void TGraph::GetPoint(Int_t i, Double_t &x, Double_t &y) constto
Int_t TGraph::GetPoint(Int_t i, Double_t &x, Double_t &y) constThe function returns -1 in case of an invalid request or the point number otherwise.
{ TH1D h("h", "h", 10., 0., 1.); h.SetBinContent(1, 1.); h.SetBinContent(3, 1.); h.SetBinContent(10, 1.); h.SetFillColor(1001); h.SetFillColor(kOrange-2); h.SetLineColor(kBlack); TCanvas canvas("canvas"); frame = canvas.DrawFrame(-1., 0., 2., 2.); h.Draw("SAME"); }
{ TH1D h("h", "h", 10., 0., 1.); h.Fill(.5); THStack s("s", "s"); s.Add(&h); TCanvas canvas("canvas"); frame = canvas.DrawFrame(-1., 0., 2., 2.); frame.SetLabelSize(0.05, "XY"); frame.Draw(); s.Draw("same"); }