1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
16 //The design of this class is based on the AliFMDParameters class. Its purpose
17 //is to hold parameters for the analysis such as background correction and
20 //Author: Hans Hjersing Dalsgaard, NBI, hans.dalsgaard@cern.ch
23 #include "AliFMDDebug.h" // ALILOG_H
24 #include "AliFMDAnaParameters.h" // ALIFMDPARAMETERS_H
25 //#include <AliCDBManager.h> // ALICDBMANAGER_H
26 //#include <AliCDBEntry.h> // ALICDBMANAGER_H
27 //#include "AliFMDRing.h"
29 #include <Riostream.h>
35 #include "AliTriggerAnalysis.h"
36 #include "AliPhysicsSelection.h"
37 #include "AliBackgroundSelection.h"
38 #include "AliMultiplicity.h"
39 #include "AliESDEvent.h"
40 #include "AliESDVertex.h"
42 //====================================================================
43 ClassImp(AliFMDAnaParameters)
45 ; // This is here to keep Emacs for indenting the next line
48 //const char* AliFMDAnaParameters::fgkBackgroundCorrection = "FMD/Correction/Background";
49 //const char* AliFMDAnaParameters::fgkEnergyDists = "FMD/Correction/EnergyDistribution";
50 const char* AliFMDAnaParameters::fgkBackgroundID = "background";
51 const char* AliFMDAnaParameters::fgkEnergyDistributionID = "energydistributions";
52 const char* AliFMDAnaParameters::fgkEventSelectionEffID = "eventselectionefficiency";
53 const char* AliFMDAnaParameters::fgkSharingEffID = "sharingefficiency";
54 //____________________________________________________________________
55 AliFMDAnaParameters* AliFMDAnaParameters::fgInstance = 0;
57 //____________________________________________________________________
60 AliFMDAnaParameters::Instance()
62 // Get static instance
63 if (!fgInstance) fgInstance = new AliFMDAnaParameters;
67 //____________________________________________________________________
68 AliFMDAnaParameters::AliFMDAnaParameters() :
71 fEnergyDistribution(0),
72 fEventSelectionEfficiency(0),
73 fSharingEfficiency(0),
74 fCorner1(4.2231, 26.6638),
75 fCorner2(1.8357, 27.9500),
76 fEnergyPath("$ALICE_ROOT/PWG2/FORWARD/corrections/EnergyDistribution"),
77 fBackgroundPath("$ALICE_ROOT/PWG2/FORWARD/corrections/Background"),
78 fEventSelectionEffPath("$ALICE_ROOT/PWG2/FORWARD/corrections/EventSelectionEfficiency"),
79 fSharingEffPath("$ALICE_ROOT/PWG2/FORWARD/corrections/SharingEfficiency"),
80 fProcessPrimary(kFALSE),
89 fSPDhighLimit(999999999),
90 fCentralSelection(kFALSE),
91 fSharingObjectPresent(kTRUE),
92 fNumberOfEtaBinsToCut(1),
96 // Default constructor
97 fPhysicsSelection = new AliPhysicsSelection;
98 AliBackgroundSelection* backgroundSelection = new AliBackgroundSelection("bg","bg");
100 fPhysicsSelection->AddBackgroundIdentification(backgroundSelection);
101 //fPhysicsSelection->Initialize(104792);
102 // Do not use this - it is only for IO
106 //____________________________________________________________________
107 char* AliFMDAnaParameters::GetPath(const char* species) {
111 if(species == fgkBackgroundID)
112 path = Form("%s/%s_%d_%d_%d_%d_%d_%d.root",
113 fBackgroundPath.Data(),
121 if(species == fgkEnergyDistributionID)
122 path = Form("%s/%s_%d_%d_%d_%d_%d_%d.root",
124 fgkEnergyDistributionID,
131 if(species == fgkEventSelectionEffID)
132 path = Form("%s/%s_%d_%d_%d_%d_%d_%d.root",
133 fEventSelectionEffPath.Data(),
134 fgkEventSelectionEffID,
141 if(species == fgkSharingEffID)
142 path = Form("%s/%s_%d_%d_%d_%d_%d_%d.root",
143 fSharingEffPath.Data(),
154 //____________________________________________________________________
155 void AliFMDAnaParameters::Init(Bool_t forceReInit, UInt_t what)
157 // Initialize the parameters manager. We need to get stuff from files here.
159 if (forceReInit) fIsInit = kFALSE;
161 if (what & kBackgroundCorrection) InitBackground();
162 if (what & kEnergyDistributions) InitEnergyDists();
163 if (what & kEventSelectionEfficiency) InitEventSelectionEff();
164 if (what & kSharingEfficiency) InitSharingEff();
173 //____________________________________________________________________
175 void AliFMDAnaParameters::InitBackground() {
176 //Init background correction objects.
178 TFile* fin = TFile::Open(GetPath(fgkBackgroundID));
182 fBackground = dynamic_cast<AliFMDAnaCalibBackgroundCorrection*>(fin->Get(fgkBackgroundID));
183 if (!fBackground) AliFatal("Invalid background object from CDB");
189 //____________________________________________________________________
191 void AliFMDAnaParameters::InitEnergyDists() {
192 //Init energy distributions
193 TFile* fin = TFile::Open(GetPath(fgkEnergyDistributionID));
197 fEnergyDistribution = dynamic_cast<AliFMDAnaCalibEnergyDistribution*>(fin->Get(fgkEnergyDistributionID));
199 if (!fEnergyDistribution) AliFatal("Invalid background object from CDB");
203 //____________________________________________________________________
205 void AliFMDAnaParameters::InitEventSelectionEff() {
206 //Init event selection objects
208 TFile* fin = TFile::Open(GetPath(fgkEventSelectionEffID));
212 fEventSelectionEfficiency = dynamic_cast<AliFMDAnaCalibEventSelectionEfficiency*>(fin->Get(fgkEventSelectionEffID));
213 if (!fEventSelectionEfficiency) AliFatal("Invalid background object from CDB");
217 //____________________________________________________________________
219 void AliFMDAnaParameters::InitSharingEff() {
221 fSharingObjectPresent = kTRUE;
222 TFile* fin = TFile::Open(GetPath(fgkSharingEffID));
225 fSharingObjectPresent = kFALSE;
229 fSharingEfficiency = dynamic_cast<AliFMDAnaCalibSharingEfficiency*>(fin->Get(fgkSharingEffID));
230 if (!fSharingEfficiency) {
231 fSharingObjectPresent = kFALSE;
236 //____________________________________________________________________
237 void AliFMDAnaParameters::FindEtaLimits() {
239 fEtaLowBinLimits.SetBins(4,0,4,2,0,2,GetNvtxBins(),0,GetNvtxBins());
240 fEtaHighBinLimits.SetBins(4,0,4,2,0,2,GetNvtxBins(),0,GetNvtxBins());
241 for(Int_t det=0; det<=3;det++) {
242 Int_t nRings = (det<=1 ? 1 : 2);
243 for (UShort_t ir = 0; ir < nRings; ir++) {
244 Char_t ringChar = (ir == 0 ? 'I' : 'O');
245 for(Int_t v =0; v<GetNvtxBins(); v++) {
246 fEtaLowBinLimits.SetBinContent(det,ir,v,GetFirstEtaBinFromMap(v, det, ringChar));
247 fEtaHighBinLimits.SetBinContent(det,ir,v,GetLastEtaBinFromMap(v, det, ringChar));
248 //std::cout<<det<<" "<<ringChar<<" "<<fEtaLowBinLimits.GetBinContent(det,ir,v)<<" "<<fEtaHighBinLimits.GetBinContent(det,ir,v)<<std::endl;
254 //____________________________________________________________________
256 void AliFMDAnaParameters::PrintStatus() const
258 //Print current status
259 TString energystring;
262 energystring.Form("900 GeV"); break;
264 energystring.Form("7000 GeV"); break;
266 energystring.Form("10000 GeV"); break;
268 energystring.Form("14000 GeV"); break;
270 energystring.Form("invalid energy"); break;
272 TString triggerstring;
275 triggerstring.Form("Minimum bias 1"); break;
277 triggerstring.Form("Minimum bias 2"); break;
279 triggerstring.Form("SPD FAST OR"); break;
281 triggerstring.Form("NO TRIGGER TEST"); break;
283 energystring.Form("invalid trigger"); break;
288 magstring.Form("5 kGaus"); break;
290 magstring.Form("0 kGaus"); break;
292 magstring.Form("invalid mag field"); break;
294 TString collsystemstring;
297 collsystemstring.Form("p+p"); break;
299 collsystemstring.Form("Pb+Pb"); break;
301 collsystemstring.Form("invalid collision system"); break;
305 std::cout<<"Energy = "<<energystring.Data()<<std::endl;
306 std::cout<<"Trigger = "<<triggerstring.Data()<<std::endl;
307 std::cout<<"Mag Field = "<<magstring.Data()<<std::endl;
308 std::cout<<"Coll System = "<<collsystemstring.Data()<<std::endl;
314 //____________________________________________________________________
315 Float_t AliFMDAnaParameters::GetVtxCutZ() {
316 //Get the z vtx cut in analysis
318 AliWarning("Not initialized yet. Call Init() to remedy");
322 return fBackground->GetVtxCutZ();
325 //____________________________________________________________________
326 Int_t AliFMDAnaParameters::GetNvtxBins() {
327 //Get number of vtx bins
329 AliWarning("Not initialized yet. Call Init() to remedy");
333 return fBackground->GetNvtxBins();
335 //____________________________________________________________________
336 TH1F* AliFMDAnaParameters::GetEnergyDistribution(Int_t det, Char_t ring, Float_t eta) {
338 return fEnergyDistribution->GetEnergyDistribution(det, ring, eta);
340 //____________________________________________________________________
341 TH1F* AliFMDAnaParameters::GetEmptyEnergyDistribution(Int_t det, Char_t ring) {
343 return fEnergyDistribution->GetEmptyEnergyDistribution(det, ring);
345 //____________________________________________________________________
346 TH1F* AliFMDAnaParameters::GetRingEnergyDistribution(Int_t det, Char_t ring) {
348 return fEnergyDistribution->GetRingEnergyDistribution(det, ring);
350 //____________________________________________________________________
351 Float_t AliFMDAnaParameters::GetSigma(Int_t det, Char_t ring, Float_t eta) {
352 //Get sigma of Landau fits
354 AliWarning("Not initialized yet. Call Init() to remedy");
358 TH1F* hEnergyDist = GetEnergyDistribution(det,ring, eta);
359 TF1* fitFunc = hEnergyDist->GetFunction("FMDfitFunc");
361 //AliWarning(Form("No function for FMD%d%c, eta %f",det,ring,eta));
364 Float_t sigma = fitFunc->GetParameter(2);
369 //____________________________________________________________________
370 Float_t AliFMDAnaParameters::GetMPV(Int_t det, Char_t ring, Float_t eta) {
371 //Get MPV of landau fits
373 AliWarning("Not initialized yet. Call Init() to remedy");
376 //AliFMDAnaParameters* pars = AliFMDAnaParameters::Instance();
377 TH1F* hEnergyDist = GetEnergyDistribution(det,ring,eta);
378 TF1* fitFunc = hEnergyDist->GetFunction("FMDfitFunc");
381 AliWarning(Form("No function for FMD%d%c, eta %f",det,ring,eta));
382 std::cout<<hEnergyDist->GetEntries()<<" "<<GetEtaBin(eta)<<std::endl;
386 Float_t mpv = fitFunc->GetParameter(1);
389 //____________________________________________________________________
390 Float_t AliFMDAnaParameters::GetConstant(Int_t det, Char_t ring, Float_t eta) {
391 //Get constant parameter of Landau fits
393 AliWarning("Not initialized yet. Call Init() to remedy");
397 TH1F* hEnergyDist = GetEnergyDistribution(det,ring,eta);
398 TF1* fitFunc = hEnergyDist->GetFunction("FMDfitFunc");
400 AliWarning(Form("No function for FMD%d%c, eta %f",det,ring,eta));
404 Float_t mpv = fitFunc->GetParameter(0);
407 //____________________________________________________________________
408 Float_t AliFMDAnaParameters::Get2MIPWeight(Int_t det, Char_t ring, Float_t eta) {
409 //Get 2 MIP weights of convoluted Landau fits
411 AliWarning("Not initialized yet. Call Init() to remedy");
415 TH1F* hEnergyDist = GetEnergyDistribution(det,ring,eta);
416 TF1* fitFunc = hEnergyDist->GetFunction("FMDfitFunc");
417 if(!fitFunc) return 0;
418 Float_t twoMIPweight = fitFunc->GetParameter(3);
422 if(twoMIPweight < 1e-05)
427 //____________________________________________________________________
428 Float_t AliFMDAnaParameters::Get3MIPWeight(Int_t det, Char_t ring, Float_t eta) {
429 //Get 3 MIP weights of convoluted Landau fits
431 AliWarning("Not initialized yet. Call Init() to remedy");
435 TH1F* hEnergyDist = GetEnergyDistribution(det,ring,eta);
436 TF1* fitFunc = hEnergyDist->GetFunction("FMDfitFunc");
437 if(!fitFunc) return 0;
438 Float_t threeMIPweight = fitFunc->GetParameter(4);
440 if(threeMIPweight < 1e-05)
443 Float_t twoMIPweight = fitFunc->GetParameter(3);
445 if(twoMIPweight < 1e-05)
448 return threeMIPweight;
450 //____________________________________________________________________
451 Int_t AliFMDAnaParameters::GetNetaBins() {
452 return GetBackgroundCorrection(1,'I',5)->GetNbinsX();
455 //____________________________________________________________________
456 Float_t AliFMDAnaParameters::GetEtaMin() {
458 return GetBackgroundCorrection(1,'I',5)->GetXaxis()->GetXmin();
460 //____________________________________________________________________
461 Float_t AliFMDAnaParameters::GetEtaMax() {
463 return GetBackgroundCorrection(1,'I',5)->GetXaxis()->GetXmax();
466 //____________________________________________________________________
467 Int_t AliFMDAnaParameters::GetEtaBin(Float_t eta) {
469 TAxis testaxis(GetNetaBins(),GetEtaMin(),GetEtaMax());
470 Int_t binnumber = testaxis.FindBin(eta) ;
475 //____________________________________________________________________
477 TH2F* AliFMDAnaParameters::GetBackgroundCorrection(Int_t det,
480 //Get background correction histogram
482 AliWarning("Not initialized yet. Call Init() to remedy");
488 if(vtxbin > fBackground->GetNvtxBins()) {
489 AliWarning(Form("No background object for vertex bin %d", vtxbin));
493 return fBackground->GetBgCorrection(det,ring,vtxbin);
495 //____________________________________________________________________
497 TH1F* AliFMDAnaParameters::GetDoubleHitCorrection(Int_t det,
499 //Get correction for several hits in strips for p+p
501 AliWarning("Not initialized yet. Call Init() to remedy");
505 return fBackground->GetDoubleHitCorrection(det,ring);
507 //_____________________________________________________________________
508 TH1F* AliFMDAnaParameters::GetSPDDeadCorrection(Int_t vtxbin) {
510 //Get correction for several hits in strips for p+p
512 AliWarning("Not initialized yet. Call Init() to remedy");
516 return fBackground->GetSPDDeadCorrection(vtxbin);
518 //_____________________________________________________________________
519 Float_t AliFMDAnaParameters::GetEventSelectionEfficiency(Int_t vtxbin) {
520 //Get event selection efficiency object
522 AliWarning("Not initialized yet. Call Init() to remedy");
525 return fEventSelectionEfficiency->GetCorrection(vtxbin);
528 //_____________________________________________________________________
529 Float_t AliFMDAnaParameters::GetVtxSelectionEffFromMC() {
532 AliWarning("Not initialized yet. Call Init() to remedy");
535 return fEventSelectionEfficiency->GetVtxToTriggerRatio();
539 //_____________________________________________________________________
540 TH2F* AliFMDAnaParameters::GetEventSelectionEfficiency(Int_t vtxbin, Char_t ring) {
541 //Get event selection efficiency object
543 AliWarning("Not initialized yet. Call Init() to remedy");
546 return fEventSelectionEfficiency->GetCorrection(vtxbin,ring);
549 //_____________________________________________________________________
550 TH1F* AliFMDAnaParameters::GetSharingEfficiency(Int_t det, Char_t ring, Int_t vtxbin) {
551 //Get sharing efficiency object
553 AliWarning("Not initialized yet. Call Init() to remedy");
557 return fSharingEfficiency->GetSharingEff(det,ring,vtxbin);
560 //_____________________________________________________________________
561 TH1F* AliFMDAnaParameters::GetSharingEfficiencyTrVtx(Int_t det, Char_t ring, Int_t vtxbin) {
562 //Get sharing efficiency object TrVtx
564 AliWarning("Not initialized yet. Call Init() to remedy");
568 return fSharingEfficiency->GetSharingEffTrVtx(det,ring,vtxbin);
571 //_____________________________________________________________________
572 Float_t AliFMDAnaParameters::GetMaxR(Char_t ring) const {
580 AliWarning("Unknown ring - must be I or O!");
584 //_____________________________________________________________________
585 Float_t AliFMDAnaParameters::GetMinR(Char_t ring) const{
593 AliWarning("Unknown ring - must be I or O!");
598 //_____________________________________________________________________
599 void AliFMDAnaParameters::SetCorners(Char_t ring) {
600 //Set corners (taken from nominal geometry)
602 fCorner1.Set(4.9895, 15.3560);
603 fCorner2.Set(1.8007, 17.2000);
606 fCorner1.Set(4.2231, 26.6638);
607 fCorner2.Set(1.8357, 27.9500);
611 //_____________________________________________________________________
612 Float_t AliFMDAnaParameters::GetPhiFromSector(UShort_t det, Char_t ring, UShort_t sec) const
614 //Get phi from sector
615 Int_t nsec = (ring == 'I' ? 20 : 40);
618 basephi = 1.72787594;
619 if(det == 2 && ring == 'I')
620 basephi = 0.15707963;
621 if(det == 2 && ring == 'O')
622 basephi = 0.078539818;
623 if(det == 3 && ring == 'I')
624 basephi = 2.984513044;
625 if(det == 3 && ring == 'O')
626 basephi = 3.06305289;
628 Float_t step = 2*TMath::Pi() / nsec;
631 phi = basephi - sec*step;
633 phi = basephi + sec*step;
636 phi = phi +2*TMath::Pi();
637 if(phi > 2*TMath::Pi() )
638 phi = phi - 2*TMath::Pi();
642 //_____________________________________________________________________
643 Float_t AliFMDAnaParameters::GetEtaFromStrip(UShort_t det, Char_t ring, UShort_t sec, UShort_t strip, Float_t zvtx) const
645 //Calculate eta from strip with vertex (redundant with AliESDFMD::Eta)
646 Float_t rad = GetMaxR(ring)-GetMinR(ring);
647 Float_t nStrips = (ring == 'I' ? 512 : 256);
648 Float_t segment = rad / nStrips;
649 Float_t r = GetMinR(ring) + segment*strip;
651 Int_t hybrid = sec / 2;
654 if(!(hybrid%2)) z = 320.266; else z = 319.766;
656 if(det == 2 && ring == 'I' ) {
657 if(!(hybrid%2)) z = 83.666; else z = 83.166;
659 if(det == 2 && ring == 'O' ) {
660 if(!(hybrid%2)) z = 74.966; else z = 75.466;
662 if(det == 3 && ring == 'I' ) {
663 if(!(hybrid%2)) z = -63.066; else z = -62.566;
665 if(det == 3 && ring == 'O' ) {
666 if(!(hybrid%2)) z = -74.966; else z = -75.466;
669 //std::cout<<det<<" "<<ring<<" "<<sec<<" "<<hybrid<<" "<<z<<std::endl;
671 // Float_t r = TMath::Sqrt(TMath::Power(x,2)+TMath::Power(y,2));
672 Float_t theta = TMath::ATan2(r,z-zvtx);
673 Float_t eta = -1*TMath::Log(TMath::Tan(0.5*theta));
678 //_____________________________________________________________________
680 Bool_t AliFMDAnaParameters::GetVertex(const AliESDEvent* esd, Double_t* vertexXYZ)
682 //Get the vertex from the ESD
683 const AliESDVertex* vertex = 0;
684 vertex = esd->GetPrimaryVertexSPD();
687 vertex->GetXYZ(vertexXYZ);
689 //if(vertexXYZ[0] == 0 || vertexXYZ[1] == 0 )
692 if(vertex->GetNContributors() <= 0)
695 if(vertex->GetZRes() > 0.1 )
698 return vertex->GetStatus();
701 //____________________________________________________________________
702 Bool_t AliFMDAnaParameters::IsEventTriggered(const AliESDEvent *esd, Trigger trig) {
703 //Did we have trig trigger ?
704 Trigger old = fTrigger;
706 Bool_t retval = IsEventTriggered(esd);
711 //____________________________________________________________________
712 Bool_t AliFMDAnaParameters::IsEventTriggered(const AliESDEvent *esd) const {
713 // check if the event was triggered
715 if (fCentralSelection) return kTRUE;
716 ULong64_t triggerMask = esd->GetTriggerMask();
718 TString triggers = esd->GetFiredTriggerClasses();
720 //if(triggers.Contains("CINT1B-ABCE-NOPF-ALL") || triggers.Contains("CINT1B-E-NOPF-ALL")) return kTRUE;
721 //else return kFALSE;
722 //if(triggers.Contains("CINT1B-E-NOPF-ALL")) return kFALSE;
724 // if(triggers.Contains("CINT1A-ABCE-NOPF-ALL")) return kFALSE;
725 // if(triggers.Contains("CINT1C-ABCE-NOPF-ALL")) return kFALSE;
727 // definitions from p-p.cfg
728 ULong64_t spdFO = (1 << 14);
729 ULong64_t v0left = (1 << 11);
730 ULong64_t v0right = (1 << 12);
731 AliTriggerAnalysis tAna;
733 //REMOVE WHEN FINISHED PLAYING WITH TRIGGERS!
734 //fPhysicsSelection->IsCollisionCandidate(esd);
736 fPhysicsSelection->SetAnalyzeMC(kTRUE);
741 if( fPhysicsSelection->IsCollisionCandidate(esd))
745 // if (triggerMask & spdFO || ((triggerMask & v0left) || (triggerMask & v0right)))
751 if (triggerMask & spdFO && ((triggerMask & v0left) || (triggerMask & v0right)))
756 if (triggerMask & spdFO)
766 const AliMultiplicity* testmult = esd->GetMultiplicity();
767 Int_t nTrackLets = testmult->GetNumberOfTracklets();
768 Int_t nClusters = testmult->GetNumberOfSingleClusters();
769 Int_t fastOR = tAna.SPDFiredChips(esd, 0);
771 const AliESDVertex* vertex = 0;
772 vertex = esd->GetPrimaryVertexSPD();
773 Bool_t vtxstatus = vertex->GetStatus();
774 if(vertex->GetNContributors() <= 0)
777 if(vertex->GetZRes() > 0.1 )
780 Bool_t v0ABG = tAna.IsOfflineTriggerFired(esd, AliTriggerAnalysis::kV0ABG);
782 Bool_t v0CBG = tAna.IsOfflineTriggerFired(esd, AliTriggerAnalysis::kV0CBG);
783 Bool_t v0A = tAna.IsOfflineTriggerFired(esd, AliTriggerAnalysis::kV0A);
784 Bool_t v0C = tAna.IsOfflineTriggerFired(esd, AliTriggerAnalysis::kV0C);*/
785 // if(triggers.Contains("CINT1A-ABCE-NOPF-ALL") || triggers.Contains("CINT1C-ABCE-NOPF-ALL"))
786 if(triggers.Contains("CBEAMB-ABCE-NOPF-ALL"))
796 //____________________________________________________________________
798 AliFMDAnaParameters::GetStripLength(Char_t ring, UShort_t strip)
800 //Get length of a strip
802 Float_t rad = GetMaxR(ring)-GetMinR(ring);
803 Float_t nStrips = (ring == 'I' ? 512 : 256);
804 Float_t segment = rad / nStrips;
806 //TVector2* corner1 = fmdring.GetVertex(2);
807 // TVector2* corner2 = fmdring.GetVertex(3);
811 std::cout<<GetMaxR(ring)<<" "<<fmdring.GetMaxR()<<std::endl;
812 std::cout<<GetMinR(ring)<<" "<<fmdring.GetMinR()<<std::endl;
813 std::cout<<corner1->X()<<" "<<fCorner1.X()<<std::endl;
814 std::cout<<corner2->X()<<" "<<fCorner2.X()<<std::endl;
815 std::cout<<corner1->Y()<<" "<<fCorner1.Y()<<std::endl;
816 std::cout<<corner2->Y()<<" "<<fCorner2.Y()<<std::endl;*/
817 Float_t slope = (fCorner1.Y() - fCorner2.Y()) / (fCorner1.X() - fCorner2.X());
818 Float_t constant = (fCorner2.Y()*fCorner1.X()-(fCorner2.X()*fCorner1.Y())) / (fCorner1.X() - fCorner2.X());
819 Float_t radius = GetMinR(ring) + strip*segment;
821 Float_t d = TMath::Power(TMath::Abs(radius*slope),2) + TMath::Power(radius,2) - TMath::Power(constant,2);
823 Float_t arclength = GetBaseStripLength(ring,strip);
826 Float_t x = (-1*TMath::Sqrt(d) -slope*constant) / (1+TMath::Power(slope,2));
827 Float_t y = slope*x + constant;
828 Float_t theta = TMath::ATan2(x,y);
830 if(x < fCorner1.X() && y > fCorner1.Y()) {
831 arclength = radius*theta; //One sector since theta is by definition half-hybrid
841 //____________________________________________________________________
843 AliFMDAnaParameters::GetBaseStripLength(Char_t ring, UShort_t strip)
845 //Get length of strip assuming that corners are not cut away
846 Float_t rad = GetMaxR(ring)-GetMinR(ring);
847 Float_t nStrips = (ring == 'I' ? 512 : 256);
848 Float_t nSec = (ring == 'I' ? 20 : 40);
849 Float_t segment = rad / nStrips;
850 Float_t basearc = 2*TMath::Pi() / (0.5*nSec); // One hybrid: 36 degrees inner, 18 outer
851 Float_t radius = GetMinR(ring) + strip*segment;
852 Float_t basearclength = 0.5*basearc * radius; // One sector
854 return basearclength;
856 //____________________________________________________________________
857 Int_t AliFMDAnaParameters::GetFirstEtaBinFromMap(Int_t vtxbin, Int_t det, Char_t ring)
859 TH2F* hBg = GetBackgroundCorrection(det,ring,vtxbin);
861 if(det == 0) return hBg->GetXaxis()->FindBin(-1.95);
864 Int_t nNonZeroFirst = 0;
866 for(Int_t i=1;i<=hBg->GetNbinsX();i++) {
867 if(nNonZeroFirst == fNumberOfEtaBinsToCut && firstbin==-1) firstbin = i;
869 for(Int_t j=1;j<=hBg->GetNbinsY();j++) {
871 Float_t value = hBg->GetBinContent(i,j);
873 if(value > 0.001 && nNonZeroFirst<fNumberOfEtaBinsToCut)
874 {nNonZeroFirst++; break;}
883 //____________________________________________________________________
884 Int_t AliFMDAnaParameters::GetLastEtaBinFromMap(Int_t vtxbin, Int_t det, Char_t ring)
886 TH2F* hBg = GetBackgroundCorrection(det,ring,vtxbin);
888 Int_t nNonZeroLast = 0;
890 if(det == 0) return hBg->GetXaxis()->FindBin(1.95);
892 for(Int_t i=hBg->GetNbinsX();i>0;i--) {
893 if(nNonZeroLast == fNumberOfEtaBinsToCut && lastbin==-1) lastbin = i;
895 for(Int_t j=1;j<=hBg->GetNbinsY();j++) {
897 Float_t value = hBg->GetBinContent(i,j);
899 if(value > 0.001 && nNonZeroLast<fNumberOfEtaBinsToCut)
900 {nNonZeroLast++; break; }
909 //____________________________________________________________________
910 Int_t AliFMDAnaParameters::GetFirstEtaBinToInclude(Int_t vtxbin, Int_t det, Char_t ring)
912 Int_t ringNumber = (ring == 'I' ? 0 : 1);
913 return fEtaLowBinLimits.GetBinContent(det,ringNumber,vtxbin);
917 //____________________________________________________________________
918 Int_t AliFMDAnaParameters::GetLastEtaBinToInclude(Int_t vtxbin, Int_t det, Char_t ring)
920 Int_t ringNumber = (ring == 'I' ? 0 : 1);
921 return fEtaHighBinLimits.GetBinContent(det,ringNumber,vtxbin);
924 //____________________________________________________________________