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Merge pull request #38906 from mmusich/FixGeomProd
[12.4.X] fix GeometryProducer and G4e examples
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137 changes: 137 additions & 0 deletions
137
TrackPropagation/Geant4e/test/SimpleGeant4ePropagatorTest.cc
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| #include "FWCore/Framework/interface/one/EDAnalyzer.h" | ||
| #include "FWCore/Framework/interface/ESHandle.h" | ||
| #include "FWCore/Framework/interface/Event.h" | ||
| #include "FWCore/Framework/interface/Frameworkfwd.h" | ||
| #include "FWCore/Framework/interface/MakerMacros.h" //For define_fwk_module | ||
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| #include "FWCore/MessageLogger/interface/MessageLogger.h" | ||
| #include "FWCore/ParameterSet/interface/ParameterSet.h" | ||
| #include "FWCore/Utilities/interface/InputTag.h" | ||
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| //- Timing | ||
| //#include "Utilities/Timing/interface/TimingReport.h" | ||
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| #include "Geometry/Records/interface/IdealGeometryRecord.h" | ||
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| //- Magnetic field | ||
| #include "MagneticField/Engine/interface/MagneticField.h" | ||
| #include "MagneticField/Records/interface/IdealMagneticFieldRecord.h" | ||
| #include "SimG4Core/MagneticField/interface/Field.h" | ||
| #include "SimG4Core/MagneticField/interface/FieldBuilder.h" | ||
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| //- Propagator | ||
| #include "TrackPropagation/Geant4e/interface/ConvertFromToCLHEP.h" | ||
| #include "TrackPropagation/Geant4e/interface/Geant4ePropagator.h" | ||
| #include "TrackingTools/TrajectoryState/interface/FreeTrajectoryState.h" | ||
| #include "TrackingTools/TrajectoryState/interface/TrajectoryStateOnSurface.h" | ||
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| #include "DataFormats/GeometryVector/interface/GlobalPoint.h" | ||
| #include "DataFormats/GeometryVector/interface/GlobalVector.h" | ||
| #include "TrackingTools/TrajectoryState/interface/TrajectoryStateOnSurface.h" | ||
| #include "MagneticField/VolumeGeometry/interface/MagVolumeOutsideValidity.h" | ||
| #include "DataFormats/GeometrySurface/interface/PlaneBuilder.h" | ||
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| //- Geant4 | ||
| #include "G4TransportationManager.hh" | ||
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| class SimpleGeant4ePropagatorTest final : public edm::one::EDAnalyzer<> { | ||
| public: | ||
| explicit SimpleGeant4ePropagatorTest(const edm::ParameterSet &); | ||
| ~SimpleGeant4ePropagatorTest() override {} | ||
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| void analyze(const edm::Event &, const edm::EventSetup &) override; | ||
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| protected: | ||
| // tokens | ||
| const edm::ESGetToken<MagneticField, IdealMagneticFieldRecord> magFieldToken; | ||
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| Propagator *thePropagator; | ||
| }; | ||
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| SimpleGeant4ePropagatorTest::SimpleGeant4ePropagatorTest(const edm::ParameterSet &iConfig) | ||
| : magFieldToken(esConsumes()), thePropagator(nullptr) {} | ||
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| namespace { | ||
| Surface::RotationType rotation(const GlobalVector &zDir) { | ||
| GlobalVector zAxis = zDir.unit(); | ||
| GlobalVector yAxis(zAxis.y(), -zAxis.x(), 0); | ||
| GlobalVector xAxis = yAxis.cross(zAxis); | ||
| return Surface::RotationType(xAxis, yAxis, zAxis); | ||
| } | ||
| } // namespace | ||
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| void SimpleGeant4ePropagatorTest::analyze(const edm::Event &iEvent, const edm::EventSetup &iSetup) { | ||
| using namespace edm; | ||
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| std::cout << "Starting G4e test..." << std::endl; | ||
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| /////////////////////////////////////// | ||
| // Construct Magnetic Field | ||
| const ESHandle<MagneticField> bField = iSetup.getHandle(magFieldToken); | ||
| if (bField.isValid()) | ||
| std::cout << "G4e -- Magnetic field is valid. Value in (0,0,0): " << bField->inTesla(GlobalPoint(0, 0, 0)).mag() | ||
| << " Tesla " << std::endl; | ||
| else | ||
| LogError("Geant4e") << "G4e -- NO valid Magnetic field" << std::endl; | ||
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| // Initialise the propagator | ||
| if (!thePropagator) | ||
| thePropagator = new Geant4ePropagator(bField.product()); | ||
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| if (thePropagator) | ||
| std::cout << "Propagator built!" << std::endl; | ||
| else | ||
| LogError("Geant4e") << "Could not build propagator!" << std::endl; | ||
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| GlobalVector p3T(10., 10., 2.); | ||
| std::cout << "*** Phi (rad): " << p3T.phi() << " - Phi(deg)" << p3T.phi().degrees(); | ||
| std::cout << "Track P.: " << p3T << "\nTrack P.: PT=" << p3T.perp() << "\tEta=" << p3T.eta() | ||
| << "\tPhi=" << p3T.phi().degrees() << "--> Rad: Phi=" << p3T.phi() << std::endl; | ||
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| GlobalPoint r3T(0., 0., 0.); | ||
| std::cout << "Init point: " << r3T << "\nInit point Ro=" << r3T.perp() << "\tEta=" << r3T.eta() | ||
| << "\tPhi=" << r3T.phi().degrees() << std::endl; | ||
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| //- Charge | ||
| int charge = 1; | ||
| std::cout << "Track charge = " << charge << std::endl; | ||
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| //- Initial covariance matrix is unity 10-6 | ||
| ROOT::Math::SMatrixIdentity id; | ||
| AlgebraicSymMatrix55 C(id); | ||
| C *= 0.01; | ||
| CurvilinearTrajectoryError covT(C); | ||
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| PlaneBuilder pb; | ||
| Surface::RotationType rot = rotation(p3T); | ||
| // Define end planes | ||
| for (float d = 50.; d < 700.; d += 50.) { | ||
| float propDistance = d; // 100 cm | ||
| std::cout << "G4e -- Extrapolatation distance " << d << " cm" << std::endl; | ||
| GlobalPoint targetPos = r3T + propDistance * p3T.unit(); | ||
| auto endPlane = pb.plane(targetPos, rot); | ||
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| //- Build FreeTrajectoryState | ||
| GlobalTrajectoryParameters trackPars(r3T, p3T, charge, &*bField); | ||
| FreeTrajectoryState ftsTrack(trackPars, covT); | ||
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| // Propagate: Need to explicetely | ||
| TrajectoryStateOnSurface tSOSDest = thePropagator->propagate(ftsTrack, *endPlane); | ||
| if (!tSOSDest.isValid()) { | ||
| std::cout << "TSOS not valid? Propagation failed...." << std::endl; | ||
| continue; | ||
| } | ||
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| auto posExtrap = tSOSDest.freeState()->position(); | ||
| auto momExtrap = tSOSDest.freeState()->momentum(); | ||
| std::cout << "G4e -- Extrapolated position:" << posExtrap << " cm\n" | ||
| << "G4e -- (Rho, eta, phi): (" << posExtrap.perp() << " cm, " << posExtrap.eta() << ", " | ||
| << posExtrap.phi() << ')' << std::endl; | ||
| std::cout << "G4e -- Extrapolated momentum:" << momExtrap << " GeV\n" | ||
| << "G4e -- (pt, eta, phi): (" << momExtrap.perp() << " cm, " << momExtrap.eta() << ", " | ||
| << momExtrap.phi() << ')' << std::endl; | ||
| } | ||
| } | ||
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| // define this as a plug-in | ||
| DEFINE_FWK_MODULE(SimpleGeant4ePropagatorTest); |
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