diff --git a/RecFCCeeCalorimeter/src/components/CellPositionsECalEndcapTurbineSegTool.cpp b/RecFCCeeCalorimeter/src/components/CellPositionsECalEndcapTurbineSegTool.cpp new file mode 100644 index 00000000..1833b63a --- /dev/null +++ b/RecFCCeeCalorimeter/src/components/CellPositionsECalEndcapTurbineSegTool.cpp @@ -0,0 +1,128 @@ +#include "CellPositionsECalEndcapTurbineSegTool.h" + +// EDM +#include "edm4hep/CalorimeterHitCollection.h" + +#include + +DECLARE_COMPONENT(CellPositionsECalEndcapTurbineSegTool) + +CellPositionsECalEndcapTurbineSegTool::CellPositionsECalEndcapTurbineSegTool(const std::string& type, const std::string& name, + const IInterface* parent) + : GaudiTool(type, name, parent) { + declareInterface(this); +} + +StatusCode CellPositionsECalEndcapTurbineSegTool::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 segmentation + m_segmentation = dynamic_cast(m_geoSvc->getDetector()->readout(m_readoutName).segmentation().segmentation()); + if (m_segmentation == nullptr) { + error() << "There is no endcap turbine segmentation!!!!" << endmsg; + return StatusCode::FAILURE; + } + debug() << "Found endcap turbine segmentation" << endmsg; + + // 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()); + debug() << "In positioning tool, field is " << (*m_decoder)[itField].name() << endmsg; + } + auto iter = std::find(fields.begin(), fields.end(), "layer"); + if (iter == fields.end()) { + error() << "Readout does not contain field: 'layer'" << endmsg; + } + + return sc; +} + +void CellPositionsECalEndcapTurbineSegTool::getPositions(const edm4hep::CalorimeterHitCollection& aCells, + edm4hep::CalorimeterHitCollection& outputColl) { + + debug() << "Input collection size : " << aCells.size() << endmsg; + + // Loop through input cell collection, call xyzPosition method for each cell + // and assign position to cloned hit to be saved in outputColl + for (const auto& cell : aCells) { + auto outSeg = CellPositionsECalEndcapTurbineSegTool::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 CellPositionsECalEndcapTurbineSegTool::xyzPosition(const uint64_t& aCellId) const { + + dd4hep::Position outSeg; + double radius; + + // find position of volume corresponding to first of group of merged cells + debug() << "cellID: " << aCellId << endmsg; + dd4hep::DDSegmentation::CellID volumeId = aCellId; + debug() << "volumeId: " << volumeId << endmsg; + m_decoder->set(volumeId, "rho", 0); + debug() << "volumeId: " << volumeId << endmsg; + m_decoder->set(volumeId, "z", 0); + debug() << "volumeId: " << volumeId << endmsg; + 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; + + // get R, phi of volume + radius = std::sqrt(std::pow(outGlobal[0], 2) + std::pow(outGlobal[1], 2)); + double phi = std::atan2(outGlobal[1], outGlobal[0]); + debug() << "R (mm), phi of volume : \t" << radius / dd4hep::mm << " , " << phi << endmsg; + + // now get offset in theta and in phi from cell ID (due to theta grid + merging in theta/modules) + // the local position is normalised to r_xy=1 so theta is atan(1/z) + dd4hep::DDSegmentation::Vector3D inSeg = m_segmentation->position(aCellId); + debug() << "Local position of cell (mm) : \t" + << inSeg.x() / dd4hep::mm << "\t" + << inSeg.y() / dd4hep::mm << "\t" + << inSeg.z() / dd4hep::mm << endmsg; + outSeg = inSeg; + debug() << "Position of cell (mm) : \t" << outSeg.x() / dd4hep::mm << "\t" << outSeg.y() / dd4hep::mm << "\t" + << outSeg.z() / dd4hep::mm << "\n" + << endmsg; + + return outSeg; +} + +int CellPositionsECalEndcapTurbineSegTool::layerId(const uint64_t& aCellId) { + int layer; + dd4hep::DDSegmentation::CellID cID = aCellId; + layer = m_decoder->get(cID, "layer"); + return layer; +} + +StatusCode CellPositionsECalEndcapTurbineSegTool::finalize() { return GaudiTool::finalize(); } diff --git a/RecFCCeeCalorimeter/src/components/CellPositionsECalEndcapTurbineSegTool.h b/RecFCCeeCalorimeter/src/components/CellPositionsECalEndcapTurbineSegTool.h new file mode 100644 index 00000000..cae99339 --- /dev/null +++ b/RecFCCeeCalorimeter/src/components/CellPositionsECalEndcapTurbineSegTool.h @@ -0,0 +1,67 @@ +#ifndef RECCALORIMETER_CELLPOSITIONSECALENDCAPTURBINESEGTOOL_H +#define RECCALORIMETER_CELLPOSITIONSECALENDCAPTURBINESEGTOOL_H + +// GAUDI +#include "GaudiAlg/GaudiTool.h" +#include "GaudiKernel/ServiceHandle.h" + +// k4FWCore +#include "k4FWCore/DataHandle.h" +#include "k4Interface/IGeoSvc.h" +#include "k4Interface/ICellPositionsTool.h" + +// k4geo +#include "detectorCommon/DetUtils_k4geo.h" +#include "detectorSegmentations/FCCSWEndcapTurbine_k4geo.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 CellPositionsECalEndcapTurbineSegTool Reconstruction/RecFCCeeCalorimeter/src/components/CellPositionsECalEndcapTurbineSegTool.h + * CellPositionsECalEndcapTurbineSegTool.h + * + * Tool to determine each Calorimeter cell position. + * + * For the FCCee Endcap ECAL, determined from the placed volumes and the FCCSW endcap turbine segmentation. + * + * @author Erich Varnes + */ + +class CellPositionsECalEndcapTurbineSegTool : public GaudiTool, virtual public ICellPositionsTool { +public: + CellPositionsECalEndcapTurbineSegTool(const std::string& type, const std::string& name, const IInterface* parent); + ~CellPositionsECalEndcapTurbineSegTool() = 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", "ECalEndcapTurbine"}; + /// Merged module-theta segmentation + dd4hep::DDSegmentation::FCCSWEndcapTurbine_k4geo* m_segmentation; + /// Cellid decoder + dd4hep::DDSegmentation::BitFieldCoder* m_decoder; + /// Volume manager + dd4hep::VolumeManager m_volman; +}; +#endif /* RECCALORIMETER_CELLPOSITIONSECALENDCAPTURBINESEGTOOL_H */