Gabriele Cosmo
75 lines
1.9 KiB
C++
75 lines
1.9 KiB
C++
// Draw Longitudinal Shower Profile
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#include "TH1D.h"
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#include "TFile.h"
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#include "THStack.h"
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#include "TCanvas.h"
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#include "TString.h"
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#include "TLegend.h"
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TCanvas* cmpE()
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{
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// TString dataDir("/net/llrdata1.in2p3.fr/data/DATA/data.harpo/BH5D/");
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TString dataDir("./");
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TString dataFile[2];
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dataFile[0] = "gflash00.root";
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dataFile[1] = "gflash01.root";
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TFile* f[2];
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TH1D* p[2];
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// UInt_t col[] = { kRed, kBlue, kGreen, kViolet };
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UInt_t col[] = {kRed, kGreen, kBlue, kViolet};
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// UInt_t mark[] = { 20, 32, 21, 22};
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UInt_t mark[] = {20, 21, 32, 22};
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//
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THStack* hs = new THStack("hs", "");
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for ( UInt_t i = 0; i < 2; i++ ) {
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TString tmp = dataDir + dataFile[i];
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f[i] = TFile::Open(tmp);
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if ( ! f[i] ) return 0;
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p[i] = (TH1D*)(f[i])->Get("h0");
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// ShiftUp(p[i],0.0);
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// histogram
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p[i]->SetFillColor(col[i]);
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p[i]->SetLineStyle(i + 2);
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p[i]->SetLineColor(col[i]);
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p[i]->SetLineWidth(2);
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p[i]->SetMarkerStyle(mark[i]);
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p[i]->SetMarkerColor(col[i]);
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p[i]->SetMarkerSize(1.5);
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hs->Add(p[i]);
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}
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TCanvas* cst = new TCanvas("cst", "stacked hists", 10, 10, 800, 700);
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// gPad->SetGrid();
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hs->Draw("p,nostack");
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hs->SetTitle("Total Energy");
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hs->GetXaxis()->SetTitle("E/E_{tot} (%)");
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// hs->GetYaxis()->SetTitle("No of events");
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cst->RedrawAxis();
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cst->Update();
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TLegend* legend = new TLegend(0.65, 0.84, 0.94, 0.94);
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legend->AddEntry(p[0],
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Form("full - E %5.3f #sigma %5.3f",p[0]->GetMean(),p[0]->GetRMS()),"p");
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legend->AddEntry(p[1],
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Form("gflash - E %5.3f #sigma %5.3f",p[1]->GetMean(),p[1]->GetRMS()),"p");
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legend->Draw();
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cst->Update();
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// img->FromPad(c, 10, 10, 300, 200);
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// TImage *img = TImage::Create();
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// img->FromPad(cst);
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// img->WriteImage("hist0-640MeV-p.png");
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// for (UInt_t i = 0; i < 4; i++) {
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// f[i]->Close();
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// }
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return cst;
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}
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