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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" | |
30 | ||
dc8af42e | 31 | // --- Standard library --- |
37c55dc0 | 32 | #include <stdlib.h> |
e75fab8f | 33 | #include "Riostream.h" |
dc8af42e | 34 | |
35 | // --- AliRoot header files --- | |
36 | ||
37 | #include "AliFMDdigit.h" | |
1a42d4f2 | 38 | #include "AliFMDhit.h" |
dc8af42e | 39 | #include "AliFMDReconstParticles.h" |
40 | #include "AliFMD.h" | |
41 | #include "AliFMDv1.h" | |
42 | #include "AliFMDReconstruction.h" | |
43 | #include "AliRun.h" | |
1a42d4f2 | 44 | #include "AliHeader.h" |
45 | #include "AliGenEventHeader.h" | |
dc8af42e | 46 | ClassImp(AliFMDReconstruction) |
47 | ||
48 | ||
49 | //____________________________________________________________________________ | |
50 | ||
51 | AliFMDReconstruction::AliFMDReconstruction():TTask("AliFMDReconstruction","") | |
52 | { | |
53 | fNevents = 0 ; // Number of events to rreconnstraction, 0 means all events in current file | |
54 | // add Task to //root/Tasks folder | |
55 | TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; | |
56 | roottasks->Add(this) ; | |
57 | } | |
58 | //____________________________________________________________________________ | |
59 | ||
60 | AliFMDReconstruction::AliFMDReconstruction(char* HeaderFile, char *ReconstParticlesFile):TTask("AliFMDReconstruction","") | |
61 | { | |
62 | fNevents = 0 ; // Number of events to rreconnstraction, 0 means all events in current file | |
63 | fReconstParticlesFile=ReconstParticlesFile ; | |
64 | fHeadersFile=HeaderFile ; | |
65 | //add Task to //root/Tasks folder | |
66 | TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; | |
67 | roottasks->Add(this) ; | |
68 | } | |
69 | ||
70 | //____________________________________________________________________________ | |
71 | ||
72 | AliFMDReconstruction::~AliFMDReconstruction() | |
73 | { | |
dc8af42e | 74 | } |
cb1df35e | 75 | //---------------------------------------------------------------------------- |
dc8af42e | 76 | |
37c55dc0 | 77 | void AliFMDReconstruction::Exec(Option_t *option) |
dc8af42e | 78 | { |
79 | //Collects all digits in the same active volume into number of particles | |
1a42d4f2 | 80 | cout<<"\nStart AliFMDReconstruction::Exec(...)"<<endl; |
cb1df35e | 81 | Int_t const NumVolums=5; |
82 | Int_t const NumSectors=40; | |
83 | Int_t const NumRings=768; | |
84 | Int_t PadADC[10][50][800]; | |
1a42d4f2 | 85 | Float_t eta, etain,etaout,rad,theta; |
cb1df35e | 86 | Int_t ivol, iSector, iRing; |
1a42d4f2 | 87 | Float_t rin[5]={4.2,15.4,4.2,15.4,4.2}; |
88 | Float_t rout[5]={17.4,28.4,17.4,28.4,17.4}; | |
89 | Float_t z[5]={62.8, 75.2, -83.4, -75.2, -340.}; | |
90 | Int_t NumberOfRings[5]={768,384,768,384,768}; | |
cb1df35e | 91 | Int_t NumberOfSectors[5]= {20,40,20,40,20}; |
1a42d4f2 | 92 | Int_t NumberOfEtaIntervals[5]; |
cb1df35e | 93 | // number of ring for boundary 0.1 eta |
1a42d4f2 | 94 | TBranch *brDigits=0; |
cb1df35e | 95 | |
1a42d4f2 | 96 | AliFMD * FMD = (AliFMD *) gAlice->GetDetector("FMD"); |
37c55dc0 | 97 | TClonesArray *fReconParticles=FMD->ReconParticles(); |
cb1df35e | 98 | if(fNevents == 0) fNevents=(Int_t)gAlice->TreeE()->GetEntries(); |
1a42d4f2 | 99 | cout<<" fNevents "<<fNevents<<endl; |
dc8af42e | 100 | for(Int_t ievent=0;ievent<fNevents;ievent++) |
101 | { | |
1a42d4f2 | 102 | cout<<" ievent "<<ievent<<endl; |
cb1df35e | 103 | for (Int_t i=0; i<NumVolums; i++) |
104 | for(Int_t j=0; j<NumSectors; j++) | |
105 | for(Int_t ij=0; ij<NumRings; ij++) | |
106 | PadADC[i][j][ij]=0; //zhachem ??? | |
dc8af42e | 107 | gAlice->GetEvent(ievent) ; |
108 | if(gAlice->TreeH()==0) return; | |
1a42d4f2 | 109 | if(gAlice->TreeD()==0) return; |
110 | brDigits=gAlice->TreeD()->GetBranch("FMD"); | |
111 | if (!brDigits){ | |
112 | cerr<<"EXEC Branch FMD digits not found"<<endl; | |
113 | return; | |
114 | } | |
115 | ||
dc8af42e | 116 | if(gAlice->TreeR()==0) gAlice->MakeTree("R"); |
117 | //Make branches | |
118 | FMD->MakeBranch("R"); | |
1a42d4f2 | 119 | |
37c55dc0 | 120 | |
cb1df35e | 121 | Int_t zeroADC=1; |
1a42d4f2 | 122 | |
123 | AliFMDdigit *fmdDigit; | |
124 | if (FMD) | |
dc8af42e | 125 | { |
126 | gAlice->TreeD()->GetEvent(0); | |
127 | TClonesArray *FMDdigits=FMD->Digits(); | |
37c55dc0 | 128 | Int_t nDigits=FMDdigits->GetEntries(); |
1a42d4f2 | 129 | cout<<" nDigits "<<nDigits<<endl; |
cb1df35e | 130 | Int_t RecParticles[6]; |
dc8af42e | 131 | Int_t nRecPart=0 ; |
cb1df35e | 132 | Int_t ZeroPads=0; |
133 | Int_t NumberOfPads=0; //To avoid warning | |
134 | Int_t pedestal; | |
135 | Float_t channelWidth=(22400*50)/1024; | |
dc8af42e | 136 | for (Int_t digit=0;digit<nDigits;digit++) |
137 | { | |
cb1df35e | 138 | fmdDigit=(AliFMDdigit*)FMDdigits->UncheckedAt(digit); |
139 | ivol=fmdDigit->Volume(); | |
140 | iSector=fmdDigit->NumberOfSector(); | |
141 | iRing=fmdDigit->NumberOfRing(); | |
142 | pedestal=Int_t(gRandom->Gaus(500,250)); | |
143 | PadADC[ivol-1][iSector-1][iRing-1]= | |
144 | fmdDigit->ADCsignal() | |
145 | -Int_t(Float_t(pedestal)/channelWidth); | |
146 | if (PadADC[ivol-1][iSector-1][iRing-1]<0) | |
147 | PadADC[ivol-1][iSector-1][iRing-1]=0; | |
dc8af42e | 148 | } //digit loop |
cb1df35e | 149 | Int_t Rmin=0; Int_t Rmax=0; //To avoid warning |
150 | Int_t Smin=0; Int_t Smax=0; //To avoid warning | |
1a42d4f2 | 151 | AliHeader *header = gAlice->GetHeader(); |
152 | AliGenEventHeader* genHeader = header->GenEventHeader(); | |
153 | TArrayF *o = new TArrayF(3); | |
154 | genHeader->PrimaryVertex(*o); | |
155 | Float_t zVertex=o->At(2); | |
156 | for (ivol=0; ivol<NumVolums; ivol++) | |
cb1df35e | 157 | { |
1a42d4f2 | 158 | Float_t realZ=zVertex+z[ivol]; |
159 | theta=TMath::ATan(rin[ivol]/TMath::Abs(realZ)); | |
160 | etain = - TMath::Log( TMath::Tan(theta/2.)); | |
161 | theta=TMath::ATan(rout[ivol]/TMath::Abs(realZ)); | |
162 | etaout=- TMath::Log( TMath::Tan(theta/2.)); | |
163 | NumberOfEtaIntervals[ivol]=Int_t ((etain-etaout)*10); | |
164 | eta=etain; | |
165 | for (Int_t e1=0;e1<=NumberOfEtaIntervals[ivol];e1++) | |
cb1df35e | 166 | { |
1a42d4f2 | 167 | theta = 2.*TMath::ATan (TMath::Exp (-eta)); |
168 | Float_t radmin = TMath::Abs(realZ) * (TMath::Tan (theta)); | |
169 | Rmin= Int_t ( (radmin-rin[ivol])*NumberOfRings[ivol]/(rout[ivol]-rin[ivol])); | |
170 | eta=eta-0.1; | |
171 | theta = 2.*TMath::ATan (TMath::Exp (-eta)); | |
172 | rad = TMath::Abs(realZ) * (TMath::Tan (theta)); | |
173 | Rmax=Int_t( (rad-rin[ivol])*NumberOfRings[ivol]/(rout[ivol]-rin[ivol])); | |
cb1df35e | 174 | ZeroPads=0; |
175 | Smin=0; | |
1a42d4f2 | 176 | Smax=NumberOfSectors[ivol]; |
cb1df35e | 177 | for (Int_t iring=Rmin; iring<Rmax; iring++) |
178 | { | |
179 | NumberOfPads=(Rmax-Rmin)*(Smax-Smin); | |
180 | for | |
181 | (Int_t isector=1; | |
1a42d4f2 | 182 | isector<=NumberOfSectors[ivol]; |
cb1df35e | 183 | isector++) |
1a42d4f2 | 184 | if(PadADC[ivol][isector-1][iring-1]<zeroADC) |
cb1df35e | 185 | ZeroPads++; |
186 | } //ring | |
cb1df35e | 187 | Float_t zerosRatio= |
188 | (Float_t)ZeroPads/(Float_t)NumberOfPads; | |
cb1df35e | 189 | RecParticles[0]=ivol; |
190 | RecParticles[1]=Smin; | |
191 | RecParticles[2]=Smax; | |
192 | RecParticles[3]=Rmin; | |
193 | RecParticles[4]=Rmax; | |
194 | if (zerosRatio>0.1 ||(ivol==2||ivol==4)) | |
195 | RecParticles[5]= | |
196 | Determination_by_Poisson | |
1a42d4f2 | 197 | (PadADC,ivol+1,Rmin,Rmax,Smin,Smax); |
cb1df35e | 198 | else |
199 | RecParticles[5]= | |
200 | Determination_by_thresholds | |
1a42d4f2 | 201 | (PadADC,ivol+1,Rmin,Rmax,Smin,Smax); |
cb1df35e | 202 | new((*fReconParticles)[nRecPart++]) |
203 | AliFMDReconstParticles(RecParticles); | |
1a42d4f2 | 204 | } // eta |
205 | } // volume | |
cb1df35e | 206 | |
cb1df35e | 207 | }//if FMD |
1a42d4f2 | 208 | gAlice->TreeR()->Reset(); |
209 | gAlice->TreeR()->Fill(); | |
210 | gAlice->TreeR()->Write(0,TObject::kOverwrite); | |
dc8af42e | 211 | } //event loop |
1a42d4f2 | 212 | cout<<"\nAliFMDReconstruction::Exec finished"<<endl; |
cb1df35e | 213 | }; |
dc8af42e | 214 | |
cb1df35e | 215 | //------------------------------------------------------------ |
216 | Int_t AliFMDReconstruction::Determination_by_thresholds | |
217 | (Int_t PadADC[][50][800],Int_t volume, Int_t Rmin, Int_t Rmax, | |
218 | Int_t Smin, Int_t Smax) | |
dc8af42e | 219 | { |
1a42d4f2 | 220 | cout<<"\nStart threshold method\n"; |
cb1df35e | 221 | |
222 | Int_t thresholdInner[30]={ | |
223 | 0, 14, 28, 42, 57, | |
224 | 72, 89, 104, 124, 129, | |
225 | 164, 174, 179, 208, 228, | |
226 | 248, 268, 317, 337, 357, | |
227 | 392, 407, 416, 426, 436, | |
228 | 461, 468, 493, 506, 515}; | |
229 | ||
230 | Int_t thresholdOuter[30]={0, 18, 48, 77, 105, | |
231 | 132, 165, 198, 231, | |
232 | 264, 286, 308, 334, | |
233 | 352, 374, 418, 440, | |
234 | 462, 484, 506, 528, | |
235 | 550, 572, 594, 616}; | |
236 | Int_t threshold[30]; | |
237 | for (Int_t it=0; it<30; it++) { | |
238 | if(volume==1||volume==3||volume==5) threshold[it]=thresholdInner[it]; | |
239 | if(volume==2||volume==4) threshold[it]=thresholdOuter[it]; | |
240 | } | |
241 | Int_t threshold_array_size = 30; | |
242 | Int_t NumPart=0; | |
243 | //Inner Si | |
244 | for (Int_t iring=Rmin; iring<Rmax; iring++) | |
245 | { | |
246 | for (Int_t isector=Smin; isector<Smax; isector++) | |
247 | { | |
248 | for (int i=0;i<threshold_array_size-1;i++) | |
249 | { | |
250 | if(PadADC[volume-1][isector][iring]>threshold[i] | |
251 | &&PadADC[volume-1][isector][iring]<=threshold[i+1]) | |
252 | { | |
253 | NumPart+=i; | |
254 | break; | |
255 | }; // if in threshol interval | |
256 | }; //threshold_array_size | |
257 | }; //iring | |
258 | }; //sector | |
1a42d4f2 | 259 | cout<<"\nEnd threshol method"<<endl; |
cb1df35e | 260 | return NumPart; |
dc8af42e | 261 | } |
cb1df35e | 262 | |
263 | ||
264 | //__________________________________________________________________ | |
265 | ||
266 | Int_t AliFMDReconstruction::Determination_by_Poisson (Int_t PadADC[][50][800], | |
267 | Int_t vol, Int_t rmin, Int_t rmax, | |
268 | Int_t secmin, Int_t secmax) | |
dc8af42e | 269 | { |
1a42d4f2 | 270 | // cout<<"\nStart Poisson method"; |
cb1df35e | 271 | Int_t threshold_adc=1; |
272 | Int_t zeropads=0; | |
273 | for (Int_t i=rmin;i<rmax;i++) | |
274 | { | |
275 | for (Int_t j=secmin;j<secmax;j++) | |
276 | { | |
277 | if (PadADC[vol-1][j][i]<threshold_adc) zeropads++; | |
278 | }; | |
279 | }; | |
280 | Float_t lambda=-TMath::Log(Float_t(zeropads)/ | |
281 | ( Float_t(secmax-secmin)* | |
282 | Float_t(rmax-rmin))); //+1 zdes' ne nado | |
283 | Int_t Recon=(Int_t)(lambda*(secmax-secmin)*(rmax-rmin)); //+1 zdes' ne nado | |
284 | // cout<<"\nEnd Poisson method"<<endl; | |
285 | return Recon; | |
286 | }; | |
287 | ||
288 | //------------------------------------------------------------------ | |
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