1 /***************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
16 //-----------------------------------------------------//
18 // Date : March 25 2004 //
19 // This reads the file PMD.RecPoints.root(TreeR), //
20 // calls the Clustering algorithm and stores the //
21 // clustering output in PMD.RecPoints.root(TreeR) //
23 //-----------------------------------------------------//
25 #include <Riostream.h>
30 #include <TGeometry.h>
31 #include <TObjArray.h>
32 #include <TClonesArray.h>
36 #include <TParticle.h>
38 #include "AliPMDcluster.h"
39 #include "AliPMDclupid.h"
40 #include "AliPMDrecpoint1.h"
41 #include "AliPMDUtility.h"
42 #include "AliPMDDiscriminator.h"
43 #include "AliPMDEmpDiscriminator.h"
44 #include "AliPMDtracker.h"
46 #include "AliESDPmdTrack.h"
50 ClassImp(AliPMDtracker)
52 AliPMDtracker::AliPMDtracker():
54 fRecpoints(new TClonesArray("AliPMDrecpoint1", 1000)),
55 fPMDcontin(new TObjArray()),
56 fPMDcontout(new TObjArray()),
57 fPMDutil(new AliPMDUtility()),
69 // Default Constructor
72 //--------------------------------------------------------------------//
73 AliPMDtracker:: AliPMDtracker(const AliPMDtracker & /* tracker */):
74 TObject(/* tracker */)
77 AliError("Copy constructor not allowed");
80 //--------------------------------------------------------------------//
81 AliPMDtracker& AliPMDtracker::operator=(const AliPMDtracker & /* tracker */)
83 // assignment operator
84 AliError("Assignment operator not allowed");
88 //--------------------------------------------------------------------//
89 AliPMDtracker::~AliPMDtracker()
100 fPMDcontin->Delete();
106 fPMDcontout->Delete();
111 //--------------------------------------------------------------------//
112 void AliPMDtracker::LoadClusters(TTree *treein)
114 // Load the Reconstructed tree
117 //--------------------------------------------------------------------//
118 void AliPMDtracker::Clusters2Tracks(AliESD *event)
120 // Converts digits to recpoints after running clustering
121 // algorithm on CPV plane and PREshower plane
128 TBranch *branch = fTreeR->GetBranch("PMDRecpoint");
131 AliError("PMDRecpoint branch not found");
134 branch->SetAddress(&fRecpoints);
136 Int_t nmodules = (Int_t) branch->GetEntries();
138 AliDebug(1,Form("Number of modules filled in treeR = %d",nmodules));
139 for (Int_t imodule = 0; imodule < nmodules; imodule++)
141 branch->GetEntry(imodule);
142 Int_t nentries = fRecpoints->GetLast();
143 AliDebug(2,Form("Number of clusters per modules filled in treeR = %d"
145 for(Int_t ient = 0; ient < nentries+1; ient++)
147 fPMDrecpoint = (AliPMDrecpoint1*)fRecpoints->UncheckedAt(ient);
148 idet = fPMDrecpoint->GetDetector();
149 ismn = fPMDrecpoint->GetSMNumber();
150 clusdata[0] = fPMDrecpoint->GetClusX();
151 clusdata[1] = fPMDrecpoint->GetClusY();
152 clusdata[2] = fPMDrecpoint->GetClusADC();
153 clusdata[3] = fPMDrecpoint->GetClusCells();
154 clusdata[4] = fPMDrecpoint->GetClusSigmaX();
155 clusdata[5] = fPMDrecpoint->GetClusSigmaY();
157 fPMDclin = new AliPMDrecpoint1(idet,ismn,clusdata);
158 fPMDcontin->Add(fPMDclin);
162 AliPMDDiscriminator *pmddiscriminator = new AliPMDEmpDiscriminator();
163 pmddiscriminator->Discrimination(fPMDcontin,fPMDcontout);
165 const Float_t kzpos = 361.5; // middle of the PMD
169 Float_t adc, ncell, rad;
170 Float_t xglobal = 0., yglobal = 0., zglobal = 0;
174 Int_t nentries2 = fPMDcontout->GetEntries();
175 AliDebug(1,Form("Number of clusters coming after discrimination = %d"
177 for (Int_t ient1 = 0; ient1 < nentries2; ient1++)
179 fPMDclout = (AliPMDclupid*)fPMDcontout->UncheckedAt(ient1);
181 det = fPMDclout->GetDetector();
182 smn = fPMDclout->GetSMN();
183 xpos = fPMDclout->GetClusX();
184 ypos = fPMDclout->GetClusY();
185 adc = fPMDclout->GetClusADC();
186 ncell = fPMDclout->GetClusCells();
187 rad = fPMDclout->GetClusRadius();
188 pid = fPMDclout->GetClusPID();
191 /**********************************************************************
192 * det : Detector, 0: PRE & 1:CPV *
193 * smn : Serial Module Number 0 to 23 for each plane *
194 * xpos : x-position of the cluster *
195 * ypos : y-position of the cluster *
196 * THESE xpos & ypos are not the true xpos and ypos *
197 * for some of the unit modules. They are rotated. *
198 * adc : ADC contained in the cluster *
199 * ncell : Number of cells contained in the cluster *
200 * rad : radius of the cluster (1d fit) *
201 **********************************************************************/
204 fPMDutil->RectGeomCellPos(smn,xpos,ypos,xglobal,yglobal);
208 zglobal = kzpos + 1.6; // PREshower plane
212 zglobal = kzpos - 1.7; // CPV plane
217 AliESDPmdTrack *esdpmdtr = new AliESDPmdTrack();
219 esdpmdtr->SetDetector(det);
220 esdpmdtr->SetClusterX(xglobal);
221 esdpmdtr->SetClusterY(yglobal);
222 esdpmdtr->SetClusterZ(zglobal);
223 esdpmdtr->SetClusterADC(adc);
224 esdpmdtr->SetClusterCells(ncell);
225 esdpmdtr->SetClusterPID(pid);
227 event->AddPmdTrack(esdpmdtr);
230 //--------------------------------------------------------------------//
231 void AliPMDtracker::SetVertex(Double_t vtx[3], Double_t evtx[3])
240 //--------------------------------------------------------------------//
241 void AliPMDtracker::ResetClusters()
243 if (fRecpoints) fRecpoints->Clear();
245 //--------------------------------------------------------------------//