MarlinTPC  1.2.0
Public Member Functions | Static Public Member Functions | List of all members
marlintpc::TrackFitterSimpleMinimizer Class Reference

Simple $\chi^2$-like fitter which sets all errors to 1. More...

#include <TrackFitterSimpleMinimizer.h>

Inheritance diagram for marlintpc::TrackFitterSimpleMinimizer:
marlintpc::TrackFitterBase

Public Member Functions

virtual std::string getRevision () const
 Get the revision of the actual fitter implementation. More...
 
virtual unsigned char getFitterType () const
 Information what fitter implementation this is.
 
virtual IMPL::TrackImpl * fitTrack (EVENT::Track const *seedTrack) const
 The implementation using the fitter function with all errors set to 1.
 
- Public Member Functions inherited from marlintpc::TrackFitterBase
 TrackFitterBase ()
 The Constructor. More...
 
virtual EVENT::DoubleVec calculateResiduals (EVENT::Track const *testTrack, unsigned int testHitNumber, EVENT::Track const *referenceTrack=NULL) const
 Return the distance of the hit testHitNumber of the testTrack to the point of closest approach on the referenceTrack wrt. the hit. More...
 
virtual EVENT::DoubleVec calculateResiduals (EVENT::TrackerHit const *testHit, EVENT::Track const *trackWithoutTestHit) const
 Return the distance of the given hit to the test track where this hit has been removed. More...
 
void setD0Start (double d0)
 Set a d0 start value for the fit. More...
 
void setPhiStart (double phi)
 Set a phi start value for the fit. More...
 
void setOmegaStart (double omega)
 Set a omega start value for the fit. More...
 
void setTanLambdaStart (double tanLambda)
 Set a tanLambda start value for the fit. More...
 
void setZ0Start (double z0)
 Set a z0 start value for the fit. More...
 
void setNoZFitFlag (bool noZFit=true)
 Switch to turn off the fitting in z. More...
 
bool getNoZFitFlag () const
 Get the noZFit flag.
 
void fixD0 (bool fix=true)
 Fix or release d0.
 
void fixPhi (bool fix=true)
 Fix or release phi.
 
void fixOmega (bool fix=true)
 Fix or release omega.
 
void fixTanLambda (bool fix=true)
 Fix or release tanLambda.
 
void fixZ0 (bool fix=true)
 Fix or release z0.
 

Static Public Member Functions

static TrackFitterBasegetInstance (LCParameters const *parameters)
 Well defined interface to create a new instance of the track fitter.
 
- Static Public Member Functions inherited from marlintpc::TrackFitterBase
static void setTrackFitterType (unsigned char type, IMPL::TrackImpl *track)
 Convenience function to set bits 16-23 to be the track type.
 
static unsigned char getFitterTypeFromTrack (int trackTypeWord)
 Convenicene function to get the tracker type out of the trackType word.
 

Additional Inherited Members

- Static Public Attributes inherited from marlintpc::TrackFitterBase
static const unsigned char FITFAILEDBIT = 30
 Bit 30 in the TrackType word is fit failed.
 
- Protected Member Functions inherited from marlintpc::TrackFitterBase
double distanceOnCircle (double phi1, double phi2) const
 Calculate the angular distance on a circle. More...
 
- Protected Attributes inherited from marlintpc::TrackFitterBase
double _d0Start
 The start value for the fit and a flag whether to apply d0Start or the value from the seed track.
 
bool _useD0Start
 
double _phiStart
 The start value for the fit and a flag whether to apply phiStart or the value from the seed track.
 
bool _usePhiStart
 
double _omegaStart
 The start value for the fit and a flag whether to apply omegaStart or the value from the seed track.
 
bool _useOmegaStart
 
double _tanLambdaStart
 The start value for the fit and a flag whether to apply tanLambdaStart or the value from the seed track.
 
bool _useTanLambdaStart
 
double _z0Start
 The start value for the fit and a flag whether to apply z0Start or the value from the seed track.
 
bool _useZ0Start
 
bool _noZFit
 flag whether to perform a 2D or a 3D fit
 
bool _fixD0
 flags whether to fix a fit parameter
 
bool _fixPhi
 
bool _fixOmega
 
bool _fixTanLambda
 
bool _fixZ0
 

Detailed Description

Simple $\chi^2$-like fitter which sets all errors to 1.

The value of the sum of the squared residuals is not useful to estimate the errors, but the minimisation should work.

The CalculateResiduals() function from TrackFitterBase is used.

Member Function Documentation

std::string marlintpc::TrackFitterSimpleMinimizer::getRevision ( ) const
virtual

Get the revision of the actual fitter implementation.

This is needed for revision logging. Implementation should look like:

return std::string( "$Rev$" ); 

In case you don't reimplement the calculateResidulas methods you should also state the revision of this base class:

return std::string( "$Rev$ ; TrackFitterBase ") + TrackFitterBase::getRevision(); 

Don't forget to switch on the 'svn Rev' property for this file:

svn propset svn:keywords Rev TrackFitterImpl.cc 

Reimplemented from marlintpc::TrackFitterBase.


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