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d810d0de | 1 | // $Id$ |
2 | // Main authors: Matevz Tadel & Alja Mrak-Tadel: 2006, 2007 | |
3 | ||
4 | /************************************************************************** | |
5 | * Copyright(c) 1998-2008, ALICE Experiment at CERN, all rights reserved. * | |
6 | * See http://aliceinfo.cern.ch/Offline/AliRoot/License.html for * | |
51346b82 | 7 | * full copyright notice. * |
d810d0de | 8 | **************************************************************************/ |
32e219c2 | 9 | #ifdef __CINT__ |
d5e9edb3 | 10 | |
84aff7a4 | 11 | class TEveElement; |
12 | class TEvePointSet; | |
32e219c2 | 13 | |
14 | #else | |
15 | ||
84aff7a4 | 16 | #include <TEveManager.h> |
17 | #include <TEvePointSet.h> | |
ea5d9491 | 18 | #include <EveBase/AliEveEventManager.h> |
32e219c2 | 19 | |
20 | #include <AliRunLoader.h> | |
21 | #include <AliCluster.h> | |
22 | ||
23 | #include <TClonesArray.h> | |
24 | ||
25 | #endif | |
26 | ||
84aff7a4 | 27 | TEvePointSet* its_clusters(TEveElement* cont=0, Float_t maxR=50) |
d5e9edb3 | 28 | { |
d810d0de | 29 | AliEveEventManager::AssertGeometry(); |
d5e9edb3 | 30 | |
d810d0de | 31 | AliRunLoader* rl = AliEveEventManager::AssertRunLoader(); |
d5e9edb3 | 32 | rl->LoadRecPoints("ITS"); |
33 | ||
34 | TTree *cTree = rl->GetTreeR("ITS", false); | |
8ebd7df4 | 35 | if (cTree == 0) |
36 | return 0; | |
d5e9edb3 | 37 | |
32e219c2 | 38 | TClonesArray *cl = NULL; |
39 | TBranch *branch = cTree->GetBranch("ITSRecPoints"); | |
d5e9edb3 | 40 | branch->SetAddress(&cl); |
41 | ||
8ebd7df4 | 42 | TEvePointSet* clusters = new TEvePointSet(10000); |
43 | clusters->SetOwnIds(kTRUE); | |
44 | ||
d5e9edb3 | 45 | Int_t nentr=(Int_t)cTree->GetEntries(); |
46 | for (Int_t i=0; i<nentr; i++) { | |
47 | if (!cTree->GetEvent(i)) continue; | |
48 | ||
49 | Int_t ncl=cl->GetEntriesFast(); | |
50 | ||
ec357b01 | 51 | Float_t maxRsqr = maxR*maxR; |
d5e9edb3 | 52 | while (ncl--) { |
53 | AliCluster *c=(AliCluster*)cl->UncheckedAt(ncl); | |
54 | Float_t g[3]; //global coordinates | |
55 | c->GetGlobalXYZ(g); | |
ec357b01 | 56 | if (g[0]*g[0]+g[1]*g[1] < maxRsqr) |
57 | { | |
58 | clusters->SetNextPoint(g[0], g[1], g[2]); | |
59 | AliCluster *atp = new AliCluster(*c); | |
60 | clusters->SetPointId(atp); | |
61 | } | |
d5e9edb3 | 62 | } |
63 | } | |
64 | ||
78ab36c2 | 65 | rl->UnloadRecPoints("ITS"); |
66 | ||
84aff7a4 | 67 | if (clusters->Size() == 0 && gEve->GetKeepEmptyCont() == kFALSE) { |
8ebd7df4 | 68 | Warning("its_clusters.C", "No ITS clusters"); |
d5e9edb3 | 69 | delete clusters; |
70 | return 0; | |
71 | } | |
72 | ||
d5e9edb3 | 73 | char form[1000]; |
74 | sprintf(form,"ITS Clusters"); | |
75 | clusters->SetName(form); | |
76 | ||
77 | char tip[1000]; | |
78 | sprintf(tip,"N=%d", clusters->Size()); | |
79 | clusters->SetTitle(tip); | |
f6afd0e1 | 80 | |
81 | const TString viz_tag("ITS Clusters"); | |
bb3715b9 | 82 | // When going to new root call: |
f6afd0e1 | 83 | // clusters->ApplyVizTag(viz_tag, "Clusters"); |
84 | clusters->ApplyVizTag(viz_tag); | |
85 | ||
84aff7a4 | 86 | gEve->AddElement(clusters, cont); |
f6afd0e1 | 87 | |
84aff7a4 | 88 | gEve->Redraw3D(); |
d5e9edb3 | 89 | |
90 | return clusters; | |
91 | } |