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 **************************************************************************/
19 #include <TEveManager.h>
20 #include <TEvePointSet.h>
21 #include <Alieve/AliEveEventManager.h>
23 #include <AliRunLoader.h>
24 #include <AliCluster.h>
25 #include <TPC/AliTPCClustersRow.h>
29 TEvePointSet* tpc_clusters(TEveElement* cont=0, Float_t maxR=270)
31 const Int_t kMaxCl=100*160;
33 AliEveEventManager::AssertGeometry();
35 TEvePointSet* clusters = new TEvePointSet(kMaxCl);
36 clusters->SetOwnIds(kTRUE);
38 AliRunLoader* rl = AliEveEventManager::AssertRunLoader();
39 rl->LoadRecPoints("TPC");
41 AliTPCClustersRow *clrow=new AliTPCClustersRow();
42 clrow->SetClass("AliTPCclusterMI");
43 clrow->SetArray(kMaxCl);
45 TTree *cTree = rl->GetTreeR("TPC", false);
46 cTree->SetBranchAddress("Segment", &clrow);
48 Float_t maxRsqr = maxR*maxR;
49 TClonesArray *cl=clrow->GetArray();
50 Int_t nentr=(Int_t)cTree->GetEntries();
51 for (Int_t i=0; i<nentr; i++) {
52 if (!cTree->GetEvent(i)) continue;
54 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) {
73 Warning("tpc_clusters", "No TPC clusters");
78 clusters->SetMarkerStyle(2);
79 clusters->SetMarkerSize(0.2);
80 clusters->SetMarkerColor(4);
83 sprintf(form,"TPC Clusters");
84 clusters->SetName(form);
87 sprintf(tip,"N=%d", clusters->Size());
88 clusters->SetTitle(tip);
89 gEve->AddElement(clusters, cont);