marlintpc::TimePixHoughTransformNormalProcessor Class Reference

Take an inputCollection of TrackerHits, treat those TrackerHits in groups (based on their CellID1(cihpID)) and reconstruct Tracks for each group separately. More...

#include <TimePixHoughTransformNormalProcessor.h>

Inheritance diagram for marlintpc::TimePixHoughTransformNormalProcessor:

Classes
struct	TrackProperties
	nested helper class that stores the properties of a straight track More...

Public Types
typedef std::vector< TrackImpl * >	TrackImplVec

Public Member Functions
virtual Processor *	newProcessor ()
virtual void	init ()
virtual void	processRunHeader (lcio::LCRunHeader *run)
virtual void	processEvent (lcio::LCEvent *evt)
virtual void	check (lcio::LCEvent *evt)
virtual void	end ()
virtual void	FillHistogram ()
	Fills the Hough Space in XY.
virtual void	GetTrackProperties ()
	For each entry greater than _nHitsOnTrack; Store the corresponding phi, D0 and the hits on this Track.
virtual void	CreateTracks ()
	For each track property, create a track.
virtual void	AddHits ()
	For each track add the corresponding hits. More...
virtual void	RemoveSparseTracks (TrackImplVec &ImplVec, TrackImplVec::iterator itFirst, TrackImplVec::iterator itLast)
	remove tracks with less hits than _nHitsOnTrack
virtual void	OutputAddElement (LCCollectionVec *&outputCol, TrackImplVec::iterator itFirst, TrackImplVec::iterator itLast)
	add every element in range to output

Static Public Member Functions
static bool	sortPredicate (const TrackProperties &lhs, const TrackProperties &rhs)
static bool	sortTrackImpl (const TrackImpl *lhs, const TrackImpl *rhs)

Protected Attributes
TH1D *	_hMaxConvoluted
std::string	_inputColName
	Name of the input collection.
std::string	_outputColName
	Name of the output collection.
LCCollectionVec *	_inputColVec
int	_nHitsOnTrack
	minimum number if hits on track
int	_ChipID
	only the chip with _ChipID (CellID1) will be processed; if set to -1 all chipIDs will be processed
double	_maxDistanceToTrackY
	Maximum distance of a hit to the track in mm in the xy plane.
TrackerHitVec	_hitVec
	store TRackerHits from _inputColVec
std::vector< TrackProperties >	_trackPropertiesY
	storing track properties for xy plane
TrackImplVec	_trackImplsY
	storing in xy plane found tracks
TH2D *	_histoHoughSpace
	one Hough space histogram
std::vector< TH2D * >	_histoHoughSpaceVec
	vector of Hough space histograms
int	_houghSpaceNBinsPhi
	The number of bins in the hough space histogram in 'phi' direction (default 100)
float	_houghSpaceMaxPhi
	The half range (HoughSpaceMinPhi .. HoughSpaceMaxPhi) of the Hough space histogram in 'phi' direction (default +0.5 pi)
float	_houghSpaceMinPhi
	The half range (HoughSpaceMinPhi .. HoughSpaceMaxPhi) of the Hough space histogram in 'phi' direction (default -0.5 pi)
int	_houghSpaceNBinsD0
	The number of bins in the hough space histogram in 'D0' direction (default 50)
float	_houghSpaceMaxD0
	The half range (-max..max) of the Hough space histogram in 'D0' direction (default 65)
std::string	_fileName
	Histograms will be written to this file.
int	_MaxHisto
	Maximum number of saved Histograms.
int	_CurrentHisto
int	_outputIsTransient
	< Number of the current Histogram More...

Detailed Description

Take an inputCollection of TrackerHits, treat those TrackerHits in groups (based on their CellID1(cihpID)) and reconstruct Tracks for each group separately.

Which CellID1 is used can be specified setting "ProcessedChipID", default is -1 meaning all CellID1s will be used.


Straight line in xy-plane is parameterized as:
y = x * tan() + D0/cos() = x * {sin()}{cos()} + {D0}{cos()}
or in Hough space:
D0 = y * cos() - x * sin()

Author

Martin Rogowski, University of Bonn

Member Function Documentation

void marlintpc::TimePixHoughTransformNormalProcessor::AddHits ( )

virtual

For each track add the corresponding hits.

Starting from the Track with the greatest number of hits on Track.

References _hitVec, _maxDistanceToTrackY, _trackImplsY, marlintpc::TrackFitterBase::calculateResiduals(), marlintpc::TrackFitterFactory::getTrackFitter(), and marlintpc::TrackFitterBase::FitterTypes::SIMPLEMINIMIZER.

Member Data Documentation

int marlintpc::TimePixHoughTransformNormalProcessor::_outputIsTransient

protected

< Number of the current Histogram

give the status which is set to the transient flag of the output collection it is an int instead of a boolean, because the processor parameter cannot be a boolean

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

• TimePixHoughTransformNormalProcessor.h
• TimePixHoughTransformNormalProcessor.cc