1 //------------------------------------------------------------------------------
2 // Implementation of AliPerformanceDEdx class. It keeps information from
3 // comparison of reconstructed and MC particle tracks. In addtion,
4 // it keeps selection cuts used during comparison. The comparison
5 // information is stored in the ROOT histograms. Analysis of these
6 // histograms can be done by using Analyse() class function. The result of
7 // the analysis (histograms/graphs) are stored in the folder which is
8 // a data of AliPerformanceDEdx.
10 // Author: J.Otwinowski 04/02/2008
11 // Changes by M.Knichel 15/10/2010
12 //------------------------------------------------------------------------------
16 // after running comparison task, read the file, and get component
17 gROOT->LoadMacro("$ALICE_ROOT/PWGPP/Macros/LoadMyLibs.C");
19 TFile f("Output.root");
20 //AliPerformanceDEdx * compObj = (AliPerformanceDEdx*)f.Get("AliPerformanceDEdx");
21 AliPerformanceDEdx * compObj = (AliPerformanceDEdx*)coutput->FindObject("AliPerformanceDEdx");
23 // Analyse comparison data
26 // the output histograms/graphs will be stored in the folder "folderDEdx"
27 compObj->GetAnalysisFolder()->ls("*");
29 // user can save whole comparison object (or only folder with anlysed histograms)
30 // in the seperate output file (e.g.)
31 TFile fout("Analysed_DEdx.root","recreate");
32 //compObj->Write(); // compObj->GetAnalysisFolder()->Write();
33 compObj->GetAnalysisFolder()->Write();
38 #include "TDirectory.h"
47 #include "AliPerformanceDEdx.h"
48 #include "AliPerformanceTPC.h"
49 #include "AliTPCPerformanceSummary.h"
50 #include "AliESDEvent.h"
51 #include "AliTracker.h"
52 #include "AliMCEvent.h"
53 #include "AliESDtrack.h"
56 #include "AliMCInfoCuts.h"
57 #include "AliMathBase.h"
58 #include "AliRecInfoCuts.h"
59 #include "AliTreeDraw.h"
60 #include "AliHeader.h"
61 #include "AliGenEventHeader.h"
65 ClassImp(AliPerformanceDEdx)
67 Bool_t AliPerformanceDEdx::fgMergeTHnSparse = kFALSE;
68 Bool_t AliPerformanceDEdx::fgUseMergeTHnSparse = kFALSE;
70 //_____________________________________________________________________________
71 AliPerformanceDEdx::AliPerformanceDEdx():
72 AliPerformanceObject("AliPerformanceDEdx"),
85 // default constructor
89 //_____________________________________________________________________________
90 AliPerformanceDEdx::AliPerformanceDEdx(Char_t* name="AliPerformanceDEdx", Char_t* title="AliPerformanceDEdx",Int_t analysisMode=0, Bool_t hptGenerator=kFALSE):
91 AliPerformanceObject(name,title),
106 SetAnalysisMode(analysisMode);
107 SetHptGenerator(hptGenerator);
112 //_____________________________________________________________________________
113 AliPerformanceDEdx::~AliPerformanceDEdx()
116 if(fDeDxHisto) delete fDeDxHisto; fDeDxHisto=0;
117 if(fAnalysisFolder) delete fAnalysisFolder; fAnalysisFolder=0;
120 //_____________________________________________________________________________
121 void AliPerformanceDEdx::Init()
128 Double_t pMin = 1.e-2, pMax = 20.;
132 if (IsHptGenerator()) {
135 binsP = CreateLogAxis(nPBins,pMin,pMax);
140 Double_t binsP[32] = {0.,0.05,0.1,0.15,0.2,0.25,0.3,0.35,0.4,0.45,0.5,0.55,0.6,0.7,0.8,0.9,1.0,1.2,1.4,1.6,1.8,2.0,2.25,2.5,2.75,3.,3.5,4.,5.,6.,8.,10.};
141 Double_t pMin = 0., pMax = 10.;
143 if(IsHptGenerator() == kTRUE) {
145 pMin = 0.; pMax = 100.;
149 //dedx:alpha:y:z:snp:tgl:ncls:p
150 //dedx:phi:y:z:snp:tgl:ncls:p
151 //Int_t binsQA[8] = {300, 50, 50, 50, 50, 50, 80, nPBins};
152 //Double_t xminQA[8] = {0, -4,-20,-250, -1, -2, 0, pMin};
153 //Double_t xmaxQA[8] = {300, 4, 20, 250, 1, 2, 160, pMax};
154 Int_t binsQA[10] = {300, 144, 50, 50, 50, 50, 80, nPBins, 80, 80};
155 Double_t xminQA[10] = {0, -TMath::Pi(),-20,-250, -1, -2, 0, pMin, 0., 0.};
156 Double_t xmaxQA[10] = {300, TMath::Pi(), 20, 250, 1, 2, 160, pMax ,160., 160.};
158 //fDeDxHisto = new THnSparseF("fDeDxHisto","dedx:alpha:y:z:snp:tgl:ncls:momentum",8,binsQA,xminQA,xmaxQA);
159 fDeDxHisto = new THnSparseF("fDeDxHisto","dedx:phi:y:z:snp:tgl:ncls:momentum:TPCSignalN:CrossedRows",10,binsQA,xminQA,xmaxQA);
160 fDeDxHisto->SetBinEdges(7,binsP);
162 fDeDxHisto->GetAxis(0)->SetTitle("dedx (a.u.)");
163 fDeDxHisto->GetAxis(1)->SetTitle("#phi (rad)");
164 fDeDxHisto->GetAxis(2)->SetTitle("y (cm)");
165 fDeDxHisto->GetAxis(3)->SetTitle("z (cm)");
166 fDeDxHisto->GetAxis(4)->SetTitle("sin#phi");
167 fDeDxHisto->GetAxis(5)->SetTitle("tan#lambda");
168 fDeDxHisto->GetAxis(6)->SetTitle("ncls");
169 fDeDxHisto->GetAxis(7)->SetTitle("p (GeV/c)");
170 fDeDxHisto->GetAxis(8)->SetTitle("number of cls used for dEdx");
171 fDeDxHisto->GetAxis(9)->SetTitle("Crossed rows in the TPC");
172 //fDeDxHisto->Sumw2();
176 AliDebug(AliLog::kError, "ERROR: Cannot find AliMCInfoCuts object");
179 AliDebug(AliLog::kError, "ERROR: Cannot find AliRecInfoCuts object");
183 fAnalysisFolder = CreateFolder("folderDEdx","Analysis de/dx Folder");
185 // save merge status in object
186 fMergeTHnSparseObj = fgMergeTHnSparse;
190 //_____________________________________________________________________________
191 void AliPerformanceDEdx::ProcessTPC(AliStack* const /*stack*/, AliESDtrack *const /*esdTrack*/)
193 // Fill dE/dx comparison information
194 AliDebug(AliLog::kWarning, "Warning: Not implemented");
197 //_____________________________________________________________________________
198 void AliPerformanceDEdx::ProcessInnerTPC(AliStack* const stack, AliESDtrack *const esdTrack, AliESDEvent* const esdEvent)
201 // Fill TPC track information at inner TPC wall
203 if(!esdEvent) return;
204 if(!esdTrack) return;
206 if( IsUseTrackVertex() )
208 // Relate TPC inner params to prim. vertex
209 const AliESDVertex *vtxESD = esdEvent->GetPrimaryVertexTracks();
210 Double_t x[3]; esdTrack->GetXYZ(x);
211 Double_t b[3]; AliTracker::GetBxByBz(x,b);
212 Bool_t isOK = kFALSE;
213 if(fabs(b[2])>0.000001)
214 isOK = esdTrack->RelateToVertexTPCBxByBz(vtxESD, b, kVeryBig);
215 // Bool_t isOK = esdTrack->RelateToVertexTPCBxByBz(vtxESD, b, kVeryBig);
219 // JMT -- recaluclate DCA for HLT if not present
220 if ( dca[0] == 0. && dca[1] == 0. ) {
221 track->GetDZ( vtxESD->GetX(), vtxESD->GetY(), vtxESD->GetZ(), esdEvent->GetMagneticField(), dca );
226 // get external param. at inner TPC wall
227 const AliExternalTrackParam *innerParam = esdTrack->GetInnerParam();
228 if(!innerParam) return;
230 Float_t dca[2], cov[3]; // dca_xy, dca_z, sigma_xy, sigma_xy_z, sigma_z
231 esdTrack->GetImpactParametersTPC(dca,cov);
233 if((esdTrack->GetStatus()&AliESDtrack::kTPCrefit)==0) return; // TPC refit
238 Double_t dcaToVertex = -1;
239 if( fCutsRC->GetDCAToVertex2D() )
241 dcaToVertex = TMath::Sqrt(dca[0]*dca[0]/fCutsRC->GetMaxDCAToVertexXY()/fCutsRC->GetMaxDCAToVertexXY() + dca[1]*dca[1]/fCutsRC->GetMaxDCAToVertexZ()/fCutsRC->GetMaxDCAToVertexZ());
243 if(fCutsRC->GetDCAToVertex2D() && dcaToVertex > 1) return;
244 if(!fCutsRC->GetDCAToVertex2D() && TMath::Abs(dca[0]) > fCutsRC->GetMaxDCAToVertexXY()) return;
245 if(!fCutsRC->GetDCAToVertex2D() && TMath::Abs(dca[1]) > fCutsRC->GetMaxDCAToVertexZ()) return;
247 Float_t dedx = esdTrack->GetTPCsignal();
248 Int_t ncls = esdTrack->GetTPCNcls();
249 Int_t TPCSignalN = esdTrack->GetTPCsignalN();
250 Float_t nCrossedRows = esdTrack->GetTPCClusterInfo(2,1);
253 Double_t pt = innerParam->Pt();
254 Double_t lam = TMath::ATan2(innerParam->Pz(),innerParam->Pt());
255 Double_t p = pt/TMath::Cos(lam);
256 //Double_t alpha = innerParam->GetAlpha();
257 Double_t phi = TMath::ATan2(innerParam->Py(),innerParam->Px());
258 //if(phi<0.) phi += 2.*TMath::Phi();
259 Double_t y = innerParam->GetY();
260 Double_t z = innerParam->GetZ();
261 Double_t snp = innerParam->GetSnp();
262 Double_t tgl = innerParam->GetTgl();
264 //Double_t vDeDxHisto[8] = {dedx,alpha,y,z,snp,tgl,ncls,p};
265 Double_t vDeDxHisto[10] = {dedx,phi,y,z,snp,tgl,ncls,p,TPCSignalN,nCrossedRows};
266 fDeDxHisto->Fill(vDeDxHisto);
271 //_____________________________________________________________________________
272 void AliPerformanceDEdx::ProcessTPCITS(AliStack* const /*stack*/, AliESDtrack *const /*esdTrack*/)
274 // Fill dE/dx comparison information
276 AliDebug(AliLog::kWarning, "Warning: Not implemented");
279 //_____________________________________________________________________________
280 void AliPerformanceDEdx::ProcessConstrained(AliStack* const /*stack*/, AliESDtrack *const /*esdTrack*/)
282 // Fill dE/dx comparison information
284 AliDebug(AliLog::kWarning, "Warning: Not implemented");
287 //_____________________________________________________________________________
288 Long64_t AliPerformanceDEdx::Merge(TCollection* const list)
290 // Merge list of objects (needed by PROOF)
298 Bool_t merge = ((fgUseMergeTHnSparse && fgMergeTHnSparse) || (!fgUseMergeTHnSparse && fMergeTHnSparseObj));
300 TIterator* iter = list->MakeIterator();
302 TObjArray* objArrayList = 0;
303 objArrayList = new TObjArray();
305 // collection of generated histograms
307 while((obj = iter->Next()) != 0)
309 AliPerformanceDEdx* entry = dynamic_cast<AliPerformanceDEdx*>(obj);
310 if (entry == 0) continue;
312 if ((fDeDxHisto) && (entry->fDeDxHisto)) { fDeDxHisto->Add(entry->fDeDxHisto); }
314 // the analysisfolder is only merged if present
315 if (entry->fFolderObj) { objArrayList->Add(entry->fFolderObj); }
319 if (fFolderObj) { fFolderObj->Merge(objArrayList); }
320 // to signal that track histos were not merged: reset
321 if (!merge) { fDeDxHisto->Reset(); }
323 if (objArrayList) delete objArrayList; objArrayList=0;
328 //_____________________________________________________________________________
329 void AliPerformanceDEdx::Exec(AliMCEvent* const mcEvent, AliESDEvent *const esdEvent, AliESDfriend *const esdFriend, const Bool_t bUseMC, const Bool_t bUseESDfriend)
331 // Process comparison information
335 AliDebug(AliLog::kError, "esdEvent not available");
338 AliHeader* header = 0;
339 AliGenEventHeader* genHeader = 0;
346 AliDebug(AliLog::kError, "mcEvent not available");
350 // get MC event header
351 header = mcEvent->Header();
353 AliDebug(AliLog::kError, "Header not available");
357 stack = mcEvent->Stack();
359 AliDebug(AliLog::kError, "Stack not available");
364 genHeader = header->GenEventHeader();
366 AliDebug(AliLog::kError, "Could not retrieve genHeader from Header");
369 genHeader->PrimaryVertex(vtxMC);
376 AliDebug(AliLog::kError, "esdFriend not available");
382 if(!bUseMC && GetTriggerClass()) {
383 Bool_t isEventTriggered = esdEvent->IsTriggerClassFired(GetTriggerClass());
384 if(!isEventTriggered) return;
388 const AliESDVertex *vtxESD = NULL;
389 if( IsUseTrackVertex() )
392 vtxESD = esdEvent->GetPrimaryVertexTracks();
396 vtxESD = esdEvent->GetPrimaryVertexTPC();
398 if(vtxESD && (vtxESD->GetStatus()<=0)) return;
401 for (Int_t iTrack = 0; iTrack < esdEvent->GetNumberOfTracks(); iTrack++)
403 AliESDtrack *track = esdEvent->GetTrack(iTrack);
406 if(GetAnalysisMode() == 0) ProcessTPC(stack,track);
407 else if(GetAnalysisMode() == 1) ProcessTPCITS(stack,track);
408 else if(GetAnalysisMode() == 2) ProcessConstrained(stack,track);
409 else if(GetAnalysisMode() == 3) ProcessInnerTPC(stack,track,esdEvent);
411 printf("ERROR: AnalysisMode %d \n",fAnalysisMode);
417 //_____________________________________________________________________________
418 void AliPerformanceDEdx::Analyse()
420 // Analyze comparison information and store output histograms
421 // in the folder "folderDEdx"
423 TH1::AddDirectory(kFALSE);
424 TH1::SetDefaultSumw2(kFALSE);
427 TObjArray *aFolderObj = new TObjArray;
433 for(Int_t i=1; i<10; i++) {
434 AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, i);
437 AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, 6, 7);
438 AddProjection(aFolderObj, "dedx", fDeDxHisto, 7, 8, 9);
439 AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, 8, 9);
440 AddProjection(aFolderObj, "dedx", fDeDxHisto, 6, 8, 9);
442 // resolution histograms for mips
443 //dedx:phi:y:z:snp:tgl:ncls:p
444 fDeDxHisto->GetAxis(2)->SetRangeUser(-15.,14.999);
445 fDeDxHisto->GetAxis(3)->SetRangeUser(-120.,119.999);
446 fDeDxHisto->GetAxis(4)->SetRangeUser(-0.4, 0.399);
447 fDeDxHisto->GetAxis(5)->SetRangeUser(-0.9,0.89);
448 fDeDxHisto->GetAxis(6)->SetRangeUser(60.,160.);
449 fDeDxHisto->GetAxis(7)->SetRangeUser(0.4,0.499);
450 fDeDxHisto->GetAxis(8)->SetRangeUser(60.,160.);
453 selString = "mipsres";
454 AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, &selString);
457 TObjArray *arr[9] = {0};
460 for(Int_t i=0; i<9; i++)
462 arr[i] = new TObjArray;
463 f1[i] = new TF1("gaus","gaus");
464 //printf("i %d \n",i);
466 h2D = (TH2F*)fDeDxHisto->Projection(0,i+1);
468 f1[i]->SetRange(40,60); // should be pion peak
469 h2D->FitSlicesY(f1[i],0,-1,10,"QNR",arr[i]); // gaus fit of pion peak
471 h1D = (TH1F*)arr[i]->At(1);
472 snprintf(name,256,"mean_dedx_mips_vs_%d",i);
474 snprintf(title,256,"%s vs %s","mean_dedx_mips (a.u.)",fDeDxHisto->GetAxis(i)->GetTitle());
475 h1D->SetTitle(title);
476 h1D->GetXaxis()->SetTitle(fDeDxHisto->GetAxis(i)->GetTitle());
477 h1D->GetYaxis()->SetTitle("mean_dedx_mips (a.u.)");
478 //h1D->SetMinimum(40);
479 //h1D->SetMaximum(60);
481 aFolderObj->Add(h1D);
483 h1D = (TH1F*)arr[i]->At(2);
484 snprintf(name,256,"res_dedx_mips_vs_%d",i);
486 snprintf(title,256,"%s vs %s","res_dedx_mips (a.u)",fDeDxHisto->GetAxis(i)->GetTitle());
487 h1D->SetTitle(title);
488 h1D->GetXaxis()->SetTitle(fDeDxHisto->GetAxis(i)->GetTitle());
489 h1D->GetYaxis()->SetTitle("res_dedx_mips (a.u.)");
490 //h1D->SetMinimum(0);
491 //h1D->SetMaximum(6);
493 aFolderObj->Add(h1D);
496 // select MIPs (version from AliTPCPerfomanceSummary)
497 fDeDxHisto->GetAxis(0)->SetRangeUser(35,60);
498 fDeDxHisto->GetAxis(2)->SetRangeUser(-20,20);
499 fDeDxHisto->GetAxis(3)->SetRangeUser(-250,250);
500 fDeDxHisto->GetAxis(4)->SetRangeUser(-1, 1);
501 fDeDxHisto->GetAxis(5)->SetRangeUser(-1,1);
502 fDeDxHisto->GetAxis(6)->SetRangeUser(80,160);
503 fDeDxHisto->GetAxis(7)->SetRangeUser(0.4,0.55);
504 fDeDxHisto->GetAxis(8)->SetRangeUser(80,160);
505 fDeDxHisto->GetAxis(9)->SetRangeUser(0.5,1.);
508 AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, &selString);
510 selString = "mips_C";
511 fDeDxHisto->GetAxis(5)->SetRangeUser(-3,0);
512 AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, 5, &selString);
513 AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, 1, &selString);
515 selString = "mips_A";
516 fDeDxHisto->GetAxis(5)->SetRangeUser(0,3);
517 AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, 5, &selString);
518 AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, 1, &selString);
521 fDeDxHisto->GetAxis(0)->SetRangeUser(0,300);
522 fDeDxHisto->GetAxis(2)->SetRangeUser(-20,20);
523 fDeDxHisto->GetAxis(3)->SetRangeUser(-250,250);
524 fDeDxHisto->GetAxis(4)->SetRangeUser(-1, 1);
525 fDeDxHisto->GetAxis(5)->SetRangeUser(-3,3);
526 fDeDxHisto->GetAxis(6)->SetRangeUser(0,160);
527 fDeDxHisto->GetAxis(7)->SetRangeUser(1e-2,10);
528 fDeDxHisto->GetAxis(8)->SetRangeUser(0,160);
529 fDeDxHisto->GetAxis(9)->SetRangeUser(0.,1.);
534 printf("exportToFolder\n");
535 // export objects to analysis folder
536 fAnalysisFolder = ExportToFolder(aFolderObj);
537 if (fFolderObj) delete fFolderObj;
538 fFolderObj = aFolderObj;
542 for(Int_t i=0;i<9;i++) {
543 if(f1[i]) delete f1[i]; f1[i]=0;
548 //_____________________________________________________________________________
549 TFolder* AliPerformanceDEdx::ExportToFolder(TObjArray * array)
551 // recreate folder avery time and export objects to new one
553 AliPerformanceDEdx * comp=this;
554 TFolder *folder = comp->GetAnalysisFolder();
557 TFolder *newFolder = 0;
559 Int_t size = array->GetSize();
562 // get name and title from old folder
563 name = folder->GetName();
564 title = folder->GetTitle();
570 newFolder = CreateFolder(name.Data(),title.Data());
571 newFolder->SetOwner();
573 // add objects to folder
575 newFolder->Add(array->At(i));
584 //_____________________________________________________________________________
585 TFolder* AliPerformanceDEdx::CreateFolder(TString name,TString title) {
586 // create folder for analysed histograms
588 folder = new TFolder(name.Data(),title.Data());
593 //_____________________________________________________________________________
594 TTree* AliPerformanceDEdx::CreateSummary()
596 // implementaion removed, switched back to use AliPerformanceSummary (now called in AliPerformanceTask)