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ITS: set track patterns for clusters and MC #6443

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ITS: set track patterns for clusters and MC #6443

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5 changes: 4 additions & 1 deletion DataFormats/Detectors/ITSMFT/ITS/include/DataFormatsITS/TrackITS.h
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Original file line number Diff line number Diff line change
Expand Up @@ -106,7 +106,7 @@ class TrackITSExt : public TrackITS
///< heavy version of TrackITS, with clusters embedded
public:
static constexpr int MaxClusters = 16; /// Prepare for overlaps and new detector configurations
using TrackITS::TrackITS; // inherit base constructors
using TrackITS::TrackITS; // inherit base constructors

TrackITSExt(o2::track::TrackParCov&& parCov, short ncl, float chi2,
o2::track::TrackParCov&& outer, std::array<int, MaxClusters> cls)
Expand All @@ -128,6 +128,9 @@ class TrackITSExt : public TrackITS
{
if (newCluster) {
getClusterRefs().setEntries(getNumberOfClusters() + 1);
uint16_t pattern = getPattern();
pattern |= 0x1 << layer;
setPattern(pattern);
}
mIndex[layer] = idx;
}
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15 changes: 14 additions & 1 deletion Detectors/ITSMFT/ITS/tracking/src/Tracker.cxx
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Expand Up @@ -583,9 +583,22 @@ void Tracker::computeTracksMClabels(const ROframe& event)
count = 1;
}
}
track.setExternalClusterIndex(iCluster, event.getClusterExternalIndex(iCluster, index));
}

uint8_t patt{0};
// set fake clusters pattern
for (int ic{TrackITSExt::MaxClusters}; ic--;) {
auto clid = track.getClusterIndex(ic);
if (clid != constants::its::UnusedIndex) {
const MCCompLabel& currentLabel = event.getClusterLabels(ic, clid);
if (currentLabel != maxOccurrencesValue) {
patt |= 0x1 << ic; // if cluster label is different from main label
}
track.setExternalClusterIndex(ic, event.getClusterExternalIndex(ic, clid));
}
}

track.setUserField(patt);
if (isFakeTrack) {
maxOccurrencesValue.setFakeFlag();
}
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