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Commit | Line | Data |
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6a680ee5 | 1 | // $Id$ |
d810d0de | 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 | **************************************************************************/ |
6a680ee5 | 9 | |
84aff7a4 | 10 | TEvePointSet* |
6a680ee5 | 11 | t0_hits(const char *varexp = "T0.fX:T0.fY:T0.fZ", |
84aff7a4 | 12 | const char *selection = "") |
6a680ee5 | 13 | { |
14 | // Extracts T0 hits. | |
15 | ||
16 | ||
d810d0de | 17 | AliRunLoader* rl = AliEveEventManager::AssertRunLoader(); |
6a680ee5 | 18 | rl->LoadHits("T0"); |
19 | ||
20 | TTree* ht = rl->GetTreeH("T0", false); | |
21 | ||
22 | Int_t nTracks = ht->GetEntries(); | |
23 | // printf("Found %d tracks. \n",nTracks); | |
24 | for (Int_t it = 0; it < nTracks; it++) { | |
51346b82 | 25 | |
6a680ee5 | 26 | TClonesArray *hits = 0; |
27 | ht->SetBranchAddress("T0",&hits); | |
51346b82 | 28 | |
6a680ee5 | 29 | ht->GetEvent(it); |
84aff7a4 | 30 | // Int_t nHits = hits->GetEntriesFast(); |
31 | // printf("Found %d hits in track %d.\n", nHits, it); | |
6a680ee5 | 32 | |
33 | } | |
84aff7a4 | 34 | TEvePointSet* points = new TEvePointSet(Form("T0 Hits '%s'", selection)); |
35 | points->SetSourceCS(TEvePointSelectorConsumer::kTVT_XYZ); | |
6a680ee5 | 36 | |
84aff7a4 | 37 | TEvePointSelector ps(ht, points, varexp, selection); |
6a680ee5 | 38 | ps.Select(); |
39 | ||
40 | points->SetTitle(Form("N=%d", points->Size())); | |
41 | points->SetMarkerSize(.5); | |
fbc350a3 | 42 | points->SetMarkerColor(3); |
6a680ee5 | 43 | |
84aff7a4 | 44 | gEve->AddElement(points); |
45 | gEve->Redraw3D(); | |
6a680ee5 | 46 | |
47 | return points; | |
48 | } |