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0df3ca52 | 1 | #ifndef ALIMUONCLUSTERFINDERAZ_H |
2 | #define ALIMUONCLUSTERFINDERAZ_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
30178c30 | 6 | /* $Id$ */ |
30178c30 | 7 | |
692de412 | 8 | /// \ingroup rec |
9 | /// \class AliMUONClusterFinderAZ | |
10 | /// \brief Cluster finder in MUON arm of ALICE | |
585d648a | 11 | /// |
12 | /// \author Alexander Zinchenko, JINR Dubna | |
692de412 | 13 | |
0df3ca52 | 14 | class TH2D; |
15 | class TClonesArray; | |
0df3ca52 | 16 | class TMinuit; |
0df3ca52 | 17 | |
0627f609 | 18 | class AliMUONVGeometryDESegmentation; |
30178c30 | 19 | class AliMUONPixel; |
1af223d7 | 20 | class AliMUONClusterDrawAZ; |
243b68c3 | 21 | #include "AliMUONClusterFinderVS.h" |
e785d2ac | 22 | #include "TMatrixDfwd.h" |
0df3ca52 | 23 | |
30178c30 | 24 | class AliMUONClusterFinderAZ : public AliMUONClusterFinderVS |
25 | { | |
26 | public: | |
1af223d7 | 27 | AliMUONClusterFinderAZ(Bool_t draw = 0); // Constructor |
0df3ca52 | 28 | virtual ~AliMUONClusterFinderAZ(); // Destructor |
29 | ||
9e993f2a | 30 | void FindRawClusters(); // the same interface as for old cluster finder |
1af223d7 | 31 | void EventLoop(Int_t nev = 0, Int_t ch = 0); // first event |
30178c30 | 32 | Bool_t TestTrack(Int_t t) const; // test if track was selected |
1af223d7 | 33 | Int_t GetNPads(Int_t cath) const { return fnPads[cath]; } |
34 | Int_t GetIJ(Int_t indx, Int_t iPad) const { return fPadIJ[indx][iPad]; } | |
35 | Float_t GetXyq(Int_t indx, Int_t iPad) const { return fXyq[indx][iPad]; } | |
85fec35d | 36 | Float_t GetZpad() const { return fZpad; } |
cc87ebcd | 37 | Bool_t GetUsed(Int_t cath, Int_t dig) const { return fUsed[cath][dig]; } |
38 | void SetUsed(Int_t cath, Int_t dig) { fUsed[cath][dig] = kTRUE; } // mark used digits | |
39 | void SetUnused(Int_t cath, Int_t dig) { fUsed[cath][dig] = kFALSE; } // unmark digits | |
40 | void SetReco(Int_t iReco) { fReco = iReco; } // set reco flag | |
41 | void SetStart(Int_t iCath, Int_t iPad) { fCathBeg = iCath; fPadBeg[0] = fPadBeg[1] = 0; fPadBeg[fCathBeg] = iPad; } // start | |
9e993f2a | 42 | |
54d7ba50 | 43 | private: |
343146bf | 44 | // Some constants |
829425a5 | 45 | static const Int_t fgkDim = 10000; ///< array size |
46 | static const Double_t fgkCouplMin; ///< threshold on coupling | |
47 | static const Double_t fgkZeroSuppression; ///< average zero suppression value | |
48 | static const Double_t fgkSaturation; ///< average saturation level | |
343146bf | 49 | |
829425a5 | 50 | static AliMUONClusterFinderAZ* fgClusterFinder; ///< the ClusterFinderAZ instance |
9e993f2a | 51 | |
829425a5 | 52 | Int_t fnPads[2]; //!< number of pads in the cluster on 2 cathodes |
53 | Float_t fXyq[7][fgkDim]; //!< pad information | |
54 | Int_t fPadIJ[4][fgkDim]; //!< pad information | |
55 | AliMUONVGeometryDESegmentation *fSegmentation[2]; //!< new segmentation | |
56 | Float_t fZpad; //!< z-coordinate of the hit | |
57 | Int_t fNpar; //!< number of fit parameters | |
58 | Double_t fQtot; //!< total cluster charge | |
59 | Int_t fReco; //!< !=0 if run reco with writing of reconstructed clusters | |
60 | Int_t fCathBeg; //!< starting cathode (for combined cluster / track reco) | |
61 | Int_t fPadBeg[2]; //!< starting pads (for combined cluster / track reco) | |
9e993f2a | 62 | |
829425a5 | 63 | static TMinuit* fgMinuit; //!< Fitter |
64 | Bool_t fUsed[2][fgkDim]; //!< flags for used pads | |
65 | AliMUONClusterDrawAZ *fDraw; //!< drawing object | |
66 | TObjArray* fPixArray; //!< collection of pixels | |
67 | Int_t fnCoupled; //!< number of coupled clusters in precluster | |
68 | Int_t fDebug; //!< debug level | |
0df3ca52 | 69 | |
70 | // Functions | |
71 | ||
54d7ba50 | 72 | AliMUONClusterFinderAZ(const AliMUONClusterFinderAZ& rhs); |
73 | AliMUONClusterFinderAZ& operator=(const AliMUONClusterFinderAZ& rhs); | |
9e993f2a | 74 | void AddPad(Int_t cath, Int_t digit); // add a pad to the cluster |
2b1e4f0e | 75 | Bool_t Overlap(Int_t cath, AliMUONDigit *dig); // check if the pad from one cathode overlaps with a pad in the cluster on the other cathode |
0df3ca52 | 76 | Bool_t Overlap(Float_t *xy1, Int_t iPad, Float_t *xy12, Int_t iSkip); // check if pads xy1 and iPad overlap and return overlap area |
77 | Bool_t CheckPrecluster(Int_t *nShown); // check precluster to simplify it (if possible) | |
9e993f2a | 78 | void BuildPixArray(); // build array of pixels |
2b1e4f0e | 79 | void AdjustPixel(Float_t width, Int_t ixy); // adjust size of small pixels |
80 | void AdjustPixel(Float_t wxmin, Float_t wymin); // adjust size of large pixels | |
81 | Bool_t MainLoop(Int_t iSimple); // repeat MLEM algorithm until pixels become sufficiently small | |
82 | void Mlem(Double_t *coef, Double_t *probi, Int_t nIter); // use MLEM for cluster finding | |
9e993f2a | 83 | void FindCOG(TH2D *mlem, Double_t *xyc); // find COG position around maximum bin |
84 | Int_t FindNearest(AliMUONPixel *pixPtr0); // find nearest neighbouring pixel to the given one | |
85 | void Split(TH2D *mlem, Double_t *coef); // steering function for pixels | |
86 | void AddBin(TH2D *mlem, Int_t ic, Int_t jc, Int_t mode, Bool_t* used, TObjArray *pix); // add a bin to the cluster | |
0df3ca52 | 87 | TObject* BinToPix(TH2D *mlem, Int_t jc, Int_t ic); // hist. bin-to-pixel |
9e993f2a | 88 | void AddCluster(Int_t ic, Int_t nclust, TMatrixD *aijcluclu, Bool_t *used, Int_t *clustNumb, Int_t &nCoupled); // add a cluster to the group of coupled clusters |
c1aed84f | 89 | Double_t MinGroupCoupl(Int_t nCoupled, Int_t *clustNumb, TMatrixD *aijcluclu, Int_t *minGroup); // find group of cluster with min. coupling to others |
9e993f2a | 90 | Int_t SelectPad(Int_t nCoupled, Int_t nForFit, Int_t *clustNumb, Int_t *clustFit, TMatrixD *aijcluclu); //select pads for fit |
91 | void Merge(Int_t nForFit, Int_t nCoupled, Int_t *clustNumb, Int_t *clustFit, TObjArray **clusters, TMatrixD *aijcluclu, TMatrixD *aijclupad); // merge clusters | |
0627f609 | 92 | Int_t Fit(Int_t iSimple, Int_t nfit, Int_t *clustFit, TObjArray **clusters, Double_t *parOk); // do the fitting |
9e993f2a | 93 | void UpdatePads(Int_t nfit, Double_t *par); // subtract fitted charges from pads |
2b1e4f0e | 94 | void AddRawCluster(Double_t x, Double_t y, Double_t qTot, Double_t fmin, Int_t nfit, Int_t *tracks, Double_t sigx, Double_t sigy, Double_t dist); // add new reconstructed cluster |
0627f609 | 95 | Int_t FindLocalMaxima(TObjArray *pixArray, Int_t *localMax, Double_t *maxVal); // find local maxima |
9e993f2a | 96 | void FlagLocalMax(TH2D *hist, Int_t i, Int_t j, Int_t *isLocalMax); // flag local max |
97 | void FindCluster(Int_t *localMax, Int_t iMax); // find cluster around local max | |
2b1e4f0e | 98 | void AddVirtualPad(); // add virtual pads for some clusters (if necessary) |
99 | void PadsInXandY(Int_t &nInX, Int_t &nInY); // get number of pads in X and Y | |
100 | // This function is used for fitting | |
101 | void Fcn1(Int_t &npar, Double_t *gin, Double_t &f, Double_t *par, Int_t iflag); | |
102 | void Simple(); // process simple cluster | |
103 | ||
104 | void Errors(AliMUONRawCluster *clus); // correct coordinates and eval. errors | |
105 | void Errors(Int_t ny, Int_t nx, Int_t iby, Int_t ibx, Double_t fmin, | |
106 | Double_t wy, Double_t wx, Int_t iover, | |
107 | Double_t dyc, Double_t dxc, Double_t qtot, | |
108 | Double_t &yrec, Double_t &xrec, Double_t &erry, Double_t &errx); | |
f161a467 | 109 | |
2b1e4f0e | 110 | // Dummy methods for overloading warnings |
f161a467 | 111 | void FindCluster(int, int, int, AliMUONRawCluster&) {return;} |
112 | void FindLocalMaxima(AliMUONRawCluster*) {return;} | |
113 | void Split(AliMUONRawCluster*) {return;} | |
9a8c01b2 | 114 | void AddRawCluster(AliMUONRawCluster&) {return;} |
f161a467 | 115 | |
2b1e4f0e | 116 | ClassDef(AliMUONClusterFinderAZ,0) // cluster finder in MUON arm of ALICE |
74f7bbc5 | 117 | }; |
118 | ||
0df3ca52 | 119 | #endif |