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class AliITSSortTrkl: public TObject

Helper class for finding multiple primary vertices
To be used by AliITSVertexer3D
It is based on the association of pairs of tracklets
obtained by matching reconstructed points onthe first
2 layers of SPD
Origin M. Masera masera@to.infn.it

Function Members (Methods)

public:

	AliITSSortTrkl()
	AliITSSortTrkl(Int_t n, Double_t cut = 0.05)
	AliITSSortTrkl(TClonesArray& tclo, Int_t n, Double_t cut, Double_t rcut)
virtual	~AliITSSortTrkl()
void	TObject::AbstractMethod(const char* method) const
Int_t	AddPairs(Int_t t1, Int_t t2, Double_t dca, Double_t* coo)
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 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
Int_t	FindClusters()
virtual TObject*	TObject::FindObject(const char* name) const
virtual TObject*	TObject::FindObject(const TObject* obj) const
Int_t*	GetClusters(Int_t index) const
Int_t*	GetClustersTmp(Int_t index)
Double_t	GetCut() const
virtual Option_t*	TObject::GetDrawOption() const
static Long_t	TObject::GetDtorOnly()
virtual const char*	TObject::GetIconName() const
Int_t	GetIndex() const
virtual const char*	TObject::GetName() const
Int_t	GetNumberOfClusters() const
virtual char*	TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_t	TObject::GetObjectStat()
virtual Option_t*	TObject::GetOption() const
AliITSTracklPairs*	GetPairsAt(Int_t i) const
Int_t	GetSizeOfCluster(Int_t index) const
virtual const char*	TObject::GetTitle() const
Int_t*	GetTrackletsLab(Int_t index, Int_t& dim) 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	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)
virtual void	TObject::Paint(Option_t* option = "")
virtual void	TObject::Pop()
virtual void	TObject::Print(Option_t* option = "") 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)
void	SetCut(Double_t cut)
virtual void	TObject::SetDrawOption(Option_t* option = "")MENU
static void	TObject::SetDtorOnly(void* obj)
static void	TObject::SetObjectStat(Bool_t stat)
virtual void	TObject::SetUniqueID(UInt_t uid)
virtual void	ShowMembers(TMemberInspector&)
static void	SortAndClean(Int_t numb, Int_t* arr, Int_t& numb2)
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 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:

	AliITSSortTrkl(const AliITSSortTrkl& pa)
void	Cleanup()
void	Clustering(Int_t i, Int_t* v)
void	DeleteClustersTmp()
virtual void	TObject::DoError(int level, const char* location, const char* fmt, va_list va) const
Int_t*	FindLabels(Int_t* v, Int_t dimmax, Int_t& dim) const
void	TObject::MakeZombie()
AliITSSortTrkl&	operator=(const AliITSSortTrkl&)
void	PrepareClustersTmp()

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:

Int_t**	fClusters	List of clusters of tracklet pairs after cleanup
Int_t**	fClustersTmp	Temporary list of clusters of tracklet pairs
Double_t	fCoarseMaxRCut	cut on distance from beam axis
Double_t	fCut	cut on distance of DCAs of pairs for association
Int_t	fIndex	Total number of tracklet pairs (<=fkSize)
TBits	fMark	Used to mask used pairs
Int_t	fNoClus	Number of clusters of tracklet pairs
AliITSTracklPairs**	fPairs	array of tracklet pairs (pointers to)
Int_t*	fSize	Number of pairs for each cluster
const Int_t	fkSize	Maximum number of tracklet pairs

Class Charts

Inheritance Chart:

TObject

←

AliITSSortTrkl

Function documentation

AliITSSortTrkl()

 Default constructor

AliITSSortTrkl(Int_t n, Double_t cut = 0.05)

 Standard constructor

AliITSSortTrkl(TClonesArray& tclo, Int_t n, Double_t cut, Double_t rcut)

 Constructor based on a TClonesArray of AliStrLine

~AliITSSortTrkl()

 Destructor

void DeleteClustersTmp()

 fClustersTmp is deleted

Int_t AddPairs(Int_t t1, Int_t t2, Double_t dca, Double_t* coo)

 Add a tracklet pair at current position

Int_t FindClusters()

 find clusters

void Cleanup()

 empty arrays are eliminated, the others are sorted according
 to cluster multiplicity

Int_t* GetTrackletsLab(Int_t index, Int_t& dim) const

 Returns the tracklet labels corresponding to cluster index
 Calling code must take care of memory deallocation

Int_t* FindLabels(Int_t* v, Int_t dimmax, Int_t& dim) const

 Returns the tracklet labels corresponding to te list of pairs
 contained in v.
 Calling code must take care of memory deallocation

void SortAndClean(Int_t numb, Int_t* arr, Int_t& numb2)

 Array arr (with numb elements) is sorted in ascending order.
 Then possible reoccurrences
 of elements are eliminated. numb2 is the number of remaining elements
 after cleanup.

void PrepareClustersTmp()

 prepare arrays of clusters

void Clustering(Int_t i, Int_t* v)

 recursive method to build up clusters starting from point i

AliITSSortTrkl()

Int_t GetIndex() const

{return fIndex;}

void SetCut(Double_t cut)

{fCut = cut;}

Double_t GetCut() const

{return fCut; }

Int_t* GetClusters(Int_t index) const

Int_t GetNumberOfClusters() const

{return fNoClus;}

Int_t GetSizeOfCluster(Int_t index) const

Int_t* GetClustersTmp(Int_t index)

 FOR DEBUGGING PURPOSES

{return fClustersTmp[index];}

AliITSTracklPairs* GetPairsAt(Int_t i) const

AliITSSortTrkl& operator=(const AliITSSortTrkl& )