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37c55dc0 | 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 | // This is a TTask that constructs ReconstParticles (reconstructed particles) | |
18 | // out of Digits | |
19 | // | |
20 | //-- Authors: Evgeny Karpechev(INR) and Alla Maevsksia | |
21 | ////////////////////////////////////////////////////////////////////////////// | |
22 | ||
dc8af42e | 23 | // --- ROOT system --- |
24 | #include "TTask.h" | |
25 | #include "TTree.h" | |
26 | #include "TSystem.h" | |
27 | #include "TFile.h" | |
37c55dc0 | 28 | #include "TROOT.h" |
29 | #include "TFolder.h" | |
46501dfb | 30 | #include "TH2F.h" |
37c55dc0 | 31 | |
dc8af42e | 32 | // --- Standard library --- |
37c55dc0 | 33 | #include <stdlib.h> |
88cb7938 | 34 | #include <Riostream.h> |
dc8af42e | 35 | |
36 | // --- AliRoot header files --- | |
37 | ||
88cb7938 | 38 | #include "AliRunLoader.h" |
39 | #include "AliLoader.h" | |
40 | ||
dc8af42e | 41 | #include "AliFMDdigit.h" |
1a42d4f2 | 42 | #include "AliFMDhit.h" |
dc8af42e | 43 | #include "AliFMDReconstParticles.h" |
44 | #include "AliFMD.h" | |
45 | #include "AliFMDv1.h" | |
46 | #include "AliFMDReconstruction.h" | |
47 | #include "AliRun.h" | |
88cb7938 | 48 | #include "AliConfig.h" |
1a42d4f2 | 49 | #include "AliHeader.h" |
50 | #include "AliGenEventHeader.h" | |
88cb7938 | 51 | |
dc8af42e | 52 | ClassImp(AliFMDReconstruction) |
53 | ||
54 | ||
55 | //____________________________________________________________________________ | |
56 | ||
57 | AliFMDReconstruction::AliFMDReconstruction():TTask("AliFMDReconstruction","") | |
58 | { | |
59 | fNevents = 0 ; // Number of events to rreconnstraction, 0 means all events in current file | |
88cb7938 | 60 | fRunLoader = 0x0; |
61 | ||
dc8af42e | 62 | } |
63 | //____________________________________________________________________________ | |
64 | ||
88cb7938 | 65 | AliFMDReconstruction::AliFMDReconstruction(AliRunLoader* rl):TTask("AliFMDReconstruction","") |
dc8af42e | 66 | { |
88cb7938 | 67 | |
68 | if (rl == 0x0) | |
69 | { | |
70 | Fatal("AliFMDReconstruction","Argument AliRunLoader* is null!"); | |
71 | return; | |
72 | } | |
73 | ||
dc8af42e | 74 | fNevents = 0 ; // Number of events to rreconnstraction, 0 means all events in current file |
88cb7938 | 75 | |
76 | fRunLoader = rl; | |
77 | AliLoader* gime = fRunLoader->GetLoader("FMDLoader"); | |
78 | if (gime == 0x0) | |
79 | { | |
80 | Fatal("AliFMDReconstruction","Can not find FMD (loader) in specified event"); | |
81 | return;//never reached | |
82 | } | |
dc8af42e | 83 | //add Task to //root/Tasks folder |
88cb7938 | 84 | gime->PostReconstructioner(this); |
dc8af42e | 85 | } |
86 | ||
87 | //____________________________________________________________________________ | |
88 | ||
89 | AliFMDReconstruction::~AliFMDReconstruction() | |
90 | { | |
dc8af42e | 91 | } |
88cb7938 | 92 | |
93 | //____________________________________________________________________________ | |
dc8af42e | 94 | |
46501dfb | 95 | void AliFMDReconstruction::Exec() |
dc8af42e | 96 | { |
88cb7938 | 97 | //Collects all digits in the same active volume into number of particles |
a39f3926 | 98 | /* |
88cb7938 | 99 | Reconstruct number of particles |
a39f3926 | 100 | in given group of pads for given FMDvolume |
101 | determine by numberOfVolume , | |
102 | numberOfMinSector,numberOfMaxSector, | |
103 | numberOfMinRing, numberOgMaxRing | |
104 | Reconstruction method choose dependence on number of empty pads | |
105 | */ | |
106 | ||
107 | ||
1a42d4f2 | 108 | cout<<"\nStart AliFMDReconstruction::Exec(...)"<<endl; |
a39f3926 | 109 | Int_t const knumVolumes=5; |
46501dfb | 110 | Int_t padADC; |
1a42d4f2 | 111 | Float_t eta, etain,etaout,rad,theta; |
cb1df35e | 112 | Int_t ivol, iSector, iRing; |
1a42d4f2 | 113 | Float_t rin[5]={4.2,15.4,4.2,15.4,4.2}; |
114 | Float_t rout[5]={17.4,28.4,17.4,28.4,17.4}; | |
115 | Float_t z[5]={62.8, 75.2, -83.4, -75.2, -340.}; | |
46501dfb | 116 | Int_t numberOfRings[5]={512,256,512,256,512}; |
a39f3926 | 117 | Int_t numberOfSectors[5]= {20,40,20,40,20}; |
118 | Int_t numberOfEtaIntervals[5]; | |
cb1df35e | 119 | // number of ring for boundary 0.1 eta |
cb1df35e | 120 | |
88cb7938 | 121 | |
122 | if (fRunLoader == 0x0) | |
123 | { | |
124 | Error("Exec","Run Loader loader is NULL - Session not opened"); | |
125 | return; | |
126 | } | |
46501dfb | 127 | |
128 | ||
129 | AliLoader* gime = fRunLoader->GetLoader("FMDLoader"); | |
88cb7938 | 130 | if (gime == 0x0) |
131 | { | |
132 | Fatal("AliFMDReconstruction","Can not find FMD (loader) in specified event"); | |
133 | return;//never reached | |
134 | } | |
135 | ||
136 | fRunLoader->LoadgAlice(); | |
46501dfb | 137 | fRunLoader->LoadHeader(); |
88cb7938 | 138 | Int_t retval; |
46501dfb | 139 | TDirectory* cwd = gDirectory; |
140 | gDirectory = 0x0; | |
141 | Text_t buf1[20]; | |
142 | TH2F* hTotal[10]; | |
143 | for (Int_t j=1; j<=5; j++){ | |
144 | sprintf(buf1,"hTotal%d",j); | |
145 | ||
146 | hTotal[j] = new TH2F(buf1," Number of primary particles ", | |
147 | numberOfSectors[j-1],1,numberOfSectors[j-1], | |
148 | numberOfRings[j-1],1,numberOfRings[j-1]); | |
149 | } | |
150 | gDirectory = cwd; | |
151 | ||
152 | ||
153 | if(fNevents == 0) fNevents=fRunLoader->TreeE()->GetEntries(); | |
154 | cout<<" fNevents "<<fNevents<<endl; | |
155 | for(Int_t ievent=0;ievent<fNevents;ievent++) | |
dc8af42e | 156 | { |
88cb7938 | 157 | fRunLoader->GetEvent(ievent) ; |
158 | ||
1a42d4f2 | 159 | cout<<" ievent "<<ievent<<endl; |
46501dfb | 160 | for (Int_t i=0; i<5; i++) |
161 | hTotal[i+1]->Reset(); | |
162 | ||
163 | retval = gime->LoadDigits("READ"); | |
164 | if (retval) | |
165 | { | |
166 | Error("Exec","Error occured while loading digits. Exiting."); | |
167 | return; | |
168 | } | |
169 | ||
170 | AliFMD * fFMD = (AliFMD *) gAlice->GetDetector("FMD"); | |
171 | TClonesArray *fReconParticles=fFMD->ReconParticles(); | |
172 | TClonesArray *fDigits=fFMD->Digits(); | |
1a42d4f2 | 173 | |
46501dfb | 174 | TTree* treeD = gime->TreeD(); |
175 | if (treeD == 0x0) | |
176 | { | |
177 | Error("Exec","Can not get Tree with Digits. Nothing to reconstruct - Exiting"); | |
178 | return; | |
179 | } | |
180 | ||
181 | TBranch *brDigits=0; | |
182 | ||
183 | brDigits=treeD->GetBranch("FMD"); | |
184 | cout<<" brDigits "<<brDigits<<endl; | |
185 | if (brDigits) { | |
186 | brDigits->SetAddress(&fDigits); | |
187 | // fFMD->SetHitsAddressBranch(brHits); | |
188 | }else{ | |
189 | cerr<<"EXEC Branch FMD digits not found"<<endl; | |
190 | return; | |
191 | } | |
192 | ||
88cb7938 | 193 | if(gime->TreeR()==0) gime->MakeTree("R"); |
194 | ||
dc8af42e | 195 | //Make branches |
a39f3926 | 196 | fFMD->MakeBranch("R"); |
1a42d4f2 | 197 | |
37c55dc0 | 198 | |
46501dfb | 199 | Int_t zeroADC=6; |
1a42d4f2 | 200 | |
201 | AliFMDdigit *fmdDigit; | |
a39f3926 | 202 | if (fFMD) |
dc8af42e | 203 | { |
88cb7938 | 204 | gime->TreeD()->GetEvent(0); |
46501dfb | 205 | |
206 | Int_t nDigits=fDigits->GetEntries(); | |
1a42d4f2 | 207 | cout<<" nDigits "<<nDigits<<endl; |
46501dfb | 208 | Int_t recParticles[6]; |
209 | Int_t nRecPart=0 ; | |
a39f3926 | 210 | Int_t zeroPads=0; |
211 | Int_t numberOfPads=0; //To avoid warning | |
cb1df35e | 212 | Int_t pedestal; |
213 | Float_t channelWidth=(22400*50)/1024; | |
dc8af42e | 214 | for (Int_t digit=0;digit<nDigits;digit++) |
215 | { | |
46501dfb | 216 | fmdDigit=(AliFMDdigit*)fDigits->UncheckedAt(digit); |
cb1df35e | 217 | ivol=fmdDigit->Volume(); |
218 | iSector=fmdDigit->NumberOfSector(); | |
219 | iRing=fmdDigit->NumberOfRing(); | |
220 | pedestal=Int_t(gRandom->Gaus(500,250)); | |
46501dfb | 221 | padADC= fmdDigit->ADCsignal() |
cb1df35e | 222 | -Int_t(Float_t(pedestal)/channelWidth); |
46501dfb | 223 | if (padADC<0) padADC=0; |
224 | hTotal[ivol]->Fill(iSector,iRing,padADC); | |
225 | } //digit loop | |
a39f3926 | 226 | Int_t rmin=0; Int_t rmax=0; //To avoid warning |
227 | Int_t smin=0; Int_t smax=0; //To avoid warning | |
88cb7938 | 228 | AliHeader *header = fRunLoader->GetHeader(); |
1a42d4f2 | 229 | AliGenEventHeader* genHeader = header->GenEventHeader(); |
230 | TArrayF *o = new TArrayF(3); | |
231 | genHeader->PrimaryVertex(*o); | |
232 | Float_t zVertex=o->At(2); | |
a39f3926 | 233 | for (ivol=0; ivol<knumVolumes; ivol++) |
cb1df35e | 234 | { |
46501dfb | 235 | Float_t ring2number=Float_t (numberOfRings[ivol])/ |
236 | (rout[ivol]-rin[ivol]); | |
237 | Float_t realZ=zVertex+z[ivol]; | |
238 | theta=TMath::ATan(rout[ivol]/TMath::Abs(realZ)); | |
239 | etain = - TMath::Log( TMath::Tan(theta/2.)); | |
240 | theta=TMath::ATan(rin[ivol]/TMath::Abs(realZ)); | |
241 | etaout=- TMath::Log( TMath::Tan(theta/2.)); | |
242 | numberOfEtaIntervals[ivol]=(etaout-etain)*10-1; | |
243 | eta=etain; | |
244 | for (Int_t e1=0;e1<=numberOfEtaIntervals[ivol];e1++) | |
245 | { | |
246 | theta = 2.*TMath::ATan (TMath::Exp (-eta)); | |
247 | Float_t radmin = TMath::Abs(realZ) * (TMath::Tan (theta)); | |
248 | rmax= Int_t ( (radmin-rin[ivol])*ring2number+0.5); | |
249 | cout<<ivol<<" "<<" eta "<<eta<<" radmin "<<radmin<< | |
250 | ||
251 | " Rmax "<<rmax<<" "<<endl;; | |
252 | eta=eta+0.1; | |
253 | theta = 2.*TMath::ATan (TMath::Exp (-eta)); | |
254 | rad = TMath::Abs(realZ) * (TMath::Tan (theta)); | |
255 | rmin=Int_t( (rad-rin[ivol])*ring2number+0.5); | |
256 | cout<<"eta "<<eta<<" rad "<<rad<<" Rmin "<<rmin<<endl; | |
257 | // if(ivol==2&&e1==13) rmin=0; | |
258 | zeroPads=0; | |
259 | smin=0; | |
260 | smax=numberOfSectors[ivol]; | |
261 | numberOfPads=(rmax-rmin)*(smax-smin); | |
262 | for (Int_t iring=rmin; iring<rmax; iring++) | |
263 | { | |
264 | for | |
265 | (Int_t isector=0; | |
266 | isector<numberOfSectors[ivol]; | |
267 | isector++) | |
268 | { | |
269 | if(hTotal[ivol+1]->GetBinContent(isector+1,iring+1) | |
270 | <zeroADC) zeroPads++;} | |
271 | ||
272 | } //ring | |
273 | Float_t numberOfPads=Float_t(smax-smin)*Float_t(rmax-rmin); | |
274 | ||
275 | cout<<" zero "<<zeroPads++<<" pads "<<numberOfPads; | |
276 | Double_t lambda=-TMath::Log(Double_t(zeroPads)/numberOfPads); | |
277 | Int_t fRecon=(lambda*numberOfPads+0.5); | |
278 | ||
279 | Float_t zerosRatio= | |
280 | (Float_t)zeroPads/(Float_t)numberOfPads; | |
281 | cout<<" zerosRatio "<<zerosRatio<<" recon "<<fRecon<<endl; | |
282 | recParticles[0]=ivol+1; | |
283 | recParticles[1]=smin; | |
284 | recParticles[2]=smax; | |
285 | recParticles[3]=rmin; | |
286 | recParticles[4]=rmax; | |
287 | recParticles[5]= fRecon; | |
288 | new((*fReconParticles)[nRecPart++]) | |
289 | AliFMDReconstParticles(recParticles); | |
290 | ||
291 | ||
1a42d4f2 | 292 | } // eta |
293 | } // volume | |
cb1df35e | 294 | |
cb1df35e | 295 | }//if FMD |
88cb7938 | 296 | gime->TreeR()->Reset(); |
297 | gime->TreeR()->Fill(); | |
298 | gime->WriteRecPoints("OVERWRITE"); | |
dc8af42e | 299 | } //event loop |
1a42d4f2 | 300 | cout<<"\nAliFMDReconstruction::Exec finished"<<endl; |
88cb7938 | 301 | } |
dc8af42e | 302 |