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short description of the package from Naomi's presentation
[u/mrichter/AliRoot.git] / PWG1 / AliAlignmentDataFilterITS.cxx
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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;
288 Float_t curv,curverr;
289 fspTree->Branch("SP","AliTrackPointArray",&array);
290 fspTree->Branch("curv",&curv);
291 fspTree->Branch("curverr",&curverr);
292
293 return;
294}
295
296//________________________________________________________________________
297void AliAlignmentDataFilterITS::Exec(Option_t */*option*/)
298{
299 // Execute analysis for current event:
300 // write ITS AliTrackPoints for selected tracks to fspTree
a043746c 301
c1605e49 302 // check the geometry
303 if(!gGeoManager) {
304 printf("AliAlignmentDataFilterITS::Exec(): no geometry loaded \n");
305 return;
367c6d1f 306 }
307
308 // check if we have AliITSRecoParam
a043746c 309 if(!GetRecoParam()) {
367c6d1f 310 if(!fITSRecoParam) {
311 printf("AliAlignmentDataFilterITS::Exec(): no AliITSRecoParam\n");
312 return;
313 }
f27a7e81 314 }
315
a043746c 316
f27a7e81 317 if(!fESD) {
318 printf("AliAlignmentDataFilterITS::Exec(): no ESD \n");
319 return;
320 }
321 if(!fESDfriend) {
322 printf("AliAlignmentDataFilterITS::Exec(): no ESDfriend \n");
323 return;
324 }
325 // attach ESDfriend
326 fESD->SetESDfriend(fESDfriend);
327
480207c6 328 // Post the data for slot 0
329 fHistNevents->Fill(0);
330
cf53e6db 331
332 // write field value to spTree UserInfo
333 if(!((fspTree->GetUserInfo())->FindObject("BzkGauss"))) {
334 Double_t bz=fESD->GetMagneticField();
335 TString bzString; bzString+=bz;
336 TObjString *bzObjString = new TObjString(bzString);
337 TList *bzList = new TList();
338 bzList->SetOwner(1);
339 bzList->SetName("BzkGauss");
340 bzList->Add(bzObjString);
341 fspTree->GetUserInfo()->Add(bzList);
342 }
343
344
f27a7e81 345 // Process event as Cosmic or Collision
346 //if(esd->GetEventType()== ???? ) {
347 printf("AliAlignmentDataFilterITS::Exec(): MOVE ASAP TO esd->GetEventType() !\n");
367c6d1f 348 if(GetRecoParam()->GetAlignFilterCosmics()) {
f27a7e81 349 FilterCosmic(fESD);
350 } else {
351 FilterCollision(fESD);
352 }
353
480207c6 354 PostData(1,fListOfHistos);
355
f27a7e81 356 return;
357}
358
359//________________________________________________________________________
360void AliAlignmentDataFilterITS::FilterCosmic(const AliESDEvent *esd)
361{
362 // Extract ITS AliTrackPoints for Cosmics (check angular matching
363 // of top and bottom track, merge the two tracks, if requested)
364 //
365
366 // Set branch addresses for space points tree
367 AliTrackPointArray *arrayForTree=0;
368 Float_t curv,curverr;
369 fspTree->SetBranchAddress("SP",&arrayForTree);
370 fspTree->SetBranchAddress("curv",&curv);
371 fspTree->SetBranchAddress("curverr",&curverr);
372
367c6d1f 373 TString triggeredClass = fESD->GetFiredTriggerClasses();
374 if(fOnlySPDFO && !triggeredClass.Contains("C0SCO-ABCE-NOPF-CENT")) return;
375
f27a7e81 376
377 Int_t ntracks = esd->GetNumberOfTracks();
378 if(ntracks<2) return;
379
380 if(esd->GetPrimaryVertexSPD()->GetNContributors()<0) return;
381
382 Double_t vtxpos[3]; esd->GetPrimaryVertexSPD()->GetXYZ(vtxpos);
383
384 Int_t *goodtracksArray = new Int_t[ntracks];
385 Float_t *phiArray = new Float_t[ntracks];
386 Float_t *thetaArray = new Float_t[ntracks];
387 Int_t *nclsArray = new Int_t[ntracks];
388 Int_t ngt=0;
389 Int_t itrack=0;
390 for (itrack=0; itrack < ntracks; itrack++) {
391 AliESDtrack *track = esd->GetTrack(itrack);
392 if (!track) continue;
393
394
367c6d1f 395 if(track->GetNcls(0)<GetRecoParam()->GetAlignFilterMinITSPoints()) continue;
f27a7e81 396
a043746c 397 if((GetRecoParam()->GetAlignFilterOnlyITSSATracks()) && track->GetNcls(1)>0) continue;
398 if((GetRecoParam()->GetAlignFilterOnlyITSTPCTracks()) && track->GetNcls(1)==0) continue;
f27a7e81 399
400 Float_t phi = track->GetAlpha()+TMath::ASin(track->GetSnp());
401 Float_t theta = 0.5*TMath::Pi()-TMath::ATan(track->GetTgl());
402
367c6d1f 403 if(track->Pt()<GetRecoParam()->GetAlignFilterMinPt() ||
404 track->Pt()>GetRecoParam()->GetAlignFilterMaxPt()) continue;
f27a7e81 405
406 goodtracksArray[ngt] = itrack;
407 phiArray[ngt] = phi;
408 thetaArray[ngt] = theta;
409 nclsArray[ngt] = track->GetNcls(0);
410 ngt++;
411 }
412
413 if(ngt<2) {
414 delete [] goodtracksArray; goodtracksArray=0;
415 delete [] phiArray; phiArray=0;
416 delete [] thetaArray; thetaArray=0;
417 delete [] nclsArray; nclsArray=0;
418 return;
419 }
420
421 // check matching of the two tracks from the muon
422 Float_t min = 10000000.;
423 Int_t maxCls = 0;
424 Int_t good1 = -1, good2 = -1;
425 for(Int_t itr1=0; itr1<ngt-1; itr1++) {
426 for(Int_t itr2=itr1+1; itr2<ngt; itr2++) {
427 Float_t deltatheta = TMath::Abs(TMath::Pi()-thetaArray[itr1]-thetaArray[itr2]);
367c6d1f 428 if(deltatheta>GetRecoParam()->GetAlignFilterMaxMatchingAngle()) continue;
f27a7e81 429 Float_t deltaphi = TMath::Abs(TMath::Abs(phiArray[itr1]-phiArray[itr2])-TMath::Pi());
367c6d1f 430 if(deltaphi>GetRecoParam()->GetAlignFilterMaxMatchingAngle()) continue;
f27a7e81 431 if(nclsArray[itr1]+nclsArray[itr2] > maxCls) {
432 maxCls = nclsArray[itr1]+nclsArray[itr2];
433 min = deltatheta+deltaphi;
434 good1 = goodtracksArray[itr1];
435 good2 = goodtracksArray[itr2];
436 } else if(nclsArray[itr1]+nclsArray[itr2] == maxCls) {
437 if(deltatheta+deltaphi < min) {
438 min = deltatheta+deltaphi;
439 good1 = goodtracksArray[itr1];
440 good2 = goodtracksArray[itr2];
441 }
442 }
443 }
444 }
445
446 delete [] goodtracksArray; goodtracksArray=0;
447 delete [] phiArray; phiArray=0;
448 delete [] thetaArray; thetaArray=0;
449 delete [] nclsArray; nclsArray=0;
450
451 if(good1<0) return;
452 AliDebug(2,"ok track matching");
453
454 // track1 will be the inward track (top)
455 // track2 the outward (bottom)
456 AliESDtrack *track1=0;
457 AliESDtrack *track2=0;
458 AliESDtrack *track = esd->GetTrack(good1);
459 if(track->Py()>0) {
460 track1 = esd->GetTrack(good1);
461 track2 = esd->GetTrack(good2);
462 } else {
463 track1 = esd->GetTrack(good2);
464 track2 = esd->GetTrack(good1);
465 }
466
467 AliTrackPoint point;
468 const AliTrackPointArray *array=0;
469 Int_t ipt,volId,modId,layerId,lay,lad,det;
470 Int_t jpt=0;
471 Bool_t layerOK[6][2];
472 Int_t nclsTrk[2]={0,0};
473
474 for(Int_t l1=0;l1<6;l1++) for(Int_t l2=0;l2<2;l2++) layerOK[l1][l2]=kFALSE;
475
476 for(itrack=0; itrack<2; itrack++) {
477 if(itrack==0) {
478 track = track1;
479 } else {
480 track = track2;
481 }
482 array = track->GetTrackPointArray();
483 if(!array) {
484 AliWarning("No tracks points avaialble");
485 continue;
486 }
487 for(ipt=0; ipt<array->GetNPoints(); ipt++) {
488 array->GetPoint(point,ipt);
489 volId = point.GetVolumeID();
490 layerId = AliGeomManager::VolUIDToLayer(volId,modId);
491 AliDebug(2,Form("%d %d\n",ipt,layerId-1));
492 if(point.IsExtra() &&
a043746c 493 (GetRecoParam()->GetAlignFilterSkipExtra())) continue;
f27a7e81 494 if(layerId>6) continue;
367c6d1f 495 if(!GetRecoParam()->GetAlignFilterUseLayer(layerId-1)) continue;
f27a7e81 496 // check minAngleWrtITSModulePlanes
497 Double_t p[3]; track->GetDirection(p);
498 TVector3 pvec(p[0],p[1],p[2]);
499 Double_t rot[9]; AliGeomManager::GetOrigRotation(volId,rot);
500 TVector3 normvec(rot[1],rot[4],rot[7]);
501 Double_t angle = pvec.Angle(normvec);
502 if(angle>0.5*TMath::Pi()) angle = TMath::Pi()-angle;
503 angle = 0.5*TMath::Pi()-angle;
367c6d1f 504 if(angle<GetRecoParam()->GetAlignFilterMinAngleWrtModulePlanes()) continue;
f27a7e81 505 layerOK[layerId-1][itrack]=kTRUE;
506 jpt++;
507 nclsTrk[itrack]++;
508 }
509 }
510 AliDebug(2,Form("nClsTrk1 %d nClsTrk2 %d\n",nclsTrk[0],nclsTrk[1]));
511
512 // read ITS cluster maps
513 Int_t map1[6],map2[6];
514 for(Int_t ilay=0;ilay<6;ilay++) {
515 map1[ilay]=0; map2[ilay]=0;
516 if(track1->HasPointOnITSLayer(ilay)) map1[ilay]=1;
517 if(track2->HasPointOnITSLayer(ilay)) map2[ilay]=1;
518 }
519 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()));
520 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()));
521 Int_t idx1[12],idx2[12];
522 track1->GetITSclusters(idx1);
523 track2->GetITSclusters(idx2);
524 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]));
525 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]));
526
527
367c6d1f 528 if(jpt<GetRecoParam()->GetAlignFilterMinITSPointsMerged()) return;
f27a7e81 529 AliDebug(2,Form(" Total points %d, accepted\n",jpt));
530 fHistNpoints->Fill(jpt);
531 fHistPt->Fill(0.5*(track1->Pt()+track2->Pt()));
532
533 Float_t d0z0mu[2];
534 track1->GetDZ(0,0,0,esd->GetMagneticField(),d0z0mu);
535 //printf("d0mu %f z0mu %f\n",d0z0mu[0],d0z0mu[1]);
536
537 Float_t dzOverlap[2];
538 Float_t curvArray[2],curverrArray[2];
539 Double_t globExtra[3],locExtra[3];
367c6d1f 540 if(GetRecoParam()->GetAlignFilterCosmicMergeTracks())
f27a7e81 541 arrayForTree = new AliTrackPointArray(jpt);
542
543 jpt=0;
544 for(itrack=0; itrack<2; itrack++) {
545 if(itrack==0) {
546 track = track1;
547 } else {
548 track = track2;
549 }
550 curvArray[itrack] = track->GetC(esd->GetMagneticField());
551 curverrArray[itrack] = TMath::Sqrt(track->GetSigma1Pt2())*track->GetC(esd->GetMagneticField())/track->OneOverPt();
552
a043746c 553 if(!(GetRecoParam()->GetAlignFilterCosmicMergeTracks())) {
f27a7e81 554 jpt=0;
555 arrayForTree = new AliTrackPointArray(nclsTrk[itrack]);
556 }
557 array = track->GetTrackPointArray();
558 for(ipt=0; ipt<array->GetNPoints(); ipt++) {
559 array->GetPoint(point,ipt);
560 volId = point.GetVolumeID();
561 layerId = AliGeomManager::VolUIDToLayer(volId,modId);
562 if(layerId>6 || !layerOK[layerId-1][itrack]) continue;
563 arrayForTree->AddPoint(jpt,&point);
564 jpt++;
565 switch(layerId) {
566 case 1:
567 fHistLayer0->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
568 break;
569 case 2:
570 fHistLayer1->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
571 break;
572 case 3:
573 fHistLayer2->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
574 break;
575 case 4:
576 fHistLayer3->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
577 break;
578 case 5:
579 fHistLayer4->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
580 break;
581 case 6:
582 fHistLayer5->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
583 break;
584 }
585 // Post the data for slot 0
586 if(jpt==1) PostData(1,fListOfHistos); // only if this is the first points
587 if(!point.IsExtra() ||
a043746c 588 !(GetRecoParam()->GetAlignFilterFillQANtuples())) continue;
f27a7e81 589 nclsTrk[itrack]--;
590 for(Int_t ll=1;ll<layerId;ll++) modId+=AliITSgeomTGeo::GetNLadders(ll)*AliITSgeomTGeo::GetNDetectors(ll);
591 AliITSgeomTGeo::GetModuleId(modId,lay,lad,det);
592 globExtra[0]=point.GetX();
593 globExtra[1]=point.GetY();
594 globExtra[2]=point.GetZ();
595 AliITSgeomTGeo::GlobalToLocal(lay,lad,det,globExtra,locExtra);
596 //printf("%d %d %d %d %d %f %f %f\n",volId,modId,lay,lad,det,locExtra[0],locExtra[1],locExtra[2]);
597 track->GetDZ(point.GetX(),point.GetY(),point.GetZ(),esd->GetMagneticField(),dzOverlap);
598 AliTrackPoint pointT;
599 Float_t radius,radiusT,phiv,phivT,thetav,thetavT;
600 for(Int_t lll=0;lll<ipt;lll++) {
601 array->GetPoint(pointT,lll);
602 Int_t layerIdT = AliGeomManager::VolUIDToLayer(pointT.GetVolumeID(),modId);
603 if(layerIdT!=layerId) continue;
604 radius=TMath::Sqrt((point.GetX()-vtxpos[0])*(point.GetX()-vtxpos[0])+(point.GetY()-vtxpos[1])*(point.GetY()-vtxpos[1]));
605 radiusT=TMath::Sqrt((pointT.GetX()-vtxpos[0])*(pointT.GetX()-vtxpos[0])+(pointT.GetY()-vtxpos[1])*(pointT.GetY()-vtxpos[1]));
606 phiv=TMath::ATan2(point.GetY()-vtxpos[1],point.GetX()-vtxpos[0]);
607 phivT=TMath::ATan2(pointT.GetY()-vtxpos[1],pointT.GetX()-vtxpos[0]);
608 if(TMath::Abs(point.GetZ()-vtxpos[2])<0.00001 || TMath::Abs(pointT.GetZ()-vtxpos[2])<0.00001) continue;
609 thetav=TMath::ATan(radius/(point.GetZ()-vtxpos[2]));
610 thetavT=TMath::ATan(radiusT/(pointT.GetZ()-vtxpos[2]));
611 dzOverlap[0]=(Float_t)((phivT-phiv)*0.5*(radiusT+radius));
612 if(TMath::Abs(TMath::Tan(0.5*(thetav+thetavT)))<0.00001) continue;
613 dzOverlap[1]=(Float_t)((pointT.GetZ()-point.GetZ())-(radiusT-radius)/TMath::Tan(0.5*(thetav+thetavT)));
614 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]);
615 }
616 }
617
a043746c 618 if(!(GetRecoParam()->GetAlignFilterCosmicMergeTracks())) {
f27a7e81 619 curv = curvArray[itrack];
620 curverr = curverrArray[itrack];
621 fspTree->Fill();
622 }
623 }
624
367c6d1f 625 if(GetRecoParam()->GetAlignFilterCosmicMergeTracks()) {
f27a7e81 626 curv = 0.5*(curvArray[0]+curvArray[1]);
627 curverr = 0.5*TMath::Sqrt(curverrArray[0]*curverrArray[0]+curverrArray[1]*curverrArray[1]);
628 fspTree->Fill();
629 }
630 PostData(0,fspTree);
631
a043746c 632 if(!(GetRecoParam()->GetAlignFilterFillQANtuples())) return;
f27a7e81 633 // fill ntuple with track-to-track matching
634 Float_t phimu,thetamu,phiout,thetaout,dphi,dtheta,rotymu,rotyout,droty;
635 Float_t d0[2],z0[2];
636 Float_t sigmad0[2],sigmaz0[2];
637 phimu = track1->GetAlpha()+TMath::ASin(track1->GetSnp());
638 thetamu = 0.5*TMath::Pi()-TMath::ATan(track1->GetTgl());
639 phiout = track2->GetAlpha()+TMath::ASin(track2->GetSnp());
640 thetaout = 0.5*TMath::Pi()-TMath::ATan(track2->GetTgl());
641 rotymu = TMath::ATan2(track1->Px(),track1->Pz());
642 rotyout = TMath::ATan2(track2->Px(),track2->Pz());
643
644 dphi = phimu - (phiout+TMath::Pi());
645 dtheta = thetamu - (TMath::Pi()-thetaout);
646 if(rotymu>0) {
647 droty = rotymu - (rotyout+TMath::Pi());
648 } else {
649 droty = rotymu - (rotyout-TMath::Pi());
650 }
651
652 Double_t alpha = TMath::ATan2(track1->Py(),track1->Px());
653
654 track1->Propagate(alpha,0.,esd->GetMagneticField());
655 track2->Propagate(alpha,0.,esd->GetMagneticField());
656 d0[0] = track1->GetY();
657 z0[0] = track1->GetZ();
658 d0[1] = track2->GetY();
659 z0[1] = track2->GetZ();
660 Float_t dxy = -(d0[0]-d0[1]);
661 Float_t dz = z0[0]-z0[1];
662 sigmad0[0] = TMath::Sqrt(track1->GetSigmaY2());
663 sigmaz0[0] = TMath::Sqrt(track1->GetSigmaZ2());
664 sigmad0[1] = TMath::Sqrt(track2->GetSigmaY2());
665 sigmaz0[1] = TMath::Sqrt(track2->GetSigmaZ2());
666 /*
667 Double_t xyz1atxl0[3],xyz1atxl1[3],xyz2atxl0[3],xyz2atxl1[3];
668 track1->GetXYZAt(0.,esd->GetMagneticField(),xyz1atxl0);
669 track1->GetXYZAt(1.,esd->GetMagneticField(),xyz1atxl1);
670 track2->GetXYZAt(0.,esd->GetMagneticField(),xyz2atxl0);
671 track2->GetXYZAt(1.,esd->GetMagneticField(),xyz2atxl1);
672 Float_t x1aty0 = (xyz1atxl0[0]*xyz1atxl1[1]-xyz1atxl0[1]*xyz1atxl1[0])/(xyz1atxl1[1]-xyz1atxl0[1]);
673 Float_t x2aty0 = (xyz2atxl0[0]*xyz2atxl1[1]-xyz2atxl0[1]*xyz2atxl1[0])/(xyz2atxl1[1]-xyz2atxl0[1]);
674 Float_t dxaty0 = x1aty0-x2aty0;
675 */
676 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]);
677
678 return;
679}
680
681//________________________________________________________________________
682void AliAlignmentDataFilterITS::FilterCollision(const AliESDEvent *esd)
683{
684 // Extract ITS AliTrackPoints for Cosmics (check angular matching
685 // of top and bottom track, merge the two tracks, if requested)
686 //
687
688 // Set branch addresses for space points tree
689 AliTrackPointArray *arrayForTree=0;
690 Float_t curv,curverr;
691 fspTree->SetBranchAddress("SP",&arrayForTree);
692 fspTree->SetBranchAddress("curv",&curv);
693 fspTree->SetBranchAddress("curverr",&curverr);
694
695 Int_t ntracks = esd->GetNumberOfTracks();
696
697 if(ntracks==0) return;
698
699 if(esd->GetPrimaryVertexTracks()->GetNContributors()<=0) return;
700
701 Double_t vtxpos[3]; esd->GetPrimaryVertexTracks()->GetXYZ(vtxpos);
702
703 Int_t ncls=0;
704 Double_t pt=-10000.;
705 Double_t d0z0[2],covd0z0[3];
706 const AliTrackPointArray *array = 0;
707
708 for (Int_t itrack=0; itrack < ntracks; itrack++) {
709 AliESDtrack * track = esd->GetTrack(itrack);
710 if (!track) continue;
711
367c6d1f 712 if(track->GetNcls(0)<GetRecoParam()->GetAlignFilterMinITSPoints()) continue;
f27a7e81 713
a043746c 714 if((GetRecoParam()->GetAlignFilterOnlyITSSATracks()) && track->GetNcls(1)>0) continue;
715 if((GetRecoParam()->GetAlignFilterOnlyITSTPCTracks()) && track->GetNcls(1)==0) continue;
f27a7e81 716
367c6d1f 717 if(track->Pt()<GetRecoParam()->GetAlignFilterMinPt() ||
718 track->Pt()>GetRecoParam()->GetAlignFilterMaxPt()) continue;
f27a7e81 719
720 pt = track->Pt();
721 ncls = track->GetNcls(0);
722 Double_t maxd=10000.;
723 track->PropagateToDCA(esd->GetPrimaryVertex(),esd->GetMagneticField(),maxd,d0z0,covd0z0);
724
725 // read ITS cluster map
726 Int_t map[6];
727 for(Int_t ilay=0;ilay<6;ilay++) {
728 map[ilay]=0;
729 if(track->HasPointOnITSLayer(ilay)) map[ilay]=1;
730 }
731 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()));
732 Int_t idx[12];
733 track->GetITSclusters(idx);
734 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]));
735
736
737 AliTrackPoint point;
738 Int_t ipt,volId,modId,layerId,lay,lad,det;
739 Int_t jpt=0;
740 Bool_t layerOK[6]; for(Int_t l1=0;l1<6;l1++) layerOK[l1]=kFALSE;
741
742 array = track->GetTrackPointArray();
743 if(!array) continue;
744 for(ipt=0; ipt<array->GetNPoints(); ipt++) {
745 array->GetPoint(point,ipt);
746 volId = point.GetVolumeID();
747 layerId = AliGeomManager::VolUIDToLayer(volId,modId);
748 if(layerId<1 || layerId>6) continue;
749 if(point.IsExtra() &&
a043746c 750 (GetRecoParam()->GetAlignFilterSkipExtra())) continue;
f27a7e81 751 layerOK[layerId-1]=kTRUE;
752 jpt++;
753 }
754
367c6d1f 755 if(jpt < GetRecoParam()->GetAlignFilterMinITSPoints()) continue;
f27a7e81 756
757 fHistNpoints->Fill(jpt);
758 fHistPt->Fill(pt);
759 PostData(1,fListOfHistos);
760
761 Float_t dzOverlap[2];
762 Double_t globExtra[3],locExtra[3];
763 arrayForTree = new AliTrackPointArray(jpt);
764 jpt=0;
765 array = track->GetTrackPointArray();
766 if(!array) continue;
767 for(ipt=0; ipt<array->GetNPoints(); ipt++) {
768 array->GetPoint(point,ipt);
769 volId = point.GetVolumeID();
770 layerId = AliGeomManager::VolUIDToLayer(volId,modId);
771 if(layerId<1 || layerId>6 || !layerOK[layerId-1]) continue;
772 if(!point.IsExtra() ||
a043746c 773 !(GetRecoParam()->GetAlignFilterFillQANtuples())) continue;
f27a7e81 774 ncls--;
775 for(Int_t ll=1;ll<layerId;ll++) modId+=AliITSgeomTGeo::GetNLadders(ll)*AliITSgeomTGeo::GetNDetectors(ll);
776 AliITSgeomTGeo::GetModuleId(modId,lay,lad,det);
777 globExtra[0]=point.GetX();
778 globExtra[1]=point.GetY();
779 globExtra[2]=point.GetZ();
780 AliITSgeomTGeo::GlobalToLocal(lay,lad,det,globExtra,locExtra);
781 track->GetDZ(point.GetX(),point.GetY(),point.GetZ(),esd->GetMagneticField(),dzOverlap);
782 AliTrackPoint pointT;
783 Float_t radius,radiusT,phiv,phivT,thetav,thetavT;
784 for(Int_t lll=0;lll<ipt;lll++) {
785 array->GetPoint(pointT,lll);
786 Int_t layerIdT = AliGeomManager::VolUIDToLayer(pointT.GetVolumeID(),modId);
787 if(layerIdT!=layerId) continue;
788 radius=TMath::Sqrt((point.GetX()-vtxpos[0])*(point.GetX()-vtxpos[0])+(point.GetY()-vtxpos[1])*(point.GetY()-vtxpos[1]));
789 radiusT=TMath::Sqrt((pointT.GetX()-vtxpos[0])*(pointT.GetX()-vtxpos[0])+(pointT.GetY()-vtxpos[1])*(pointT.GetY()-vtxpos[1]));
790 phiv=TMath::ATan2(point.GetY()-vtxpos[1],point.GetX()-vtxpos[0]);
791 phivT=TMath::ATan2(pointT.GetY()-vtxpos[1],pointT.GetX()-vtxpos[0]);
792 if(TMath::Abs(point.GetZ()-vtxpos[2])<0.00001 || TMath::Abs(pointT.GetZ()-vtxpos[2])<0.00001) continue;
793 thetav=TMath::ATan(radius/(point.GetZ()-vtxpos[2]));
794 thetavT=TMath::ATan(radiusT/(pointT.GetZ()-vtxpos[2]));
795 dzOverlap[0]=(Float_t)((phivT-phiv)*0.5*(radiusT+radius));
796 if(TMath::Abs(TMath::Tan(0.5*(thetav+thetavT)))<0.00001) continue;
797 dzOverlap[1]=(Float_t)((pointT.GetZ()-point.GetZ())-(radiusT-radius)/TMath::Tan(0.5*(thetav+thetavT)));
798 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]);
799 }
800 arrayForTree->AddPoint(jpt,&point);
801 switch(layerId) {
802 case 1:
803 fHistLayer0->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
804 break;
805 case 2:
806 fHistLayer1->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
807 break;
808 case 3:
809 fHistLayer2->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
810 break;
811 case 4:
812 fHistLayer3->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
813 break;
814 case 5:
815 fHistLayer4->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
816 break;
817 case 6:
818 fHistLayer5->Fill(TMath::ATan2(point.GetY(),point.GetX()),point.GetZ());
819 break;
820 }
821 jpt++;
822 }
823
824 curv = track->GetC(esd->GetMagneticField());
825 curverr = TMath::Sqrt(track->GetSigma1Pt2())*track->GetC(esd->GetMagneticField())/track->OneOverPt();
826
827 fspTree->Fill();
828
829 } // end of tracks loop
830
831 PostData(0,fspTree);
832
833 return;
834}
835
836//________________________________________________________________________
837void AliAlignmentDataFilterITS::Terminate(Option_t */*option*/)
838{
839 // Terminate analysis
840 //
841 AliDebug(2,"AliITSAlignmentDataFiler: Terminate() \n");
842
843 fspTree = dynamic_cast<TTree*> (GetOutputData(0));
844 if (!fspTree) {
845 printf("ERROR: fspTree not available\n");
846 return;
847 }
848
849 fListOfHistos = dynamic_cast<TList*> (GetOutputData(1));
850 if (!fListOfHistos) {
851 printf("ERROR: fListOfHistos not available\n");
852 return;
853 }
854
a043746c 855 fHistNevents = dynamic_cast<TH1F*>(fListOfHistos->FindObject("fHistNevents"));
f27a7e81 856 fHistNpoints = dynamic_cast<TH1F*>(fListOfHistos->FindObject("fHistNpoints"));
857 fHistPt = dynamic_cast<TH1F*>(fListOfHistos->FindObject("fHistPt"));
858 fHistLayer0 = dynamic_cast<TH2F*>(fListOfHistos->FindObject("fHistLayer0"));
859 fHistLayer1 = dynamic_cast<TH2F*>(fListOfHistos->FindObject("fHistLayer1"));
860 fHistLayer2 = dynamic_cast<TH2F*>(fListOfHistos->FindObject("fHistLayer2"));
861 fHistLayer3 = dynamic_cast<TH2F*>(fListOfHistos->FindObject("fHistLayer3"));
862 fHistLayer4 = dynamic_cast<TH2F*>(fListOfHistos->FindObject("fHistLayer4"));
863 fHistLayer5 = dynamic_cast<TH2F*>(fListOfHistos->FindObject("fHistLayer5"));
864 fntExtra = dynamic_cast<TNtuple*>(fListOfHistos->FindObject("fntExtra"));
865 fntCosmicMatching = dynamic_cast<TNtuple*>(fListOfHistos->FindObject("fntCosmicMatching"));
866
867
868
869 return;
870}
871