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Merged
kjplows merged 1 commit into from
Oct 1, 2025
Merged

Add truth matching info to CRT hits #586

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6 changes: 6 additions & 0 deletions sbncode/CAFMaker/CAFMakerParams.h
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Original file line number Diff line number Diff line change
Expand Up @@ -320,6 +320,12 @@ namespace caf
"crthit" // icarus
};

Atom<string> CRTSimChanLabel {
Name("CRTSimChanLabel"),
Comment("Label of AuxDetSimChannels."),
"genericcrt" // icarus
};

Atom<string> CRTTrackLabel {
Name("CRTTrackLabel"),
Comment("Label of sbn CRT tracks."),
Expand Down
64 changes: 62 additions & 2 deletions sbncode/CAFMaker/CAFMaker_module.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -140,6 +140,7 @@
#include "sbnanaobj/StandardRecord/Flat/FlatRecord.h"
#include "lardataobj/RawData/ExternalTrigger.h"
#include "lardataobj/RawData/TriggerData.h"
#include "lardataobj/Simulation/AuxDetSimChannel.h"

// // CAFMaker
#include "sbncode/CAFMaker/AssociationUtil.h"
Expand Down Expand Up @@ -287,6 +288,11 @@ class CAFMaker : public art::EDProducer {
std::vector<std::vector<geo::BoxBoundedGeo>> fTPCVolumes;
std::vector<geo::BoxBoundedGeo> fActiveVolumes;

// CRT geometry info
//
// ICARUS
std::map<std::pair<int, int>, int> fFEBChannel2AuxDetID;

// random number generator for fake reco
CLHEP::HepRandomEngine& fFakeRecoRandomEngine;

Expand Down Expand Up @@ -315,6 +321,7 @@ class CAFMaker : public art::EDProducer {
double GetBlindPOTScale() const;

void InitVolumes(); ///< Initialize volumes from Gemotry service
void InitCRTMapping(); ///< Initialize CRT mapping

void FixPMTReferenceTimes(StandardRecord &rec, double PMT_reference_time);
void FixCRTReferenceTimes(StandardRecord &rec, double CRTT0_reference_time, double CRTT1_reference_time);
Expand Down Expand Up @@ -423,6 +430,9 @@ class CAFMaker : public art::EDProducer {
// setup volume definitions
InitVolumes();

// setup CRT mapping
InitCRTMapping();

fSaveGENIEEventRecord = fParams.SaveGENIEEventRecord();

}
Expand Down Expand Up @@ -596,6 +606,36 @@ void CAFMaker::FixCRTReferenceTimes(StandardRecord &rec, double CRTT0_reference_

}

void CAFMaker::InitCRTMapping() {

// ICARUS
cet::search_path searchPath("FW_SEARCH_PATH");
std::string fullFileName;
searchPath.find_file("feb_map.txt",fullFileName);
std::ifstream fin;
fin.open(fullFileName, std::ios::in);

if (fin.good()) {
std::string line;

while(std::getline(fin,line)) {
std::vector<std::string> row;
std::string word;

std::stringstream s(line);
while (std::getline(s, word, ',')) {
row.push_back(word);
}
int auxDetID = std::stoi(row[0]); // auxDetID
int mac5 = std::stoi(row[1]); // FEB ID
int chan = std::stoi(row[2]); // FEB channel
fFEBChannel2AuxDetID[std::make_pair(mac5, chan)] = auxDetID;
}

fin.close();
}
}

void CAFMaker::InitVolumes() {
const geo::GeometryCore *geometry = lar::providerFrom<geo::Geometry>();

Expand Down Expand Up @@ -1649,16 +1689,36 @@ void CAFMaker::produce(art::Event& evt) noexcept {
caf::SRSBNDFrameShiftInfo srsbndframeshiftinfo;
caf::SRSBNDTimingInfo srsbndtiminginfo;

// Mapping of (feb, channel) to truth information (AuxDetSimChannel) -- filled for ICARUS
std::map<std::pair<int, int>, sim::AuxDetSimChannel> crtsimchanmap;

if(fDet == kICARUS)
{
art::Handle<std::vector<sbn::crt::CRTHit>> crthits_handle;
GetByLabelStrict(evt, fParams.CRTHitLabel(), crthits_handle);

art::Handle<std::vector<sim::AuxDetSimChannel>> auxdetsimchan_handle;
GetByLabelStrict(evt, fParams.CRTSimChanLabel(), auxdetsimchan_handle);

// fill into event
if (crthits_handle.isValid()) {
const std::vector<sbn::crt::CRTHit> &crthits = *crthits_handle;

std::vector<sim::AuxDetSimChannel> empty;
const std::vector<sim::AuxDetSimChannel> &crtsimchanvec = (auxdetsimchan_handle.isValid()) ? *auxdetsimchan_handle : empty;
// Turn the AuxDetSimChannel's into a map that can be looked up from a CRT Hit
for (const sim::AuxDetSimChannel &crtsimchan: crtsimchanvec) {
for (auto const &map_pair: fFEBChannel2AuxDetID) {
if (map_pair.second == (int)crtsimchan.AuxDetID()) {
crtsimchanmap[map_pair.first] = crtsimchan;
break;
}
}
}

for (unsigned i = 0; i < crthits.size(); i++) {
srcrthits.emplace_back();
FillCRTHit(crthits[i], fParams.CRTUseTS0(), CRT_T0_reference_time, CRT_T1_reference_time, srcrthits.back());
FillCRTHit(crthits[i], fParams.CRTUseTS0(), CRT_T0_reference_time, CRT_T1_reference_time, crtsimchanmap, srcrthits.back());
}
}

Expand Down Expand Up @@ -2318,7 +2378,7 @@ void CAFMaker::produce(art::Event& evt) noexcept {
crthittagginginfo = fmCRTHitMatchInfo.at(iPart);
}

FillTrackCRTHit(fmCRTHitMatch.at(iPart), crthitmatch, crthittagginginfo, fParams.CRTUseTS0(), CRT_T0_reference_time, CRT_T1_reference_time, trk);
FillTrackCRTHit(fmCRTHitMatch.at(iPart), crthitmatch, crthittagginginfo, fParams.CRTUseTS0(), CRT_T0_reference_time, CRT_T1_reference_time, crtsimchanmap, trk);
}
// NOTE: SEE TODO AT fmCRTTrackMatch
if (fmCRTTrackMatch.isValid() && fDet == kICARUS) {
Expand Down
50 changes: 49 additions & 1 deletion sbncode/CAFMaker/FillReco.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,7 @@ namespace caf
bool use_ts0,
int64_t CRT_T0_reference_time, // ns, signed
double CRT_T1_reference_time, // us
const std::map<std::pair<int, int>, sim::AuxDetSimChannel> &crtsimchanmap,
caf::SRCRTHit &srhit,
bool allowEmpty) {

Expand All @@ -86,6 +87,52 @@ namespace caf
srhit.pe = hit.peshit;
srhit.plane = hit.plane;

// lookup truth matching information
std::map<int, float> true_energy;
std::set<std::pair<int, int>> checked; // keep track of what AuxDetSimChannels we have looked at
for (auto const &mac_to_pes: hit.pesmap) {
int mac = (int)mac_to_pes.first;
for (const std::pair<int,float> &chan_pe: mac_to_pes.second) {
int chan = chan_pe.first;

// check for the 3-pos Minos ("m") modules, or the 1-pos other modules
bool is_minos_module = mac < 94;
int pos = is_minos_module ? (chan/10 + 1) : 1;

std::pair<int, int> key {mac, pos};
if (checked.count(key)) continue; // already looked here

checked.insert(key);

if (crtsimchanmap.count(key)) {
const sim::AuxDetSimChannel &crtsimchan = crtsimchanmap.at(key);
for (const sim::AuxDetIDE &ide: crtsimchan.AuxDetIDEs()) {
double hit_time_us = srhit.time;
double tru_time_us = ide.entryT/1e3; // ns -> us

// 1us cut on truth matching
if (abs(hit_time_us - tru_time_us) < 1) {
// std::cout << "Hit at time: " << (srhit.time/1e3) << " " << (srhit.t0/1e3) << " " << (srhit.t1/1e3) << " pes: " << chan_pe.second << " of " << srhit.pe << " on FEB: " << mac << " channel: " << chan << " matched to AuxDetID: " << crtsimchan.AuxDetID() << " G4ID: " << ide.trackID << " E: " << ide.energyDeposited << " T: " << (ide.entryT/1e6) << std::endl;
true_energy[ide.trackID] += ide.energyDeposited;
}

}
}
}
}

// sort results by energy
std::vector<std::pair<float, int>> true_energy_list;
for (auto const &pair: true_energy) true_energy_list.push_back(std::make_pair(pair.second, pair.first));
std::sort(true_energy_list.begin(), true_energy_list.end(), std::greater<>());

// Save to the SRCRTHit truth
for (auto const &pair: true_energy_list) {
srhit.truth.match_e.push_back(pair.first);
srhit.truth.match_id.push_back(pair.second);
}
if (true_energy_list.size() > 0) srhit.truth.bestmatch_id = true_energy_list[0].second;

}

void FillCRTTrack(const sbn::crt::CRTTrack &track,
Expand Down Expand Up @@ -635,6 +682,7 @@ namespace caf
bool use_ts0,
int64_t CRT_T0_reference_time, // ns, signed
double CRT_T1_reference_time, // us
const std::map<std::pair<int, int>, sim::AuxDetSimChannel> &crtsimchanmap,
caf::SRTrack &srtrack,
bool allowEmpty)
{
Expand All @@ -661,7 +709,7 @@ namespace caf
srtrack.crthit.hit.plane = t0match[0]->fID;
}
if (hitmatch.size()) {
FillCRTHit(*hitmatch[0], use_ts0, CRT_T0_reference_time, CRT_T1_reference_time, srtrack.crthit.hit, allowEmpty);
FillCRTHit(*hitmatch[0], use_ts0, CRT_T0_reference_time, CRT_T1_reference_time, crtsimchanmap, srtrack.crthit.hit, allowEmpty);
}
}

Expand Down
3 changes: 3 additions & 0 deletions sbncode/CAFMaker/FillReco.h
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,7 @@
#include "lardataobj/AnalysisBase/T0.h"
#include "lardataobj/RecoBase/PFParticleMetadata.h"
#include "lardataobj/RecoBase/MCSFitResult.h"
#include "lardataobj/Simulation/AuxDetSimChannel.h"
#include "larrecodnn/CVN/func/Result.h"
#include "sbnobj/Common/Reco/Stub.h"
#include "sbnobj/Common/Reco/RangeP.h"
Expand Down Expand Up @@ -177,6 +178,7 @@ namespace caf
bool use_ts0,
int64_t CRT_T0_reference_time, // ns, signed
double CRT_T1_reference_time, // us
const std::map<std::pair<int, int>, sim::AuxDetSimChannel> &crtsimchanmap,
caf::SRTrack &srtrack,
bool allowEmpty = false);

Expand Down Expand Up @@ -250,6 +252,7 @@ namespace caf
bool use_ts0,
int64_t CRT_T0_reference_time, // ns, signed
double CRT_T1_reference_time, // us
const std::map<std::pair<int, int>, sim::AuxDetSimChannel> &crtsimchanmap,
caf::SRCRTHit &srhit,
bool allowEmpty = false);
void FillCRTTrack(const sbn::crt::CRTTrack &track,
Expand Down