SiDetectorManager.cxx

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/*
  Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
*/
 
 
#include "GeoPrimitives/CLHEPtoEigenConverter.h"
 
#include "InDetReadoutGeometry/SiDetectorManager.h"
#include "AtlasDetDescr/AtlasDetectorID.h"
#include "IdDictDetDescr/IdDictManager.h"
#include "StoreGate/StoreGateSvc.h"
 
#include "GeoModelKernel/GeoXF.h"
#include "GeoGenericFunctions/Variable.h"
#include "GeoModelKernel/GeoAlignableTransform.h"
#include "DetDescrConditions/AlignableTransformContainer.h"
#include "ReadoutGeometryBase/SiCommonItems.h"
#include "InDetReadoutGeometry/SiDetectorElementCollection.h"
#include "InDetReadoutGeometry/SiDetectorElement.h"
#include "InDetReadoutGeometry/ExtendedAlignableTransform.h"
 
#include <iostream>
 
namespace InDetDD
{
 
    SiDetectorManager::SiDetectorManager(StoreGateSvc * detStore, const std::string & name)
        : InDetDetectorManager(detStore, name)
    {
    }
 
    SiDetectorManager::~SiDetectorManager() = default;
 
    const std::string& SiDetectorManager::tag() const
    {
        return m_tag;
    }
 
    void SiDetectorManager::invalidateAll()
    {
        for (SiDetectorElementCollection::iterator element_iter = getDetectorElementBegin();
        element_iter != getDetectorElementEnd();
        ++element_iter) {
 
            if (*element_iter) {
                (*element_iter)->invalidate();
            }
        }
    }
 
    void SiDetectorManager::updateAll() const
    {
        for (SiDetectorElementCollection::const_iterator element_iter = getDetectorElementBegin();
        element_iter != getDetectorElementEnd();
        ++element_iter) {
            if (*element_iter) {
                (*element_iter)->updateCache();
            }
        }
    }
 
    bool SiDetectorManager::setAlignableTransformLocalDelta(ExtendedAlignableTransform * extXF,
                                                            const Amg::Transform3D & localToGlobalXF,
                                                            const Amg::Transform3D & delta,
                                                            GeoVAlignmentStore* alignStore)
    {
        // ATTENTION -------------------------------------------------------- (A.S.)
        // CLHEP < -- > AMG interface method
 
        // Sets the alignable transform delta when the supplied delta is in the local
        // reconstruction frame
 
        // If the default transform to the local recostruction frame is
        // T = A*B*C*D*E
        // and the alignable transform is C with delta c and the delat in the local frame is l, then
        // A*B*C*c*D*E = A*B*C*D*E*l
        //  c = (D*E) * l * (D*E).inverse()
        //  c = (A*B*C).inverse * T * l * T.inverse() * (A*B*C)
 
        // To get default transform up and including the alignable transform,
        // we assume the next volume down is a fullphys volume and so its
        // transform is the transform we want (ie A*B*C in the above example).
 
        if (!extXF) return false;
 
        const GeoVFullPhysVol* child = extXF->child();
        if (child && extXF->alignableTransform()) {
            // the definitiv absolut transform is in CLHEP -> do the calculation in CLHEP
            const GeoTrf::Transform3D& transform = child->getDefAbsoluteTransform(alignStore);
            // calucluate the corrected delta according to the formula above
            GeoTrf::Transform3D correctedDelta = transform.inverse()*localToGlobalXF      // (A*B*C).inverse() * T
                                             * delta                                  // l
                                                 * localToGlobalXF.inverse() * transform; // T.inverse() * (A*B*C)
            extXF->alignableTransform()->setDelta(correctedDelta, alignStore);
            return true;
        } else {
            return false;
        }
    }
 
    bool SiDetectorManager::setAlignableTransformGlobalDelta(ExtendedAlignableTransform * extXF,
                                                             const Amg::Transform3D& delta,
                                                             GeoVAlignmentStore* alignStore) {
        // ATTENTION -------------------------------------------------------- (A.S.)
        // CLHEP < -- > AMG interface method
 
        // Sets the alignable transform delta when the supplied delta is in the global frame.
 
        // If the default transform down to the alignable transform is
        // T = A*B*C
        // and the alignable transform is C with delta c and the delta in the global frame is g, then
        // A*B*C*c = g*A*B*C
        // T*c = g*T
        //  c = T.inverse() * g * T
 
        // To get default transform up and including the alignable transform,
        // we assume the next volume down is a fullphys volume and so its
        // transform is the transform we want (ie T=A*B*C in the above example).
 
 
        if (!extXF) return false;
 
        const GeoVFullPhysVol * child = extXF->child();
        if (child && extXF->alignableTransform()) {
            // do the calculation in CLHEP
            const GeoTrf::Transform3D& transform = child->getDefAbsoluteTransform(alignStore);
            extXF->alignableTransform()->setDelta(transform.inverse() * delta * transform, alignStore);
            return true;
        } else {
            return false;
        }
    }
 
    const SiDetectorDesign * SiDetectorManager::addDesign(std::unique_ptr<const SiDetectorDesign>&& design)
    {
        m_designs.push_back(std::move(design));
        return m_designs.back().get();
    }
 
    int SiDetectorManager::numDesigns() const
    {
        return m_designs.size();
    }
 
 
    const SiDetectorDesign* SiDetectorManager::getDesign(int i) const
    {
        return m_designs[i].get();
    }
 
    void SiDetectorManager::setCommonItems(std::unique_ptr<const SiCommonItems>&& commonItems)
    {
        m_commonItems = std::move(commonItems);
    }
 
}// namespace InDetDD