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//Framework Headers
#include "FWCore/Framework/interface/ConsumesCollector.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Utilities/interface/ESInputTag.h"
#include "FWCore/Utilities/interface/Exception.h"
#include "FastSimulation/SimplifiedGeometryPropagator/interface/SimplifiedGeometryFactory.h"
#include "FastSimulation/SimplifiedGeometryPropagator/interface/ForwardSimplifiedGeometry.h"
#include "FastSimulation/SimplifiedGeometryPropagator/interface/BarrelSimplifiedGeometry.h"
#include "MagneticField/UniformEngine/interface/UniformMagneticField.h"
#include "FastSimulation/SimplifiedGeometryPropagator/interface/Geometry.h"
#include <iostream>
#include <map>
#include <memory>
using namespace fastsim;
Geometry::~Geometry() { ; }
Geometry::Geometry(const edm::ParameterSet& cfg, edm::ConsumesCollector&& iC)
: cacheIdentifierTrackerRecoGeometry_(0),
cacheIdentifierIdealMagneticField_(0),
geometricSearchTracker_(nullptr),
magneticField_(nullptr),
useFixedMagneticFieldZ_(cfg.exists("magneticFieldZ")),
fixedMagneticFieldZ_(cfg.getUntrackedParameter<double>("magneticFieldZ", 0.)),
useTrackerRecoGeometryRecord_(cfg.getUntrackedParameter<bool>("useTrackerRecoGeometryRecord", true)),
trackerAlignmentLabel_(cfg.getUntrackedParameter<std::string>("trackerAlignmentLabel", "")),
barrelLayerCfg_(cfg.getParameter<std::vector<edm::ParameterSet>>("BarrelLayers")),
forwardLayerCfg_(cfg.getParameter<std::vector<edm::ParameterSet>>("EndcapLayers")),
maxRadius_(cfg.getUntrackedParameter<double>("maxRadius", 500.)),
maxZ_(cfg.getUntrackedParameter<double>("maxZ", 1200.)),
barrelBoundary_(cfg.exists("trackerBarrelBoundary")) // Hack to interface "old" calo to "new" tracking
,
forwardBoundary_(cfg.exists("trackerForwardBoundary")) // Hack to interface "old" calo to "new" tracking
,
trackerBarrelBoundaryCfg_(barrelBoundary_
? cfg.getParameter<edm::ParameterSet>("trackerBarrelBoundary")
: edm::ParameterSet()) // Hack to interface "old" calo to "new" tracking
,
trackerForwardBoundaryCfg_(forwardBoundary_
? cfg.getParameter<edm::ParameterSet>("trackerForwardBoundary")
: edm::ParameterSet()) // Hack to interface "old" calo to "new" tracking
{
if (useTrackerRecoGeometryRecord_) {
geometricSearchTrackerESToken_ = iC.esConsumes(edm::ESInputTag("", trackerAlignmentLabel_));
}
if (!useFixedMagneticFieldZ_) {
magneticFieldESToken_ = iC.esConsumes();
}
}
void Geometry::update(const edm::EventSetup& iSetup,
const std::map<std::string, fastsim::InteractionModel*>& interactionModelMap) {
if (iSetup.get<TrackerRecoGeometryRecord>().cacheIdentifier() == cacheIdentifierTrackerRecoGeometry_ &&
iSetup.get<IdealMagneticFieldRecord>().cacheIdentifier() == cacheIdentifierIdealMagneticField_) {
return;
}
//----------------
// find tracker reconstruction geometry
//----------------
if (iSetup.get<TrackerRecoGeometryRecord>().cacheIdentifier() != cacheIdentifierTrackerRecoGeometry_) {
if (useTrackerRecoGeometryRecord_) {
geometricSearchTracker_ = &iSetup.getData(geometricSearchTrackerESToken_);
}
}
//----------------
// update magnetic field
//----------------
if (iSetup.get<IdealMagneticFieldRecord>().cacheIdentifier() != cacheIdentifierIdealMagneticField_) {
if (useFixedMagneticFieldZ_) // use constant magnetic field
{
ownedMagneticField_ = std::make_unique<UniformMagneticField>(fixedMagneticFieldZ_);
magneticField_ = ownedMagneticField_.get();
} else // get magnetic field from EventSetup
{
magneticField_ = &iSetup.getData(magneticFieldESToken_);
}
}
//---------------
// layer factory
//---------------
SimplifiedGeometryFactory simplifiedGeometryFactory(
geometricSearchTracker_, *magneticField_, interactionModelMap, maxRadius_, maxZ_);
//---------------
// update barrel layers
//---------------
barrelLayers_.clear();
for (const edm::ParameterSet& layerCfg : barrelLayerCfg_) {
barrelLayers_.push_back(simplifiedGeometryFactory.createBarrelSimplifiedGeometry(layerCfg));
}
// Hack to interface "old" calo to "new" tracking
if (barrelBoundary_) {
barrelLayers_.push_back(simplifiedGeometryFactory.createBarrelSimplifiedGeometry(trackerBarrelBoundaryCfg_));
barrelLayers_.back()->setCaloType(SimplifiedGeometry::TRACKERBOUNDARY);
}
for (unsigned index = 0; index < barrelLayers_.size(); index++) {
// set index
barrelLayers_[index]->setIndex(index);
// check order
if (index > 0) {
if (barrelLayers_[index]->getRadius() <= barrelLayers_[index - 1]->getRadius()) {
throw cms::Exception("fastsim::Geometry")
<< "barrel layers must be ordered according to increading radius"
<< "\nbarrel layer " << index << " has radius smaller than or equal to radius of barrel layer " << index - 1
<< " (" << barrelLayers_[index]->getRadius() << "/" << barrelLayers_[index - 1]->getRadius() << ")";
}
}
}
//--------------
// update forward layers
//--------------
forwardLayers_.clear();
for (const edm::ParameterSet& layerCfg : forwardLayerCfg_) {
forwardLayers_.push_back(simplifiedGeometryFactory.createForwardSimplifiedGeometry(
fastsim::SimplifiedGeometryFactory::POSFWD, layerCfg));
forwardLayers_.insert(forwardLayers_.begin(),
simplifiedGeometryFactory.createForwardSimplifiedGeometry(
fastsim::SimplifiedGeometryFactory::NEGFWD, layerCfg));
}
// Hack to interface "old" calo to "new" tracking
if (forwardBoundary_) {
forwardLayers_.push_back(simplifiedGeometryFactory.createForwardSimplifiedGeometry(
fastsim::SimplifiedGeometryFactory::POSFWD, trackerForwardBoundaryCfg_));
forwardLayers_.back()->setCaloType(SimplifiedGeometry::TRACKERBOUNDARY);
forwardLayers_.insert(forwardLayers_.begin(),
simplifiedGeometryFactory.createForwardSimplifiedGeometry(
fastsim::SimplifiedGeometryFactory::NEGFWD, trackerForwardBoundaryCfg_));
forwardLayers_.front()->setCaloType(SimplifiedGeometry::TRACKERBOUNDARY);
}
for (unsigned index = 0; index < forwardLayers_.size(); index++) {
// set index
forwardLayers_[index]->setIndex(index);
// check order
if (index > 0) {
if (forwardLayers_[index]->getZ() <= forwardLayers_[index - 1]->getZ()) {
throw cms::Exception("fastsim::Geometry")
<< "forward layers must be ordered according to increasing z"
<< "forward layer " << index << " has z smaller than or equal to z of forward layer " << index - 1;
}
}
}
}
double fastsim::Geometry::getMagneticFieldZ(const math::XYZTLorentzVector& position) const {
return magneticField_->inTesla(GlobalPoint(position.X(), position.Y(), position.Z())).z();
}
std::ostream& fastsim::operator<<(std::ostream& os, const fastsim::Geometry& geometry) {
os << "-----------"
<< "\n# fastsim::Geometry"
<< "\n## BarrelLayers:";
for (const auto& layer : geometry.barrelLayers_) {
os << "\n " << *layer << layer->getInteractionModels().size() << " interaction models";
}
os << "\n## ForwardLayers:";
for (const auto& layer : geometry.forwardLayers_) {
os << "\n " << *layer << layer->getInteractionModels().size() << " interaction models";
}
os << "\n-----------";
return os;
}
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