ErrorFrameTransformer Struct Reference

#include <ErrorFrameTransformer.h>

Public Types
typedef Surface::Scalar	Scalar

Static Public Member Functions
static LocalError	transform (const GlobalError &ge, const Surface &surf)
static GlobalError	transform (const LocalError &le, const Surface &surf)
static LocalErrorExtended	transform46 (const GlobalErrorExtended &ge, const AlgebraicVector &positions, const AlgebraicVector &directions)

Detailed Description

Definition at line 12 of file ErrorFrameTransformer.h.

Member Typedef Documentation

Scalar

typedef Surface::Scalar ErrorFrameTransformer::Scalar

Definition at line 13 of file ErrorFrameTransformer.h.

Member Function Documentation

transform() [1/2]

static LocalError ErrorFrameTransformer::transform ( const GlobalError &  ge, const Surface &  surf  )

inlinestatic

Definition at line 33 of file ErrorFrameTransformer.h.

                                                                          {
    Scalar cxx = ge.cxx();
    Scalar cyx = ge.cyx();
    Scalar cyy = ge.cyy();
    Scalar czx = ge.czx();
    Scalar czy = ge.czy();
    Scalar czz = ge.czz();
 
    Surface::RotationType r = surf.rotation();
 
    Scalar l11 = r.xx() * (r.xx() * cxx + r.xy() * cyx + r.xz() * czx) +
                 r.xy() * (r.xx() * cyx + r.xy() * cyy + r.xz() * czy) +
                 r.xz() * (r.xx() * czx + r.xy() * czy + r.xz() * czz);
    Scalar l12 = r.yx() * (r.xx() * cxx + r.xy() * cyx + r.xz() * czx) +
                 r.yy() * (r.xx() * cyx + r.xy() * cyy + r.xz() * czy) +
                 r.yz() * (r.xx() * czx + r.xy() * czy + r.xz() * czz);
    Scalar l22 = r.yx() * (r.yx() * cxx + r.yy() * cyx + r.yz() * czx) +
                 r.yy() * (r.yx() * cyx + r.yy() * cyy + r.yz() * czy) +
                 r.yz() * (r.yx() * czx + r.yy() * czy + r.yz() * czz);
 
    return LocalError(l11, l12, l22);
  }

References GlobalErrorBase< T, ErrorWeightType >::cxx(), GlobalErrorBase< T, ErrorWeightType >::cyx(), GlobalErrorBase< T, ErrorWeightType >::cyy(), GlobalErrorBase< T, ErrorWeightType >::czx(), GlobalErrorBase< T, ErrorWeightType >::czy(), GlobalErrorBase< T, ErrorWeightType >::czz(), alignCSCRings::r, and GloballyPositioned< T >::rotation().

transform() [2/2]

static GlobalError ErrorFrameTransformer::transform ( const LocalError &  le, const Surface &  surf  )

inlinestatic

Definition at line 16 of file ErrorFrameTransformer.h.

                                                                          {
    // the GlobalError is a sym matrix, initialisation takes only
    // 6 T because GlobalError is stored as a lower triangular matrix.
    Scalar cxx = le.xx();
    Scalar cxy = le.xy();
    Scalar cyy = le.yy();
 
    Surface::RotationType r = surf.rotation();
 
    return GlobalError(r.xx() * (r.xx() * cxx + r.yx() * cxy) + r.yx() * (r.xx() * cxy + r.yx() * cyy),
                       r.xx() * (r.xy() * cxx + r.yy() * cxy) + r.yx() * (r.xy() * cxy + r.yy() * cyy),
                       r.xy() * (r.xy() * cxx + r.yy() * cxy) + r.yy() * (r.xy() * cxy + r.yy() * cyy),
                       r.xx() * (r.xz() * cxx + r.yz() * cxy) + r.yx() * (r.xz() * cxy + r.yz() * cyy),
                       r.xy() * (r.xz() * cxx + r.yz() * cxy) + r.yy() * (r.xz() * cxy + r.yz() * cyy),
                       r.xz() * (r.xz() * cxx + r.yz() * cxy) + r.yz() * (r.xz() * cxy + r.yz() * cyy));
  }

References alignCSCRings::r, GloballyPositioned< T >::rotation(), LocalError::xx(), LocalError::xy(), and LocalError::yy().

Referenced by TestOutliers::analyze(), GsfConstraintAtVertex::constrainAtPoint(), DTSegmentUpdator::fit(), MuonTransientTrackingRecHit::globalDirectionError(), TValidTrackingRecHit::globalPositionError(), TRecHit5DParamConstraint::globalPositionError(), TRecHit2DPosConstraint::globalPositionError(), BaseTrackerRecHit::globalPositionError(), TValidTrackingRecHit::globalState(), BaseTrackerRecHit::globalState(), TkMSParameterizationBuilder::produce(), TrackerGeomDet::setAlignmentPositionError(), DynamicTruncation::testCSCstation(), and DynamicTruncation::testDTstation().

transform46()

static LocalErrorExtended ErrorFrameTransformer::transform46 ( const GlobalErrorExtended &  ge, const AlgebraicVector &  positions, const AlgebraicVector &  directions  )

inlinestatic

Definition at line 57 of file ErrorFrameTransformer.h.

                                                                           {
    const AlgebraicSymMatrix66& as(ge.matrix());
 
    AlgebraicMatrix46 jacobian46;
    jacobian46[0][0] = 1.;
    jacobian46[0][1] = 0.;
    jacobian46[0][2] = -directions[0];
    jacobian46[0][3] = -positions[1] * directions[0];
    jacobian46[0][4] = positions[0] * directions[0];
    jacobian46[0][5] = -positions[1];
 
    jacobian46[1][0] = 0.;
    jacobian46[1][1] = 1.;
    jacobian46[1][2] = -directions[1];
    jacobian46[1][3] = -positions[1] * directions[1];
    jacobian46[1][4] = positions[0] * directions[1];
    jacobian46[1][5] = positions[0];
 
    jacobian46[2][0] = 0.;
    jacobian46[2][1] = 0.;
    jacobian46[2][2] = 0.;
    jacobian46[2][3] = -directions[1] * directions[0];
    jacobian46[2][4] = 1. + directions[0] * directions[0];
    jacobian46[2][5] = -directions[1];
 
    jacobian46[3][0] = 0.;
    jacobian46[3][1] = 0.;
    jacobian46[3][2] = 0.;
    jacobian46[3][3] = -1. - directions[1] * directions[1];
    jacobian46[3][4] = directions[0] * directions[1];
    jacobian46[3][5] = directions[0];
 
    AlgebraicSymMatrix44 out = ROOT::Math::Similarity(jacobian46, as);
 
    LocalErrorExtended newError(out);
 
    return newError;
  }

References GlobalErrorBaseExtended< T, ErrorWeightType >::matrix(), and MillePedeFileConverter_cfg::out.

Referenced by MuonTransientTrackingRecHit::parametersError().