3 void clusters_from_label(Int_t label=0)
5 AliESD* esd = Alieve::Event::AssertESD();
6 Reve::PointSet* clusters = new Reve::PointSet(64);
7 clusters->SetOwnIds(kTRUE);
9 for (Int_t n=0; n<esd->GetNumberOfTracks(); n++) {
10 AliESDtrack* at = esd->GetTrack(n);
11 if (at->GetLabel() == label) {
12 const AliTrackPointArray* pArr = at->GetTrackPointArray();
14 Warning("clusters_from_label", "TrackPointArray not stored with ESD track.");
17 Int_t np = pArr->GetNPoints();
18 const Float_t* x = pArr->GetX();
19 const Float_t* y = pArr->GetY();
20 const Float_t* z = pArr->GetZ();
21 for (Int_t i=0; i<np; ++i) {
22 clusters->SetNextPoint(x[i], y[i], z[i]);
23 AliTrackPoint *atp = new AliTrackPoint;
24 pArr->GetPoint(*atp, i);
25 clusters->SetPointId(atp);
29 clusters->SetMarkerStyle(2);
30 clusters->SetMarkerSize(0.5);
31 clusters->SetMarkerColor(4);
32 //PH The line below is replaced waiting for a fix in Root
33 //PH which permits to use variable siza arguments in CINT
34 //PH on some platforms (alphalinuxgcc, solariscc5, etc.)
35 //PH clusters->SetName(Form("Clusters lab=%d", label));
37 sprintf(form,"Clusters lab=%d", label);
38 clusters->SetName(form);
41 gReve->AddRenderElement(clusters);