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Use expression columns for MC particles #6567

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Merged
jgrosseo merged 1 commit into from
Aug 2, 2021
Merged

Use expression columns for MC particles #6567

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68 changes: 47 additions & 21 deletions 68 Framework/Core/include/Framework/AnalysisDataModel.h
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Original file line number Diff line number Diff line change
Expand Up @@ -790,31 +790,57 @@ DECLARE_SOA_COLUMN(Vz, vz, float);
DECLARE_SOA_COLUMN(Vt, vt, float); //! Production time
DECLARE_SOA_DYNAMIC_COLUMN(Phi, phi, //! Phi
[](float px, float py) -> float { return static_cast<float>(M_PI) + std::atan2(-py, -px); });
DECLARE_SOA_DYNAMIC_COLUMN(Eta, eta, //! Pseudorapidity
[](float px, float py, float pz) -> float { return 0.5f * std::log((std::sqrt(px * px + py * py + pz * pz) + pz) / (std::sqrt(px * px + py * py + pz * pz) - pz)); });
DECLARE_SOA_DYNAMIC_COLUMN(Pt, pt, //! Transverse momentum in GeV/c
[](float px, float py) -> float { return std::sqrt(px * px + py * py); });
DECLARE_SOA_DYNAMIC_COLUMN(P, p, //! Total momentum in GeV/c
[](float px, float py, float pz) -> float { return std::sqrt(px * px + py * py + pz * pz); });
DECLARE_SOA_DYNAMIC_COLUMN(Y, y, //! Particle rapidity
[](float pz, float energy) -> float { return 0.5f * std::log((energy + pz) / (energy - pz)); });
DECLARE_SOA_DYNAMIC_COLUMN(ProducedByGenerator, producedByGenerator, //! Particle produced by the generator or by the transport code
[](uint8_t flags) -> bool { return (flags & 0x1) == 0x0; });

// DECLARE_SOA_EXPRESSION_COLUMN(Phi, phi, float, //! Phi: NOTE this waits that the atan2 function is defined for expression columns
// static_cast<float>(M_PI) + natan2(-aod::mcparticle::py, -aod::mcparticle::px));
DECLARE_SOA_EXPRESSION_COLUMN(Eta, eta, float, //! Pseudorapidity, conditionally defined to avoid FPEs
ifnode((nsqrt(aod::mcparticle::px * aod::mcparticle::px +
aod::mcparticle::py * aod::mcparticle::py +
aod::mcparticle::pz * aod::mcparticle::pz) -
aod::mcparticle::pz) < static_cast<float>(1e-7),
ifnode(aod::mcparticle::pz < 0.f, -100.f, 100.f),
0.5f * nlog((nsqrt(aod::mcparticle::px * aod::mcparticle::px +
aod::mcparticle::py * aod::mcparticle::py +
aod::mcparticle::pz * aod::mcparticle::pz) +
aod::mcparticle::pz) /
(nsqrt(aod::mcparticle::px * aod::mcparticle::px +
aod::mcparticle::py * aod::mcparticle::py +
aod::mcparticle::pz * aod::mcparticle::pz) -
aod::mcparticle::pz))));
DECLARE_SOA_EXPRESSION_COLUMN(Pt, pt, float, //! Transverse momentum in GeV/c
nsqrt(aod::mcparticle::px* aod::mcparticle::px +
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aod::mcparticle::py * aod::mcparticle::py));
DECLARE_SOA_EXPRESSION_COLUMN(P, p, float, //! Total momentum in GeV/c
nsqrt(aod::mcparticle::px* aod::mcparticle::px +
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aod::mcparticle::py * aod::mcparticle::py +
aod::mcparticle::pz * aod::mcparticle::pz));
DECLARE_SOA_EXPRESSION_COLUMN(Y, y, float, //! Particle rapidity, conditionally defined to avoid FPEs
ifnode((aod::mcparticle::e - aod::mcparticle::pz) < static_cast<float>(1e-7),
ifnode(aod::mcparticle::pz < 0.f, -100.f, 100.f),
0.5f * nlog((aod::mcparticle::e + aod::mcparticle::pz) /
(aod::mcparticle::e - aod::mcparticle::pz))));
} // namespace mcparticle

DECLARE_SOA_TABLE(McParticles, "AOD", "MCPARTICLE", //! MC particle table
o2::soa::Index<>, mcparticle::McCollisionId,
mcparticle::PdgCode, mcparticle::StatusCode, mcparticle::Flags,
mcparticle::Mother0Id, mcparticle::Mother1Id,
mcparticle::Daughter0Id, mcparticle::Daughter1Id, mcparticle::Weight,
mcparticle::Px, mcparticle::Py, mcparticle::Pz, mcparticle::E,
mcparticle::Vx, mcparticle::Vy, mcparticle::Vz, mcparticle::Vt,
mcparticle::Phi<mcparticle::Px, mcparticle::Py>,
mcparticle::Eta<mcparticle::Px, mcparticle::Py, mcparticle::Pz>,
mcparticle::Pt<mcparticle::Px, mcparticle::Py>,
mcparticle::P<mcparticle::Px, mcparticle::Py, mcparticle::Pz>,
mcparticle::Y<mcparticle::Pz, mcparticle::E>,
mcparticle::ProducedByGenerator<mcparticle::Flags>);
DECLARE_SOA_TABLE_FULL(StoredMcParticles, "McParticles", "AOD", "MCPARTICLE", //! On disk version of the MC particle table
o2::soa::Index<>, mcparticle::McCollisionId,
mcparticle::PdgCode, mcparticle::StatusCode, mcparticle::Flags,
mcparticle::Mother0Id, mcparticle::Mother1Id,
mcparticle::Daughter0Id, mcparticle::Daughter1Id, mcparticle::Weight,
mcparticle::Px, mcparticle::Py, mcparticle::Pz, mcparticle::E,
mcparticle::Vx, mcparticle::Vy, mcparticle::Vz, mcparticle::Vt,
mcparticle::Phi<mcparticle::Px, mcparticle::Py>,
// mcparticle::Eta<mcparticle::Px, mcparticle::Py, mcparticle::Pz>,
mcparticle::ProducedByGenerator<mcparticle::Flags>);

DECLARE_SOA_EXTENDED_TABLE(McParticles, StoredMcParticles, "MCPARTICLE", //! Basic MC particle properties
// mcparticle::Phi,
mcparticle::Eta,
mcparticle::Pt,
mcparticle::P,
mcparticle::Y);

using McParticle = McParticles::iterator;

namespace mctracklabel
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3 changes: 3 additions & 0 deletions 3 Framework/Core/include/Framework/HistogramSpec.h
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Expand Up @@ -94,6 +94,9 @@ struct AxisSpec {
title(title_),
name(name_)
{
if (binMin_ > binMax_) {
LOG(FATAL) << "Defined ill-defined axis";
}
}

// first entry is assumed to be the number of bins; in case of variable size binning it must be set to zero
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2 changes: 2 additions & 0 deletions 2 Framework/Core/src/AODReaderHelpers.cxx
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Expand Up @@ -180,6 +180,8 @@ AlgorithmSpec AODReaderHelpers::aodSpawnerCallback(std::vector<InputSpec> reques
outputs.adopt(Output{origin, description}, maker(o2::aod::FwdTracksExtensionMetadata{}));
} else if (description == header::DataDescription{"FWDTRACKCOV"}) {
outputs.adopt(Output{origin, description}, maker(o2::aod::FwdTracksCovExtensionMetadata{}));
} else if (description == header::DataDescription{"MCPARTICLE"}) {
outputs.adopt(Output{origin, description}, maker(o2::aod::McParticlesExtensionMetadata{}));
} else {
throw runtime_error("Not an extended table");
}
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