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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 | **************************************************************************/ |
6c49a8e1 | 9 | |
4f8b4026 | 10 | #if !defined(__CINT__) || defined(__MAKECINT__) |
11 | #include <TClonesArray.h> | |
12 | #include <TBranch.h> | |
13 | #include <TTree.h> | |
14 | #include <TEveManager.h> | |
15 | #include <TEveElement.h> | |
16 | #include <TEvePointSet.h> | |
d5e9edb3 | 17 | |
6c49a8e1 | 18 | #include <AliRunLoader.h> |
19 | #include <AliCluster.h> | |
20 | #include <AliEveEventManager.h> | |
4f8b4026 | 21 | #else |
84aff7a4 | 22 | class TEveElement; |
23 | class TEvePointSet; | |
71d5ee50 | 24 | class TTree; |
25 | class TBranch; | |
4f8b4026 | 26 | #endif |
32e219c2 | 27 | |
84aff7a4 | 28 | TEvePointSet* its_clusters(TEveElement* cont=0, Float_t maxR=50) |
d5e9edb3 | 29 | { |
d810d0de | 30 | AliEveEventManager::AssertGeometry(); |
d5e9edb3 | 31 | |
d810d0de | 32 | AliRunLoader* rl = AliEveEventManager::AssertRunLoader(); |
d5e9edb3 | 33 | rl->LoadRecPoints("ITS"); |
34 | ||
35 | TTree *cTree = rl->GetTreeR("ITS", false); | |
8ebd7df4 | 36 | if (cTree == 0) |
37 | return 0; | |
d5e9edb3 | 38 | |
32e219c2 | 39 | TClonesArray *cl = NULL; |
40 | TBranch *branch = cTree->GetBranch("ITSRecPoints"); | |
d5e9edb3 | 41 | branch->SetAddress(&cl); |
42 | ||
8ebd7df4 | 43 | TEvePointSet* clusters = new TEvePointSet(10000); |
44 | clusters->SetOwnIds(kTRUE); | |
45 | ||
5f8f3b6b | 46 | Int_t nentr = (Int_t) cTree->GetEntries(); |
47 | for (Int_t i=0; i<nentr; i++) | |
48 | { | |
d5e9edb3 | 49 | if (!cTree->GetEvent(i)) continue; |
50 | ||
5f8f3b6b | 51 | Int_t ncl = cl->GetEntriesFast(); |
d5e9edb3 | 52 | |
ec357b01 | 53 | Float_t maxRsqr = maxR*maxR; |
5f8f3b6b | 54 | for (Int_t icl = 0; icl < ncl; ++icl) |
55 | { | |
56 | AliCluster *c = (AliCluster*) cl->UncheckedAt(icl); | |
57 | // This really should not happen, but did in online display once. | |
58 | if (c == 0) | |
59 | { | |
60 | ::Warning("its_clusters", "Got NULL AliCluster*, idx=%d, N=%d.", | |
61 | icl, ncl); | |
62 | continue; | |
63 | } | |
d5e9edb3 | 64 | Float_t g[3]; //global coordinates |
65 | c->GetGlobalXYZ(g); | |
5f8f3b6b | 66 | if (g[0]*g[0] + g[1]*g[1] < maxRsqr) |
ec357b01 | 67 | { |
68 | clusters->SetNextPoint(g[0], g[1], g[2]); | |
69 | AliCluster *atp = new AliCluster(*c); | |
70 | clusters->SetPointId(atp); | |
71 | } | |
d5e9edb3 | 72 | } |
73 | } | |
74 | ||
78ab36c2 | 75 | rl->UnloadRecPoints("ITS"); |
76 | ||
84aff7a4 | 77 | if (clusters->Size() == 0 && gEve->GetKeepEmptyCont() == kFALSE) { |
8ebd7df4 | 78 | Warning("its_clusters.C", "No ITS clusters"); |
d5e9edb3 | 79 | delete clusters; |
80 | return 0; | |
81 | } | |
82 | ||
30650838 | 83 | clusters->SetName("ITS Clusters"); |
d5e9edb3 | 84 | |
9dcd42ea | 85 | clusters->SetTitle(Form("N=%d", clusters->Size())); |
f6afd0e1 | 86 | |
9dcd42ea | 87 | const TString viz_tag("REC Clusters ITS"); |
30650838 | 88 | |
68ca2fe7 | 89 | clusters->ApplyVizTag(viz_tag, "Clusters"); |
f6afd0e1 | 90 | |
84aff7a4 | 91 | gEve->AddElement(clusters, cont); |
f6afd0e1 | 92 | |
84aff7a4 | 93 | gEve->Redraw3D(); |
d5e9edb3 | 94 | |
95 | return clusters; | |
96 | } |