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AliRoot » MUON » AliMUONClusterFinderPeakCOG

class AliMUONClusterFinderPeakCOG: public AliMUONVClusterFinder

 \class AliMUONClusterFinderPeakCOG

 Clusterizer class based on simple peak finder

 Pre-clustering is handled by AliMUONPreClusterFinder
 From a precluster a pixel array is built, and its local maxima are used
 to get pads and compute pad center of gravity.

 \author Laurent Aphecetche (for the "new" C++ structure) and
 Alexander Zinchenko, JINR Dubna, for the hardcore of it ;-)

Function Members (Methods)

public:

	AliMUONClusterFinderPeakCOG(Bool_t plot, AliMUONVClusterFinder* clusterFinder)
virtual	~AliMUONClusterFinderPeakCOG()
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 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
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()
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 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	NeedSegmentation() const
virtual AliMUONCluster*	NextCluster()
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 Bool_t	Prepare(Int_t detElemId, TObjArray pads, const AliMpArea& area, const AliMpVSegmentation seg)
virtual void	Print(Option_t* opt = "") 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	AliMUONVClusterFinder::SetChargeHints(Double_t, Double_t)
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&)
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 Bool_t	AliMUONVClusterFinder::UsePad(const AliMUONPad& pad)
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:

	AliMUONClusterFinderPeakCOG(const AliMUONClusterFinderPeakCOG& rhs)
void	BuildPixArray(AliMUONCluster& cluster)
void	BuildPixArrayOneCathode(AliMUONCluster& cluster)
void	CheckOverlaps()
AliMUONCluster*	CheckPrecluster(const AliMUONCluster& cluster)
AliMUONCluster*	CheckPreclusterTwoCathodes(AliMUONCluster* cluster)
void	FindCluster(AliMUONCluster& cluster, const Int_t* localMax, Int_t iMax)
Int_t	FindLocalMaxima(TObjArray* pixArray, Int_t* localMax, Double_t* maxVal)
void	FlagLocalMax(TH2D* hist, Int_t i, Int_t j, Int_t* isLocalMax)
AliMUONClusterFinderPeakCOG&	operator=(const AliMUONClusterFinderPeakCOG& rhs)
Bool_t	Overlap(const AliMUONPad& pad, const AliMUONPad& pixel)
void	PadOverHist(Int_t idir, Int_t ix0, Int_t iy0, AliMUONPad* pad, TH2D* h1, TH2D* h2)
void	PadsInXandY(AliMUONCluster& cluster, Int_t& nInX, Int_t& nInY) const
AliMUONPad*	Pixel(Int_t i) const
void	RemovePixel(Int_t i)
Bool_t	WorkOnPreCluster()

Data Members

public:

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

private:

TObjArray	fClusterList	!< clusters corresponding to the current pre-cluster
Int_t	fClusterNumber	!< current cluster number
Int_t	fDebug	!< debug level
Int_t	fDetElemId	!< current DE being processed
Int_t	fEventNumber	!< current event being processed
TH2D*	fHistAnode	!< histo for peak search
Int_t	fNAddVirtualPads	!< number of clusters for which we added virtual pads
Int_t	fNClusters	!< total number of clusters
TObjArray*	fPixArray	!< collection of pixels
Bool_t	fPlot	!< whether we should plot thing (for debug only, quite slow!)
AliMUONCluster*	fPreCluster	!< current pre-cluster
AliMUONVClusterFinder*	fPreClusterFinder	!< the pre-clustering worker
static const Int_t	fgkCoupled	/< coupled pad
static const TVector2	fgkDecreaseSize	/< idem
static const Double_t	fgkDistancePrecision	/< used to check overlaps and so on
static const TVector2	fgkIncreaseSize	/< idem
static const Int_t	fgkModified	/< modified pad charge
static const Int_t	fgkMustKeep	/< do not kill (for pixels)
static const Int_t	fgkOver	/< processing is over
static const Int_t	fgkUseForFit	/< should be used for fit
static const Int_t	fgkZero	/< pad "basic" state
static const Double_t	fgkZeroSuppression	/< average zero suppression value
const AliMpVSegmentation*	fkSegmentation[2]	!< new segmentation

Class Charts

Inheritance Chart:

TObject

←

AliMUONVClusterFinder

←

AliMUONClusterFinderPeakCOG

Function documentation

AliMUONClusterFinderPeakCOG(Bool_t plot, AliMUONVClusterFinder* clusterFinder)

 Constructor

~AliMUONClusterFinderPeakCOG()

 Destructor

Prepare(Int_t detElemId, TObjArray** pads, const AliMpArea& area, const AliMpVSegmentation** seg)

 Prepare for clustering
  AliCodeTimerAuto("",0)

NextCluster()

 Return next cluster
  AliCodeTimerAuto("",0)

WorkOnPreCluster()

 Starting from a precluster, builds a pixel array, and then
 extract clusters from this array

Overlap(const AliMUONPad& pad, const AliMUONPad& pixel)

 Check if the pad and the pixel overlaps

CheckPrecluster(const AliMUONCluster& cluster)

 Check precluster in order to attempt to simplify it (mostly for
 two-cathode preclusters)

CheckPreclusterTwoCathodes(AliMUONCluster* cluster)

 Check two-cathode cluster

CheckOverlaps()

 For debug only : check if some pixels overlap...

void BuildPixArray(AliMUONCluster& cluster)

 Build pixel array

void BuildPixArrayOneCathode(AliMUONCluster& cluster)

 Build the pixel array

void PadOverHist(Int_t idir, Int_t ix0, Int_t iy0, AliMUONPad* pad, TH2D* h1, TH2D* h2)

 "Span" pad over histogram in the direction idir

Int_t FindLocalMaxima(TObjArray* pixArray, Int_t* localMax, Double_t* maxVal)

 Find local maxima in pixel space

void FlagLocalMax(TH2D* hist, Int_t i, Int_t j, Int_t* isLocalMax)

 Flag pixels (whether or not local maxima)

void FindCluster(AliMUONCluster& cluster, const Int_t* localMax, Int_t iMax)

 Find pixel cluster around local maximum \a iMax and pick up pads
 overlapping with it

operator=(const AliMUONClusterFinderPeakCOG& rhs)

 Protected assignement operator

void PadsInXandY(AliMUONCluster& cluster, Int_t& nInX, Int_t& nInY) const

 Find number of pads in X and Y-directions (excluding virtual ones and
 overflows)

void RemovePixel(Int_t i)

 Remove pixel at index i

Pixel(Int_t i) const

 Returns pixel at index i

Print(Option_t* opt = "") const

 printout

AliMUONClusterFinderPeakCOG(Bool_t plot, AliMUONVClusterFinder* clusterFinder)

Bool_t NeedSegmentation() const

 It needs segmentation

{ return kTRUE; }