software/JReconstruction/JMuonCompass.cc

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#include <string>
#include <iostream>
#include <iomanip>
#include <vector>
#include <set>
#include <algorithm>
#include <memory>
 
#include "TROOT.h"
#include "TFile.h"
#include "TH2D.h"
 
#include "km3net-dataformat/offline/Head.hh"
#include "km3net-dataformat/offline/Evt.hh"
 
#include "JDAQ/JDAQEventIO.hh"
#include "JDAQ/JDAQSummarysliceIO.hh"
 
#include "JDetector/JDetector.hh"
#include "JDetector/JDetectorToolkit.hh"
#include "JDetector/JModuleRouter.hh"
 
#include "JDynamics/JDynamics.hh"
 
#include "JTrigger/JHit.hh"
#include "JTrigger/JFrame.hh"
#include "JTrigger/JTimeslice.hh"
#include "JTrigger/JHitL0.hh"
#include "JTrigger/JBuildL0.hh"
#include "JTrigger/JTriggerParameters.hh"
 
#include "JSupport/JSupport.hh"
#include "JSupport/JParallelFileScanner.hh"
#include "JSupport/JSummaryFileRouter.hh"
#include "JSupport/JMeta.hh"
 
#include "JReconstruction/JEvt.hh"
#include "JReconstruction/JMuonGandalf.hh"
#include "JReconstruction/JMuonGandalfParameters_t.hh"
#include "JReconstruction/JMuonCompass.hh"
 
#include "JROOT/JRootToolkit.hh"
 
#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"
 
/**
 * \file
 *
 * Program to perform compass calibration using reconstructed muon trajectories.
 *
 * \author mdejong
 */
int main(int argc, char **argv)
{
  using namespace std;
  using namespace JPP;
  using namespace KM3NETDAQ;
  
  typedef JParallelFileScanner< JTypeList<JDAQEvent, JFIT::JEvt> > JParallelFileScanner_t;
  typedef JParallelFileScanner_t::multi_pointer_type               multi_pointer_type;
  typedef JTYPELIST<JCOMPASS::JOrientation,
                    JACOUSTICS::JEvt>::typelist                    calibration_types;
  typedef JMultipleFileScanner<calibration_types>                  JCalibration_t;
 
  JParallelFileScanner_t   inputFile;
  string                   outputFile;
  JLimit_t&                numberOfEvents = inputFile.getLimit();
  string                   detectorFile;
  JCalibration_t           calibrationFile;
  double                   Tmax_s;
  string                   pdfFile;
  JMuonGandalfParameters_t parameters;
  int                      debug;
 
  try { 
 
    parameters.numberOfPrefits = 1;
 
    JParser<> zap("Program to perform compass calibration using reconstructed muon trajectories.");
    
    zap['f'] = make_field(inputFile);
    zap['o'] = make_field(outputFile)          = "compass.root";
    zap['a'] = make_field(detectorFile);
    zap['+'] = make_field(calibrationFile)     = JPARSER::initialised();
    zap['T'] = make_field(Tmax_s)              = 100.0;
    zap['n'] = make_field(numberOfEvents)      = JLimit::max();
    zap['F'] = make_field(pdfFile);
    zap['@'] = make_field(parameters)          = JPARSER::initialised();
    zap['d'] = make_field(debug)               = 1;
    
    zap(argc, argv);
  }
  catch(const exception& error) {
    FATAL(error.what() << endl);
  }
 
 
  if (parameters.numberOfPrefits != 1) {
    WARNING("Number of prefits " << parameters.numberOfPrefits << " != " << 1 << endl);
  }
 
  JDetector detector;
 
  try {
    load(detectorFile, detector);
  }
  catch(const JException& error) {
    FATAL(error);
  }
 
  unique_ptr<JDynamics> dynamics;
 
  if (!calibrationFile.empty()) {
 
    try {
 
      dynamics.reset(new JDynamics(detector, Tmax_s));
 
      dynamics->load(calibrationFile);
    }
    catch(const exception& error) {
      FATAL(error.what());
    }
  }
 
  const JModuleRouter router(dynamics ? dynamics->getDetector() : detector);
 
  JSummaryFileRouter  summary(inputFile);
 
  const JMuonGandalf::storage_type storage(pdfFile, JTimeRange(parameters.TMin_ns, parameters.TMax_ns), parameters.TTS_ns);
 
  JMuonGandalf fit(parameters, storage, debug);
 
  typedef vector<JHitL0>  JDataL0_t;
  typedef vector<JHitW0>  JDataW0_t;
 
  const JBuildL0<JHitL0>  buildL0;
 
  const int nx = getNumberOfModules(detector, true);
  const int ny = 101;
 
  TH2D h2(h2_t, NULL, nx, -0.5, nx - 0.5, ny, -PI, +PI);
 
  while (inputFile.hasNext()) {
 
    STATUS("event: " << setw(10) << inputFile.getCounter() << '\r'); DEBUG(endl);
 
    multi_pointer_type ps = inputFile.next();
 
    JDAQEvent*  tev = ps;
    JFIT::JEvt* in  = ps;
 
    summary.update(*tev);
 
    if (dynamics) {
      dynamics->update(*tev);
    }
 
    in->select(parameters.numberOfPrefits, qualitySorter);
 
    JDataL0_t dataL0;
      
    buildL0(*tev, router, true, back_inserter(dataL0));
      
    for (JFIT::JEvt::const_iterator track = in->begin(); track != in->end(); ++track) {
 
      const JRotation3D  R (getDirection(*track));
      const JLine1Z      tz(getPosition (*track).rotate(R), track->getT());
      JRange<double>     Z_m;
 
      if (track->hasW(JSTART_LENGTH_METRES)) {
        Z_m = JZRange(0.0, track->getW(JSTART_LENGTH_METRES))  +  JRange<double>(parameters.ZMin_m, parameters.ZMax_m);
      }
 
      const JFIT::JModel<JLine1Z> match(tz, parameters.roadWidth_m, JRange<double>(parameters.TMin_ns, parameters.TMax_ns), Z_m);
 
      // hit selection based on start value
 
      map<int, JDataW0_t> data;
          
      for (JDataL0_t::const_iterator i = dataL0.begin(); i != dataL0.end(); ++i) {
            
        JHitW0 hit(*i, summary.getRate(*i, parameters.R_Hz));
            
        hit.rotate(R);
 
        if (match(hit)) {
          data[hit.getModuleID()].push_back(hit);
        }
      }
          
      const JLine3Z ta(tz);
 
      for (auto& i : data) {
 
        const JModule& module = router.getModule(i.first);
 
        // select first hit
 
        sort(i.second.begin(), i.second.end(), JHitL0::compare);
 
        JDataW0_t::iterator __end = unique(i.second.begin(), i.second.end(), equal_to<JDAQPMTIdentifier>());
 
        for (Int_t iy = 1; iy <= h2.GetYaxis()->GetNbins(); ++iy) {
 
          const double x = router.getIndex(i.first);
          const double y = h2.GetYaxis()->GetBinCenter(iy);
 
          const JRotation3Z Rz(y);
 
          double chi2 = 0.0;
 
          for (JDataW0_t::const_iterator p = i.second.begin(); p != __end; ++p) {
 
            JHitW0 hit(*p);
 
            hit.rotate_back(R);
 
            hit.sub(module.getPosition());
            hit.rotate(Rz);
            hit.add(module.getPosition());
 
            hit.rotate(R);
 
            chi2 += fit(ta, hit);
          }
 
          h2.Fill(x, y, chi2);
        }
      }
    }
  }
  STATUS(endl);
 
  TFile out(outputFile.c_str(), "recreate");
 
  putObject(out, JMeta(argc, argv));
 
  out << h2;
 
  out.Write();
  out.Close();
}