new design: derived from TTask
[u/mrichter/AliRoot.git] / PHOS / AliPHOSTrackSegmentMakerv1.h
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6ad0bfa0 1#ifndef ALIPHOSTRACKSEGMENTMAKERV1_H
2#define ALIPHOSTRACKSEGMENTMAKERV1_H
d15a28e7 3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
6ad0bfa0 6/* $Id$ */
7
b2a60966 8//_________________________________________________________________________
9// Implementation version 1 of algorithm class to construct PHOS track segments
10// Associates EMC and PPSD clusters
11// Unfolds the EMC cluster
12//
13//*-- Author: Dmitri Peressounko (RRC Ki & SUBATECH)
d15a28e7 14
15// --- ROOT system ---
16
17// --- Standard library ---
18
19// --- AliRoot header files ---
20
21#include "TObjArray.h"
22#include "AliPHOSClusterizer.h"
23#include "AliPHOSEmcRecPoint.h"
24#include "AliPHOSPpsdRecPoint.h"
25#include "AliPHOSTrackSegmentMaker.h"
9f616d61 26#include "TMinuit.h"
d15a28e7 27
28class AliPHOSTrackSegmentMakerv1 : public AliPHOSTrackSegmentMaker {
29
30public:
31
32 AliPHOSTrackSegmentMakerv1() ;
839ffcb3 33 AliPHOSTrackSegmentMakerv1(const AliPHOSTrackSegmentMakerv1 & tsm) {
34 // cpy ctor: no implementation yet
35 // requested by the Coding Convention
36 assert(0==1) ;
37 }
38
9f616d61 39 virtual ~ AliPHOSTrackSegmentMakerv1() ; // dtor
d15a28e7 40
41 Bool_t FindFit(AliPHOSEmcRecPoint * emcRP, int * MaxAt, Float_t * maxAtEnergy,
42 Int_t NPar, Float_t * FitParametres) ; //Used in UnfoldClusters, calls TMinuit
98cbd830 43 void FillOneModule(AliPHOSRecPoint::RecPointsList * emcIn,
28c3a259 44 TArrayI * emcOut,
88714635 45 AliPHOSRecPoint::RecPointsList * ppsdIn,
28c3a259 46 TArrayI * ppsdOutUp,
47 TArrayI * ppsdOutLow,
88714635 48 Int_t &PHOSModule,
49 Int_t & emcStopedAt,
69183710 50 Int_t & ppsdStopedAt) ; // Fills temporary arrais with clusters from one module
d15a28e7 51 Float_t GetDistanceInPHOSPlane(AliPHOSEmcRecPoint * EmcClu , AliPHOSPpsdRecPoint * Ppsd , Bool_t & TooFar ) ; // see R0
52
28c3a259 53 void MakeLinks(TArrayI * EmcRecPoints, TArrayI * PpsdRecPointsUp, TArrayI * PpsdRecPointsLow,
d15a28e7 54 TClonesArray * LinkLowArray, TClonesArray *LinkUpArray) ; //Evaluates distances(links) between EMC and PPSD
28c3a259 55 void MakePairs(TArrayI * EmcRecPoints,
56 TArrayI * PpsdRecPointsUp,
57 TArrayI * PpsdRecPointsLow,
88714635 58 TClonesArray * LinkLowArray,
59 TClonesArray * LinkUpArray,
60 AliPHOSTrackSegment::TrackSegmentsList * trsl) ; //Finds pairs(triplets) with smallest link
61 void MakeTrackSegments(DigitsList * DL,
62 AliPHOSRecPoint::RecPointsList * emcl,
63 AliPHOSRecPoint::RecPointsList * ppsdl,
64 AliPHOSTrackSegment::TrackSegmentsList * trsl ) ; // does the job
d912c4d7 65 virtual void SetMaxEmcPpsdDistance(Float_t r){ fR0 = r ;}
6727be7e 66 virtual void SetUnfoldFlag() { fUnfoldFlag = kTRUE ; } ;
9f616d61 67 static Double_t ShowerShape(Double_t r) ; // Shape of shower used in unfolding; class member function (not object member function)
98cbd830 68 void UnfoldAll(DigitsList * Dl, AliPHOSRecPoint::RecPointsList * emcIn) ;
69183710 69 // Unfolds and sorts all EMC clusters
88714635 70 void UnfoldClusters(DigitsList * DL,
71 AliPHOSRecPoint::RecPointsList * emcIn,
72 AliPHOSEmcRecPoint * iniEmc,
73 Int_t Nmax,
74 int * maxAt,
98cbd830 75 Float_t * maxAtEnergy ) ; //Unfolds overlaping clusters using TMinuit package
d912c4d7 76 virtual void UnsetUnfoldFlag() { fUnfoldFlag = kFALSE ; }
d15a28e7 77
2f04ed65 78 AliPHOSTrackSegmentMakerv1 & operator = (const AliPHOSTrackSegmentMakerv1 & ) {
839ffcb3 79 // assignement operator requested by coding convention
80 // but not needed
81 assert(0==1) ;
82 return *this ;
83 }
84
d15a28e7 85private:
86
b2a60966 87 Float_t fDelta ; // parameter used for sorting
b2a60966 88 Float_t fR0 ; // Maximum distance between a EMC RecPoint and a PPSD RecPoint
89 Bool_t fUnfoldFlag ; // Directive to unfold or not the clusters in case of multiple maxima
d15a28e7 90
b2a60966 91 ClassDef( AliPHOSTrackSegmentMakerv1,1) // Implementation version 1 of algorithm class to make PHOS track segments
d15a28e7 92
93};
94
6ad0bfa0 95#endif // AliPHOSTRACKSEGMENTMAKERV1_H