MuonPhaseII/MuonDetDescr/MuonGeoModelTestR4/src/GeoModelMmTest.cxx

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/*
  Copyright (C) 2002-2023 CERN for the benefit of the ATLAS collaboration
*/
#include "GeoModelMmTest.h"
#include <ActsGeometryInterfaces/ActsGeometryContext.h>
#include <MuonReadoutGeometryR4/MmReadoutElement.h>
#include <EventPrimitives/EventPrimitivesToStringConverter.h>
#include <fstream>
 
using namespace ActsTrk;
 
namespace MuonGMR4{
 
GeoModelMmTest::GeoModelMmTest(const std::string& name, ISvcLocator* pSvcLocator):
    AthHistogramAlgorithm(name,pSvcLocator) {}
 
StatusCode GeoModelMmTest::initialize() {
    ATH_CHECK(m_idHelperSvc.retrieve());
    ATH_CHECK(m_geoCtxKey.initialize());
    ATH_CHECK(m_tree.init(this));
 
    const MmIdHelper& id_helper{m_idHelperSvc->mmIdHelper()};
    for (const std::string& testCham : m_selectStat) {
        if (testCham.size() != 6) {
            ATH_MSG_FATAL("Wrong format given " << testCham);
            return StatusCode::FAILURE;
        }
        std::string statName = testCham.substr(0, 3);
        unsigned int statEta = std::atoi(testCham.substr(3, 1).c_str()) *
                               (testCham[4] == 'A' ? 1 : -1);
        unsigned int statPhi = std::atoi(testCham.substr(5, 1).c_str());
        bool is_valid{false};
        const Identifier eleId = id_helper.elementID(statName, statEta, statPhi, is_valid);
        if (!is_valid) {
            ATH_MSG_FATAL("Failed to deduce a station name for " << testCham);
            return StatusCode::FAILURE;
        }
        std::copy_if(id_helper.detectorElement_begin(), 
                     id_helper.detectorElement_end(), 
                     std::inserter(m_testStations, m_testStations.end()), 
                        [&](const Identifier& id) {
                            return id_helper.elementID(id) == eleId;
                        });
    }
    if (m_testStations.empty()){
        std::copy(id_helper.detectorElement_begin(), 
                  id_helper.detectorElement_end(), 
                  std::inserter(m_testStations, m_testStations.end()));
    } else {
        std::stringstream sstr{};
        for (const Identifier& id : m_testStations) {
            sstr<<" *** "<<m_idHelperSvc->toString(id)<<std::endl;
        }
        ATH_MSG_DEBUG("Test only the following stations "<<std::endl<<sstr.str());
    }
     ATH_CHECK(detStore()->retrieve(m_detMgr));
    return StatusCode::SUCCESS;
}
StatusCode GeoModelMmTest::finalize() {
    ATH_CHECK(m_tree.write());
    return StatusCode::SUCCESS;
}
StatusCode GeoModelMmTest::execute() {
    const EventContext& ctx{Gaudi::Hive::currentContext()};
    SG::ReadHandle<ActsGeometryContext> geoContextHandle{m_geoCtxKey, ctx};
    ATH_CHECK(geoContextHandle.isPresent());
    const ActsGeometryContext& gctx{*geoContextHandle};
 
    for (const Identifier& test_me : m_testStations) {
        ATH_MSG_DEBUG("Test retrieval of Mm detector element "<<m_idHelperSvc->toStringDetEl(test_me));
        const MmReadoutElement* reElement = m_detMgr->getMmReadoutElement(test_me);
        if (!reElement) {
            continue;
        }
        if (reElement->identify() != test_me) {
            ATH_MSG_FATAL("Expected to retrieve "<<m_idHelperSvc->toStringDetEl(test_me)
                        <<". But got instead "<<m_idHelperSvc->toStringDetEl(reElement->identify()));
            return StatusCode::FAILURE;
        }      
        const Amg::Transform3D globToLocal{reElement->globalToLocalTrans(gctx)};
        const Amg::Transform3D& localToGlob{reElement->localToGlobalTrans(gctx)};
        if (!Amg::doesNotDeform(globToLocal * localToGlob)) {
                ATH_MSG_FATAL("Closure test failed for "<<m_idHelperSvc->toStringDetEl(test_me)
                            <<" "<<Amg::toString(globToLocal * localToGlob));
                return StatusCode::FAILURE;
        }
        const MmIdHelper& id_helper{m_idHelperSvc->mmIdHelper()};
        for (unsigned int layer = 1; layer <= reElement->nGasGaps(); ++layer) {
            const IdentifierHash layerHash{MuonGMR4::MmReadoutElement::createHash(layer, 0)};
            const int numStrips = reElement->numStrips(layerHash);
            const int fStrip = reElement->firstStrip(layerHash);
            const int lStrip = fStrip+numStrips-1;
            
            for (int strip = fStrip; strip <= lStrip; ++strip) {
                bool isValid{false};
                
                const Identifier chId = id_helper.channelID(reElement->identify(),
                                                            reElement->multilayer(),
                                                            layer, strip, isValid);
                if (!isValid) {
                    continue;
                }
 
                const IdentifierHash channelHash = reElement->measurementHash(chId);
                const IdentifierHash layHash = reElement->layerHash(chId);
                const Identifier backCnv = reElement->measurementId(channelHash);
                if (backCnv != chId) {
                    ATH_MSG_FATAL("The back and forth conversion of "<<m_idHelperSvc->toString(chId)
                                    <<" failed. Got "<<m_idHelperSvc->toString(backCnv));
                    return StatusCode::FAILURE;
                }
                if (layHash != reElement->layerHash(channelHash)) {
                    ATH_MSG_FATAL("Constructing the layer hash from the identifier "<<
                                m_idHelperSvc->toString(chId)<<" leads to different layer hashes "<<
                                layHash<<" vs. "<< reElement->layerHash(channelHash));
                    return StatusCode::FAILURE;
                }
                const MuonGMR4::StripDesign& design{reElement->stripLayer(layHash).design()};
                const Amg::Vector3D stripPos = reElement->stripPosition(gctx, channelHash);
                const Amg::Vector3D locStripPos = reElement->globalToLocalTrans(gctx, layHash) * stripPos;
                const Amg::Vector2D stripPos2D{locStripPos.block<2,1>(0,0)};
                const double stripLen{design.stripLength(strip)};
                if (stripLen && (design.stripNumber(stripPos2D) != strip ||
                    design.stripNumber(stripPos2D - 0.49 * stripLen * Amg::Vector2D::UnitY()) != strip ||
                    design.stripNumber(stripPos2D + 0.49 * stripLen * Amg::Vector2D::UnitY()) != strip)) {
                    ATH_MSG_FATAL("Conversion channel -> strip -> channel failed for "
                        <<m_idHelperSvc->toString(chId)<<" "<<Amg::toString(stripPos)<<", local: "
                        <<Amg::toString(locStripPos)<<" got "<<design.stripNumber(stripPos2D)
                        <<", first strip: "<<fStrip<<std::endl<<design);
                    return StatusCode::FAILURE;
                }
                ATH_MSG_VERBOSE("first strip "<<fStrip<<", numStrips "<< numStrips << ", channel "
                              << m_idHelperSvc->toString(chId) <<", strip position " << Amg::toString(stripPos));
            }
        }
        ATH_CHECK(dumpToTree(ctx,gctx,reElement));
    }   
 
   return StatusCode::SUCCESS;
}
StatusCode GeoModelMmTest::dumpToTree(const EventContext& ctx,
                                       const ActsGeometryContext& gctx, 
                                       const MmReadoutElement* reElement) {
 
 
 
    m_stIndex    = reElement->stationName();
    m_stEta      = reElement->stationEta();
    m_stPhi      = reElement->stationPhi();
    m_stML       = reElement->multilayer();
    m_chamberDesign = reElement->chamberDesign();
    m_stStripPitch = reElement->stripLayer(MuonGMR4::MmReadoutElement::createHash(1,1)).design().stripPitch();
    const Amg::Transform3D& transform{reElement->localToGlobalTrans(gctx)};
    m_readoutTransform = transform;
    m_alignableNode  = reElement->alignableTransform()->getDefTransform();
 
    m_moduleHeight = reElement->moduleHeight();
    m_moduleWidthS = reElement->moduleWidthL();
    m_moduleWidthL = reElement->moduleWidthS();
 
    const MmIdHelper& id_helper{m_idHelperSvc->mmIdHelper()};
    for (unsigned int layer = 1; layer <= reElement->nGasGaps(); ++layer) {
 
        const IdentifierHash layHash{MuonGMR4::MmReadoutElement::createHash(layer, 0)};
        unsigned int numStrips = reElement->numStrips(layHash);
        unsigned int fStrip = reElement->firstStrip(layHash);
        unsigned int lStrip = fStrip+numStrips-1;
 
        for (unsigned int strip = fStrip; strip <= lStrip ; ++strip) {
            bool isValid{false};
            const Identifier chId = id_helper.channelID(reElement->identify(),
                                                            reElement->multilayer(),
                                                            layer, strip, isValid);
            if (!isValid) {
                ATH_MSG_WARNING("Invalid Identifier detected for readout element "
                                <<m_idHelperSvc->toStringDetEl(reElement->identify())
                                <<" layer: "<<layer<<" strip: "<<strip);
                continue;
            }
            const IdentifierHash measHash{reElement->measurementHash(chId)};
 
            const MuonGMR4::StripDesign& design{reElement->stripLayer(measHash).design()};
            m_locStripCenter.push_back(design.center(strip).value_or(Amg::Vector2D::Zero()));
            m_isStereo.push_back(design.hasStereoAngle());
            m_stripCenter.push_back(reElement->stripPosition(gctx, measHash));
            m_stripLeftEdge.push_back(reElement->leftStripEdge(gctx,measHash));
            m_stripRightEdge.push_back(reElement->rightStripEdge(gctx,measHash));
            m_stripLength.push_back(reElement->stripLength(measHash));
            m_gasGap.push_back(layer);
            m_channel.push_back(strip);
 
            m_ActiveWidthS = reElement->gapLengthS(measHash);
            m_ActiveWidthL = reElement->gapLengthL(measHash);
            m_ActiveHeightR = reElement->gapHeight(measHash);
 
            if (strip != fStrip) continue;
            const Amg::Transform3D stripGlobToLoc = reElement->globalToLocalTrans(gctx, chId);
            ATH_MSG_VERBOSE("The global to local transformation on layers is: " << Amg::toString(stripGlobToLoc));
            ATH_MSG_VERBOSE("The local to global transformation on layers is: " << Amg::toString(reElement->localToGlobalTrans(gctx, chId)));
            m_stripRot.push_back(stripGlobToLoc);
            m_stripRotGasGap.push_back(layer);
            m_firstStripPos.push_back(design.firstStripPos());
            m_readoutFirstStrip.push_back(design.firstStripNumber());
            m_readoutSide.push_back(reElement->readoutSide(measHash));
            
        }
 
    }
    return m_tree.fill(ctx) ? StatusCode::SUCCESS : StatusCode::FAILURE;
}
 
}