrix (  double  lambda, int  idim, double *  M )  const [virtual]

Definition at line 105 of file TrackMomentumConstraint.C. References cachevalid, nparams, and updateCache().

void TrackMomentumConstraint::getDerivatives (  int  idim, double  der[] )  const [virtual]

Get first order derivatives. Call this with a predefined array "der" with the necessary number of entries! Implements TrackConstraint. Definition at line 63 of file TrackMomentumConstraint.C. References factor, TrackConstraint::fitobjects, TrackConstraint::flags, and TrackConstraint::sign.

double TrackMomentumConstraint::getValue (   )  const [virtual]

Returns the value of the constraint. Implements TrackConstraint. Definition at line 45 of file TrackMomentumConstraint.C. References factor, TrackConstraint::fitobjects, TrackConstraint::flags, TrackConstraint::sign, and value.

void TrackMomentumConstraint::invalidateCache (   )  const [virtual]

Invalidates any cached values for the next event. Reimplemented from TrackConstraint. Definition at line 150 of file TrackMomentumConstraint.C. References cachevalid.

void TrackMomentumConstraint::updateCache (   )  const [protected]

Definition at line 154 of file TrackMomentumConstraint.C. References cachevalid, TrackConstraint::fitobjects, and nparams. Referenced by addToGlobalDerMatrix().

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Member Data Documentation

bool TrackMomentumConstraint::cachevalid [mutable, protected]

Definition at line 44 of file TrackMomentumConstraint.h. Referenced by addToGlobalDerMatrix(), invalidateCache(), and updateCache().

FourVector TrackMomentumConstraint::factor [protected]

Definition at line 41 of file TrackMomentumConstraint.h. Referenced by getDerivatives(), getValue(), and TrackMomentumConstraint().

int TrackMomentumConstraint::nparams [mutable, protected]

Definition at line 45 of file TrackMomentumConstraint.h. Referenced by addToGlobalDerMatrix(), and updateCache().

double TrackMomentumConstraint::value [protected]

Definition at line 42 of file TrackMomentumConstraint.h. Referenced by getValue().

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

• TrackMomentumConstraint.h
• TrackMomentumConstraint.C

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