EVE/alice-macros/its_hits.C

   1 // $Id$
   2
   3 Reve::PointSet*
   4 its_hits(const char *varexp    = "fX:fY:fZ",
   5          const char *selection = "")
   6 {
   7   AliRunLoader* rl =  Alieve::Event::AssertRunLoader();
   8   rl->LoadHits("ITS");
   9
  10   TTree* ht = rl->GetTreeH("ITS", false);
  11
  12   Reve::PointSet* points = new Reve::PointSet(Form("ITS Hits '%s'", selection));
  13
  14   TPointSelector ps(ht, points, varexp, selection);
  15   ps.Select();
  16
  17   points->SetTitle(Form("N=%d", points->Size()));
  18   points->SetMarkerSize(.5);
  19   points->SetMarkerColor((Color_t)2);
  20
  21   gReve->AddRenderElement(points);
  22   gReve->Redraw3D();
  23
  24   return points;
  25 }