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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 | |
ba978640 | 10 | #if !defined(__CINT__) || defined(__MAKECINT__) |
11 | #include <TClonesArray.h> | |
12 | #include <TTree.h> | |
13 | #include <TEvePointSet.h> | |
14 | #include <TEveElement.h> | |
15 | #include <TEveManager.h> | |
16 | #include <TEveTreeTools.h> | |
17 | ||
18 | #include <STEER/STEER/AliRunLoader.h> | |
19 | #include <EveBase/AliEveEventManager.h> | |
20 | #endif | |
21 | ||
84aff7a4 | 22 | TEvePointSet* |
6a680ee5 | 23 | t0_hits(const char *varexp = "T0.fX:T0.fY:T0.fZ", |
84aff7a4 | 24 | const char *selection = "") |
6a680ee5 | 25 | { |
26 | // Extracts T0 hits. | |
27 | ||
28 | ||
d810d0de | 29 | AliRunLoader* rl = AliEveEventManager::AssertRunLoader(); |
6a680ee5 | 30 | rl->LoadHits("T0"); |
31 | ||
32 | TTree* ht = rl->GetTreeH("T0", false); | |
33 | ||
34 | Int_t nTracks = ht->GetEntries(); | |
35 | // printf("Found %d tracks. \n",nTracks); | |
36 | for (Int_t it = 0; it < nTracks; it++) { | |
51346b82 | 37 | |
6a680ee5 | 38 | TClonesArray *hits = 0; |
39 | ht->SetBranchAddress("T0",&hits); | |
51346b82 | 40 | |
6a680ee5 | 41 | ht->GetEvent(it); |
84aff7a4 | 42 | // Int_t nHits = hits->GetEntriesFast(); |
43 | // printf("Found %d hits in track %d.\n", nHits, it); | |
6a680ee5 | 44 | |
45 | } | |
30650838 | 46 | TEvePointSet* points = new TEvePointSet(Form("T0 Hits '%s'", selection)); |
84aff7a4 | 47 | points->SetSourceCS(TEvePointSelectorConsumer::kTVT_XYZ); |
6a680ee5 | 48 | |
84aff7a4 | 49 | TEvePointSelector ps(ht, points, varexp, selection); |
6a680ee5 | 50 | ps.Select(); |
51 | ||
52 | points->SetTitle(Form("N=%d", points->Size())); | |
53 | points->SetMarkerSize(.5); | |
fbc350a3 | 54 | points->SetMarkerColor(3); |
6a680ee5 | 55 | |
30650838 | 56 | points->SetName(Form("T0 Hits")); |
9dcd42ea | 57 | const TString viz_tag("SIM Hits T0"); |
58 | points->ApplyVizTag(viz_tag, "Hits"); | |
59 | ||
84aff7a4 | 60 | gEve->AddElement(points); |
61 | gEve->Redraw3D(); | |
6a680ee5 | 62 | |
63 | return points; | |
64 | } |