JShowerFit.hh

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#ifndef JSHOWERFIT_INCLUDE
#define JSHOWERFIT_INCLUDE
 
#include <string>
#include <iostream>
#include <set>
#include <vector>
#include <algorithm>
#include <memory>
 
#include "TMatrixDSym.h"
#include "TMatrixDSymEigen.h"
 
#include "km3net-dataformat/online/JDAQTimeslice.hh"
#include "km3net-dataformat/online/JDAQSummaryslice.hh"
 
#include "JDetector/JModuleRouter.hh"
#include "JDetector/JPMTParametersMap.hh"
 
#include "JDynamics/JCoverage.hh"
 
#include "JTrigger/JHitR0.hh"
#include "JTrigger/JBuildL0.hh"
 
#include "JSupport/JSummaryRouter.hh"
 
#include "JFit/JPMTW0.hh"
#include "JFit/JShower3EZRegressor.hh"
#include "JFit/JFitToolkit.hh"
#include "JFit/JPoint4D.hh"
#include "JFit/JModel.hh"
#include "JFit/JGandalf.hh"
 
#include "JReconstruction/JHitW0.hh"
#include "JReconstruction/JEvt.hh"
#include "JReconstruction/JEvtToolkit.hh"
#include "JReconstruction/JShowerFitParameters_t.hh"
#include "JReconstruction/JEnergyCorrection.hh"
#include "JReconstruction/JModuleL0.hh"
 
 
/**
 * \author adomi, vcarretero
 */
namespace JRECONSTRUCTION {}
namespace JPP { using namespace JRECONSTRUCTION; }
  
namespace JRECONSTRUCTION {
 
  using KM3NETDAQ::JDAQEvent;
  using KM3NETDAQ::JDAQSummaryFrame;
  using JDETECTOR::JModuleRouter;
  using JDETECTOR::JPMTParametersMap;
  using JSUPPORT::JSummaryRouter;
  using JFIT::JRegressor;
  using JFIT::JEnergy;
  using JFIT::JShower3EZ;
  using JFIT::JGandalf;
  using JDYNAMICS::coverage_type;
 
 
  /**
   * class to handle the direction fit of the shower reconstruction, mainly dedicated for ORCA
   */
  class JShowerFit : 
    public JShowerFitParameters_t,
    public JRegressor<JShower3EZ, JGandalf>
  {
 
    typedef JRegressor<JShower3EZ, JGandalf>  JRegressor_t;
    typedef JModuleL0                         module_type;
    typedef std::vector<module_type>          detector_type;
    using JRegressor_t::operator();
    
  public:
 
 
    /**
     * Input data type.
     */
    struct input_type :
      public JDAQEventHeader
    {
      /**
       * Default constructor.
       */
      input_type() 
      {}
 
 
      /**
       * Constructor.
       *
       * \param  header         header
       * \param  in             start values
       * \param  coverage       coverage
       */
      input_type(const JDAQEventHeader& header,
                 const JEvt&            in,
                 const coverage_type&   coverage) :
        JDAQEventHeader(header),
        in(in),
        coverage(coverage)
      {}
 
      JEvt          in;
      detector_type data;
      coverage_type coverage;
    };
 
    /**
     * Parameterized constructor
     *
     * \param  parameters         parameters
     * \param  storage            storage
     * \param  pmtParameters      PMT parameters
     * \param  correct            energy correction
     * \param  debug              debug
     */
    JShowerFit(const JShowerFitParameters_t& parameters,
               const storage_type&           storage,
               const JPMTParametersMap&      pmtParameters,
               const JEnergyCorrection&      correct,
               const int                     debug = 0):
      JShowerFitParameters_t(parameters),
      JRegressor_t (storage),
      pmtParameters(pmtParameters),
      correct      (correct)
    {
      using namespace JPP;
      
      JRegressor_t::debug  = debug;
      JRegressor_t::T_ns.setRange(parameters.TMin_ns, parameters.TMax_ns);
      JRegressor_t::Vmax_npe = parameters.Vmax_npe;
      JRegressor_t::MAXIMUM_ITERATIONS = 1000;
      JRegressor_t::EPSILON = 1e-3;
      JRegressor_t::EPSILON_ABSOLUTE = true;
      
      this->parameters.resize(3);
 
      this->parameters[0] = JShower3EZ::pDX();
      this->parameters[1] = JShower3EZ::pDY();
      this->parameters[2] = JShower3EZ::pE();
 
      this->estimator.reset(getMEstimator(parameters.mestimator));
    }
 
    /**
     * Get input data.
     *
     * \param  router        module router
     * \param  summary       summary data
     * \param  event         event
     * \param  in            start values
     * \param  coverage      coverage
     * \return               input data
     */
    input_type getInput(const JModuleRouter&  router,
                        const JSummaryRouter& summary,
                        const JDAQEvent&      event,
                        const JEvt&           in,
                        const coverage_type&  coverage) const
    {
      using namespace std;
      using namespace JTRIGGER;
 
      input_type   input(event.getDAQEventHeader(), in, coverage);
 
      const JBuildL0 <JHitR0>   buildL0;
      map<int, vector<JHitR0> > data;
 
      const JDAQTimeslice timeslice(event, true);
 
      JSuperFrame2D<JHit> buffer;
 
      for (JDAQTimeslice::const_iterator i = timeslice.begin(); i != timeslice.end(); ++i) {
 
        if (router.hasModule(i->getModuleID())) {
 
          buffer(*i, router.getModule(i->getModuleID()));
 
          buildL0(buffer, back_inserter(data[i->getModuleID()]));
        }
      }
 
      for (const auto& module : router.getReference()) {
        if (!module.empty()) {
          input.data.push_back(module_type(module, summary.getSummaryFrame(module.getID(), R_Hz), data[module.getID()]));
        }
      }
 
      return input;
    }
 
    /**
     * Fit function.
     *
     * \param  input         input data
     * \return               fit results
     */
    JEvt operator()(const input_type& input)
    {
      using namespace std;
      using namespace JPP;
 
      JEvent event(JSHOWERCOMPLETEFIT);
 
      JEvt out;
      
      JEvt in = input.in;
 
      in.select(numberOfPrefits, qualitySorter);
 
      if (!in.empty()) {
        in.select(JHistory::is_event(in.begin()->getHistory()));
      }
 
      for (JEvt::const_iterator shower = in.begin(); shower != in.end(); ++shower) {
 
        vector<JPMTW0> data;
 
        const JPosition3D vertex(getPosition(*shower));
        const double      time = shower->getT();
        const double      distance = DMax_m  +  DStep_m * log10(shower->getE());
        const JRotation3D R(getDirection(*shower));
        
        for (const auto& module : input.data) {
 
          JPosition3D pos(module->getPosition());
 
          pos.sub(vertex);
 
          if (pos.getLength() < distance) {
 
            for (size_t i = 0; i != module->size(); ++i) {
 
              if (module.getStatus(i)) {
 
                const double t1 = time + pos.getLength() * getInverseSpeedOfLight() * getIndexOfRefraction();
 
                struct {
 
                  bool operator()(const JHitR0& hit) const
                  {
                    return (hit.getPMT() == pmt && T_ns(hit.getT()));
                  }
 
                  const JTimeRange T_ns;
                  const size_t     pmt;
 
                } match = { JRegressor_t::T_ns + t1, i };
 
                const JPMTIdentifier id(module->getID(), i);
 
                const JPMTParameters& wip = pmtParameters.getPMTParameters(id);
 
                const size_t ns = count_if(module.begin(), module.end(), match);
                const double QE = wip.QE;
                
                JPMT pmt = module->getPMT(i);
 
                pmt.sub(vertex);
                pmt.rotate(R);
                
                data.push_back(JPMTW0(pmt, QE, module.frame.getRate(i), ns));
              }
            }
          }
        }
            
 
        double chi2 = (*this)(JShower3EZ(JVertex3D(JVector3D(0,0,0), shower->getT()), JVersor3Z(), 
                                         shower->getE()), data.begin(), data.end());
          
        double NDF = getCount(data.begin(), data.end()) - this->parameters.size(); 
 
        JShower3E result(JShower3D(this->value.getVertex(), this->value.getDirection()), correct(this->value.getE()));
 
        // check error matrix
        bool status = true;
 
        for (size_t i = 0; i != this->V.size(); ++i) {
          if (std::isnan(this->V(i,i)) || this->V(i,i) < 0.0) {
            status = false;
          }
        }
        
        if (status) {
 
          result.rotate_back(R);
 
          result.add(vertex.getPosition());
          
 
          out.push_back(getFit(JHistory(shower->getHistory(), event()), result, getQuality(chi2), NDF, result.getE())); 
 
          out.rbegin()->setW(shower->getW());
 
          const size_t N = this->V.size();
 
          TMatrixDSym  M(N);
 
          for (size_t row = 0; row != N; ++row) {
            for (size_t col = 0; col != N; ++col) {
              M(row,col) = this->V(row,col);
            }
          }
 
          const TMatrixDSymEigen E(M);
          const TVectorD&        Y = E.GetEigenValues();
 
          out.rbegin()->setV(this->V.size(), this->V);  
 
          out.rbegin()->setW(JSHOWERFIT_LAMBDA,  Y.GetNrows() != 0 ? Y[0] : 0.0);
          out.rbegin()->setW(JSHOWERFIT_ENERGY,  this->value.getE());  // Uncorrected Energy
          
          out.rbegin()->setW(JPP_COVERAGE_ORIENTATION, input.coverage.orientation);
          out.rbegin()->setW(JPP_COVERAGE_POSITION,    input.coverage.position);
 
        }
      }
      
      // apply default sorter
 
      sort(out.begin(), out.end(), qualitySorter);
 
      copy(input.in.begin(), input.in.end(), back_inserter(out));
      
      return out;
    }
    
 
    const JPMTParametersMap& pmtParameters;
    const JEnergyCorrection& correct;
  };
}
 
#endif