1 #ifndef ALIPMDCLUSTERINGV1_H
2 #define ALIPMDCLUSTERINGV1_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5 //-----------------------------------------------------//
7 // Header File : PMDClusteringV1.h, Version 00 //
9 // Date : September 26 2002 //
11 // clustering code for alice pmd //
13 //-----------------------------------------------------//
14 /* --------------------------------------------------------------------
15 Code developed by S. C. Phatak, Institute of Physics,
16 Bhubaneswar 751 005 ( phatak@iopb.res.in ) Given the energy deposited
17 ( or ADC value ) in each cell of supermodule ( pmd or cpv ), the code
18 builds up superclusters and breaks them into clusters. The input is
19 in array d[ndimx][ndimy] and cluster information is in array
20 clusters[5][5000]. integer clno gives total number of clusters in the
22 d, clno and clusters are the only global ( public ) variables. Others
23 are local ( private ) to the code.
24 At the moment, the data is read for whole detector ( all supermodules
25 and pmd as well as cpv. This will have to be modify later )
26 LAST UPDATE : October 23, 2002
27 -----------------------------------------------------------------------*/
29 #include "AliPMDClustering.h"
35 class AliPMDClusteringV1: public AliPMDClustering
40 virtual ~AliPMDClusteringV1();
42 void DoClust(Int_t idet, Int_t ismn, Double_t celladc[][96],
46 Int_t CrClust(Double_t ave, Double_t cutoff, Int_t nmx1);
47 void RefClust(Int_t incr);
48 void GaussFit(Int_t ncell, Int_t nclust, Double_t &x,
49 Double_t &y, Double_t &z, Double_t &xc,
50 Double_t &yc, Double_t &zc, Double_t &rc);
51 Double_t Distance(Double_t x1, Double_t y1,
52 Double_t x2, Double_t y2);
53 Double_t Ranmar() const;
54 void SetEdepCut(Float_t decut);
58 static const Double_t fgkSqroot3by2; // fgkSqroot3by2 = sqrt(3.)/2.
67 kNMX : # of cells in a supermodule
68 kNDIMX : maximum number of cells along x direction (origin at one corner)
69 kNDIMY : maximum number of cells along axis at 60 degrees with x axis
72 Double_t fEdepCell[kNDIMX][kNDIMY]; //energy(ADC) in each cell
73 Double_t fClusters[5][5000]; // Cluster informations
74 Int_t fClno; // number of clusters in a supermodule
77 clusters[0][i] --- x position of the cluster center
78 clusters[1][i] --- y position of the cluster center
79 clusters[2][i] --- total energy in the cluster
80 clusters[3][i] --- number of cells forming the cluster
81 ( possibly fractional )
82 clusters[4][i] --- cluster radius
85 //Variables for association
86 Int_t fCellTrNo[kNDIMX][kNDIMY]; //id x-y value of cells
87 Int_t fClTr[15][5000]; // 1d x-y cell info of attached cells
89 Int_t fIord[2][kNMX]; // ordered list of i and j according
90 // to decreasing energy dep.
91 Int_t fInfocl[2][kNDIMX][kNDIMY]; // cellwise information on the cluster to which the cell
92 Int_t fInfcl[3][kNMX]; // cluster information [0][i]
94 Double_t fCoord[2][kNDIMX][kNDIMY];
97 fIord --- ordered list of i and j according to decreasing energy dep.
98 fInfocl --- cellwise information on the cluster to which the cell
99 belongs and whether it has largest energy dep. or not
100 ( now redundant - probably )
101 fInfcl --- cluster information [0][i] -- cluster number
102 [1][i] -- i of the cell
103 [2][i] -- j of the cell
104 coord --- x and y coordinates of center of each cell
107 Float_t fCutoff; // Energy(ADC) cutoff per cell before clustering
109 ClassDef(AliPMDClusteringV1,2) // Does clustering for PMD