Gabriele Cosmo
43 lines
937 B
C++
43 lines
937 B
C++
// ROOT macro file for plotting example B4 ntuple
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//
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// Can be run from ROOT session:
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// root[0] .x plotNtuple.C
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{
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gROOT->Reset();
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gROOT->SetStyle("Plain");
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// Draw histos filled by Geant4 simulation
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//
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// Open file filled by Geant4 simulation
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TFile f("B4.root");
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// Create a canvas and divide it into 2x2 pads
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TCanvas* c1 = new TCanvas("c1", "", 20, 20, 1000, 1000);
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c1->Divide(2,2);
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// Get ntuple
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TNtuple* ntuple = (TNtuple*)f.Get("B4");
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// Draw Eabs histogram in the pad 1
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c1->cd(1);
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ntuple->Draw("Eabs");
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// Draw Labs histogram in the pad 2
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c1->cd(2);
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ntuple->Draw("Labs");
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// Draw Egap histogram in the pad 3
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// with logaritmic scale for y ?? how to do this?
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c1->cd(3);
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gPad->SetLogy(1);
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ntuple->Draw("Egap");
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// Draw Lgap histogram in the pad 4
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// with logaritmic scale for y ?? how to do this?
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c1->cd(4);
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gPad->SetLogy(1);
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ntuple->Draw("Egap");
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}
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