CombinedKinematicConstraint Class Reference

#include <CombinedKinematicConstraint.h>

Inheritance diagram for CombinedKinematicConstraint:

Public Member Functions
virtual CombinedKinematicConstraint *	clone () const
	CombinedKinematicConstraint (std::vector< MultiTrackKinematicConstraint * > constraintVector)
virtual int	numberOfEquations () const
virtual AlgebraicMatrix	parametersDerivative (const std::vector< KinematicState > states, const GlobalPoint &point) const
virtual AlgebraicMatrix	positionDerivative (const std::vector< KinematicState > states, const GlobalPoint &point) const
virtual AlgebraicVector	value (const std::vector< KinematicState > states, const GlobalPoint &point) const
Public Member Functions inherited from MultiTrackKinematicConstraint
	MultiTrackKinematicConstraint ()
virtual	~MultiTrackKinematicConstraint ()

Private Attributes
std::vector < MultiTrackKinematicConstraint * >	constraints

Detailed Description

This class combines several user defined constraints (by expanding the vector d and the matrices D and E). Usage: Add each constraint to a std::vector<MultiTrackKinematicConstraint* >. This vector has to be used in the constructor: MultiTrackKinematicConstraint combiC = new CombinedKinematicConstraint(std::vector<MultiTrackKinematicConstraint >) The produced object can be used by KinematicConstrainedVertexFitter.fit()

Lars Perchalla, Philip Sauerland, Dec 2009

Definition at line 20 of file CombinedKinematicConstraint.h.

Constructor & Destructor Documentation

CombinedKinematicConstraint::CombinedKinematicConstraint ( std::vector< MultiTrackKinematicConstraint * >  constraintVector )

inline

Definition at line 23 of file CombinedKinematicConstraint.h.

References constraints.

Referenced by clone().

                                                                                            :constraints(constraintVector){
        if(constraints.size()<1) throw VertexException("CombinedKinematicConstraint::<1 constraints passed.");
    }

Member Function Documentation

virtual CombinedKinematicConstraint* CombinedKinematicConstraint::clone ( void  ) const

inlinevirtual

Implements MultiTrackKinematicConstraint.

Definition at line 53 of file CombinedKinematicConstraint.h.

References CombinedKinematicConstraint().

    {
        return new CombinedKinematicConstraint(*this);
    }

int CombinedKinematicConstraint::numberOfEquations ( ) const

virtual

Number of equations per track used for the combined fit

Implements MultiTrackKinematicConstraint.

Definition at line 60 of file CombinedKinematicConstraint.cc.

References constraints.

{
    int noEq = 0;
    for (std::vector<MultiTrackKinematicConstraint* >::const_iterator it=constraints.begin(); it!=constraints.end(); ++it) noEq += (*it)->numberOfEquations();
    
    return noEq;
}

AlgebraicMatrix CombinedKinematicConstraint::parametersDerivative ( const std::vector< KinematicState >  states, const GlobalPoint &  point  ) const

virtual

Returns a matrix of derivatives of the combined constraint equations w.r.t. particle parameters

Implements MultiTrackKinematicConstraint.

Definition at line 22 of file CombinedKinematicConstraint.cc.

References constraints.

{
    AlgebraicMatrix tmpMatrix;
    int row = 0;
    for (std::vector<MultiTrackKinematicConstraint* >::const_iterator it=constraints.begin(); it!=constraints.end(); ++it){
        tmpMatrix = (*it)->parametersDerivative(states, point);
        row += tmpMatrix.num_row();
    }
    AlgebraicMatrix matrix(row,7*states.size(),0);
    int posRow = 1;
    for (std::vector<MultiTrackKinematicConstraint* >::const_iterator it=constraints.begin(); it!=constraints.end(); ++it){
        tmpMatrix =  (*it)->parametersDerivative(states, point);
        matrix.sub(posRow, 1, tmpMatrix);
        posRow += tmpMatrix.num_row();
    }
    
    return matrix;
}

AlgebraicMatrix CombinedKinematicConstraint::positionDerivative ( const std::vector< KinematicState >  states, const GlobalPoint &  point  ) const

virtual

Returns a matrix of derivatives of constraint equations w.r.t. vertex position

Implements MultiTrackKinematicConstraint.

Definition at line 41 of file CombinedKinematicConstraint.cc.

References constraints.

{
    AlgebraicMatrix tmpMatrix;
    int row = 0;
    for (std::vector<MultiTrackKinematicConstraint* >::const_iterator it=constraints.begin(); it!=constraints.end(); ++it){
        tmpMatrix = (*it)->positionDerivative(states, point);
        row += tmpMatrix.num_row();
    }
    AlgebraicMatrix matrix(row,3,0);
    int posRow = 1;
    for (std::vector<MultiTrackKinematicConstraint* >::const_iterator it=constraints.begin(); it!=constraints.end(); ++it){
        tmpMatrix =  (*it)->positionDerivative(states, point);
        matrix.sub(posRow, 1, tmpMatrix);
        posRow += tmpMatrix.num_row();
    }
    
    return matrix;
}

AlgebraicVector CombinedKinematicConstraint::value ( const std::vector< KinematicState >  states, const GlobalPoint &  point  ) const

virtual

Returns a vector of values of the combined constraint equations at the point where the input particles are defined.

Implements MultiTrackKinematicConstraint.

Definition at line 3 of file CombinedKinematicConstraint.cc.

References constraints, position, findQualityFiles::size, and makeHLTPrescaleTable::values.

{
    AlgebraicVector tmpValue;
    int size = 0;
    for (std::vector<MultiTrackKinematicConstraint* >::const_iterator it=constraints.begin(); it!=constraints.end(); ++it){
        tmpValue = (*it)->value(states, point);
        size += tmpValue.num_row();
    }
    AlgebraicVector values(size);
    int position = 1;
    for (std::vector<MultiTrackKinematicConstraint* >::const_iterator it=constraints.begin(); it!=constraints.end(); ++it){
        tmpValue =  (*it)->value(states, point);
        values.sub(position, tmpValue);
        position += tmpValue.num_row();
    }
    
    return values;
}

Member Data Documentation

std::vector<MultiTrackKinematicConstraint* > CombinedKinematicConstraint::constraints

private

Definition at line 59 of file CombinedKinematicConstraint.h.

Referenced by CombinedKinematicConstraint(), numberOfEquations(), parametersDerivative(), positionDerivative(), and value().