| Geant4 Cross Reference |
1 // ROOT macro file for plotting example B4 his 1
2 //
3 // Can be run from ROOT session:
4 // root[0] .x plotHisto.C
5
6 {
7 gROOT->Reset();
8 gROOT->SetStyle("Plain");
9
10 // Draw histos filled by Geant4 simulation
11 //
12
13 // Open file filled by Geant4 simulation
14 TFile f("B4.root");
15
16 // Create a canvas and divide it into 2x2 pa
17 TCanvas* c1 = new TCanvas("c1", "", 20, 20,
18 c1->Divide(2,2);
19
20 // Draw Eabs histogram in the pad 1
21 c1->cd(1);
22 TH1D* hist1 = (TH1D*)f.Get("Eabs");
23 hist1->Draw("HIST");
24
25 // Draw Labs histogram in the pad 2
26 c1->cd(2);
27 TH1D* hist2 = (TH1D*)f.Get("Labs");
28 hist2->Draw("HIST");
29
30 // Draw Egap histogram in the pad 3
31
32 TH1D* hist3 = (TH1D*)f.Get("Egap");
33 c1->cd(3);
34 // set logarithmic scale for y
35 //gPad->SetLogy(1);
36 hist3->Draw("HIST");
37
38 // Draw Lgap histogram in the pad 4
39 c1->cd(4);
40 // set logarithmic scale for y
41 //gPad->SetLogy(1);
42 TH1D* hist4 = (TH1D*)f.Get("Lgap");
43 hist4->Draw("HIST");
44 }
45