TwoBowedSurfacesAlignmentParameters Class Reference

#include <TwoBowedSurfacesAlignmentParameters.h>

Inheritance diagram for TwoBowedSurfacesAlignmentParameters:

Public Types
enum	AlignmentParameterName {   dx1 = BowedDerivs::dx, dy1 = BowedDerivs::dy, dz1 = BowedDerivs::dz, dslopeX1 = BowedDerivs::dslopeX,   dslopeY1 = BowedDerivs::dslopeY, drotZ1 = BowedDerivs::drotZ, dsagittaX1 = BowedDerivs::dsagittaX, dsagittaXY1 = BowedDerivs::dsagittaXY,   dsagittaY1 = BowedDerivs::dsagittaY, dx2 = BowedDerivs::dx + BowedDerivs::N_PARAM, dy2 = BowedDerivs::dy + BowedDerivs::N_PARAM, dz2 = BowedDerivs::dz + BowedDerivs::N_PARAM,   dslopeX2 = BowedDerivs::dslopeX + BowedDerivs::N_PARAM, dslopeY2 = BowedDerivs::dslopeY + BowedDerivs::N_PARAM, drotZ2 = BowedDerivs::drotZ + BowedDerivs::N_PARAM, dsagittaX2 = BowedDerivs::dsagittaX + BowedDerivs::N_PARAM,   dsagittaXY2 = BowedDerivs::dsagittaXY + BowedDerivs::N_PARAM, dsagittaY2 = BowedDerivs::dsagittaY + BowedDerivs::N_PARAM, N_PARAM = BowedDerivs::N_PARAM + BowedDerivs::N_PARAM }
typedef BowedSurfaceAlignmentDerivatives	BowedDerivs
	Give parameters a name (do not change order, see derivatives(..)!) More...
Public Types inherited from AlignmentParameters
typedef AlignmentParametersData::DataContainer	DataContainer

Public Member Functions
void	apply () override
	apply parameters to alignable More...
TwoBowedSurfacesAlignmentParameters *	clone (const AlgebraicVector &parameters, const AlgebraicSymMatrix &covMatrix) const override
	Clone all parameters (for update of parameters) More...
TwoBowedSurfacesAlignmentParameters *	cloneFromSelected (const AlgebraicVector &parameters, const AlgebraicSymMatrix &covMatrix) const override
	Clone selected parameters (for update of parameters) More...
AlgebraicMatrix	derivatives (const TrajectoryStateOnSurface &tsos, const AlignableDetOrUnitPtr &aliDet) const override
	Get all derivatives. More...
virtual void	print () const
	print parameters to screen More...
	TwoBowedSurfacesAlignmentParameters (Alignable *alignable)
	Constructor with empty parameters/covariance. More...
	TwoBowedSurfacesAlignmentParameters (Alignable *alignable, const AlgebraicVector &parameters, const AlgebraicSymMatrix &covMatrix)
	Constructor for full set of parameters. More...
	TwoBowedSurfacesAlignmentParameters (Alignable *alignable, const AlgebraicVector &parameters, const AlgebraicSymMatrix &covMatrix, const std::vector< bool > &selection)
	Constructor for selection. More...
int	type () const override
	tell type (AlignmentParametersFactory::ParametersType - but no circular dependency) More...
double	ySplit () const
	~TwoBowedSurfacesAlignmentParameters () override
	Destructor. More...
Public Member Functions inherited from AlignmentParameters
Alignable *	alignable (void) const
	Get pointer to corresponding alignable. More...
	AlignmentParameters ()
	Default constructor. More...
	AlignmentParameters (Alignable *object, const AlgebraicVector &par, const AlgebraicSymMatrix &cov)
	Constructor from given input. More...
	AlignmentParameters (Alignable *object, const AlgebraicVector &par, const AlgebraicSymMatrix &cov, const std::vector< bool > &sel)
	Constructor including selection of active parameters. More...
	AlignmentParameters (Alignable *object, const DataContainer &data)
	Constructor. More...
const AlgebraicSymMatrix &	covariance (void) const
	Get parameter covariance matrix. More...
virtual unsigned int	hierarchyLevel () const
bool	isValid (void) const
	Get validity flag. More...
int	numSelected (void) const
	Get number of selected parameters. More...
const AlgebraicVector &	parameters (void) const
	Get alignment parameters. More...
AlgebraicSymMatrix	selectedCovariance (void) const
	Get covariance matrix of selected parameters. More...
virtual AlgebraicMatrix	selectedDerivatives (const TrajectoryStateOnSurface &tsos, const AlignableDetOrUnitPtr &alidet) const
AlgebraicVector	selectedParameters (void) const
	Get selected parameters. More...
const std::vector< bool > &	selector (void) const
	Get alignment parameter selector vector. More...
void	setUserVariables (AlignmentUserVariables *auv)
	Set pointer to user variables. More...
void	setValid (bool v)
	Set validity flag. More...
int	size (void) const
	Get number of parameters. More...
AlignmentUserVariables *	userVariables (void) const
	Get pointer to user variables. More...
virtual	~AlignmentParameters ()
	Destructor. More...

Private Member Functions
double	ySplitFromAlignable (const Alignable *ali) const

Private Attributes
double	ySplit_

Additional Inherited Members
Protected Member Functions inherited from AlignmentParameters
AlgebraicSymMatrix	collapseSymMatrix (const AlgebraicSymMatrix &m, const std::vector< bool > &sel) const
AlgebraicVector	collapseVector (const AlgebraicVector &m, const std::vector< bool > &sel) const
AlgebraicSymMatrix	expandSymMatrix (const AlgebraicSymMatrix &m, const std::vector< bool > &sel) const
AlgebraicVector	expandVector (const AlgebraicVector &m, const std::vector< bool > &sel) const
Protected Attributes inherited from AlignmentParameters
bool	bValid
	True if parameters are valid. More...
Alignable *	theAlignable
DataContainer	theData
AlignmentUserVariables *	theUserVariables

Detailed Description

Concrete class for alignment parameters and associated quantities [derived from AlignmentParameters]. The alignable is assumed to have in fact two surfaces devided at a specific local ySplit. The number of parameters N_PARAM is 2x9, i.e. one set of

• 3 translations
• 3 rotations/slopes
• 3 bows/sagittas (u, v and mixed term) for the two surfaces (similar as in BowedSurfaceAlignmentParameters). Storage is done differently: The movements and translations are averaged and applied to the alignable in the 'classical' way. In SurfaceDeformation we store:

the half differences of the movements and rotations, to be taken into account, with positive/negative sign, for corrections for the surface at lower/higher y,

• the mean values 'm' and half differences 'hd' of the bows/sagittas of each surface, where these corrections have to be applied as m+hd for the one and m-hd for the other sensor

  Date:

  2010/10/26 20:41:08

  Revision:

  1.1

  (last update by

  Author:

  flucke

  )

Definition at line 43 of file TwoBowedSurfacesAlignmentParameters.h.

Member Typedef Documentation

typedef BowedSurfaceAlignmentDerivatives TwoBowedSurfacesAlignmentParameters::BowedDerivs

Give parameters a name (do not change order, see derivatives(..)!)

Definition at line 46 of file TwoBowedSurfacesAlignmentParameters.h.

Member Enumeration Documentation

enum TwoBowedSurfacesAlignmentParameters::AlignmentParameterName

Enumerator
dx1
dy1
dz1
dslopeX1
dslopeY1
drotZ1
dsagittaX1
dsagittaXY1
dsagittaY1
dx2
dy2
dz2
dslopeX2
dslopeY2
drotZ2
dsagittaX2
dsagittaXY2
dsagittaY2
N_PARAM

Definition at line 47 of file TwoBowedSurfacesAlignmentParameters.h.

                              {
    // 1st surface
    dx1 = BowedDerivs::dx,
    dy1 = BowedDerivs::dy,
    dz1 = BowedDerivs::dz,
    dslopeX1 = BowedDerivs::dslopeX,  // NOTE: slope(u) -> halfWidth*tan(beta),
    dslopeY1 = BowedDerivs::dslopeY,  //       slope(v) -> halfLength*tan(alpha)
    drotZ1 = BowedDerivs::drotZ,      //       rot(w)   -> g-scale*gamma
    dsagittaX1 = BowedDerivs::dsagittaX,
    dsagittaXY1 = BowedDerivs::dsagittaXY,
    dsagittaY1 = BowedDerivs::dsagittaY,
    // 2nd surface
    dx2 = BowedDerivs::dx + BowedDerivs::N_PARAM,
    dy2 = BowedDerivs::dy + BowedDerivs::N_PARAM,
    dz2 = BowedDerivs::dz + BowedDerivs::N_PARAM,
    dslopeX2 = BowedDerivs::dslopeX + BowedDerivs::N_PARAM,  // NOTE: slope(u) -> k*tan(beta),
    dslopeY2 = BowedDerivs::dslopeY + BowedDerivs::N_PARAM,  //       slope(v) -> k*tan(alpha)
    drotZ2 = BowedDerivs::drotZ + BowedDerivs::N_PARAM,      //       rot(w)   -> m*gamma
    dsagittaX2 = BowedDerivs::dsagittaX + BowedDerivs::N_PARAM,
    dsagittaXY2 = BowedDerivs::dsagittaXY + BowedDerivs::N_PARAM,
    dsagittaY2 = BowedDerivs::dsagittaY + BowedDerivs::N_PARAM,
    // number of parameters
    N_PARAM = BowedDerivs::N_PARAM + BowedDerivs::N_PARAM
  };

Constructor & Destructor Documentation

TwoBowedSurfacesAlignmentParameters::TwoBowedSurfacesAlignmentParameters

(

Alignable *

alignable

)

Constructor with empty parameters/covariance.

Definition at line 27 of file TwoBowedSurfacesAlignmentParameters.cc.

Referenced by clone().

    : AlignmentParameters(ali, AlgebraicVector(N_PARAM), AlgebraicSymMatrix(N_PARAM, 0)),
      ySplit_(this->ySplitFromAlignable(ali)) {}

TwoBowedSurfacesAlignmentParameters::TwoBowedSurfacesAlignmentParameters	(	Alignable *	alignable,
		const AlgebraicVector &	parameters,
		const AlgebraicSymMatrix &	covMatrix
	)

Constructor for full set of parameters.

Definition at line 32 of file TwoBowedSurfacesAlignmentParameters.cc.

References Exception, and N_PARAM.

    : AlignmentParameters(alignable, parameters, covMatrix), ySplit_(this->ySplitFromAlignable(alignable)) {
  if (parameters.num_row() != N_PARAM) {
    throw cms::Exception("BadParameters") << "in TwoBowedSurfacesAlignmentParameters(): " << parameters.num_row()
                                          << " instead of " << N_PARAM << " parameters.";
  }
}

TwoBowedSurfacesAlignmentParameters::TwoBowedSurfacesAlignmentParameters	(	Alignable *	alignable,
		const AlgebraicVector &	parameters,
		const AlgebraicSymMatrix &	covMatrix,
		const std::vector< bool > &	selection
	)

Constructor for selection.

Definition at line 43 of file TwoBowedSurfacesAlignmentParameters.cc.

References Exception, and N_PARAM.

    : AlignmentParameters(alignable, parameters, covMatrix, selection), ySplit_(this->ySplitFromAlignable(alignable)) {
  if (parameters.num_row() != N_PARAM) {
    throw cms::Exception("BadParameters") << "in TwoBowedSurfacesAlignmentParameters(): " << parameters.num_row()
                                          << " instead of " << N_PARAM << " parameters.";
  }
}

TwoBowedSurfacesAlignmentParameters::~TwoBowedSurfacesAlignmentParameters ( )

inlineoverride

Destructor.

Definition at line 87 of file TwoBowedSurfacesAlignmentParameters.h.

{};

Member Function Documentation

void TwoBowedSurfacesAlignmentParameters::apply ( )

overridevirtual

apply parameters to alignable

Implements AlignmentParameters.

Definition at line 115 of file TwoBowedSurfacesAlignmentParameters.cc.

References Alignable::addSurfaceDeformation(), AlignmentParameters::alignable(), drotZ1, drotZ2, dsagittaX1, dsagittaX2, dsagittaXY1, dsagittaXY2, dsagittaY1, dsagittaY2, dslopeX1, dslopeX2, dslopeY1, dslopeY2, dx1, dy1, dz1, Exception, BowedSurfaceAlignmentDerivatives::gammaScale(), mps_fire::i, AlignableSurface::length(), Alignable::move(), BowedSurfaceAlignmentDerivatives::N_PARAM, submitPVValidationJobs::params, align::rectify(), makeMuonMisalignmentScenario::rot, Alignable::rotateInGlobalFrame(), AlignmentParameters::selector(), edm::shift, Alignable::surface(), AlignmentParameters::theData, AlignableSurface::toGlobal(), align::toMatrix(), AlignableSurface::width(), and ySplit_.

Referenced by heavyIonTools.ConfigureHeavyIons::__call__(), coreTools.RunOnData::__call__(), trackTools.MakeAODTrackCandidates::__call__(), runJetUncertainties.RunJetUncertainties::__call__(), metTools.AddMETCollection::__call__(), heavyIonTools.ProductionDefaults::__call__(), cmsswVersionTools.PickRelValInputFiles::__call__(), coreTools.RemoveMCMatching::__call__(), trackTools.MakePATTrackCandidates::__call__(), trigTools.SwitchOnTrigger::__call__(), runMETCorrectionsAndUncertainties.RunMETCorrectionsAndUncertainties::__call__(), heavyIonTools.SelectionDefaults::__call__(), heavyIonTools.DisbaleMonteCarloDeps::__call__(), trigTools.SwitchOnTriggerStandAlone::__call__(), tauTools.AddTauCollection::__call__(), trackTools.MakeTrackCandidates::__call__(), trigTools.SwitchOnTriggerMatching::__call__(), trigTools.SwitchOnTriggerMatchingStandAlone::__call__(), trigTools.SwitchOnTriggerMatchEmbedding::__call__(), jetTools.AddJetCollection::__call__(), jetTools.SwitchJetCollection::__call__(), jetTools.UpdateJetCollection::__call__(), jetTools.AddJetID::__call__(), and jetTools.SetTagInfos::__call__().

                                                {
  Alignable *alignable = this->alignable();
  if (!alignable) {
    throw cms::Exception("BadParameters") << "TwoBowedSurfacesAlignmentParameters::apply: parameters without "
                                             "alignable";
  }

  // Some repeatedly needed variables
  const AlignableSurface &surface = alignable->surface();
  const double halfLength = surface.length() * 0.5;         // full module
  const double halfLength1 = (halfLength + ySplit_) * 0.5;  // low-y surface
  const double halfLength2 = (halfLength - ySplit_) * 0.5;  // high-y surface

  // first copy the parameters into separate parts for the two surfaces
  const AlgebraicVector &params = theData->parameters();
  std::vector<double> rigidBowPar1(BowedDerivs::N_PARAM);  // 1st surface (y <  ySplit_)
  std::vector<double> rigidBowPar2(BowedDerivs::N_PARAM);  // 2nd surface (y >= ySplit_)
  for (unsigned int i = 0; i < BowedDerivs::N_PARAM; ++i) {
    rigidBowPar1[i] = params[i];
    rigidBowPar2[i] = params[i + BowedDerivs::N_PARAM];
  }
  // Now adjust slopes to angles, note that dslopeX <-> -beta & dslopeY <->
  // alpha, see BowedSurfaceAlignmentParameters::rotation(): FIXME: use atan?
  rigidBowPar1[3] = params[dslopeY1] / halfLength1;               // alpha1
  rigidBowPar2[3] = params[dslopeY2] / halfLength2;               // alpha2
  rigidBowPar1[4] = -params[dslopeX1] / (surface.width() * 0.5);  // beta1
  rigidBowPar2[4] = -params[dslopeX2] / (surface.width() * 0.5);  // beta2
  // gamma is simply scaled
  const double gammaScale1 = BowedDerivs::gammaScale(surface.width(), 2.0 * halfLength1);
  rigidBowPar1[5] = params[drotZ1] / gammaScale1;
  //   const double gammaScale2 = std::sqrt(halfLength2 * halfLength2
  //                       + surface.width() * surface.width()/4.);
  const double gammaScale2 = BowedDerivs::gammaScale(surface.width(), 2.0 * halfLength2);
  rigidBowPar2[5] = params[drotZ2] / gammaScale2;

  // Get rigid body rotations of full module as mean of the two surfaces:
  align::EulerAngles angles(3);  // to become 'common' rotation in local frame
  for (unsigned int i = 0; i < 3; ++i) {
    angles[i] = (rigidBowPar1[i + 3] + rigidBowPar2[i + 3]) * 0.5;
  }
  // Module rotations are around other axes than the one we determined,
  // so we have to correct that the surfaces are shifted by the rotation around
  // the module axis - in linear approximation just an additional shift:
  const double yMean1 = -halfLength + halfLength1;  // y of alpha1 rotation axis in module frame
  const double yMean2 = halfLength - halfLength2;   // y of alpha2 rotation axis in module frame
  rigidBowPar1[dz1] -= angles[0] * yMean1;          // correct w1 for alpha
  rigidBowPar2[dz1] -= angles[0] * yMean2;          // correct w2 for alpha
  // Nothing for beta1/2 since anyway both around the y-axis of the module.
  rigidBowPar1[dx1] += angles[2] * yMean1;  // correct x1 for gamma
  rigidBowPar2[dx1] += angles[2] * yMean2;  // correct x1 for gamma

  // Get rigid body shifts of full module as mean of the two surfaces:
  const align::LocalVector shift((rigidBowPar1[dx1] + rigidBowPar2[dx1]) * 0.5,   // dx1!
                                 (rigidBowPar1[dy1] + rigidBowPar2[dy1]) * 0.5,   // dy1!
                                 (rigidBowPar1[dz1] + rigidBowPar2[dz1]) * 0.5);  // dz1!
  // Apply module shift and rotation:
  alignable->move(surface.toGlobal(shift));
  // original code:
  //  alignable->rotateInLocalFrame( align::toMatrix(angles) );
  // correct for rounding errors:
  align::RotationType rot(surface.toGlobal(align::toMatrix(angles)));
  align::rectify(rot);
  alignable->rotateInGlobalFrame(rot);

  // only update the surface deformations if they were selected for alignment
  if (selector()[dsagittaX1] || selector()[dsagittaXY1] || selector()[dsagittaY1] || selector()[dsagittaX2] ||
      selector()[dsagittaXY2] || selector()[dsagittaY2]) {
    // Fill surface structures with mean bows and half differences for all
    // parameters:
    std::vector<align::Scalar> deformations;
    deformations.reserve(13);
    // first part: average bows
    deformations.push_back((params[dsagittaX1] + params[dsagittaX2]) * 0.5);
    deformations.push_back((params[dsagittaXY1] + params[dsagittaXY2]) * 0.5);
    deformations.push_back((params[dsagittaY1] + params[dsagittaY2]) * 0.5);
    // second part: half difference of all corrections
    for (unsigned int i = 0; i < BowedDerivs::N_PARAM; ++i) {
      // sign means that we have to apply e.g.
      // - sagittaX for sensor 1: deformations[0] + deformations[9]
      // - sagittaX for sensor 2: deformations[0] - deformations[9]
      // - additional dx for sensor 1:  deformations[3]
      // - additional dx for sensor 2: -deformations[3]
      deformations.push_back((rigidBowPar1[i] - rigidBowPar2[i]) * 0.5);
    }
    // finally: keep track of where we have split the module
    deformations.push_back(ySplit_);  // index is 12

    const TwoBowedSurfacesDeformation deform{deformations};

    // FIXME: true to propagate down?
    //        Needed for hierarchy with common deformation parameter,
    //        but that is not possible now anyway.
    alignable->addSurfaceDeformation(&deform, false);
  }
}

TwoBowedSurfacesAlignmentParameters * TwoBowedSurfacesAlignmentParameters::clone ( const AlgebraicVector &  parameters, const AlgebraicSymMatrix &  covMatrix  ) const

overridevirtual

Clone all parameters (for update of parameters)

Implements AlignmentParameters.

Definition at line 55 of file TwoBowedSurfacesAlignmentParameters.cc.

References AlignmentParameters::alignable(), AlignmentParameters::isValid(), AlignmentParameters::selector(), AlignmentParameters::setUserVariables(), AlignmentParameters::setValid(), TwoBowedSurfacesAlignmentParameters(), and AlignmentParameters::userVariables().

Referenced by cloneFromSelected().

                                                                                  {
  TwoBowedSurfacesAlignmentParameters *rbap =
      new TwoBowedSurfacesAlignmentParameters(this->alignable(), parameters, covMatrix, selector());

  if (this->userVariables())
    rbap->setUserVariables(this->userVariables()->clone());
  rbap->setValid(this->isValid());

  return rbap;
}

TwoBowedSurfacesAlignmentParameters * TwoBowedSurfacesAlignmentParameters::cloneFromSelected ( const AlgebraicVector &  parameters, const AlgebraicSymMatrix &  covMatrix  ) const

overridevirtual

Clone selected parameters (for update of parameters)

Implements AlignmentParameters.

Definition at line 68 of file TwoBowedSurfacesAlignmentParameters.cc.

References clone(), AlignmentParameters::expandSymMatrix(), AlignmentParameters::expandVector(), and AlignmentParameters::selector().

                                                                                  {
  return this->clone(this->expandVector(parameters, this->selector()),
                     this->expandSymMatrix(covMatrix, this->selector()));
}

AlgebraicMatrix TwoBowedSurfacesAlignmentParameters::derivatives ( const TrajectoryStateOnSurface &  tsos, const AlignableDetOrUnitPtr &  aliDet  ) const

overridevirtual

Get all derivatives.

Implements AlignmentParameters.

Definition at line 75 of file TwoBowedSurfacesAlignmentParameters.cc.

References AlignmentParameters::alignable(), BowedSurfaceAlignmentDerivatives::dx, dx2, Exception, mps_fire::i, AlignableSurface::length(), TrajectoryStateOnSurface::localParameters(), pixelTopology::localY(), LocalTrajectoryParameters::mixedFormatVector(), BowedSurfaceAlignmentDerivatives::N_PARAM, N_PARAM, mps_fire::result, Alignable::surface(), AlignableSurface::width(), and ySplit_.

                                                                                                            {
  const Alignable *ali = this->alignable();  // Alignable of these parameters
  AlgebraicMatrix result(N_PARAM, 2);        // initialised with zeros

  if (ali == alidet) {
    const AlignableSurface &surf = ali->surface();

    // matrix of dimension BowedDerivs::N_PARAM x 2
    const AlgebraicMatrix derivs(BowedDerivs()(tsos, surf.width(), surf.length(), true, ySplit_));  // split at ySplit_!

    // Parameters belong to surface part with y < ySplit_ or y >= ySplit_?
    const double localY = tsos.localParameters().mixedFormatVector()[4];
    const unsigned int indexOffset = (localY < ySplit_ ? 0 : dx2);
    // Copy derivatives to relevant part of result
    for (unsigned int i = BowedDerivs::dx; i < BowedDerivs::N_PARAM; ++i) {
      result[indexOffset + i][0] = derivs[i][0];
      result[indexOffset + i][1] = derivs[i][1];
    }
  } else {
    // The following is even more difficult for
    // TwoBowedSurfacesAlignmentParameters than for
    // BowedSurfaceAlignmentParameters where this text comes from:
    //
    // We could give this a meaning by applying frame-to-frame derivatives
    // to the rigid body part of the parameters (be careful that alpha ~=
    // dslopeY and beta ~= -dslopeX, but with changed scale!) and keep the
    // surface structure parameters untouched in local meaning. In this way we
    // could do higher level alignment and determine 'average' surface
    // structures for the components.
    throw cms::Exception("MisMatch") << "TwoBowedSurfacesAlignmentParameters::derivatives: The hit "
                                        "alignable must match the "
                                     << "aligned one (i.e. bowed surface parameters cannot be used for "
                                        "composed alignables)\n";
  }

  return result;
}

void TwoBowedSurfacesAlignmentParameters::print ( void  ) const

virtual

print parameters to screen

Definition at line 215 of file TwoBowedSurfacesAlignmentParameters.cc.

References gather_cfg::cout, and AlignmentParameters::theData.

                                                      {
  std::cout << "Contents of TwoBowedSurfacesAlignmentParameters:"
            << "\nParameters: " << theData->parameters() << "\nCovariance: " << theData->covariance() << std::endl;
}

int TwoBowedSurfacesAlignmentParameters::type ( ) const

overridevirtual

tell type (AlignmentParametersFactory::ParametersType - but no circular dependency)

Implements AlignmentParameters.

Definition at line 212 of file TwoBowedSurfacesAlignmentParameters.cc.

References AlignmentParametersFactory::kTwoBowedSurfaces.

{ return AlignmentParametersFactory::kTwoBowedSurfaces; }

double TwoBowedSurfacesAlignmentParameters::ySplit ( ) const

inline

Definition at line 105 of file TwoBowedSurfacesAlignmentParameters.h.

References ySplit_.

Referenced by PedeSteererWeakModeConstraints::getDoubleSensorPosition(), and ParametersToParametersDerivatives::init2BowedRigid().

{ return ySplit_; }

double TwoBowedSurfacesAlignmentParameters::ySplitFromAlignable ( const Alignable *  ali ) const

private

Definition at line 221 of file TwoBowedSurfacesAlignmentParameters.cc.

References Alignable::globalPosition(), and alignCSCRings::r.

                                                                                          {
  if (!ali)
    return 0.;

  const align::PositionType pos(ali->globalPosition());
  const double r = pos.perp();

  // The returned numbers for TEC are calculated as stated below from
  // what is found in CMS-NOTE 2003/20.
  // Note that at that time it was planned to use ST sensors for the outer TEC
  // while in the end there are only a few of them in the tracker - the others
  // are HPK. No idea whether there are subtle changes in geometry. The numbers
  // have been cross checked with y-residuals in data, see
  // https://hypernews.cern.ch/HyperNews/CMS/get/recoTracking/1018/1/1/2/1/1/1/2/1.html.

  if (r < 58.) {  // Pixel, TIB, TID or TEC ring 1-4
    edm::LogError("Alignment") << "@SUB=TwoBowedSurfacesAlignmentParameters::ySplitFromAlignable"
                               << "There are no split modules for radii < 58, but r = " << r;
    return 0.;
  } else if (fabs(pos.z()) < 118.) {  // TOB
    return 0.;
  } else if (r > 90.) {  // TEC ring 7
    // W7a Height active= 106.900mm (Tab. 2) (but 106.926 mm p. 40!?)
    // W7a R min active = 888.400mm (Paragraph 5.5.7)
    // W7a R max active = W7a R min active + W7a Height active =
    //                  = 888.400mm + 106.900mm = 995.300mm
    // W7b Height active=  94.900mm (Tab. 2)  (but 94.876 mm p. 41!?)
    // W7b R min active = 998.252mm (Paragraph 5.5.8)
    // W7b R max active = 998.252mm + 94.900mm = 1093.152mm
    // mean radius module = 0.5*(1093.152mm + 888.400mm) = 990.776mm
    // mean radius gap = 0.5*(998.252mm + 995.300mm) = 996.776mm
    // ySplit = (mean radius gap - mean radius module) // local y and r have
    // same directions!
    //        = 996.776mm - 990.776mm = 6mm
    return 0.6;
  } else if (r > 75.) {  // TEC ring 6
    // W6a Height active= 96.100mm (Tab. 2) (but 96.136 mm p. 38!?)
    // W6a R min active = 727.000mm (Paragraph 5.5.5)
    // W6a R max active = W6a R min active + W6a Height active =
    //                  = 727.000mm + 96.100mm = 823.100mm
    // W6b Height active= 84.900mm (Tab. 2) (but 84.936 mm p. 39!?)
    // W6b R min active = 826.060mm (Paragraph 5.5.6)
    // W6b R max active = 826.060mm + 84.900mm = 910.960mm
    // mean radius module = 0.5*(910.960mm + 727.000mm) = 818.980mm
    // mean radius gap = 0.5*(826.060mm + 823.100mm) = 824.580mm
    //          -1: local y and r have opposite directions!
    // ySplit = -1*(mean radius gap - mean radius module)
    //        = -1*(824.580mm - 818.980mm) = -5.6mm
    return -0.56;
  } else {  // TEC ring 5 - smaller radii alreay excluded before
    // W5a Height active= 81.200mm (Tab. 2) (but 81.169 mm p. 36!?)
    // W5a R min active = 603.200mm (Paragraph 5.5.3)
    // W5a R max active = W5a R min active + W5a Height active =
    //                  = 603.200mm + 81.200mm = 684.400mm
    // W5b Height active= 63.200mm (Tab. 2) (63.198 mm on p. 37)
    // W5b R min active = 687.293mm (Abschnitt 5.5.4 der note)
    // W5b R max active = 687.293mm + 63.200mm = 750.493mm
    // mean radius module = 0.5*(750.493mm + 603.200mm) = 676.8465mm
    // mean radius gap = 0.5*(687.293mm + 684.400mm) = 685.8465mm
    //          -1: local y and r have opposite directions!
    // ySplit = -1*(mean radius gap - mean radius module)
    //        = -1*(685.8465mm - 676.8465mm) = -9mm
    return -0.9;
  }
  //  return 0.;
}

Member Data Documentation

double TwoBowedSurfacesAlignmentParameters::ySplit_

private

Definition at line 110 of file TwoBowedSurfacesAlignmentParameters.h.

Referenced by apply(), derivatives(), and ySplit().