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1 | /*************************************************************************** | |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
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 | **************************************************************************/ | |
15 | ||
16 | //-----------------------------------------------------// | |
17 | // // | |
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) // | |
22 | // // | |
23 | //-----------------------------------------------------// | |
24 | ||
25 | #include <Riostream.h> | |
26 | #include <TMath.h> | |
27 | #include <TTree.h> | |
28 | #include <TObjArray.h> | |
29 | #include <TClonesArray.h> | |
30 | #include <TFile.h> | |
31 | #include <TBranch.h> | |
32 | #include <TNtuple.h> | |
33 | #include <TParticle.h> | |
34 | ||
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" | |
42 | ||
43 | #include "AliESDPmdTrack.h" | |
44 | #include "AliESDEvent.h" | |
45 | #include "AliLog.h" | |
46 | ||
47 | ClassImp(AliPMDtracker) | |
48 | ||
49 | AliPMDtracker::AliPMDtracker(): | |
50 | fTreeR(0), | |
51 | fRecpoints(new TClonesArray("AliPMDrecpoint1", 10)), | |
52 | fPMDcontin(new TObjArray()), | |
53 | fPMDcontout(new TObjArray()), | |
54 | fPMDutil(new AliPMDUtility()), | |
55 | fPMDrecpoint(0), | |
56 | fPMDclin(0), | |
57 | fPMDclout(0), | |
58 | fXvertex(0.), | |
59 | fYvertex(0.), | |
60 | fZvertex(0.), | |
61 | fSigmaX(0.), | |
62 | fSigmaY(0.), | |
63 | fSigmaZ(0.) | |
64 | { | |
65 | // | |
66 | // Default Constructor | |
67 | // | |
68 | } | |
69 | //--------------------------------------------------------------------// | |
70 | AliPMDtracker:: AliPMDtracker(const AliPMDtracker & /* tracker */): | |
71 | TObject(/* tracker */), | |
72 | fTreeR(0), | |
73 | fRecpoints(NULL), | |
74 | fPMDcontin(NULL), | |
75 | fPMDcontout(NULL), | |
76 | fPMDutil(NULL), | |
77 | fPMDrecpoint(0), | |
78 | fPMDclin(0), | |
79 | fPMDclout(0), | |
80 | fXvertex(0.), | |
81 | fYvertex(0.), | |
82 | fZvertex(0.), | |
83 | fSigmaX(0.), | |
84 | fSigmaY(0.), | |
85 | fSigmaZ(0.) | |
86 | { | |
87 | // copy constructor | |
88 | AliError("Copy constructor not allowed"); | |
89 | } | |
90 | ||
91 | //--------------------------------------------------------------------// | |
92 | AliPMDtracker& AliPMDtracker::operator=(const AliPMDtracker & /* tracker */) | |
93 | { | |
94 | // assignment operator | |
95 | AliError("Assignment operator not allowed"); | |
96 | return *this; | |
97 | } | |
98 | ||
99 | //--------------------------------------------------------------------// | |
100 | AliPMDtracker::~AliPMDtracker() | |
101 | { | |
102 | // Destructor | |
103 | if (fRecpoints) | |
104 | { | |
105 | fRecpoints->Clear(); | |
106 | } | |
107 | if (fPMDcontin) | |
108 | { | |
109 | fPMDcontin->Delete(); | |
110 | delete fPMDcontin; | |
111 | fPMDcontin=0; | |
112 | ||
113 | } | |
114 | if (fPMDcontout) | |
115 | { | |
116 | fPMDcontout->Delete(); | |
117 | delete fPMDcontout; | |
118 | fPMDcontout=0; | |
119 | ||
120 | } | |
121 | delete fPMDutil; | |
122 | } | |
123 | //--------------------------------------------------------------------// | |
124 | void AliPMDtracker::LoadClusters(TTree *treein) | |
125 | { | |
126 | // Load the Reconstructed tree | |
127 | fTreeR = treein; | |
128 | } | |
129 | //--------------------------------------------------------------------// | |
130 | void AliPMDtracker::Clusters2Tracks(AliESDEvent *event) | |
131 | { | |
132 | // Converts digits to recpoints after running clustering | |
133 | // algorithm on CPV plane and PREshower plane | |
134 | // | |
135 | ||
136 | Int_t idet; | |
137 | Int_t ismn; | |
138 | Float_t clusdata[6]; | |
139 | ||
140 | TBranch *branch = fTreeR->GetBranch("PMDRecpoint"); | |
141 | if (!branch) | |
142 | { | |
143 | AliError("PMDRecpoint branch not found"); | |
144 | return; | |
145 | } | |
146 | branch->SetAddress(&fRecpoints); | |
147 | ||
148 | Int_t nmodules = (Int_t) branch->GetEntries(); | |
149 | ||
150 | AliDebug(1,Form("Number of modules filled in treeR = %d",nmodules)); | |
151 | for (Int_t imodule = 0; imodule < nmodules; imodule++) | |
152 | { | |
153 | branch->GetEntry(imodule); | |
154 | Int_t nentries = fRecpoints->GetLast(); | |
155 | AliDebug(2,Form("Number of clusters per modules filled in treeR = %d" | |
156 | ,nentries)); | |
157 | for(Int_t ient = 0; ient < nentries+1; ient++) | |
158 | { | |
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(); | |
168 | ||
169 | fPMDclin = new AliPMDrecpoint1(idet,ismn,clusdata); | |
170 | fPMDcontin->Add(fPMDclin); | |
171 | } | |
172 | } | |
173 | ||
174 | AliPMDDiscriminator *pmddiscriminator = new AliPMDEmpDiscriminator(); | |
175 | pmddiscriminator->Discrimination(fPMDcontin,fPMDcontout); | |
176 | ||
177 | const Float_t kzpos = 361.5; // middle of the PMD | |
178 | ||
179 | Int_t det,smn; | |
180 | Float_t xpos,ypos; | |
181 | Float_t adc, ncell, rad; | |
182 | Float_t xglobal = 0., yglobal = 0., zglobal = 0; | |
183 | Float_t pid; | |
184 | ||
185 | ||
186 | Int_t nentries2 = fPMDcontout->GetEntries(); | |
187 | AliDebug(1,Form("Number of clusters coming after discrimination = %d" | |
188 | ,nentries2)); | |
189 | for (Int_t ient1 = 0; ient1 < nentries2; ient1++) | |
190 | { | |
191 | fPMDclout = (AliPMDclupid*)fPMDcontout->UncheckedAt(ient1); | |
192 | ||
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(); | |
201 | ||
202 | // | |
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 | **********************************************************************/ | |
214 | // | |
215 | ||
216 | fPMDutil->RectGeomCellPos(smn,xpos,ypos,xglobal,yglobal); | |
217 | ||
218 | if (det == 0) | |
219 | { | |
220 | zglobal = kzpos + 1.6; // PREshower plane | |
221 | } | |
222 | else if (det == 1) | |
223 | { | |
224 | zglobal = kzpos - 1.7; // CPV plane | |
225 | } | |
226 | ||
227 | // Fill ESD | |
228 | ||
229 | AliESDPmdTrack *esdpmdtr = new AliESDPmdTrack(); | |
230 | ||
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); | |
238 | ||
239 | event->AddPmdTrack(esdpmdtr); | |
240 | } | |
241 | ||
242 | fPMDcontin->Delete(); | |
243 | fPMDcontout->Delete(); | |
244 | ||
245 | } | |
246 | //--------------------------------------------------------------------// | |
247 | void AliPMDtracker::SetVertex(Double_t vtx[3], Double_t evtx[3]) | |
248 | { | |
249 | fXvertex = vtx[0]; | |
250 | fYvertex = vtx[1]; | |
251 | fZvertex = vtx[2]; | |
252 | fSigmaX = evtx[0]; | |
253 | fSigmaY = evtx[1]; | |
254 | fSigmaZ = evtx[2]; | |
255 | } | |
256 | //--------------------------------------------------------------------// | |
257 | void AliPMDtracker::ResetClusters() | |
258 | { | |
259 | if (fRecpoints) fRecpoints->Clear(); | |
260 | } | |
261 | //--------------------------------------------------------------------// |