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LCIOConversions: fix attaching SimCaloHit collections to event #1019

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merged 1 commit into from
Nov 17, 2022
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LCIOConversions: fix attaching SimCaloHit collections to event #1019

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15 changes: 13 additions & 2 deletions DDG4/lcio/LCIOConversions.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -179,13 +179,21 @@ namespace dd4hep {
Geant4Calorimeter::Hit>::operator()(const arg_t& args) const {
typedef Geant4HitData::Contributions Contributions;
Geant4HitCollection* coll = args.second;
string hc_nam = coll->GetName();
Geant4Sensitive* sd = coll->sensitive();
size_t nhits = coll->GetSize();
string dsc = encoding(sd->sensitiveDetector());
Geant4ParticleMap* pm = args.first->event().extension<Geant4ParticleMap>();
lcio::LCEventImpl* lc_evt = args.first->event().extension<lcio::LCEventImpl>();
EVENT::LCCollection* lc_parts = lc_evt->getCollection(lcio::LCIO::MCPARTICLE);
lcio::LCCollectionVec* lc_coll = new lcio::LCCollectionVec(lcio::LCIO::SIMCALORIMETERHIT);
lcio::LCCollectionVec* lc_coll = nullptr;
bool isNewCollection = false;
try {
lc_coll = static_cast<lcio::LCCollectionVec*>(lc_evt->getCollection(hc_nam));
} catch (lcio::DataNotAvailableException &e) {
lc_coll = new lcio::LCCollectionVec(lcio::LCIO::SIMCALORIMETERHIT);
isNewCollection = true;
}
UTIL::CellIDEncoder<SimCalorimeterHit> decoder(dsc,lc_coll);
int hit_creation_mode = sd->hitCreationMode();

Expand All @@ -194,7 +202,7 @@ namespace dd4hep {
else
lc_coll->setFlag(UTIL::make_bitset32(LCIO::CHBIT_LONG,LCIO::CHBIT_ID1));

lc_coll->reserve(nhits);
lc_coll->reserve(nhits + lc_coll->getNumberOfElements());
if ( sd->hasProperty("HitCreationMode") ) {
hit_creation_mode = sd->property("HitCreationMode").value<int>();
}
Expand Down Expand Up @@ -225,6 +233,9 @@ namespace dd4hep {
}
}
}
if(isNewCollection) {
lc_evt->addCollection(lc_coll, hc_nam);
}
return lc_coll;
}

Expand Down