TFastFinder Class Reference

A class to find tracks with the conformal method. More...

#include <TFastFinder.h>

Inheritance diagram for TFastFinder:

Public Member Functions
	TFastFinder ()
	Constructor.
virtual	~TFastFinder ()
	Destructor.
std::string	name (void) const
	returns name.
std::string	version (void) const
	returns version.
void	dump (const std::string &message=std::string(""), const std::string &prefix=std::string("")) const
	dumps debug information.
void	clear (void)
	clear internal information.
int	doit (const AList< TMDCWireHit > &axialHits, const AList< TMDCWireHit > &stereoHits, AList< TTrack > &tracks)
	finds tracks.
Public Member Functions inherited from TFinderBase
	TFinderBase ()
	Constructor.
virtual	~TFinderBase ()
	Destructor.
virtual std::string	name (void) const =0
	returns name.
virtual std::string	version (void) const =0
	returns version.
virtual void	dump (const std::string &message=std::string(""), const std::string &prefix=std::string("")) const
	dumps debug information.
virtual int	debugLevel (void) const
	returns debug level.
virtual void	clear (void)=0
	clear internal information.
virtual int	debugLevel (int)
	sets debug level.
virtual bool	doStereo (bool)
	sets flag to reconstruct 3D.
virtual bool	doSalvage (bool)
	sets flag to salvage hits.
virtual int	doit (const AList< TMDCWireHit > &axialHits, const AList< TMDCWireHit > &stereoHits, AList< TTrack > &tracks3D, AList< TTrack > &tracks2D)=0
	finds tracks. 'hits' are used to reconstruct. 'tracks' can be used for both inputs and outputs. Return value = (0, +, -) means (success, warning, fatal error).

Detailed Description

A class to find tracks with the conformal method.

Definition at line 26 of file TFastFinder.h.

Constructor & Destructor Documentation

TFastFinder()

TFastFinder::TFastFinder

(

)

Constructor.

Definition at line 20 of file TFastFinder.cxx.

                         : _builder("fast find builder", 30) {
    _selector.nLinks(4);
    _selector.nSuperLayers(2);
    _selector.minPt(0.05);
    _selector.maxImpact(100.);
    _selector.maxSigma(30.);
    _selector.nLinksStereo(3);
    _selector.maxDistance(30.);
    _builder.trackSelector(_selector);
}

~TFastFinder()

TFastFinder::~TFastFinder ( )

virtual

Destructor.

Definition at line 31 of file TFastFinder.cxx.

                          {
}

Member Function Documentation

clear()

void TFastFinder::clear ( void  )

virtual

clear internal information.

Implements TFinderBase.

Definition at line 46 of file TFastFinder.cxx.

                       {
    _axialHits.removeAll();
    _stereoHits.removeAll();
    HepAListDeleteAll(_axialLinks);
    HepAListDeleteAll(_stereoLinks);
}

doit()

int TFastFinder::doit	(	const AList< TMDCWireHit > &	axialHits,
		const AList< TMDCWireHit > &	stereoHits,
		AList< TTrack > &	tracks
	)

finds tracks.

Definition at line 54 of file TFastFinder.cxx.

                                  {
 
    //...Select good hits...
    selectHits2(axialHits, stereoHits);
 
    //...Conformal transformation with IP constraint...
    TConformalFinder0::conformalTransformationRphi(ORIGIN,
                           _axialHits,
                           _axialLinks);
    TConformalFinder0::conformalTransformationRphi(ORIGIN,
                           _stereoHits,
                           _stereoLinks);
 
    //...Make a histogram...
    THistogram hist(288);
    hist.fillX(_axialLinks);
    AList<TSegment0> clusters = hist.clusters0();
 
    //...Cluster loop...
    unsigned n = clusters.length();
    for (unsigned i = 0; i < n; i++) {
 
    //...2D track...
    TTrack * t = _builder.buildRphi(clusters[i]->links());
    if (t == NULL) continue;
#ifdef TRKRECO_DEBUG_DETAIL
    std::cout << "TFastFinder::doit ... 2D track found" << std::endl;
#endif
 
    //...Make it 3D...
    TTrack * ts = t;
    ts = _builder.buildStereo(* t,
                  findCloseHits(_stereoLinks,
                        * t));
    if (ts == NULL) continue;
#ifdef TRKRECO_DEBUG_DETAIL
    std::cout << "TFastFinder::doit ... 3D track found" << std::endl;
#endif
 
    //...OK...
    t->assign(WireHitFastFinder);
    t->finder(TrackFastFinder);
//  t->assign(WireHitFastFinder, TrackFastFinder);
    tracks.append(t);
    _stereoLinks.remove(t->links());
    }
 
    //...Termination...
    HepAListDeleteAll(clusters);
    return 0;
}

dump()

void TFastFinder::dump ( const std::string &  message = std::string(""), const std::string &  prefix = std::string("")  ) const

virtual

dumps debug information.

Reimplemented from TFinderBase.

Definition at line 40 of file TFastFinder.cxx.

                                                                    {
    std::cout << pre;
    TFinderBase::dump(msg);
}

name()

std::string TFastFinder::name ( void  ) const

inlinevirtual

returns name.

Implements TFinderBase.

Definition at line 95 of file TFastFinder.h.

                            {
    return "Fast Finder";
}

version()

std::string TFastFinder::version ( void  ) const

virtual

returns version.

Implements TFinderBase.

Definition at line 35 of file TFastFinder.cxx.

                               {
    return "0.00";
}

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

• TFastFinder.h
• TFastFinder.cxx