From 77e8362b9ac0379eb5c4b006d01bcbc1dc27f99b Mon Sep 17 00:00:00 2001 From: Giovanni Marchiori Date: Fri, 12 Jan 2024 11:50:35 +0100 Subject: [PATCH] cell positioning tool for possible ECal barrel with phi-theta segmentation --- ...CellPositionsECalBarrelPhiThetaSegTool.cpp | 96 +++++++++++++++++++ .../CellPositionsECalBarrelPhiThetaSegTool.h | 65 +++++++++++++ 2 files changed, 161 insertions(+) create mode 100644 RecFCCeeCalorimeter/src/components/CellPositionsECalBarrelPhiThetaSegTool.cpp create mode 100644 RecFCCeeCalorimeter/src/components/CellPositionsECalBarrelPhiThetaSegTool.h diff --git a/RecFCCeeCalorimeter/src/components/CellPositionsECalBarrelPhiThetaSegTool.cpp b/RecFCCeeCalorimeter/src/components/CellPositionsECalBarrelPhiThetaSegTool.cpp new file mode 100644 index 00000000..94d222dc --- /dev/null +++ b/RecFCCeeCalorimeter/src/components/CellPositionsECalBarrelPhiThetaSegTool.cpp @@ -0,0 +1,96 @@ +#include "CellPositionsECalBarrelPhiThetaSegTool.h" + +// EDM +#include "edm4hep/CalorimeterHitCollection.h" + +DECLARE_COMPONENT(CellPositionsECalBarrelPhiThetaSegTool) + +CellPositionsECalBarrelPhiThetaSegTool::CellPositionsECalBarrelPhiThetaSegTool(const std::string& type, const std::string& name, + const IInterface* parent) + : GaudiTool(type, name, parent) { + declareInterface(this); +} + +StatusCode CellPositionsECalBarrelPhiThetaSegTool::initialize() { + StatusCode sc = GaudiTool::initialize(); + if (sc.isFailure()) return sc; + m_geoSvc = service("GeoSvc"); + if (!m_geoSvc) { + error() << "Unable to locate Geometry service." << endmsg; + return StatusCode::FAILURE; + } + // get phi-theta segmentation + m_segmentation = dynamic_cast( + m_geoSvc->getDetector()->readout(m_readoutName).segmentation().segmentation()); + if (m_segmentation == nullptr) { + error() << "There is no phi-theta segmentation!!!!" << endmsg; + return StatusCode::FAILURE; + } + // Take readout bitfield decoder from GeoSvc + m_decoder = m_geoSvc->getDetector()->readout(m_readoutName).idSpec().decoder(); + m_volman = m_geoSvc->getDetector()->volumeManager(); + // check if decoder contains "layer" + std::vector fields; + for (uint itField = 0; itField < m_decoder->size(); itField++) { + fields.push_back((*m_decoder)[itField].name()); + } + auto iter = std::find(fields.begin(), fields.end(), "layer"); + if (iter == fields.end()) { + error() << "Readout does not contain field: 'layer'" << endmsg; + } + return sc; +} + +void CellPositionsECalBarrelPhiThetaSegTool::getPositions(const edm4hep::CalorimeterHitCollection& aCells, + edm4hep::CalorimeterHitCollection& outputColl) { + + debug() << "Input collection size : " << aCells.size() << endmsg; + // Loop through cell collection + for (const auto& cell : aCells) { + auto outSeg = CellPositionsECalBarrelPhiThetaSegTool::xyzPosition(cell.getCellID()); + auto edmPos = edm4hep::Vector3f(); + edmPos.x = outSeg.x() / dd4hep::mm; + edmPos.y = outSeg.y() / dd4hep::mm; + edmPos.z = outSeg.z() / dd4hep::mm; + + auto positionedHit = cell.clone(); + positionedHit.setPosition(edmPos); + outputColl.push_back(positionedHit); + + // Debug information about cell position + debug() << "Cell energy (GeV) : " << positionedHit.getEnergy() << "\tcellID " << positionedHit.getCellID() << endmsg; + debug() << "Position of cell (mm) : \t" << outSeg.x() / dd4hep::mm << "\t" << outSeg.y() / dd4hep::mm << "\t" + << outSeg.z() / dd4hep::mm << "\n" + << endmsg; + } + debug() << "Output positions collection size: " << outputColl.size() << endmsg; +} + +dd4hep::Position CellPositionsECalBarrelPhiThetaSegTool::xyzPosition(const uint64_t& aCellId) const { + double radius; + dd4hep::DDSegmentation::CellID volumeId = aCellId; + m_decoder->set(volumeId, "phi", 0); + m_decoder->set(volumeId, "theta", 0); + auto detelement = m_volman.lookupDetElement(volumeId); + const auto& transformMatrix = detelement.nominal().worldTransformation(); + double outGlobal[3]; + double inLocal[] = {0, 0, 0}; + transformMatrix.LocalToMaster(inLocal, outGlobal); + //debug() << "Position of volume (mm) : \t" << outGlobal[0] / dd4hep::mm << "\t" << outGlobal[1] / dd4hep::mm << "\t" + // << outGlobal[2] / dd4hep::mm << endmsg; + // radius calculated from segmenation + z postion of volumes + auto inSeg = m_segmentation->position(aCellId); + radius = std::sqrt(std::pow(outGlobal[0], 2) + std::pow(outGlobal[1], 2)); + dd4hep::Position outSeg(inSeg.x() * radius, inSeg.y() * radius, inSeg.z() * radius); + + return outSeg; +} + +int CellPositionsECalBarrelPhiThetaSegTool::layerId(const uint64_t& aCellId) { + int layer; + dd4hep::DDSegmentation::CellID cID = aCellId; + layer = m_decoder->get(cID, "layer"); + return layer; +} + +StatusCode CellPositionsECalBarrelPhiThetaSegTool::finalize() { return GaudiTool::finalize(); } diff --git a/RecFCCeeCalorimeter/src/components/CellPositionsECalBarrelPhiThetaSegTool.h b/RecFCCeeCalorimeter/src/components/CellPositionsECalBarrelPhiThetaSegTool.h new file mode 100644 index 00000000..9a4b3987 --- /dev/null +++ b/RecFCCeeCalorimeter/src/components/CellPositionsECalBarrelPhiThetaSegTool.h @@ -0,0 +1,65 @@ +#ifndef RECCALORIMETER_CELLPOSITIONSECALBARRELPHITHETASEGTOOL_H +#define RECCALORIMETER_CELLPOSITIONSECALBARRELPHITHETASEGTOOL_H + +// GAUDI +#include "GaudiAlg/GaudiTool.h" +#include "GaudiKernel/ServiceHandle.h" + +// FCCSW +#include "detectorCommon/DetUtils_k4geo.h" +#include "k4Interface/IGeoSvc.h" +#include "detectorSegmentations/FCCSWGridPhiTheta_k4geo.h" +#include "k4FWCore/DataHandle.h" +#include "k4Interface/ICellPositionsTool.h" + +// DD4hep +#include "DD4hep/Readout.h" +#include "DD4hep/Volumes.h" +#include "DDSegmentation/Segmentation.h" +#include "TGeoManager.h" + +class IGeoSvc; +namespace DD4hep { +namespace DDSegmentation { +class Segmentation; +} +} + +/** @class CellPositionsECalBarrelPhiThetaSegTool k4RecCalorimeter/RecFCCeeCalorimeter/src/components/CellPositionsECalBarrelPhiThetaSegTool.h + * CellPositionsECalBarrelPhiThetaSegTool.h + * + * Tool to determine each Calorimeter cell position. + * + * For the FCCee Barrel ECAL with phi-theta segmentation, determined from the placed volumes and the segmentation. + * + * @author Giovanni Marchiori + */ + +class CellPositionsECalBarrelPhiThetaSegTool : public GaudiTool, virtual public ICellPositionsTool { +public: + CellPositionsECalBarrelPhiThetaSegTool(const std::string& type, const std::string& name, const IInterface* parent); + ~CellPositionsECalBarrelPhiThetaSegTool() = default; + + virtual StatusCode initialize() final; + + virtual StatusCode finalize() final; + + virtual void getPositions(const edm4hep::CalorimeterHitCollection& aCells, edm4hep::CalorimeterHitCollection& outputColl) final; + + virtual dd4hep::Position xyzPosition(const uint64_t& aCellId) const final; + + virtual int layerId(const uint64_t& aCellId) final; + +private: + /// Pointer to the geometry service + SmartIF m_geoSvc; + /// Name of the electromagnetic calorimeter readout + Gaudi::Property m_readoutName{this, "readoutName", "ECalBarrelPhiTheta"}; + /// Eta-phi segmentation + dd4hep::DDSegmentation::FCCSWGridPhiTheta_k4geo* m_segmentation; + /// Cellid decoder + dd4hep::DDSegmentation::BitFieldCoder* m_decoder; + /// Volume manager + dd4hep::VolumeManager m_volman; +}; +#endif /* RECCALORIMETER_CELLPOSITIONSECALBARRELPHITHETASEGTOOL_H */