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13918578 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-2003, 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 | ||
bf6adc12 | 16 | /* $Id$ */ |
17 | ||
13918578 | 18 | //////////////////////////////////////////////////// |
19 | // Stand alone tracker class // | |
20 | // Origin: Elisabetta Crescio // | |
21 | // e-mail: crescio@to.infn.it // | |
22 | // tracks are saved as AliITStrackV2 objects // | |
23 | //////////////////////////////////////////////////// | |
24 | ||
aa4b78e1 | 25 | #include <stdlib.h> |
bf6adc12 | 26 | |
27 | #include <TArrayI.h> | |
13918578 | 28 | #include <TBranch.h> |
29 | #include <TMath.h> | |
30 | #include <TObjArray.h> | |
31 | #include <TTree.h> | |
bf6adc12 | 32 | |
33 | #include "AliESD.h" | |
34 | #include "AliESDVertex.h" | |
35 | #include "AliESDtrack.h" | |
36 | #include "AliITSRiemannFit.h" | |
37 | #include "AliITSVertexer.h" | |
13918578 | 38 | #include "AliITSclusterTable.h" |
39 | #include "AliITSclusterV2.h" | |
40 | #include "AliITSgeom.h" | |
13918578 | 41 | #include "AliITStrackSA.h" |
bf6adc12 | 42 | #include "AliITStrackerSA.h" |
43 | #include "AliRun.h" | |
13918578 | 44 | |
45 | ClassImp(AliITStrackerSA) | |
46 | ||
47 | //____________________________________________________________________________ | |
e43c066c | 48 | AliITStrackerSA::AliITStrackerSA():AliITStrackerMI(){ |
13918578 | 49 | // Default constructor |
50 | Init(); | |
627b6db6 | 51 | |
13918578 | 52 | } |
2257f27e | 53 | //____________________________________________________________________________ |
e43c066c | 54 | AliITStrackerSA::AliITStrackerSA(AliITSgeom *geom):AliITStrackerMI(geom) |
2257f27e | 55 | { |
56 | // Standard constructor (Vertex is known and passed to this obj.) | |
57 | Init(); | |
58 | fVert = 0; | |
59 | fGeom = geom; | |
627b6db6 | 60 | |
2257f27e | 61 | } |
62 | ||
13918578 | 63 | //____________________________________________________________________________ |
e43c066c | 64 | AliITStrackerSA::AliITStrackerSA(AliITSgeom *geom, AliESDVertex *vert):AliITStrackerMI(geom) |
13918578 | 65 | { |
66 | // Standard constructor (Vertex is known and passed to this obj.) | |
67 | Init(); | |
68 | fVert = vert; | |
69 | fGeom = geom; | |
627b6db6 | 70 | |
13918578 | 71 | } |
72 | ||
13918578 | 73 | //____________________________________________________________________________ |
e43c066c | 74 | AliITStrackerSA::AliITStrackerSA(AliITSgeom *geom, AliITSVertexer *vertexer):AliITStrackerMI(geom) |
13918578 | 75 | { |
76 | // Standard constructor (Vertex is unknown - vertexer is passed to this obj) | |
77 | Init(); | |
78 | fVertexer = vertexer; | |
79 | fGeom = geom; | |
627b6db6 | 80 | |
13918578 | 81 | } |
82 | ||
83 | //____________________________________________________________________________ | |
e43c066c | 84 | AliITStrackerSA::AliITStrackerSA(AliITStrackerSA& tracker):AliITStrackerMI(){ |
13918578 | 85 | // Copy constructor |
86 | fPhiEstimate = tracker.fPhiEstimate; | |
87 | for(Int_t i=0;i<2;i++){ | |
88 | fPoint1[i]=tracker.fPoint1[i]; | |
89 | fPoint2[i]=tracker.fPoint2[i]; | |
90 | fPoint3[i]=tracker.fPoint3[i]; | |
91 | fPointc[i]=tracker.fPointc[i]; | |
92 | } | |
93 | fLambdac = tracker.fLambdac; | |
94 | fPhic = tracker.fPhic; | |
95 | fCoef1 = tracker.fCoef1; | |
96 | fCoef2 = tracker.fCoef2; | |
97 | fCoef3 = tracker.fCoef3; | |
98 | fNloop = tracker.fNloop; | |
99 | fPhiWin = tracker.fPhiWin; | |
100 | fLambdaWin = tracker.fLambdaWin; | |
101 | if(tracker.fVertexer && tracker.fVert){ | |
d681bb2d | 102 | fVert = new AliESDVertex(*tracker.fVert); |
13918578 | 103 | } |
104 | else { | |
105 | fVert = tracker.fVert; | |
106 | } | |
107 | fVertexer = tracker.fVertexer; | |
108 | fGeom = tracker.fGeom; | |
13918578 | 109 | fTable = tracker.fTable; |
4e05ab9a | 110 | fListOfTracks = tracker.fListOfTracks; |
13918578 | 111 | } |
112 | ||
113 | //____________________________________________________________________________ | |
114 | AliITStrackerSA::~AliITStrackerSA(){ | |
115 | // destructor | |
d681bb2d | 116 | // if fVertexer is not null, the AliESDVertex obj. is owned by this class |
13918578 | 117 | // and is deleted here |
118 | if(fVertexer){ | |
119 | if(fVert)delete fVert; | |
120 | } | |
121 | fVert = 0; | |
122 | fVertexer = 0; | |
123 | fGeom = 0; | |
13918578 | 124 | if(fPhiWin)delete []fPhiWin; |
125 | if(fLambdaWin)delete []fLambdaWin; | |
126 | fTable =0; | |
4e05ab9a | 127 | fListOfTracks->Delete(); |
627b6db6 | 128 | } |
13918578 | 129 | |
130 | //____________________________________________________________________________ | |
131 | void AliITStrackerSA::Init(){ | |
132 | // Reset all data members | |
133 | fPhiEstimate=0; | |
134 | for(Int_t i=0;i<3;i++){fPoint1[i]=0;fPoint2[i]=0;fPoint3[i]=0;} | |
135 | fLambdac=0; | |
136 | fPhic=0; | |
137 | fCoef1=0; | |
138 | fCoef2=0; | |
139 | fCoef3=0; | |
140 | fPointc[0]=0; | |
141 | fPointc[1]=0; | |
142 | fVert = 0; | |
143 | fVertexer = 0; | |
144 | fGeom = 0; | |
13918578 | 145 | SetWindowSizes(); |
146 | fTable = 0; | |
2257f27e | 147 | fITSclusters = 0; |
148 | SetSixPoints(); | |
4e05ab9a | 149 | fListOfTracks=new TObjArray(0,0); |
627b6db6 | 150 | } |
13918578 | 151 | //_______________________________________________________________________ |
152 | void AliITStrackerSA::ResetForFinding(){ | |
153 | // Reset data members used in all loops during track finding | |
154 | fPhiEstimate=0; | |
155 | for(Int_t i=0;i<3;i++){fPoint1[i]=0;fPoint2[i]=0;fPoint3[i]=0;} | |
156 | fLambdac=0; | |
157 | fPhic=0; | |
158 | fCoef1=0; | |
159 | fCoef2=0; | |
160 | fCoef3=0; | |
161 | fPointc[0]=0; | |
162 | fPointc[1]=0; | |
4e05ab9a | 163 | fListOfTracks->Delete(); |
13918578 | 164 | } |
165 | //____________________________________________________________________________ | |
2257f27e | 166 | void AliITStrackerSA::FindTracks(TTree *out,Int_t evnumber){ |
13918578 | 167 | |
168 | /************************************************************************** | |
bef31448 | 169 | * This function finds primary tracks. |
13918578 | 170 | * * |
171 | * * | |
172 | * Example: to execute function with only the ITS (no combined tracking * | |
173 | * with TPC+ITS) and requiring 5/6 points to define a good track * | |
2257f27e | 174 | * call SetSixPoinbts(kFALSE) in advance and then * |
175 | * use: FindTracks(treein,treeout,evnumber) * | |
176 | * to execute combined tracking, before using FindTracks, use * | |
13918578 | 177 | * UseFoundTracksV2 * |
178 | *************************************************************************/ | |
179 | ||
2257f27e | 180 | if(!fITSclusters){ |
181 | Fatal("FindTracks","ITS cluster tree is not accessed - Abort!!!\n Please use method SetClusterTree to pass the pointer to the tree\n"); | |
182 | exit(1); | |
183 | } | |
13918578 | 184 | //Get primary vertex |
185 | if(fVertexer){ | |
186 | if(fVert)delete fVert; | |
187 | fVert = fVertexer->FindVertexForCurrentEvent(evnumber); | |
188 | } | |
189 | else { | |
190 | gAlice->GetEvent(evnumber); | |
191 | if(!fVert){ | |
192 | Fatal("FindTracks","Vertex is missing\n"); | |
193 | return; | |
194 | } | |
195 | } | |
196 | Double_t primaryVertex[3]; | |
197 | Double_t errorsprimvert[3]; | |
198 | fVert->GetXYZ(primaryVertex); | |
199 | fVert->GetSigmaXYZ(errorsprimvert); | |
200 | if(errorsprimvert[0]==0 || errorsprimvert[1]==0){ | |
201 | Warning("FindTracks","Set errors on vertex positions x and y at 0.0001"); | |
202 | errorsprimvert[0]=0.0001; | |
203 | errorsprimvert[1]=0.0001; | |
204 | } | |
205 | fVert->PrintStatus(); | |
206 | ||
bef31448 | 207 | |
208 | //Fill array with cluster indices for each module | |
209 | if(!fTable){ | |
210 | fTable = new AliITSclusterTable(fGeom,this,primaryVertex); | |
2257f27e | 211 | fTable->FillArray(fITSclusters); |
212 | fTable->FillArrayCoorAngles(); | |
bef31448 | 213 | } |
214 | ||
13918578 | 215 | |
216 | //Fill tree for found tracks | |
217 | AliITStrackV2* outrack=0; | |
bef31448 | 218 | TBranch* branch=out->Branch("tracks","AliITStrackV2",&outrack,32000,0); |
13918578 | 219 | if (!branch) out->Branch("tracks","AliITStrackV2",&outrack,32000,3); |
220 | else branch->SetAddress(&outrack); | |
221 | ||
222 | ||
037efb75 | 223 | Int_t * firstmod = new Int_t[fGeom->GetNlayers()]; |
13918578 | 224 | for(Int_t i=0;i<fGeom->GetNlayers();i++){ |
225 | firstmod[i]=fGeom->GetModuleIndex(i+1,1,1); | |
226 | } | |
227 | // firstmod [i] number of the first module in the ITS layer i. | |
228 | ||
229 | AliITSlayer &layer=fgLayers[0]; // first layer | |
230 | Int_t ntrack=0; | |
bef31448 | 231 | Int_t dim=layer.GetNumberOfClusters(); |
13918578 | 232 | //loop on the different windows |
233 | for(Int_t nloop=0;nloop<fNloop;nloop++){ | |
bef31448 | 234 | for(Int_t ncl=0;ncl<dim;ncl++){ |
235 | //loop starting from layer 0 | |
13918578 | 236 | ResetForFinding(); |
237 | Int_t pflag=0; | |
238 | AliITSclusterV2* cl = layer.GetCluster(ncl); | |
627b6db6 | 239 | if(cl->IsUsed()==1) continue; |
240 | if(cl->TestBit(kSAflag)==kTRUE) continue; | |
241 | ||
bef31448 | 242 | fPhic = fTable->GetPhiCluster(0,ncl); |
243 | fLambdac = fTable->GetLambdaCluster(0,ncl); | |
13918578 | 244 | fPhiEstimate = fPhic; |
245 | AliITStrackSA* trs = new AliITStrackSA(); | |
246 | fPoint1[0]=primaryVertex[0]; | |
247 | fPoint1[1]=primaryVertex[1]; | |
2257f27e | 248 | fPoint2[0]=fTable->GetXCluster(0,ncl); |
249 | fPoint2[1]=fTable->GetYCluster(0,ncl); | |
13918578 | 250 | |
037efb75 | 251 | Int_t * nn = new Int_t[fGeom->GetNlayers()];//counter for clusters on each layer |
bef31448 | 252 | for(Int_t i=0;i<fGeom->GetNlayers();i++){ nn[i]=0;} |
cfe729e0 | 253 | nn[0] = SearchClusters(0,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); |
254 | nn[1] = SearchClusters(1,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); | |
13918578 | 255 | |
256 | if(nn[1]>0){ | |
bef31448 | 257 | pflag=1; |
258 | fPoint3[0] = fPointc[0]; | |
259 | fPoint3[1] = fPointc[1]; | |
13918578 | 260 | } |
cfe729e0 | 261 | nn[2] = SearchClusters(2,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); |
13918578 | 262 | if(nn[1]==0 && nn[2]==0) pflag=0; |
263 | if(nn[2]!=0 && nn[1]!=0){ pflag=1; UpdatePoints();} | |
264 | if(nn[2]!=0 && nn[1]==0){ | |
bef31448 | 265 | pflag=1; |
266 | fPoint3[0]=fPointc[0]; | |
267 | fPoint3[1]=fPointc[1]; | |
13918578 | 268 | } |
269 | ||
cfe729e0 | 270 | nn[3] = SearchClusters(3,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); |
13918578 | 271 | pflag=1; |
272 | if(nn[3]!=0) UpdatePoints(); | |
cfe729e0 | 273 | nn[4] = SearchClusters(4,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); |
13918578 | 274 | pflag=1; |
275 | if(nn[4]!=0) UpdatePoints(); | |
cfe729e0 | 276 | nn[5] = SearchClusters(5,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); |
13918578 | 277 | |
278 | ||
279 | Int_t layOK=0; | |
280 | Int_t numberofpoints; | |
2257f27e | 281 | if(fSixPoints) numberofpoints=6; //check of the candidate track |
13918578 | 282 | else numberofpoints=5; //if track is good (with the required number |
283 | for(Int_t nnp=0;nnp<fGeom->GetNlayers();nnp++){ //of points) it is written on file | |
bef31448 | 284 | if(nn[nnp]!=0) layOK+=1; |
13918578 | 285 | } |
286 | if(layOK>=numberofpoints){ | |
2257f27e | 287 | AliITStrackV2* tr2 = FitTrack(trs,primaryVertex,errorsprimvert); |
bef31448 | 288 | if(tr2==0){ |
289 | Int_t nct = trs->GetNumberOfClustersSA(); | |
290 | while(nct--){ | |
291 | Int_t index = trs->GetClusterIndexSA(nct); | |
292 | AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index); | |
627b6db6 | 293 | if(kl->TestBit(kSAflag)==kTRUE) kl->ResetBit(kSAflag); |
bef31448 | 294 | } |
73f446a0 | 295 | delete [] nn; |
296 | delete trs; | |
4e05ab9a | 297 | continue; |
bef31448 | 298 | } |
299 | outrack=tr2; | |
300 | out->Fill(); | |
301 | ntrack++; | |
302 | Int_t nct = tr2->GetNumberOfClusters(); | |
303 | ||
304 | while(nct--){ | |
305 | Int_t index = tr2->GetClusterIndex(nct); | |
306 | AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index); | |
627b6db6 | 307 | kl->SetBit(kSAflag); |
bef31448 | 308 | |
309 | } | |
310 | } | |
13918578 | 311 | else{ |
bef31448 | 312 | Int_t nct = trs->GetNumberOfClustersSA(); |
313 | while(nct--){ | |
314 | Int_t index = trs->GetClusterIndexSA(nct); | |
315 | AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index); | |
627b6db6 | 316 | if(kl->TestBit(kSAflag)==kTRUE) kl->ResetBit(kSAflag); |
bef31448 | 317 | } |
13918578 | 318 | } |
73f446a0 | 319 | delete [] nn; |
13918578 | 320 | delete trs; |
321 | ||
322 | }//end loop on clusters of layer1 | |
323 | ||
324 | }//end loop2 | |
325 | ||
326 | //if 5/6 points are required, second loop starting | |
327 | //from second layer, to find tracks with point of | |
328 | //layer 1 missing | |
329 | ||
2257f27e | 330 | if(!fSixPoints){ |
13918578 | 331 | // counter for clusters on each layer |
037efb75 | 332 | Int_t * nn = new Int_t[fGeom->GetNlayers()-1]; |
13918578 | 333 | for(Int_t nloop=0;nloop<fNloop;nloop++){ |
334 | AliITSlayer &layer2=fgLayers[1]; //loop on layer 2 | |
335 | Int_t ncl2=layer2.GetNumberOfClusters(); | |
336 | while(ncl2--){ //loop starting from layer 2 | |
bef31448 | 337 | ResetForFinding(); |
338 | Int_t pflag=0; | |
339 | AliITSclusterV2* cl = layer2.GetCluster(ncl2); | |
340 | if(cl->IsUsed()==1) continue; | |
627b6db6 | 341 | if(cl->TestBit(kSAflag)==kTRUE) continue; |
bef31448 | 342 | fPhic = fTable->GetPhiCluster(1,ncl2); |
343 | fLambdac = fTable->GetLambdaCluster(1,ncl2); | |
344 | fPhiEstimate = fPhic; | |
345 | AliITStrackSA* trs = new AliITStrackSA(); | |
13918578 | 346 | |
bef31448 | 347 | fPoint1[0]=primaryVertex[0]; |
348 | fPoint1[1]=primaryVertex[1]; | |
349 | fPoint2[0]=fTable->GetXCluster(1,ncl2);; | |
350 | fPoint2[1]=fTable->GetYCluster(1,ncl2);; | |
13918578 | 351 | |
bef31448 | 352 | for(Int_t kk=0;kk<fGeom->GetNlayers()-1;kk++)nn[kk] = 0; |
353 | for(Int_t kk=0;kk<fGeom->GetNlayers()-1;kk++){ | |
354 | nn[kk] = SearchClusters(kk+1,fPhiWin[nloop],fLambdaWin[nloop], | |
cfe729e0 | 355 | trs,primaryVertex[2],pflag); |
bef31448 | 356 | if(nn[kk]==0)break; |
357 | if(kk>0){ | |
358 | UpdatePoints(); | |
359 | pflag = 1; | |
360 | } | |
361 | } | |
362 | Int_t fl=0; | |
363 | for(Int_t nnp=0;nnp<fGeom->GetNlayers()-1;nnp++){ | |
364 | if(nn[nnp]!=0) fl+=1; | |
365 | } | |
366 | if(fl>=5){ // 5/6 | |
2257f27e | 367 | AliITStrackV2* tr2 = FitTrack(trs,primaryVertex,errorsprimvert); |
bef31448 | 368 | if(tr2==0){ |
369 | Int_t nct = trs->GetNumberOfClustersSA(); | |
370 | while(nct--){ | |
371 | Int_t index = trs->GetClusterIndexSA(nct); | |
372 | AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index); | |
627b6db6 | 373 | if(kl->TestBit(kSAflag)==kTRUE) kl->ResetBit(kSAflag); |
bef31448 | 374 | } |
73f446a0 | 375 | delete trs; |
bef31448 | 376 | continue; |
377 | } | |
378 | outrack=tr2; | |
379 | out->Fill(); | |
380 | Int_t nct = tr2->GetNumberOfClusters(); | |
381 | while(nct--){ | |
382 | Int_t index = tr2->GetClusterIndex(nct); | |
383 | AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index); | |
384 | if(kl==0) continue; | |
627b6db6 | 385 | kl->SetBit(kSAflag); |
bef31448 | 386 | } |
387 | } | |
388 | else{ | |
389 | Int_t nct = trs->GetNumberOfClustersSA(); | |
390 | while(nct--){ | |
391 | Int_t index = trs->GetClusterIndexSA(nct); | |
392 | AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index); | |
393 | if(kl==0) continue; | |
627b6db6 | 394 | if(kl->TestBit(kSAflag)==kTRUE) kl->ResetBit(kSAflag); |
395 | } | |
bef31448 | 396 | } |
397 | delete trs; | |
13918578 | 398 | }//end loop on clusters of layer2 |
399 | } | |
037efb75 | 400 | delete [] nn; |
2257f27e | 401 | } // if(!fSixPoints.... |
13918578 | 402 | |
037efb75 | 403 | delete [] firstmod; |
627b6db6 | 404 | delete fTable; fTable=0; |
13918578 | 405 | } |
bef31448 | 406 | |
2257f27e | 407 | |
bef31448 | 408 | //______________________________________________________________________ |
2257f27e | 409 | Int_t AliITStrackerSA::FindTracks(AliESD* event){ |
bef31448 | 410 | |
2257f27e | 411 | // Track finder using the ESD object |
412 | ||
4e05ab9a | 413 | |
2257f27e | 414 | if(!fITSclusters){ |
415 | Fatal("FindTracks","ITS cluster tree is not accessed - Abort!!!\n Please use method SetClusterTree to pass the pointer to the tree\n"); | |
416 | return -1; | |
bef31448 | 417 | } |
2257f27e | 418 | |
419 | //Get primary vertex | |
bef31448 | 420 | Double_t errorsprimvert[3]; |
2257f27e | 421 | Double_t primaryVertex[3]; |
422 | event->GetVertex()->GetXYZ(primaryVertex); | |
423 | event->GetVertex()->GetSigmaXYZ(errorsprimvert); | |
424 | ||
bef31448 | 425 | if(errorsprimvert[0]==0 || errorsprimvert[1]==0){ |
2257f27e | 426 | // Warning("FindTracks","Set errors on vertex positions x and y at 0.005"); |
427 | errorsprimvert[0]=0.005; | |
428 | errorsprimvert[1]=0.005; | |
bef31448 | 429 | } |
bef31448 | 430 | |
431 | //Fill array with cluster indices for each module | |
4e05ab9a | 432 | if(!fTable){ |
433 | fTable = new AliITSclusterTable(fGeom,this,primaryVertex); | |
434 | fTable->FillArray(fITSclusters); | |
435 | fTable->FillArrayCoorAngles(); | |
627b6db6 | 436 | } |
bef31448 | 437 | |
438 | Int_t * firstmod = new Int_t[fGeom->GetNlayers()]; | |
439 | for(Int_t i=0;i<fGeom->GetNlayers();i++){ | |
440 | firstmod[i]=fGeom->GetModuleIndex(i+1,1,1); | |
13918578 | 441 | } |
bef31448 | 442 | // firstmod [i] number of the first module in the ITS layer i. |
443 | ||
444 | ||
627b6db6 | 445 | AliITSlayer &layer=fgLayers[0]; |
bef31448 | 446 | Int_t ntrack=0; |
627b6db6 | 447 | Int_t dim=layer.GetNumberOfClusters(); |
bef31448 | 448 | //loop on the different windows |
449 | for(Int_t nloop=0;nloop<fNloop;nloop++){ | |
450 | for(Int_t ncl=0;ncl<dim;ncl++){ //loop starting from layer 0 | |
627b6db6 | 451 | |
bef31448 | 452 | ResetForFinding(); |
453 | Int_t pflag=0; | |
454 | AliITSclusterV2* cl = (AliITSclusterV2*)layer.GetCluster(ncl); | |
455 | if(cl==0) continue; | |
456 | if(cl->IsUsed()==1) continue; | |
627b6db6 | 457 | if(cl->TestBit(kSAflag)==kTRUE) continue; |
cfe729e0 | 458 | if (cl->GetQ()<=0) continue; |
627b6db6 | 459 | |
bef31448 | 460 | fPhic = fTable->GetPhiCluster(0,ncl); |
461 | fLambdac = fTable->GetLambdaCluster(0,ncl); | |
cfe729e0 | 462 | |
463 | if (TMath::Abs(fLambdac)>0.26*TMath::Pi()) continue; | |
464 | ||
bef31448 | 465 | fPhiEstimate = fPhic; |
466 | AliITStrackSA* trs = new AliITStrackSA(); | |
467 | fPoint1[0]=primaryVertex[0]; | |
468 | fPoint1[1]=primaryVertex[1]; | |
469 | fPoint2[0]=fTable->GetXCluster(0,ncl); | |
470 | fPoint2[1]=fTable->GetYCluster(0,ncl); | |
471 | Int_t * nn = new Int_t[fGeom->GetNlayers()];//counter for clusters on each layer | |
472 | for(Int_t i=0;i<fGeom->GetNlayers();i++){ nn[i]=0;} | |
cfe729e0 | 473 | nn[0] = SearchClusters(0,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); |
bef31448 | 474 | |
cfe729e0 | 475 | nn[1] = SearchClusters(1,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); |
bef31448 | 476 | if(nn[1]>0){ |
477 | pflag=1; | |
478 | fPoint3[0] = fPointc[0]; | |
479 | fPoint3[1] = fPointc[1]; | |
480 | } | |
cfe729e0 | 481 | nn[2] = SearchClusters(2,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); |
bef31448 | 482 | if(nn[1]==0 && nn[2]==0) pflag=0; |
483 | if(nn[2]!=0 && nn[1]!=0){ pflag=1; UpdatePoints();} | |
484 | if(nn[2]!=0 && nn[1]==0){ | |
485 | pflag=1; | |
486 | fPoint3[0]=fPointc[0]; | |
487 | fPoint3[1]=fPointc[1]; | |
488 | } | |
13918578 | 489 | |
cfe729e0 | 490 | nn[3] = SearchClusters(3,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); |
bef31448 | 491 | pflag=1; |
492 | if(nn[3]!=0) UpdatePoints(); | |
cfe729e0 | 493 | nn[4] = SearchClusters(4,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); |
bef31448 | 494 | pflag=1; |
495 | if(nn[4]!=0) UpdatePoints(); | |
cfe729e0 | 496 | nn[5] = SearchClusters(5,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); |
bef31448 | 497 | |
498 | ||
499 | Int_t layOK=0; | |
500 | Int_t numberofpoints; | |
2257f27e | 501 | if(fSixPoints) numberofpoints=6; //check of the candidate track |
bef31448 | 502 | else numberofpoints=5; //if track is good (with the required number |
503 | for(Int_t nnp=0;nnp<fGeom->GetNlayers();nnp++){ //of points) it is written on file | |
504 | if(nn[nnp]!=0) layOK+=1; | |
505 | } | |
506 | if(layOK>=numberofpoints){ | |
2257f27e | 507 | AliITStrackV2* tr2 = FitTrack(trs,primaryVertex,errorsprimvert); |
bef31448 | 508 | if(tr2==0){ |
509 | Int_t nct = trs->GetNumberOfClustersSA(); | |
510 | while(nct--){ | |
511 | Int_t index = trs->GetClusterIndexSA(nct); | |
512 | AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index); | |
627b6db6 | 513 | if(kl->TestBit(kSAflag)==kTRUE) kl->ResetBit(kSAflag); |
514 | ||
bef31448 | 515 | } |
4e05ab9a | 516 | continue; |
bef31448 | 517 | } |
518 | ||
519 | AliESDtrack outtrack; | |
520 | outtrack.UpdateTrackParams(tr2,AliESDtrack::kITSin); | |
521 | event->AddTrack(&outtrack); | |
bef31448 | 522 | ntrack++; |
627b6db6 | 523 | Int_t nct = tr2->GetNumberOfClusters(); |
bef31448 | 524 | while(nct--){ |
525 | Int_t index = tr2->GetClusterIndex(nct); | |
526 | AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index); | |
627b6db6 | 527 | kl->SetBit(kSAflag); |
528 | ||
529 | } | |
530 | } | |
bef31448 | 531 | else{ |
627b6db6 | 532 | Int_t nct = trs->GetNumberOfClustersSA(); |
533 | while(nct--){ | |
534 | Int_t index = trs->GetClusterIndexSA(nct); | |
535 | AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index); | |
536 | if(kl->TestBit(kSAflag)==kTRUE) kl->ResetBit(kSAflag); | |
537 | ||
4e05ab9a | 538 | } |
bef31448 | 539 | } |
540 | delete trs; | |
2257f27e | 541 | delete[] nn; |
627b6db6 | 542 | |
bef31448 | 543 | }//end loop on clusters of layer1 |
627b6db6 | 544 | |
bef31448 | 545 | }//end loop2 |
546 | ||
627b6db6 | 547 | |
548 | ||
bef31448 | 549 | //if 5/6 points are required, second loop starting |
550 | //from second layer, to find tracks with point of | |
551 | //layer 1 missing | |
552 | ||
2257f27e | 553 | if(!fSixPoints){ |
bef31448 | 554 | // counter for clusters on each layer |
555 | Int_t * nn = new Int_t[fGeom->GetNlayers()-1]; | |
556 | for(Int_t nloop=0;nloop<fNloop;nloop++){ | |
627b6db6 | 557 | AliITSlayer &layer2=fgLayers[1]; |
bef31448 | 558 | Int_t ncl2=layer2.GetNumberOfClusters(); |
559 | while(ncl2--){ //loop starting from layer 2 | |
560 | ResetForFinding(); | |
561 | Int_t pflag=0; | |
562 | AliITSclusterV2* cl = layer2.GetCluster(ncl2); | |
563 | if(cl->IsUsed()==1) continue; | |
627b6db6 | 564 | if(cl->TestBit(kSAflag)==kTRUE) continue; |
bef31448 | 565 | fPhic = fTable->GetPhiCluster(1,ncl2); |
566 | fLambdac = fTable->GetLambdaCluster(1,ncl2); | |
567 | fPhiEstimate = fPhic; | |
568 | AliITStrackSA* trs = new AliITStrackSA(); | |
569 | fPoint1[0]=primaryVertex[0]; | |
570 | fPoint1[1]=primaryVertex[1]; | |
571 | fPoint2[0]=fTable->GetXCluster(1,ncl2); | |
572 | fPoint2[1]=fTable->GetYCluster(1,ncl2); | |
573 | ||
574 | for(Int_t kk=0;kk<fGeom->GetNlayers()-1;kk++)nn[kk] = 0; | |
575 | for(Int_t kk=0;kk<fGeom->GetNlayers()-1;kk++){ | |
576 | nn[kk] = SearchClusters(kk+1,fPhiWin[nloop],fLambdaWin[nloop], | |
cfe729e0 | 577 | trs,primaryVertex[2],pflag); |
bef31448 | 578 | if(nn[kk]==0)break; |
579 | if(kk>0){ | |
580 | UpdatePoints(); | |
581 | pflag = 1; | |
582 | } | |
583 | } | |
584 | Int_t fl=0; | |
585 | for(Int_t nnp=0;nnp<fGeom->GetNlayers()-1;nnp++){ | |
586 | if(nn[nnp]!=0) fl+=1; | |
587 | } | |
588 | if(fl>=5){ // 5/6 | |
2257f27e | 589 | AliITStrackV2* tr2 = FitTrack(trs,primaryVertex,errorsprimvert); |
bef31448 | 590 | if(tr2==0){ |
627b6db6 | 591 | Int_t nct = trs->GetNumberOfClustersSA(); |
bef31448 | 592 | while(nct--){ |
593 | Int_t index = trs->GetClusterIndexSA(nct); | |
594 | AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index); | |
627b6db6 | 595 | if(kl->TestBit(kSAflag)==kTRUE) kl->ResetBit(kSAflag); |
596 | ||
bef31448 | 597 | } |
4e05ab9a | 598 | |
bef31448 | 599 | continue; |
600 | } | |
601 | ||
602 | AliESDtrack outtrack; | |
603 | outtrack.UpdateTrackParams(tr2,AliESDtrack::kITSin); | |
604 | event->AddTrack(&outtrack); | |
627b6db6 | 605 | ntrack++; |
bef31448 | 606 | Int_t nct = tr2->GetNumberOfClusters(); |
607 | while(nct--){ | |
608 | Int_t index = tr2->GetClusterIndex(nct); | |
609 | AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index); | |
610 | if(kl==0) continue; | |
627b6db6 | 611 | kl->SetBit(kSAflag); |
612 | } | |
bef31448 | 613 | } |
614 | else{ | |
615 | Int_t nct = trs->GetNumberOfClustersSA(); | |
616 | while(nct--){ | |
617 | Int_t index = trs->GetClusterIndexSA(nct); | |
618 | AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index); | |
619 | if(kl==0) continue; | |
627b6db6 | 620 | if(kl->TestBit(kSAflag)==kTRUE) kl->ResetBit(kSAflag); |
621 | ||
bef31448 | 622 | } |
623 | } | |
624 | delete trs; | |
625 | }//end loop on clusters of layer2 | |
13918578 | 626 | } |
bef31448 | 627 | delete [] nn; |
628 | } //end opt="5/6" | |
13918578 | 629 | |
bef31448 | 630 | delete [] firstmod; |
627b6db6 | 631 | delete fTable;fTable=0; |
bef31448 | 632 | Info("FindTracks","Number of found tracks: %d",event->GetNumberOfTracks()); |
2257f27e | 633 | return 0; |
bef31448 | 634 | |
635 | } | |
2257f27e | 636 | |
637 | ||
13918578 | 638 | //________________________________________________________________________ |
639 | ||
2257f27e | 640 | AliITStrackV2* AliITStrackerSA::FitTrack(AliITStrackSA* tr,Double_t *primaryVertex,Double_t *errorsprimvert){ |
13918578 | 641 | //fit of the found track |
642 | ||
13918578 | 643 | |
037efb75 | 644 | Int_t * firstmod = new Int_t[fGeom->GetNlayers()]; |
13918578 | 645 | for(Int_t i=0;i<fGeom->GetNlayers();i++){ |
646 | firstmod[i]=fGeom->GetModuleIndex(i+1,1,1); | |
647 | } | |
15dd636f | 648 | |
13918578 | 649 | Int_t nclusters = tr->GetNumberOfClustersSA(); |
650 | TObjArray** listlayer = new TObjArray*[fGeom->GetNlayers()]; | |
651 | for(Int_t i=0;i<fGeom->GetNlayers();i++){ | |
652 | listlayer[i] = new TObjArray(0,0); | |
653 | } | |
654 | ||
655 | TArrayI clind0(20); | |
656 | TArrayI clind1(20); | |
657 | TArrayI clind2(20); | |
658 | TArrayI clind3(20); | |
659 | TArrayI clind4(20); | |
660 | TArrayI clind5(20); | |
661 | ||
037efb75 | 662 | Int_t * nnn = new Int_t[fGeom->GetNlayers()]; |
13918578 | 663 | for(Int_t i=0;i<fGeom->GetNlayers();i++)nnn[i]=0; |
664 | ||
665 | for(Int_t ncl=0;ncl<nclusters;ncl++){ | |
666 | Int_t index = tr->GetClusterIndexSA(ncl); | |
667 | AliITSclusterV2* cl = (AliITSclusterV2*)GetCluster(index); | |
bef31448 | 668 | |
627b6db6 | 669 | if(cl->TestBit(kSAflag)==kTRUE) cl->ResetBit(kSAflag); |
13918578 | 670 | Int_t lay = (index & 0xf0000000) >> 28; |
671 | if(lay==0) { listlayer[0]->AddLast(cl); clind0[nnn[0]]=index;nnn[0]++;} | |
672 | if(lay==1) { listlayer[1]->AddLast(cl); clind1[nnn[1]]=index;nnn[1]++;} | |
673 | if(lay==2) { listlayer[2]->AddLast(cl); clind2[nnn[2]]=index;nnn[2]++;} | |
674 | if(lay==3) { listlayer[3]->AddLast(cl); clind3[nnn[3]]=index;nnn[3]++;} | |
675 | if(lay==4) { listlayer[4]->AddLast(cl); clind4[nnn[4]]=index;nnn[4]++;} | |
676 | if(lay==5) { listlayer[5]->AddLast(cl); clind5[nnn[5]]=index;nnn[5]++;} | |
677 | } | |
037efb75 | 678 | delete [] nnn; |
13918578 | 679 | |
680 | ||
037efb75 | 681 | Int_t * end = new Int_t[fGeom->GetNlayers()]; |
13918578 | 682 | for(Int_t i=0;i<fGeom->GetNlayers();i++){ |
683 | if(listlayer[i]->GetEntries()==0) end[i]=1; | |
684 | else end[i]=listlayer[i]->GetEntries(); | |
685 | } | |
686 | ||
687 | for(Int_t l1=0;l1<end[0];l1++){//loop on layer 1 | |
688 | AliITSclusterV2* cl0 = (AliITSclusterV2*)listlayer[0]->At(l1); | |
689 | TVector3** recp = new TVector3*[3]; | |
690 | TVector3** errs = new TVector3*[3]; | |
691 | recp[0] = new TVector3(primaryVertex[0],primaryVertex[1],primaryVertex[2]); | |
692 | errs[0] = new TVector3(errorsprimvert[0],errorsprimvert[1],errorsprimvert[2]); | |
693 | Double_t x1,y1,z1,sx1,sy1,sz1; | |
694 | Double_t x2,y2,z2,sx2,sy2,sz2; | |
695 | AliITSclusterV2* p1=0; | |
696 | AliITSclusterV2* p2=0; | |
bef31448 | 697 | Int_t index1=clind0[l1]; |
698 | Int_t index2=0; | |
13918578 | 699 | for(Int_t l2=0;l2<end[1];l2++){//loop on layer 2 |
bef31448 | 700 | AliITSclusterV2* cl1 = (AliITSclusterV2*)listlayer[1]->At(l2); |
701 | index2=clind1[l2]; | |
13918578 | 702 | for(Int_t l3=0;l3<end[2];l3++){ //loop on layer 3 |
bef31448 | 703 | AliITSclusterV2* cl2 = (AliITSclusterV2*)listlayer[2]->At(l3); |
704 | ||
705 | if(cl0==0 && cl1!=0) { | |
706 | p2 = cl2;index1=clind2[l3]; | |
707 | p1=cl1; | |
708 | ||
709 | } | |
710 | if(cl0!=0 && cl1==0){ | |
711 | p1=cl0; | |
712 | p2=cl2;index2=clind2[l3]; | |
713 | } | |
714 | if(cl0!=0 && cl1!=0){ | |
715 | p1=cl0; | |
716 | p2=cl1; | |
717 | } | |
718 | Int_t lay1=(index1 & 0xf0000000) >> 28; | |
719 | Int_t cln1=(index1 & 0x0fffffff) >> 00; | |
720 | Int_t lay2=(index2 & 0xf0000000) >> 28; | |
721 | Int_t cln2=(index2 & 0x0fffffff) >> 00; | |
722 | x1 = fTable->GetXCluster(lay1,cln1); | |
723 | x2 = fTable->GetXCluster(lay2,cln2); | |
724 | y1 = fTable->GetYCluster(lay1,cln1); | |
725 | y2 = fTable->GetYCluster(lay2,cln2); | |
726 | z1 = fTable->GetZCluster(lay1,cln1); | |
727 | z2 = fTable->GetZCluster(lay2,cln2); | |
728 | sx1 = fTable->GetXClusterError(lay1,cln1); | |
729 | sx2 = fTable->GetXClusterError(lay2,cln2); | |
730 | sy1 = fTable->GetYClusterError(lay1,cln1); | |
731 | sy2 = fTable->GetYClusterError(lay2,cln2); | |
732 | sz1 = fTable->GetZClusterError(lay1,cln1); | |
733 | sz2 = fTable->GetZClusterError(lay2,cln2); | |
734 | Double_t phi1 = fTable->GetPhiCluster(lay1,cln1); | |
735 | Int_t module1 = p1->GetDetectorIndex()+firstmod[0]; | |
13918578 | 736 | recp[1] = new TVector3(x1,y1,z1); |
bef31448 | 737 | errs[1] = new TVector3(sx1,sy1,sz1); |
738 | recp[2] = new TVector3(x2,y2,z2); | |
739 | errs[2] = new TVector3(sx2,sy2,sz2); | |
740 | ||
741 | //fit on the Riemann sphere | |
742 | Float_t seed1,seed2,seed3; | |
743 | AliITSRiemannFit fit; | |
744 | Int_t rf = fit.FitHelix(3,recp,errs,seed1,seed2,seed3); //this gives phi,tgl,curvature to start Kalman Filter | |
73f446a0 | 745 | if(rf==0) { |
746 | for(Int_t i=1;i<3;i++){ | |
747 | delete recp[i]; | |
748 | delete errs[i]; | |
749 | } | |
750 | continue; | |
751 | } | |
bef31448 | 752 | Double_t phi=seed1; |
753 | Double_t tgl=seed2; | |
754 | ||
755 | if(phi1>0){ | |
756 | if(seed1>-TMath::Pi() && seed1<-0.5*TMath::Pi()){ | |
757 | phi=seed1+1.5*TMath::Pi(); | |
758 | tgl=seed2; | |
759 | } | |
760 | if(seed1>-0.5*TMath::Pi() && seed1<0.5*TMath::Pi()){ | |
761 | phi=seed1+0.5*TMath::Pi(); | |
762 | tgl=(-1)*seed2; | |
763 | } | |
764 | if(seed1>0.5*TMath::Pi() && seed1<TMath::Pi()){ | |
765 | phi=seed1-0.5*TMath::Pi(); | |
766 | tgl=seed2; | |
767 | } | |
768 | } | |
769 | if(phi1<0){ | |
770 | if(seed1>-TMath::Pi() && seed1<-0.5*TMath::Pi()){ | |
771 | phi=seed1+0.5*TMath::Pi(); | |
772 | tgl=(-1)*seed2; | |
773 | } | |
774 | if(seed1>-0.5*TMath::Pi() && seed1<0.5*TMath::Pi()){ | |
775 | phi=seed1-0.5*TMath::Pi(); | |
776 | tgl=seed2; | |
777 | } | |
778 | if(seed1>0.5*TMath::Pi() && seed1<TMath::Pi()){ | |
779 | phi=seed1-1.5*TMath::Pi(); | |
780 | tgl=(-1)*seed2; | |
781 | } | |
782 | } | |
783 | ||
13918578 | 784 | Int_t layer,ladder,detector; |
785 | fGeom->GetModuleId(module1,layer,ladder,detector); | |
bef31448 | 786 | Float_t yclu1 = p1->GetY(); |
787 | Float_t zclu1 = p1->GetZ(); | |
788 | Double_t cv=Curvature(primaryVertex[0],primaryVertex[1],x1,y1,x2,y2); | |
789 | ||
790 | for(Int_t l4=0;l4<end[3];l4++){ //loop on layer 4 | |
791 | AliITSclusterV2* cl3 = (AliITSclusterV2*)listlayer[3]->At(l4); | |
792 | for(Int_t l5=0;l5<end[4];l5++){ //loop on layer 5 | |
793 | AliITSclusterV2* cl4 = (AliITSclusterV2*)listlayer[4]->At(l5); | |
794 | for(Int_t l6=0;l6<end[5];l6++){ //loop on layer 6 | |
795 | AliITSclusterV2* cl5 = (AliITSclusterV2*)listlayer[5]->At(l6); | |
796 | AliITStrackSA* trac = new AliITStrackSA(layer,ladder,detector,yclu1,zclu1,phi,tgl,cv,1); | |
797 | ||
798 | if(cl5!=0) trac->AddClusterV2(5,(clind5[l6] & 0x0fffffff)>>0); | |
799 | if(cl4!=0) trac->AddClusterV2(4,(clind4[l5] & 0x0fffffff)>>0); | |
800 | if(cl3!=0) trac->AddClusterV2(3,(clind3[l4] & 0x0fffffff)>>0); | |
801 | if(cl2!=0) trac->AddClusterV2(2,(clind2[l3] & 0x0fffffff)>>0); | |
802 | if(cl1!=0) trac->AddClusterV2(1,(clind1[l2] & 0x0fffffff)>>0); | |
803 | if(cl0!=0) trac->AddClusterV2(0,(clind0[l1] & 0x0fffffff)>>0); | |
804 | ||
e43c066c | 805 | //fit with Kalman filter using AliITStrackerMI::RefitAt() |
bef31448 | 806 | |
15dd636f | 807 | AliITStrackMI* ot = new AliITStrackSA(*trac); |
bef31448 | 808 | |
809 | ot->ResetCovariance(); | |
810 | ot->ResetClusters(); | |
811 | ||
812 | if(RefitAt(49.,ot,trac)){ //fit from layer 1 to layer 6 | |
813 | ||
15dd636f | 814 | AliITStrackMI *otrack2 = new AliITStrackMI(*ot); |
bef31448 | 815 | otrack2->ResetCovariance(); |
816 | otrack2->ResetClusters(); | |
817 | //fit from layer 6 to layer 1 | |
73f446a0 | 818 | if(RefitAt(3.7,otrack2,ot)) { |
819 | fListOfTracks->AddLast(otrack2); | |
820 | } else { | |
821 | delete otrack2; | |
822 | } | |
bef31448 | 823 | |
824 | } | |
825 | ||
826 | delete ot; | |
827 | delete trac; | |
828 | }//end loop layer 6 | |
829 | }//end loop layer 5 | |
830 | }//end loop layer 4 | |
831 | ||
832 | for(Int_t i=1;i<3;i++){ | |
833 | delete recp[i]; | |
834 | delete errs[i]; | |
835 | } | |
13918578 | 836 | }//end loop layer 3 |
bef31448 | 837 | }//end loop layer 2 |
13918578 | 838 | delete recp[0]; |
839 | delete errs[0]; | |
840 | delete[] recp; | |
841 | delete[] errs; | |
842 | }//end loop layer 1 | |
843 | ||
037efb75 | 844 | delete [] end; |
845 | ||
4e05ab9a | 846 | Int_t dim=fListOfTracks->GetEntries(); |
13918578 | 847 | if(dim==0){ |
13918578 | 848 | for(Int_t i=0;i<fGeom->GetNlayers();i++){ |
849 | delete listlayer[i]; | |
850 | } | |
c09cece6 | 851 | delete [] listlayer; |
73f446a0 | 852 | delete [] firstmod; |
13918578 | 853 | return 0; |
854 | } | |
855 | ||
4e05ab9a | 856 | AliITStrackV2* otrack =(AliITStrackV2*)FindTrackLowChiSquare(fListOfTracks,dim); |
13918578 | 857 | |
73f446a0 | 858 | if(otrack==0) { |
859 | for(Int_t i=0;i<fGeom->GetNlayers();i++){ | |
860 | delete listlayer[i]; | |
861 | } | |
c09cece6 | 862 | delete [] listlayer; |
73f446a0 | 863 | delete [] firstmod; |
864 | return 0; | |
865 | } | |
037efb75 | 866 | Int_t * indexc = new Int_t[fGeom->GetNlayers()]; |
13918578 | 867 | for(Int_t i=0;i<fGeom->GetNlayers();i++) indexc[i]=0; |
868 | for(Int_t nind=0;nind<otrack->GetNumberOfClusters();nind++){ | |
869 | indexc[nind] = otrack->GetClusterIndex(nind); | |
870 | } | |
871 | AliITSclusterV2* cl0 = (AliITSclusterV2*)GetCluster(indexc[0]); | |
872 | AliITSclusterV2* cl1 = (AliITSclusterV2*)GetCluster(indexc[1]); | |
873 | AliITSclusterV2* cl2 = (AliITSclusterV2*)GetCluster(indexc[2]); | |
874 | AliITSclusterV2* cl3 = (AliITSclusterV2*)GetCluster(indexc[3]); | |
875 | AliITSclusterV2* cl4 = (AliITSclusterV2*)GetCluster(indexc[4]); | |
876 | Int_t labl[3]={-1,-1,-1}; | |
877 | if(otrack->GetNumberOfClusters()==fGeom->GetNlayers()){ | |
878 | AliITSclusterV2* cl5 = (AliITSclusterV2*)GetCluster(indexc[5]); | |
879 | labl[0]=cl5->GetLabel(0); | |
880 | labl[1]=cl5->GetLabel(1); | |
881 | labl[2]=cl5->GetLabel(2); | |
882 | } | |
037efb75 | 883 | delete [] indexc; |
13918578 | 884 | if(otrack->GetNumberOfClusters()==(fGeom->GetNlayers()-1)){ |
885 | labl[0]=-1; | |
886 | labl[1]=-1; | |
887 | labl[2]=-1; | |
888 | } | |
889 | Int_t numberofpoints; | |
2257f27e | 890 | if(fSixPoints) numberofpoints=6; |
13918578 | 891 | else numberofpoints=5; |
e43c066c | 892 | CookLabel(otrack,0.); //MI change - to see fake ratio |
13918578 | 893 | Int_t label = Label(cl0->GetLabel(0),cl1->GetLabel(0), |
bef31448 | 894 | cl2->GetLabel(0),cl3->GetLabel(0), |
895 | cl4->GetLabel(0),labl[0], | |
896 | cl0->GetLabel(1),cl1->GetLabel(1), | |
897 | cl2->GetLabel(1),cl3->GetLabel(1), | |
898 | cl4->GetLabel(1),labl[1], | |
899 | cl0->GetLabel(2),cl1->GetLabel(2), | |
900 | cl2->GetLabel(2),cl3->GetLabel(2), | |
901 | cl4->GetLabel(2),labl[2],numberofpoints); | |
13918578 | 902 | |
903 | otrack->SetLabel(label); | |
13918578 | 904 | for(Int_t i=0;i<fGeom->GetNlayers();i++){ |
905 | delete listlayer[i]; | |
906 | } | |
c09cece6 | 907 | delete [] listlayer; |
037efb75 | 908 | delete [] firstmod; |
13918578 | 909 | return otrack; |
910 | ||
911 | } | |
912 | ||
bef31448 | 913 | //_______________________________________________________________________ |
4e05ab9a | 914 | void AliITStrackerSA::UseFoundTracksV2(Int_t evnum,TTree* treev2){ |
bef31448 | 915 | // Marks as used clusters belonging to tracks found with V2 TPC+ITS tracking |
916 | //(or AliITStrackV2 tracks found with function FindTracks of this class) | |
4e05ab9a | 917 | |
13918578 | 918 | |
bef31448 | 919 | //Get primary vertex |
920 | if(fVertexer){ | |
921 | if(fVert)delete fVert; | |
922 | fVert = fVertexer->FindVertexForCurrentEvent(evnum); | |
923 | } | |
924 | else { | |
925 | gAlice->GetEvent(evnum); | |
926 | if(!fVert){ | |
927 | Fatal("FindTracks","Vertex is missing\n"); | |
928 | return; | |
929 | } | |
930 | } | |
931 | Double_t primaryVertex[3]; | |
932 | fVert->GetXYZ(primaryVertex); | |
13918578 | 933 | |
bef31448 | 934 | if(!fTable){ |
935 | fTable = new AliITSclusterTable(fGeom,this,primaryVertex); | |
2257f27e | 936 | fTable->FillArray(fITSclusters); |
937 | fTable->FillArrayCoorAngles(); | |
bef31448 | 938 | } |
bef31448 | 939 | |
940 | TBranch* bra = (TBranch*)treev2->GetBranch("tracks"); | |
941 | if(!bra) Warning("UseFoundTracksV2","No branch for track tree"); | |
942 | AliITStrackV2* ttrrt = new AliITStrackV2; | |
943 | bra->SetAddress(&ttrrt); | |
944 | ||
945 | for(Int_t nj=0;nj<treev2->GetEntries();nj++){ | |
946 | treev2->GetEvent(nj); | |
947 | Int_t ncl = ttrrt->GetNumberOfClusters(); | |
948 | for(Int_t k=0;k<ncl;k++){ | |
949 | Int_t index = ttrrt->GetClusterIndex(k); | |
950 | AliITSclusterV2* clui = (AliITSclusterV2*)GetCluster(index); | |
627b6db6 | 951 | if(clui->IsUsed()==0) clui->Use(); |
952 | ||
bef31448 | 953 | } |
954 | } | |
955 | delete ttrrt; | |
13918578 | 956 | |
957 | } | |
958 | ||
bef31448 | 959 | //_______________________________________________________________________ |
4e05ab9a | 960 | void AliITStrackerSA::UseFoundTracksV2(AliESD *event){ |
bef31448 | 961 | // Marks as used clusters belonging to tracks found with V2 TPC+ITS tracking |
962 | ||
963 | //Get primary vertex | |
4e05ab9a | 964 | |
bef31448 | 965 | Double_t primaryVertex[3]; |
4e05ab9a | 966 | event->GetVertex()->GetXYZ(primaryVertex); |
13918578 | 967 | |
bef31448 | 968 | if(!fTable){ |
969 | fTable = new AliITSclusterTable(fGeom,this,primaryVertex); | |
2257f27e | 970 | fTable->FillArray(fITSclusters); |
971 | fTable->FillArrayCoorAngles(); | |
bef31448 | 972 | } |
4e05ab9a | 973 | |
bef31448 | 974 | Int_t ntracks = event->GetNumberOfTracks(); |
975 | while (ntracks--) { | |
976 | AliESDtrack *esd=event->GetTrack(ntracks); | |
977 | if ((esd->GetStatus()& | |
978 | AliESDtrack::kITSin|AliESDtrack::kTPCin)==0) continue; | |
979 | UInt_t idx[6]; | |
980 | Int_t ncl = esd->GetITSclusters(idx); | |
981 | for(Int_t clu=0; clu<ncl; clu++){ | |
982 | AliITSclusterV2* cl = (AliITSclusterV2*)GetCluster(idx[clu]); | |
983 | if(cl->IsUsed()==0) cl->Use(); | |
984 | } | |
985 | } | |
986 | ||
987 | Info("UseFoundTracksV2","Clusters of tracks prolonged from TPC deleted"); | |
988 | ||
989 | ||
990 | } | |
991 | ||
cfe729e0 | 992 | /* |
bef31448 | 993 | //_______________________________________________________ |
cfe729e0 | 994 | Int_t AliITStrackerSA::SearchClusters(Int_t layer,Double_t phiwindow,Double_t lambdawindow, AliITStrackSA* trs,Double_t zvertex,Int_t pflag){ |
13918578 | 995 | //function used to to find the clusters associated to the track |
996 | Int_t nc=0; | |
997 | AliITSlayer &lay = fgLayers[layer]; | |
037efb75 | 998 | Int_t * firstmod = new Int_t[fGeom->GetNlayers()]; |
13918578 | 999 | for(Int_t i=0;i<fGeom->GetNlayers();i++){ |
1000 | firstmod[i]=fGeom->GetModuleIndex(i+1,1,1); | |
1001 | } | |
1002 | if(pflag==1){ | |
1003 | ||
1004 | Float_t cx1,cx2,cy1,cy2; | |
1005 | FindEquation(fPoint1[0],fPoint1[1],fPoint2[0],fPoint2[1],fPoint3[0],fPoint3[1],fCoef1,fCoef2,fCoef3); | |
1006 | Int_t fun = FindIntersection(fCoef1,fCoef2,fCoef3,-(lay.GetR()*lay.GetR()),cx1,cy1,cx2,cy2); | |
2257f27e | 1007 | if(fun==0) { |
1008 | delete[] firstmod; | |
1009 | return 0; | |
1010 | } | |
627b6db6 | 1011 | |
13918578 | 1012 | Double_t fi1 =TMath::ATan2(cy1,cx1); |
1013 | Double_t fi2 =TMath::ATan2(cy2,cx2); | |
1014 | fPhiEstimate = ChoosePoint(fi1,fi2,fPhic); | |
1015 | } | |
1016 | ||
1017 | Double_t zed = TMath::Tan(fLambdac)*lay.GetR()+zvertex; | |
1018 | Double_t zed1 = TMath::Tan(fLambdac+lambdawindow)*lay.GetR()+zvertex; | |
1019 | Double_t zed2 = TMath::Tan(fLambdac-lambdawindow)*lay.GetR()+zvertex; | |
1020 | ||
1021 | Double_t fi = fPhiEstimate; | |
2257f27e | 1022 | Int_t nmod = lay.FindDetectorIndex(fi,zed); |
1023 | if (nmod < 0) { | |
1024 | delete[] firstmod; | |
1025 | return 0; | |
1026 | } | |
1027 | nmod += firstmod[layer]; | |
13918578 | 1028 | |
1029 | Int_t nm[8]={0,0,0,0,0,0,0,0}; | |
2257f27e | 1030 | nm[0] = lay.FindDetectorIndex(fi+phiwindow,zed); |
1031 | nm[1] = lay.FindDetectorIndex(fi-phiwindow,zed); | |
4e05ab9a | 1032 | nm[2] = lay.FindDetectorIndex(fi,zed1); |
1033 | nm[3] = lay.FindDetectorIndex(fi,zed2); | |
1034 | nm[4] = lay.FindDetectorIndex(fi+phiwindow,zed1); | |
1035 | nm[5] = lay.FindDetectorIndex(fi-phiwindow,zed1); | |
1036 | nm[6] = lay.FindDetectorIndex(fi+phiwindow,zed2); | |
1037 | nm[7] = lay.FindDetectorIndex(fi-phiwindow,zed2); | |
1038 | ||
13918578 | 1039 | |
13918578 | 1040 | Int_t nn=0; |
cfe729e0 | 1041 | TArrayI* array =(TArrayI*)fTable->GetListOfClusters(nmod); |
4e05ab9a | 1042 | TArrayI* listc = new TArrayI(array->GetSize()); |
13918578 | 1043 | for(Int_t i=0;i<array->GetSize();i++){ |
1044 | Int_t in=(Int_t)array->At(i); | |
4e05ab9a | 1045 | listc->AddAt(in,nn); |
13918578 | 1046 | nn++; |
1047 | } | |
627b6db6 | 1048 | |
4e05ab9a | 1049 | Int_t k=0; |
1050 | Int_t val; | |
1051 | while(k<8){ | |
1052 | for(Int_t h=k+1;h<8;h++){ | |
1053 | if(nm[k]>nm[h]){ | |
1054 | val=nm[k]; | |
1055 | nm[k]=nm[h]; | |
1056 | nm[h]=val; | |
1057 | } | |
1058 | ||
1059 | } | |
1060 | k++; | |
1061 | } | |
1062 | ||
1063 | Int_t value=-5; | |
1064 | ||
13918578 | 1065 | for(Int_t ii=0;ii<8;ii++){ |
4e05ab9a | 1066 | if(nm[ii]!=value && nm[ii]!=nmod && nm[ii]>=0){ |
cfe729e0 | 1067 | TArrayI* ar =(TArrayI*)fTable->GetListOfClusters(nm[ii]+firstmod[layer]); |
4e05ab9a | 1068 | listc->Set(listc->GetSize()+ar->GetSize()); |
13918578 | 1069 | for(Int_t j=0;j<ar->GetSize();j++){ |
4e05ab9a | 1070 | Int_t in=(Int_t)ar->At(j); |
1071 | listc->AddAt(in,nn); | |
1072 | nn++; | |
1073 | value=nm[ii]; | |
13918578 | 1074 | } |
1075 | } | |
1076 | } | |
4e05ab9a | 1077 | |
1078 | ||
1079 | for(Int_t i=0;i<listc->GetSize();i++){ | |
1080 | Int_t index = (Int_t)listc->At(i); | |
13918578 | 1081 | AliITSclusterV2* cllay = lay.GetCluster(index); |
1082 | if(cllay==0) continue; | |
627b6db6 | 1083 | if(cllay->IsUsed()==1) continue; |
1084 | if(cllay->TestBit(kSAflag)==kTRUE) continue; | |
bef31448 | 1085 | Double_t phi = fTable->GetPhiCluster(layer,index); |
1086 | Double_t lambda= fTable->GetLambdaCluster(layer,index); | |
1087 | ||
13918578 | 1088 | if(TMath::Abs(fLambdac-lambda)<lambdawindow && |
1089 | TMath::Abs(fPhiEstimate-phi)<phiwindow){ | |
1090 | nc+=1; | |
1091 | fLambdac = lambda; | |
4e05ab9a | 1092 | if(trs->GetNumberOfClustersSA()==15){ |
2257f27e | 1093 | delete[] firstmod; |
4e05ab9a | 1094 | delete listc; |
bef31448 | 1095 | return 0; |
13918578 | 1096 | } |
1097 | trs->AddClusterSA(layer,index); | |
627b6db6 | 1098 | cllay->SetBit(kSAflag); |
13918578 | 1099 | fPhiEstimate=phi; |
bef31448 | 1100 | fPointc[0]=fTable->GetXCluster(layer,index); |
1101 | fPointc[1]=fTable->GetYCluster(layer,index); | |
13918578 | 1102 | } |
1103 | ||
1104 | } | |
4e05ab9a | 1105 | delete listc; |
037efb75 | 1106 | delete [] firstmod; |
13918578 | 1107 | return nc; |
1108 | ||
1109 | } | |
cfe729e0 | 1110 | */ |
1111 | ||
1112 | ||
1113 | //_______________________________________________________ | |
1114 | Int_t AliITStrackerSA::SearchClusters(Int_t layer,Double_t phiwindow,Double_t lambdawindow, AliITStrackSA* trs,Double_t zvertex,Int_t pflag){ | |
1115 | //function used to to find the clusters associated to the track | |
1116 | Int_t nc=0; | |
1117 | AliITSlayer &lay = fgLayers[layer]; | |
1118 | Double_t r=lay.GetR(),tgl=TMath::Tan(fLambdac); | |
1119 | ||
1120 | if(pflag==1){ | |
1121 | Float_t cx1,cx2,cy1,cy2; | |
1122 | FindEquation(fPoint1[0],fPoint1[1],fPoint2[0],fPoint2[1],fPoint3[0],fPoint3[1],fCoef1,fCoef2,fCoef3); | |
1123 | if (FindIntersection(fCoef1,fCoef2,fCoef3,-r*r,cx1,cy1,cx2,cy2)==0) | |
1124 | return 0; | |
1125 | Double_t fi1=TMath::ATan2(cy1,cx1); | |
1126 | Double_t fi2=TMath::ATan2(cy2,cx2); | |
1127 | fPhiEstimate=ChoosePoint(fi1,fi2,fPhic); | |
1128 | } | |
13918578 | 1129 | |
cfe729e0 | 1130 | Double_t dz=r*lambdawindow*TMath::Sqrt(1+tgl*tgl) + 0.3*TMath::Abs(tgl); |
1131 | Double_t zmax=r*tgl + zvertex + dz; | |
1132 | Double_t zmin=r*tgl + zvertex - dz; | |
1133 | ||
494fda7c | 1134 | Int_t indmin = lay.FindClusterIndex(zmin); |
1135 | Int_t indmax = lay.FindClusterIndex(zmax); | |
1136 | for (Int_t index=indmin; index<indmax; index++) { | |
cfe729e0 | 1137 | AliITSclusterV2 *c=lay.GetCluster(index); |
1138 | if (c->IsUsed()) continue; | |
1139 | if (c->GetQ()<=0) continue; | |
1140 | if (c->TestBit(kSAflag)==kTRUE) continue; | |
cfe729e0 | 1141 | |
494fda7c | 1142 | Double_t phi =fTable->GetPhiCluster(layer,index); |
cfe729e0 | 1143 | if (TMath::Abs(phi-fPhiEstimate)>phiwindow) continue; |
494fda7c | 1144 | |
1145 | Double_t lambda=fTable->GetLambdaCluster(layer,index); | |
cfe729e0 | 1146 | if (TMath::Abs(lambda-fLambdac)>lambdawindow) continue; |
1147 | ||
1148 | if(trs->GetNumberOfClustersSA()==15) return 0; | |
1149 | ||
1150 | trs->AddClusterSA(layer,index); | |
1151 | nc++; | |
1152 | fLambdac=lambda; | |
1153 | fPhiEstimate=phi; | |
1154 | fPointc[0]=fTable->GetXCluster(layer,index); | |
1155 | fPointc[1]=fTable->GetYCluster(layer,index); | |
1156 | ||
1157 | c->SetBit(kSAflag); | |
1158 | } | |
1159 | return nc; | |
1160 | } | |
13918578 | 1161 | |
13918578 | 1162 | |
bef31448 | 1163 | //________________________________________________________________ |
1164 | void AliITStrackerSA::UpdatePoints(){ | |
1165 | //update of points for the estimation of the curvature | |
13918578 | 1166 | |
627b6db6 | 1167 | //fPoint1[0]=fPoint2[0]; |
1168 | //fPoint1[1]=fPoint2[1]; | |
bef31448 | 1169 | fPoint2[0]=fPoint3[0]; |
1170 | fPoint2[1]=fPoint3[1]; | |
1171 | fPoint3[0]=fPointc[0]; | |
1172 | fPoint3[1]=fPointc[1]; | |
13918578 | 1173 | |
1174 | ||
13918578 | 1175 | } |
13918578 | 1176 | |
13918578 | 1177 | //___________________________________________________________________ |
1178 | Int_t AliITStrackerSA::FindEquation(Float_t x1, Float_t y1, Float_t x2, Float_t y2, Float_t x3, Float_t y3,Float_t& a, Float_t& b, Float_t& c){ | |
1179 | ||
1180 | //given (x,y) of three recpoints (in global coordinates) | |
1181 | //returns the parameters a,b,c of circonference x*x + y*y +a*x + b*y +c | |
1182 | ||
1183 | Float_t den = (x3-x1)*(y2-y1)-(x2-x1)*(y3-y1); | |
1184 | if(den==0) return 0; | |
1185 | a = ((y3-y1)*(x2*x2+y2*y2-x1*x1-y1*y1)-(y2-y1)*(x3*x3+y3*y3-x1*x1-y1*y1))/den; | |
1186 | b = -(x2*x2-x1*x1+y2*y2-y1*y1+a*(x2-x1))/(y2-y1); | |
1187 | c = -x1*x1-y1*y1-a*x1-b*y1; | |
1188 | return 1; | |
1189 | } | |
1190 | //__________________________________________________________________________ | |
1191 | Int_t AliITStrackerSA::FindIntersection(Float_t a1, Float_t b1, Float_t c1, Float_t c2,Float_t& x1,Float_t& y1, Float_t& x2, Float_t& y2){ | |
1192 | ||
1193 | //Finds the intersection between the circonference of the track and the circonference centered in (0,0) represented by one layer | |
1194 | //c2 is -rlayer*rlayer | |
1195 | ||
1196 | if(a1==0) return 0; | |
3a2f227d | 1197 | Double_t m = c2-c1; |
1198 | Double_t aA = (b1*b1)/(a1*a1)+1; | |
1199 | Double_t bB = (-2*m*b1/(a1*a1)); | |
1200 | Double_t cC = c2+(m*m)/(a1*a1); | |
1201 | Double_t dD = bB*bB-4*aA*cC; | |
1202 | if(dD<0) return 0; | |
13918578 | 1203 | |
3a2f227d | 1204 | y1 = (-bB+TMath::Sqrt(dD))/(2*aA); |
1205 | y2 = (-bB-TMath::Sqrt(dD))/(2*aA); | |
13918578 | 1206 | x1 = (c2-c1-b1*y1)/a1; |
1207 | x2 = (c2-c1-b1*y2)/a1; | |
1208 | ||
1209 | return 1; | |
1210 | } | |
1211 | //____________________________________________________________________ | |
1212 | Double_t AliITStrackerSA::Curvature(Double_t x1,Double_t y1,Double_t | |
1213 | x2,Double_t y2,Double_t x3,Double_t y3){ | |
1214 | ||
1215 | //calculates the curvature of track | |
1216 | Double_t den = (x3-x1)*(y2-y1)-(x2-x1)*(y3-y1); | |
1217 | if(den==0) return 0; | |
1218 | Double_t a = ((y3-y1)*(x2*x2+y2*y2-x1*x1-y1*y1)-(y2-y1)*(x3*x3+y3*y3-x1*x1-y1*y1))/den; | |
1219 | Double_t b = -(x2*x2-x1*x1+y2*y2-y1*y1+a*(x2-x1))/(y2-y1); | |
1220 | Double_t c = -x1*x1-y1*y1-a*x1-b*y1; | |
1221 | Double_t xc=-a/2.; | |
1222 | ||
1223 | if((a*a+b*b-4*c)<0) return 0; | |
1224 | Double_t rad = TMath::Sqrt(a*a+b*b-4*c)/2.; | |
1225 | if(rad==0) return 0; | |
1226 | ||
1227 | if((x1>0 && y1>0 && x1<xc)) rad*=-1; | |
1228 | if((x1<0 && y1>0 && x1<xc)) rad*=-1; | |
1229 | // if((x1<0 && y1<0 && x1<xc)) rad*=-1; | |
1230 | // if((x1>0 && y1<0 && x1<xc)) rad*=-1; | |
1231 | ||
1232 | return 1/rad; | |
1233 | ||
1234 | } | |
1235 | //____________________________________________________________________ | |
1236 | Double_t AliITStrackerSA::ChoosePoint(Double_t p1, Double_t p2, Double_t pp){ | |
1237 | ||
1238 | //Returns the point closest to pp | |
1239 | ||
1240 | Double_t diff1 = p1-pp; | |
1241 | Double_t diff2 = p2-pp; | |
1242 | ||
1243 | if(TMath::Abs(diff1)<TMath::Abs(diff2)) fPhiEstimate=p1; | |
1244 | else fPhiEstimate=p2; | |
1245 | return fPhiEstimate; | |
1246 | ||
1247 | } | |
1248 | ||
1249 | ||
1250 | //_________________________________________________________________ | |
1251 | AliITStrackV2* AliITStrackerSA::FindTrackLowChiSquare(TObjArray* tracklist, Int_t dim) const { | |
1252 | // returns track with lowes chi square | |
1253 | if(dim==1){ | |
1254 | AliITStrackV2* trk = (AliITStrackV2*)tracklist->At(0); | |
1255 | return trk; | |
1256 | } | |
1257 | if(dim==0) return 0; | |
037efb75 | 1258 | Double_t * chi2 = new Double_t[dim]; |
1259 | Int_t * index = new Int_t[dim]; | |
13918578 | 1260 | for(Int_t i=0;i<dim;i++){ |
1261 | AliITStrackV2* trk = (AliITStrackV2*)tracklist->At(i); | |
1262 | chi2[i]=trk->GetChi2(); | |
1263 | index[i]=i; | |
1264 | } | |
1265 | ||
1266 | Int_t w=0;Double_t value; | |
1267 | Int_t lp; | |
1268 | while(w<dim){ | |
1269 | for(Int_t j=w+1;j<dim;j++){ | |
1270 | if(chi2[w]<chi2[j]){ | |
bef31448 | 1271 | value=chi2[w]; |
1272 | chi2[w]=chi2[j]; | |
1273 | chi2[j]=value; | |
1274 | lp=index[w]; | |
1275 | index[w]=index[j]; | |
1276 | index[j]=lp; | |
13918578 | 1277 | } |
1278 | } | |
1279 | w++; | |
1280 | } | |
1281 | ||
1282 | AliITStrackV2* trk = (AliITStrackV2*)tracklist->At(index[dim-1]); | |
037efb75 | 1283 | delete [] chi2; |
1284 | delete [] index; | |
13918578 | 1285 | return trk; |
1286 | ||
1287 | } | |
1288 | ||
1289 | //__________________________________________________________ | |
1290 | Int_t AliITStrackerSA::FindLabel(Int_t l1, Int_t l2, Int_t l3, Int_t l4, Int_t l5, Int_t l6){ | |
1291 | ||
1292 | //function used to determine the track label | |
1293 | ||
1294 | Int_t lb[6] = {l1,l2,l3,l4,l5,l6}; | |
1295 | Int_t aa[6]={1,1,1,1,1,1}; | |
1296 | Int_t ff=0; | |
1297 | Int_t ll=0; | |
1298 | Int_t k=0;Int_t w=0;Int_t num=6; | |
1299 | if(lb[5]==-1) num=5; | |
1300 | ||
1301 | while(k<num){ | |
1302 | ||
1303 | for(Int_t i=k+1;i<num;i++){ | |
1304 | ||
1305 | if(lb[k]==lb[i] && aa[k]!=0){ | |
1306 | ||
1307 | aa[k]+=1; | |
1308 | aa[i]=0; | |
1309 | } | |
1310 | } | |
1311 | k++; | |
1312 | } | |
1313 | ||
1314 | while(w<num){ | |
1315 | ||
1316 | for(Int_t j=0;j<6;j++){ | |
1317 | if(aa[w]<aa[j]){ | |
1318 | ff=aa[w]; | |
1319 | aa[w]=aa[j]; | |
1320 | aa[j]=ff; | |
1321 | ll=lb[w]; | |
1322 | lb[w]=lb[j]; | |
1323 | lb[j]=ll; | |
1324 | } | |
1325 | } | |
1326 | w++; | |
1327 | } | |
1328 | if(num==6) return lb[5]; | |
1329 | else return lb[4]; | |
1330 | } | |
1331 | ||
1332 | //_____________________________________________________________________________ | |
1333 | Int_t AliITStrackerSA::Label(Int_t gl1, Int_t gl2, Int_t gl3, Int_t gl4, Int_t gl5, Int_t gl6,Int_t gl7, Int_t gl8, Int_t gl9, Int_t gl10,Int_t gl11, | |
1334 | Int_t gl12, Int_t gl13, Int_t gl14,Int_t gl15, Int_t gl16, Int_t gl17, Int_t gl18, Int_t numberofpoints){ | |
1335 | ||
1336 | ||
1337 | //function used to assign label to the found track. If track is fake, the label is negative | |
1338 | ||
1339 | Int_t lb0[6] = {gl1,gl2,gl3,gl4,gl5,gl6}; | |
1340 | Int_t lb1[6] = {gl7,gl8,gl9,gl10,gl11,gl12}; | |
1341 | Int_t lb2[6] = {gl13,gl14,gl15,gl16,gl17,gl18}; | |
1342 | Int_t ll=FindLabel(lb0[0],lb0[1],lb0[2],lb0[3],lb0[4],lb0[5]); | |
1343 | Int_t lflag=0;Int_t num=6; | |
1344 | if(lb0[5]==-1 && lb1[5]==-1 && lb2[5]==-1) num=5; | |
1345 | ||
1346 | for(Int_t i=0;i<num;i++){ | |
1347 | if(lb0[i]==ll || lb1[i]==ll || lb2[i]==ll) lflag+=1; | |
1348 | } | |
1349 | ||
1350 | if(lflag>=numberofpoints) return ll; | |
1351 | else return -ll; | |
1352 | ||
1353 | ||
1354 | } | |
1355 | ||
1356 | //_____________________________________________________________________________ | |
1357 | void AliITStrackerSA::SetWindowSizes(Int_t n, Double_t *phi, Double_t *lam){ | |
1358 | // Set sizes of the phi and lambda windows used for track finding | |
1359 | fNloop = n; | |
1360 | if(phi){ // user defined values | |
1361 | fPhiWin = new Double_t[fNloop]; | |
1362 | fLambdaWin = new Double_t[fNloop]; | |
1363 | for(Int_t k=0;k<fNloop;k++){ | |
1364 | fPhiWin[k]=phi[k]; | |
1365 | fLambdaWin[k]=lam[k]; | |
1366 | } | |
1367 | } | |
1368 | else { // default values | |
627b6db6 | 1369 | |
1370 | Double_t phid[33] = {0.002,0.003,0.004,0.0045,0.0047, | |
bef31448 | 1371 | 0.005,0.0053,0.0055, |
1372 | 0.006,0.0063,0.0065,0.007,0.0073,0.0075,0.0077, | |
1373 | 0.008,0.0083,0.0085,0.0087,0.009,0.0095,0.0097, | |
627b6db6 | 1374 | 0.01,0.0105,0.011,0.0115,0.012,0.0125,0.013,0.0135,0.0140,0.0145}; |
1375 | Double_t lambdad[33] = {0.003,0.004,0.005,0.005,0.005, | |
1376 | 0.005,0.005,0.006, | |
1377 | 0.006,0.006,0.006,0.007,0.007,0.007,0.007, | |
1378 | 0.007,0.007,0.007,0.007,0.007,0.007,0.007, | |
1379 | 0.008,0.008,0.008,0.008,0.008,0.008,0.008,0.008,0.008,0.008}; | |
bef31448 | 1380 | |
627b6db6 | 1381 | if(fNloop!=33){ |
1382 | fNloop = 33; | |
13918578 | 1383 | } |
627b6db6 | 1384 | |
1385 | ||
13918578 | 1386 | fPhiWin = new Double_t[fNloop]; |
1387 | fLambdaWin = new Double_t[fNloop]; | |
1388 | ||
1389 | for(Int_t k=0;k<fNloop;k++){ | |
1390 | fPhiWin[k]=phid[k]; | |
1391 | fLambdaWin[k]=lambdad[k]; | |
1392 | } | |
1393 | ||
1394 | } | |
1395 | ||
1396 | } | |
13918578 | 1397 |