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 **************************************************************************/
17 #include <TEveManager.h>
18 #include <TEvePointSet.h>
19 #include <EveBase/AliEveEventManager.h>
21 #include <AliRunLoader.h>
22 #include <AliCluster.h>
23 #include <TPC/AliTPCClustersRow.h>
27 TEvePointSet* tpc_clusters(TEveElement* cont=0, Float_t maxR=270)
29 const Int_t kMaxCl=100*160;
31 AliEveEventManager::AssertGeometry();
33 TEvePointSet* clusters = new TEvePointSet(kMaxCl);
34 clusters->SetOwnIds(kTRUE);
36 AliRunLoader* rl = AliEveEventManager::AssertRunLoader();
37 rl->LoadRecPoints("TPC");
39 AliTPCClustersRow *clrow=new AliTPCClustersRow();
40 clrow->SetClass("AliTPCclusterMI");
41 clrow->SetArray(kMaxCl);
43 TTree *cTree = rl->GetTreeR("TPC", false);
44 cTree->SetBranchAddress("Segment", &clrow);
46 Float_t maxRsqr = maxR*maxR;
47 Int_t nentr=(Int_t)cTree->GetEntries();
48 for (Int_t i=0; i<nentr; i++)
50 if (!cTree->GetEvent(i)) continue;
52 TClonesArray *cl = clrow->GetArray();
53 Int_t ncl = cl->GetEntriesFast();
57 AliCluster *c = (AliCluster*) cl->UncheckedAt(ncl);
58 Float_t g[3]; //global coordinates
60 if (g[0]*g[0]+g[1]*g[1] < maxRsqr)
62 clusters->SetNextPoint(g[0], g[1], g[2]);
63 AliCluster *atp = new AliCluster(*c);
64 clusters->SetPointId(atp);
72 if (clusters->Size() == 0 && gEve->GetKeepEmptyCont() == kFALSE)
74 Warning("tpc_clusters", "No TPC clusters");
79 clusters->SetMarkerStyle(2);
80 clusters->SetMarkerSize(0.2);
81 clusters->SetMarkerColor(4);
84 sprintf(form,"TPC Clusters");
85 clusters->SetName(form);
88 sprintf(tip,"N=%d", clusters->Size());
89 clusters->SetTitle(tip);
90 gEve->AddElement(clusters, cont);