// 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 "Rtypes.h"
class TNtuple;
class TObjArray;
-class AliPMDcluster;
class AliPMDClustering: public TObject
{
public:
- AliPMDClustering();
- virtual ~AliPMDClustering();
+ AliPMDClustering(){};
+ virtual ~AliPMDClustering(){};
- void DoClust(Int_t idet, Int_t ismn, Double_t celladc[][96],
- TObjArray *pmdcont);
- void Order();
+ virtual void DoClust(Int_t idet, Int_t ismn, Int_t celltrack[][96],
+ Int_t cellpid[][96], Double_t celladc[][96],
+ TObjArray *pmdcont) = 0;
- 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);
+ virtual void SetEdepCut(Float_t decut) = 0;
+ virtual void SetClusteringParam(Int_t cluspar) = 0;
- protected:
-
- 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 {
- kNMX = 9120,
- kNDIMX = 95,
- kNDIMY = 96,
- kNDIMXr = 48,
- kNDIMYr = 96
- };
- /*
- 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_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
-
- /*
- 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
- */
-
- 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];
-
- /*
- 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 fDebug; // Switch for debug (1:Print, 0:Noprint)
- Float_t fCutoff; // Energy(ADC) cutoff per cell before clustering
-
- ClassDef(AliPMDClustering,3) // Does clustering for PMD
+ ClassDef(AliPMDClustering,9) // Does clustering for PMD
};
#endif