Class for Hough space based on TH2S (for the moment). Saves the hits which enter this Hough space and finds peaks. More...

#include <PndFtsHoughSpace.h>

Inheritance diagram for PndFtsHoughSpace:

Public Member Functions
	PndFtsHoughSpace (const char name=nullptr, const Int_t refIndex=-1, PndFtsHoughSpaceBinning binning=PndFtsHoughSpaceBinning(), Double_t zRefPos=0., Double_t interceptZx=0., PndFtsHoughTrackCand associatedTrackCand=nullptr, PndFtsHoughTrackerTask *trackerTask=nullptr)

	~PndFtsHoughSpace ()

std::vector< PndFtsHoughTracklet >	FindAllPeaksScanPathsMergeBins (const UInt_t minHeight)
	Finds all peaks that satisfy the minimum height requirement minHeight. More...

std::vector< PndFtsHoughTracklet >	FindAllPeaksScanPathsMergeBinsCalculatingPaths (const UInt_t minHeight)
	Finds all peaks that satisfy the minimum height requirement minHeight. More...

std::vector< PndFtsHoughTracklet >	FindAllPeaksWithTSpectrum2 (const UInt_t minHeight)
	Finds all peaks that satisfy the minimum height requirement minHeight. More...

std::vector< PndFtsHoughTracklet >	FindAllPeaksBinsWoMergingWithSearchWindow (const UInt_t minHeight, const Int_t vicinityLength=0)
	Finds all peaks that satisfy the minimum height requirement minHeight. More...

std::vector< PndFtsHoughTracklet >	FindAllPeaksBlanko (const UInt_t minHeight)
	Finds all peaks that satisfy the minimum height requirement minHeight. More...

void	FillHoughSpace ()
	Fills the Hough space using the equation which corresponds to the name of the Hough space. More...

void	Print () const

void	setVerbose (Int_t verbose)

Double_t	getInterceptZx () const

Double_t	getZRefPos () const

UInt_t	GetNHits () const

	ClassDef (PndFtsHoughSpace, 1)

Detailed Description

Class for Hough space based on TH2S (for the moment). Saves the hits which enter this Hough space and finds peaks.

Author: Martin J. Galuska <martin [dot] j [dot] galuska (at) physik [dot] uni (minus) giessen [dot] de>

Note //! after a member means for root that it should not write it to disk when the object is saved

TODO Save path through Hough spaces with global indices!!! TODO: Separate peak finder from Hough space

The angle (theta in rad) is always on x-axis, the value on the y-axis depends on the kind of Hough transform:

HT type	yValue
parabola	Q/p_{zx}
line	intercept (Achsenabschnitt) (in z-x- or z-y-plane)

All FTS hits are scanned within the constructor by filterInputHits(). The hits which are relevant for this Hough space are saved in fHitId and can be accessed with getHit(UInt_t index).

Created: 21.02.2014

Definition at line 61 of file PndFtsHoughSpace.h.

Constructor & Destructor Documentation

◆ PndFtsHoughSpace()

PndFtsHoughSpace::PndFtsHoughSpace	(	const char *	name = `nullptr`,
		const Int_t	refIndex = `-1`,
		PndFtsHoughSpaceBinning	binning = `PndFtsHoughSpaceBinning()`,
		Double_t	zRefPos = `0.`,
		Double_t	interceptZx = `0.`,
		PndFtsHoughTrackCand *	associatedTrackCand = `nullptr`,
		PndFtsHoughTrackerTask *	trackerTask = `nullptr`
	)

◆ ~PndFtsHoughSpace()

PndFtsHoughSpace::~PndFtsHoughSpace ( )

Member Function Documentation

◆ ClassDef()

PndFtsHoughSpace::ClassDef	(	PndFtsHoughSpace	,
		1
	)

Referenced by GetNHits().

◆ FillHoughSpace()

void PndFtsHoughSpace::FillHoughSpace ( )

Fills the Hough space using the equation which corresponds to the name of the Hough space.

If something goes wrong the function throws a runtime_error (probably Hough space name is set incorrectly).

!!! WARNING The theta values (in rad) are NOT the same as in the interaction point. They are always calculated relative to a shifted coordinate system and only 2-dimensional (either in z-x- or z-y-plane) !!!

The angle (theta in rad) to the z-axis in the z-x- or z-y-plane at a z reference position will be scanned from theta corresponding to lowest bin to theta corresponding to highest bin of x-axis.

TODO For each hit the "path" through the 2d histogram is saved for peak finding.

y component of B field will be read from field maps if fKeepBConstant is kFALSE.

Parameters

[in] Running index, only needed for Debugging output of Hough spaces