]>
Commit | Line | Data |
---|---|---|
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> |
13918578 | 29 | #include <TObjArray.h> |
30 | #include <TTree.h> | |
bf6adc12 | 31 | |
af885e0f | 32 | #include "AliESDEvent.h" |
bf6adc12 | 33 | #include "AliESDVertex.h" |
34 | #include "AliESDtrack.h" | |
bf6adc12 | 35 | #include "AliITSVertexer.h" |
13918578 | 36 | #include "AliITSclusterTable.h" |
00a7cc50 | 37 | #include "AliITSRecPoint.h" |
cc088660 | 38 | #include "AliITSgeomTGeo.h" |
13918578 | 39 | #include "AliITStrackSA.h" |
bf6adc12 | 40 | #include "AliITStrackerSA.h" |
e340bb86 | 41 | #include "AliITSReconstructor.h" |
bf6adc12 | 42 | #include "AliRun.h" |
13918578 | 43 | |
44 | ClassImp(AliITStrackerSA) | |
45 | ||
46 | //____________________________________________________________________________ | |
e399f961 | 47 | AliITStrackerSA::AliITStrackerSA():AliITStrackerMI(), |
48 | fPhiEstimate(0), | |
1966f03c | 49 | fITSStandAlone(0), |
e399f961 | 50 | fLambdac(0), |
51 | fPhic(0), | |
52 | fCoef1(0), | |
53 | fCoef2(0), | |
54 | fCoef3(0), | |
55 | fNloop(0), | |
56 | fPhiWin(0), | |
57 | fLambdaWin(0), | |
58 | fVert(0), | |
59 | fVertexer(0), | |
e399f961 | 60 | fListOfTracks(0), |
deae0246 | 61 | fListOfSATracks(0), |
e399f961 | 62 | fITSclusters(0), |
63 | fSixPoints(0), | |
b8ed1a92 | 64 | fOuterStartLayer(0), |
3733ccd2 | 65 | fMinQ(0.), |
e399f961 | 66 | fCluLayer(0), |
67 | fCluCoord(0){ | |
13918578 | 68 | // Default constructor |
69 | Init(); | |
627b6db6 | 70 | |
13918578 | 71 | } |
2257f27e | 72 | //____________________________________________________________________________ |
cc088660 | 73 | AliITStrackerSA::AliITStrackerSA(const Char_t *geom):AliITStrackerMI(0), |
e399f961 | 74 | fPhiEstimate(0), |
1966f03c | 75 | fITSStandAlone(0), |
e399f961 | 76 | fLambdac(0), |
77 | fPhic(0), | |
78 | fCoef1(0), | |
79 | fCoef2(0), | |
80 | fCoef3(0), | |
81 | fNloop(0), | |
82 | fPhiWin(0), | |
83 | fLambdaWin(0), | |
84 | fVert(0), | |
85 | fVertexer(0), | |
e399f961 | 86 | fListOfTracks(0), |
deae0246 | 87 | fListOfSATracks(0), |
e399f961 | 88 | fITSclusters(0), |
89 | fSixPoints(0), | |
b8ed1a92 | 90 | fOuterStartLayer(0), |
3733ccd2 | 91 | fMinQ(0.), |
e399f961 | 92 | fCluLayer(0), |
93 | fCluCoord(0) | |
2257f27e | 94 | { |
95 | // Standard constructor (Vertex is known and passed to this obj.) | |
cc088660 | 96 | if (geom) { |
97 | AliWarning("\"geom\" is actually a dummy argument !"); | |
98 | } | |
99 | ||
2257f27e | 100 | Init(); |
101 | fVert = 0; | |
627b6db6 | 102 | |
2257f27e | 103 | } |
104 | ||
13918578 | 105 | //____________________________________________________________________________ |
cc088660 | 106 | AliITStrackerSA::AliITStrackerSA(const Char_t *geom, AliESDVertex *vert):AliITStrackerMI(0), |
e399f961 | 107 | fPhiEstimate(0), |
1966f03c | 108 | fITSStandAlone(0), |
e399f961 | 109 | fLambdac(0), |
110 | fPhic(0), | |
111 | fCoef1(0), | |
112 | fCoef2(0), | |
113 | fCoef3(0), | |
114 | fNloop(0), | |
115 | fPhiWin(0), | |
116 | fLambdaWin(0), | |
117 | fVert(vert), | |
118 | fVertexer(0), | |
e399f961 | 119 | fListOfTracks(0), |
deae0246 | 120 | fListOfSATracks(0), |
e399f961 | 121 | fITSclusters(0), |
122 | fSixPoints(0), | |
b8ed1a92 | 123 | fOuterStartLayer(0), |
3733ccd2 | 124 | fMinQ(0.), |
e399f961 | 125 | fCluLayer(0), |
1966f03c | 126 | fCluCoord(0) |
13918578 | 127 | { |
128 | // Standard constructor (Vertex is known and passed to this obj.) | |
cc088660 | 129 | if (geom) { |
130 | AliWarning("\"geom\" is actually a dummy argument !"); | |
131 | } | |
13918578 | 132 | Init(); |
627b6db6 | 133 | |
13918578 | 134 | } |
135 | ||
13918578 | 136 | //____________________________________________________________________________ |
cc088660 | 137 | AliITStrackerSA::AliITStrackerSA(const Char_t *geom, AliITSVertexer *vertexer):AliITStrackerMI(0), |
e399f961 | 138 | fPhiEstimate(0), |
1966f03c | 139 | fITSStandAlone(0), |
e399f961 | 140 | fLambdac(0), |
141 | fPhic(0), | |
142 | fCoef1(0), | |
143 | fCoef2(0), | |
144 | fCoef3(0), | |
145 | fNloop(0), | |
146 | fPhiWin(0), | |
147 | fLambdaWin(0), | |
148 | fVert(), | |
149 | fVertexer(vertexer), | |
e399f961 | 150 | fListOfTracks(0), |
deae0246 | 151 | fListOfSATracks(0), |
e399f961 | 152 | fITSclusters(0), |
153 | fSixPoints(0), | |
b8ed1a92 | 154 | fOuterStartLayer(0), |
3733ccd2 | 155 | fMinQ(0.), |
e399f961 | 156 | fCluLayer(0), |
1966f03c | 157 | fCluCoord(0) |
13918578 | 158 | { |
159 | // Standard constructor (Vertex is unknown - vertexer is passed to this obj) | |
cc088660 | 160 | if (geom) { |
161 | AliWarning("\"geom\" is actually a dummy argument !"); | |
162 | } | |
13918578 | 163 | Init(); |
164 | fVertexer = vertexer; | |
627b6db6 | 165 | |
13918578 | 166 | } |
167 | ||
168 | //____________________________________________________________________________ | |
e399f961 | 169 | AliITStrackerSA::AliITStrackerSA(const AliITStrackerSA& tracker):AliITStrackerMI(), |
170 | fPhiEstimate(tracker.fPhiEstimate), | |
1966f03c | 171 | fITSStandAlone(tracker.fITSStandAlone), |
e399f961 | 172 | fLambdac(tracker.fLambdac), |
173 | fPhic(tracker.fPhic), | |
174 | fCoef1(tracker.fCoef1), | |
175 | fCoef2(tracker.fCoef2), | |
176 | fCoef3(tracker.fCoef3), | |
177 | fNloop(tracker.fNloop), | |
178 | fPhiWin(tracker.fPhiWin), | |
179 | fLambdaWin(tracker.fLambdaWin), | |
180 | fVert(tracker.fVert), | |
181 | fVertexer(tracker.fVertexer), | |
e399f961 | 182 | fListOfTracks(tracker.fListOfTracks), |
deae0246 | 183 | fListOfSATracks(tracker.fListOfSATracks), |
e399f961 | 184 | fITSclusters(tracker.fITSclusters), |
185 | fSixPoints(tracker.fSixPoints), | |
b8ed1a92 | 186 | fOuterStartLayer(tracker.fOuterStartLayer), |
3733ccd2 | 187 | fMinQ(tracker.fMinQ), |
e399f961 | 188 | fCluLayer(tracker.fCluLayer), |
189 | fCluCoord(tracker.fCluCoord) { | |
13918578 | 190 | // Copy constructor |
13918578 | 191 | for(Int_t i=0;i<2;i++){ |
192 | fPoint1[i]=tracker.fPoint1[i]; | |
193 | fPoint2[i]=tracker.fPoint2[i]; | |
194 | fPoint3[i]=tracker.fPoint3[i]; | |
195 | fPointc[i]=tracker.fPointc[i]; | |
196 | } | |
13918578 | 197 | if(tracker.fVertexer && tracker.fVert){ |
d681bb2d | 198 | fVert = new AliESDVertex(*tracker.fVert); |
13918578 | 199 | } |
200 | else { | |
201 | fVert = tracker.fVert; | |
202 | } | |
cc088660 | 203 | for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){ |
7e5bf5af | 204 | fCluLayer[i] = tracker.fCluLayer[i]; |
205 | fCluCoord[i] = tracker.fCluCoord[i]; | |
206 | } | |
13918578 | 207 | } |
7d62fb64 | 208 | //______________________________________________________________________ |
e399f961 | 209 | AliITStrackerSA& AliITStrackerSA::operator=(const AliITStrackerSA& source){ |
210 | // Assignment operator. | |
211 | this->~AliITStrackerSA(); | |
212 | new(this) AliITStrackerSA(source); | |
213 | return *this; | |
214 | ||
7d62fb64 | 215 | } |
13918578 | 216 | |
217 | //____________________________________________________________________________ | |
218 | AliITStrackerSA::~AliITStrackerSA(){ | |
219 | // destructor | |
d681bb2d | 220 | // if fVertexer is not null, the AliESDVertex obj. is owned by this class |
13918578 | 221 | // and is deleted here |
222 | if(fVertexer){ | |
223 | if(fVert)delete fVert; | |
224 | } | |
225 | fVert = 0; | |
226 | fVertexer = 0; | |
7e5bf5af | 227 | |
13918578 | 228 | if(fPhiWin)delete []fPhiWin; |
229 | if(fLambdaWin)delete []fLambdaWin; | |
4e05ab9a | 230 | fListOfTracks->Delete(); |
adda6c2b | 231 | delete fListOfTracks; |
deae0246 | 232 | fListOfSATracks->Delete(); |
233 | delete fListOfSATracks; | |
7e5bf5af | 234 | if(fCluLayer){ |
cc088660 | 235 | for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){ |
7e5bf5af | 236 | if(fCluLayer[i]){ |
237 | fCluLayer[i]->Delete(); | |
238 | delete fCluLayer[i]; | |
239 | } | |
240 | } | |
241 | delete [] fCluLayer; | |
242 | } | |
243 | if(fCluCoord){ | |
cc088660 | 244 | for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){ |
7e5bf5af | 245 | if(fCluCoord[i]){ |
246 | fCluCoord[i]->Delete(); | |
247 | delete fCluCoord[i]; | |
248 | } | |
249 | } | |
250 | delete [] fCluCoord; | |
627b6db6 | 251 | } |
7e5bf5af | 252 | |
7e5bf5af | 253 | } |
13918578 | 254 | |
1966f03c | 255 | //____________________________________________________________________________ |
af885e0f | 256 | Int_t AliITStrackerSA::Clusters2Tracks(AliESDEvent *event){ |
1966f03c | 257 | // This method is used to find and fit the tracks. By default the corresponding |
258 | // method in the parent class is invoked. In this way a combined tracking | |
259 | // TPC+ITS is performed. If the flag fITSStandAlone is true, the tracking | |
260 | // is done in the ITS only. In the standard reconstruction chain this option | |
261 | // can be set via AliReconstruction::SetOption("ITS","onlyITS") | |
262 | Int_t rc=0; | |
263 | if(!fITSStandAlone){ | |
264 | rc=AliITStrackerMI::Clusters2Tracks(event); | |
265 | } | |
266 | else { | |
267 | AliDebug(1,"Stand Alone flag set: doing tracking in ITS alone\n"); | |
268 | } | |
269 | if(!rc) rc=FindTracks(event); | |
270 | return rc; | |
271 | } | |
272 | ||
13918578 | 273 | //____________________________________________________________________________ |
274 | void AliITStrackerSA::Init(){ | |
275 | // Reset all data members | |
276 | fPhiEstimate=0; | |
277 | for(Int_t i=0;i<3;i++){fPoint1[i]=0;fPoint2[i]=0;fPoint3[i]=0;} | |
278 | fLambdac=0; | |
279 | fPhic=0; | |
280 | fCoef1=0; | |
281 | fCoef2=0; | |
282 | fCoef3=0; | |
283 | fPointc[0]=0; | |
284 | fPointc[1]=0; | |
285 | fVert = 0; | |
286 | fVertexer = 0; | |
5b4dedce | 287 | Int_t nLoops=AliITSReconstructor::GetRecoParam()->GetNLoopsSA(); |
288 | if(nLoops==33){ | |
289 | SetFixedWindowSizes(); | |
290 | }else{ | |
291 | Double_t phimin=AliITSReconstructor::GetRecoParam()->GetMinPhiSA(); | |
292 | Double_t phimax=AliITSReconstructor::GetRecoParam()->GetMaxPhiSA(); | |
293 | Double_t lambmin=AliITSReconstructor::GetRecoParam()->GetMinLambdaSA(); | |
294 | Double_t lambmax=AliITSReconstructor::GetRecoParam()->GetMaxLambdaSA(); | |
295 | SetCalculatedWindowSizes(nLoops,phimin,phimax,lambmin,lambmax); | |
296 | } | |
3733ccd2 | 297 | fMinQ=AliITSReconstructor::GetRecoParam()->GetSAMinClusterCharge(); |
2257f27e | 298 | fITSclusters = 0; |
299 | SetSixPoints(); | |
b8ed1a92 | 300 | SetOuterStartLayer(0); |
1966f03c | 301 | SetSAFlag(kFALSE); |
4e05ab9a | 302 | fListOfTracks=new TObjArray(0,0); |
deae0246 | 303 | fListOfSATracks=new TObjArray(0,0); |
7e5bf5af | 304 | fCluLayer = 0; |
305 | fCluCoord = 0; | |
627b6db6 | 306 | } |
13918578 | 307 | //_______________________________________________________________________ |
308 | void AliITStrackerSA::ResetForFinding(){ | |
309 | // Reset data members used in all loops during track finding | |
310 | fPhiEstimate=0; | |
311 | for(Int_t i=0;i<3;i++){fPoint1[i]=0;fPoint2[i]=0;fPoint3[i]=0;} | |
312 | fLambdac=0; | |
313 | fPhic=0; | |
314 | fCoef1=0; | |
315 | fCoef2=0; | |
316 | fCoef3=0; | |
317 | fPointc[0]=0; | |
318 | fPointc[1]=0; | |
4e05ab9a | 319 | fListOfTracks->Delete(); |
deae0246 | 320 | fListOfSATracks->Delete(); |
13918578 | 321 | } |
bef31448 | 322 | |
7e5bf5af | 323 | |
2257f27e | 324 | |
bef31448 | 325 | //______________________________________________________________________ |
af885e0f | 326 | Int_t AliITStrackerSA::FindTracks(AliESDEvent* event){ |
bef31448 | 327 | |
7e5bf5af | 328 | // Track finder using the ESD object |
6f178e14 | 329 | |
330 | ||
deae0246 | 331 | |
2257f27e | 332 | if(!fITSclusters){ |
333 | Fatal("FindTracks","ITS cluster tree is not accessed - Abort!!!\n Please use method SetClusterTree to pass the pointer to the tree\n"); | |
334 | return -1; | |
bef31448 | 335 | } |
7e5bf5af | 336 | //Reads event and mark clusters of traks already found, with flag kITSin |
ebda3140 | 337 | Int_t nentr=event->GetNumberOfTracks(); |
5a03f353 | 338 | if(AliITSReconstructor::GetRecoParam()->GetSAUseAllClusters()==kFALSE) { |
339 | while (nentr--) { | |
340 | AliESDtrack *track=event->GetTrack(nentr); | |
5af4a2d0 | 341 | if ((track->GetStatus()&AliESDtrack::kITSin) == AliESDtrack::kITSin){ |
5a03f353 | 342 | Int_t idx[12]; |
343 | Int_t ncl = track->GetITSclusters(idx); | |
344 | for(Int_t k=0;k<ncl;k++){ | |
345 | AliITSRecPoint* cll = (AliITSRecPoint*)GetCluster(idx[k]); | |
346 | cll->SetBit(kSAflag); | |
347 | } | |
ebda3140 | 348 | } |
349 | } | |
350 | } | |
351 | //Get primary vertex | |
352 | Double_t primaryVertex[3]; | |
353 | event->GetVertex()->GetXYZ(primaryVertex); | |
354 | //Creates TClonesArray with clusters for each layer. The clusters already used | |
355 | //by AliITStrackerMI are not considered | |
deae0246 | 356 | Int_t nclusters[AliITSgeomTGeo::kNLayers]={0,0,0,0,0,0}; |
357 | Int_t dmar[AliITSgeomTGeo::kNLayers]={0,0,0,0,0,0}; | |
ebda3140 | 358 | if (fCluLayer == 0) { |
deae0246 | 359 | fCluLayer = new TClonesArray*[AliITSgeomTGeo::kNLayers]; |
360 | fCluCoord = new TClonesArray*[AliITSgeomTGeo::kNLayers]; | |
ebda3140 | 361 | for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++) { |
362 | fCluLayer[i]=0; | |
363 | fCluCoord[i]=0; | |
364 | } | |
365 | } | |
ebda3140 | 366 | for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){ |
ebda3140 | 367 | AliITSlayer &layer=fgLayers[i]; |
25be2b21 | 368 | if (!AliITSReconstructor::GetRecoParam()->GetLayersToSkip(i)) { |
369 | for(Int_t cli=0;cli<layer.GetNumberOfClusters();cli++){ | |
370 | AliITSRecPoint* cls = (AliITSRecPoint*)layer.GetCluster(cli); | |
371 | if(cls->TestBit(kSAflag)==kTRUE) continue; //clusters used by TPC prol. | |
372 | if(cls->GetQ()==0) continue; //fake clusters dead zones | |
3733ccd2 | 373 | if(i>1 && cls->GetQ()<=fMinQ) continue; // cut on SDD and SSD cluster charge |
25be2b21 | 374 | nclusters[i]++; |
375 | } | |
ebda3140 | 376 | } |
377 | dmar[i]=0; | |
378 | delete fCluLayer[i]; | |
379 | fCluLayer[i] = new TClonesArray("AliITSRecPoint",nclusters[i]); | |
380 | delete fCluCoord[i]; | |
381 | fCluCoord[i] = new TClonesArray("AliITSclusterTable",nclusters[i]); | |
382 | } | |
383 | ||
384 | for(Int_t ilay=0;ilay<AliITSgeomTGeo::GetNLayers();ilay++){ | |
385 | TClonesArray &clulay = *fCluLayer[ilay]; | |
386 | TClonesArray &clucoo = *fCluCoord[ilay]; | |
387 | AliITSlayer &layer=fgLayers[ilay]; | |
25be2b21 | 388 | if (!AliITSReconstructor::GetRecoParam()->GetLayersToSkip(ilay)) { |
389 | for(Int_t cli=0;cli<layer.GetNumberOfClusters();cli++){ | |
390 | AliITSRecPoint* cls = (AliITSRecPoint*)layer.GetCluster(cli); | |
391 | if(cls->TestBit(kSAflag)==kTRUE) continue; | |
392 | if(cls->GetQ()==0) continue; | |
3733ccd2 | 393 | if(ilay>1 && cls->GetQ()<=fMinQ) continue; |
25be2b21 | 394 | Double_t phi=0;Double_t lambda=0; |
395 | Float_t x=0;Float_t y=0;Float_t z=0; | |
396 | Float_t sx=0;Float_t sy=0;Float_t sz=0; | |
397 | GetCoorAngles(cls,phi,lambda,x,y,z,primaryVertex); | |
398 | GetCoorErrors(cls,sx,sy,sz); | |
399 | new (clulay[dmar[ilay]]) AliITSRecPoint(*cls); | |
400 | new (clucoo[dmar[ilay]]) AliITSclusterTable(x,y,z,sx,sy,sz,phi,lambda,cli); | |
401 | dmar[ilay]++; | |
402 | } | |
ebda3140 | 403 | } |
404 | } | |
7e5bf5af | 405 | |
6f178e14 | 406 | // track counter |
407 | Int_t ntrack=0; | |
408 | ||
ebda3140 | 409 | Int_t minNPoints = (fSixPoints ? AliITSgeomTGeo::GetNLayers() : AliITSgeomTGeo::GetNLayers()-1); |
410 | for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++) { | |
411 | if(AliITSReconstructor::GetRecoParam()->GetLayersToSkip(i)) { | |
412 | minNPoints--; | |
413 | } | |
414 | } | |
7e5bf5af | 415 | |
deae0246 | 416 | static Int_t nClusLay[AliITSgeomTGeo::kNLayers];//counter for clusters on each layer |
6f178e14 | 417 | |
418 | //loop on different minNPoints | |
419 | Int_t minMinNPoints=minNPoints; | |
9870291d | 420 | if(AliITSReconstructor::GetRecoParam()->GetAllowProlongationWithEmptyRoad()) minMinNPoints=2; |
6f178e14 | 421 | for(Int_t iMinNPoints=minNPoints; iMinNPoints>=minMinNPoints; iMinNPoints--) { |
422 | //loop on the different windows | |
423 | for(Int_t nloop=0;nloop<fNloop;nloop++){ | |
424 | for(Int_t ncl=0;ncl<fCluLayer[0]->GetEntries();ncl++){ //loop starting from layer 0 | |
ebda3140 | 425 | |
6f178e14 | 426 | ResetForFinding(); |
427 | Int_t pflag=0; | |
ebda3140 | 428 | |
6f178e14 | 429 | AliITSRecPoint* cl = (AliITSRecPoint*)fCluLayer[0]->At(ncl); |
ebda3140 | 430 | |
6f178e14 | 431 | if(!cl) continue; |
432 | if (cl->GetQ()<=0) continue; | |
3733ccd2 | 433 | |
6f178e14 | 434 | AliITSclusterTable* arr = (AliITSclusterTable*)GetClusterCoord(0,ncl); |
435 | fPhic = arr->GetPhi(); | |
436 | fLambdac = arr->GetLambda(); | |
6f178e14 | 437 | fPhiEstimate = fPhic; |
438 | AliITStrackSA* trs = new AliITStrackSA(); | |
439 | fPoint1[0]=primaryVertex[0]; | |
440 | fPoint1[1]=primaryVertex[1]; | |
441 | ||
442 | ||
443 | fPoint2[0]=arr->GetX(); | |
444 | fPoint2[1]=arr->GetY(); | |
445 | for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++) nClusLay[i]=0; | |
446 | nClusLay[0] = SearchClusters(0,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); | |
447 | nClusLay[1] = SearchClusters(1,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); | |
448 | if(nClusLay[1]>0){ | |
449 | pflag=1; | |
450 | fPoint3[0] = fPointc[0]; | |
451 | fPoint3[1] = fPointc[1]; | |
452 | } | |
453 | nClusLay[2] = SearchClusters(2,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); | |
454 | if(nClusLay[1]==0 && nClusLay[2]==0) pflag=0; | |
455 | if(nClusLay[2]!=0 && nClusLay[1]!=0){ pflag=1; UpdatePoints();} | |
456 | if(nClusLay[2]!=0 && nClusLay[1]==0){ | |
457 | pflag=1; | |
458 | fPoint3[0]=fPointc[0]; | |
459 | fPoint3[1]=fPointc[1]; | |
460 | } | |
461 | ||
462 | nClusLay[3] = SearchClusters(3,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); | |
463 | pflag=1; | |
464 | if(nClusLay[3]!=0) UpdatePoints(); | |
465 | nClusLay[4] = SearchClusters(4,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); | |
466 | pflag=1; | |
467 | if(nClusLay[4]!=0) UpdatePoints(); | |
468 | nClusLay[5] = SearchClusters(5,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag); | |
469 | ||
470 | ||
471 | Int_t layOK=0; | |
472 | //check of the candidate track | |
473 | for(Int_t nnp=0;nnp<AliITSgeomTGeo::GetNLayers();nnp++) { | |
474 | if(nClusLay[nnp]!=0) layOK+=1; | |
475 | } | |
476 | ||
477 | if(layOK>=iMinNPoints) { | |
8403ece4 | 478 | //printf("-NPOINTS: %d; MAP: %d %d %d %d %d %d\n",layOK,nClusLay[0],nClusLay[1],nClusLay[2],nClusLay[3],nClusLay[4],nClusLay[5]); |
6f178e14 | 479 | AliITStrackV2* tr2 = 0; |
480 | tr2 = FitTrack(trs,primaryVertex); | |
481 | if(!tr2) continue; | |
8403ece4 | 482 | //printf("-NPOINTS fit: %d\n",tr2->GetNumberOfClusters()); |
483 | ||
c421499f | 484 | StoreTrack(tr2,event); |
6f178e14 | 485 | ntrack++; |
486 | } | |
487 | delete trs; | |
488 | }//end loop on clusters of layer1 | |
489 | }//end loop on windows | |
490 | }//end loop on min points | |
2755f080 | 491 | |
7e5bf5af | 492 | |
ebda3140 | 493 | minNPoints--; |
7e5bf5af | 494 | |
ebda3140 | 495 | //if 5/6 points are required, second loop starting |
496 | //from second layer (SPD2), to find tracks with point of | |
8403ece4 | 497 | //layer 1 missing. Not done for cosmics. |
498 | if(!fSixPoints && fOuterStartLayer==0) { | |
ebda3140 | 499 | //printf("looking from SPD2\n"); |
500 | // counter for clusters on each layer | |
ebda3140 | 501 | for(Int_t nloop=0;nloop<fNloop;nloop++){ |
502 | Int_t ncl2=fCluLayer[1]->GetEntries(); | |
503 | while(ncl2--){ //loop starting from layer 2 | |
504 | ResetForFinding(); | |
505 | Int_t pflag=0; | |
506 | AliITSRecPoint* cl = (AliITSRecPoint*)fCluLayer[1]->At(ncl2); | |
507 | ||
508 | if(!cl) continue; | |
509 | AliITSclusterTable* arr = (AliITSclusterTable*)GetClusterCoord(1,ncl2); | |
510 | fPhic = arr->GetPhi(); | |
511 | fLambdac = arr->GetLambda(); | |
512 | fPhiEstimate = fPhic; | |
513 | ||
514 | AliITStrackSA* trs = new AliITStrackSA(); | |
515 | fPoint1[0]=primaryVertex[0]; | |
516 | fPoint1[1]=primaryVertex[1]; | |
517 | ||
518 | fPoint2[0]=arr->GetX(); | |
519 | fPoint2[1]=arr->GetY(); | |
deae0246 | 520 | for(Int_t kk=0;kk<AliITSgeomTGeo::GetNLayers();kk++) nClusLay[kk] = 0; |
521 | nClusLay[0] = SearchClusters(1,fPhiWin[nloop],fLambdaWin[nloop], | |
ebda3140 | 522 | trs,primaryVertex[2],pflag); |
deae0246 | 523 | nClusLay[1] = SearchClusters(2,fPhiWin[nloop],fLambdaWin[nloop], |
ebda3140 | 524 | trs,primaryVertex[2],pflag); |
deae0246 | 525 | if(nClusLay[1]!=0){ |
ebda3140 | 526 | pflag=1; |
527 | fPoint3[0]=fPointc[0]; | |
528 | fPoint3[1]=fPointc[1]; | |
529 | } | |
deae0246 | 530 | nClusLay[2]= SearchClusters(3,fPhiWin[nloop],fLambdaWin[nloop], |
ebda3140 | 531 | trs,primaryVertex[2],pflag); |
deae0246 | 532 | if(nClusLay[2]!=0){ |
ebda3140 | 533 | pflag=1; |
534 | UpdatePoints(); | |
535 | } | |
deae0246 | 536 | nClusLay[3]= SearchClusters(4,fPhiWin[nloop],fLambdaWin[nloop], |
ebda3140 | 537 | trs,primaryVertex[2],pflag); |
deae0246 | 538 | if(nClusLay[3]!=0){ |
ebda3140 | 539 | pflag=1; |
540 | UpdatePoints(); | |
541 | } | |
deae0246 | 542 | nClusLay[4]=SearchClusters(5,fPhiWin[nloop],fLambdaWin[nloop], |
ebda3140 | 543 | trs,primaryVertex[2],pflag); |
544 | ||
5a03f353 | 545 | Int_t layOK=0; |
ebda3140 | 546 | for(Int_t nnp=0;nnp<AliITSgeomTGeo::GetNLayers()-1;nnp++){ |
deae0246 | 547 | if(nClusLay[nnp]!=0) layOK+=1; |
ebda3140 | 548 | } |
8403ece4 | 549 | if(layOK>=minNPoints){ // 5/6 |
550 | //printf("--NPOINTS: %d; MAP: %d %d %d %d %d %d\n",layOK,nClusLay[0],nClusLay[1],nClusLay[2],nClusLay[3],nClusLay[4],nClusLay[5]); | |
551 | ||
ebda3140 | 552 | AliITStrackV2* tr2 = 0; |
553 | tr2 = FitTrack(trs,primaryVertex); | |
554 | if(!tr2) continue; | |
8403ece4 | 555 | //printf("--NPOINTS fit: %d\n",tr2->GetNumberOfClusters()); |
ebda3140 | 556 | |
c421499f | 557 | StoreTrack(tr2,event); |
ebda3140 | 558 | ntrack++; |
559 | ||
560 | } | |
561 | ||
bef31448 | 562 | delete trs; |
563 | }//end loop on clusters of layer2 | |
ebda3140 | 564 | } |
565 | ||
ebda3140 | 566 | } //end opt="5/6" |
567 | ||
568 | // search for tracks starting from SPD2, SDD1, SDD2, SSD2 | |
569 | // for cosmics (A. Dainese 31.07.07) | |
9870291d | 570 | if(fOuterStartLayer>0 && !AliITSReconstructor::GetRecoParam()->GetAllowProlongationWithEmptyRoad()) { |
ebda3140 | 571 | for(Int_t innLay=1; innLay<=fOuterStartLayer; innLay++) { |
572 | //printf("Searching from layer %d outward\n",innLay); | |
573 | minNPoints=AliITSgeomTGeo::GetNLayers()-innLay; | |
574 | for(Int_t i=innLay;i<AliITSgeomTGeo::GetNLayers();i++) | |
575 | if(AliITSReconstructor::GetRecoParam()->GetLayersToSkip(i)) | |
576 | minNPoints--; | |
577 | // counter for clusters on each layer | |
deae0246 | 578 | |
ebda3140 | 579 | for(Int_t nloop=0;nloop<fNloop;nloop++){ |
580 | Int_t nclInnLay=fCluLayer[innLay]->GetEntries(); | |
581 | while(nclInnLay--){ //loop starting from layer innLay | |
582 | ResetForFinding(); | |
583 | Int_t pflag=0; | |
584 | AliITSRecPoint* cl = (AliITSRecPoint*)fCluLayer[innLay]->At(nclInnLay); | |
585 | ||
586 | if(!cl) continue; | |
587 | AliITSclusterTable* arr = (AliITSclusterTable*)GetClusterCoord(innLay,nclInnLay); | |
588 | fPhic = arr->GetPhi(); | |
589 | fLambdac = arr->GetLambda(); | |
590 | fPhiEstimate = fPhic; | |
591 | ||
592 | AliITStrackSA* trs = new AliITStrackSA(); | |
593 | fPoint1[0]=primaryVertex[0]; | |
594 | fPoint1[1]=primaryVertex[1]; | |
595 | fPoint2[0]=arr->GetX(); | |
596 | fPoint2[1]=arr->GetY(); | |
597 | ||
598 | Int_t kk; | |
deae0246 | 599 | for(kk=0;kk<AliITSgeomTGeo::GetNLayers();kk++) nClusLay[kk] = 0; |
ebda3140 | 600 | |
601 | kk=0; | |
deae0246 | 602 | nClusLay[kk] = SearchClusters(innLay,fPhiWin[nloop],fLambdaWin[nloop], |
b8ed1a92 | 603 | trs,primaryVertex[2],pflag); |
ebda3140 | 604 | for(Int_t nextLay=innLay+1; nextLay<AliITSgeomTGeo::GetNLayers(); nextLay++) { |
605 | kk++; | |
deae0246 | 606 | nClusLay[kk] = SearchClusters(nextLay,fPhiWin[nloop],fLambdaWin[nloop], |
ebda3140 | 607 | trs,primaryVertex[2],pflag); |
deae0246 | 608 | if(nClusLay[kk]!=0){ |
ebda3140 | 609 | pflag=1; |
610 | if(kk==1) { | |
611 | fPoint3[0]=fPointc[0]; | |
612 | fPoint3[1]=fPointc[1]; | |
613 | } else { | |
614 | UpdatePoints(); | |
615 | } | |
616 | } | |
617 | } | |
618 | ||
5a03f353 | 619 | Int_t layOK=0; |
ebda3140 | 620 | for(Int_t nnp=0;nnp<AliITSgeomTGeo::GetNLayers()-innLay;nnp++){ |
deae0246 | 621 | if(nClusLay[nnp]!=0) layOK+=1; |
ebda3140 | 622 | } |
5a03f353 | 623 | if(layOK>=minNPoints){ |
8403ece4 | 624 | //printf("---NPOINTS: %d; MAP: %d %d %d %d %d %d\n",layOK,nClusLay[0],nClusLay[1],nClusLay[2],nClusLay[3],nClusLay[4],nClusLay[5]); |
ebda3140 | 625 | AliITStrackV2* tr2 = 0; |
626 | tr2 = FitTrack(trs,primaryVertex); | |
627 | if(!tr2) continue; | |
8403ece4 | 628 | //printf("---NPOINTS fit: %d\n",tr2->GetNumberOfClusters()); |
ebda3140 | 629 | |
c421499f | 630 | StoreTrack(tr2,event); |
ebda3140 | 631 | ntrack++; |
632 | ||
633 | } | |
634 | ||
635 | delete trs; | |
636 | }//end loop on clusters of innLay | |
637 | } //end loop on window sizes | |
638 | ||
ebda3140 | 639 | } //end loop on innLay |
640 | } //end if(fOuterStartLayer>0) | |
641 | ||
5a03f353 | 642 | |
8403ece4 | 643 | // search for 1-point tracks in SPD, only for cosmics |
5a03f353 | 644 | // (A.Dainese 21.03.08) |
645 | if(AliITSReconstructor::GetRecoParam()->GetSAOnePointTracks() && | |
646 | TMath::Abs(event->GetMagneticField())<0.01) { | |
8403ece4 | 647 | Int_t outerLayer=1; // only SPD |
648 | for(Int_t innLay=0; innLay<=TMath::Min(1,fOuterStartLayer); innLay++) { | |
5a03f353 | 649 | // counter for clusters on each layer |
deae0246 | 650 | |
5a03f353 | 651 | for(Int_t nloop=0;nloop<fNloop;nloop++){ |
652 | Int_t nclInnLay=fCluLayer[innLay]->GetEntries(); | |
653 | while(nclInnLay--){ //loop starting from layer innLay | |
654 | ResetForFinding(); | |
655 | Int_t pflag=0; | |
656 | AliITSRecPoint* cl = (AliITSRecPoint*)fCluLayer[innLay]->At(nclInnLay); | |
657 | ||
658 | if(!cl) continue; | |
659 | AliITSclusterTable* arr = (AliITSclusterTable*)GetClusterCoord(innLay,nclInnLay); | |
660 | fPhic = arr->GetPhi(); | |
661 | fLambdac = arr->GetLambda(); | |
662 | fPhiEstimate = fPhic; | |
663 | ||
664 | AliITStrackSA* trs = new AliITStrackSA(); | |
665 | fPoint1[0]=primaryVertex[0]; | |
666 | fPoint1[1]=primaryVertex[1]; | |
667 | fPoint2[0]=arr->GetX(); | |
668 | fPoint2[1]=arr->GetY(); | |
669 | ||
670 | Int_t kk; | |
deae0246 | 671 | for(kk=0;kk<AliITSgeomTGeo::GetNLayers();kk++) nClusLay[kk] = 0; |
5a03f353 | 672 | |
673 | kk=0; | |
deae0246 | 674 | nClusLay[kk] = SearchClusters(innLay,fPhiWin[nloop],fLambdaWin[nloop], |
5a03f353 | 675 | trs,primaryVertex[2],pflag); |
8403ece4 | 676 | for(Int_t nextLay=innLay+1; nextLay<=outerLayer; nextLay++) { |
5a03f353 | 677 | kk++; |
deae0246 | 678 | nClusLay[kk] = SearchClusters(nextLay,fPhiWin[nloop],fLambdaWin[nloop], |
5a03f353 | 679 | trs,primaryVertex[2],pflag); |
deae0246 | 680 | if(nClusLay[kk]!=0){ |
5a03f353 | 681 | pflag=1; |
682 | if(kk==1) { | |
683 | fPoint3[0]=fPointc[0]; | |
684 | fPoint3[1]=fPointc[1]; | |
685 | } else { | |
686 | UpdatePoints(); | |
687 | } | |
688 | } | |
689 | } | |
690 | ||
691 | Int_t layOK=0; | |
692 | for(Int_t nnp=0;nnp<AliITSgeomTGeo::GetNLayers()-innLay;nnp++){ | |
deae0246 | 693 | if(nClusLay[nnp]!=0) layOK+=1; |
5a03f353 | 694 | } |
695 | if(layOK==1) { | |
8403ece4 | 696 | //printf("----NPOINTS: %d; MAP: %d %d %d %d %d %d\n",layOK,nClusLay[0],nClusLay[1],nClusLay[2],nClusLay[3],nClusLay[4],nClusLay[5]); |
5a03f353 | 697 | AliITStrackV2* tr2 = 0; |
698 | Bool_t onePoint = kTRUE; | |
699 | tr2 = FitTrack(trs,primaryVertex,onePoint); | |
700 | if(!tr2) continue; | |
8403ece4 | 701 | //printf("----NPOINTS fit: %d\n",tr2->GetNumberOfClusters()); |
5a03f353 | 702 | |
c421499f | 703 | StoreTrack(tr2,event); |
5a03f353 | 704 | ntrack++; |
705 | ||
706 | } | |
707 | ||
708 | delete trs; | |
709 | }//end loop on clusters of innLay | |
710 | } //end loop on window sizes | |
711 | ||
5a03f353 | 712 | } //end loop on innLay |
713 | } // end search 1-point tracks | |
ebda3140 | 714 | |
bef31448 | 715 | Info("FindTracks","Number of found tracks: %d",event->GetNumberOfTracks()); |
2257f27e | 716 | return 0; |
bef31448 | 717 | |
718 | } | |
7e5bf5af | 719 | |
13918578 | 720 | //________________________________________________________________________ |
721 | ||
5a03f353 | 722 | AliITStrackV2* AliITStrackerSA::FitTrack(AliITStrackSA* tr,Double_t *primaryVertex,Bool_t onePoint) { |
ebda3140 | 723 | //fit of the found track (most general case, also <6 points, layers missing) |
724 | // A.Dainese 16.11.07 | |
13918578 | 725 | |
13918578 | 726 | |
deae0246 | 727 | const Int_t kMaxClu=AliITStrackSA::kMaxNumberOfClusters; |
13918578 | 728 | |
deae0246 | 729 | static Int_t firstmod[AliITSgeomTGeo::kNLayers]; |
730 | ||
731 | static Int_t clind[AliITSgeomTGeo::kNLayers][kMaxClu]; | |
732 | static Int_t clmark[AliITSgeomTGeo::kNLayers][kMaxClu]; | |
733 | static Int_t nnn[AliITSgeomTGeo::kNLayers]; | |
734 | static Int_t kkk[AliITSgeomTGeo::kNLayers]; | |
735 | static Int_t end[AliITSgeomTGeo::kNLayers]; | |
736 | static AliITSRecPoint *listlayer[AliITSgeomTGeo::kNLayers][kMaxClu]; | |
13918578 | 737 | |
ebda3140 | 738 | for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++) { |
b8ed1a92 | 739 | firstmod[i]=AliITSgeomTGeo::GetModuleIndex(i+1,1,1); |
ebda3140 | 740 | nnn[i]=0; |
741 | kkk[i]=0; | |
deae0246 | 742 | end[i]=0; |
743 | for(Int_t j=0;j<kMaxClu; j++){ | |
ebda3140 | 744 | clind[i][j]=0; |
745 | clmark[i][j]=0; | |
deae0246 | 746 | listlayer[i][j]=0; |
747 | } | |
b8ed1a92 | 748 | } |
2755f080 | 749 | |
2755f080 | 750 | |
751 | Int_t nclusters = tr->GetNumberOfClustersSA(); | |
2755f080 | 752 | for(Int_t ncl=0;ncl<nclusters;ncl++){ |
753 | Int_t index = tr->GetClusterIndexSA(ncl); | |
754 | AliITSRecPoint* cl = (AliITSRecPoint*)GetCluster(index); | |
755 | if(cl->TestBit(kSAflag)==kTRUE) cl->ResetBit(kSAflag); | |
756 | Int_t lay = (index & 0xf0000000) >> 28; | |
deae0246 | 757 | Int_t nInLay=end[lay]; |
758 | listlayer[lay][nInLay]=cl; | |
ebda3140 | 759 | Int_t ind=nnn[lay]; |
760 | clind[lay][ind]=index; | |
deae0246 | 761 | end[lay]++; |
2755f080 | 762 | } |
2755f080 | 763 | |
764 | for(Int_t nlay=0;nlay<AliITSgeomTGeo::GetNLayers();nlay++){ | |
765 | for(Int_t ncl=0;ncl<tr->GetNumberOfMarked(nlay);ncl++){ | |
766 | Int_t mark = tr->GetClusterMark(nlay,ncl); | |
ebda3140 | 767 | Int_t ind=kkk[nlay]; |
768 | clmark[nlay][ind]=mark; | |
2755f080 | 769 | } |
770 | } | |
771 | ||
2755f080 | 772 | |
773 | Int_t firstLay=-1,secondLay=-1; | |
2755f080 | 774 | for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++) { |
deae0246 | 775 | if(end[i]==0) { |
2755f080 | 776 | end[i]=1; |
deae0246 | 777 | }else{ |
2755f080 | 778 | if(firstLay==-1) { |
779 | firstLay=i; | |
780 | } else if(secondLay==-1) { | |
781 | secondLay=i; | |
782 | } | |
783 | } | |
784 | } | |
785 | ||
deae0246 | 786 | if(firstLay==-1 || (secondLay==-1 && !onePoint)) return 0; |
787 | ||
2755f080 | 788 | for(Int_t l0=0;l0<end[0];l0++){ //loop on layer 1 |
deae0246 | 789 | AliITSRecPoint* cl0 = (AliITSRecPoint*)listlayer[0][l0]; |
2755f080 | 790 | for(Int_t l1=0;l1<end[1];l1++){ //loop on layer 2 |
deae0246 | 791 | AliITSRecPoint* cl1 = (AliITSRecPoint*)listlayer[1][l1]; |
2755f080 | 792 | for(Int_t l2=0;l2<end[2];l2++){ //loop on layer 3 |
deae0246 | 793 | AliITSRecPoint* cl2 = (AliITSRecPoint*)listlayer[2][l2]; |
2755f080 | 794 | for(Int_t l3=0;l3<end[3];l3++){ //loop on layer 4 |
deae0246 | 795 | AliITSRecPoint* cl3 = (AliITSRecPoint*)listlayer[3][l3]; |
2755f080 | 796 | for(Int_t l4=0;l4<end[4];l4++){ //loop on layer 5 |
deae0246 | 797 | AliITSRecPoint* cl4 = (AliITSRecPoint*)listlayer[4][l4]; |
2755f080 | 798 | for(Int_t l5=0;l5<end[5];l5++){ //loop on layer 6 |
deae0246 | 799 | AliITSRecPoint* cl5 = (AliITSRecPoint*)listlayer[5][l5]; |
2755f080 | 800 | |
801 | ||
802 | Double_t x1,y1,z1,sx1,sy1,sz1; | |
803 | Double_t x2,y2,z2,sx2,sy2,sz2; | |
804 | AliITSRecPoint* p1=0; | |
805 | AliITSRecPoint* p2=0; | |
806 | Int_t index1=0,index2=0; | |
807 | Int_t mrk1=0,mrk2=0; | |
808 | ||
809 | switch(firstLay) { | |
810 | case 0: | |
811 | p1=cl0; | |
ebda3140 | 812 | index1=clind[0][l0];mrk1=clmark[0][l0]; |
2755f080 | 813 | break; |
814 | case 1: | |
815 | p1=cl1; | |
ebda3140 | 816 | index1=clind[1][l1];mrk1=clmark[1][l1]; |
2755f080 | 817 | break; |
818 | case 2: | |
819 | p1=cl2; | |
ebda3140 | 820 | index1=clind[2][l2];mrk1=clmark[2][l2]; |
2755f080 | 821 | break; |
822 | case 3: | |
823 | p1=cl3; | |
ebda3140 | 824 | index1=clind[3][l3];mrk1=clmark[3][l3]; |
2755f080 | 825 | break; |
826 | case 4: | |
827 | p1=cl4; | |
ebda3140 | 828 | index1=clind[4][l4];mrk1=clmark[4][l4]; |
2755f080 | 829 | break; |
830 | } | |
831 | ||
832 | switch(secondLay) { | |
833 | case 1: | |
834 | p2=cl1; | |
ebda3140 | 835 | index2=clind[1][l1];mrk2=clmark[1][l1]; |
2755f080 | 836 | break; |
837 | case 2: | |
838 | p2=cl2; | |
ebda3140 | 839 | index2=clind[2][l2];mrk2=clmark[2][l2]; |
2755f080 | 840 | break; |
841 | case 3: | |
842 | p2=cl3; | |
ebda3140 | 843 | index2=clind[3][l3];mrk2=clmark[3][l3]; |
2755f080 | 844 | break; |
845 | case 4: | |
846 | p2=cl4; | |
ebda3140 | 847 | index2=clind[4][l4];mrk2=clmark[4][l4]; |
2755f080 | 848 | break; |
849 | case 5: | |
850 | p2=cl5; | |
ebda3140 | 851 | index2=clind[5][l5];mrk2=clmark[5][l5]; |
2755f080 | 852 | break; |
5a03f353 | 853 | default: |
854 | p2=0; | |
855 | index2=-1;mrk2=-1; | |
856 | break; | |
2755f080 | 857 | } |
858 | ||
859 | Int_t module1 = p1->GetDetectorIndex()+firstmod[firstLay]; | |
5a03f353 | 860 | Int_t layer,ladder,detector; |
861 | AliITSgeomTGeo::GetModuleId(module1,layer,ladder,detector); | |
862 | Float_t yclu1 = p1->GetY(); | |
863 | Float_t zclu1 = p1->GetZ(); | |
864 | Double_t cv=0,tgl2=0,phi2=0; | |
2755f080 | 865 | |
866 | Int_t cln1=mrk1; | |
2755f080 | 867 | AliITSclusterTable* arr1 = (AliITSclusterTable*)GetClusterCoord(firstLay,cln1); |
2755f080 | 868 | x1 = arr1->GetX(); |
2755f080 | 869 | y1 = arr1->GetY(); |
2755f080 | 870 | z1 = arr1->GetZ(); |
2755f080 | 871 | sx1 = arr1->GetSx(); |
2755f080 | 872 | sy1 = arr1->GetSy(); |
2755f080 | 873 | sz1 = arr1->GetSz(); |
225a692b | 874 | |
5a03f353 | 875 | if(secondLay>0) { |
876 | Int_t cln2=mrk2; | |
877 | AliITSclusterTable* arr2 = (AliITSclusterTable*)GetClusterCoord(secondLay,cln2); | |
878 | x2 = arr2->GetX(); | |
879 | y2 = arr2->GetY(); | |
880 | z2 = arr2->GetZ(); | |
881 | sx2 = arr2->GetSx(); | |
882 | sy2 = arr2->GetSy(); | |
883 | sz2 = arr2->GetSz(); | |
884 | cv = Curvature(primaryVertex[0],primaryVertex[1],x1,y1,x2,y2); | |
885 | tgl2 = (z2-z1)/TMath::Sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1)); | |
886 | phi2 = TMath::ATan2((y2-y1),(x2-x1)); | |
887 | } else { // special case of 1-point tracks, only for cosmics (B=0) | |
888 | x2 = primaryVertex[0]; | |
889 | y2 = primaryVertex[1]; | |
890 | z2 = primaryVertex[2]; | |
891 | cv = 0; | |
892 | tgl2 = (z1-z2)/TMath::Sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)); | |
893 | phi2 = TMath::ATan2((y1-y2),(x1-x2)); | |
894 | } | |
895 | ||
896 | ||
2755f080 | 897 | AliITStrackSA* trac = new AliITStrackSA(layer,ladder,detector,yclu1,zclu1,phi2,tgl2,cv,1); |
225a692b | 898 | |
899 | ||
2755f080 | 900 | if(cl5!=0) { |
ebda3140 | 901 | trac->AddClusterV2(5,(clind[5][l5] & 0x0fffffff)>>0); |
902 | trac->AddClusterMark(5,clmark[5][l5]); | |
b8ed1a92 | 903 | } |
904 | if(cl4!=0){ | |
ebda3140 | 905 | trac->AddClusterV2(4,(clind[4][l4] & 0x0fffffff)>>0); |
906 | trac->AddClusterMark(4,clmark[4][l4]); | |
b8ed1a92 | 907 | } |
908 | if(cl3!=0){ | |
ebda3140 | 909 | trac->AddClusterV2(3,(clind[3][l3] & 0x0fffffff)>>0); |
910 | trac->AddClusterMark(3,clmark[3][l3]); | |
b8ed1a92 | 911 | } |
912 | if(cl2!=0){ | |
ebda3140 | 913 | trac->AddClusterV2(2,(clind[2][l2] & 0x0fffffff)>>0); |
914 | trac->AddClusterMark(2,clmark[2][l2]); | |
b8ed1a92 | 915 | } |
916 | if(cl1!=0){ | |
ebda3140 | 917 | trac->AddClusterV2(1,(clind[1][l1] & 0x0fffffff)>>0); |
918 | trac->AddClusterMark(1,clmark[1][l1]); | |
b8ed1a92 | 919 | } |
920 | if(cl0!=0){ | |
ebda3140 | 921 | trac->AddClusterV2(0,(clind[0][l0] & 0x0fffffff)>>0); |
922 | trac->AddClusterMark(0,clmark[0][l0]); | |
b8ed1a92 | 923 | } |
924 | ||
b8ed1a92 | 925 | //fit with Kalman filter using AliITStrackerMI::RefitAt() |
926 | AliITStrackMI* ot = new AliITStrackSA(*trac); | |
927 | ||
928 | ot->ResetCovariance(10.); | |
929 | ot->ResetClusters(); | |
930 | ||
e50912db | 931 | if(RefitAt(AliITSRecoParam::GetrInsideITSscreen(),ot,trac)){ //fit from layer 1 to layer 6 |
b8ed1a92 | 932 | AliITStrackMI *otrack2 = new AliITStrackMI(*ot); |
933 | otrack2->ResetCovariance(10.); | |
934 | otrack2->ResetClusters(); | |
935 | //fit from layer 6 to layer 1 | |
e50912db | 936 | if(RefitAt(AliITSRecoParam::GetrInsideSPD1(),otrack2,ot)) { |
b8ed1a92 | 937 | fListOfTracks->AddLast(otrack2); |
deae0246 | 938 | fListOfSATracks->AddLast(trac); |
b8ed1a92 | 939 | } else { |
940 | delete otrack2; | |
deae0246 | 941 | delete trac; |
b8ed1a92 | 942 | } |
943 | ||
944 | } | |
945 | ||
946 | delete ot; | |
b8ed1a92 | 947 | }//end loop layer 6 |
948 | }//end loop layer 5 | |
949 | }//end loop layer 4 | |
950 | }//end loop layer 3 | |
951 | }//end loop layer 2 | |
952 | }//end loop layer 1 | |
953 | ||
b8ed1a92 | 954 | |
225a692b | 955 | |
b8ed1a92 | 956 | |
deae0246 | 957 | if(fListOfTracks->GetEntries()==0) return 0; |
b8ed1a92 | 958 | |
deae0246 | 959 | Int_t lowchi2 = FindTrackLowChiSquare(); |
b8ed1a92 | 960 | AliITStrackV2* otrack =(AliITStrackV2*)fListOfTracks->At(lowchi2); |
deae0246 | 961 | AliITStrackSA* trsa = (AliITStrackSA*)fListOfSATracks->At(lowchi2); |
b8ed1a92 | 962 | |
deae0246 | 963 | if(otrack==0) return 0; |
964 | ||
965 | Int_t indexc[AliITSgeomTGeo::kNLayers]; | |
b8ed1a92 | 966 | for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++) indexc[i]=0; |
967 | for(Int_t nind=0;nind<otrack->GetNumberOfClusters();nind++){ | |
968 | indexc[nind] = otrack->GetClusterIndex(nind); | |
969 | } | |
970 | Int_t labl[6][3]; | |
971 | for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++) { | |
972 | if(i<otrack->GetNumberOfClusters()) { | |
973 | AliITSRecPoint* cl = (AliITSRecPoint*)GetCluster(indexc[i]); | |
974 | labl[i][0]=cl->GetLabel(0); | |
975 | labl[i][1]=cl->GetLabel(1); | |
976 | labl[i][2]=cl->GetLabel(2); | |
977 | } else { | |
978 | labl[i][0]=-1; | |
979 | labl[i][1]=-1; | |
980 | labl[i][2]=-1; | |
981 | } | |
982 | } | |
2755f080 | 983 | |
b8ed1a92 | 984 | CookLabel(otrack,0.); //MI change - to see fake ratio |
985 | ||
986 | Int_t label=FindLabel(labl[0][0],labl[1][0],labl[2][0],labl[3][0],labl[4][0],labl[5][0]); | |
987 | Int_t lflag=0; | |
2755f080 | 988 | for(Int_t i=0;i<otrack->GetNumberOfClusters();i++) |
b8ed1a92 | 989 | if(labl[i][0]==label || labl[i][1]==label || labl[i][2]==label) lflag++; |
990 | ||
2755f080 | 991 | if(lflag<otrack->GetNumberOfClusters()) label = -label; |
b8ed1a92 | 992 | otrack->SetLabel(label); |
993 | ||
994 | //remove clusters of found track | |
995 | for(Int_t nlay=0;nlay<AliITSgeomTGeo::GetNLayers();nlay++){ | |
996 | for(Int_t cln=0;cln<trsa->GetNumberOfMarked(nlay);cln++){ | |
997 | Int_t index = trsa->GetClusterMark(nlay,cln); | |
998 | fCluLayer[nlay]->RemoveAt(index); | |
999 | RemoveClusterCoord(nlay,index); | |
1000 | fCluLayer[nlay]->Compress(); | |
7e5bf5af | 1001 | } |
1002 | } | |
7e5bf5af | 1003 | |
13918578 | 1004 | return otrack; |
1005 | ||
1006 | } | |
1007 | ||
c421499f | 1008 | //_______________________________________________________ |
1009 | void AliITStrackerSA::StoreTrack(AliITStrackV2 *t,AliESDEvent *event) const | |
1010 | { | |
1011 | // | |
1012 | // Add new track to the ESD | |
1013 | // | |
1014 | AliESDtrack outtrack; | |
1015 | outtrack.UpdateTrackParams(t,AliESDtrack::kITSin); | |
1016 | for(Int_t i=0;i<12;i++) { | |
1017 | outtrack.SetITSModuleIndex(i,t->GetModuleIndex(i)); | |
1018 | } | |
1019 | event->AddTrack(&outtrack); | |
1020 | ||
1021 | return; | |
1022 | } | |
bef31448 | 1023 | |
4e05ab9a | 1024 | |
bef31448 | 1025 | //_______________________________________________________ |
7e5bf5af | 1026 | Int_t AliITStrackerSA::SearchClusters(Int_t layer,Double_t phiwindow,Double_t lambdawindow, AliITStrackSA* trs,Double_t /*zvertex*/,Int_t pflag){ |
13918578 | 1027 | //function used to to find the clusters associated to the track |
2755f080 | 1028 | |
1029 | if(AliITSReconstructor::GetRecoParam()->GetLayersToSkip(layer)) return 0; | |
1030 | ||
13918578 | 1031 | Int_t nc=0; |
1032 | AliITSlayer &lay = fgLayers[layer]; | |
7e5bf5af | 1033 | Double_t r=lay.GetR(); |
2755f080 | 1034 | if(pflag==1){ |
cfe729e0 | 1035 | Float_t cx1,cx2,cy1,cy2; |
1036 | FindEquation(fPoint1[0],fPoint1[1],fPoint2[0],fPoint2[1],fPoint3[0],fPoint3[1],fCoef1,fCoef2,fCoef3); | |
1037 | if (FindIntersection(fCoef1,fCoef2,fCoef3,-r*r,cx1,cy1,cx2,cy2)==0) | |
1038 | return 0; | |
1966f03c | 1039 | Double_t fi1=TMath::ATan2(cy1-fPoint1[1],cx1-fPoint1[0]); |
1040 | Double_t fi2=TMath::ATan2(cy2-fPoint1[1],cx2-fPoint1[0]); | |
cfe729e0 | 1041 | fPhiEstimate=ChoosePoint(fi1,fi2,fPhic); |
1042 | } | |
13918578 | 1043 | |
7e5bf5af | 1044 | |
1045 | Int_t ncl = fCluLayer[layer]->GetEntries(); | |
1046 | for (Int_t index=0; index<ncl; index++) { | |
00a7cc50 | 1047 | AliITSRecPoint *c = (AliITSRecPoint*)fCluLayer[layer]->At(index); |
7e5bf5af | 1048 | if (!c) continue; |
1049 | if (c->GetQ()<=0) continue; | |
3733ccd2 | 1050 | if(layer>1 && c->GetQ()<=fMinQ) continue; |
7e5bf5af | 1051 | |
1052 | AliITSclusterTable* arr = (AliITSclusterTable*)GetClusterCoord(layer,index); | |
1053 | Double_t phi = arr->GetPhi(); | |
cfe729e0 | 1054 | if (TMath::Abs(phi-fPhiEstimate)>phiwindow) continue; |
494fda7c | 1055 | |
7e5bf5af | 1056 | Double_t lambda = arr->GetLambda(); |
cfe729e0 | 1057 | if (TMath::Abs(lambda-fLambdac)>lambdawindow) continue; |
1058 | ||
7e5bf5af | 1059 | if(trs->GetNumberOfClustersSA()==trs->GetMaxNumberOfClusters()) return 0; |
1060 | if(trs->GetNumberOfMarked(layer)==trs->GetMaxNMarkedPerLayer()) return 0; | |
1061 | Int_t orind = arr->GetOrInd(); | |
1062 | trs->AddClusterSA(layer,orind); | |
1063 | trs->AddClusterMark(layer,index); | |
1064 | ||
cfe729e0 | 1065 | nc++; |
1066 | fLambdac=lambda; | |
1067 | fPhiEstimate=phi; | |
cfe729e0 | 1068 | |
7e5bf5af | 1069 | fPointc[0]=arr->GetX(); |
1070 | fPointc[1]=arr->GetY(); | |
1071 | ||
cfe729e0 | 1072 | } |
1073 | return nc; | |
1074 | } | |
13918578 | 1075 | |
bef31448 | 1076 | //________________________________________________________________ |
1077 | void AliITStrackerSA::UpdatePoints(){ | |
1078 | //update of points for the estimation of the curvature | |
13918578 | 1079 | |
bef31448 | 1080 | fPoint2[0]=fPoint3[0]; |
1081 | fPoint2[1]=fPoint3[1]; | |
1082 | fPoint3[0]=fPointc[0]; | |
1083 | fPoint3[1]=fPointc[1]; | |
13918578 | 1084 | |
1085 | ||
13918578 | 1086 | } |
13918578 | 1087 | |
13918578 | 1088 | //___________________________________________________________________ |
1089 | 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){ | |
1090 | ||
1091 | //given (x,y) of three recpoints (in global coordinates) | |
1092 | //returns the parameters a,b,c of circonference x*x + y*y +a*x + b*y +c | |
1093 | ||
1094 | Float_t den = (x3-x1)*(y2-y1)-(x2-x1)*(y3-y1); | |
1095 | if(den==0) return 0; | |
1096 | a = ((y3-y1)*(x2*x2+y2*y2-x1*x1-y1*y1)-(y2-y1)*(x3*x3+y3*y3-x1*x1-y1*y1))/den; | |
1097 | b = -(x2*x2-x1*x1+y2*y2-y1*y1+a*(x2-x1))/(y2-y1); | |
1098 | c = -x1*x1-y1*y1-a*x1-b*y1; | |
1099 | return 1; | |
1100 | } | |
1101 | //__________________________________________________________________________ | |
1102 | 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){ | |
1103 | ||
1104 | //Finds the intersection between the circonference of the track and the circonference centered in (0,0) represented by one layer | |
1105 | //c2 is -rlayer*rlayer | |
1106 | ||
1107 | if(a1==0) return 0; | |
3a2f227d | 1108 | Double_t m = c2-c1; |
1109 | Double_t aA = (b1*b1)/(a1*a1)+1; | |
1110 | Double_t bB = (-2*m*b1/(a1*a1)); | |
1111 | Double_t cC = c2+(m*m)/(a1*a1); | |
1112 | Double_t dD = bB*bB-4*aA*cC; | |
1113 | if(dD<0) return 0; | |
13918578 | 1114 | |
3a2f227d | 1115 | y1 = (-bB+TMath::Sqrt(dD))/(2*aA); |
1116 | y2 = (-bB-TMath::Sqrt(dD))/(2*aA); | |
13918578 | 1117 | x1 = (c2-c1-b1*y1)/a1; |
1118 | x2 = (c2-c1-b1*y2)/a1; | |
1119 | ||
1120 | return 1; | |
1121 | } | |
1122 | //____________________________________________________________________ | |
1123 | Double_t AliITStrackerSA::Curvature(Double_t x1,Double_t y1,Double_t | |
1124 | x2,Double_t y2,Double_t x3,Double_t y3){ | |
1125 | ||
1126 | //calculates the curvature of track | |
1127 | Double_t den = (x3-x1)*(y2-y1)-(x2-x1)*(y3-y1); | |
1128 | if(den==0) return 0; | |
1129 | Double_t a = ((y3-y1)*(x2*x2+y2*y2-x1*x1-y1*y1)-(y2-y1)*(x3*x3+y3*y3-x1*x1-y1*y1))/den; | |
1130 | Double_t b = -(x2*x2-x1*x1+y2*y2-y1*y1+a*(x2-x1))/(y2-y1); | |
1131 | Double_t c = -x1*x1-y1*y1-a*x1-b*y1; | |
1132 | Double_t xc=-a/2.; | |
1133 | ||
1134 | if((a*a+b*b-4*c)<0) return 0; | |
1135 | Double_t rad = TMath::Sqrt(a*a+b*b-4*c)/2.; | |
1136 | if(rad==0) return 0; | |
1137 | ||
1138 | if((x1>0 && y1>0 && x1<xc)) rad*=-1; | |
1139 | if((x1<0 && y1>0 && x1<xc)) rad*=-1; | |
1140 | // if((x1<0 && y1<0 && x1<xc)) rad*=-1; | |
1141 | // if((x1>0 && y1<0 && x1<xc)) rad*=-1; | |
1142 | ||
1143 | return 1/rad; | |
1144 | ||
1145 | } | |
7e5bf5af | 1146 | |
1147 | ||
13918578 | 1148 | //____________________________________________________________________ |
1149 | Double_t AliITStrackerSA::ChoosePoint(Double_t p1, Double_t p2, Double_t pp){ | |
1150 | ||
1151 | //Returns the point closest to pp | |
1152 | ||
1153 | Double_t diff1 = p1-pp; | |
1154 | Double_t diff2 = p2-pp; | |
1155 | ||
1156 | if(TMath::Abs(diff1)<TMath::Abs(diff2)) fPhiEstimate=p1; | |
1157 | else fPhiEstimate=p2; | |
1158 | return fPhiEstimate; | |
1159 | ||
1160 | } | |
1161 | ||
1162 | ||
1163 | //_________________________________________________________________ | |
deae0246 | 1164 | Int_t AliITStrackerSA::FindTrackLowChiSquare() const { |
1165 | // returns track with lowest chi square | |
1166 | Int_t dim=fListOfTracks->GetEntries(); | |
1167 | if(dim<=1) return 0; | |
1168 | AliITStrackV2* trk = (AliITStrackV2*)fListOfTracks->At(0); | |
1169 | Double_t minChi2=trk->GetChi2(); | |
1170 | Int_t index=0; | |
1171 | for(Int_t i=1;i<dim;i++){ | |
4adcf390 | 1172 | trk = (AliITStrackV2*)fListOfTracks->At(i); |
deae0246 | 1173 | Double_t chi2=trk->GetChi2(); |
1174 | if(chi2<minChi2){ | |
1175 | minChi2=chi2; | |
1176 | index=i; | |
13918578 | 1177 | } |
13918578 | 1178 | } |
deae0246 | 1179 | return index; |
13918578 | 1180 | } |
1181 | ||
1182 | //__________________________________________________________ | |
2755f080 | 1183 | Int_t AliITStrackerSA::FindLabel(Int_t l0, Int_t l1, Int_t l2, Int_t l3, Int_t l4, Int_t l5){ |
13918578 | 1184 | |
1185 | //function used to determine the track label | |
1186 | ||
2755f080 | 1187 | Int_t lb[6] = {l0,l1,l2,l3,l4,l5}; |
13918578 | 1188 | Int_t aa[6]={1,1,1,1,1,1}; |
1189 | Int_t ff=0; | |
1190 | Int_t ll=0; | |
1191 | Int_t k=0;Int_t w=0;Int_t num=6; | |
8b3779ef | 1192 | for(Int_t i=5;i>=0;i--) if(lb[i]==-1) num=i; |
13918578 | 1193 | |
1194 | while(k<num){ | |
1195 | ||
1196 | for(Int_t i=k+1;i<num;i++){ | |
1197 | ||
1198 | if(lb[k]==lb[i] && aa[k]!=0){ | |
1199 | ||
1200 | aa[k]+=1; | |
1201 | aa[i]=0; | |
1202 | } | |
1203 | } | |
8b3779ef | 1204 | k++; |
13918578 | 1205 | } |
1206 | ||
1207 | while(w<num){ | |
8b3779ef | 1208 | |
13918578 | 1209 | for(Int_t j=0;j<6;j++){ |
1210 | if(aa[w]<aa[j]){ | |
1211 | ff=aa[w]; | |
1212 | aa[w]=aa[j]; | |
1213 | aa[j]=ff; | |
1214 | ll=lb[w]; | |
1215 | lb[w]=lb[j]; | |
1216 | lb[j]=ll; | |
1217 | } | |
1218 | } | |
8b3779ef | 1219 | w++; |
13918578 | 1220 | } |
8b3779ef | 1221 | |
1222 | if(num<1) return -1; | |
1223 | return lb[num-1]; | |
13918578 | 1224 | } |
1225 | ||
1226 | //_____________________________________________________________________________ | |
1227 | 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, | |
2755f080 | 1228 | Int_t gl12, Int_t gl13, Int_t gl14,Int_t gl15, Int_t gl16, Int_t gl17, Int_t gl18, Int_t minNPoints){ |
13918578 | 1229 | |
1230 | ||
1231 | //function used to assign label to the found track. If track is fake, the label is negative | |
1232 | ||
1233 | Int_t lb0[6] = {gl1,gl2,gl3,gl4,gl5,gl6}; | |
1234 | Int_t lb1[6] = {gl7,gl8,gl9,gl10,gl11,gl12}; | |
1235 | Int_t lb2[6] = {gl13,gl14,gl15,gl16,gl17,gl18}; | |
1236 | Int_t ll=FindLabel(lb0[0],lb0[1],lb0[2],lb0[3],lb0[4],lb0[5]); | |
1237 | Int_t lflag=0;Int_t num=6; | |
1238 | if(lb0[5]==-1 && lb1[5]==-1 && lb2[5]==-1) num=5; | |
1239 | ||
1240 | for(Int_t i=0;i<num;i++){ | |
1241 | if(lb0[i]==ll || lb1[i]==ll || lb2[i]==ll) lflag+=1; | |
1242 | } | |
1243 | ||
2755f080 | 1244 | if(lflag>=minNPoints) return ll; |
13918578 | 1245 | else return -ll; |
1246 | ||
1247 | ||
1248 | } | |
13918578 | 1249 | //_____________________________________________________________________________ |
5b4dedce | 1250 | void AliITStrackerSA::SetCalculatedWindowSizes(Int_t n, Float_t phimin, Float_t phimax, Float_t lambdamin, Float_t lambdamax){ |
1251 | // Set sizes of the phi and lambda windows used for track finding | |
1252 | fNloop = n; | |
1253 | if(fPhiWin) delete [] fPhiWin; | |
1254 | if(fLambdaWin) delete [] fLambdaWin; | |
1255 | fPhiWin = new Double_t[fNloop]; | |
1256 | fLambdaWin = new Double_t[fNloop]; | |
1257 | Float_t stepPhi=(phimax-phimin)/(Float_t)(fNloop-1); | |
1258 | Float_t stepLambda=(lambdamax-lambdamin)/(Float_t)(fNloop-1); | |
1259 | for(Int_t k=0;k<fNloop;k++){ | |
1260 | Float_t phi=phimin+k*stepPhi; | |
1261 | Float_t lam=lambdamin+k*stepLambda; | |
1262 | fPhiWin[k]=phi; | |
1263 | fLambdaWin[k]=lam; | |
1264 | } | |
1265 | } | |
1266 | //_____________________________________________________________________________ | |
1267 | void AliITStrackerSA::SetFixedWindowSizes(Int_t n, Double_t *phi, Double_t *lam){ | |
13918578 | 1268 | // Set sizes of the phi and lambda windows used for track finding |
1269 | fNloop = n; | |
1270 | if(phi){ // user defined values | |
1271 | fPhiWin = new Double_t[fNloop]; | |
1272 | fLambdaWin = new Double_t[fNloop]; | |
1273 | for(Int_t k=0;k<fNloop;k++){ | |
1274 | fPhiWin[k]=phi[k]; | |
1275 | fLambdaWin[k]=lam[k]; | |
1276 | } | |
1277 | } | |
1278 | else { // default values | |
627b6db6 | 1279 | |
1280 | Double_t phid[33] = {0.002,0.003,0.004,0.0045,0.0047, | |
bef31448 | 1281 | 0.005,0.0053,0.0055, |
1282 | 0.006,0.0063,0.0065,0.007,0.0073,0.0075,0.0077, | |
1283 | 0.008,0.0083,0.0085,0.0087,0.009,0.0095,0.0097, | |
627b6db6 | 1284 | 0.01,0.0105,0.011,0.0115,0.012,0.0125,0.013,0.0135,0.0140,0.0145}; |
1285 | Double_t lambdad[33] = {0.003,0.004,0.005,0.005,0.005, | |
1286 | 0.005,0.005,0.006, | |
1287 | 0.006,0.006,0.006,0.007,0.007,0.007,0.007, | |
1288 | 0.007,0.007,0.007,0.007,0.007,0.007,0.007, | |
1289 | 0.008,0.008,0.008,0.008,0.008,0.008,0.008,0.008,0.008,0.008}; | |
bef31448 | 1290 | |
627b6db6 | 1291 | if(fNloop!=33){ |
1292 | fNloop = 33; | |
13918578 | 1293 | } |
627b6db6 | 1294 | |
1295 | ||
13918578 | 1296 | fPhiWin = new Double_t[fNloop]; |
1297 | fLambdaWin = new Double_t[fNloop]; | |
e340bb86 | 1298 | |
e340bb86 | 1299 | Double_t factor=AliITSReconstructor::GetRecoParam()->GetFactorSAWindowSizes(); // possibility to enlarge windows for cosmics reco with large misalignments (A.Dainese) |
2755f080 | 1300 | |
1301 | for(Int_t k=0;k<fNloop;k++){ | |
e340bb86 | 1302 | fPhiWin[k]=phid[k]*factor; |
1303 | fLambdaWin[k]=lambdad[k]*factor; | |
13918578 | 1304 | } |
1305 | ||
1306 | } | |
1307 | ||
1308 | } | |
7e5bf5af | 1309 | //_______________________________________________________________________ |
cc088660 | 1310 | void AliITStrackerSA::GetCoorAngles(AliITSRecPoint* cl,Double_t &phi,Double_t &lambda, Float_t &x, Float_t &y,Float_t &z,Double_t* vertex){ |
7e5bf5af | 1311 | //Returns values of phi (azimuthal) and lambda angles for a given cluster |
cc088660 | 1312 | /* |
7e5bf5af | 1313 | Double_t rot[9]; fGeom->GetRotMatrix(module,rot); |
1314 | Int_t lay,lad,det; fGeom->GetModuleId(module,lay,lad,det); | |
1315 | Float_t tx,ty,tz; fGeom->GetTrans(lay,lad,det,tx,ty,tz); | |
1316 | ||
1317 | Double_t alpha=TMath::ATan2(rot[1],rot[0])+TMath::Pi(); | |
1318 | Double_t phi1=TMath::Pi()/2+alpha; | |
1319 | if (lay==1) phi1+=TMath::Pi(); | |
1320 | ||
1321 | Float_t cp=TMath::Cos(phi1), sp=TMath::Sin(phi1); | |
1322 | Float_t r=tx*cp+ty*sp; | |
1323 | ||
cc088660 | 1324 | xyz= r*cp - cl->GetY()*sp; |
7e5bf5af | 1325 | y= r*sp + cl->GetY()*cp; |
1326 | z=cl->GetZ(); | |
cc088660 | 1327 | */ |
1328 | Float_t xyz[3]; | |
1329 | cl->GetGlobalXYZ(xyz); | |
1330 | x=xyz[0]; | |
1331 | y=xyz[1]; | |
1332 | z=xyz[2]; | |
1333 | ||
1966f03c | 1334 | phi=TMath::ATan2(y-vertex[1],x-vertex[0]); |
7e5bf5af | 1335 | lambda=TMath::ATan2(z-vertex[2],TMath::Sqrt((x-vertex[0])*(x-vertex[0])+(y-vertex[1])*(y-vertex[1]))); |
1336 | } | |
13918578 | 1337 | |
7e5bf5af | 1338 | //________________________________________________________________________ |
cc088660 | 1339 | void AliITStrackerSA::GetCoorErrors(AliITSRecPoint* cl,Float_t &sx,Float_t &sy, Float_t &sz){ |
7e5bf5af | 1340 | |
cc088660 | 1341 | //returns sigmax, y, z of cluster in global coordinates |
1342 | /* | |
7e5bf5af | 1343 | Double_t rot[9]; fGeom->GetRotMatrix(module,rot); |
cc088660 | 1344 | Int_t lay,lad,det; |
1345 | AliITSgeomTGeo::GetModuleId(module,lay,lad,det); | |
7e5bf5af | 1346 | |
1347 | Double_t alpha=TMath::ATan2(rot[1],rot[0])+TMath::Pi(); | |
1348 | Double_t phi=TMath::Pi()/2+alpha; | |
1349 | if (lay==1) phi+=TMath::Pi(); | |
1350 | ||
1351 | Float_t cp=TMath::Cos(phi), sp=TMath::Sin(phi); | |
cc088660 | 1352 | */ |
1353 | Float_t covm[6]; | |
1354 | cl->GetGlobalCov(covm); | |
1355 | sx=TMath::Sqrt(covm[0]); | |
1356 | sy=TMath::Sqrt(covm[3]); | |
1357 | sz=TMath::Sqrt(covm[5]); | |
1358 | /* | |
7e5bf5af | 1359 | sx = TMath::Sqrt(sp*sp*cl->GetSigmaY2()); |
1360 | sy = TMath::Sqrt(cp*cp*cl->GetSigmaY2()); | |
1361 | sz = TMath::Sqrt(cl->GetSigmaZ2()); | |
cc088660 | 1362 | */ |
7e5bf5af | 1363 | } |