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>
28 #include <TObjArray.h>
29 #include <TClonesArray.h>
33 #include <TParticle.h>
35 #include "AliPMDcluster.h"
36 #include "AliPMDclupid.h"
37 #include "AliPMDrecpoint1.h"
38 #include "AliPMDUtility.h"
39 #include "AliPMDDiscriminator.h"
40 #include "AliPMDEmpDiscriminator.h"
41 #include "AliPMDtracker.h"
43 #include "AliESDPmdTrack.h"
44 #include "AliESDEvent.h"
47 ClassImp(AliPMDtracker)
49 AliPMDtracker::AliPMDtracker():
51 fRecpoints(new TClonesArray("AliPMDrecpoint1", 10)),
52 fPMDcontin(new TObjArray()),
53 fPMDcontout(new TObjArray()),
54 fPMDutil(new AliPMDUtility()),
66 // Default Constructor
69 //--------------------------------------------------------------------//
70 AliPMDtracker:: AliPMDtracker(const AliPMDtracker & /* tracker */):
71 TObject(/* tracker */),
88 AliError("Copy constructor not allowed");
91 //--------------------------------------------------------------------//
92 AliPMDtracker& AliPMDtracker::operator=(const AliPMDtracker & /* tracker */)
94 // assignment operator
95 AliError("Assignment operator not allowed");
99 //--------------------------------------------------------------------//
100 AliPMDtracker::~AliPMDtracker()
109 fPMDcontin->Delete();
116 fPMDcontout->Delete();
123 //--------------------------------------------------------------------//
124 void AliPMDtracker::LoadClusters(TTree *treein)
126 // Load the Reconstructed tree
129 //--------------------------------------------------------------------//
130 void AliPMDtracker::Clusters2Tracks(AliESDEvent *event)
132 // Converts digits to recpoints after running clustering
133 // algorithm on CPV plane and PREshower plane
140 TBranch *branch = fTreeR->GetBranch("PMDRecpoint");
143 AliError("PMDRecpoint branch not found");
146 branch->SetAddress(&fRecpoints);
148 Int_t nmodules = (Int_t) branch->GetEntries();
150 AliDebug(1,Form("Number of modules filled in treeR = %d",nmodules));
151 for (Int_t imodule = 0; imodule < nmodules; imodule++)
153 branch->GetEntry(imodule);
154 Int_t nentries = fRecpoints->GetLast();
155 AliDebug(2,Form("Number of clusters per modules filled in treeR = %d"
157 for(Int_t ient = 0; ient < nentries+1; ient++)
159 fPMDrecpoint = (AliPMDrecpoint1*)fRecpoints->UncheckedAt(ient);
160 idet = fPMDrecpoint->GetDetector();
161 ismn = fPMDrecpoint->GetSMNumber();
162 clusdata[0] = fPMDrecpoint->GetClusX();
163 clusdata[1] = fPMDrecpoint->GetClusY();
164 clusdata[2] = fPMDrecpoint->GetClusADC();
165 clusdata[3] = fPMDrecpoint->GetClusCells();
166 clusdata[4] = fPMDrecpoint->GetClusSigmaX();
167 clusdata[5] = fPMDrecpoint->GetClusSigmaY();
169 fPMDclin = new AliPMDrecpoint1(idet,ismn,clusdata);
170 fPMDcontin->Add(fPMDclin);
174 AliPMDDiscriminator *pmddiscriminator = new AliPMDEmpDiscriminator();
175 pmddiscriminator->Discrimination(fPMDcontin,fPMDcontout);
177 const Float_t kzpos = 361.5; // middle of the PMD
181 Float_t adc, ncell, rad;
182 Float_t xglobal = 0., yglobal = 0., zglobal = 0;
186 Int_t nentries2 = fPMDcontout->GetEntries();
187 AliDebug(1,Form("Number of clusters coming after discrimination = %d"
189 for (Int_t ient1 = 0; ient1 < nentries2; ient1++)
191 fPMDclout = (AliPMDclupid*)fPMDcontout->UncheckedAt(ient1);
193 det = fPMDclout->GetDetector();
194 smn = fPMDclout->GetSMN();
195 xpos = fPMDclout->GetClusX();
196 ypos = fPMDclout->GetClusY();
197 adc = fPMDclout->GetClusADC();
198 ncell = fPMDclout->GetClusCells();
199 rad = fPMDclout->GetClusRadius();
200 pid = fPMDclout->GetClusPID();
203 /**********************************************************************
204 * det : Detector, 0: PRE & 1:CPV *
205 * smn : Serial Module Number 0 to 23 for each plane *
206 * xpos : x-position of the cluster *
207 * ypos : y-position of the cluster *
208 * THESE xpos & ypos are not the true xpos and ypos *
209 * for some of the unit modules. They are rotated. *
210 * adc : ADC contained in the cluster *
211 * ncell : Number of cells contained in the cluster *
212 * rad : radius of the cluster (1d fit) *
213 **********************************************************************/
216 fPMDutil->RectGeomCellPos(smn,xpos,ypos,xglobal,yglobal);
220 zglobal = kzpos + 1.6; // PREshower plane
224 zglobal = kzpos - 1.7; // CPV plane
229 AliESDPmdTrack *esdpmdtr = new AliESDPmdTrack();
231 esdpmdtr->SetDetector(det);
232 esdpmdtr->SetClusterX(xglobal);
233 esdpmdtr->SetClusterY(yglobal);
234 esdpmdtr->SetClusterZ(zglobal);
235 esdpmdtr->SetClusterADC(adc);
236 esdpmdtr->SetClusterCells(ncell);
237 esdpmdtr->SetClusterPID(pid);
239 event->AddPmdTrack(esdpmdtr);
242 fPMDcontin->Delete();
243 fPMDcontout->Delete();
246 //--------------------------------------------------------------------//
247 void AliPMDtracker::SetVertex(Double_t vtx[3], Double_t evtx[3])
256 //--------------------------------------------------------------------//
257 void AliPMDtracker::ResetClusters()
259 if (fRecpoints) fRecpoints->Clear();
261 //--------------------------------------------------------------------//