{ gROOT->Reset(); // Draw histos filled by Geant4 simulation // TFile f = TFile("run2.root"); TCanvas* c1 = new TCanvas("c1", " "); TH1D* hist1 = (TH1D*)f.Get("1"); hist1->Draw("HIST"); /* TH1D* hist2 = (TH1D*)f.Get("2"); hist2->Draw("HIST"); TH1D* hist3 = (TH1D*)f.Get("3"); hist3->Draw("HIST"); TH1D* hist4 = (TH1D*)f.Get("4"); hist4->Draw("HIST"); TH1D* hist5 = (TH1D*)f.Get("5"); hist5->Draw("HIST"); TH1D* hist6 = (TH1D*)f.Get("6"); hist6->Draw("HIST"); */ }