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a918d77a | 1 | #ifndef ALIPMDCLUSTERING_H |
2 | #define ALIPMDCLUSTERING_H | |
ed228cbc | 3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
deb0fc73 | 6 | //-----------------------------------------------------// |
7 | // // | |
8 | // Header File : PMDClustering.h, Version 00 // | |
9 | // // | |
10 | // Date : September 26 2002 // | |
11 | // // | |
12 | // clustering code for alice pmd // | |
13 | // // | |
14 | //-----------------------------------------------------// | |
15 | /* | |
16 | -------------------------------------------------------------------- | |
17 | Code developed by S. C. Phatak, Institute of Physics, | |
18 | Bhubaneswar 751 005 ( phatak@iopb.res.in ) Given the energy deposited | |
19 | ( or ADC value ) in each cell of supermodule ( pmd or cpv ), the code | |
20 | builds up superclusters and breaks them into clusters. The input is | |
21 | in array d[ndimx][ndimy] and cluster information is in array | |
22 | clusters[5][5000]. integer clno gives total number of clusters in the | |
23 | supermodule. | |
24 | ||
25 | d, clno and clusters are the only global ( public ) variables. Others | |
26 | are local ( private ) to the code. | |
27 | ||
28 | At the moment, the data is read for whole detector ( all supermodules | |
29 | and pmd as well as cpv. This will have to be modify later ) | |
30 | ||
31 | LAST UPDATE : October 23, 2002 | |
32 | ----------------------------------------------------------------------- | |
33 | */ | |
34 | ||
deb0fc73 | 35 | #include "Rtypes.h" |
36 | ||
37 | class TNtuple; | |
38 | class TObjArray; | |
deb0fc73 | 39 | class AliPMDcluster; |
40 | class AliPMDClustering | |
41 | { | |
a918d77a | 42 | |
43 | public: | |
44 | AliPMDClustering(); | |
45 | virtual ~AliPMDClustering(); | |
46 | ||
47 | void DoClust(Double_t celladc[][96], TObjArray *pmdcont); | |
48 | void Order(); | |
49 | ||
50 | Int_t CrClust(Double_t ave, Double_t cutoff, Int_t nmx1); | |
51 | void RefClust(Int_t incr); | |
52 | void GaussFit(Int_t ncell, Int_t nclust, Double_t &x, | |
53 | Double_t &y, Double_t &z, Double_t &xc, | |
54 | Double_t &yc, Double_t &zc, Double_t &rc); | |
55 | Double_t Distance(Double_t x1, Double_t y1, | |
56 | Double_t x2, Double_t y2); | |
57 | Double_t Ranmar() const; | |
58 | void SetEdepCut(Float_t decut); | |
59 | void SetDebug(Int_t idebug); | |
deb0fc73 | 60 | |
61 | protected: | |
62 | ||
a918d77a | 63 | static const Double_t fgkSqroot3by2; // fgkSqroot3by2 = sqrt(3.)/2. |
a854e5de | 64 | enum { |
a918d77a | 65 | kNMX = 4608, |
66 | kNDIMX = 48, | |
67 | kNDIMY = 96 | |
a854e5de | 68 | }; |
deb0fc73 | 69 | |
70 | /* | |
a918d77a | 71 | kNMX : # of cells in a supermodule |
72 | kNDIMX : maximum number of cells along x direction (origin at one corner) | |
73 | kNDIMY : maximum number of cells along axis at 60 degrees with x axis | |
deb0fc73 | 74 | */ |
75 | ||
a918d77a | 76 | Double_t fEdepCell[kNDIMX][kNDIMY]; //energy(ADC) in each cell of the supermodule |
77 | Double_t fClusters[5][5000]; // Cluster informations | |
78 | Int_t fClno; // number of clusters in a supermodule | |
deb0fc73 | 79 | |
80 | /* | |
deb0fc73 | 81 | clusters[0][i] --- x position of the cluster center |
82 | clusters[1][i] --- y position of the cluster center | |
83 | clusters[2][i] --- total energy in the cluster | |
84 | clusters[3][i] --- number of cells forming the cluster | |
85 | ( possibly fractional ) | |
86 | clusters[4][i] --- cluster radius | |
deb0fc73 | 87 | */ |
88 | ||
a918d77a | 89 | Int_t fIord[2][kNMX]; // ordered list of i and j according to decreasing energy dep. |
90 | Int_t fInfocl[2][kNDIMX][kNDIMY]; // cellwise information on the cluster to which the cell | |
91 | Int_t fInfcl[3][kNMX]; // cluster information [0][i] -- cluster number | |
92 | Double_t fCoord[2][kNDIMX][kNDIMY]; | |
deb0fc73 | 93 | |
94 | /* | |
a918d77a | 95 | fIord --- ordered list of i and j according to decreasing energy dep. |
96 | fInfocl --- cellwise information on the cluster to which the cell | |
deb0fc73 | 97 | belongs and whether it has largest energy dep. or not |
98 | ( now redundant - probably ) | |
a918d77a | 99 | fInfcl --- cluster information [0][i] -- cluster number |
deb0fc73 | 100 | [1][i] -- i of the cell |
101 | [2][i] -- j of the cell | |
102 | coord --- x and y coordinates of center of each cell | |
103 | */ | |
104 | ||
a918d77a | 105 | Int_t fDebug; // Switch for debug (1:Print, 0:Noprint) |
106 | Float_t fCutoff; // Energy(ADC) cutoff per cell before clustering | |
deb0fc73 | 107 | |
a918d77a | 108 | ClassDef(AliPMDClustering,2) // Does clustering for PMD |
deb0fc73 | 109 | }; |
110 | #endif |