Gabriele Cosmo
51 lines
1.5 KiB
C++
51 lines
1.5 KiB
C++
// *********************************************************************
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// To execute this macro under ROOT after your simulation ended,
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// 1 - launch ROOT (usually type 'root' at your machine's prompt)
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// 2 - type '.X plot.C' at the ROOT session prompt
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// *********************************************************************
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void SetLeafAddress(TNtuple* ntuple, const char* name, void* address);
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void plot()
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{
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gROOT->Reset();
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gStyle->SetPalette(1);
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gROOT->SetStyle("Plain");
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TCanvas* c1 = new TCanvas ("c1","",20,20,500,500);
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c1->Divide(1,1);
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TFile* f = new TFile("spower.root");
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TNtuple* ntuple;
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ntuple = (TNtuple*)f->Get("track");
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bool rowWise = true;
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TBranch* eventBranch = ntuple->FindBranch("row_wise_branch");
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if ( ! eventBranch ) rowWise = false;
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c1->cd(1);
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gStyle->SetOptStat(000000);
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//gPad->SetLogx();
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gPad->SetLogy();
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ntuple->SetFillStyle(1001);
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ntuple->SetFillColor(2);
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TH1F *htmp = new TH1F("htmp", "Secondary electron energy distribution per incident primary", 100, 0, 1000);
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ntuple->Draw("kineticEnergy>>htmp","kineticEnergy<100000&&flagParticle==1","B");
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htmp->Scale (1./ntuple->GetEntries("trackID==1"));
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htmp->SetXTitle("Energy (eV)");
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htmp->Draw();
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}
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void SetLeafAddress(TNtuple* ntuple, const char* name, void* address) {
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TLeaf* leaf = ntuple->FindLeaf(name);
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if ( ! leaf ) {
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std::cerr << "Error in <SetLeafAddress>: unknown leaf --> " << name << std::endl;
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return;
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}
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leaf->SetAddress(address);
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}
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