2 // Main authors: Matevz Tadel & Alja Mrak-Tadel: 2006, 2007
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 **************************************************************************/
10 #if !defined(__CINT__) || defined(__MAKECINT__)
11 #include <TEveVSDStructs.h>
12 #include <TEveTrackPropagator.h>
13 #include <TEveManager.h>
15 #include <STEER/STEERBase/AliExternalTrackParam.h>
16 #include <STEER/STEERBase/AliPID.h>
17 #include <STEER/ESD/AliESDEvent.h>
18 #include <STEER/ESD/AliESDVertex.h>
19 #include <STEER/ESD/AliESDtrack.h>
20 #include <STEER/ESD/AliESDv0.h>
21 #include <EVE/EveBase/AliEveEventManager.h>
22 #include <EVE/EveBase/AliEveV0.h>
26 void esd_v0_init_rectrack(TEveRecTrack& rt, const AliExternalTrackParam* tp)
28 Double_t pbuf[3], vbuf[3];
30 rt.fSign = tp->GetSign();
31 tp->GetXYZ(vbuf); rt.fV.Set(vbuf);
32 tp->GetPxPyPz(pbuf); rt.fP.Set(pbuf);
33 // Double_t ep = at->GetP(), mc = at->GetMass();
34 rt.fBeta = 1; // ep/TMath::Sqrt(ep*ep + mc*mc);
37 AliEveV0* esd_make_v0(TEveTrackPropagator* rnrStyle, AliESDVertex* primVtx,
38 AliESDtrack* neg, AliESDtrack* pos, AliESDv0* v0, Int_t i)
45 v0->GetNPxPyPz(p[0], p[1], p[2]);
47 v0->GetPPxPyPz(p[0], p[1], p[2]);
50 v0->GetPxPyPz(p[0], p[1], p[2]);
54 v0->GetXYZ(v[0], v[1], v[2]);
57 v0->GetParamN()->GetXYZ(v); rcV0.fVNeg.Set(v);
58 v0->GetParamP()->GetXYZ(v); rcV0.fVPos.Set(v);
60 rcV0.fV0Birth.Set(primVtx->GetXv(), primVtx->GetYv(), primVtx->GetZv());
62 // Simulation data not directly available in AliESDv0
63 //rcV0.fDLabel[0] = v0->GetNindex();
64 //rcV0.fDLabel[1] = v0->GetPindex();
66 esd_v0_init_rectrack(rcNeg, v0->GetParamN());
67 rcNeg.fIndex = v0->GetNindex();
68 esd_v0_init_rectrack(rcPos, v0->GetParamP());
69 rcPos.fIndex = v0->GetPindex();
71 AliEveV0* myV0 = new AliEveV0(&rcNeg, &rcPos, &rcV0, rnrStyle);
72 myV0->SetElementName(Form("ESDv0 %d", i));
73 myV0->SetElementTitle(Form("OnFly: %d\nDCA %f",
75 v0->GetDcaV0Daughters()));
77 myV0->SetOnFlyStatus(v0->GetOnFlyStatus());
78 myV0->SetDaughterDCA(v0->GetDcaV0Daughters());
80 Double_t negProbability[10], posProbability[10];
81 Double_t negP = 0.0, posP = 0.0;
82 neg->GetESDpid(negProbability);
83 pos->GetESDpid(posProbability);
87 // ****** Tentative particle type "concentrations"
88 Double_t c[5]={0.01, 0.01, 0.85, 0.10, 0.05};
91 AliPID negPid(negProbability);
92 AliPID posPid(posProbability);
94 Int_t negMostProbPdg = 0;
95 Int_t posMostProbPdg = 0;
97 switch (negPid.GetMostProbable()){
99 negMostProbPdg = 11; break;
101 negMostProbPdg = 13; break;
103 negMostProbPdg = 211; break;
105 negMostProbPdg = 321; break;
107 negMostProbPdg = 2212; break;
109 negMostProbPdg = 211; break;
112 switch (posPid.GetMostProbable()){
114 posMostProbPdg = 11; break;
116 posMostProbPdg = 13; break;
118 posMostProbPdg = 211; break;
120 posMostProbPdg = 321; break;
122 posMostProbPdg = 2212; break;
124 posMostProbPdg = 211; break;
127 Float_t negMaxProbPid = negPid.GetProbability(negPid.GetMostProbable());
128 Float_t posMaxProbPid = posPid.GetProbability(posPid.GetMostProbable());
130 myV0->SetMaxProbPdgPid(0,negMostProbPdg,negMaxProbPid);
131 myV0->SetMaxProbPdgPid(1,posMostProbPdg,posMaxProbPid);
137 AliEveV0List* esd_V0(Bool_t onFly=kFALSE)
139 AliESDEvent* esd = AliEveEventManager::AssertESD();
141 AliESDVertex* primVertex = (AliESDVertex*) esd->GetPrimaryVertex();
143 AliEveV0List* cont = new AliEveV0List("ESD v0");
144 cont->SetMainColor(3); // green
145 TEveTrackPropagator* rnrStyle = cont->GetPropagator();
146 rnrStyle->SetMagField( 0.1*esd->GetMagneticField() );
148 gEve->AddElement(cont);
151 for (Int_t n=0; n<esd->GetNumberOfV0s(); ++n)
153 AliESDv0 *v0 = esd->GetV0(n);
155 if (v0->GetOnFlyStatus() != onFly) continue;
157 Int_t negInd = v0->GetNindex();
158 Int_t posInd = v0->GetPindex();
159 AliESDtrack* negTr = esd->GetTrack(negInd);
160 AliESDtrack* posTr = esd->GetTrack(posInd);
162 AliEveV0* myV0 = esd_make_v0(rnrStyle, primVertex, negTr,posTr, v0, n);
165 gEve->AddElement(myV0, cont);
170 cont->SetTitle("test");