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simple_info_plot_histograms.cxx 5.6 KiB
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    //R__LOAD_LIBRARY($HOME/stow/development/lib/libGenDetectors.so)
    R__LOAD_LIBRARY(libGenDetectors.so)
    
    R__LOAD_LIBRARY(libfmt.so)
    #include "fmt/core.h"
    R__LOAD_LIBRARY(libDDG4IO.so)
    #include "DD4hep/Detector.h"
    #include "DDG4/Geant4Data.h"
    #include "DDRec/CellIDPositionConverter.h"
    #include "DDRec/SurfaceManager.h"
    #include "DD4hep/VolumeManager.h"
    #include "DD4hep/detail/Handle.inl"
    #include "DD4hep/detail/ObjectsInterna.h"
    #include "DD4hep/detail/DetectorInterna.h"
    #include "DD4hep/detail/VolumeManagerInterna.h"
    #include "DDRec/Surface.h"
    #include "DD4hep/Volumes.h"
    #include "DD4hep/DetElement.h"
    #include "DD4hep/NamedObject.h"
    #include "DD4hep/IDDescriptor.h"
    #include "DD4hep/ConditionsMap.h"
    #include "TGeoMatrix.h"
    #include "ROOT/RDataFrame.hxx"
    #include "Math/Vector3D.h"
    #include "Math/Vector4D.h"
    #include "Math/VectorUtil.h"
    #include "TCanvas.h"
    #include "TLegend.h"
    #include "TMath.h"
    #include "TRandom3.h"
    #include "TFile.h"
    #include "TH1F.h"
    #include "TH1D.h"
    #include "TTree.h"
    #include "TChain.h"
    #include <random>
    #include <iostream>
    
    void simple_info_plot_histograms(const char* fname = "sim_output/output_zdc_photons.root"){
    
      TChain* t = new TChain("EVENT");
      t->Add(fname);
    
      ROOT::RDataFrame d0(*t);//, {"ZDCHits","MCParticles"});
    
      dd4hep::Detector& detector = dd4hep::Detector::getInstance();
    
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      detector.fromCompact("./calorimeters/ZDC_example.xml");  
    
    
      //dd4hep::VolumeManager volman = detector.volumeManager();
      //volman.getVolumeManager(detector);
      dd4hep::VolumeManager volman = dd4hep::VolumeManager::getVolumeManager(detector);
    
      // Number of hits
      auto nhits = [] (std::vector<dd4hep::sim::Geant4Calorimeter::Hit*>& hits){ return (int) hits.size(); };
    
      // Cell ID
      auto cellID = [&] (const std::vector<dd4hep::sim::Geant4Calorimeter::Hit*>& hits) {
            std::vector<double> result;
            for(const auto& h: hits)
                    result.push_back(h->cellID);
      return result;
      };
    
      // Volume ID
      auto volID = [&] (const std::vector<dd4hep::sim::Geant4Calorimeter::Hit*>& hits) {
            std::vector<double> result;
            for(const auto& h: hits) {
    		auto detelement = volman.lookupDetElement(h->cellID);
    		result.push_back(detelement.volumeID());
    	}
      return result;
      };
    
      // Hit position X
      auto hit_x_position = [&] (const std::vector<dd4hep::sim::Geant4Calorimeter::Hit*>& hits) {
    	std::vector<double> result;
    	for(const auto& h: hits)
    		result.push_back(h->position.x()); //mm
      return result; 
      };
    
      // Hit position Y
      auto hit_y_position = [&] (const std::vector<dd4hep::sim::Geant4Calorimeter::Hit*>& hits) {
            std::vector<double> result;
            for(const auto& h: hits)
    		result.push_back(h->position.y()); //mm
      return result;
      };
    
      // Hit position Z
      auto hit_z_position = [&] (const std::vector<dd4hep::sim::Geant4Calorimeter::Hit*>& hits) {
            std::vector<double> result;
            for(const auto& h: hits)
    		result.push_back(h->position.z()); //mm
      return result;
      };
    
      // Energy deposition
      auto e_dep = [&] (const std::vector<dd4hep::sim::Geant4Calorimeter::Hit*>& hits) {
            std::vector<double> result;
            for(const auto& h: hits)
    		result.push_back(h->energyDeposit); //GeV
      return result;
      };
    
      auto d1 = d0.Define("nhits", nhits, {"ZDCHits"})
    	      .Define("cellID", cellID, {"ZDCHits"})
    	      .Define("volID", volID, {"ZDCHits"})
        	      .Define("hit_x_position", hit_x_position, {"ZDCHits"})
    	      .Define("hit_y_position", hit_y_position, {"ZDCHits"})
                  .Define("hit_z_position", hit_z_position, {"ZDCHits"})
    	      .Define("e_dep", e_dep, {"ZDCHits"})
      	      ;
    
      // Define Histograms
      auto h0 = d1.Histo1D({"h0", "nhits histogram; nhits; Events", 100, 0,5000}, "nhits");
      auto h1 = d1.Histo1D({"h1", "hit_x_position histogram; hit X position [mm]; Events", 60,-30,30}, "hit_x_position");
      auto h2 = d1.Histo1D({"h2", "hit_y_position histogram; hit Y position [mm]; Events", 100,-30,80}, "hit_y_position");
      auto h3 = d1.Histo1D({"h3", "hit_z_position histogram; hit Z position [mm]; Events", 100,1000,1300}, "hit_z_position");
      auto h4 = d1.Histo1D({"h4", "energy deposition histogram; energy deposition [GeV]; Events", 100,0,300}, "e_dep");
      auto h5 = d1.Histo1D({"h5", "volume ID; volumeID; Events", 92,-0.5,92.5}, "volID");
    
      auto n0 = d1.Filter([](int n){ return (n>0); },{"nhits"}).Count();
    
      d1.Snapshot("info_EVENT","./calorimeters/info_zdc_photons.root");
      std::cout << *n0 << " events with nonzero hits\n";
    
      TCanvas *c1 = new TCanvas("c1","c1",800,600);
      c1->SetLogy(1);
      h0->GetYaxis()->SetTitleOffset(1.4);
      h0->SetLineWidth(2);
      h0->SetLineColor(kBlack);
      h0->DrawClone();
      c1->SaveAs("./calorimeters/nhits_histo_zdc_photons.png");
    
      TCanvas *c2 = new TCanvas("c2","c2",1000,1000);
      c2->Divide(2,2);
      c2->cd(1);
      h1->GetYaxis()->SetTitleOffset(1.7);
      h1->SetLineWidth(2);
      h1->SetLineColor(kBlack);
      h1->DrawClone();
    
      c2->cd(2);
      h2->GetYaxis()->SetTitleOffset(1.7);
      h2->SetLineWidth(2);
      h2->SetLineColor(kBlack);  
      h2->DrawClone();
    
      c2->cd(3);
      h3->GetYaxis()->SetTitleOffset(1.7);
      h3->SetLineWidth(2);
      h3->SetLineColor(kBlack);  
      h3->DrawClone();
      c2->SaveAs("./calorimeters/hit_postion_histo_zdc_photons.png");
    
      TCanvas *c3 = new TCanvas("c3","c3",600,600);
      c3->cd();
      c3->SetLogy(1);
      h4->GetYaxis()->SetTitleOffset(1.4);
      h4->SetLineWidth(2);
      h4->SetLineColor(kBlack);
      h4->DrawClone();
      c3->SaveAs("./calorimeters/edep_histo_zdc_photons.png");
    
      TCanvas *c4 = new TCanvas("c4","c4",600,600);
      c4->SetLogy(0);
      h5->GetYaxis()->SetTitleOffset(2.0);
      h5->SetLineWidth(2);
      h5->SetLineColor(kBlack);
      h5->DrawClone();
      c4->SaveAs("./calorimeters/volID_histo_zdc_photons.png");
    
      if(*n0<5) {
        std::quick_exit(1);
      }
    }