FWRecoGeometryESProducer.cc

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#include <fstream>
#include <streambuf>

#include "Fireworks/Geometry/interface/FWRecoGeometryESProducer.h"
#include "Fireworks/Geometry/interface/FWRecoGeometry.h"
#include "Fireworks/Geometry/interface/FWRecoGeometryRecord.h"

#include "DataFormats/GeometrySurface/interface/RectangularPlaneBounds.h"
#include "DataFormats/GeometrySurface/interface/TrapezoidalPlaneBounds.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "Geometry/CommonDetUnit/interface/GlobalTrackingGeometry.h"
#include "Geometry/CaloGeometry/interface/CaloGeometry.h"
#include "Geometry/HGCalGeometry/interface/HGCalGeometry.h"
#include "Geometry/HGCalGeometry/interface/FastTimeGeometry.h"
#include "Geometry/CaloGeometry/interface/CaloCellGeometry.h"
#include "Geometry/CSCGeometry/interface/CSCGeometry.h"
#include "Geometry/DTGeometry/interface/DTGeometry.h"
#include "Geometry/CSCGeometry/interface/CSCChamber.h"
#include "Geometry/CSCGeometry/interface/CSCLayer.h"
#include "Geometry/DTGeometry/interface/DTChamber.h"
#include "Geometry/DTGeometry/interface/DTLayer.h"
#include "Geometry/RPCGeometry/interface/RPCGeometry.h"
#include "Geometry/GEMGeometry/interface/GEMGeometry.h"
#include "Geometry/GEMGeometry/interface/ME0Geometry.h"
#include "Geometry/Records/interface/CaloGeometryRecord.h"
#include "Geometry/TrackerGeometryBuilder/interface/TrackerGeometry.h"
#include "Geometry/TrackerGeometryBuilder/interface/RectangularPixelTopology.h"
#include "Geometry/TrackerGeometryBuilder/interface/PixelGeomDetUnit.h"
#include "Geometry/TrackerGeometryBuilder/interface/StripGeomDetUnit.h"
#include "Geometry/TrackerGeometryBuilder/interface/StripGeomDetType.h"
#include "Geometry/CommonTopologies/interface/StripTopology.h"
#include "Geometry/CommonTopologies/interface/RectangularStripTopology.h"
#include "Geometry/CommonTopologies/interface/TrapezoidalStripTopology.h"

#include "TNamed.h"
#include "FWCore/ParameterSet/interface/FileInPath.h"

void FWRecoGeometryESProducer::ADD_PIXEL_TOPOLOGY( unsigned int rawid, const GeomDet* detUnit ) {                                    
   const PixelGeomDetUnit* det = dynamic_cast<const PixelGeomDetUnit*>( detUnit ); 
   if( det )                            
   {                                
      const PixelTopology* topo = &det->specificTopology(); 
    
      std::pair<float,float> pitch = topo->pitch();
      m_fwGeometry->idToName[rawid].topology[0] = pitch.first;
      m_fwGeometry->idToName[rawid].topology[1] = pitch.second;

      m_fwGeometry->idToName[rawid].topology[2] = topo->localX(0.f); // offsetX
      m_fwGeometry->idToName[rawid].topology[3] = topo->localY(0.f); // offsetY

      // big pixels layout
      m_fwGeometry->idToName[rawid].topology[4] = topo->isItBigPixelInX(80) ? 0 : 1;
   }
}

# define ADD_SISTRIP_TOPOLOGY( rawid, detUnit )         \
  const StripGeomDetUnit* det = dynamic_cast<const StripGeomDetUnit*>( detUnit ); \
  if( det )                                                     \
  {                                                             \
    const StripTopology* topo = dynamic_cast<const StripTopology*>( &det->specificTopology() ); \
    m_fwGeometry->idToName[rawid].topology[0] = 0;                      \
    m_fwGeometry->idToName[rawid].topology[1] = topo->nstrips();            \
    m_fwGeometry->idToName[rawid].topology[2] = topo->stripLength();        \
    if( const RadialStripTopology* rtop = dynamic_cast<const RadialStripTopology*>( &(det->specificType().specificTopology()) ) ) \
      {                                 \
      m_fwGeometry->idToName[rawid].topology[0] = 1;            \
      m_fwGeometry->idToName[rawid].topology[3] = rtop->yAxisOrientation(); \
      m_fwGeometry->idToName[rawid].topology[4] = rtop->originToIntersection(); \
      m_fwGeometry->idToName[rawid].topology[5] = rtop->phiOfOneEdge(); \
      m_fwGeometry->idToName[rawid].topology[6] = rtop->angularWidth(); \
    }                                                                   \
    else if( dynamic_cast<const RectangularStripTopology*>( &(det->specificType().specificTopology()) ) )     \
    {                                                                   \
      m_fwGeometry->idToName[rawid].topology[0] = 2;            \
      m_fwGeometry->idToName[rawid].topology[3] = topo->pitch();    \
    }                                   \
    else if( dynamic_cast<const TrapezoidalStripTopology*>( &(det->specificType().specificTopology()) ) )     \
    {                                                                   \
      m_fwGeometry->idToName[rawid].topology[0] = 3;            \
      m_fwGeometry->idToName[rawid].topology[3] = topo->pitch();    \
    }                                   \
  }                                                                     \

namespace {
  const std::array<std::string,3> hgcal_geom_names =  { { "HGCalEESensitive",
                                                                 "HGCalHESiliconSensitive",
                                                                 "HGCalHEScintillatorSensitive" } };
}
                                      
FWRecoGeometryESProducer::FWRecoGeometryESProducer( const edm::ParameterSet& pset )
  : m_current( -1 )
{
  m_tracker = pset.getUntrackedParameter<bool>( "Tracker", true );
  m_muon = pset.getUntrackedParameter<bool>( "Muon", true );
  m_calo = pset.getUntrackedParameter<bool>( "Calo", true );
  m_timing = pset.getUntrackedParameter<bool>( "Timing", false );
  setWhatProduced( this );
}

FWRecoGeometryESProducer::~FWRecoGeometryESProducer( void )
{}

std::shared_ptr<FWRecoGeometry> 
FWRecoGeometryESProducer::produce( const FWRecoGeometryRecord& record )
{
  using namespace edm;

  m_fwGeometry = std::make_shared<FWRecoGeometry>();

  if( m_tracker || m_muon ) {
    record.getRecord<GlobalTrackingGeometryRecord>().get( m_geomRecord );  
    DetId detId( DetId::Tracker, 0 );
    m_trackerGeom = (const TrackerGeometry*) m_geomRecord->slaveGeometry( detId );
  }
    
  if( m_tracker )
  {
    addPixelBarrelGeometry( );
    addPixelForwardGeometry();
    addTIBGeometry();
    addTIDGeometry();
    addTOBGeometry();
    addTECGeometry();
    writeTrackerParametersXML();
    return m_fwGeometry; //AMT
  }
  if( m_muon )
  {
    addDTGeometry();
    addCSCGeometry();
    addRPCGeometry();
    addGEMGeometry();
    addME0Geometry();
  }
  if( m_calo )
  {
    edm::ESHandle<CaloGeometry>                caloGeomH;
    record.getRecord<CaloGeometryRecord>().get(caloGeomH);
    m_caloGeom = caloGeomH.product();
    addCaloGeometry();
  }

  if( m_timing ) {
    record.getRecord<CaloGeometryRecord>().getRecord<IdealGeometryRecord>().get( "FastTimeBarrel", m_ftlBarrelGeom );
    record.getRecord<CaloGeometryRecord>().getRecord<IdealGeometryRecord>().get( "SFBX", m_ftlEndcapGeom );
    addFTLGeometry();
  }
  
  m_fwGeometry->idToName.resize( m_current + 1 );
  std::vector<FWRecoGeom::Info>( m_fwGeometry->idToName ).swap( m_fwGeometry->idToName );
  std::sort( m_fwGeometry->idToName.begin(), m_fwGeometry->idToName.end());

  return m_fwGeometry;
}

void
FWRecoGeometryESProducer::addCSCGeometry( void )
{
  DetId detId( DetId::Muon, 2 ); 
  const CSCGeometry* cscGeometry = (const CSCGeometry*) m_geomRecord->slaveGeometry( detId );
  for( auto it = cscGeometry->chambers().begin(),
       end = cscGeometry->chambers().end(); 
       it != end; ++it )
  {
    const CSCChamber *chamber = *it;
    
    if( chamber )
    {
      unsigned int rawid = chamber->geographicalId();
      unsigned int current =  insert_id( rawid );
      fillShapeAndPlacement( current, chamber );
      //
      // CSC layers geometry
      //
      for( std::vector< const CSCLayer* >::const_iterator lit = chamber->layers().begin(),
                             lend = chamber->layers().end(); 
       lit != lend; ++lit )
      {
    const CSCLayer* layer = *lit;
    
    if( layer )
    {
      unsigned int rawid = layer->geographicalId();
      unsigned int current = insert_id( rawid );
      fillShapeAndPlacement( current, layer );

      const CSCStripTopology* stripTopology = layer->geometry()->topology();
      m_fwGeometry->idToName[current].topology[0] = stripTopology->yAxisOrientation();
      m_fwGeometry->idToName[current].topology[1] = stripTopology->centreToIntersection();
      m_fwGeometry->idToName[current].topology[2] = stripTopology->yCentreOfStripPlane();
      m_fwGeometry->idToName[current].topology[3] = stripTopology->phiOfOneEdge();
      m_fwGeometry->idToName[current].topology[4] = stripTopology->stripOffset();
      m_fwGeometry->idToName[current].topology[5] = stripTopology->angularWidth();

      const CSCWireTopology* wireTopology = layer->geometry()->wireTopology();
      m_fwGeometry->idToName[current].topology[6] = wireTopology->wireSpacing();
      m_fwGeometry->idToName[current].topology[7] = wireTopology->wireAngle();
    }
      }
    }
  }
}

void
FWRecoGeometryESProducer::addDTGeometry( void )
{
  DetId detId( DetId::Muon, 1 );
  const DTGeometry* dtGeometry = (const DTGeometry*) m_geomRecord->slaveGeometry( detId );

  //
  // DT chambers geometry
  //
  for( auto it = dtGeometry->chambers().begin(),
       end = dtGeometry->chambers().end(); 
       it != end; ++it )
  {
    const DTChamber *chamber = *it;
    
    if( chamber )
    {
      unsigned int rawid = chamber->geographicalId().rawId();
      unsigned int current = insert_id( rawid );
      fillShapeAndPlacement( current, chamber );
    }
  }

  // Fill in DT layer parameters
  for( auto it = dtGeometry->layers().begin(),
       end = dtGeometry->layers().end(); 
       it != end; ++it )
  {
    const DTLayer* layer = *it;
     
    if( layer )
    {
      unsigned int rawid = layer->id().rawId();
      unsigned int current = insert_id( rawid );
      fillShapeAndPlacement( current, layer );

      const DTTopology& topo = layer->specificTopology();
      const BoundPlane& surf = layer->surface();
      // Topology W/H/L:
      m_fwGeometry->idToName[current].topology[0] = topo.cellWidth();
      m_fwGeometry->idToName[current].topology[1] = topo.cellHeight();
      m_fwGeometry->idToName[current].topology[2] = topo.cellLenght();
      m_fwGeometry->idToName[current].topology[3] = topo.firstChannel();
      m_fwGeometry->idToName[current].topology[4] = topo.lastChannel();
      m_fwGeometry->idToName[current].topology[5] = topo.channels();

      // Bounds W/H/L:
      m_fwGeometry->idToName[current].topology[6] = surf.bounds().width();
      m_fwGeometry->idToName[current].topology[7] = surf.bounds().thickness();
      m_fwGeometry->idToName[current].topology[8] = surf.bounds().length();
    }
  }  
}

void
FWRecoGeometryESProducer::addRPCGeometry( void )
{
  //
  // RPC rolls geometry
  //
  DetId detId( DetId::Muon, 3 );
  const RPCGeometry* rpcGeom = (const RPCGeometry*) m_geomRecord->slaveGeometry( detId );
  for( auto it = rpcGeom->rolls().begin(),
       end = rpcGeom->rolls().end(); 
       it != end; ++it )
  {
    const RPCRoll* roll = (*it);
    if( roll )
    {
      unsigned int rawid = roll->geographicalId().rawId();
      unsigned int current = insert_id( rawid );
      fillShapeAndPlacement( current, roll );

      const StripTopology& topo = roll->specificTopology();
      m_fwGeometry->idToName[current].topology[0] = topo.nstrips();
      m_fwGeometry->idToName[current].topology[1] = topo.stripLength();
      m_fwGeometry->idToName[current].topology[2] = topo.pitch();
    }
  }


  try {
     RPCDetId id(1, 1, 4, 1, 1, 1, 1 );
     m_geomRecord->slaveGeometry( detId );
     m_fwGeometry->extraDet.Add(new TNamed("RE4", "RPC endcap station 4"));
  }
    catch (std::runtime_error &e) {
       std::cerr << e.what() << std::endl; 
    }
}

void
FWRecoGeometryESProducer::addGEMGeometry( void )
{
  //
  // GEM geometry
  //
  DetId detId( DetId::Muon, 4 );

  try 
  {
    const GEMGeometry* gemGeom = (const GEMGeometry*) m_geomRecord->slaveGeometry( detId );
    
    // add in superChambers - gem Segments are based on superChambers
    for(auto sc : gemGeom->superChambers())
    { 
      if( sc )
      {
    unsigned int rawid = sc->geographicalId().rawId();
    unsigned int current = insert_id( rawid );
    fillShapeAndPlacement( current, sc );
      }
    }
    // add in chambers
    for(auto ch : gemGeom->chambers())
    { 
      if( ch )
      {
    unsigned int rawid = ch->geographicalId().rawId();
    unsigned int current = insert_id( rawid );
    fillShapeAndPlacement( current, ch );
      }
    }    
    // add in etaPartitions - gem rechits are based on etaPartitions
    for(auto roll : gemGeom->etaPartitions())
    { 
      if( roll )
      {
    unsigned int rawid = roll->geographicalId().rawId();
    unsigned int current = insert_id( rawid );
    fillShapeAndPlacement( current, roll );

    const StripTopology& topo = roll->specificTopology();
    m_fwGeometry->idToName[current].topology[0] = topo.nstrips();
    m_fwGeometry->idToName[current].topology[1] = topo.stripLength();
    m_fwGeometry->idToName[current].topology[2] = topo.pitch();

    float height = topo.stripLength()/2;
    LocalPoint  lTop( 0., height, 0.);
    LocalPoint  lBottom( 0., -height, 0.);
    m_fwGeometry->idToName[current].topology[3] = roll->localPitch(lTop);
    m_fwGeometry->idToName[current].topology[4] = roll->localPitch(lBottom);
    m_fwGeometry->idToName[current].topology[5] = roll->npads();
      }
    }

    m_fwGeometry->extraDet.Add(new TNamed("GEM", "GEM muon detector"));
    try {
      GEMDetId id(1, 1, 2, 1, 1, 1 );
      m_geomRecord->slaveGeometry( detId );
      m_fwGeometry->extraDet.Add(new TNamed("GE2", "GEM endcap station 2"));
    }
    catch (std::runtime_error &e) {
       std::cerr << e.what() << std::endl; 
    }

  }
  catch( cms::Exception &exception )
  {
    edm::LogError("FWRecoGeometry") << " GEM geometry not found " << exception.what() << std::endl;
  }
}

void
FWRecoGeometryESProducer::addME0Geometry( void )
{
  //                                                                                                                               
  // ME0 geometry                                                                                                                  
  //   

  DetId detId( DetId::Muon, 5 );
  try 
  {
    const ME0Geometry* me0Geom = (const ME0Geometry*) m_geomRecord->slaveGeometry( detId );
    for(auto roll : me0Geom->etaPartitions())
    { 
      if( roll )
      {
    unsigned int rawid = roll->geographicalId().rawId();
    unsigned int current = insert_id( rawid );
    fillShapeAndPlacement( current, roll );
      
    const StripTopology& topo = roll->specificTopology();
    m_fwGeometry->idToName[current].topology[0] = topo.nstrips();
    m_fwGeometry->idToName[current].topology[1] = topo.stripLength();
    m_fwGeometry->idToName[current].topology[2] = topo.pitch();
    
    float height = topo.stripLength()/2;
    LocalPoint  lTop( 0., height, 0.);
    LocalPoint  lBottom( 0., -height, 0.);
    m_fwGeometry->idToName[current].topology[3] = roll->localPitch(lTop);
    m_fwGeometry->idToName[current].topology[4] = roll->localPitch(lBottom);
    m_fwGeometry->idToName[current].topology[5] = roll->npads();
      }
    }
    m_fwGeometry->extraDet.Add(new TNamed("ME0", "ME0 muon detector"));
  }
  catch( cms::Exception &exception )
  {
    edm::LogError("FWRecoGeometry") << " ME0 geometry not found " << exception.what() << std::endl;
  }
}  

void
FWRecoGeometryESProducer::addPixelBarrelGeometry( void )
{
  for( TrackerGeometry::DetContainer::const_iterator it = m_trackerGeom->detsPXB().begin(),
                            end = m_trackerGeom->detsPXB().end();
       it != end; ++it)
  {
    const GeomDet *det = *it;

    if( det )
    {     
      DetId detid = det->geographicalId();
      unsigned int rawid = detid.rawId();
      unsigned int current = insert_id( rawid );
      fillShapeAndPlacement( current, det );

      ADD_PIXEL_TOPOLOGY( current, m_trackerGeom->idToDetUnit( detid ));
    }
  }
}

void
FWRecoGeometryESProducer::addPixelForwardGeometry( void )
{
  for( TrackerGeometry::DetContainer::const_iterator it = m_trackerGeom->detsPXF().begin(),
                            end = m_trackerGeom->detsPXF().end();
       it != end; ++it )
  {
    const GeomDet *det = *it;

    if( det )
    {     
      DetId detid = det->geographicalId();
      unsigned int rawid = detid.rawId();
      unsigned int current = insert_id( rawid );
      fillShapeAndPlacement( current, det );
    
      ADD_PIXEL_TOPOLOGY( current, m_trackerGeom->idToDetUnit( detid ));
    }
  }
}

void
FWRecoGeometryESProducer::addTIBGeometry( void )
{
  for( TrackerGeometry::DetContainer::const_iterator it = m_trackerGeom->detsTIB().begin(),
                            end = m_trackerGeom->detsTIB().end();
       it != end; ++it )
  {
    const GeomDet *det = *it;

    if( det )
    {     
      DetId detid = det->geographicalId();
      unsigned int rawid = detid.rawId();
      unsigned int current = insert_id( rawid );
      fillShapeAndPlacement( current, det );

      ADD_SISTRIP_TOPOLOGY( current, m_trackerGeom->idToDet( detid ));
    }
  }
}

void
FWRecoGeometryESProducer::addTOBGeometry( void )
{
  for( TrackerGeometry::DetContainer::const_iterator it = m_trackerGeom->detsTOB().begin(),
                            end = m_trackerGeom->detsTOB().end();
       it != end; ++it )
  {
    const GeomDet *det = *it;

    if( det )
    {     
      DetId detid = det->geographicalId();
      unsigned int rawid = detid.rawId();
      unsigned int current = insert_id( rawid );
      fillShapeAndPlacement( current, det );

      ADD_SISTRIP_TOPOLOGY( current, m_trackerGeom->idToDet( detid ));
    }
  }
}

void
FWRecoGeometryESProducer::addTIDGeometry( void )
{
  for( TrackerGeometry::DetContainer::const_iterator it = m_trackerGeom->detsTID().begin(),
                            end = m_trackerGeom->detsTID().end();
       it != end; ++it)
  {
    const GeomDet *det = *it;

    if( det )
    {     
      DetId detid = det->geographicalId();
      unsigned int rawid = detid.rawId();
      unsigned int current = insert_id( rawid );
      fillShapeAndPlacement( current, det );

      ADD_SISTRIP_TOPOLOGY( current, m_trackerGeom->idToDet( detid ));
    }
  }
}

void
FWRecoGeometryESProducer::addTECGeometry( void )
{
  for( TrackerGeometry::DetContainer::const_iterator it = m_trackerGeom->detsTEC().begin(),
                            end = m_trackerGeom->detsTEC().end();
       it != end; ++it )
  {
    const GeomDet *det = *it;

    if( det )
    {     
      DetId detid = det->geographicalId();
      unsigned int rawid = detid.rawId();
      unsigned int current = insert_id( rawid );
      fillShapeAndPlacement( current, det );

      ADD_SISTRIP_TOPOLOGY( current, m_trackerGeom->idToDet( detid ));
    }
  }
}

void
FWRecoGeometryESProducer::addCaloGeometry( void )
{
  std::vector<DetId> vid = m_caloGeom->getValidDetIds(); // Calo
  for( std::vector<DetId>::const_iterator it = vid.begin(),
     end = vid.end();
       it != end; ++it ) {
    unsigned int id = insert_id( it->rawId());
    if( DetId::Forward != it->det() ) {
      const CaloCellGeometry::CornersVec& cor = m_caloGeom->getGeometry( *it )->getCorners();      
      fillPoints( id, cor.begin(), cor.end());
    } else {
      const HGCalGeometry* geom = dynamic_cast<const HGCalGeometry*>(m_caloGeom->getSubdetectorGeometry( *it ) );
      const auto& cor = geom->getCorners( *it );
      fillPoints( id, cor.begin(), cor.end() );
    }
  }
}

void
FWRecoGeometryESProducer::addFTLGeometry( void )
{
  // do the barrel
  std::vector<DetId> vid = std::move(m_ftlBarrelGeom->getValidDetIds()); 
  for( std::vector<DetId>::const_iterator it = vid.begin(),
     end = vid.end();
       it != end; ++it ) {
    unsigned int id = insert_id( it->rawId());
    const auto& cor =  m_ftlBarrelGeom->getCorners( *it );      
    fillPoints( id, cor.begin(), cor.end());    
  }
  // do the endcap
  vid = std::move(m_ftlEndcapGeom->getValidDetIds()); 
  for( std::vector<DetId>::const_iterator it = vid.begin(),
     end = vid.end();
       it != end; ++it ) {
    unsigned int id = insert_id( it->rawId());
    const auto& cor =  m_ftlEndcapGeom->getCorners( *it );      
    fillPoints( id, cor.begin(), cor.end());    
  }
}

unsigned int
FWRecoGeometryESProducer::insert_id( unsigned int rawid )
{
  ++m_current;
  m_fwGeometry->idToName.push_back(FWRecoGeom::Info());
  m_fwGeometry->idToName.back().id = rawid;
  
  return m_current;
}

void
FWRecoGeometryESProducer::fillPoints( unsigned int id, std::vector<GlobalPoint>::const_iterator begin, std::vector<GlobalPoint>::const_iterator end )
{
  unsigned int index( 0 );
  for( std::vector<GlobalPoint>::const_iterator i = begin; i != end; ++i )
  {
    assert( index < 23 );
    m_fwGeometry->idToName[id].points[index] = i->x();
    m_fwGeometry->idToName[id].points[++index] = i->y();
    m_fwGeometry->idToName[id].points[++index] = i->z();
    ++index;
  }
}


void
FWRecoGeometryESProducer::fillShapeAndPlacement( unsigned int id, const GeomDet *det )
{
  // Trapezoidal
  const Bounds *b = &((det->surface ()).bounds ());
  if( const TrapezoidalPlaneBounds *b2 = dynamic_cast<const TrapezoidalPlaneBounds *> (b))
  {
      std::array< const float, 4 > const & par = b2->parameters ();
    
    // These parameters are half-lengths, as in CMSIM/GEANT3
    m_fwGeometry->idToName[id].shape[0] = 1;
    m_fwGeometry->idToName[id].shape[1] = par [0]; // hBottomEdge
    m_fwGeometry->idToName[id].shape[2] = par [1]; // hTopEdge
    m_fwGeometry->idToName[id].shape[3] = par [2]; // thickness
    m_fwGeometry->idToName[id].shape[4] = par [3]; // apothem
  }
  if( const RectangularPlaneBounds *b2 = dynamic_cast<const RectangularPlaneBounds *> (b))
  {
    // Rectangular
    m_fwGeometry->idToName[id].shape[0] = 2;
    m_fwGeometry->idToName[id].shape[1] = b2->width() * 0.5; // half width
    m_fwGeometry->idToName[id].shape[2] = b2->length() * 0.5; // half length
    m_fwGeometry->idToName[id].shape[3] = b2->thickness() * 0.5; // half thickness
  }

  // Position of the DetUnit's center
  GlobalPoint pos = det->surface().position();
  m_fwGeometry->idToName[id].translation[0] = pos.x();
  m_fwGeometry->idToName[id].translation[1] = pos.y();
  m_fwGeometry->idToName[id].translation[2] = pos.z();

  // Add the coeff of the rotation matrix
  // with a projection on the basis vectors
  TkRotation<float> detRot = det->surface().rotation();
  m_fwGeometry->idToName[id].matrix[0] = detRot.xx();
  m_fwGeometry->idToName[id].matrix[1] = detRot.yx();
  m_fwGeometry->idToName[id].matrix[2] = detRot.zx();
  m_fwGeometry->idToName[id].matrix[3] = detRot.xy();
  m_fwGeometry->idToName[id].matrix[4] = detRot.yy();
  m_fwGeometry->idToName[id].matrix[5] = detRot.zy();
  m_fwGeometry->idToName[id].matrix[6] = detRot.xz();
  m_fwGeometry->idToName[id].matrix[7] = detRot.yz();
  m_fwGeometry->idToName[id].matrix[8] = detRot.zz();
}

void FWRecoGeometryESProducer::writeTrackerParametersXML()
{
  std::string path = "Geometry/TrackerCommonData/data/";
  if ( m_trackerGeom->isThere(GeomDetEnumerators::P1PXB) ||
       m_trackerGeom->isThere(GeomDetEnumerators::P1PXEC) ) {
    path += "PhaseI/";
  } else if ( m_trackerGeom->isThere(GeomDetEnumerators::P2PXB)  ||
              m_trackerGeom->isThere(GeomDetEnumerators::P2PXEC) ||
              m_trackerGeom->isThere(GeomDetEnumerators::P2OTB)  ||
              m_trackerGeom->isThere(GeomDetEnumerators::P2OTEC) ) {
    path += "PhaseII/";
  }
  path += "trackerParameters.xml";
  std::string fullPath = edm::FileInPath(path).fullPath();
  std::ifstream t(fullPath);
  std::stringstream buffer;
  buffer << t.rdbuf();
  m_fwGeometry->trackerTopologyXML = buffer.str();
}