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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 | /* $Id$ */ |
7 | // Revision of includes 07/05/2004 | |
8 | ||
692de412 | 9 | /// \ingroup rec |
10 | /// \class AliMUONClusterFinderAZ | |
11 | /// \brief Cluster finder in MUON arm of ALICE | |
12 | ||
30178c30 | 13 | #include "AliMUONClusterFinderVS.h" |
14 | ||
0df3ca52 | 15 | class TH2D; |
16 | class TClonesArray; | |
0df3ca52 | 17 | class TMinuit; |
18 | class TMatrixD; | |
0df3ca52 | 19 | |
30178c30 | 20 | class AliSegmentation; |
21 | class AliMUONResponse; | |
22 | class AliMUONPixel; | |
1af223d7 | 23 | class AliMUONClusterDrawAZ; |
0df3ca52 | 24 | |
30178c30 | 25 | class AliMUONClusterFinderAZ : public AliMUONClusterFinderVS |
26 | { | |
27 | public: | |
1af223d7 | 28 | AliMUONClusterFinderAZ(Bool_t draw = 0); // Constructor |
0df3ca52 | 29 | virtual ~AliMUONClusterFinderAZ(); // Destructor |
30 | ||
9e993f2a | 31 | void FindRawClusters(); // the same interface as for old cluster finder |
1af223d7 | 32 | void EventLoop(Int_t nev = 0, Int_t ch = 0); // first event |
30178c30 | 33 | Bool_t TestTrack(Int_t t) const; // test if track was selected |
1af223d7 | 34 | Int_t GetNPads(Int_t cath) const { return fnPads[cath]; } |
35 | Int_t GetIJ(Int_t indx, Int_t iPad) const { return fPadIJ[indx][iPad]; } | |
36 | Float_t GetXyq(Int_t indx, Int_t iPad) const { return fXyq[indx][iPad]; } | |
37 | Float_t GetZpad() { return fZpad; } | |
9e993f2a | 38 | |
39 | protected: | |
74f7bbc5 | 40 | AliMUONClusterFinderAZ(const AliMUONClusterFinderAZ& rhs); |
41 | AliMUONClusterFinderAZ& operator=(const AliMUONClusterFinderAZ& rhs); | |
0df3ca52 | 42 | |
43 | private: | |
343146bf | 44 | // Some constants |
2b1e4f0e | 45 | static const Int_t fgkDim = 10000; // array size |
343146bf | 46 | static const Double_t fgkCouplMin; // threshold on coupling |
47 | ||
74f7bbc5 | 48 | static AliMUONClusterFinderAZ* fgClusterFinder; // the ClusterFinderAZ instance |
9e993f2a | 49 | |
50 | Int_t fnPads[2]; // ! number of pads in the cluster on 2 cathodes | |
2b1e4f0e | 51 | Float_t fXyq[7][fgkDim]; // ! pad information |
343146bf | 52 | Int_t fPadIJ[2][fgkDim]; // ! pad information |
2b1e4f0e | 53 | AliMUONGeometrySegmentation *fSegmentation[2]; // ! new segmentation |
9e993f2a | 54 | AliMUONResponse *fResponse;// ! response |
55 | Float_t fZpad; // ! z-coordinate of the hit | |
56 | Int_t fNpar; // ! number of fit parameters | |
57 | Double_t fQtot; // ! total cluster charge | |
2b1e4f0e | 58 | Int_t fReco; // ! =1 if run reco with writing of reconstructed clusters |
9e993f2a | 59 | |
60 | static TMinuit* fgMinuit; // ! Fitter | |
343146bf | 61 | Bool_t fUsed[2][fgkDim]; // ! flags for used pads |
1af223d7 | 62 | AliMUONClusterDrawAZ *fDraw; // ! drawing object |
2b1e4f0e | 63 | TObjArray* fPixArray; // ! collection of pixels |
64 | Int_t fnCoupled; // ! number of coupled clusters in precluster | |
65 | Int_t fDebug; // ! debug level | |
0df3ca52 | 66 | |
67 | // Functions | |
68 | ||
9e993f2a | 69 | void AddPad(Int_t cath, Int_t digit); // add a pad to the cluster |
2b1e4f0e | 70 | 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 | 71 | 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 |
72 | Bool_t CheckPrecluster(Int_t *nShown); // check precluster to simplify it (if possible) | |
9e993f2a | 73 | void BuildPixArray(); // build array of pixels |
2b1e4f0e | 74 | void AdjustPixel(Float_t width, Int_t ixy); // adjust size of small pixels |
75 | void AdjustPixel(Float_t wxmin, Float_t wymin); // adjust size of large pixels | |
76 | Bool_t MainLoop(Int_t iSimple); // repeat MLEM algorithm until pixels become sufficiently small | |
77 | void Mlem(Double_t *coef, Double_t *probi, Int_t nIter); // use MLEM for cluster finding | |
9e993f2a | 78 | void FindCOG(TH2D *mlem, Double_t *xyc); // find COG position around maximum bin |
79 | Int_t FindNearest(AliMUONPixel *pixPtr0); // find nearest neighbouring pixel to the given one | |
80 | void Split(TH2D *mlem, Double_t *coef); // steering function for pixels | |
81 | 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 | 82 | TObject* BinToPix(TH2D *mlem, Int_t jc, Int_t ic); // hist. bin-to-pixel |
9e993f2a | 83 | 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 | 84 | Double_t MinGroupCoupl(Int_t nCoupled, Int_t *clustNumb, TMatrixD *aijcluclu, Int_t *minGroup); // find group of cluster with min. coupling to others |
9e993f2a | 85 | Int_t SelectPad(Int_t nCoupled, Int_t nForFit, Int_t *clustNumb, Int_t *clustFit, TMatrixD *aijcluclu); //select pads for fit |
86 | void Merge(Int_t nForFit, Int_t nCoupled, Int_t *clustNumb, Int_t *clustFit, TObjArray **clusters, TMatrixD *aijcluclu, TMatrixD *aijclupad); // merge clusters | |
87 | Int_t Fit(Int_t nfit, Int_t *clustFit, TObjArray **clusters, Double_t *parOk); // do the fitting | |
88 | void UpdatePads(Int_t nfit, Double_t *par); // subtract fitted charges from pads | |
2b1e4f0e | 89 | 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 |
0df3ca52 | 90 | Int_t FindLocalMaxima(Int_t *localMax, Double_t *maxVal); // find local maxima |
9e993f2a | 91 | void FlagLocalMax(TH2D *hist, Int_t i, Int_t j, Int_t *isLocalMax); // flag local max |
92 | void FindCluster(Int_t *localMax, Int_t iMax); // find cluster around local max | |
2b1e4f0e | 93 | void AddVirtualPad(); // add virtual pads for some clusters (if necessary) |
94 | void PadsInXandY(Int_t &nInX, Int_t &nInY); // get number of pads in X and Y | |
95 | // This function is used for fitting | |
96 | void Fcn1(Int_t &npar, Double_t *gin, Double_t &f, Double_t *par, Int_t iflag); | |
97 | void Simple(); // process simple cluster | |
98 | ||
99 | void Errors(AliMUONRawCluster *clus); // correct coordinates and eval. errors | |
100 | void Errors(Int_t ny, Int_t nx, Int_t iby, Int_t ibx, Double_t fmin, | |
101 | Double_t wy, Double_t wx, Int_t iover, | |
102 | Double_t dyc, Double_t dxc, Double_t qtot, | |
103 | Double_t &yrec, Double_t &xrec, Double_t &erry, Double_t &errx); | |
f161a467 | 104 | |
2b1e4f0e | 105 | // Dummy methods for overloading warnings |
f161a467 | 106 | void FindCluster(int, int, int, AliMUONRawCluster&) {return;} |
107 | void FindLocalMaxima(AliMUONRawCluster*) {return;} | |
108 | void Split(AliMUONRawCluster*) {return;} | |
9a8c01b2 | 109 | void AddRawCluster(AliMUONRawCluster&) {return;} |
f161a467 | 110 | |
2b1e4f0e | 111 | ClassDef(AliMUONClusterFinderAZ,0) // cluster finder in MUON arm of ALICE |
74f7bbc5 | 112 | }; |
113 | ||
0df3ca52 | 114 | #endif |