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AliRoot » PHOS » AliPHOSTrackSegmentMakerv2

class AliPHOSTrackSegmentMakerv2: public AliPHOSTrackSegmentMaker

 Implementation version 2 of algorithm class to construct PHOS track segments
 Track segment for PHOS is list of
        EMC RecPoint + (possibly) projection of TPC track
 To find TrackSegments we do the following:
  for each EMC RecPoints we look at
   TPC projections radius fRtpc.
  If there is such a track
   we make "Link" it is just indexes of EMC and TPC track and distance
   between them in the PHOS plane.
  Then we sort "Links" and starting from the
   least "Link" pointing to the unassined EMC and TPC assing them to
   new TrackSegment.
 If there is no TPC track we make TrackSegment
 consisting from EMC alone. There is no TrackSegments without EMC RecPoint.
 In principle this class should be called from AliPHOSReconstructor, but
 one can use it as well in standalone mode.
 Use  case:
  root [0] AliPHOSTrackSegmentMakerv2 * t = new AliPHOSTrackSegmentMaker("galice.root", "tracksegmentsname", "recpointsname")
  Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
               // reads gAlice from header file "galice.root", uses recpoints stored in the branch names "recpointsname" (default = "Default")
               // and saves recpoints in branch named "tracksegmentsname" (default = "recpointsname")
  root [1] t->ExecuteTask()
  root [3] t->SetTrackSegmentsBranch("max distance 5 cm")
  root [4] t->ExecuteTask("deb all time")

*-- Author: Dmitri Peressounko (RRC Ki & SUBATECH) & Yves Schutz (SUBATECH)

Function Members (Methods)

public:

	AliPHOSTrackSegmentMakerv2()
	AliPHOSTrackSegmentMakerv2(AliPHOSGeometry* geom)
	AliPHOSTrackSegmentMakerv2(const AliPHOSTrackSegmentMakerv2& tsm)
virtual	~AliPHOSTrackSegmentMakerv2()
void	TObject::AbstractMethod(const char* method) const
virtual void	TObject::AppendPad(Option_t* option = "")
virtual void	TObject::Browse(TBrowser* b)
static TClass*	Class()
virtual const char*	TObject::ClassName() const
virtual void	TObject::Clear(Option_t* = "")
virtual TObject*	TObject::Clone(const char* newname = "") const
virtual void	Clusters2TrackSegments(Option_t* option)
virtual Int_t	TObject::Compare(const TObject* obj) const
virtual void	TObject::Copy(TObject& object) const
virtual void	TObject::Delete(Option_t* option = "")MENU
virtual Int_t	TObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual void	TObject::Draw(Option_t* option = "")
virtual void	TObject::DrawClass() constMENU
virtual TObject*	TObject::DrawClone(Option_t* option = "") constMENU
virtual void	TObject::Dump() constMENU
virtual void	TObject::Error(const char* method, const char* msgfmt) const
virtual void	TObject::Execute(const char* method, const char* params, Int_t* error = 0)
virtual void	TObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)
virtual void	TObject::ExecuteEvent(Int_t event, Int_t px, Int_t py)
virtual void	TObject::Fatal(const char* method, const char* msgfmt) const
void	FillOneModule()
virtual TObject*	TObject::FindObject(const char* name) const
virtual TObject*	TObject::FindObject(const TObject* obj) const
virtual Option_t*	TObject::GetDrawOption() const
static Long_t	TObject::GetDtorOnly()
AliESDEvent*	AliPHOSTrackSegmentMaker::GetESD() const
virtual const char*	TObject::GetIconName() const
virtual const char*	TObject::GetName() const
virtual char*	TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_t	TObject::GetObjectStat()
virtual Option_t*	TObject::GetOption() const
virtual const char*	TObject::GetTitle() const
virtual TClonesArray*	GetTrackSegments() const
virtual UInt_t	TObject::GetUniqueID() const
virtual Bool_t	TObject::HandleTimer(TTimer* timer)
virtual ULong_t	TObject::Hash() const
virtual void	TObject::Info(const char* method, const char* msgfmt) const
virtual Bool_t	TObject::InheritsFrom(const char* classname) const
virtual Bool_t	TObject::InheritsFrom(const TClass* cl) const
virtual void	TObject::Inspect() constMENU
void	TObject::InvertBit(UInt_t f)
virtual TClass*	IsA() const
virtual Bool_t	TObject::IsEqual(const TObject* obj) const
virtual Bool_t	TObject::IsFolder() const
Bool_t	TObject::IsOnHeap() const
virtual Bool_t	TObject::IsSortable() const
Bool_t	TObject::IsZombie() const
virtual void	TObject::ls(Option_t* option = "") const
void	MakeLinks()
void	MakePairs()
void	TObject::MayNotUse(const char* method) const
virtual Bool_t	TObject::Notify()
void	TObject::Obsolete(const char* method, const char* asOfVers, const char* removedFromVers) const
static void	TObject::operator delete(void* ptr)
static void	TObject::operator delete(void* ptr, void* vp)
static void	TObject::operator delete[](void* ptr)
static void	TObject::operator delete[](void* ptr, void* vp)
void*	TObject::operator new(size_t sz)
void*	TObject::operator new(size_t sz, void* vp)
void*	TObject::operator new[](size_t sz)
void*	TObject::operator new[](size_t sz, void* vp)
AliPHOSTrackSegmentMakerv2&	operator=(const AliPHOSTrackSegmentMakerv2&)
virtual void	TObject::Paint(Option_t* option = "")
virtual void	TObject::Pop()
virtual void	Print(Option_t* = "") const
virtual Int_t	TObject::Read(const char* name)
virtual void	TObject::RecursiveRemove(TObject* obj)
void	TObject::ResetBit(UInt_t f)
virtual void	TObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU
virtual void	TObject::SavePrimitive(basic_ostream<char,char_traits<char> >& out, Option_t* option = "")
void	TObject::SetBit(UInt_t f)
void	TObject::SetBit(UInt_t f, Bool_t set)
virtual void	TObject::SetDrawOption(Option_t* option = "")MENU
static void	TObject::SetDtorOnly(void* obj)
void	AliPHOSTrackSegmentMaker::SetESD(AliESDEvent* esd)
void	AliPHOSTrackSegmentMaker::SetInput(TTree* clustersTree)
virtual void	SetMaxTPCDistance(Float_t r)
static void	TObject::SetObjectStat(Bool_t stat)
virtual void	TObject::SetUniqueID(UInt_t uid)
void	SetWriting(Bool_t toWrite = kFALSE)
virtual void	ShowMembers(TMemberInspector&)
virtual void	Streamer(TBuffer&)
void	StreamerNVirtual(TBuffer& ClassDef_StreamerNVirtual_b)
virtual void	TObject::SysError(const char* method, const char* msgfmt) const
Bool_t	TObject::TestBit(UInt_t f) const
Int_t	TObject::TestBits(UInt_t f) const
virtual void	TObject::UseCurrentStyle()
virtual const char*	Version() const
virtual void	TObject::Warning(const char* method, const char* msgfmt) const
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0)
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const

protected:

virtual void	TObject::DoError(int level, const char* location, const char* fmt, va_list va) const
void	TObject::MakeZombie()

private:

void	GetDistanceInPHOSPlane(AliPHOSEmcRecPoint* EmcClu, AliESDtrack* track, Float_t& dx, Float_t& dz) const
void	Init()
void	InitParameters()
void	PrintTrackSegments(Option_t* option)

Data Members

public:

enum TObject::EStatusBits {	kCanDelete
	kMustCleanup
	kObjInCanvas
	kIsReferenced
	kHasUUID
	kCannotPick
	kNoContextMenu
	kInvalidObject
};
enum TObject::[unnamed] {	kIsOnHeap
	kNotDeleted
	kZombie
	kBitMask
	kSingleKey
	kOverwrite
	kWriteDelete
};

protected:

TObjArray*	AliPHOSTrackSegmentMaker::fCPVRecPoints	Array with the CPV clusters
TObjArray*	AliPHOSTrackSegmentMaker::fEMCRecPoints	Array with the EMC clusters
AliESDEvent*	AliPHOSTrackSegmentMaker::fESD	! ESD object
AliPHOSGeometry*	AliPHOSTrackSegmentMaker::fGeom	! Pointer to the PHOS geometry

private:

Bool_t	fDefaultInit	! Says if the task was created by defaut ctor (only parameters are initialized)
Int_t	fEmcFirst	! Index of first EMC RecPoint belonging to currect PHOS module
Int_t	fEmcLast	!
TClonesArray*	fLinkUpArray	!
Int_t	fModule	! number of module being processed
Int_t	fNTrackSegments	number of track segments found
Int_t	fNtpcTracks[5]	!
Float_t	fRtpc	Maximum distance between a EMC RecPoint and extrapolation of a TPC track
vector<TrackInPHOS_t>	fTPCtracks[5]	!
TClonesArray*	fTrackSegments	Array with found track-segments
TVector3	fVtx	! Vertex in current position
Bool_t	fWrite	Write Tracks to TreeT

Class Charts

Inheritance Chart:

TObject

←

AliPHOSTrackSegmentMaker

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AliPHOSTrackSegmentMakerv2

Function documentation

AliPHOSTrackSegmentMakerv2()

 default ctor (to be used mainly by Streamer)

AliPHOSTrackSegmentMakerv2(AliPHOSGeometry* geom)

 ctor

AliPHOSTrackSegmentMakerv2(const AliPHOSTrackSegmentMakerv2& tsm)

 cpy ctor: no implementation yet
 requested by the Coding Convention

~AliPHOSTrackSegmentMakerv2()

 dtor
 fDefaultInit = kTRUE if TrackSegmentMaker created by default ctor (to get just the parameters)

void FillOneModule()

 Finds first and last indexes between which
 clusters from one PHOS module are

void GetDistanceInPHOSPlane(AliPHOSEmcRecPoint* EmcClu, AliESDtrack* track, Float_t& dx, Float_t& dz) const

 Calculates the distance between the EMC RecPoint and the CPV RecPoint
 Clusters are sorted in "rows" and "columns" of width 1 cm

void Init()

 Make all memory allocations that are not possible in default constructor

void InitParameters()

Initializes parameters

void MakeLinks()

 Finds distances (links) between all EMC and CPV clusters,
 which are not further apart from each other than fRcpv
 and sort them in accordance with this distance

void MakePairs()

 Using the previously made list of "links", we found the smallest link - i.e.
 link with the least distance between EMC and CPV and pointing to still
 unassigned RecParticles. We assign these RecPoints to TrackSegment and
 remove them from the list of "unassigned".

void Clusters2TrackSegments(Option_t* option)

 Steering method to perform track segment construction for events
 in the range from fFirstEvent to fLastEvent.
 This range is optionally set by SetEventRange().
 if fLastEvent=-1 (by default), then process events until the end.

void Print(Option_t* = "") const

  Print TrackSegmentMaker parameters

void PrintTrackSegments(Option_t* option)

 option deb - prints # of found TrackSegments
 option deb all - prints as well indexed of found RecParticles assigned to the TS

void SetWriting(Bool_t toWrite = kFALSE)

Switch to "on flyght" mode, without writing to TreeR and file

{fWrite = toWrite;}

void SetMaxTPCDistance(Float_t r)

between EMCrp and extrapolation of TPC track

{ fRtpc = r ;}

const char * Version() const

{ return "tsm-v2" ; }

TClonesArray * GetTrackSegments() const

{ return fTrackSegments; }