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