]>
Commit | Line | Data |
---|---|---|
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 * | |
7 | * full copyright notice. * | |
8 | **************************************************************************/ | |
9 | ||
10 | TEvePointSet* | |
11 | t0_hits(const char *varexp = "T0.fX:T0.fY:T0.fZ", | |
12 | const char *selection = "") | |
13 | { | |
14 | // Extracts T0 hits. | |
15 | ||
16 | ||
17 | AliRunLoader* rl = AliEveEventManager::AssertRunLoader(); | |
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++) { | |
25 | ||
26 | TClonesArray *hits = 0; | |
27 | ht->SetBranchAddress("T0",&hits); | |
28 | ||
29 | ht->GetEvent(it); | |
30 | // Int_t nHits = hits->GetEntriesFast(); | |
31 | // printf("Found %d hits in track %d.\n", nHits, it); | |
32 | ||
33 | } | |
34 | TEvePointSet* points = new TEvePointSet(Form("T0 Hits '%s'", selection)); | |
35 | points->SetSourceCS(TEvePointSelectorConsumer::kTVT_XYZ); | |
36 | ||
37 | TEvePointSelector ps(ht, points, varexp, selection); | |
38 | ps.Select(); | |
39 | ||
40 | points->SetTitle(Form("N=%d", points->Size())); | |
41 | points->SetMarkerSize(.5); | |
42 | points->SetMarkerColor(3); | |
43 | ||
44 | points->SetName(Form("T0 Hits")); | |
45 | const TString viz_tag("SIM Hits T0"); | |
46 | points->ApplyVizTag(viz_tag, "Hits"); | |
47 | ||
48 | gEve->AddElement(points); | |
49 | gEve->Redraw3D(); | |
50 | ||
51 | return points; | |
52 | } |