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f27a7e81 1/**************************************************************************
2 * Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
16/////////////////////////////////////////////////////////////
17//
18// AliAnalysisTask to extract from ESD tracks the AliTrackPointArrays
19// with ITS points for selected tracks. This are the input data for alignment
20//
367c6d1f 21// Author: A.Dainese, andrea.dainese@pd.infn.it
f27a7e81 22/////////////////////////////////////////////////////////////
23
24#include <TTree.h>
25#include <TChain.h>
26#include <TNtuple.h>
27#include <TList.h>
28#include <TH1F.h>
29#include <TH2F.h>
cf53e6db 30#include <TMap.h>
f27a7e81 31#include <TVector3.h>
32#include <TGeoManager.h>
33
34#include "AliLog.h"
35#include "AliGeomManager.h"
a043746c 36#include "AliITSReconstructor.h"
f27a7e81 37#include "AliITSgeomTGeo.h"
38#include "AliTrackPointArray.h"
39#include "AliESDInputHandler.h"
40#include "AliESDVertex.h"
41#include "AliESDtrack.h"
42#include "AliESDEvent.h"
43#include "AliESDfriend.h"
44#include "AliAnalysisTask.h"
45#include "AliAnalysisManager.h"
46#include "AliAlignmentDataFilterITS.h"
47
48
49ClassImp(AliAlignmentDataFilterITS)
50
51
52//________________________________________________________________________
53AliAlignmentDataFilterITS::AliAlignmentDataFilterITS(const char *name):
54AliAnalysisTask(name,"task"),
367c6d1f 55fOnlySPDFO(kFALSE),
56fGeometryFileName("geometry.root"),
57fITSRecoParam(0),
f27a7e81 58fESD(0),
59fESDfriend(0),
60fListOfHistos(0),
61fspTree(0),
480207c6 62fHistNevents(0),
f27a7e81 63fHistNpoints(0),
64fHistPt(0),
65fHistLayer0(0),
66fHistLayer1(0),
67fHistLayer2(0),
68fHistLayer3(0),
69fHistLayer4(0),
70fHistLayer5(0),
71fntExtra(0),
72fntCosmicMatching(0)
73{
74 // Constructor
75
76 // Define input and output slots here
77 // Input slot #0 works with a TChain
78 DefineInput(0, TChain::Class());
79 // Output slot #0 writes into a TTree
80 DefineOutput(0,TTree::Class()); //My private output
81 // Output slot #1 writes into a TList
82 DefineOutput(1,TList::Class()); //My private output
83}
84
85//________________________________________________________________________
86AliAlignmentDataFilterITS::~AliAlignmentDataFilterITS()
87{
88 // Destructor
89 if (fListOfHistos) {
90 delete fListOfHistos;
91 fListOfHistos = 0;
92 }
93 if (fspTree) {
94 delete fspTree;
95 fspTree = 0;
96 }
480207c6 97 if (fHistNevents) {
98 delete fHistNevents;
99 fHistNevents = 0;
100 }
a043746c 101 if (fHistNpoints) {
102 delete fHistNpoints;
103 fHistNpoints = 0;
104 }
f27a7e81 105 if (fHistPt) {
106 delete fHistPt;
107 fHistPt = 0;
108 }
109 if (fHistLayer0) {
110 delete fHistLayer0;
111 fHistLayer0 = 0;
112 }
113 if (fHistLayer1) {
114 delete fHistLayer1;
115 fHistLayer1 = 0;
116 }
117 if (fHistLayer2) {
118 delete fHistLayer2;
119 fHistLayer2 = 0;
120 }
121 if (fHistLayer3) {
122 delete fHistLayer3;
123 fHistLayer3 = 0;
124 }
125 if (fHistLayer4) {
126 delete fHistLayer4;
127 fHistLayer4 = 0;
128 }
129 if (fHistLayer5) {
130 delete fHistLayer5;
131 fHistLayer5 = 0;
132 }
133 if (fntExtra) {
134 delete fntExtra;
135 fntExtra = 0;
136 }
137 if (fntCosmicMatching) {
138 delete fntCosmicMatching;
139 fntCosmicMatching = 0;
140 }
141}
a043746c 142
f27a7e81 143//________________________________________________________________________
144void AliAlignmentDataFilterITS::ConnectInputData(Option_t *)
145{
146 // Connect ESD
147 // Called once
148
149 TTree* tree = dynamic_cast<TTree*> (GetInputData(0));
150 if(!tree) {
151 printf("ERROR: Could not read chain from input slot 0\n");
152 } else {
cf53e6db 153 // Get the OCDB path and the list of OCDB objects used for reco
154 TMap *cdbMap = (TMap*)(tree->GetTree()->GetUserInfo())->FindObject("cdbMap");
155 TList *cdbList = (TList*)(tree->GetTree()->GetUserInfo())->FindObject("cdbList");
156
157 //cdbList->Print();
158 // write the list to the user info of the output tree
159 if(!fspTree) {
160 printf("ERROR: fspTree does not exist\n");
161 } else {
162 TMap *cdbMapCopy = new TMap(cdbMap->GetEntries());
163 cdbMapCopy->SetOwner(1);
164 cdbMapCopy->SetName("cdbMap");
165 TIter iter1(cdbMap->GetTable());
166
167 TPair* pair = 0;
168 while((pair = dynamic_cast<TPair*> (iter1.Next()))){
169 TObjString* keyStr = dynamic_cast<TObjString*> (pair->Key());
170 TObjString* valStr = dynamic_cast<TObjString*> (pair->Value());
171 cdbMapCopy->Add(new TObjString(keyStr->GetName()), new TObjString(valStr->GetName()));
172 }
173
174 TList *cdbListCopy = new TList();
175 cdbListCopy->SetOwner(1);
176 cdbListCopy->SetName("cdbList");
177
178 TIter iter2(cdbList);
179
180 TObjString* cdbEntry=0;
181 while((cdbEntry =(TObjString*)(iter2.Next()))) {
182 cdbListCopy->Add(new TObjString(*cdbEntry));
183 }
184 cdbListCopy->Print();
185
186
187 fspTree->GetUserInfo()->Add(cdbMapCopy);
188 fspTree->GetUserInfo()->Add(cdbListCopy);
189 }
f27a7e81 190
cf53e6db 191 // Disable all branches and enable only the needed ones
f27a7e81 192 tree->SetBranchStatus("fTriggerMask", 1);
193 tree->SetBranchStatus("fSPDVertex*", 1);
f27a7e81 194 tree->SetBranchStatus("ESDfriend*", 1);
195 tree->SetBranchAddress("ESDfriend.",&fESDfriend);
f27a7e81 196 tree->SetBranchStatus("fSPDMult*", 1);
197
198 AliESDInputHandler *esdH = dynamic_cast<AliESDInputHandler*> (AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler());
199
200 if(!esdH) {
201 printf("ERROR: Could not get ESDInputHandler\n");
202 } else {
203 fESD = esdH->GetEvent();
204 }
205 }
206
207 return;
208}
209
210//________________________________________________________________________
211void AliAlignmentDataFilterITS::Init()
212{
213 // Initialization
214
215 return;
216}
217
218//________________________________________________________________________
219void AliAlignmentDataFilterITS::CreateOutputObjects()
220{
221 // Create the output container
222 //
c1605e49 223
224 // load the geometry
225 if(!gGeoManager) {
226 printf("AliAlignmentDataFilterITS::CreateOutputObjects(): loading geometry from %s\n",fGeometryFileName.Data());
227 AliGeomManager::LoadGeometry(fGeometryFileName.Data());
228 if(!gGeoManager) {
229 printf("AliAlignmentDataFilterITS::CreateOutputObjects(): no geometry loaded \n");
230 return;
231 }
232 }
f27a7e81 233
234 // Several histograms are more conveniently managed in a TList
235 fListOfHistos = new TList();
236 fListOfHistos->SetOwner();
a043746c 237
480207c6 238 fHistNevents = new TH1F("fHistNevents", "Number of processed events; N events; bin",5,-0.5,4.5);
239 fHistNevents->Sumw2();
240 fHistNevents->SetMinimum(0);
241 fListOfHistos->Add(fHistNevents);
f27a7e81 242
243 fHistNpoints = new TH1F("fHistNpoints", "Number of AliTrackPoints per track; N points; tracks",25,-0.5,24.5);
244 fHistNpoints->Sumw2();
245 fHistNpoints->SetMinimum(0);
246 fListOfHistos->Add(fHistNpoints);
247
248 fHistPt = new TH1F("fHistPt", "p_{t} of tracks; p_{t} [GeV/c]; tracks",100,0,50);
249 fHistPt->Sumw2();
250 fHistPt->SetMinimum(0);
251 fListOfHistos->Add(fHistPt);
252
253
254 Float_t zmax=14.;
255 Int_t nbinsphi=20,nbinsz=4;
256 fHistLayer0 = new TH2F("fHistLayer0","Points in layer inner SPD; global #phi; global z [cm]",nbinsphi,-3.14,3.14,nbinsz,-zmax,zmax);
257 fListOfHistos->Add(fHistLayer0);
258 zmax=14.;
259 nbinsphi=40;nbinsz=4;
260 fHistLayer1 = new TH2F("fHistLayer1","Points in layer outer SPD; global #phi; global z [cm]",nbinsphi,-3.14,3.14,nbinsz,-zmax,zmax);
261 fListOfHistos->Add(fHistLayer1);
262 zmax=22.;
263 nbinsphi=14;nbinsz=6;
264 fHistLayer2 = new TH2F("fHistLayer2","Points in layer inner SDD; global #phi; global z [cm]",nbinsphi,-3.14,3.14,nbinsz,-zmax,zmax);
265 fListOfHistos->Add(fHistLayer2);
266 zmax=29.5;
267 nbinsphi=22;nbinsz=8;
268 fHistLayer3 = new TH2F("fHistLayer3","Points in layer outer SDD; global #phi; global z [cm]",nbinsphi,-3.14,3.14,nbinsz,-zmax,zmax);
269 fListOfHistos->Add(fHistLayer3);
270 zmax=45.;
271 nbinsphi=34;nbinsz=23;
272 fHistLayer4 = new TH2F("fHistLayer4","Points in layer inner SSD; global #phi; global z [cm]",nbinsphi,-3.14,3.14,nbinsz,-zmax,zmax);
273 fListOfHistos->Add(fHistLayer4);
274 zmax=51.;
275 nbinsphi=38;nbinsz=26;
276 fHistLayer5 = new TH2F("fHistLayer5","Points in layer outer SSD; global #phi; global z [cm]",nbinsphi,-3.14,3.14,nbinsz,-zmax,zmax);
277 fListOfHistos->Add(fHistLayer5);
278
279
280 fntExtra = new TNtuple("fntExtra","extra clusters in ITS","ncls:layer:ladder:volid:phi:x:y:z:xloc:zloc:dxy:dz:d0mu:z0mu");
281 fListOfHistos->Add(fntExtra);
282
283 fntCosmicMatching = new TNtuple("fntCosmicMatching","cosmic tracks matching in ITS","ncls1:ncls2:pt1:pt2:sigmad01:sigmad02:sigmaz01:sigmaz02:dxy:dz:phimu:thetamu:d0mu:z0mu");
284 fListOfHistos->Add(fntCosmicMatching);
285
3acc122a 286 fspTree = new TTree("spTree","Tree with ITS track points");
f27a7e81 287 const AliTrackPointArray *array = 0;
ab6c74ff 288 Float_t curv,curverr,runNumber;
289 const TObjString *itsaligndata = 0;
f27a7e81 290 fspTree->Branch("SP","AliTrackPointArray",&array);
291 fspTree->Branch("curv",&curv);
292 fspTree->Branch("curverr",&curverr);
ab6c74ff 293 fspTree->Branch("run",&runNumber);
294 fspTree->Branch("ITSAlignData",&itsaligndata);
295
f27a7e81 296
297 return;
298}
299
300//________________________________________________________________________
301void AliAlignmentDataFilterITS::Exec(Option_t */*option*/)
302{
303 // Execute analysis for current event:
304 // write ITS AliTrackPoints for selected tracks to fspTree
a043746c 305
c1605e49 306 // check the geometry
307 if(!gGeoManager) {
308 printf("AliAlignmentDataFilterITS::Exec(): no geometry loaded \n");
309 return;
367c6d1f 310 }
311
312 // check if we have AliITSRecoParam
a043746c 313 if(!GetRecoParam()) {
367c6d1f 314 if(!fITSRecoParam) {
315 printf("AliAlignmentDataFilterITS::Exec(): no AliITSRecoParam\n");
316 return;
317 }
f27a7e81 318 }
319
a043746c 320
f27a7e81 321 if(!fESD) {
322 printf("AliAlignmentDataFilterITS::Exec(): no ESD \n");
323 return;
324 }
325 if(!fESDfriend) {
326 printf("AliAlignmentDataFilterITS::Exec(): no ESDfriend \n");
327 return;
328 }
329 // attach ESDfriend
330 fESD->SetESDfriend(fESDfriend);
331
480207c6 332 // Post the data for slot 0
333 fHistNevents->Fill(0);
334
cf53e6db 335
336 // write field value to spTree UserInfo
337 if(!((fspTree->GetUserInfo())->FindObject("BzkGauss"))) {
338 Double_t bz=fESD->GetMagneticField();
339 TString bzString; bzString+=bz;
340 TObjString *bzObjString = new TObjString(bzString);
341 TList *bzList = new TList();
342 bzList->SetOwner(1);
343 bzList->SetName("BzkGauss");
344 bzList->Add(bzObjString);
345 fspTree->GetUserInfo()->Add(bzList);
346 }
347
348
f27a7e81 349 // Process event as Cosmic or Collision
350 //if(esd->GetEventType()== ???? ) {
351 printf("AliAlignmentDataFilterITS::Exec(): MOVE ASAP TO esd->GetEventType() !\n");
367c6d1f 352 if(GetRecoParam()->GetAlignFilterCosmics()) {
f27a7e81 353 FilterCosmic(fESD);
354 } else {
355 FilterCollision(fESD);
356 }
357
480207c6 358 PostData(1,fListOfHistos);
359
f27a7e81 360 return;
361}
362
363//________________________________________________________________________
364void AliAlignmentDataFilterITS::FilterCosmic(const AliESDEvent *esd)
365{
366 // Extract ITS AliTrackPoints for Cosmics (check angular matching
367 // of top and bottom track, merge the two tracks, if requested)
368 //
369
370 // Set branch addresses for space points tree
371 AliTrackPointArray *arrayForTree=0;
ab6c74ff 372 Float_t curv,curverr,runNumber;
373 TObjString *itsaligndata=0;
f27a7e81 374 fspTree->SetBranchAddress("SP",&arrayForTree);
375 fspTree->SetBranchAddress("curv",&curv);
376 fspTree->SetBranchAddress("curverr",&curverr);
ab6c74ff 377 fspTree->SetBranchAddress("run",&runNumber);
378 fspTree->SetBranchAddress("ITSAlignData",&itsaligndata);
379
380
381 runNumber = (Float_t)esd->GetRunNumber();
382
383 TTree* esdTree = dynamic_cast<TTree*> (GetInputData(0));
384 // Get the list of OCDB objects used for reco
385 TList *cdbList = (TList*)(esdTree->GetTree()->GetUserInfo())->FindObject("cdbList");
386 TIter iter2(cdbList);
387 TObjString* cdbEntry=0;
388 TString cdbEntryString;
389 while((cdbEntry =(TObjString*)(iter2.Next()))) {
390 cdbEntryString = cdbEntry->GetString();
391 if(cdbEntryString.Contains("ITS/Align/Data"))
392 itsaligndata = new TObjString(*cdbEntry);
393 }
394
f27a7e81 395
367c6d1f 396 TString triggeredClass = fESD->GetFiredTriggerClasses();
397 if(fOnlySPDFO && !triggeredClass.Contains("C0SCO-ABCE-NOPF-CENT")) return;
398
f27a7e81 399
400 Int_t ntracks = esd->GetNumberOfTracks();
401 if(ntracks<2) return;
402
403 if(esd->GetPrimaryVertexSPD()->GetNContributors()<0) return;
404
405 Double_t vtxpos[3]; esd->GetPrimaryVertexSPD()->GetXYZ(vtxpos);
406
407 Int_t *goodtracksArray = new Int_t[ntracks];
408 Float_t *phiArray = new Float_t[ntracks];
409 Float_t *thetaArray = new Float_t[ntracks];
410 Int_t *nclsArray = new Int_t[ntracks];
411 Int_t ngt=0;
412 Int_t itrack=0;
413 for (itrack=0; itrack < ntracks; itrack++) {
414 AliESDtrack *track = esd->GetTrack(itrack);
415 if (!track) continue;
416
417
367c6d1f 418 if(track->GetNcls(0)<GetRecoParam()->GetAlignFilterMinITSPoints()) continue;
f27a7e81 419
a043746c 420 if((GetRecoParam()->GetAlignFilterOnlyITSSATracks()) && track->GetNcls(1)>0) continue;
421 if((GetRecoParam()->GetAlignFilterOnlyITSTPCTracks()) && track->GetNcls(1)==0) continue;
f27a7e81 422
423 Float_t phi = track->GetAlpha()+TMath::ASin(track->GetSnp());
424 Float_t theta = 0.5*TMath::Pi()-TMath::ATan(track->GetTgl());
425
367c6d1f 426 if(track->Pt()<GetRecoParam()->GetAlignFilterMinPt() ||
427 track->Pt()>GetRecoParam()->GetAlignFilterMaxPt()) continue;
f27a7e81 428
429 goodtracksArray[ngt] = itrack;
430 phiArray[ngt] = phi;
431 thetaArray[ngt] = theta;
432 nclsArray[ngt] = track->GetNcls(0);
433 ngt++;
434 }
435
436 if(ngt<2) {
437 delete [] goodtracksArray; goodtracksArray=0;
438 delete [] phiArray; phiArray=0;
439 delete [] thetaArray; thetaArray=0;
440 delete [] nclsArray; nclsArray=0;
441 return;
442 }
443
444 // check matching of the two tracks from the muon
445 Float_t min = 10000000.;
446 Int_t maxCls = 0;
447 Int_t good1 = -1, good2 = -1;
448 for(Int_t itr1=0; itr1<ngt-1; itr1++) {
449 for(Int_t itr2=itr1+1; itr2<ngt; itr2++) {
450 Float_t deltatheta = TMath::Abs(TMath::Pi()-thetaArray[itr1]-thetaArray[itr2]);
367c6d1f 451 if(deltatheta>GetRecoParam()->GetAlignFilterMaxMatchingAngle()) continue;
f27a7e81 452 Float_t deltaphi = TMath::Abs(TMath::Abs(phiArray[itr1]-phiArray[itr2])-TMath::Pi());
367c6d1f 453 if(deltaphi>GetRecoParam()->GetAlignFilterMaxMatchingAngle()) continue;
f27a7e81 454 if(nclsArray[itr1]+nclsArray[itr2] > maxCls) {
455 maxCls = nclsArray[itr1]+nclsArray[itr2];
456 min = deltatheta+deltaphi;
457 good1 = goodtracksArray[itr1];
458 good2 = goodtracksArray[itr2];
459 } else if(nclsArray[itr1]+nclsArray[itr2] == maxCls) {
460 if(deltatheta+deltaphi < min) {
461 min = deltatheta+deltaphi;
462 good1 = goodtracksArray[itr1];
463 good2 = goodtracksArray[itr2];
464 }
465 }
466 }
467 }
468
469 delete [] goodtracksArray; goodtracksArray=0;
470 delete [] phiArray; phiArray=0;
471 delete [] thetaArray; thetaArray=0;
472 delete [] nclsArray; nclsArray=0;
473
474 if(good1<0) return;
475 AliDebug(2,"ok track matching");
476
477 // track1 will be the inward track (top)
478 // track2 the outward (bottom)
479 AliESDtrack *track1=0;
480 AliESDtrack *track2=0;
481 AliESDtrack *track = esd->GetTrack(good1);
482 if(track->Py()>0) {
483 track1 = esd->GetTrack(good1);
484 track2 = esd->GetTrack(good2);
485 } else {
486 track1 = esd->GetTrack(good2);
487 track2 = esd->GetTrack(good1);
488 }
489
490 AliTrackPoint point;
491 const AliTrackPointArray *array=0;
492 Int_t ipt,volId,modId,layerId,lay,lad,det;
493 Int_t jpt=0;
494 Bool_t layerOK[6][2];
495 Int_t nclsTrk[2]={0,0};
496
497 for(Int_t l1=0;l1<6;l1++) for(Int_t l2=0;l2<2;l2++) layerOK[l1][l2]=kFALSE;
498
499 for(itrack=0; itrack<2; itrack++) {
500 if(itrack==0) {
501 track = track1;
502 } else {
503 track = track2;
504 }
505 array = track->GetTrackPointArray();
506 if(!array) {
507 AliWarning("No tracks points avaialble");
508 continue;
509 }
510 for(ipt=0; ipt<array->GetNPoints(); ipt++) {
511 array->GetPoint(point,ipt);
512 volId = point.GetVolumeID();
513 layerId = AliGeomManager::VolUIDToLayer(volId,modId);
514 AliDebug(2,Form("%d %d\n",ipt,layerId-1));
515 if(point.IsExtra() &&
a043746c 516 (GetRecoParam()->GetAlignFilterSkipExtra())) continue;
f27a7e81 517 if(layerId>6) continue;
367c6d1f 518 if(!GetRecoParam()->GetAlignFilterUseLayer(layerId-1)) continue;
f27a7e81 519 // check minAngleWrtITSModulePlanes
520 Double_t p[3]; track->GetDirection(p);
521 TVector3 pvec(p[0],p[1],p[2]);
522 Double_t rot[9]; AliGeomManager::GetOrigRotation(volId,rot);
523 TVector3 normvec(rot[1],rot[4],rot[7]);
524 Double_t angle = pvec.Angle(normvec);
525 if(angle>0.5*TMath::Pi()) angle = TMath::Pi()-angle;
526 angle = 0.5*TMath::Pi()-angle;
367c6d1f 527 if(angle<GetRecoParam()->GetAlignFilterMinAngleWrtModulePlanes()) continue;
f27a7e81 528 layerOK[layerId-1][itrack]=kTRUE;
529 jpt++;
530 nclsTrk[itrack]++;
531 }
532 }
533 AliDebug(2,Form("nClsTrk1 %d nClsTrk2 %d\n",nclsTrk[0],nclsTrk[1]));
534
535 // read ITS cluster maps
536 Int_t map1[6],map2[6];
537 for(Int_t ilay=0;ilay<6;ilay++) {
538 map1[ilay]=0; map2[ilay]=0;
539 if(track1->HasPointOnITSLayer(ilay)) map1[ilay]=1;
540 if(track2->HasPointOnITSLayer(ilay)) map2[ilay]=1;
541 }
542 AliDebug(2,Form("ITS map 1: %d %d %d %d %d %d pt %f\n",map1[0],map1[1],map1[2],map1[3],map1[4],map1[5],track1->Pt()));
543 AliDebug(2,Form("ITS map 2: %d %d %d %d %d %d pt %f\n",map2[0],map2[1],map2[2],map2[3],map2[4],map2[5],track2->Pt()));
544 Int_t idx1[12],idx2[12];
545 track1->GetITSclusters(idx1);
546 track2->GetITSclusters(idx2);
547 AliDebug(2,Form("cls idx 1 %d %d %d %d %d %d %d %d %d %d %d %d\n",idx1[0],idx1[1],idx1[2],idx1[3],idx1[4],idx1[5],idx1[6],idx1[7],idx1[8],idx1[9],idx1[10],idx1[11]));
548 AliDebug(2,Form("cls idx 2 %d %d %d %d %d %d %d %d %d %d %d %d\n",idx2[0],idx2[1],idx2[2],idx2[3],idx2[4],idx2[5],idx2[6],idx2[7],idx2[8],idx2[9],idx2[10],idx2[11]));
549
550
367c6d1f 551 if(jpt<GetRecoParam()->GetAlignFilterMinITSPointsMerged()) return;
f27a7e81 552 AliDebug(2,Form(" Total points %d, accepted\n",jpt));
553 fHistNpoints->Fill(jpt);
554 fHistPt->Fill(0.5*(track1->Pt()+track2->Pt()));
555
556 Float_t d0z0mu[2];
557 track1->GetDZ(0,0,0,esd->GetMagneticField(),d0z0mu);
558 //printf("d0mu %f z0mu %f\n",d0z0mu[0],d0z0mu[1]);
559
560 Float_t dzOverlap[2];
561 Float_t curvArray[2],curverrArray[2];
562 Double_t globExtra[3],locExtra[3];
367c6d1f 563 if(GetRecoParam()->GetAlignFilterCosmicMergeTracks())
f27a7e81 564 arrayForTree = new AliTrackPointArray(jpt);
565
566 jpt=0;
567 for(itrack=0; itrack<2; itrack++) {
568 if(itrack==0) {
569 track = track1;
570 } else {
571 track = track2;
572 }
573 curvArray[itrack] = track->GetC(esd->GetMagneticField());
574 curverrArray[itrack] = TMath::Sqrt(track->GetSigma1Pt2())*track->GetC(esd->GetMagneticField())/track->OneOverPt();
575
a043746c 576 if(!(GetRecoParam()->GetAlignFilterCosmicMergeTracks())) {
f27a7e81 577 jpt=0;
578 arrayForTree = new AliTrackPointArray(nclsTrk[itrack]);
579 }
580 array = track->GetTrackPointArray();
581 for(ipt=0; ipt<array->GetNPoints(); ipt++) {
582 array->GetPoint(point,ipt);
583 volId = point.GetVolumeID();
584 layerId = AliGeomManager::VolUIDToLayer(volId,modId);
585 if(layerId>6 || !layerOK[layerId-1][itrack]) continue;
586 arrayForTree->AddPoint(jpt,&point);
587 jpt++;
588 switch(layerId) {
589 case 1:
590 fHistLayer0->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
591 break;
592 case 2:
593 fHistLayer1->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
594 break;
595 case 3:
596 fHistLayer2->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
597 break;
598 case 4:
599 fHistLayer3->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
600 break;
601 case 5:
602 fHistLayer4->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
603 break;
604 case 6:
605 fHistLayer5->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
606 break;
607 }
608 // Post the data for slot 0
609 if(jpt==1) PostData(1,fListOfHistos); // only if this is the first points
610 if(!point.IsExtra() ||
a043746c 611 !(GetRecoParam()->GetAlignFilterFillQANtuples())) continue;
f27a7e81 612 nclsTrk[itrack]--;
613 for(Int_t ll=1;ll<layerId;ll++) modId+=AliITSgeomTGeo::GetNLadders(ll)*AliITSgeomTGeo::GetNDetectors(ll);
614 AliITSgeomTGeo::GetModuleId(modId,lay,lad,det);
615 globExtra[0]=point.GetX();
616 globExtra[1]=point.GetY();
617 globExtra[2]=point.GetZ();
618 AliITSgeomTGeo::GlobalToLocal(lay,lad,det,globExtra,locExtra);
619 //printf("%d %d %d %d %d %f %f %f\n",volId,modId,lay,lad,det,locExtra[0],locExtra[1],locExtra[2]);
620 track->GetDZ(point.GetX(),point.GetY(),point.GetZ(),esd->GetMagneticField(),dzOverlap);
621 AliTrackPoint pointT;
622 Float_t radius,radiusT,phiv,phivT,thetav,thetavT;
623 for(Int_t lll=0;lll<ipt;lll++) {
624 array->GetPoint(pointT,lll);
625 Int_t layerIdT = AliGeomManager::VolUIDToLayer(pointT.GetVolumeID(),modId);
626 if(layerIdT!=layerId) continue;
627 radius=TMath::Sqrt((point.GetX()-vtxpos[0])*(point.GetX()-vtxpos[0])+(point.GetY()-vtxpos[1])*(point.GetY()-vtxpos[1]));
628 radiusT=TMath::Sqrt((pointT.GetX()-vtxpos[0])*(pointT.GetX()-vtxpos[0])+(pointT.GetY()-vtxpos[1])*(pointT.GetY()-vtxpos[1]));
629 phiv=TMath::ATan2(point.GetY()-vtxpos[1],point.GetX()-vtxpos[0]);
630 phivT=TMath::ATan2(pointT.GetY()-vtxpos[1],pointT.GetX()-vtxpos[0]);
631 if(TMath::Abs(point.GetZ()-vtxpos[2])<0.00001 || TMath::Abs(pointT.GetZ()-vtxpos[2])<0.00001) continue;
632 thetav=TMath::ATan(radius/(point.GetZ()-vtxpos[2]));
633 thetavT=TMath::ATan(radiusT/(pointT.GetZ()-vtxpos[2]));
634 dzOverlap[0]=(Float_t)((phivT-phiv)*0.5*(radiusT+radius));
635 if(TMath::Abs(TMath::Tan(0.5*(thetav+thetavT)))<0.00001) continue;
636 dzOverlap[1]=(Float_t)((pointT.GetZ()-point.GetZ())-(radiusT-radius)/TMath::Tan(0.5*(thetav+thetavT)));
637 fntExtra->Fill((Float_t)nclsTrk[itrack],(Float_t)(layerId-1),lad,volId,TMath::ATan2(point.GetY(),point.GetX()),point.GetX(),point.GetY(),point.GetZ(),locExtra[0],locExtra[2],dzOverlap[0],dzOverlap[1],d0z0mu[0],d0z0mu[1]);
638 }
639 }
640
a043746c 641 if(!(GetRecoParam()->GetAlignFilterCosmicMergeTracks())) {
f27a7e81 642 curv = curvArray[itrack];
643 curverr = curverrArray[itrack];
644 fspTree->Fill();
645 }
646 }
647
367c6d1f 648 if(GetRecoParam()->GetAlignFilterCosmicMergeTracks()) {
f27a7e81 649 curv = 0.5*(curvArray[0]+curvArray[1]);
650 curverr = 0.5*TMath::Sqrt(curverrArray[0]*curverrArray[0]+curverrArray[1]*curverrArray[1]);
651 fspTree->Fill();
652 }
653 PostData(0,fspTree);
654
a043746c 655 if(!(GetRecoParam()->GetAlignFilterFillQANtuples())) return;
f27a7e81 656 // fill ntuple with track-to-track matching
657 Float_t phimu,thetamu,phiout,thetaout,dphi,dtheta,rotymu,rotyout,droty;
658 Float_t d0[2],z0[2];
659 Float_t sigmad0[2],sigmaz0[2];
660 phimu = track1->GetAlpha()+TMath::ASin(track1->GetSnp());
661 thetamu = 0.5*TMath::Pi()-TMath::ATan(track1->GetTgl());
662 phiout = track2->GetAlpha()+TMath::ASin(track2->GetSnp());
663 thetaout = 0.5*TMath::Pi()-TMath::ATan(track2->GetTgl());
664 rotymu = TMath::ATan2(track1->Px(),track1->Pz());
665 rotyout = TMath::ATan2(track2->Px(),track2->Pz());
666
667 dphi = phimu - (phiout+TMath::Pi());
668 dtheta = thetamu - (TMath::Pi()-thetaout);
669 if(rotymu>0) {
670 droty = rotymu - (rotyout+TMath::Pi());
671 } else {
672 droty = rotymu - (rotyout-TMath::Pi());
673 }
674
675 Double_t alpha = TMath::ATan2(track1->Py(),track1->Px());
676
677 track1->Propagate(alpha,0.,esd->GetMagneticField());
678 track2->Propagate(alpha,0.,esd->GetMagneticField());
679 d0[0] = track1->GetY();
680 z0[0] = track1->GetZ();
681 d0[1] = track2->GetY();
682 z0[1] = track2->GetZ();
683 Float_t dxy = -(d0[0]-d0[1]);
684 Float_t dz = z0[0]-z0[1];
685 sigmad0[0] = TMath::Sqrt(track1->GetSigmaY2());
686 sigmaz0[0] = TMath::Sqrt(track1->GetSigmaZ2());
687 sigmad0[1] = TMath::Sqrt(track2->GetSigmaY2());
688 sigmaz0[1] = TMath::Sqrt(track2->GetSigmaZ2());
689 /*
690 Double_t xyz1atxl0[3],xyz1atxl1[3],xyz2atxl0[3],xyz2atxl1[3];
691 track1->GetXYZAt(0.,esd->GetMagneticField(),xyz1atxl0);
692 track1->GetXYZAt(1.,esd->GetMagneticField(),xyz1atxl1);
693 track2->GetXYZAt(0.,esd->GetMagneticField(),xyz2atxl0);
694 track2->GetXYZAt(1.,esd->GetMagneticField(),xyz2atxl1);
695 Float_t x1aty0 = (xyz1atxl0[0]*xyz1atxl1[1]-xyz1atxl0[1]*xyz1atxl1[0])/(xyz1atxl1[1]-xyz1atxl0[1]);
696 Float_t x2aty0 = (xyz2atxl0[0]*xyz2atxl1[1]-xyz2atxl0[1]*xyz2atxl1[0])/(xyz2atxl1[1]-xyz2atxl0[1]);
697 Float_t dxaty0 = x1aty0-x2aty0;
698 */
699 fntCosmicMatching->Fill((Float_t)nclsTrk[0],(Float_t)nclsTrk[1],track1->Pt(),track2->Pt(),sigmad0[0],sigmad0[1],sigmaz0[0],sigmaz0[1],dxy,dz,phimu,thetamu,TMath::Abs(d0z0mu[0]),d0z0mu[1]);
700
701 return;
702}
703
704//________________________________________________________________________
705void AliAlignmentDataFilterITS::FilterCollision(const AliESDEvent *esd)
706{
707 // Extract ITS AliTrackPoints for Cosmics (check angular matching
708 // of top and bottom track, merge the two tracks, if requested)
709 //
710
711 // Set branch addresses for space points tree
712 AliTrackPointArray *arrayForTree=0;
ab6c74ff 713 Float_t curv,curverr,runNumber;
714 TObjString *itsaligndata=0;
f27a7e81 715 fspTree->SetBranchAddress("SP",&arrayForTree);
716 fspTree->SetBranchAddress("curv",&curv);
717 fspTree->SetBranchAddress("curverr",&curverr);
ab6c74ff 718 fspTree->SetBranchAddress("run",&runNumber);
719 fspTree->SetBranchAddress("ITSAlignData",&itsaligndata);
720
721
722 runNumber = (Float_t)esd->GetRunNumber();
723
724 TTree* esdTree = dynamic_cast<TTree*> (GetInputData(0));
725 // Get the list of OCDB objects used for reco
726 TList *cdbList = (TList*)(esdTree->GetTree()->GetUserInfo())->FindObject("cdbList");
727 TIter iter2(cdbList);
728 TObjString* cdbEntry=0;
729 TString cdbEntryString;
730 while((cdbEntry =(TObjString*)(iter2.Next()))) {
731 cdbEntryString = cdbEntry->GetString();
732 if(cdbEntryString.Contains("ITS/Align/Data"))
733 itsaligndata = new TObjString(*cdbEntry);
734 }
f27a7e81 735
736 Int_t ntracks = esd->GetNumberOfTracks();
737
738 if(ntracks==0) return;
739
740 if(esd->GetPrimaryVertexTracks()->GetNContributors()<=0) return;
741
742 Double_t vtxpos[3]; esd->GetPrimaryVertexTracks()->GetXYZ(vtxpos);
743
744 Int_t ncls=0;
745 Double_t pt=-10000.;
746 Double_t d0z0[2],covd0z0[3];
747 const AliTrackPointArray *array = 0;
748
749 for (Int_t itrack=0; itrack < ntracks; itrack++) {
750 AliESDtrack * track = esd->GetTrack(itrack);
751 if (!track) continue;
752
367c6d1f 753 if(track->GetNcls(0)<GetRecoParam()->GetAlignFilterMinITSPoints()) continue;
f27a7e81 754
a043746c 755 if((GetRecoParam()->GetAlignFilterOnlyITSSATracks()) && track->GetNcls(1)>0) continue;
756 if((GetRecoParam()->GetAlignFilterOnlyITSTPCTracks()) && track->GetNcls(1)==0) continue;
f27a7e81 757
367c6d1f 758 if(track->Pt()<GetRecoParam()->GetAlignFilterMinPt() ||
759 track->Pt()>GetRecoParam()->GetAlignFilterMaxPt()) continue;
f27a7e81 760
761 pt = track->Pt();
762 ncls = track->GetNcls(0);
763 Double_t maxd=10000.;
764 track->PropagateToDCA(esd->GetPrimaryVertex(),esd->GetMagneticField(),maxd,d0z0,covd0z0);
765
766 // read ITS cluster map
767 Int_t map[6];
768 for(Int_t ilay=0;ilay<6;ilay++) {
769 map[ilay]=0;
770 if(track->HasPointOnITSLayer(ilay)) map[ilay]=1;
771 }
772 AliDebug(2,Form("ITS map : %d %d %d %d %d %d pt %f\n",map[0],map[1],map[2],map[3],map[4],map[5],track->Pt()));
773 Int_t idx[12];
774 track->GetITSclusters(idx);
775 AliDebug(2,Form("cls idx %d %d %d %d %d %d %d %d %d %d %d %d\n",idx[0],idx[1],idx[2],idx[3],idx[4],idx[5],idx[6],idx[7],idx[8],idx[9],idx[10],idx[11]));
776
777
778 AliTrackPoint point;
779 Int_t ipt,volId,modId,layerId,lay,lad,det;
780 Int_t jpt=0;
781 Bool_t layerOK[6]; for(Int_t l1=0;l1<6;l1++) layerOK[l1]=kFALSE;
782
783 array = track->GetTrackPointArray();
784 if(!array) continue;
785 for(ipt=0; ipt<array->GetNPoints(); ipt++) {
786 array->GetPoint(point,ipt);
787 volId = point.GetVolumeID();
788 layerId = AliGeomManager::VolUIDToLayer(volId,modId);
789 if(layerId<1 || layerId>6) continue;
790 if(point.IsExtra() &&
a043746c 791 (GetRecoParam()->GetAlignFilterSkipExtra())) continue;
f27a7e81 792 layerOK[layerId-1]=kTRUE;
793 jpt++;
794 }
795
367c6d1f 796 if(jpt < GetRecoParam()->GetAlignFilterMinITSPoints()) continue;
f27a7e81 797
798 fHistNpoints->Fill(jpt);
799 fHistPt->Fill(pt);
800 PostData(1,fListOfHistos);
801
802 Float_t dzOverlap[2];
803 Double_t globExtra[3],locExtra[3];
804 arrayForTree = new AliTrackPointArray(jpt);
805 jpt=0;
806 array = track->GetTrackPointArray();
807 if(!array) continue;
808 for(ipt=0; ipt<array->GetNPoints(); ipt++) {
809 array->GetPoint(point,ipt);
810 volId = point.GetVolumeID();
811 layerId = AliGeomManager::VolUIDToLayer(volId,modId);
812 if(layerId<1 || layerId>6 || !layerOK[layerId-1]) continue;
813 if(!point.IsExtra() ||
a043746c 814 !(GetRecoParam()->GetAlignFilterFillQANtuples())) continue;
f27a7e81 815 ncls--;
816 for(Int_t ll=1;ll<layerId;ll++) modId+=AliITSgeomTGeo::GetNLadders(ll)*AliITSgeomTGeo::GetNDetectors(ll);
817 AliITSgeomTGeo::GetModuleId(modId,lay,lad,det);
818 globExtra[0]=point.GetX();
819 globExtra[1]=point.GetY();
820 globExtra[2]=point.GetZ();
821 AliITSgeomTGeo::GlobalToLocal(lay,lad,det,globExtra,locExtra);
822 track->GetDZ(point.GetX(),point.GetY(),point.GetZ(),esd->GetMagneticField(),dzOverlap);
823 AliTrackPoint pointT;
824 Float_t radius,radiusT,phiv,phivT,thetav,thetavT;
825 for(Int_t lll=0;lll<ipt;lll++) {
826 array->GetPoint(pointT,lll);
827 Int_t layerIdT = AliGeomManager::VolUIDToLayer(pointT.GetVolumeID(),modId);
828 if(layerIdT!=layerId) continue;
829 radius=TMath::Sqrt((point.GetX()-vtxpos[0])*(point.GetX()-vtxpos[0])+(point.GetY()-vtxpos[1])*(point.GetY()-vtxpos[1]));
830 radiusT=TMath::Sqrt((pointT.GetX()-vtxpos[0])*(pointT.GetX()-vtxpos[0])+(pointT.GetY()-vtxpos[1])*(pointT.GetY()-vtxpos[1]));
831 phiv=TMath::ATan2(point.GetY()-vtxpos[1],point.GetX()-vtxpos[0]);
832 phivT=TMath::ATan2(pointT.GetY()-vtxpos[1],pointT.GetX()-vtxpos[0]);
833 if(TMath::Abs(point.GetZ()-vtxpos[2])<0.00001 || TMath::Abs(pointT.GetZ()-vtxpos[2])<0.00001) continue;
834 thetav=TMath::ATan(radius/(point.GetZ()-vtxpos[2]));
835 thetavT=TMath::ATan(radiusT/(pointT.GetZ()-vtxpos[2]));
836 dzOverlap[0]=(Float_t)((phivT-phiv)*0.5*(radiusT+radius));
837 if(TMath::Abs(TMath::Tan(0.5*(thetav+thetavT)))<0.00001) continue;
838 dzOverlap[1]=(Float_t)((pointT.GetZ()-point.GetZ())-(radiusT-radius)/TMath::Tan(0.5*(thetav+thetavT)));
839 fntExtra->Fill((Float_t)ncls,(Float_t)(layerId-1),lad,volId,TMath::ATan2(point.GetY(),point.GetX()),point.GetX(),point.GetY(),point.GetZ(),locExtra[0],locExtra[2],dzOverlap[0],dzOverlap[1],d0z0[0],d0z0[1]);
840 }
841 arrayForTree->AddPoint(jpt,&point);
842 switch(layerId) {
843 case 1:
844 fHistLayer0->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
845 break;
846 case 2:
847 fHistLayer1->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
848 break;
849 case 3:
850 fHistLayer2->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
851 break;
852 case 4:
853 fHistLayer3->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
854 break;
855 case 5:
856 fHistLayer4->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
857 break;
858 case 6:
859 fHistLayer5->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
860 break;
861 }
862 jpt++;
863 }
864
865 curv = track->GetC(esd->GetMagneticField());
866 curverr = TMath::Sqrt(track->GetSigma1Pt2())*track->GetC(esd->GetMagneticField())/track->OneOverPt();
867
868 fspTree->Fill();
869
870 } // end of tracks loop
871
872 PostData(0,fspTree);
873
874 return;
875}
876
877//________________________________________________________________________
878void AliAlignmentDataFilterITS::Terminate(Option_t */*option*/)
879{
880 // Terminate analysis
881 //
882 AliDebug(2,"AliITSAlignmentDataFiler: Terminate() \n");
883
884 fspTree = dynamic_cast<TTree*> (GetOutputData(0));
885 if (!fspTree) {
886 printf("ERROR: fspTree not available\n");
887 return;
888 }
889
890 fListOfHistos = dynamic_cast<TList*> (GetOutputData(1));
891 if (!fListOfHistos) {
892 printf("ERROR: fListOfHistos not available\n");
893 return;
894 }
895
a043746c 896 fHistNevents = dynamic_cast<TH1F*>(fListOfHistos->FindObject("fHistNevents"));
f27a7e81 897 fHistNpoints = dynamic_cast<TH1F*>(fListOfHistos->FindObject("fHistNpoints"));
898 fHistPt = dynamic_cast<TH1F*>(fListOfHistos->FindObject("fHistPt"));
899 fHistLayer0 = dynamic_cast<TH2F*>(fListOfHistos->FindObject("fHistLayer0"));
900 fHistLayer1 = dynamic_cast<TH2F*>(fListOfHistos->FindObject("fHistLayer1"));
901 fHistLayer2 = dynamic_cast<TH2F*>(fListOfHistos->FindObject("fHistLayer2"));
902 fHistLayer3 = dynamic_cast<TH2F*>(fListOfHistos->FindObject("fHistLayer3"));
903 fHistLayer4 = dynamic_cast<TH2F*>(fListOfHistos->FindObject("fHistLayer4"));
904 fHistLayer5 = dynamic_cast<TH2F*>(fListOfHistos->FindObject("fHistLayer5"));
905 fntExtra = dynamic_cast<TNtuple*>(fListOfHistos->FindObject("fntExtra"));
906 fntCosmicMatching = dynamic_cast<TNtuple*>(fListOfHistos->FindObject("fntCosmicMatching"));
907
908
909
910 return;
911}
912