{ TFile* rc = new TFile("hsimple1.root"); TFile* wc = new TFile("hsimple2.root"); TCanvas *can = new TCanvas("can","test", 0, 0, 700, 750); // 500x700 - default can->cd(); can->Clear(); pad10_01 = new TPad("pad10_01", "01", 0.000, 0.0, 1.00, 1.000); pad10_01->Draw(); can->Update(); pad10_01->cd(); wc->cd(); hpxpy->ProjectionX("_px", 0, hpxpy->GetYaxis()->FindBin(1.6)); TH1D* test1 = (TH1D*) hpxpy_px->Clone(); rc->cd(); // hpxpy->ProjectionX(); hpxpy->ProjectionX("_px", 0, hpxpy->GetYaxis()->FindBin(1.6)); TH1D* test2 = (TH1D*) hpxpy_px->Clone(); test1->SetLineColor(4); test1->Draw(); test2->SetLineColor(2); test2->Draw("same"); pad10_01->Update(); can->Update(); }