# Drawing Options for 1D Histograms

    {
       //
       // To see the output of this macro, click  here
       //
       gROOT->Reset();
       c1 = new TCanvas("c1","Histogram Drawing Options",200,10,700,900);

       pad1 = new TPad("pad1","The pad with the function",0.03,0.62,0.50,0.92,21);
       pad2 = new TPad("pad2","The pad with the histogram",0.51,0.62,0.98,0.92,21);
       pad3 = new TPad("pad3","The pad with the histogram",0.03,0.02,0.97,0.57,21);
       pad1->Draw();
       pad2->Draw();
       pad3->Draw();
       //
       // We connect the ROOT file generated in a previous tutorial
       // see  An example creating/filling/saving histograms/ntuples on file
       //
       TFile example("hsimple.root");
       example.ls();

       // Draw a global picture title
       title = new TPaveLabel(0.1,0.94,0.9,0.98,
                        "Drawing options for one dimensional histograms");
       title->SetFillColor(16);
       title->Draw();
       //
       // Draw histogram hpx in first pad with the default option.
       pad1->cd();
       pad1->GetFrame()->SetFillColor(18);
       hpx->SetFillColor(45);
       hpx->DrawCopy();
       label1 = new TPaveLabel(-3.5,700,-1,800,"Default option");
       label1->SetFillColor(42);
       label1->Draw();
       //
       // Draw hpx as a lego. Clicking on the lego area will show
       // a "transparent cube" to guide you rotating the lego in real time.
       pad2->cd();
       hpx->DrawCopy("lego1");
       label2 = new TPaveLabel(0.4,0.8,0.9,0.95,"option Lego1");
       label2->SetFillColor(42);
       label2->Draw();
       label2a = new TPaveLabel(-0.93,-1.08,0.25,-0.92,"Click on lego to rotate");
       label2a->SetFillColor(42);
       label2a->Draw();
       //
       // Draw hpx with its errors and a marker.
       pad3->cd();
       pad3->SetGridx();
       pad3->SetGridy();
       pad3->GetFrame()->SetFillColor(18);
       hpx->SetMarkerStyle(21);
       hpx->Draw("e1p");
       label3 = new TPaveLabel(2,600,3.5,650,"option e1p");
       label3->SetFillColor(42);
       label3->Draw();
       //
       // The following illustrates how to add comments using a PaveText.
       // Attributes of text/lines/boxes added to a PaveText can be modified.
       // The AddText function returns a pointer to the added object.
       pave = new TPaveText(-3.78,500,-1.5,750);
       pave->SetFillColor(42);
       TText *t1=pave->AddText("You can move");
       t1->SetTextColor(4);
       t1->SetTextSize(0.05);
       pave->AddText("Title and Stats pads");
       pave->AddText("X and Y axis");
       pave->AddText("You can modify bin contents");
       pave->Draw();
       c1->Update();
    }