[u/mrichter/AliRoot.git] / ITS / AliITSClusterFinderSSD.h

#ifndef ALIITSCLUSTERFINDERSSD_H
#define ALIITSCLUSTERFINDERSSD_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

//#include <TMath.h>
#include "AliITSClusterFinder.h"
//#include "AliITSsegmentationSSD.h"

class TArrayI;
class AliITSclusterSSD;
class AliITSpackageSSD;
class AliITSsegmentation;
class AliITSsegmentationSSD;
class AliITSresponse;
class AliITSresponseSSD;

class AliITSClusterFinderSSD: public AliITSClusterFinder{
  public:
    AliITSClusterFinderSSD();
    AliITSClusterFinderSSD(AliITSsegmentation *seg,AliITSresponse *resp);
    AliITSClusterFinderSSD(AliITSsegmentation *seg, TClonesArray *digits);
    virtual ~AliITSClusterFinderSSD();
    void FindRawClusters(Int_t module);

  protected:
    virtual AliITSresponseSSD* GetResp()const{
        return (AliITSresponseSSD*) GetResponse();}//Return Response
    //Returns fSegmentation
    virtual AliITSsegmentationSSD* GetSeg()const{
        return (AliITSsegmentationSSD*)GetSegmentation();} 
    void      InitReconstruction();
    Bool_t    CreateNewRecPoint(Double_t P,Double_t dP,Double_t N,Double_t dN,
                                Double_t Sig,Double_t dSig,
                                AliITSclusterSSD *clusterP,
                                AliITSclusterSSD *clusterN,Stat_t prob);
    AliITSclusterSSD* GetPSideCluster(Int_t idx);
    AliITSclusterSSD* GetNSideCluster(Int_t idx);
    AliITSclusterSSD* GetCluster(Int_t idx, Bool_t side){
    return (side) ? GetPSideCluster(idx) : GetNSideCluster(idx);};
    void   FindNeighbouringDigits();
    void   SeparateOverlappedClusters();
    void   SplitCluster(TArrayI *list,Int_t nsplits,Int_t indx,Bool_t side);
    Int_t  SortDigitsP(Int_t start, Int_t end);
    Int_t  SortDigitsN(Int_t start, Int_t end);
    void   FillDigitsIndex();
    void   SortDigits();
    void   FillClIndexArrays(Int_t* arrayP, Int_t *arrayN) const;
    void   SortClusters(Int_t* arrayP, Int_t *arrayN);
    Int_t  SortClustersP(Int_t start, Int_t end,Int_t *array);
    Int_t  SortClustersN(Int_t start, Int_t end,Int_t *array);
    void   ClustersToPackages();
    Int_t  GetDiff(Double_t */*retx*/, Double_t */*rety*/) const {return 0;}
    void   CalcStepFactor(Double_t Psteo, Double_t Nsteo );
    Bool_t GetCrossing(Double_t &x, Double_t &z); //x, y of strips crossing
    //x, y of strips crossing err.
    void   GetCrossingError(Double_t& dp, Double_t& dn);

    // Data memebers
    AliITS          *fITS;           //!Pointer to AliITS object
    TClonesArray    *fClusterP;      //!
    Int_t            fNClusterP;     //!Number of P side clusters in the array
    TClonesArray    *fClusterN;      //!Number of N side clusters in the array
    Int_t            fNClusterN;     //!
    TClonesArray    *fPackages;      //!packages  
    Int_t            fNPackages;     //!
    TArrayI         *fDigitsIndexP;  //!Digits on P side
    Int_t            fNDigitsP;      //!Number of Digits on P side
    TArrayI         *fDigitsIndexN;  //!Digits on N side
    Int_t            fNDigitsN;      //!Number of Digits on N side

    Double_t          fPitch;         //!Strip pitch
    Double_t          fTanP;          //!Pside stereo angle tangent
    Double_t          fTanN;          //!Nside stereo angle tangent

/*************************************************/
/**  parameters for reconstruction            ****/
/**  to be tune when slow simulation raliable ****/
/*************************************************/

    //Double_t fAlpha1;         //!
    //Double_t fAlpha2;         //!
    //Double_t fAlpha3;         //!
    Double_t fPNsignalRatio;  //!
    
    static const Bool_t fgkSIDEP;  //!
    static const Bool_t fgkSIDEN;  //!

    Int_t fSFF;              //!forward stepping factor 
    Int_t fSFB;              //!backward stepping factor 

    ClassDef(AliITSClusterFinderSSD,1) //Class for clustering and reconstruction of space points in SSDs 

};


#endif
Commit	Line	Data
b0f5e3fc	1	#ifndef ALIITSCLUSTERFINDERSSD_H
	2	#define ALIITSCLUSTERFINDERSSD_H
	3	/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	4	* See cxx source for full Copyright notice */
	5
aacedc3e	6	//#include <TMath.h>
b0f5e3fc	7	#include "AliITSClusterFinder.h"
aacedc3e	8	//#include "AliITSsegmentationSSD.h"
b0f5e3fc	9
eb08b98f	10	class TArrayI;
e8189707	11	class AliITSclusterSSD;
e8189707	12	class AliITSpackageSSD;
aacedc3e	13	class AliITSsegmentation;
	14	class AliITSsegmentationSSD;
	15	class AliITSresponse;
	16	class AliITSresponseSSD;
e8189707	17
fe15e140	18	class AliITSClusterFinderSSD: public AliITSClusterFinder{
aacedc3e	19	public:
fe15e140	20	AliITSClusterFinderSSD();
aacedc3e	21	AliITSClusterFinderSSD(AliITSsegmentation seg,AliITSresponse resp);
fe15e140	22	AliITSClusterFinderSSD(AliITSsegmentation seg, TClonesArray digits);
fe15e140	23	virtual ~AliITSClusterFinderSSD();
aacedc3e	24	void FindRawClusters(Int_t module);
b0f5e3fc	25
aacedc3e	26	protected:
	27	virtual AliITSresponseSSD* GetResp()const{
	28	return (AliITSresponseSSD*) GetResponse();}//Return Response
	29	//Returns fSegmentation
	30	virtual AliITSsegmentationSSD* GetSeg()const{
	31	return (AliITSsegmentationSSD*)GetSegmentation();}
fe15e140	32	void InitReconstruction();
aacedc3e	33	Bool_t CreateNewRecPoint(Double_t P,Double_t dP,Double_t N,Double_t dN,
	34	Double_t Sig,Double_t dSig,
	35	AliITSclusterSSD *clusterP,
	36	AliITSclusterSSD *clusterN,Stat_t prob);
fe15e140	37	AliITSclusterSSD* GetPSideCluster(Int_t idx);
fe15e140	38	AliITSclusterSSD* GetNSideCluster(Int_t idx);
aacedc3e	39	AliITSclusterSSD* GetCluster(Int_t idx, Bool_t side){
	40	return (side) ? GetPSideCluster(idx) : GetNSideCluster(idx);};
	41	void FindNeighbouringDigits();
	42	void SeparateOverlappedClusters();
	43	void SplitCluster(TArrayI *list,Int_t nsplits,Int_t indx,Bool_t side);
	44	Int_t SortDigitsP(Int_t start, Int_t end);
	45	Int_t SortDigitsN(Int_t start, Int_t end);
	46	void FillDigitsIndex();
	47	void SortDigits();
	48	void FillClIndexArrays(Int_t* arrayP, Int_t *arrayN) const;
	49	void SortClusters(Int_t* arrayP, Int_t *arrayN);
	50	Int_t SortClustersP(Int_t start, Int_t end,Int_t *array);
	51	Int_t SortClustersN(Int_t start, Int_t end,Int_t *array);
	52	void ClustersToPackages();
	53	Int_t GetDiff(Double_t /retx/, Double_t /rety/) const {return 0;}
	54	void CalcStepFactor(Double_t Psteo, Double_t Nsteo );
	55	Bool_t GetCrossing(Double_t &x, Double_t &z); //x, y of strips crossing
	56	//x, y of strips crossing err.
	57	void GetCrossingError(Double_t& dp, Double_t& dn);
fe15e140	58
	59	// Data memebers
	60	AliITS *fITS; //!Pointer to AliITS object
	61	TClonesArray *fClusterP; //!
	62	Int_t fNClusterP; //!Number of P side clusters in the array
	63	TClonesArray *fClusterN; //!Number of N side clusters in the array
	64	Int_t fNClusterN; //!
	65	TClonesArray *fPackages; //!packages
	66	Int_t fNPackages; //!
	67	TArrayI *fDigitsIndexP; //!Digits on P side
	68	Int_t fNDigitsP; //!Number of Digits on P side
	69	TArrayI *fDigitsIndexN; //!Digits on N side
	70	Int_t fNDigitsN; //!Number of Digits on N side
	71
aacedc3e	72	Double_t fPitch; //!Strip pitch
	73	Double_t fTanP; //!Pside stereo angle tangent
	74	Double_t fTanN; //!Nside stereo angle tangent
b0f5e3fc	75
	76	/*************************************************/
	77	/ parameters for reconstruction **/
	78	/ to be tune when slow simulation raliable **/
fe15e140	79	/*************************************************/
e8189707	80
aacedc3e	81	//Double_t fAlpha1; //!
	82	//Double_t fAlpha2; //!
	83	//Double_t fAlpha3; //!
	84	Double_t fPNsignalRatio; //!
b0f5e3fc	85
fe15e140	86	static const Bool_t fgkSIDEP; //!
fe15e140	87	static const Bool_t fgkSIDEN; //!
be33dccb	88
fe15e140	89	Int_t fSFF; //!forward stepping factor
fe15e140	90	Int_t fSFB; //!backward stepping factor
b0f5e3fc	91
aacedc3e	92	ClassDef(AliITSClusterFinderSSD,1) //Class for clustering and reconstruction of space points in SSDs
b0f5e3fc	93
	94	};
	95
	96
	97	#endif