[u/mrichter/AliRoot.git] / PHOS / AliPHOSTrackSegmentMakerv1.h

#ifndef ALIPHOSSUBTRACKERV1_H
#define ALIPHOSSUBTRACKERV1_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

///////////////////////////////////////////////////
//  Track Segment Maker class for PHOS           //
//  Version SUBATECH                             //
//  Author Dmitri Peressounko RRC Ki             //
//     comment: finds pairs of clusters EMC+PPSD //  
//              performs unfolding.              //
///////////////////////////////////////////////////

// --- ROOT system ---

// --- Standard library ---

// --- AliRoot header files ---

#include "TObjArray.h"
#include "AliPHOSClusterizer.h"
#include "AliPHOSEmcRecPoint.h"
#include "AliPHOSPpsdRecPoint.h"
#include "AliPHOSTrackSegmentMaker.h"


class  AliPHOSTrackSegmentMakerv1 : public AliPHOSTrackSegmentMaker {

public:

  AliPHOSTrackSegmentMakerv1() ;                     
  virtual ~ AliPHOSTrackSegmentMakerv1(){}  // dtor
  
  Bool_t  FindFit(AliPHOSEmcRecPoint * emcRP, int * MaxAt, Float_t * maxAtEnergy, 
		  Int_t NPar, Float_t * FitParametres) ; //Used in UnfoldClusters, calls TMinuit

  void    FillOneModule(DigitsList * Dl, RecPointsList * emcIn, TObjArray * emcOut, RecPointsList * ppsdIn, 
			TObjArray * ppsdOutUp, TObjArray * ppsdOutLow, Int_t &PHOSModule, Int_t & emcStopedAt, 
			Int_t & ppsdStopedAt) ; // Unfolds clusters and fills temporary arrais   

  Float_t GetDistanceInPHOSPlane(AliPHOSEmcRecPoint * EmcClu , AliPHOSPpsdRecPoint * Ppsd , Bool_t & TooFar ) ; // see R0

  void    MakeLinks(TObjArray * EmcRecPoints, TObjArray * PpsdRecPointsUp, TObjArray * PpsdRecPointsLow, 
		    TClonesArray * LinkLowArray, TClonesArray *LinkUpArray) ; //Evaluates distances(links) between EMC and PPSD

  void    MakePairs(TObjArray * EmcRecPoints, TObjArray * PpsdRecPointsUp, TObjArray * PpsdRecPointsLow, 
		    TClonesArray * LinkLowArray, TClonesArray * LinkUpArray, TrackSegmentsList * trsl) ; 
                    //Finds pairs(triplets) with smallest link

  void    MakeTrackSegments(DigitsList * DL, RecPointsList * emcl, RecPointsList * ppsdl, TrackSegmentsList * trsl ) ; // does the job

  void    SetMaxEmcPpsdDistance(Float_t r){ fR0 = r ;} //Radius within which we look for ppsd cluster

 Double_t ShowerShape(Double_t r) ; //Shape of shower used in unfolding

  void    UnfoldClusters(DigitsList * DL, RecPointsList * emcIn, AliPHOSEmcRecPoint * iniEmc, Int_t Nmax, 
		         int * maxAt, Float_t * maxAtEnergy, TObjArray * emclist) ; //Unfolds overlaping clusters using TMinuit packadge

  void static UnfoldingChiSquare(Int_t &NPar, Double_t *Grad, Double_t & fret, Double_t *x, Int_t iflag); //used in TMinuit


private:

  Float_t fDelta ;  // parameter used for sorting
  Float_t fR0  ;    // Maximal distance between EMC and PPSD clusters of one Track Segment in module plane

public: 

ClassDef( AliPHOSTrackSegmentMakerv1,1)  // track segment maker implementation , version 1

};

#endif // AliPHOSSUBTRACKERV1_H
Commit	Line	Data
d15a28e7	1	#ifndef ALIPHOSSUBTRACKERV1_H
	2	#define ALIPHOSSUBTRACKERV1_H
	3	/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	4	* See cxx source for full Copyright notice */
	5
	6	///////////////////////////////////////////////////
	7	// Track Segment Maker class for PHOS //
	8	// Version SUBATECH //
	9	// Author Dmitri Peressounko RRC Ki //
	10	// comment: finds pairs of clusters EMC+PPSD //
	11	// performs unfolding. //
	12	///////////////////////////////////////////////////
	13
	14	// --- ROOT system ---
	15
	16	// --- Standard library ---
	17
	18	// --- AliRoot header files ---
	19
	20	#include "TObjArray.h"
	21	#include "AliPHOSClusterizer.h"
	22	#include "AliPHOSEmcRecPoint.h"
	23	#include "AliPHOSPpsdRecPoint.h"
	24	#include "AliPHOSTrackSegmentMaker.h"
	25
	26
	27	class AliPHOSTrackSegmentMakerv1 : public AliPHOSTrackSegmentMaker {
	28
	29	public:
	30
	31	AliPHOSTrackSegmentMakerv1() ;
	32	virtual ~ AliPHOSTrackSegmentMakerv1(){} // dtor
	33
	34	Bool_t FindFit(AliPHOSEmcRecPoint * emcRP, int * MaxAt, Float_t * maxAtEnergy,
	35	Int_t NPar, Float_t * FitParametres) ; //Used in UnfoldClusters, calls TMinuit
	36
	37	void FillOneModule(DigitsList * Dl, RecPointsList * emcIn, TObjArray * emcOut, RecPointsList * ppsdIn,
	38	TObjArray * ppsdOutUp, TObjArray * ppsdOutLow, Int_t &PHOSModule, Int_t & emcStopedAt,
	39	Int_t & ppsdStopedAt) ; // Unfolds clusters and fills temporary arrais
	40
	41	Float_t GetDistanceInPHOSPlane(AliPHOSEmcRecPoint * EmcClu , AliPHOSPpsdRecPoint * Ppsd , Bool_t & TooFar ) ; // see R0
	42
	43	void MakeLinks(TObjArray * EmcRecPoints, TObjArray * PpsdRecPointsUp, TObjArray * PpsdRecPointsLow,
	44	TClonesArray * LinkLowArray, TClonesArray *LinkUpArray) ; //Evaluates distances(links) between EMC and PPSD
	45
	46	void MakePairs(TObjArray * EmcRecPoints, TObjArray * PpsdRecPointsUp, TObjArray * PpsdRecPointsLow,
	47	TClonesArray * LinkLowArray, TClonesArray * LinkUpArray, TrackSegmentsList * trsl) ;
	48	//Finds pairs(triplets) with smallest link
	49
	50	void MakeTrackSegments(DigitsList * DL, RecPointsList * emcl, RecPointsList * ppsdl, TrackSegmentsList * trsl ) ; // does the job
	51
	52	void SetMaxEmcPpsdDistance(Float_t r){ fR0 = r ;} //Radius within which we look for ppsd cluster
	53
	54	Double_t ShowerShape(Double_t r) ; //Shape of shower used in unfolding
	55
	56	void UnfoldClusters(DigitsList * DL, RecPointsList * emcIn, AliPHOSEmcRecPoint * iniEmc, Int_t Nmax,
	57	int * maxAt, Float_t * maxAtEnergy, TObjArray * emclist) ; //Unfolds overlaping clusters using TMinuit packadge
	58
	59	void static UnfoldingChiSquare(Int_t &NPar, Double_t Grad, Double_t & fret, Double_t x, Int_t iflag); //used in TMinuit
	60
	61
	62	private:
	63
	64	Float_t fDelta ; // parameter used for sorting
65	Float_t fR0 ; // Maximal distance between EMC and PPSD clusters of one Track Segment in module plane
66
67	public:
68
69	ClassDef( AliPHOSTrackSegmentMakerv1,1) // track segment maker implementation , version 1
70
71	};
72
73	#endif // AliPHOSSUBTRACKERV1_H