TIDLayer Class Reference

#include <TIDLayer.h>

Inheritance diagram for TIDLayer:

Classes
struct	RingPar

Public Member Functions
const std::vector< const GeomDet * > &	basicComponents () const override
const std::vector< const GeometricSearchDet * > &	components () const override __attribute__((cold))
void	groupedCompatibleDetsV (const TrajectoryStateOnSurface &tsos, const Propagator &prop, const MeasurementEstimator &est, std::vector< DetGroup > &result) const override __attribute__((hot))
TIDLayer &	operator= (const TIDLayer &)=delete
SubDetector	subDetector () const override
	TIDLayer (const TIDLayer &)=delete
	TIDLayer (std::vector< const TIDRing * > &rings) __attribute__((cold))
	~TIDLayer () override __attribute__((cold))

Private Member Functions
BoundDisk *	computeDisk (const std::vector< const TIDRing * > &rings) const __attribute__((cold))
float	computeWindowSize (const GeomDet *det, const TrajectoryStateOnSurface &tsos, const MeasurementEstimator &est) const __attribute__((hot))
void	fillRingPars (int i) __attribute__((cold))
int	findClosest (const GlobalPoint[3]) const __attribute__((hot))
int	findNextIndex (const GlobalPoint[3], int) const __attribute__((hot))
bool	overlapInR (const TrajectoryStateOnSurface &tsos, int i, double ymax) const __attribute__((hot))
std::array< int, 3 >	ringIndicesByCrossingProximity (const TrajectoryStateOnSurface &startingState, const Propagator &prop) const

Private Attributes
RingPar	ringPars [3]
std::vector< GeomDet const * >	theBasicComps
std::atomic< std::vector< const GeometricSearchDet * > * >	theComponents
const TIDRing *	theComps [3]

Detailed Description

A concrete implementation for TID layer built out of TIDRings

Definition at line 14 of file TIDLayer.h.

Constructor & Destructor Documentation

TIDLayer() [1/2]

TIDLayer::TIDLayer

(

std::vector< const TIDRing * > &

rings

)

Definition at line 104 of file TIDLayer.cc.

                                                : RingedForwardLayer(true), theComponents{nullptr} {
  //They should be already R-ordered. TO BE CHECKED!!
  //sort( theRings.begin(), theRings.end(), DetLessR());
 
  if (rings.size() != 3)
    throw DetLayerException("Number of rings in TID layer is not equal to 3 !!");
  setSurface(computeDisk(rings));
 
  for (int i = 0; i != 3; ++i) {
    theComps[i] = rings[i];
    fillRingPars(i);
    theBasicComps.insert(
        theBasicComps.end(), (*rings[i]).basicComponents().begin(), (*rings[i]).basicComponents().end());
  }
 
  LogDebug("TkDetLayers") << "==== DEBUG TIDLayer =====";
  LogDebug("TkDetLayers") << "r,zed pos  , thickness, innerR, outerR: " << this->position().perp() << " , "
                          << this->position().z() << " , " << this->specificSurface().bounds().thickness() << " , "
                          << this->specificSurface().innerRadius() << " , " << this->specificSurface().outerRadius();
}

~TIDLayer()

TIDLayer::~TIDLayer ( )

override

Definition at line 149 of file TIDLayer.cc.

                    {
  for (auto c : theComps)
    delete c;
 
  delete theComponents.load();
}

References c, theComponents, and theComps.

TIDLayer() [2/2]

TIDLayer::TIDLayer ( const TIDLayer &  )

delete

Member Function Documentation

basicComponents()

const std::vector<const GeomDet*>& TIDLayer::basicComponents ( ) const

inlineoverride

Definition at line 25 of file TIDLayer.h.

{ return theBasicComps; }

References theBasicComps.

components()

const std::vector< const GeometricSearchDet * > & TIDLayer::components ( ) const

override

Definition at line 79 of file TIDLayer.cc.

                                                                       {
  if (not theComponents) {
    auto temp = std::make_unique<std::vector<const GeometricSearchDet*>>();
    temp->reserve(3);
    for (auto c : theComps)
      temp->push_back(c);
    std::vector<const GeometricSearchDet*>* expected = nullptr;
    if (theComponents.compare_exchange_strong(expected, temp.get())) {
      //this thread set the value
      temp.release();
    }
  }
 
  return *theComponents;
}

References c, and groupFilesInBlocks::temp.

computeDisk()

BoundDisk * TIDLayer::computeDisk ( const std::vector< const TIDRing * > &  rings ) const

private

Definition at line 125 of file TIDLayer.cc.

                                                                          {
  float theRmin = rings.front()->specificSurface().innerRadius();
  float theRmax = rings.front()->specificSurface().outerRadius();
  float theZmin = rings.front()->position().z() - rings.front()->surface().bounds().thickness() / 2;
  float theZmax = rings.front()->position().z() + rings.front()->surface().bounds().thickness() / 2;
 
  for (vector<const TIDRing*>::const_iterator i = rings.begin(); i != rings.end(); i++) {
    float rmin = (**i).specificSurface().innerRadius();
    float rmax = (**i).specificSurface().outerRadius();
    float zmin = (**i).position().z() - (**i).surface().bounds().thickness() / 2.;
    float zmax = (**i).position().z() + (**i).surface().bounds().thickness() / 2.;
    theRmin = min(theRmin, rmin);
    theRmax = max(theRmax, rmax);
    theZmin = min(theZmin, zmin);
    theZmax = max(theZmax, zmax);
  }
 
  float zPos = (theZmax + theZmin) / 2.;
  PositionType pos(0., 0., zPos);
  RotationType rot;
 
  return new BoundDisk(pos, rot, new SimpleDiskBounds(theRmin, theRmax, theZmin - zPos, theZmax - zPos));
}

References mps_fire::i, SiStripPI::max, min(), makeMuonMisalignmentScenario::rot, SiStripMonitorCluster_cfi::zmax, and SiStripMonitorCluster_cfi::zmin.

computeWindowSize()

float TIDLayer::computeWindowSize ( const GeomDet *  det, const TrajectoryStateOnSurface &  tsos, const MeasurementEstimator &  est  ) const

private

Definition at line 260 of file TIDLayer.cc.

                                                                         {
  const Plane& startPlane = det->surface();
  MeasurementEstimator::Local2DVector maxDistance = est.maximalLocalDisplacement(tsos, startPlane);
  return maxDistance.y();
}

References particleFlowClusterHGC_cfi::maxDistance, MeasurementEstimator::maximalLocalDisplacement(), and GeomDet::surface().

Referenced by groupedCompatibleDetsV().

fillRingPars()

void TIDLayer::fillRingPars ( int  i )

private

Definition at line 95 of file TIDLayer.cc.

                                 {
  const BoundDisk& ringDisk = static_cast<const BoundDisk&>(theComps[i]->surface());
  float ringMinZ = std::abs(ringDisk.position().z()) - ringDisk.bounds().thickness() / 2.;
  float ringMaxZ = std::abs(ringDisk.position().z()) + ringDisk.bounds().thickness() / 2.;
  ringPars[i].thetaRingMin = ringDisk.innerRadius() / ringMaxZ;
  ringPars[i].thetaRingMax = ringDisk.outerRadius() / ringMinZ;
  ringPars[i].theRingR = (ringDisk.innerRadius() + ringDisk.outerRadius()) / 2.;
}

References funct::abs(), and mps_fire::i.

findClosest()

int TIDLayer::findClosest ( const GlobalPoint  ringCrossing[3] ) const

private

Definition at line 268 of file TIDLayer.cc.

                                                                 {
  int theBin = 0;
  float initialR = ringPars[0].theRingR;
  float rDiff = std::abs(ringCrossing[0].perp() - initialR);
  for (int i = 1; i < 3; i++) {
    float ringR = ringPars[i].theRingR;
    float testDiff = std::abs(ringCrossing[i].perp() - ringR);
    if (testDiff < rDiff) {
      rDiff = testDiff;
      theBin = i;
    }
  }
  return theBin;
}

References funct::abs(), mps_fire::i, perp(), ringPars, and TIDLayer::RingPar::theRingR.

Referenced by ringIndicesByCrossingProximity().

findNextIndex()

int TIDLayer::findNextIndex ( const GlobalPoint  ringCrossing[3], int  closest  ) const

private

Definition at line 283 of file TIDLayer.cc.

                                                                                {
  int firstIndexToCheck = (closest != 0) ? 0 : 1;
  float initialR = ringPars[firstIndexToCheck].theRingR;
  float rDiff = std::abs(ringCrossing[firstIndexToCheck].perp() - initialR);
  int theBin = firstIndexToCheck;
  for (int i = firstIndexToCheck + 1; i < 3; i++) {
    if (i != closest) {
      float ringR = ringPars[i].theRingR;
      float testDiff = std::abs(ringCrossing[i].perp() - ringR);
      if (testDiff < rDiff) {
        rDiff = testDiff;
        theBin = i;
      }
    }
  }
  return theBin;
}

References funct::abs(), mps_fire::i, perp(), ringPars, and TIDLayer::RingPar::theRingR.

Referenced by ringIndicesByCrossingProximity().

groupedCompatibleDetsV()

void TIDLayer::groupedCompatibleDetsV ( const TrajectoryStateOnSurface &  tsos, const Propagator &  prop, const MeasurementEstimator &  est, std::vector< DetGroup > &  result  ) const

override

Definition at line 156 of file TIDLayer.cc.

                                                                         {
  std::array<int, 3> const& ringIndices = ringIndicesByCrossingProximity(startingState, prop);
  if (ringIndices[0] == -1) {
    edm::LogError("TkDetLayers") << "TkRingedForwardLayer::groupedCompatibleDets : error in CrossingProximity";
    return;
  }
 
  std::array<vector<DetGroup>, 3> groupsAtRingLevel;
  //order is ring3,ring1,ring2 i.e. 2 0 1
  //                                0 1 2
  static constexpr int ringOrder[3]{1, 2, 0};
  auto index = [&ringIndices](int i) { return ringOrder[ringIndices[i]]; };
 
  auto& closestResult = groupsAtRingLevel[index(0)];
  theComps[ringIndices[0]]->groupedCompatibleDetsV(startingState, prop, est, closestResult);
  if (closestResult.empty()) {
    theComps[ringIndices[1]]->groupedCompatibleDetsV(startingState, prop, est, result);
    return;
  }
 
  DetGroupElement closestGel(closestResult.front().front());
  float rWindow = computeWindowSize(closestGel.det(), closestGel.trajectoryState(), est);
 
  if (!overlapInR(closestGel.trajectoryState(), ringIndices[1], rWindow)) {
    result.swap(closestResult);
    return;
  }
 
  auto& nextResult = groupsAtRingLevel[index(1)];
  theComps[ringIndices[1]]->groupedCompatibleDetsV(startingState, prop, est, nextResult);
  if (nextResult.empty()) {
    result.swap(closestResult);
    return;
  }
 
  if (!overlapInR(closestGel.trajectoryState(), ringIndices[2], rWindow)) {
    //then merge 2 levels & return
    orderAndMergeLevels(closestGel.trajectoryState(), prop, groupsAtRingLevel, result);
    return;
  }
 
  auto& nextNextResult = groupsAtRingLevel[index(2)];
  theComps[ringIndices[2]]->groupedCompatibleDetsV(startingState, prop, est, nextNextResult);
  if (nextNextResult.empty()) {
    // then merge 2 levels and return
    orderAndMergeLevels(closestGel.trajectoryState(), prop, groupsAtRingLevel, result);  //
    return;
  }
 
  // merge 3 level and return merged
  orderAndMergeLevels(closestGel.trajectoryState(), prop, groupsAtRingLevel, result);
}

References computeWindowSize(), TIDRing::groupedCompatibleDetsV(), mps_fire::i, overlapInR(), mps_fire::result, ringIndicesByCrossingProximity(), and theComps.

operator=()

TIDLayer& TIDLayer::operator= ( const TIDLayer &  )

delete

overlapInR()

bool TIDLayer::overlapInR ( const TrajectoryStateOnSurface &  tsos, int  i, double  ymax  ) const

private

Definition at line 301 of file TIDLayer.cc.

                                                                                            {
  // assume "fixed theta window", i.e. margin in local y = r is changing linearly with z
  float tsRadius = tsos.globalPosition().perp();
  float thetamin = (max(0., tsRadius - ymax)) / (std::abs(tsos.globalPosition().z()) + 10.f);  // add 10 cm contingency
  float thetamax = (tsRadius + ymax) / (std::abs(tsos.globalPosition().z()) - 10.f);
 
  // do the theta regions overlap ?
 
  return !(thetamin > ringPars[index].thetaRingMax || ringPars[index].thetaRingMin > thetamax);
}

References funct::abs(), f, TrajectoryStateOnSurface::globalPosition(), SiStripPI::max, PV3DBase< T, PVType, FrameType >::perp(), ringPars, TIDLayer::RingPar::thetaRingMax, TIDLayer::RingPar::thetaRingMin, L1TOccupancyClient_cfi::ymax, and PV3DBase< T, PVType, FrameType >::z().

Referenced by groupedCompatibleDetsV().

ringIndicesByCrossingProximity()

std::array< int, 3 > TIDLayer::ringIndicesByCrossingProximity ( const TrajectoryStateOnSurface &  startingState, const Propagator &  prop  ) const

private

Definition at line 212 of file TIDLayer.cc.

                                                                                          {
  typedef HelixForwardPlaneCrossing Crossing;
  typedef MeasurementEstimator::Local2DVector Local2DVector;
 
  HelixPlaneCrossing::PositionType startPos(startingState.globalPosition());
  HelixPlaneCrossing::DirectionType startDir(startingState.globalMomentum());
  PropagationDirection propDir(prop.propagationDirection());
  float rho(startingState.transverseCurvature());
 
  // calculate the crossings with the ring surfaces
  // rings are assumed to be sorted in R !
 
  Crossing myXing(startPos, startDir, rho, propDir);
 
  GlobalPoint ringCrossings[3];
  // vector<GlobalVector>  ringXDirections;
 
  for (int i = 0; i < 3; i++) {
    const BoundDisk& theRing = static_cast<const BoundDisk&>(theComps[i]->surface());
    pair<bool, double> pathlen = myXing.pathLength(theRing);
    if (pathlen.first) {
      ringCrossings[i] = GlobalPoint(myXing.position(pathlen.second));
      // ringXDirections.push_back( GlobalVector( myXing.direction(pathlen.second )));
    } else {
      // TO FIX.... perhaps there is something smarter to do
      //throw DetLayerException("trajectory doesn't cross TID rings");
      ringCrossings[i] = GlobalPoint(0., 0., 0.);
      //  ringXDirections.push_back( GlobalVector( 0.,0.,0.));
    }
  }
 
  int closestIndex = findClosest(ringCrossings);
  int nextIndex = findNextIndex(ringCrossings, closestIndex);
  if (closestIndex < 0 || nextIndex < 0)
    return std::array<int, 3>{{-1, -1, -1}};
  int nextNextIndex = -1;
  for (int i = 0; i < 3; i++) {
    if (i != closestIndex && i != nextIndex) {
      nextNextIndex = i;
      break;
    }
  }
 
  std::array<int, 3> indices{{closestIndex, nextIndex, nextNextIndex}};
  return indices;
}

References findClosest(), findNextIndex(), TrajectoryStateOnSurface::globalMomentum(), TrajectoryStateOnSurface::globalPosition(), mps_fire::i, bTagCombinedSVVariables_cff::indices, Propagator::propagationDirection(), rho, theComps, and TrajectoryStateOnSurface::transverseCurvature().

Referenced by groupedCompatibleDetsV().

subDetector()

SubDetector TIDLayer::subDetector ( ) const

inlineoverride

Definition at line 35 of file TIDLayer.h.

{ return GeomDetEnumerators::subDetGeom[GeomDetEnumerators::TID]; }

References GeomDetEnumerators::subDetGeom, and GeomDetEnumerators::TID.

Member Data Documentation

ringPars

RingPar TIDLayer::ringPars[3]

private

Definition at line 66 of file TIDLayer.h.

Referenced by findClosest(), findNextIndex(), and overlapInR().

theBasicComps

std::vector<GeomDet const*> TIDLayer::theBasicComps

private

Definition at line 60 of file TIDLayer.h.

Referenced by basicComponents().

theComponents

std::atomic<std::vector<const GeometricSearchDet*>*> TIDLayer::theComponents

mutableprivate

Definition at line 61 of file TIDLayer.h.

Referenced by ~TIDLayer().

theComps

const TIDRing* TIDLayer::theComps[3]

private

Definition at line 62 of file TIDLayer.h.

Referenced by groupedCompatibleDetsV(), ringIndicesByCrossingProximity(), and ~TIDLayer().