2 // Main author: Davide Caffarri 2009
4 /**************************************************************************
5 * Copyright(c) 1998-2008, ALICE Experiment at CERN, all rights reserved. *
6 * See http://aliceinfo.cern.ch/Offline/AliRoot/License.html for *
7 * full copyright notice. *
8 **************************************************************************/
9 #if !defined(__CINT__) || defined(__MAKECINT__)
10 #include <TClonesArray.h>
13 #include <TEveVSDStructs.h>
14 #include <TEveTrackPropagator.h>
15 #include <TEvePointSet.h>
16 #include <TEveManager.h>
19 #include <AliExternalTrackParam.h>
20 #include <AliVVertex.h>
21 #include <AliAODVertex.h>
22 #include <AliAODEvent.h>
23 #include <AliAODTrack.h>
24 #include <AliAODMCParticle.h>
25 #include <AliESDtrack.h>
26 #include <AliESDEvent.h>
27 #include <PWGHF/vertexingHF/AliAODRecoDecayHF.h>
28 #include <PWGHF/vertexingHF/AliAODRecoDecayHF2Prong.h>
29 #include <PWGHF/vertexingHF/macros/LoadLibraries.C>
31 #include <AliEveEventManager.h>
33 class AliAODRecoDecayHF;
36 void aod_hf_init_rectrack(TEveRecTrack& rt, AliExternalTrackParam* tp)
38 Double_t pbuf[3], vbuf[3];
39 rt.fSign = tp->GetSign();
40 tp->GetXYZ(vbuf); rt.fV.Set(vbuf);
41 tp->GetPxPyPz(pbuf); rt.fP.Set(pbuf);
42 // Double_t ep = at->GetP(), mc = at->GetMass();
43 rt.fBeta = 1; // ep/TMath::Sqrt(ep*ep + mc*mc);
47 AliEveHF* aod_make_HF(TEveTrackPropagator* rnrStyle, AliAODVertex* primAODVtx,
48 AliESDtrack* neg, AliESDtrack* pos, AliAODRecoDecayHF* rd, Int_t i)
56 p[0]=rd->PxProng(0); p[1]=rd->PyProng(0); p[2]=rd->PzProng(0);
58 p[0]=rd->PxProng(1); p[1]=rd->PyProng(1); p[2]=rd->PzProng(1);
61 p[0]=rd->Px(); p[1]=rd->Py(); p[2]=rd->Pz();
64 Double_t primVtx[3]={primAODVtx->GetX(), primAODVtx->GetY(), primAODVtx->GetZ()};
67 Double_t v[3] = {rd->Xv(),rd->Yv(),rd->Zv()};
68 printf("vertex %f %f %f\n",v[0],v[1],v[2]);
70 aod_hf_init_rectrack(rcNeg, neg);
71 //rcNeg.fIndex = v0->GetNindex();
72 aod_hf_init_rectrack(rcPos, pos);
73 //rcPos.fIndex = v0->GetPindex();
75 AliEveHF* myHF = new AliEveHF(&rcNeg, &rcPos, primVtx ,rd, rnrStyle);
76 myHF->SetElementName(Form("D0->Kpi %d", i));
77 myHF->SetElementTitle(Form("CosPointingAngle %f", rd->CosPointingAngle()));
82 AliEveHFList* aod_HF()
84 Bool_t useParFiles=kFALSE;
86 TEveUtil::LoadMacro("$ALICE_ROOT/PWGHF/vertexingHF/macros/LoadLibraries.C+");
87 LoadLibraries(useParFiles);
89 AliAODEvent* aod = AliEveEventManager::AssertAOD();
90 AliESDEvent* esd = AliEveEventManager::AssertESD();
93 gSystem->Load("libANALYSIS");
94 gSystem->Load("libANALYSISalice");
95 gSystem->Load("libCORRFW");
96 gSystem->Load("libPWG3base");
97 gSystem->Load("libPWG3vertexingHF");
101 TClonesArray *mcArray =
102 (TClonesArray*) aod->FindListObject(AliAODMCParticle::StdBranchName());
104 printf("MC particles branch not found!\n");
108 AliAODVertex* primVtx_aod = (AliAODVertex*) aod->GetPrimaryVertex();
109 // AliESDVertex *primVtx_esd = (AliESDVertex*) esd->GetPrimaryVertex();
111 AliEveHFList* cont = new AliEveHFList("AOD HF vertices");
112 cont->SetMainColor(2);
113 TEveTrackPropagator* rnrStyle = cont->GetPropagator();
114 rnrStyle->SetMagField( 0.1*aod->GetMagneticField() );
116 gEve->AddElement(cont);
118 TEvePointSet* pointsD0toKpi = new TEvePointSet("D0->Kpi vertex locations");
120 // load D0->Kpi candidates
121 TClonesArray *arrayD0toKpi = (TClonesArray*) aod->FindListObject("D0toKpi");
123 // load 3prong candidates
124 // TClonesArray *array3Prong =
125 // (TClonesArray*)aod->GetList()->FindObject("Charm3Prong");
128 for (Int_t iD0toKpi=0; iD0toKpi<arrayD0toKpi->GetEntriesFast(); iD0toKpi++)
130 AliAODRecoDecayHF2Prong *rd = (AliAODRecoDecayHF2Prong*)arrayD0toKpi->UncheckedAt(iD0toKpi);
131 Bool_t unsetvtx=kFALSE;
132 if (!rd->GetOwnPrimaryVtx()) {
133 rd->SetOwnPrimaryVtx(primVtx_aod);
136 // REAL D0 particle. If you want to draw only real D0 un-comment these lines
137 //Int_t labD0 = rd->MatchToMC(421,mcArray);
138 //if(labD0<0) continue;
140 AliAODTrack *negAODTr = dynamic_cast<AliAODTrack *>(rd->GetDaughter(0));
141 AliAODTrack *posAODTr = dynamic_cast<AliAODTrack *>(rd->GetDaughter(1));
143 AliVVertex *secv = rd->GetSecondaryVtx();
145 AliESDtrack *negTr = new AliESDtrack(negAODTr);
146 AliESDtrack *posTr = new AliESDtrack(posAODTr);
148 negTr->PropagateToDCA((AliAODVertex*)secv,aod->GetMagneticField(),100.);
149 posTr->PropagateToDCA((AliAODVertex*)secv,aod->GetMagneticField(),100.);
151 AliEveHF* myD0 = aod_make_HF(rnrStyle,primVtx_aod,negTr,posTr,rd,iD0toKpi);
153 gEve->AddElement(myD0,cont);
157 pointsD0toKpi->SetNextPoint(rd->Xv(),rd->Yv(),rd->Zv());
158 pointsD0toKpi->SetPointId(rd);
161 rd->UnsetOwnPrimaryVtx();
165 //cont->SetTitle("test");
170 pointsD0toKpi->SetTitle(Form("N=%d", pointsD0toKpi->Size()));
171 pointsD0toKpi->SetMarkerStyle(4);
172 pointsD0toKpi->SetMarkerSize(1.5);
173 pointsD0toKpi->SetMarkerColor(kViolet);
175 gEve->AddElement(pointsD0toKpi);