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Merge pull request #38864 from VinInn/FixGeomProd
Try to 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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