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7ca4655f | 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 | /* $Id$ */ | |
17 | ||
ac903f1b | 18 | //____________________________________________________________________ |
19 | // | |
20 | // AliITSMultReconstructor - find clusters in the pixels (theta and | |
21 | // phi) and tracklets. | |
22 | // | |
23 | // These can be used to extract charged particles multiplcicity from the ITS. | |
24 | // | |
25 | // A tracklet consist of two ITS clusters, one in the first pixel | |
26 | // layer and one in the second. The clusters are associates if the | |
27 | // differencies in Phi (azimuth) and Zeta (longitudinal) are inside | |
28 | // a fiducial volume. In case of multiple candidates it is selected the | |
29 | // candidate with minimum distance in Phi. | |
30 | // The parameter AssociationChoice allows to control if two clusters | |
31 | // in layer 2 can be associated to the same cluster in layer 1 or not. | |
32 | // | |
33 | // ----------------------------------------------------------------- | |
34 | // | |
3ef75756 | 35 | // NOTE: The cuts on phi and zeta depends on the interacting system (p-p |
36 | // or Pb-Pb). Please, check the file AliITSMultReconstructor.h and be | |
37 | // sure that SetPhiWindow and SetZetaWindow are defined accordingly. | |
ac903f1b | 38 | // |
3ef75756 | 39 | // |
40 | // | |
ac903f1b | 41 | // |
42 | //____________________________________________________________________ | |
43 | ||
7ca4655f | 44 | #include <TClonesArray.h> |
45 | #include <TH1F.h> | |
46 | #include <TH2F.h> | |
47 | #include <TTree.h> | |
ac903f1b | 48 | |
7ca4655f | 49 | #include "AliITSMultReconstructor.h" |
b51872de | 50 | #include "AliITSRecPoint.h" |
ac903f1b | 51 | #include "AliITSgeom.h" |
52 | #include "AliLog.h" | |
53 | ||
54 | //____________________________________________________________________ | |
0762f3a8 | 55 | ClassImp(AliITSMultReconstructor) |
ac903f1b | 56 | |
3ef75756 | 57 | |
ac903f1b | 58 | //____________________________________________________________________ |
7537d03c | 59 | AliITSMultReconstructor::AliITSMultReconstructor(): |
60 | fGeometry(0), | |
61 | fClustersLay1(0), | |
62 | fClustersLay2(0), | |
63 | fTracklets(0), | |
64 | fAssociationFlag(0), | |
65 | fNClustersLay1(0), | |
66 | fNClustersLay2(0), | |
67 | fNTracklets(0), | |
68 | fPhiWindow(0), | |
69 | fZetaWindow(0), | |
70 | fOnlyOneTrackletPerC2(0), | |
71 | fHistOn(0), | |
72 | fhClustersDPhiAcc(0), | |
73 | fhClustersDThetaAcc(0), | |
74 | fhClustersDZetaAcc(0), | |
75 | fhClustersDPhiAll(0), | |
76 | fhClustersDThetaAll(0), | |
77 | fhClustersDZetaAll(0), | |
78 | fhDPhiVsDThetaAll(0), | |
79 | fhDPhiVsDThetaAcc(0), | |
80 | fhDPhiVsDZetaAll(0), | |
81 | fhDPhiVsDZetaAcc(0), | |
82 | fhetaTracklets(0), | |
83 | fhphiTracklets(0), | |
84 | fhetaClustersLay1(0), | |
85 | fhphiClustersLay1(0){ | |
3ef75756 | 86 | // Method to reconstruct the charged particles multiplicity with the |
87 | // SPD (tracklets). | |
ac903f1b | 88 | |
89 | fGeometry =0; | |
90 | ||
91 | SetHistOn(); | |
92 | SetPhiWindow(); | |
93 | SetZetaWindow(); | |
94 | SetOnlyOneTrackletPerC2(); | |
95 | ||
96 | fClustersLay1 = new Float_t*[300000]; | |
97 | fClustersLay2 = new Float_t*[300000]; | |
98 | fTracklets = new Float_t*[300000]; | |
99 | fAssociationFlag = new Bool_t[300000]; | |
100 | ||
101 | for(Int_t i=0; i<300000; i++) { | |
102 | fClustersLay1[i] = new Float_t[3]; | |
103 | fClustersLay2[i] = new Float_t[3]; | |
104 | fTracklets[i] = new Float_t[3]; | |
105 | fAssociationFlag[i] = kFALSE; | |
106 | } | |
107 | ||
108 | // definition of histograms | |
ddced3c8 | 109 | fhClustersDPhiAcc = new TH1F("dphiacc", "dphi", 100,-0.1,0.1); |
110 | fhClustersDPhiAcc->SetDirectory(0); | |
111 | fhClustersDThetaAcc = new TH1F("dthetaacc","dtheta",100,-0.1,0.1); | |
112 | fhClustersDThetaAcc->SetDirectory(0); | |
113 | fhClustersDZetaAcc = new TH1F("dzetaacc","dzeta",100,-1.,1.); | |
114 | fhClustersDZetaAcc->SetDirectory(0); | |
115 | ||
116 | fhDPhiVsDZetaAcc = new TH2F("dphiVsDzetaacc","",100,-1.,1.,100,-0.1,0.1); | |
117 | fhDPhiVsDZetaAcc->SetDirectory(0); | |
118 | fhDPhiVsDThetaAcc = new TH2F("dphiVsDthetaAcc","",100,-0.1,0.1,100,-0.1,0.1); | |
ac903f1b | 119 | fhDPhiVsDThetaAcc->SetDirectory(0); |
120 | ||
ddced3c8 | 121 | fhClustersDPhiAll = new TH1F("dphiall", "dphi", 100,-0.5,0.5); |
122 | fhClustersDPhiAll->SetDirectory(0); | |
123 | fhClustersDThetaAll = new TH1F("dthetaall","dtheta",100,-0.5,0.5); | |
124 | fhClustersDThetaAll->SetDirectory(0); | |
125 | fhClustersDZetaAll = new TH1F("dzetaall","dzeta",100,-5.,5.); | |
126 | fhClustersDZetaAll->SetDirectory(0); | |
127 | ||
128 | fhDPhiVsDZetaAll = new TH2F("dphiVsDzetaall","",100,-5.,5.,100,-0.5,0.5); | |
129 | fhDPhiVsDZetaAll->SetDirectory(0); | |
130 | fhDPhiVsDThetaAll = new TH2F("dphiVsDthetaAll","",100,-0.5,0.5,100,-0.5,0.5); | |
131 | fhDPhiVsDThetaAll->SetDirectory(0); | |
132 | ||
133 | fhetaTracklets = new TH1F("etaTracklets", "eta", 100,-2.,2.); | |
ddced3c8 | 134 | fhphiTracklets = new TH1F("phiTracklets", "phi", 100,-3.14159,3.14159); |
ddced3c8 | 135 | fhetaClustersLay1 = new TH1F("etaClustersLay1", "etaCl1", 100,-2.,2.); |
ddced3c8 | 136 | fhphiClustersLay1 = new TH1F("phiClustersLay1", "phiCl1", 100,-3.141,3.141); |
3ef75756 | 137 | |
ac903f1b | 138 | } |
ddced3c8 | 139 | |
3ef75756 | 140 | //______________________________________________________________________ |
7537d03c | 141 | AliITSMultReconstructor::AliITSMultReconstructor(const AliITSMultReconstructor &mr) : TObject(mr), |
142 | fGeometry(mr.fGeometry), | |
143 | fClustersLay1(mr.fClustersLay1), | |
144 | fClustersLay2(mr.fClustersLay2), | |
145 | fTracklets(mr.fTracklets), | |
146 | fAssociationFlag(mr.fAssociationFlag), | |
147 | fNClustersLay1(mr.fNClustersLay1), | |
148 | fNClustersLay2(mr.fNClustersLay2), | |
149 | fNTracklets(mr.fNTracklets), | |
150 | fPhiWindow(mr.fPhiWindow), | |
151 | fZetaWindow(mr.fZetaWindow), | |
152 | fOnlyOneTrackletPerC2(mr.fOnlyOneTrackletPerC2), | |
153 | fHistOn(mr.fHistOn), | |
154 | fhClustersDPhiAcc(mr.fhClustersDPhiAcc), | |
155 | fhClustersDThetaAcc(mr.fhClustersDThetaAcc), | |
156 | fhClustersDZetaAcc(mr.fhClustersDZetaAcc), | |
157 | fhClustersDPhiAll(mr.fhClustersDPhiAll), | |
158 | fhClustersDThetaAll(mr.fhClustersDThetaAll), | |
159 | fhClustersDZetaAll(mr.fhClustersDZetaAll), | |
160 | fhDPhiVsDThetaAll(mr.fhDPhiVsDThetaAll), | |
161 | fhDPhiVsDThetaAcc(mr.fhDPhiVsDThetaAcc), | |
162 | fhDPhiVsDZetaAll(mr.fhDPhiVsDZetaAll), | |
163 | fhDPhiVsDZetaAcc(mr.fhDPhiVsDZetaAcc), | |
164 | fhetaTracklets(mr.fhetaTracklets), | |
165 | fhphiTracklets(mr.fhphiTracklets), | |
166 | fhetaClustersLay1(mr.fhetaClustersLay1), | |
167 | fhphiClustersLay1(mr.fhphiClustersLay1) { | |
3ef75756 | 168 | // Copy constructor |
7537d03c | 169 | |
3ef75756 | 170 | } |
171 | ||
172 | //______________________________________________________________________ | |
7537d03c | 173 | AliITSMultReconstructor& AliITSMultReconstructor::operator=(const AliITSMultReconstructor& mr){ |
3ef75756 | 174 | // Assignment operator |
7537d03c | 175 | this->~AliITSMultReconstructor(); |
176 | new(this) AliITSMultReconstructor(mr); | |
3ef75756 | 177 | return *this; |
178 | } | |
179 | ||
180 | //______________________________________________________________________ | |
181 | AliITSMultReconstructor::~AliITSMultReconstructor(){ | |
182 | // Destructor | |
1ba5b31c | 183 | |
184 | // delete histograms | |
185 | delete fhClustersDPhiAcc; | |
186 | delete fhClustersDThetaAcc; | |
187 | delete fhClustersDZetaAcc; | |
188 | delete fhClustersDPhiAll; | |
189 | delete fhClustersDThetaAll; | |
190 | delete fhClustersDZetaAll; | |
191 | delete fhDPhiVsDThetaAll; | |
192 | delete fhDPhiVsDThetaAcc; | |
193 | delete fhDPhiVsDZetaAll; | |
194 | delete fhDPhiVsDZetaAcc; | |
195 | delete fhetaTracklets; | |
196 | delete fhphiTracklets; | |
197 | delete fhetaClustersLay1; | |
198 | delete fhphiClustersLay1; | |
199 | ||
200 | // delete arrays | |
201 | for(Int_t i=0; i<300000; i++) { | |
202 | delete [] fClustersLay1[i]; | |
203 | delete [] fClustersLay2[i]; | |
204 | delete [] fTracklets[i]; | |
ddced3c8 | 205 | } |
1ba5b31c | 206 | delete [] fClustersLay1; |
207 | delete [] fClustersLay2; | |
208 | delete [] fTracklets; | |
209 | ||
210 | delete [] fAssociationFlag; | |
ddced3c8 | 211 | } |
ac903f1b | 212 | |
213 | //____________________________________________________________________ | |
214 | void | |
215 | AliITSMultReconstructor::Reconstruct(TTree* clusterTree, Float_t* vtx, Float_t* /* vtxRes*/) { | |
216 | // | |
217 | // - calls LoadClusterArray that finds the position of the clusters | |
218 | // (in global coord) | |
219 | // - convert the cluster coordinates to theta, phi (seen from the | |
220 | // interaction vertex). The third coordinate is used for .... | |
221 | // - makes an array of tracklets | |
222 | // | |
223 | // After this method has been called, the clusters of the two layers | |
224 | // and the tracklets can be retrieved by calling the Get'er methods. | |
225 | ||
ac903f1b | 226 | // reset counters |
227 | fNClustersLay1 = 0; | |
228 | fNClustersLay2 = 0; | |
229 | fNTracklets = 0; | |
230 | ||
231 | // loading the clusters | |
232 | LoadClusterArrays(clusterTree); | |
3ef75756 | 233 | |
ac903f1b | 234 | // find the tracklets |
235 | AliDebug(1,"Looking for tracklets... "); | |
236 | ||
237 | //########################################################### | |
238 | // Loop on layer 1 : finding theta, phi and z | |
239 | for (Int_t iC1=0; iC1<fNClustersLay1; iC1++) { | |
240 | Float_t x = fClustersLay1[iC1][0] - vtx[0]; | |
241 | Float_t y = fClustersLay1[iC1][1] - vtx[1]; | |
242 | Float_t z = fClustersLay1[iC1][2] - vtx[2]; | |
ddced3c8 | 243 | |
ac903f1b | 244 | Float_t r = TMath::Sqrt(TMath::Power(x,2) + |
245 | TMath::Power(y,2) + | |
246 | TMath::Power(z,2)); | |
247 | ||
248 | fClustersLay1[iC1][0] = TMath::ACos(z/r); // Store Theta | |
ddced3c8 | 249 | fClustersLay1[iC1][1] = TMath::ATan2(x,y); // Store Phi |
ac903f1b | 250 | fClustersLay1[iC1][2] = z/r; // Store scaled z |
ddced3c8 | 251 | if (fHistOn) { |
252 | Float_t eta=fClustersLay1[iC1][0]; | |
253 | eta= TMath::Tan(eta/2.); | |
254 | eta=-TMath::Log(eta); | |
255 | fhetaClustersLay1->Fill(eta); | |
256 | fhphiClustersLay1->Fill(fClustersLay1[iC1][1]); | |
257 | } | |
258 | } | |
ac903f1b | 259 | |
260 | // Loop on layer 2 : finding theta, phi and r | |
261 | for (Int_t iC2=0; iC2<fNClustersLay2; iC2++) { | |
262 | Float_t x = fClustersLay2[iC2][0] - vtx[0]; | |
263 | Float_t y = fClustersLay2[iC2][1] - vtx[1]; | |
264 | Float_t z = fClustersLay2[iC2][2] - vtx[2]; | |
ddced3c8 | 265 | |
ac903f1b | 266 | Float_t r = TMath::Sqrt(TMath::Power(x,2) + |
267 | TMath::Power(y,2) + | |
268 | TMath::Power(z,2)); | |
269 | ||
270 | fClustersLay2[iC2][0] = TMath::ACos(z/r); // Store Theta | |
ddced3c8 | 271 | fClustersLay2[iC2][1] = TMath::ATan2(x,y); // Store Phi |
ac903f1b | 272 | fClustersLay2[iC2][2] = z; // Store z |
273 | ||
ddced3c8 | 274 | // this only needs to be initialized for the fNClustersLay2 first associations |
ac903f1b | 275 | fAssociationFlag[iC2] = kFALSE; |
276 | } | |
277 | ||
278 | //########################################################### | |
279 | // Loop on layer 1 | |
280 | for (Int_t iC1=0; iC1<fNClustersLay1; iC1++) { | |
281 | ||
282 | // reset of variables for multiple candidates | |
ddced3c8 | 283 | Int_t iC2WithBestDist = 0; // reset |
3ef75756 | 284 | Float_t distmin = 100.; // just to put a huge number! |
ddced3c8 | 285 | Float_t dPhimin = 0.; // Used for histograms only! |
286 | Float_t dThetamin = 0.; // Used for histograms only! | |
287 | Float_t dZetamin = 0.; // Used for histograms only! | |
ac903f1b | 288 | |
289 | // Loop on layer 2 | |
290 | for (Int_t iC2=0; iC2<fNClustersLay2; iC2++) { | |
291 | ||
292 | // The following excludes double associations | |
293 | if (!fAssociationFlag[iC2]) { | |
294 | ||
295 | // find the difference in angles | |
296 | Float_t dTheta = fClustersLay2[iC2][0] - fClustersLay1[iC1][0]; | |
297 | Float_t dPhi = fClustersLay2[iC2][1] - fClustersLay1[iC1][1]; | |
298 | ||
299 | // find the difference in z (between linear projection from layer 1 | |
300 | // and the actual point: Dzeta= z1/r1*r2 -z2) | |
ddced3c8 | 301 | Float_t r2 = fClustersLay2[iC2][2]/TMath::Cos(fClustersLay2[iC2][0]); |
302 | Float_t dZeta = fClustersLay1[iC1][2]*r2 - fClustersLay2[iC2][2]; | |
303 | ||
304 | if (fHistOn) { | |
305 | fhClustersDPhiAll->Fill(dPhi); | |
306 | fhClustersDThetaAll->Fill(dTheta); | |
307 | fhClustersDZetaAll->Fill(dZeta); | |
ac903f1b | 308 | fhDPhiVsDThetaAll->Fill(dTheta, dPhi); |
ddced3c8 | 309 | fhDPhiVsDZetaAll->Fill(dZeta, dPhi); |
ac903f1b | 310 | } |
311 | // make "elliptical" cut in Phi and Zeta! | |
312 | Float_t d = TMath::Sqrt(TMath::Power(dPhi/fPhiWindow,2) + TMath::Power(dZeta/fZetaWindow,2)); | |
3ef75756 | 313 | |
ac903f1b | 314 | if (d>1) continue; |
315 | ||
ddced3c8 | 316 | //look for the minimum distance: the minimum is in iC2WithBestDist |
3ef75756 | 317 | if (TMath::Sqrt(dZeta*dZeta+(r2*dPhi*r2*dPhi)) < distmin ) { |
318 | distmin=TMath::Sqrt(dZeta*dZeta + (r2*dPhi*r2*dPhi)); | |
ddced3c8 | 319 | dPhimin = dPhi; |
320 | dThetamin = dTheta; | |
321 | dZetamin = dZeta; | |
322 | iC2WithBestDist = iC2; | |
ac903f1b | 323 | } |
324 | } | |
325 | } // end of loop over clusters in layer 2 | |
326 | ||
3ef75756 | 327 | if (distmin<100) { // This means that a cluster in layer 2 was found that mathes with iC1 |
328 | ||
329 | if (fHistOn) { | |
330 | fhClustersDPhiAcc->Fill(dPhimin); | |
331 | fhClustersDThetaAcc->Fill(dThetamin); | |
332 | fhClustersDZetaAcc->Fill(dZetamin); | |
333 | fhDPhiVsDThetaAcc->Fill(dThetamin, dPhimin); | |
334 | fhDPhiVsDZetaAcc->Fill(dZetamin, dPhimin); | |
335 | } | |
ac903f1b | 336 | |
ddced3c8 | 337 | if (fOnlyOneTrackletPerC2) fAssociationFlag[iC2WithBestDist] = kTRUE; // flag the association |
ac903f1b | 338 | |
339 | // store the tracklet | |
340 | ||
ddced3c8 | 341 | // use the theta from the clusters in the first layer |
342 | fTracklets[fNTracklets][0] = fClustersLay1[iC1][0]; | |
ac903f1b | 343 | // use the phi from the clusters in the first layer |
344 | fTracklets[fNTracklets][1] = fClustersLay1[iC1][1]; | |
345 | // Store the difference between phi1 and phi2 | |
ddced3c8 | 346 | fTracklets[fNTracklets][2] = fClustersLay1[iC1][1] - fClustersLay2[iC2WithBestDist][1]; |
347 | ||
3ef75756 | 348 | if (fHistOn) { |
349 | Float_t eta=fTracklets[fNTracklets][0]; | |
350 | eta= TMath::Tan(eta/2.); | |
351 | eta=-TMath::Log(eta); | |
352 | fhetaTracklets->Fill(eta); | |
353 | fhphiTracklets->Fill(fTracklets[fNTracklets][1]); | |
354 | } | |
ac903f1b | 355 | |
3ef75756 | 356 | AliDebug(1,Form(" Adding tracklet candidate %d ", fNTracklets)); |
357 | AliDebug(1,Form(" Cl. %d of Layer 1 and %d of Layer 2", iC1, | |
358 | iC2WithBestDist)); | |
359 | fNTracklets++; | |
ac903f1b | 360 | } |
3ef75756 | 361 | |
362 | // Delete the following else if you do not want to save Clusters! | |
363 | ||
364 | else { // This means that the cluster has not been associated | |
365 | ||
366 | // store the cluster | |
367 | ||
368 | fTracklets[fNTracklets][0] = fClustersLay1[iC1][0]; | |
369 | fTracklets[fNTracklets][1] = fClustersLay1[iC1][1]; | |
370 | // Store a flag. This will indicate that the "tracklet" | |
371 | // was indeed a single cluster! | |
372 | fTracklets[fNTracklets][2] = -999999.; | |
373 | AliDebug(1,Form(" Adding a single cluster %d (cluster %d of layer 1)", | |
374 | fNTracklets, iC1)); | |
375 | fNTracklets++; | |
376 | } | |
377 | ||
ac903f1b | 378 | } // end of loop over clusters in layer 1 |
379 | ||
380 | AliDebug(1,Form("%d tracklets found", fNTracklets)); | |
381 | } | |
382 | ||
383 | //____________________________________________________________________ | |
384 | void | |
385 | AliITSMultReconstructor::LoadClusterArrays(TTree* itsClusterTree) { | |
386 | // This method | |
387 | // - gets the clusters from the cluster tree | |
388 | // - convert them into global coordinates | |
389 | // - store them in the internal arrays | |
390 | ||
391 | AliDebug(1,"Loading clusters ..."); | |
392 | ||
393 | fNClustersLay1 = 0; | |
394 | fNClustersLay2 = 0; | |
395 | ||
b51872de | 396 | TClonesArray* itsClusters = new TClonesArray("AliITSRecPoint"); |
397 | TBranch* itsClusterBranch=itsClusterTree->GetBranch("ITSRecPoints"); | |
ddced3c8 | 398 | |
ac903f1b | 399 | itsClusterBranch->SetAddress(&itsClusters); |
ddced3c8 | 400 | |
ac903f1b | 401 | Int_t nItsSubs = (Int_t)itsClusterTree->GetEntries(); |
ddced3c8 | 402 | |
ac903f1b | 403 | // loop over the its subdetectors |
404 | for (Int_t iIts=0; iIts < nItsSubs; iIts++) { | |
405 | ||
406 | if (!itsClusterTree->GetEvent(iIts)) | |
407 | continue; | |
408 | ||
409 | Int_t nClusters = itsClusters->GetEntriesFast(); | |
410 | ||
411 | // stuff needed to get the global coordinates | |
412 | Double_t rot[9]; fGeometry->GetRotMatrix(iIts,rot); | |
413 | Int_t lay,lad,det; fGeometry->GetModuleId(iIts,lay,lad,det); | |
414 | Float_t tx,ty,tz; fGeometry->GetTrans(lay,lad,det,tx,ty,tz); | |
415 | ||
416 | // Below: | |
417 | // "alpha" is the angle from the global X-axis to the | |
418 | // local GEANT X'-axis ( rot[0]=cos(alpha) and rot[1]=sin(alpha) ) | |
419 | // "phi" is the angle from the global X-axis to the | |
420 | // local cluster X"-axis | |
421 | ||
422 | Double_t alpha = TMath::ATan2(rot[1],rot[0])+TMath::Pi(); | |
423 | Double_t itsPhi = TMath::Pi()/2+alpha; | |
424 | ||
425 | if (lay==1) itsPhi+=TMath::Pi(); | |
426 | Double_t cp=TMath::Cos(itsPhi), sp=TMath::Sin(itsPhi); | |
427 | Double_t r=tx*cp+ty*sp; | |
428 | ||
429 | // loop over clusters | |
430 | while(nClusters--) { | |
b51872de | 431 | AliITSRecPoint* cluster = (AliITSRecPoint*)itsClusters->UncheckedAt(nClusters); |
ac903f1b | 432 | |
433 | if (cluster->GetLayer()>1) | |
434 | continue; | |
435 | ||
436 | Float_t x = r*cp - cluster->GetY()*sp; | |
437 | Float_t y = r*sp + cluster->GetY()*cp; | |
438 | Float_t z = cluster->GetZ(); | |
439 | ||
440 | if (cluster->GetLayer()==0) { | |
441 | fClustersLay1[fNClustersLay1][0] = x; | |
442 | fClustersLay1[fNClustersLay1][1] = y; | |
443 | fClustersLay1[fNClustersLay1][2] = z; | |
444 | fNClustersLay1++; | |
445 | } | |
446 | if (cluster->GetLayer()==1) { | |
447 | fClustersLay2[fNClustersLay2][0] = x; | |
448 | fClustersLay2[fNClustersLay2][1] = y; | |
449 | fClustersLay2[fNClustersLay2][2] = z; | |
450 | fNClustersLay2++; | |
451 | } | |
452 | ||
453 | }// end of cluster loop | |
454 | } // end of its "subdetector" loop | |
455 | ||
456 | AliDebug(1,Form("(clusters in layer 1 : %d, layer 2: %d)",fNClustersLay1,fNClustersLay2)); | |
457 | } | |
458 | //____________________________________________________________________ | |
459 | void | |
460 | AliITSMultReconstructor::SaveHists() { | |
3ef75756 | 461 | // This method save the histograms on the output file |
462 | // (only if fHistOn is TRUE). | |
ac903f1b | 463 | |
464 | if (!fHistOn) | |
465 | return; | |
466 | ||
ddced3c8 | 467 | fhClustersDPhiAll->Write(); |
468 | fhClustersDThetaAll->Write(); | |
469 | fhClustersDZetaAll->Write(); | |
ac903f1b | 470 | fhDPhiVsDThetaAll->Write(); |
ddced3c8 | 471 | fhDPhiVsDZetaAll->Write(); |
472 | ||
473 | fhClustersDPhiAcc->Write(); | |
474 | fhClustersDThetaAcc->Write(); | |
475 | fhClustersDZetaAcc->Write(); | |
ac903f1b | 476 | fhDPhiVsDThetaAcc->Write(); |
ddced3c8 | 477 | fhDPhiVsDZetaAcc->Write(); |
478 | ||
479 | fhetaTracklets->Write(); | |
480 | fhphiTracklets->Write(); | |
481 | fhetaClustersLay1->Write(); | |
482 | fhphiClustersLay1->Write(); | |
ac903f1b | 483 | } |