pfRICH/scripts/hit-map-ftbf-1x1.C

0001
0002 // ? export LD_LIBRARY_PATH=/home/ayk/eic/EicSandbox/build/lib:${LD_LIBRARY_PATH}
0003 //   export LD_LIBRARY_PATH=/home/ayk/eic/irt/build/lib:${LD_LIBRARY_PATH}
0004 //
0005 //   root -l './hit-map-ftbf-1x1.C("pfrich.root")'
0006 //
0007
0008 void hit_map_ftbf_1x1(const char *dfname, const char *cfname = 0)
0009 {
0010   auto fcfg  = new TFile(cfname ? cfname : dfname);
0011   auto geometry = dynamic_cast<CherenkovDetectorCollection*>(fcfg->Get("CherenkovDetectorCollection"));
0012   auto fdata = new TFile(dfname);
0013   TTree *t = dynamic_cast<TTree*>(fdata->Get("t"));
0014   auto event = new CherenkovEvent();
0015   t->SetBranchAddress("e", &event);
0016
0017   int nEvents = t->GetEntries();
0018
0019   unsigned dim = 32;
0020   double pitch = 3.25, size = dim*pitch;
0021   auto hxy = new TH2D("hxy", "", dim, -size/2, size/2, dim, -size/2, size/2);
0022
0023   for(unsigned ev=0; ev<nEvents; ev++) {
0024     t->GetEntry(ev);
0025
0026     for(auto particle: event->ChargedParticles()) {
0027
0028       for(auto rhistory: particle->GetRadiatorHistory()) {
0029     auto history  = particle->GetHistory (rhistory);
0030
0031     for(auto photon: history->Photons()) {
0032       if (!photon->WasDetected() ) continue;
0033
0034       TVector3 phx = photon->GetDetectionPosition();
0035       //printf("%f\n", phx.Z());
0036       if (phx.Z() > -1000) hxy->Fill(phx.X(), phx.Y());
0037     } //for photon
0038       } //for rhistory
0039     } //for particle
0040   } //for ev
0041
0042   gStyle->SetOptStat(0);
0043   auto cv = new TCanvas("cv", "", 1000, 1000);
0044   hxy->GetXaxis()->SetTitle("Sensor plane X, [mm]");
0045   hxy->GetYaxis()->SetTitle("Sensor plane Y, [mm]");
0046   hxy->GetXaxis()->SetTitleOffset(1.20);
0047   hxy->GetYaxis()->SetTitleOffset(1.40);
0048   //hxy->SetMinimum(3);
0049   //hxy->SetMaximum(500);
0050   hxy->Draw("COL");
0051 } // hit_map_ftbf_1x1()