HistMacro_Tracking_p3.C

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// hnamepath: /Independent/Hist_DetectorPID/CDC/dEdxVsP_Amp_q-
// hnamepath: /Independent/Hist_DetectorPID/CDC/dEdxVsP_Amp_q+
// hnamepath: /Independent/Hist_DetectorPID/FDC/dEdxVsP_q-
// hnamepath: /Independent/Hist_DetectorPID/FDC/dEdxVsP_q+

{
   //Goto Path
   TDirectory *locInitDirectory = gDirectory;
   TDirectory *locDirectory = (TDirectory*)gDirectory->FindObjectAny("Hist_DetectorPID");
   if(!locDirectory)
      return;
   locDirectory->cd();

   //Get Histograms
   gDirectory->cd("CDC");
   TH2I* locHist_CDCdEdXVsP_QMinus = (TH2I*)gDirectory->Get("dEdXVsP_Amp_q-"); //q-
   TH2I* locHist_CDCdEdXVsP_QPlus = (TH2I*)gDirectory->Get("dEdXVsP_Amp_q+"); //q+
   gDirectory->cd("../FDC");
   TH2I* locHist_FDCdEdXVsP_QMinus = (TH2I*)gDirectory->Get("dEdXVsP_q-"); //q-
   TH2I* locHist_FDCdEdXVsP_QPlus = (TH2I*)gDirectory->Get("dEdXVsP_q+"); //q+

   //Get/Make Canvas
   TCanvas *locCanvas = NULL;
   if(TVirtualPad::Pad() == NULL)
      locCanvas = new TCanvas("Tracking_p3", "Tracking_p3", 1200, 800); //for testing
   else
      locCanvas = gPad->GetCanvas();
   locCanvas->Divide(2, 2);

   //Draw
   locCanvas->cd(1);
   gPad->SetTicks();
   gPad->SetGrid();
   if(locHist_CDCdEdXVsP_QPlus != NULL)
   {
      locHist_CDCdEdXVsP_QPlus->GetXaxis()->SetRangeUser(0.0, 6.0);
      locHist_CDCdEdXVsP_QPlus->GetXaxis()->SetTitleSize(0.05);
      locHist_CDCdEdXVsP_QPlus->GetYaxis()->SetTitleSize(0.05);
      locHist_CDCdEdXVsP_QPlus->GetXaxis()->SetLabelSize(0.05);
      locHist_CDCdEdXVsP_QPlus->GetYaxis()->SetLabelSize(0.05);
      locHist_CDCdEdXVsP_QPlus->Draw("COLZ");
   }

   locCanvas->cd(2);
   gPad->SetTicks();
   gPad->SetGrid();
   if(locHist_CDCdEdXVsP_QMinus != NULL)
   {
      locHist_CDCdEdXVsP_QMinus->GetXaxis()->SetRangeUser(0.0, 6.0);
      locHist_CDCdEdXVsP_QMinus->GetXaxis()->SetTitleSize(0.05);
      locHist_CDCdEdXVsP_QMinus->GetYaxis()->SetTitleSize(0.05);
      locHist_CDCdEdXVsP_QMinus->GetXaxis()->SetLabelSize(0.05);
      locHist_CDCdEdXVsP_QMinus->GetYaxis()->SetLabelSize(0.05);
      locHist_CDCdEdXVsP_QMinus->Draw("COLZ");
   }

   locCanvas->cd(3);
   gPad->SetTicks();
   gPad->SetGrid();
   if(locHist_FDCdEdXVsP_QPlus != NULL)
   {
      locHist_FDCdEdXVsP_QPlus->GetXaxis()->SetTitleSize(0.05);
      locHist_FDCdEdXVsP_QPlus->GetYaxis()->SetTitleSize(0.05);
      locHist_FDCdEdXVsP_QPlus->GetXaxis()->SetLabelSize(0.05);
      locHist_FDCdEdXVsP_QPlus->GetYaxis()->SetLabelSize(0.05);
      locHist_FDCdEdXVsP_QPlus->Draw("COLZ");
   }

   locCanvas->cd(4);
   gPad->SetTicks();
   gPad->SetGrid();
   if(locHist_FDCdEdXVsP_QMinus != NULL)
   {
      locHist_FDCdEdXVsP_QMinus->GetXaxis()->SetTitleSize(0.05);
      locHist_FDCdEdXVsP_QMinus->GetYaxis()->SetTitleSize(0.05);
      locHist_FDCdEdXVsP_QMinus->GetXaxis()->SetLabelSize(0.05);
      locHist_FDCdEdXVsP_QMinus->GetYaxis()->SetLabelSize(0.05);
      locHist_FDCdEdXVsP_QMinus->Draw("COLZ");
   }
}