MultiTrackKinematicConstraint Class Reference

#include <MultiTrackKinematicConstraint.h>

Inheritance diagram for MultiTrackKinematicConstraint:

Public Member Functions
virtual MultiTrackKinematicConstraint *	clone () const =0
	MultiTrackKinematicConstraint ()
virtual int	numberOfEquations () const =0
virtual AlgebraicMatrix	parametersDerivative (const std::vector< KinematicState > &, const GlobalPoint &) const =0
virtual AlgebraicMatrix	positionDerivative (const std::vector< KinematicState > &, const GlobalPoint &) const =0
virtual AlgebraicVector	value (const std::vector< KinematicState > &, const GlobalPoint &) const =0
virtual	~MultiTrackKinematicConstraint ()

Detailed Description

Pure abstract class implementing constraint application on multiple tracks (back to back, collinearity etc.) To be used by KinematicConstraindeVertexFitter only Class caches the information about calculation of of constraint equation derivatives and values at given linearization point. Point should be of 7*n+3 dimensions Where n - number of particles. 7 - parametrization for particles is (x,y,z,p_x,p_y,p_z,m), for vertex (x_v,y_v,z_v) Fitter usually takes current parameters as the first step point and the change it to the result of the first iteration.

Kirill Prokofiev, October 2003

Definition at line 24 of file MultiTrackKinematicConstraint.h.

Constructor & Destructor Documentation

MultiTrackKinematicConstraint::MultiTrackKinematicConstraint ( )

inline

Default constructor and destructor

Definition at line 32 of file MultiTrackKinematicConstraint.h.

{}

virtual MultiTrackKinematicConstraint::~MultiTrackKinematicConstraint ( )

inlinevirtual

Definition at line 34 of file MultiTrackKinematicConstraint.h.

{}

Member Function Documentation

virtual MultiTrackKinematicConstraint* MultiTrackKinematicConstraint::clone ( ) const

pure virtual

Implemented in TwoTrackMassKinematicConstraint, MultiTrackMassKinematicConstraint, ColinearityKinematicConstraint, CombinedKinematicConstraint, MultiTrackPointingKinematicConstraint, VertexKinematicConstraint, and MultiTrackVertexLinkKinematicConstraint.

virtual int MultiTrackKinematicConstraint::numberOfEquations ( ) const

pure virtual

Implemented in TwoTrackMassKinematicConstraint, MultiTrackMassKinematicConstraint, ColinearityKinematicConstraint, CombinedKinematicConstraint, MultiTrackPointingKinematicConstraint, VertexKinematicConstraint, and MultiTrackVertexLinkKinematicConstraint.

Referenced by KinematicConstrainedVertexUpdator::update().

virtual AlgebraicMatrix MultiTrackKinematicConstraint::parametersDerivative ( const std::vector< KinematicState > &  , const GlobalPoint &    ) const

pure virtual

Implemented in TwoTrackMassKinematicConstraint, MultiTrackMassKinematicConstraint, ColinearityKinematicConstraint, CombinedKinematicConstraint, MultiTrackPointingKinematicConstraint, MultiTrackVertexLinkKinematicConstraint, and VertexKinematicConstraint.

Referenced by KinematicConstrainedVertexUpdator::update().

virtual AlgebraicMatrix MultiTrackKinematicConstraint::positionDerivative ( const std::vector< KinematicState > &  , const GlobalPoint &    ) const

pure virtual

Implemented in TwoTrackMassKinematicConstraint, MultiTrackMassKinematicConstraint, ColinearityKinematicConstraint, CombinedKinematicConstraint, MultiTrackPointingKinematicConstraint, VertexKinematicConstraint, and MultiTrackVertexLinkKinematicConstraint.

Referenced by KinematicConstrainedVertexUpdator::update().

virtual AlgebraicVector MultiTrackKinematicConstraint::value ( const std::vector< KinematicState > &  , const GlobalPoint &    ) const

pure virtual

Methods making vector of values and derivative matrices with respect to vertex position and particle parameters. Input paramters are put into one vector: (Vertex position, particle_parameters_1,..., particle_parameters_n)

Implemented in TwoTrackMassKinematicConstraint, CombinedKinematicConstraint, MultiTrackMassKinematicConstraint, MultiTrackPointingKinematicConstraint, ColinearityKinematicConstraint, MultiTrackVertexLinkKinematicConstraint, and VertexKinematicConstraint.

Referenced by KinematicConstrainedVertexUpdator::update().