MarlinKinfit
0.4.0
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Implements constraint 0 = mass1 - mass2 - m. More...
#include <MassConstraint.h>
Public Member Functions | |
MassConstraint (double mass_=0.) | |
Constructor. More... | |
virtual | ~MassConstraint () |
Virtual destructor. | |
virtual double | getValue () const |
Returns the value of the constraint. | |
virtual void | getDerivatives (int idim, double der[]) const |
Get first order derivatives. More... | |
virtual double | getMass (int flag=1) |
Get the actual invariant mass of the fit objects with a given flag. More... | |
virtual void | setMass (double mass_) |
Sets the target mass of the constraint. More... | |
virtual int | getVarBasis () const |
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ParticleConstraint () | |
Creates an empty ParticleConstraint object. | |
virtual | ~ParticleConstraint () |
Virtual destructor. | |
virtual void | setFOList (std::vector< ParticleFitObject * > *fitobjects_) |
Adds several ParticleFitObject objects to the list. More... | |
virtual void | addToFOList (ParticleFitObject &fitobject, int flag=1) |
Adds one ParticleFitObject objects to the list. | |
virtual void | resetFOList () |
Resests ParticleFitObject list. | |
virtual void | invalidateCache () const |
Invalidates any cached values for the next event. | |
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virtual | ~BaseHardConstraint () |
Virtual destructor. | |
virtual void | add1stDerivativesToMatrix (double *M, int idim) const |
Adds first order derivatives to global covariance matrix M. More... | |
virtual void | add2ndDerivativesToMatrix (double *M, int idim, double lambda) const |
Adds second order derivatives to global covariance matrix M. More... | |
virtual void | addToGlobalChi2DerVector (double *y, int idim, double lambda) const |
Add lambda times derivatives of chi squared to global derivative vector. More... | |
virtual double | dirDer (double *p, double *w, int idim, double mu=1) |
Calculate directional derivative. More... | |
virtual double | dirDerAbs (double *p, double *w, int idim, double mu=1) |
Calculate directional derivative for abs(c) More... | |
virtual double | getError () const |
Returns the error on the value of the constraint. | |
virtual int | getGlobalNum () const |
Accesses position of constraint in global constraint list. | |
virtual void | setGlobalNum (int iglobal) |
Sets position of constraint in global constraint list. More... | |
virtual void | printFirstDerivatives () const |
virtual void | printSecondDerivatives () const |
virtual void | test1stDerivatives () |
virtual void | test2ndDerivatives () |
virtual double | num1stDerivative (int ifo, int ilocal, double eps) |
Evaluates numerically the 1st derivative w.r.t. a parameter. More... | |
virtual double | num2ndDerivative (int ifo1, int ilocal1, double eps1, int ifo2, int ilocal2, double eps2) |
Evaluates numerically the 2nd derivative w.r.t. 2 parameters. More... | |
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BaseConstraint () | |
Creates an empty BaseConstraint object. | |
BaseConstraint (const BaseConstraint &rhs) | |
Copy constructor. More... | |
BaseConstraint & | operator= (const BaseConstraint &rhs) |
Assignment. More... | |
virtual | ~BaseConstraint () |
Virtual destructor. | |
virtual const char * | getName () const |
Returns the name of the constraint. | |
virtual void | setName (const char *name_) |
Set object's name. | |
virtual std::ostream & | print (std::ostream &os) const |
print object to ostream More... | |
Protected Types | |
enum | { VAR_BASIS =0 } |
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typedef std::vector < BaseFitObject * > | FitObjectContainer |
Vector of pointers to ParticleFitObjects. | |
typedef FitObjectContainer::iterator | FitObjectIterator |
Iterator through vector of pointers to ParticleFitObjects. | |
typedef FitObjectContainer::const_iterator | ConstFitObjectIterator |
Constant iterator through vector of pointers to ParticleFitObjects. | |
Protected Member Functions | |
virtual bool | secondDerivatives (int i, int j, double *derivatives) const |
Second derivatives with respect to the 4-vectors of Fit objects i and j; result false if all derivatives are zero. More... | |
virtual bool | firstDerivatives (int i, double *derivatives) const |
First derivatives with respect to the 4-vector of Fit objects i; result false if all derivatives are zero. More... | |
Protected Attributes | |
double | mass |
The mass difference between object sets 1 and 2. | |
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FitObjectContainer | fitobjects |
The FitObjectContainer. | |
std::vector< double > | derivatives |
The derivatives. | |
std::vector< int > | flags |
The flags can be used to divide the FitObjectContainer into several subsets used for example to implement an equal mass constraint (see MassConstraint). More... | |
int | globalNum |
Position of constraint in global constraint list. | |
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char * | name |
Additional Inherited Members | |
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std::ostream & | operator<< (std::ostream &os, const BaseConstraint &bc) |
Prints out a BaseConstraint, using its print method. More... | |
Implements constraint 0 = mass1 - mass2 - m.
This class implements different mass constraints:
Author: Jenny List, Benno List Last update:
by:
MassConstraint::MassConstraint | ( | double | mass_ = 0. | ) |
Constructor.
mass_ | The mass difference between object sets 1 and 2 |
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protectedvirtual |
First derivatives with respect to the 4-vector of Fit objects i; result false if all derivatives are zero.
i | number of 1st FitObject |
derivatives | The result 4-vector |
Implements BaseHardConstraint.
References BaseHardConstraint::fitobjects, BaseHardConstraint::flags, ParticleFitObject::getE(), ParticleFitObject::getPx(), ParticleFitObject::getPy(), and ParticleFitObject::getPz().
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virtual |
Get first order derivatives.
Call this with a predefined array "der" with the necessary number of entries!
idim | First dimension of the array |
der | Array of derivatives, at least idim x idim |
Implements BaseHardConstraint.
References BaseHardConstraint::fitobjects, BaseHardConstraint::flags, ParticleFitObject::getDE(), ParticleFitObject::getDPx(), ParticleFitObject::getDPy(), ParticleFitObject::getDPz(), ParticleFitObject::getE(), BaseFitObject::getName(), ParticleFitObject::getPx(), ParticleFitObject::getPy(), and ParticleFitObject::getPz().
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Get the actual invariant mass of the fit objects with a given flag.
flag | The flag |
References BaseHardConstraint::fitobjects, BaseHardConstraint::flags, ParticleFitObject::getE(), ParticleFitObject::getPx(), ParticleFitObject::getPy(), and ParticleFitObject::getPz().
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protectedvirtual |
Second derivatives with respect to the 4-vectors of Fit objects i and j; result false if all derivatives are zero.
i | number of 1st FitObject |
j | number of 2nd FitObject |
derivatives | The result 4x4 matrix |
Implements BaseHardConstraint.
References BaseHardConstraint::fitobjects, BaseHardConstraint::flags, ParticleFitObject::getE(), ParticleFitObject::getPx(), ParticleFitObject::getPy(), and ParticleFitObject::getPz().
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