TCanvas *c1 = new TCanvas("c1","Exclusion graphs examples",200,10,600,400); c1->SetGrid(); TMultiGraph *mg = new TMultiGraph(); mg->SetTitle("Exclusion graphs"); const Int_t n = 35; Double_t xvalues1[n], xvalues2[n], xvalues3[n], yvalues1[n], yvalues2[n], yvalues3[n]; for (Int_t i=0;iSetLineColor(2); gr1->SetLineWidth(1504); gr1->SetFillStyle(3005); TGraph *gr2 = new TGraph(n,xvalues2,yvalues2); gr2->SetLineColor(4); gr2->SetLineWidth(-2002); gr2->SetFillStyle(3004); gr2->SetFillColor(9); TGraph *gr3 = new TGraph(n,xvalues3,yvalues3); gr3->SetLineColor(5); gr3->SetLineWidth(-802); gr3->SetFillStyle(3002); gr3->SetFillColor(2); mg->Add(gr1); mg->Add(gr2); mg->Add(gr3); mg->Draw("AC"); return c1; gROOT->GetListOfCanvases()->Draw()