JShowerMCEvt.cc

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#include <string>
#include <iostream>
#include <iomanip>
 
#include "km3net-dataformat/offline/Head.hh"
#include "km3net-dataformat/offline/MultiHead.hh"
#include "km3net-dataformat/offline/Evt.hh"
#include "km3net-dataformat/tools/time_converter.hh"
 
#include "JAAnet/JHead.hh"
#include "JAAnet/JHeadToolkit.hh"
#include "JAAnet/JAAnetToolkit.hh"
#include "JDAQ/JDAQEventIO.hh"
#include "JDAQ/JDAQTimesliceIO.hh"
#include "JDAQ/JDAQSummarysliceIO.hh"
#include "JTrigger/JTriggerParameters.hh"
#include "JSupport/JTriggeredFileScanner.hh"
#include "JSupport/JFileRecorder.hh"
#include "JSupport/JMonteCarloFileSupportkit.hh"
#include "JSupport/JSupport.hh"
#include "JSupport/JMeta.hh"
#include "JPhysics/JGeanz.hh"
 
#include "JReconstruction/JEvt.hh"
#include "JReconstruction/JEvtToolkit.hh"
 
#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"
 
 
/**
 * \file
 *
 * Auxiliary program to store Monte Carlo information from a neutrino or the primary electron in JFIT::JEvt format.
 * By default the neutrino is considered, a bool variable allows to select the primary electron instead.
 *
 * \author mdejong, adomi
 */
int main(int argc, char **argv)
{
  using namespace std;
  using namespace JPP;
  using namespace KM3NETDAQ;
 
  typedef JTYPELIST<JAllTypes_t, JEvt>::typelist  typelist;
 
  JTriggeredFileScanner<> inputFile;
  JFileRecorder<typelist> outputFile;
  JLimit_t&      numberOfEvents = inputFile.getLimit();
  int            debug;
  bool           take_electron;
 
  try {
 
    JParser<> zap("Auxiliary program to store Monte Carlo true shower in format for subsequent fits.");
 
    zap['f'] = make_field(inputFile, "output of JTriggerEfficiency[.sh]");
    zap['o'] = make_field(outputFile)          = "mcevt.root";
    zap['n'] = make_field(numberOfEvents)      = JLimit::max();
    zap['d'] = make_field(debug)               = 2;
    zap['e'] = make_field(take_electron);
 
    zap(argc, argv);
  }
  catch(const exception& error) {
    FATAL(error.what() << endl);
  }
 
 
  const Vec offset = getOffset(getHeader(inputFile));
 
  outputFile.open();
 
  outputFile.put(JMeta(argc, argv));
  
  while (inputFile.hasNext()) {
 
    STATUS("event: " << setw(10) << inputFile.getCounter() << '\r'); DEBUG(endl);
 
    JTriggeredFileScanner<>::multi_pointer_type ps = inputFile.next();
 
    const JDAQEvent* tev   = ps; 
    const Evt*       event = ps;
    JEvt             out;
 
    const time_converter converter(*event, *tev);
 
    vector<Trk>::const_iterator fermion;
    
    if(!take_electron) fermion = find_if(event->mc_trks.begin(), event->mc_trks.end(), is_neutrino);
    else fermion = find_if(event->mc_trks.begin(), event->mc_trks.end(), is_electron);
 
    if (fermion != event->mc_trks.end()) {
 
      // if fermion = neutrino => fermion position = neutrino interaction vertex
      double time = converter.putTime();
      JVector3D position = getPosition(*fermion);
 
      // if fermion = electron => fermion position and time = EM shower brightest point 
      if(take_electron){
        JVector3D electron_dir = getDirection(*fermion);
        double shower_elongation = geanz.getMaximum(fermion->E);
        electron_dir *= shower_elongation;
        position.add(electron_dir);
        time += (shower_elongation * getInverseSpeedOfLight());
      }
 
      JTrack3D td(position, getDirection(*fermion), time);
      JTrack3E ta(td, fermion->E);
 
      ta.add(getPosition(offset));
 
      out.push_back(getFit(JMCEVT, ta, 0, 0.0, ta.getE()));
 
    }
 
    outputFile.put(out);
  } 
  STATUS(endl);
 
  JMultipleFileScanner<JRemove<typelist, JEvt>::typelist> io(inputFile);
 
  io >> outputFile;
 
  outputFile.close();
}