-#ifndef PMDClustering_H
-#define PMDClustering_H
+#ifndef ALIPMDCLUSTERING_H
+#define ALIPMDCLUSTERING_H
+/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * See cxx source for full Copyright notice */
//-----------------------------------------------------//
// //
// Header File : PMDClustering.h, Version 00 //
// clustering code for alice pmd //
// //
//-----------------------------------------------------//
-/*
- --------------------------------------------------------------------
- Code developed by S. C. Phatak, Institute of Physics,
+/* --------------------------------------------------------------------
+ Code developed by S. C. Phatak, Institute of Physics,
Bhubaneswar 751 005 ( phatak@iopb.res.in ) Given the energy deposited
( or ADC value ) in each cell of supermodule ( pmd or cpv ), the code
builds up superclusters and breaks them into clusters. The input is
in array d[ndimx][ndimy] and cluster information is in array
- clusters[5][5000]. integer clno gives total number of clusters in the
+ clusters[5][5000]. integer clno gives total number of clusters in the
supermodule.
-
- d, clno and clusters are the only global ( public ) variables. Others
- are local ( private ) to the code.
-
+ d, clno and clusters are the only global ( public ) variables. Others
+ are local ( private ) to the code.
At the moment, the data is read for whole detector ( all supermodules
and pmd as well as cpv. This will have to be modify later )
-
LAST UPDATE : October 23, 2002
------------------------------------------------------------------------
-*/
-
-
-#include <Riostream.h> // define cout stream
-#include <stdlib.h> // defines exit() functions
-#include <time.h> // for time function
-#include <math.h> // for mathematical functions
+-----------------------------------------------------------------------*/
#include "Rtypes.h"
class TNtuple;
class TObjArray;
class AliPMDcluster;
-class AliPMDClustering
+class AliPMDClustering: public TObject
{
-
+
+ public:
+ AliPMDClustering();
+ virtual ~AliPMDClustering();
+
+ void DoClust(Int_t idet, Int_t ismn, Double_t celladc[][96],
+ TObjArray *pmdcont);
+ void Order();
+
+ Int_t CrClust(Double_t ave, Double_t cutoff, Int_t nmx1);
+ void RefClust(Int_t incr);
+ void GaussFit(Int_t ncell, Int_t nclust, Double_t &x,
+ Double_t &y, Double_t &z, Double_t &xc,
+ Double_t &yc, Double_t &zc, Double_t &rc);
+ Double_t Distance(Double_t x1, Double_t y1,
+ Double_t x2, Double_t y2);
+ Double_t Ranmar() const;
+ void SetEdepCut(Float_t decut);
+ void SetDebug(Int_t idebug);
+
protected:
- static const double pi;
- static const double sqrth; // sqrth = sqrt(3.)/2.
+ static const Double_t fgkSqroot3by2; // fgkSqroot3by2 = sqrt(3.)/2.
+ /*enum {
+ kNMX = 4608,
+ kNDIMX = 48,
+ kNDIMY = 96
+ };*/
+ /*
+ Proposed changes inNMX, kNDIMX and kNDIMY by S. C. Phatak to account
+ for rectangular ( vs rhomboid ) geometry.
+ To keep the clustering functional, we define a rhomboid which
+ superscribes the rectangle. So we need to pad up dummy cells in x
+ direction. The number of these cells is 96/2-1=47 in each row ( value
+ of x ). For first two rows, all dummy cells are to the left. For
+ every two rows add one cell to right and subtract one from left.
+ So previous (i,j) values go over to ( i',j) i'=i+(96-j)/2-1
+ Note we use C++ convention so i and j run from 0 to 47 or 95.
+ */
+
enum {
- nmx=5184,
- ndimx=72,
- ndimy=72
+ kNMX = 9120,
+ kNDIMX = 95,
+ kNDIMY = 96,
+ kNDIMXr = 48,
+ kNDIMYr = 96
};
-
/*
- nmx : # of cells in a supermodule
- ndimx : maximum number of cells along x direction (origin at one corner)
- ndimy : maximum number of cells along axis at 60 degrees with x axis
+ kNMX : # of cells in a supermodule
+ kNDIMX : maximum number of cells along x direction (origin at one corner)
+ kNDIMY : maximum number of cells along axis at 60 degrees with x axis
*/
- double d[ndimx][ndimy], clusters[5][5000];
- int clno;
+ Double_t fEdepCell[kNDIMX][kNDIMY]; //energy(ADC) in each cell of the supermodule
+ Double_t fClusters[5][5000]; // Cluster informations
+ Int_t fClno; // number of clusters in a supermodule
/*
- d ---- energy deposited ( or ADC ) in each cell of the supermodule
- clno --- number of clusters in a supermodule
- A cell is defined in terms of two integers (i,j) giving the its location
clusters[0][i] --- x position of the cluster center
clusters[1][i] --- y position of the cluster center
clusters[2][i] --- total energy in the cluster
- clusters[3][i] --- number of cells forming the cluster
+ clusters[3][i] --- number of cells forming the cluster
( possibly fractional )
clusters[4][i] --- cluster radius
- One corner of the supermodule is chosen as the origin
*/
+ Int_t fIord[2][kNMX]; // ordered list of i and j according to decreasing energy dep.
+ Int_t fInfocl[2][kNDIMX][kNDIMY]; // cellwise information on the cluster to which the cell
+ Int_t fInfcl[3][kNMX]; // cluster information [0][i] -- cluster number
+ Double_t fCoord[2][kNDIMX][kNDIMY];
- int iord[2][nmx], infocl[2][ndimx][ndimy], infcl[3][nmx];
- double coord[2][ndimx][ndimy];
-
- /*
- iord --- ordered list of i and j according to decreasing energy dep.
- infocl --- cellwise information on the cluster to which the cell
- belongs and whether it has largest energy dep. or not
- ( now redundant - probably )
- infcl --- cluster information [0][i] -- cluster number
- [1][i] -- i of the cell
- [2][i] -- j of the cell
- coord --- x and y coordinates of center of each cell
+ /*
+ fIord --- ordered list of i and j according to decreasing energy dep.
+ fInfocl --- cellwise information on the cluster to which the cell
+ belongs and whether it has largest energy dep. or not
+ ( now redundant - probably )
+ fInfcl --- cluster information [0][i] -- cluster number
+ [1][i] -- i of the cell
+ [2][i] -- j of the cell
+ coord --- x and y coordinates of center of each cell
*/
- Int_t fMessage;
-
- public:
- AliPMDClustering();
- virtual ~AliPMDClustering();
-
- void DoClust(int, int, double [][72], TObjArray *);
- int crclust(double, double, int, int);
- void refclust(int, int, int);
- double ranmar();
- void order(int);
- double Dist(double, double, double, double);
- void gaussfit(int, int, double &, double &, double &, double &, double &,
- double &, double &);
- void ConvertL2G(int, double, double, double &, double &);
- void cell_pos(Int_t , Int_t , Int_t , Float_t &, Float_t &);
- void SetMessage(Int_t);
+ Int_t fDebug; // Switch for debug (1:Print, 0:Noprint)
+ Float_t fCutoff; // Energy(ADC) cutoff per cell before clustering
- ClassDef(AliPMDClustering,1)
+ ClassDef(AliPMDClustering,3) // Does clustering for PMD
};
#endif
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