exclusiongraph.C
TCanvas *exclusiongraph() {
// Draw three graphs with an exclusion zone.
//Author: Olivier Couet
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 x1[n], x2[n], x3[n], y1[n], y2[n], y3[n];
for (Int_t i=0;i<n;i++) {
x1[i] = i*0.1;
x2[i] = x1[i];
x3[i] = x1[i]+.5;
y1[i] = 10*sin(x1[i]);
y2[i] = 10*cos(x1[i]);
y3[i] = 10*sin(x1[i])-2;
}
TGraph *gr1 = new TGraph(n,x1,y1);
gr1->SetLineColor(2);
gr1->SetLineWidth(1504);
gr1->SetFillStyle(3005);
TGraph *gr2 = new TGraph(n,x2,y2);
gr2->SetLineColor(4);
gr2->SetLineWidth(-2002);
gr2->SetFillStyle(3004);
gr2->SetFillColor(9);
TGraph *gr3 = new TGraph(n,x3,y3);
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;
}