ProxyPixelTopology.cc

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#include "DataFormats/GeometrySurface/interface/BoundPlane.h"
#include "DataFormats/GeometrySurface/interface/Bounds.h"

#include "Geometry/TrackerGeometryBuilder/interface/ProxyPixelTopology.h"
#include "Geometry/TrackerGeometryBuilder/interface/PixelGeomDetType.h"

ProxyPixelTopology::ProxyPixelTopology(PixelGeomDetType const * type, BoundPlane * bp)
  :theType(type), theLength(bp->bounds().length()), theWidth(bp->bounds().width())
{
  
}

LocalPoint ProxyPixelTopology::localPosition( const MeasurementPoint& mp ) const
{
  return specificTopology().localPosition(mp);
}

LocalPoint ProxyPixelTopology::localPosition( const MeasurementPoint& mp, 
                          const Topology::LocalTrackPred &trkPred ) const
{
  if (!this->surfaceDeformation()) return specificTopology().localPosition(mp);
  
  // add correction from SurfaceDeformation
  const LocalPoint posOld(specificTopology().localPosition(mp)); // 'original position'
  const SurfaceDeformation::Local2DVector corr(this->positionCorrection(trkPred));
  
  return LocalPoint(posOld.x()+corr.x(), posOld.y()+corr.y(), posOld.z());
}

LocalError ProxyPixelTopology::localError( const MeasurementPoint& mp,
                       const MeasurementError& me ) const
{
  return specificTopology().localError(mp, me);
}

LocalError ProxyPixelTopology::localError( const MeasurementPoint& mp,
                       const MeasurementError& me, 
                       const Topology::LocalTrackPred &trkPred ) const
{
  // The topology knows to calculate the cartesian error from measurement frame.
  // But assuming no uncertainty on the SurfaceDeformation variables,
  // the errors do not change from a simple shift to compensate
  // that the track 'sees' the surface at another place than it thinks...
  return specificTopology().localError(mp, me);
}

MeasurementPoint ProxyPixelTopology::measurementPosition( const LocalPoint& lp ) const
{
  return specificTopology().measurementPosition(lp);
}

MeasurementPoint ProxyPixelTopology::measurementPosition( const LocalPoint& lp, 
                              const Topology::LocalTrackAngles &dir ) const
{
  if (!this->surfaceDeformation()) return specificTopology().measurementPosition(lp);

  // subtract correction from SurfaceDeformation
  const SurfaceDeformation::Local2DVector corr(this->positionCorrection(lp, dir));
  const LocalPoint posOrig(lp.x() - corr.x(), lp.y() - corr.y(), lp.z());

  return specificTopology().measurementPosition(posOrig);
}

MeasurementError ProxyPixelTopology::measurementError( const LocalPoint &lp, const LocalError &le ) const
{
  return specificTopology().measurementError(lp, le);
}

MeasurementError ProxyPixelTopology::measurementError( const LocalPoint &lp, const LocalError &le,
                               const Topology::LocalTrackAngles &dir ) const
{
  if (!this->surfaceDeformation()) return specificTopology().measurementError(lp, le);

  // subtract correction from SurfaceDeformation
  const SurfaceDeformation::Local2DVector corr(this->positionCorrection(lp, dir));
  const LocalPoint posOrig(lp.x() - corr.x(), lp.y() - corr.y(), lp.z());

  return specificTopology().measurementError(posOrig, le);
}

int ProxyPixelTopology::channel( const LocalPoint& lp) const
{
  return specificTopology().channel(lp);
}

int ProxyPixelTopology::channel( const LocalPoint &lp, const Topology::LocalTrackAngles &dir) const
{
   if (!this->surfaceDeformation()) return specificTopology().channel(lp);

  // subtract correction from SurfaceDeformation
  const SurfaceDeformation::Local2DVector corr(this->positionCorrection(lp, dir));
  const LocalPoint posOrig(lp.x() - corr.x(), lp.y() - corr.y(), lp.z());
    
  return specificTopology().channel(posOrig);
}

std::pair<float,float> ProxyPixelTopology::pixel( const LocalPoint& lp ) const
{
  return specificTopology().pixel(lp);
}

std::pair<float,float> ProxyPixelTopology::pixel( const LocalPoint& lp,
                          const Topology::LocalTrackAngles &dir ) const
{
  if (!this->surfaceDeformation()) return specificTopology().pixel(lp);

  // subtract correction from SurfaceDeformation
  const SurfaceDeformation::Local2DVector corr(this->positionCorrection(lp, dir));
  const LocalPoint posOrig(lp.x() - corr.x(), lp.y() - corr.y(), lp.z());
  
  return specificTopology().pixel(posOrig);
}

float ProxyPixelTopology::localX(const float mpX) const
{
  return specificTopology().localX(mpX);
}

float ProxyPixelTopology::localX(const float mpX,
                 const Topology::LocalTrackPred &trkPred) const
{
  if (!this->surfaceDeformation()) return specificTopology().localX(mpX);
  
  // add correction from SurfaceDeformation
  float xOld = specificTopology().localX(mpX); // 'original position'
  const SurfaceDeformation::Local2DVector corr(this->positionCorrection(trkPred));
  
  return xOld + corr.x();
}

float ProxyPixelTopology::localY(const float mpY) const
{
  return specificTopology().localY(mpY);
}

float ProxyPixelTopology::localY(const float mpY,
                 const Topology::LocalTrackPred &trkPred) const
{
  if (!this->surfaceDeformation()) return specificTopology().localY(mpY);

  // add correction from SurfaceDeformation
  float yOld = specificTopology().localY(mpY); // 'original position'
  const SurfaceDeformation::Local2DVector corr(this->positionCorrection(trkPred));
  
  return yOld + corr.y();
}



void ProxyPixelTopology::setSurfaceDeformation(const SurfaceDeformation * deformation)
{ 
  theSurfaceDeformation = deformation;
}

SurfaceDeformation::Local2DVector
ProxyPixelTopology::positionCorrection(const LocalPoint &pos,
                       const Topology::LocalTrackAngles &dir) const
{
  const SurfaceDeformation::Local2DPoint pos2D(pos.x(), pos.y());// change precision and dimension

  return this->surfaceDeformation()->positionCorrection(pos2D, dir,
                            theLength, theWidth);
}

SurfaceDeformation::Local2DVector
ProxyPixelTopology::positionCorrection(const Topology::LocalTrackPred &trk) const
{
  return this->surfaceDeformation()->positionCorrection(trk.point(), trk.angles(),
                            theLength, theWidth);
}