]>
Commit | Line | Data |
---|---|---|
c1c44db3 | 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 | * FIT reconstruction and filling ESD | |
18 | * - reconstruct mean time (interation time) | |
19 | * - vertex position | |
20 | * - multiplicity | |
21 | ********************************************************************/ | |
22 | ||
23 | #include <AliESDEvent.h> | |
24 | #include "AliLog.h" | |
25 | #include "AliFITRecPoint.h" | |
26 | #include "AliFITDigit.h" | |
27 | #include "AliFITReconstructor.h" | |
28 | #include "AliESDFIT.h" | |
29 | #include "AliLog.h" | |
30 | #include "AliESDRun.h" | |
31 | #include "AliFITRawReader.h" | |
32 | ||
33 | #include <TArrayI.h> | |
34 | #include <TGraph.h> | |
35 | #include <TMath.h> | |
36 | #include <Riostream.h> | |
37 | ||
5e2539d9 | 38 | using std::cout; |
39 | using std::endl; | |
40 | ||
c1c44db3 | 41 | ClassImp(AliFITReconstructor) |
42 | ||
43 | AliFITReconstructor:: AliFITReconstructor(): AliReconstructor(), | |
44 | fESD(NULL), | |
292cfeb6 | 45 | fESDFIT(NULL), |
46 | fDigits(NULL) | |
c1c44db3 | 47 | |
48 | { | |
49 | ||
50 | //constructor | |
51 | ||
52 | ||
53 | fESDFIT = new AliESDFIT(); | |
54 | ||
55 | ||
56 | } | |
57 | //_____________________________________________________________________________ | |
58 | void AliFITReconstructor::Init() | |
59 | { | |
60 | // initializer | |
61 | ||
62 | fESDFIT = new AliESDFIT; | |
63 | } | |
64 | ||
65 | //______________________________________________________________________ | |
66 | void AliFITReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const | |
67 | { | |
68 | // converts RAW to digits | |
69 | cout<<" AliFITReconstructor::ConvertDigits "<<rawReader<<" "<<digitsTree<<endl; | |
70 | if (!digitsTree) { | |
71 | AliError("No digits tree!"); | |
72 | return; | |
73 | } | |
74 | ||
75 | fDigits = new TClonesArray ("AliFITDigit", 100); | |
76 | digitsTree->Branch("FIT", &fDigits); | |
77 | ||
78 | AliFITRawReader myrawreader(rawReader); | |
79 | if (myrawreader.Next()) | |
80 | { | |
81 | Int_t allData[500]; | |
82 | for (Int_t i=0; i<500; i++) allData[i]=0; | |
83 | for (Int_t i=0; i<500; i++) | |
84 | if(myrawreader.GetData(i)>0) { | |
85 | allData[i]=myrawreader.GetData(i); | |
86 | } | |
87 | ||
88 | Int_t timeCFD, timeLED, timeQT1, timeQT0; | |
89 | for (Int_t ipmt=0; ipmt<160; ipmt++) { | |
90 | if(allData[ipmt]>0) { | |
91 | timeCFD = allData[ipmt]; | |
92 | timeLED = allData[ipmt]; | |
93 | timeQT0= allData[ipmt+160]; | |
94 | timeQT1 = allData[ipmt+320]; | |
95 | //add digit | |
96 | new((*fDigits)[fDigits->GetEntriesFast()] ) | |
97 | AliFITDigit( ipmt,timeCFD, timeLED, timeQT0, timeQT1, 0); | |
98 | } | |
99 | } | |
100 | ||
101 | ||
102 | ||
103 | digitsTree->Fill(); | |
104 | } | |
105 | ||
106 | ||
107 | } | |
108 | ||
109 | //____________________________________________________________ | |
292cfeb6 | 110 | void AliFITReconstructor::FillESD(TTree *digitsTree, TTree * /*clustersTree*/, AliESDEvent *pESD) const |
c1c44db3 | 111 | { |
112 | ||
113 | /*************************************************** | |
114 | Resonstruct digits to vertex position | |
115 | ****************************************************/ | |
116 | ||
117 | AliDebug(1,Form("Start FillESD FIT")); | |
118 | if(!pESD) { | |
119 | AliError("No ESD Event"); | |
120 | return; | |
121 | } | |
122 | ||
123 | Float_t channelWidth = 24.4; | |
124 | Float_t c = 0.0299792458; // cm/ps | |
292cfeb6 | 125 | Float_t currentVertex, shift=0; |
c1c44db3 | 126 | Int_t ncont=-1; |
292cfeb6 | 127 | const AliESDVertex* vertex = pESD->GetPrimaryVertex(); |
c1c44db3 | 128 | if (!vertex) vertex = pESD->GetPrimaryVertexSPD(); |
129 | if (!vertex) vertex = pESD->GetPrimaryVertexTPC(); | |
130 | if (!vertex) vertex = pESD->GetVertex(); | |
131 | ||
132 | if (vertex) { | |
133 | AliDebug(2, Form("Got %s (%s) from ESD: %f", | |
134 | vertex->GetName(), vertex->GetTitle(), vertex->GetZ())); | |
135 | currentVertex = vertex->GetZ(); | |
136 | ||
137 | ncont = vertex->GetNContributors(); | |
138 | if(ncont>0 ) { | |
139 | shift = currentVertex/c; | |
140 | } | |
141 | } //vertex | |
142 | ||
292cfeb6 | 143 | |
c1c44db3 | 144 | // FIT digits reconstruction |
145 | ||
146 | if (!digitsTree) { | |
147 | AliError("No digits tree!"); | |
148 | return; | |
149 | } | |
150 | ||
151 | fDigits = new TClonesArray("AliFITDigit", 100); | |
152 | // digitsTree->Print(); | |
153 | TBranch *brDigits=digitsTree->GetBranch("FIT"); | |
154 | if (brDigits) | |
155 | brDigits->SetAddress(&fDigits); | |
156 | else { | |
157 | AliError("no FIT branch"); | |
158 | return; | |
159 | } | |
160 | const Float_t max_time = 1e7; | |
161 | Int_t pmt=-1; | |
162 | Float_t time[160],amp[160]; | |
163 | for(Int_t i=0; i<160; i++) { time[i]=max_time; amp[i]=0;} | |
164 | ||
165 | Int_t nEntries = (Int_t)digitsTree->GetEntries(); | |
166 | for (Int_t iev=0; iev<nEntries; iev++) { | |
167 | digitsTree->GetEvent(iev,1); | |
168 | brDigits->GetEvent(iev); | |
169 | Int_t nDigits = fDigits->GetEntriesFast(); | |
170 | for (Int_t dig=0; dig<nDigits; dig++) { | |
171 | AliFITDigit* digit = (AliFITDigit*) fDigits->At(dig); | |
172 | pmt = digit->NPMT(); | |
173 | time[pmt] = Float_t (digit->TimeCFD() ); | |
174 | amp[pmt] = Float_t (digit->TimeQT1() - digit->TimeQT0() ); | |
175 | } | |
176 | fESDFIT->SetFITtime(time); // best TOF on each PMT | |
177 | fESDFIT->SetFITamplitude(amp); // number of particles(MIPs) on each | |
178 | ||
179 | Float_t firsttime[3] = {max_time,max_time,max_time}; | |
180 | ||
181 | Float_t vertexFIT = 9999999; | |
182 | for (Int_t ipmt=0; ipmt<80; ipmt++)//timeC | |
183 | if(time[ipmt]<firsttime[2]) firsttime[2]=time[ipmt]; | |
184 | ||
185 | for ( Int_t ipmt=80; ipmt<160; ipmt++) | |
186 | if(time[ipmt]<firsttime[1]) firsttime[1]=time[ipmt]; | |
187 | ||
188 | ||
189 | AliDebug(5,Form("1stimeA %f , 1sttimeC %f ", | |
190 | firsttime[1], | |
191 | firsttime[2] ) ); | |
192 | if (firsttime[1]<max_time && firsttime[2]<max_time) { | |
193 | firsttime[0] = channelWidth *(firsttime[1] + firsttime[2])/2; | |
194 | vertexFIT = c*channelWidth*(firsttime[1] - firsttime[2])/2; | |
195 | } | |
196 | if (firsttime[1]<max_time) | |
197 | firsttime[1] = firsttime[1] * channelWidth + shift; | |
198 | ||
199 | if (firsttime[2]<max_time) | |
200 | firsttime[2] = firsttime[2] * channelWidth - shift; | |
201 | ||
202 | ||
203 | ||
204 | for(Int_t i=0; i<3; i++) { | |
205 | fESDFIT->SetFITT0(i,firsttime[i]); // interaction time (ns) | |
206 | } | |
207 | fESDFIT->SetFITzVertex(vertexFIT); //vertex Z position | |
208 | ||
209 | ||
210 | AliDebug(1,Form("FIT: SPDshift %f Vertex %f FITsignal %f ps FITA %f ps FITC %f ps \n",shift, vertexFIT, firsttime[0], firsttime[1],firsttime[2])); | |
211 | } | |
212 | ||
213 | } |