[u/mrichter/AliRoot.git] / PMD / AliPMDClustering.h

#ifndef PMDClustering_H
#define PMDClustering_H
//-----------------------------------------------------//
//                                                     //
//  Header File : PMDClustering.h, Version 00          //
//                                                     //
//  Date   : September 26 2002                         //
//                                                     //
//  clustering code for alice pmd                      //
//                                                     //
//-----------------------------------------------------//
/* 
   --------------------------------------------------------------------
   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 
   supermodule.

   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
{
  
 protected:

  static const double pi;
  static const double sqrth;  // sqrth = sqrt(3.)/2.
  enum {
    nmx=5184,
    ndimx=72,
    ndimy=72
  };

  /*
    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
  */

  double d[ndimx][ndimy], clusters[5][5000]; 
  int clno;

  /*
    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 
                       ( possibly fractional )
    clusters[4][i] --- cluster radius
    One corner of the supermodule is chosen as the origin
  */


  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
  */

  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 SetMessage(Int_t);

  ClassDef(AliPMDClustering,1)
};
#endif
Commit	Line	Data
	1	#ifndef PMDClustering_H
	2	#define PMDClustering_H
	3	//-----------------------------------------------------//
	4	// //
	5	// Header File : PMDClustering.h, Version 00 //
	6	// //
	7	// Date : September 26 2002 //
	8	// //
	9	// clustering code for alice pmd //
	10	// //
	11	//-----------------------------------------------------//
	12	/*
	13	--------------------------------------------------------------------
	14	Code developed by S. C. Phatak, Institute of Physics,
	15	Bhubaneswar 751 005 ( phatak@iopb.res.in ) Given the energy deposited
	16	( or ADC value ) in each cell of supermodule ( pmd or cpv ), the code
	17	builds up superclusters and breaks them into clusters. The input is
	18	in array d[ndimx][ndimy] and cluster information is in array
	19	clusters[5][5000]. integer clno gives total number of clusters in the
	20	supermodule.
	21
	22	d, clno and clusters are the only global ( public ) variables. Others
	23	are local ( private ) to the code.
	24
	25	At the moment, the data is read for whole detector ( all supermodules
	26	and pmd as well as cpv. This will have to be modify later )
	27
	28	LAST UPDATE : October 23, 2002
	29	-----------------------------------------------------------------------
	30	*/
	31
	32
	33	#include <Riostream.h> // define cout stream
	34	#include <stdlib.h> // defines exit() functions
	35	#include <time.h> // for time function
	36	#include <math.h> // for mathematical functions
	37	#include "Rtypes.h"
	38
	39	class TNtuple;
	40	class TObjArray;
	41	class AliPMDcluster;
	42	class AliPMDClustering
	43	{
	44
	45	protected:
	46
	47	static const double pi;
	48	static const double sqrth; // sqrth = sqrt(3.)/2.
	49	enum {
	50	nmx=5184,
	51	ndimx=72,
	52	ndimy=72
	53	};
	54
	55	/*
	56	nmx : # of cells in a supermodule
	57	ndimx : maximum number of cells along x direction (origin at one corner)
	58	ndimy : maximum number of cells along axis at 60 degrees with x axis
	59	*/
	60
	61	double d[ndimx][ndimy], clusters[5][5000];
	62	int clno;
	63
	64	/*
	65	d ---- energy deposited ( or ADC ) in each cell of the supermodule
	66	clno --- number of clusters in a supermodule
	67	A cell is defined in terms of two integers (i,j) giving the its location
	68	clusters[0][i] --- x position of the cluster center
	69	clusters[1][i] --- y position of the cluster center
	70	clusters[2][i] --- total energy in the cluster
	71	clusters[3][i] --- number of cells forming the cluster
	72	( possibly fractional )
	73	clusters[4][i] --- cluster radius
	74	One corner of the supermodule is chosen as the origin
	75	*/
	76
	77
	78	int iord[2][nmx], infocl[2][ndimx][ndimy], infcl[3][nmx];
	79	double coord[2][ndimx][ndimy];
	80
	81	/*
	82	iord --- ordered list of i and j according to decreasing energy dep.
	83	infocl --- cellwise information on the cluster to which the cell
	84	belongs and whether it has largest energy dep. or not
	85	( now redundant - probably )
	86	infcl --- cluster information [0][i] -- cluster number
	87	[1][i] -- i of the cell
	88	[2][i] -- j of the cell
	89	coord --- x and y coordinates of center of each cell
	90	*/
	91
	92	Int_t fMessage;
	93
	94	public:
	95	AliPMDClustering();
	96	virtual ~AliPMDClustering();
	97
	98	void DoClust(int, int, double [][72], TObjArray *);
	99	int crclust(double, double, int, int);
	100	void refclust(int, int, int);
	101	double ranmar();
	102	void order(int);
	103	double Dist(double, double, double, double);
	104	void gaussfit(int, int, double &, double &, double &, double &, double &,
	105	double &, double &);
	106	void SetMessage(Int_t);
	107
	108	ClassDef(AliPMDClustering,1)
	109	};
	110	#endif