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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 | void tpc_hits_charge_split(const char *varexp = | |
11 | "TPC2.fArray.fR:TPC2.fArray.fFi:TPC2.fArray.fZ" | |
12 | ":log(TPC2.fArray.fCharge)", | |
13 | const char *selection = "TPC2.fArray.fR>80") | |
14 | { | |
15 | // Extracts 'major' TPC hits (not the compressed ones). | |
16 | // This gives ~2.5% of all hits. | |
17 | ||
18 | AliRunLoader* rl = AliEveEventManager::AssertRunLoader(); | |
19 | rl->LoadHits("TPC"); | |
20 | ||
21 | TTree* ht = rl->GetTreeH("TPC", false); | |
22 | ||
23 | TEvePointSetArray* l = new TEvePointSetArray("TPC hits - Log-Charge Slices", ""); | |
24 | l->SetSourceCS(TEvePointSelectorConsumer::kTVT_RPhiZ); | |
25 | l->SetMarkerColor(3); | |
26 | l->SetMarkerStyle(20); // full circle | |
27 | l->SetMarkerSize(.5); | |
28 | ||
29 | gEve->AddElement(l); | |
30 | l->InitBins("Log Charge", 20, 0, 5); | |
31 | ||
32 | TEvePointSelector ps(ht, l, varexp, selection); | |
33 | ps.Select(); | |
34 | ||
35 | l->CloseBins(); | |
36 | ||
37 | gEve->Redraw3D(); | |
38 | } |