#include <SimpleFlashAlgo.h>

Inheritance diagram for lightana::SimpleFlashAlgo:

Public Member Functions
	SimpleFlashAlgo (const std::string name)

void	Configure (const Config_t &p)

virtual	~SimpleFlashAlgo ()

LiteOpFlashArray_t	RecoFlash (const LiteOpHitArray_t ophits)

bool	Veto (double t) const

const std::vector< double > &	PESumArray () const

const double	TimeRes () const

Public Member Functions inherited from lightana::FlashAlgoBase
	FlashAlgoBase (const std::string name)

const std::string &	Name () const

virtual	~FlashAlgoBase ()

virtual void	Reset ()

Private Member Functions
double	TotalCharge (const std::vector< double > &PEs)

Private Attributes
double	_min_pe_flash

double	_min_pe_coinc

double	_min_mult_coinc

double	_integral_time

double	_veto_time

double	_time_res

double	_pre_sample

int	_tpc

std::vector< double >	_pesum_v

std::vector< double >	_pe_baseline_v

std::map< double, double >	_flash_veto_range_m

bool	_debug

std::vector< int >	_opch_to_index_v

std::vector< int >	_index_to_opch_v

Detailed Description

Definition at line 11 of file sbndcode/sbndcode/OpDetReco/OpFlash/FlashFinder/SimpleFlashAlgo.h.

Constructor & Destructor Documentation

lightana::SimpleFlashAlgo::SimpleFlashAlgo ( const std::string name )

Definition at line 12 of file sbndcode/sbndcode/OpDetReco/OpFlash/FlashFinder/SimpleFlashAlgo.cxx.

13 : FlashAlgoBase(name)

14 {}

lightana::FlashAlgoBase::FlashAlgoBase

FlashAlgoBase(const std::string name)

Definition: sbndcode/sbndcode/OpDetReco/OpFlash/FlashFinder/FlashAlgoBase.cxx:8

name

then echo fcl name

Definition: sbndpoms_genfclwithrunnumber_maker.sh:220

lightana::SimpleFlashAlgo::~SimpleFlashAlgo ( )

virtual

Definition at line 125 of file sbndcode/sbndcode/OpDetReco/OpFlash/FlashFinder/SimpleFlashAlgo.cxx.

126 {}

Member Function Documentation

void lightana::SimpleFlashAlgo::Configure ( const Config_t & p )

virtual

Implements lightana::FlashAlgoBase.

Definition at line 16 of file sbndcode/sbndcode/OpDetReco/OpFlash/FlashFinder/SimpleFlashAlgo.cxx.

     {
         Reset();
         _debug          = p.get<bool>("DebugMode",false);
         _min_pe_flash   = p.get<double>("PEThreshold",10);
         _min_pe_coinc   = p.get<double>("MinPECoinc",  5);
         _min_mult_coinc = p.get<double>("MinMultCoinc", 2);
         _integral_time = p.get<double>("IntegralTime",8);
         _pre_sample    = p.get<double>("PreSample",0.1);
         _veto_time     = p.get<double>("VetoSize",8.);
         _time_res      = p.get<double>("TimeResolution",0.03);
         _tpc           = p.get<int>("TPC");
         //_pe_baseline_v.clear();
         //_pe_baseline_v = p.get<std::vector<double> >("PEBaseline",_pe_baseline_v);
 
         if(_integral_time > _veto_time) {
             std::cerr << "Integral time cannot exceed veto time!" << std::endl;
             throw std::exception();
         }
         auto const range_start_v = p.get<std::vector<double> >("HitVetoRangeStart");
         auto const range_end_v   = p.get<std::vector<double> >("HitVetoRangeEnd");
         if(range_start_v.size() != range_end_v.size()) {
             std::cerr << "OpHit veto range start and end config value array have different length!" << std::endl;
             throw std::exception();
         }
         for(size_t i=0; i<range_start_v.size(); ++i) {
             if(range_start_v[i] >= range_end_v[i]) {
                 std::cerr << "OpHit veto range element " << i
                 << " have start time @ " << range_start_v[i]
                 << " being later than end time @ " << range_end_v[i]
                 << std::endl;
                 throw std::exception();
             }
             _flash_veto_range_m.emplace(range_end_v[i],range_start_v[i]);
         }
 
         // Check what PD to use
         std::vector<std::string> pd_to_use;
         pd_to_use = p.get<std::vector<std::string>>("PD", pd_to_use);
         std::vector<int> opch_to_use = PDNamesToList(pd_to_use);
 
         _index_to_opch_v.clear();
         _index_to_opch_v =  p.get<std::vector<int> >("OpChannel",_index_to_opch_v);
         if(_index_to_opch_v.empty()) {
 
             if(_tpc>=0) {
                 auto const opch_v = ListOpChannelsByTPC(_tpc);
                 _index_to_opch_v.reserve(opch_v.size());
                 for(auto const& v : opch_v) {
                     auto iter = std::find(opch_to_use.begin(), opch_to_use.end(), v);
                     if (iter != opch_to_use.end()) {
                         _index_to_opch_v.push_back(v);
                         // std::cout << "Going to use ch " << v << std::endl;
                     }
                 }
             }else{
                 auto opch_range = p.get<std::vector<int> >("OpChannelRange");
                 if(opch_range.size()!=2) {
                     std::cerr << "OpChannelRange must be a vector of length two!" << std::endl;
                     throw std::exception();
                 }else if(opch_range[0] > opch_range[1]) {
                     std::cerr << "OpChannelRange 0th element (" << opch_range[0]
                     << ") must be larger than the 1st element (" << opch_range[1]
                     << ")" << std::endl;
                     throw std::exception();
                 }
                 _index_to_opch_v.reserve(opch_range[1]-opch_range[0]+1);
                 for(int i=opch_range[0]; i<=opch_range[1]; ++i) {
                     auto iter = std::find(opch_to_use.begin(), opch_to_use.end(), i);
                     if (iter != opch_to_use.end()) {
                         _index_to_opch_v.push_back(i);
                     }
                 }
             }
         }
         size_t valid_id=0;
         std::set<size_t> duplicate;
         for(auto const& ch : _index_to_opch_v) {
             if(ch >= (int)(_opch_to_index_v.size())) _opch_to_index_v.resize(ch+1,-1);
             if(duplicate.find(ch) != duplicate.end()) {
                 std::cerr << "Channel number " << ch << " is duplicated!" << std::endl;
                 throw std::exception();
             }
             _opch_to_index_v[ch] = valid_id;
             valid_id += 1;
             duplicate.insert(ch);
         }
 
         if(_opch_to_index_v.empty()) {
             std::cerr << "Length of OpChannel array parameter is 0..." << std::endl;
             throw std::exception();
         }
         // std::cout << "Number of opch used to construct flashes: " << _index_to_opch_v.size() << std::endl;
         /*
         if(_pe_baseline_v.size() != duplicate.size()) {
           std::cout << "PEBaseline array length (" << _pe_baseline_v.size()
           << ") is not same as OpDet ID count (" << duplicate.size() << ")!" << std::endl;
           throw std::exception();
         }
         */
     }

const std::vector<double>& lightana::SimpleFlashAlgo::PESumArray ( ) const

inline

Definition at line 25 of file sbndcode/sbndcode/OpDetReco/OpFlash/FlashFinder/SimpleFlashAlgo.h.

25 { return _pesum_v; }

lightana::SimpleFlashAlgo::_pesum_v

std::vector< double > _pesum_v

Definition: sbndcode/sbndcode/OpDetReco/OpFlash/FlashFinder/SimpleFlashAlgo.h:41

LiteOpFlashArray_t lightana::SimpleFlashAlgo::RecoFlash ( const LiteOpHitArray_t ophits )

virtual

Implements lightana::FlashAlgoBase.

Definition at line 128 of file sbndcode/sbndcode/OpDetReco/OpFlash/FlashFinder/SimpleFlashAlgo.cxx.

                                                                                {
 
         Reset();
         size_t max_ch = _opch_to_index_v.size() - 1;
         size_t NOpDet = _index_to_opch_v.size();
 
         //static std::vector<double> pesum_v;
         static std::vector<double> mult_v;  //< this is not strictly a multiplicity of PMTs, but multiplicity of hits
         static std::vector<std::vector<double> > pespec_v;
         static std::vector<std::vector<unsigned int> > hitidx_v;
         double min_time=1.1e20;
         double max_time=1.1e20;
         for(auto const& oph : ophits) {
             if(max_time > 1.e20 || oph.peak_time > max_time) max_time = oph.peak_time;
             if(min_time > 1.e20 || oph.peak_time < min_time) min_time = oph.peak_time;
         }
         min_time -= 10* _time_res;
         max_time += 10* _time_res;
         if(_debug)
             std::cout << "T span: " << min_time << " => " << max_time << " ... " << (size_t)((max_time - min_time) / _time_res) << std::endl;
 
         size_t nbins_pesum_v = (size_t)((max_time - min_time) / _time_res) + 1;
         if(_pesum_v.size() < nbins_pesum_v) _pesum_v.resize(nbins_pesum_v,0);
         if(mult_v.size()   < nbins_pesum_v) mult_v.resize(nbins_pesum_v,0);
         if(pespec_v.size() < nbins_pesum_v) pespec_v.resize(nbins_pesum_v,std::vector<double>(NOpDet));
         if(hitidx_v.size() < nbins_pesum_v) hitidx_v.resize(nbins_pesum_v,std::vector<unsigned int>());
         for(size_t i=0; i<_pesum_v.size(); ++i) {
             _pesum_v[i] = 0;
             mult_v[i]  = 0;
             hitidx_v[i].clear();
             for(auto& v : pespec_v[i]) v=0;
         }
 
         // Fill _pesum_v
         for(size_t hitidx = 0; hitidx < ophits.size(); ++hitidx) {
             auto const& oph = ophits[hitidx];
             if(oph.channel > max_ch || _opch_to_index_v[oph.channel] < 0) {
                 if(_debug) std::cout << "Ignoring OpChannel " << oph.channel << std::endl;
                 continue;
             }
             if(Veto(oph.peak_time)) {
                 if(_debug) std::cout << "Ignoring hit @ time " << oph.peak_time << std::endl;
                 continue;
             }
             size_t index = (size_t)((oph.peak_time - min_time) / _time_res);
             // std::cout << "Ophit from ch " << oph.channel << " at time " << oph.peak_time << " with PE " << oph.pe << ", index " << index << std::endl;
             _pesum_v[index] += oph.pe;
             mult_v[index] += 1;
             pespec_v[index][_opch_to_index_v[oph.channel]] += oph.pe;
             hitidx_v[index].push_back(hitidx);
         }
 
         // Order by pe (above threshold)
         std::map<double,size_t> pesum_idx_map;
         for(size_t idx=0; idx<nbins_pesum_v; ++idx) {
             // std::cout <<  "    _pesum_v at " << idx << " is " << _pesum_v[idx] << ", _min_pe_coinc is " << _min_pe_coinc << std::endl;
             if(_pesum_v[idx] < _min_pe_coinc   ) continue;
             // std::cout <<  "    mult_v at " << idx << " is " << mult_v[idx] << ", _min_mult_coinc is " << _min_mult_coinc << std::endl;
             if(mult_v[idx]  < _min_mult_coinc ) continue;
             pesum_idx_map[1./(_pesum_v[idx])] = idx;
         }
 
         // Get candidate flash times
         std::vector<std::pair<size_t,size_t> > flash_period_v;
         std::vector<size_t> flash_time_v;
         size_t veto_ctr = (size_t)(_veto_time / _time_res);
         size_t default_integral_ctr = (size_t)(_integral_time / _time_res);
         size_t precount = (size_t)(_pre_sample / _time_res);
         flash_period_v.reserve(pesum_idx_map.size());
         flash_time_v.reserve(pesum_idx_map.size());
 
         double sum_baseline = 0;
         //for(auto const& v : _pe_baseline_v) sum_baseline += v;
 
         for(auto const& pe_idx : pesum_idx_map) {
 
           //auto const& pe  = 1./(pe_idx.first);
             auto const& idx = pe_idx.second;
 
             size_t start_time = idx;
             if(start_time < precount) start_time = 0;
             else start_time = idx - precount;
 
             // see if this idx can be used
             bool skip=false;
             size_t integral_ctr = default_integral_ctr;
             for(auto const& used_period : flash_period_v) {
                 if( start_time <= used_period.first && (start_time + veto_ctr) > used_period.first ) {
                     skip=true;
                     break;
                 }
                 if( used_period.first <= start_time && start_time < (used_period.first + veto_ctr) ) {
                     skip=true;
                     break;
                 }
                 if( used_period.first >= start_time && used_period.first < (start_time + integral_ctr) ) {
                     if(_debug) std::cout << "Truncating flash @ " << start_time
                         << " (previous flash @ " << used_period.first
                         << ") ... integral ctr change: " << integral_ctr
                         << " => " << used_period.first - start_time << std::endl;
 
                     integral_ctr = used_period.first - start_time;
                 }
                 if(_debug) {
                     std::cout << "Flash @ " << min_time + used_period.first * _time_res
                     << " => " << min_time + (used_period.first + used_period.second) * _time_res
                     << " does not interfare with THIS flash @ " << min_time + start_time * _time_res
                     << " => " << min_time + (start_time + integral_ctr) * _time_res << std::endl;
                 }
             }
             if(skip) {
                 if(_debug) std::cout << "Skipping a candidate @ " << min_time + start_time * _time_res << " as it is in a veto window!" <<std::endl;
                 continue;
             }
 
             // See if this flash is declarable
             double pesum = 0;
             for(size_t i=start_time; i<std::min(nbins_pesum_v,(start_time+integral_ctr)); ++i)
 
                 pesum += _pesum_v[i];
 
             if(pesum < (_min_pe_flash + sum_baseline)) {
                 if(_debug) std::cout << "Skipping a candidate @ " << start_time  << " => " << start_time + integral_ctr
                     << " as it got " << pesum
                     << " PE which is lower than threshold " << (_min_pe_flash + sum_baseline) << std::endl;
                 continue;
             }
 
             flash_period_v.push_back(std::pair<size_t,size_t>(start_time,integral_ctr));
             flash_time_v.push_back(idx);
         }
 
         // Construct flash
         LiteOpFlashArray_t res;
         for(size_t flash_idx=0; flash_idx<flash_period_v.size(); ++flash_idx) {
 
             auto const& start  = flash_period_v[flash_idx].first;
             auto const& period = flash_period_v[flash_idx].second;
             auto const& time   = flash_time_v[flash_idx];
 
             std::vector<double> pe_v(max_ch+1,0);
             for(size_t index=start; index<(start+period) && index<pespec_v.size(); ++index) {
 
                 for(size_t pmt_index=0; pmt_index<NOpDet; ++pmt_index)
 
                     pe_v[_index_to_opch_v[pmt_index]] += pespec_v[index][pmt_index];
 
             }
 
             for(size_t opch=0; opch<max_ch; ++opch) {
 
                 if(_opch_to_index_v[opch]<0) continue;
 
                 //pe_v[opch] -= _pe_baseline_v[_opch_to_index_v[opch]];
 
                 if(pe_v[opch]<0) pe_v[opch]=0;
 
             }
 
             std::vector<unsigned int> asshit_v;
             for(size_t index=start; index<(start+period) && index<pespec_v.size(); ++index) {
                 for(auto const& idx : hitidx_v[index])
                     asshit_v.push_back(idx);
             }
 
             if(_debug) {
                 std::cout << "Claiming a flash @ " << min_time + time * _time_res
                 << " : " << std::flush;
                 double tmpsum=0;
                 for(auto const& v : pe_v) { std::cout << v << " "; tmpsum +=v; }
                 std::cout << " ... sum = " << tmpsum << std::endl;
             }
 
             LiteOpFlash_t flash( min_time + time * _time_res,
                                 period * _time_res / 2.,
                                 _tpc,
                                 std::move(pe_v),
                                 std::move(asshit_v));
             res.emplace_back( std::move(flash) );
 
         }
         if(_debug) std::cout << std::endl;
         return res;
     }

const double lightana::SimpleFlashAlgo::TimeRes ( ) const

inline

Definition at line 27 of file sbndcode/sbndcode/OpDetReco/OpFlash/FlashFinder/SimpleFlashAlgo.h.

27 { return _time_res; }

lightana::SimpleFlashAlgo::_time_res

double _time_res

Definition: sbndcode/sbndcode/OpDetReco/OpFlash/FlashFinder/SimpleFlashAlgo.h:37

double lightana::SimpleFlashAlgo::TotalCharge ( const std::vector< double > & PEs )

private

bool lightana::SimpleFlashAlgo::Veto ( double t ) const

Definition at line 118 of file sbndcode/sbndcode/OpDetReco/OpFlash/FlashFinder/SimpleFlashAlgo.cxx.

     {
         auto iter = _flash_veto_range_m.lower_bound(t);
         if(iter == _flash_veto_range_m.end()) return false;
         return (t >= (*iter).second);
     }