JGandalfx.cc

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#include <string>
#include <iostream>
#include <iomanip>
#include <vector>
#include <algorithm>

#include "evt/Head.hh"
#include "evt/Evt.hh"
#include "JDAQ/JDAQEvent.hh"
#include "JDAQ/JDAQTimeslice.hh"
#include "JDAQ/JDAQSummaryslice.hh"

#include "JDetector/JDetector.hh"
#include "JDetector/JDetectorToolkit.hh"
#include "JDetector/JModuleRouter.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/JMultipleFileScanner.hh"
#include "JSupport/JParallelFileScanner.hh"
#include "JSupport/JFileRecorder.hh"
#include "JSupport/JSupport.hh"
#include "JSupport/JMeta.hh"

#include "JFit/JHitW0.hh"
#include "JFit/JPMTW0.hh"
#include "JFit/JLine3Z.hh"
#include "JFit/JGandalf.hh"
#include "JFit/JLine3ZRegressor.hh"
#include "JFit/JFitToolkit.hh"
#include "JFit/JEvt.hh"
#include "JFit/JEvtToolkit.hh"
#include "JFit/JRegressor.hh"
#include "JFit/JFitParameters.hh"
#include "JFit/JModel.hh"

#include "JTools/JConstants.hh"
#include "JTools/JFunction1D_t.hh"
#include "JTools/JFunctionalMap_t.hh"

#include "JPhysics/JPDFTable.hh"
#include "JPhysics/JPDFToolkit.hh"

#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"


namespace {

  using namespace JPP;

  /**
   * Compare hits by PMT identifier and time.
   *
   * \param  first         first  hit
   * \param  second        second hit
   * \return               true if first before second; else false
   */
  inline bool compare(const JHitL0& first, const JHitL0& second)
  {
    if (std::equal_to<KM3NETDAQ::JDAQPMTIdentifier>()(first, second))
      return std::less<JTRIGGER::JHit>()(first, second);
    else
      return std::less<KM3NETDAQ::JDAQPMTIdentifier>()(first, second);
  }
}  


/**
 * \file
 *
 * Program to perform JFIT::JRegressor<JLine3Z,JGandalf> fit with I/O of JFIT::JEvt data.
 * \author mdejong
 */
int main(int argc, char **argv)
{
  using namespace std;
  using namespace JPP;
  using namespace KM3NETDAQ;
  
  typedef JParallelFileScanner< JTypeList<JDAQEvent, JEvt> >       JParallelFileScanner_t;
  typedef JParallelFileScanner_t::multi_pointer_type               multi_pointer_type;
  typedef JTYPELIST<JAllTypes_t, JEvt>::typelist                   typelist;

  JParallelFileScanner_t  inputFile;
  JFileRecorder<typelist> outputFile;
  JLimit_t&      numberOfEvents = inputFile.getLimit();
  string         detectorFile;
  string         pdfFile;
  double         roadWidth_m;
  double         R_Hz;
  size_t         numberOfPrefits;
  double         TTS_ns;
  double         E_GeV;
  int            debug;

  try { 

    JParser<> zap("Program to perform PDF fit of muon trajectory to data.");
    
    zap['f'] = make_field(inputFile);
    zap['o'] = make_field(outputFile)          = "gandalf.root";
    zap['a'] = make_field(detectorFile);
    zap['n'] = make_field(numberOfEvents)      = JLimit::max();
    zap['P'] = make_field(pdfFile);
    zap['R'] = make_field(roadWidth_m)         = numeric_limits<double>::max();
    zap['B'] = make_field(R_Hz)                = 6.0e3;
    zap['N'] = make_field(numberOfPrefits)     = 1;
    zap['T'] = make_field(TTS_ns);
    zap['E'] = make_field(E_GeV)               = 1.0e3;
    zap['d'] = make_field(debug)               = 1;
    
    zap(argc, argv);
  }
  catch(const exception& error) {
    FATAL(error.what() << endl);
  }



  cout.tie(&cerr);


  JDetector detector;

  try {
    load(detectorFile, detector);
  }
  catch(const JException& error) {
    FATAL(error);
  }

  const JModuleRouter moduleRouter(detector);


  typedef vector<JHitL0>  JDataL0_t;
  typedef vector<JHitW0>  JDataW0_t;
  const JBuildL0<JHitL0>  buildL0;


  typedef JRegressor<JLine3Z, JGandalf>  JRegressor_t;

  JRegressor_t::debug              = debug;
  JRegressor_t::T_ns.setRange(-50.0, +450.0);   // ns
  JRegressor_t::Vmax_npe           =   10.0;    // npe
  JRegressor_t::MAXIMUM_ITERATIONS = 10000;

  const double Rmax_m  = 100.0;     //!< hit selection [m]
  //const double Tmax_ns =  10.0;     //!< hit selection [ns]

  JRegressor_t fit(pdfFile, TTS_ns);

  fit.estimator.reset(new JMEstimatorLorentzian());

  fit.parameters.resize(5);

  fit.parameters[0] = JLine3Z::pX();
  fit.parameters[1] = JLine3Z::pY();
  fit.parameters[2] = JLine3Z::pT();
  fit.parameters[3] = JLine3Z::pDX();
  fit.parameters[4] = JLine3Z::pDY();

  if (fit.getRmax() < roadWidth_m) {

    roadWidth_m = fit.getRmax();

    WARNING("Set road width to [m] " << roadWidth_m << endl);
  }


  outputFile.open();

  outputFile.put(JMeta(argc, argv));

  while (inputFile.hasNext()) {

    STATUS("event: " << setw(10) << inputFile.getCounter() << '\r'); DEBUG(endl);

    multi_pointer_type ps = inputFile.next();

    JDAQEvent* tev = ps;
    JEvt*      evt = ps;
    JEvt       out;

    if (!evt->empty()) {

      JEvt::iterator __end = evt->end();
    
      if (numberOfPrefits > 0) {      
        advance(__end = evt->begin(), min(numberOfPrefits, evt->size()));
      }

      partial_sort(evt->begin(), __end, evt->end(), qualitySorter);


      JDataL0_t dataL0;
      
      buildL0(*tev, moduleRouter, true, back_inserter(dataL0));
      

      if (dataL0.size() >= fit.parameters.size()) {

        for (JEvt::const_iterator track = evt->begin(); track != __end; ++track) {

          const JRotation3D     R (getDirection(*track));
          const JLine1Z         tz(getPosition (*track).rotate(R), track->getT());
          const JModel<JLine1Z> match(tz, roadWidth_m, JRegressor_t::T_ns);

          // hit selection based on start value

          JDataW0_t data;
          
          multiset<JDAQPMTIdentifier> top;

          for (JDataL0_t::const_iterator i = dataL0.begin(); i != dataL0.end(); ++i) {
            
            JHitW0 hit(*i, R_Hz);
            
            hit.rotate(R);

            if (match(hit)) {

              data.push_back(hit);

              if (tz.getDistance(hit) <= Rmax_m) {
                top.insert(hit.getPMTIdentifier());
              }
            }
          }
          
          // select first hit
          
          sort(data.begin(), data.end(), compare);
          
          JDataW0_t::iterator __end = unique(data.begin(), data.end(), equal_to<JDAQPMTIdentifier>());


          vector<JPMTW0> buffer;

          for (JDetector::const_iterator module = detector.begin(); module != detector.end(); ++module) {

            JPosition3D pos(module->getPosition());
            
            pos.rotate(R);
            
            if (tz.getDistance(pos) <= Rmax_m) {
              
              for (unsigned int i = 0; i != module->size(); ++i) {
                
                const JDAQPMTIdentifier id(module->getID(), i);
                
                JPMT pmt(module->getPMT(i));
                
                pmt.rotate(R);

                buffer.push_back(JPMTW0(pmt, R_Hz, top.count(id)));
              }
            }
          }



          const int NDF = distance(data.begin(), __end) - fit.parameters.size();

          if (NDF >= 0) {

            // set fit parameters

            if (track->getE() > 0.1)
              fit.E_GeV   = track->getE();
            else
              fit.E_GeV   = E_GeV;

            const double chi2 = fit(JLine3Z(tz), data.begin(), __end);

            fit(fit.value, data.begin(), __end, buffer.begin(), buffer.end());
            
            JTrack3D tb(fit.value);
            
            tb.rotate_back(R);

            out.push_back(getFit(JMUONGANDALF, tb, getQuality(chi2), NDF));

            // set additional weights

            out.rbegin()->setW(JGANDALF_BETA0_RAD,            sqrt(fit.error.getDX() * fit.error.getDX()  +
                                                                   fit.error.getDY() * fit.error.getDY()));
            out.rbegin()->setW(JGANDALF_BETA1_RAD,            sqrt(fit.error.getDX() * fit.error.getDY()));
            out.rbegin()->setW(JGANDALF_CHI2,                 chi2);
            out.rbegin()->setW(JGANDALF_NUMBER_OF_HITS,       distance(data.begin(), __end));
            out.rbegin()->setW(JGANDALF_LAMBDA,               fit.lambda);
            out.rbegin()->setW(JGANDALF_NUMBER_OF_ITERATIONS, fit.numberOfIterations);
          }
        }

        // apply default sorter

        sort(out.begin(), out.end(), qualitySorter);
      }
    }

    outputFile.put(out);
  }
  STATUS(endl);

  JMultipleFileScanner<JRemove<typelist, JEvt>::typelist> io(inputFile);

  io >> outputFile;

  outputFile.close();
}