#include <PixelCPEGeneric.h>

Inheritance diagram for PixelCPEGeneric:

Classes
struct	ClusterParamGeneric

Public Member Functions
	PixelCPEGeneric (edm::ParameterSet const &conf, const MagneticField , const TrackerGeometry &, const SiPixelLorentzAngle , const SiPixelGenErrorDBObject , const SiPixelTemplateDBObject , const SiPixelLorentzAngle *)
	The constructor. More...

	~PixelCPEGeneric ()

Public Member Functions inherited from PixelCPEBase
ReturnType	getParameters (const SiPixelCluster &cl, const GeomDetUnit &det) const

ReturnType	getParameters (const SiPixelCluster &cl, const GeomDetUnit &det, const LocalTrajectoryParameters &ltp) const

	PixelCPEBase (edm::ParameterSet const &conf, const MagneticField mag, const TrackerGeometry &geom, const SiPixelLorentzAngle lorentzAngle, const SiPixelGenErrorDBObject genErrorDBObject, const SiPixelTemplateDBObject templateDBobject, const SiPixelLorentzAngle *lorentzAngleWidth, int flag=0)

Public Member Functions inherited from PixelClusterParameterEstimator
unsigned int	clusterProbComputationFlag () const

virtual ReturnType	getParameters (const SiPixelCluster &cl, const GeomDetUnit &det, const TrajectoryStateOnSurface &tsos) const

virtual VLocalValues	localParametersV (const SiPixelCluster &cluster, const GeomDetUnit &gd) const

virtual VLocalValues	localParametersV (const SiPixelCluster &cluster, const GeomDetUnit &gd, TrajectoryStateOnSurface &tsos) const

	PixelClusterParameterEstimator ()

virtual	~PixelClusterParameterEstimator ()

Private Member Functions
void	collect_edge_charges (ClusterParam &theClusterParam, float &Q_f_X, float &Q_l_X, float &Q_f_Y, float &Q_l_Y) const

ClusterParam *	createClusterParam (const SiPixelCluster &cl) const

float	err2X (bool &, int &) const

float	err2Y (bool &, int &) const

float	generic_position_formula (int size, float Q_f, float Q_l, float upper_edge_first_pix, float lower_edge_last_pix, float lorentz_shift, float theThickness, float cot_angle, float pitch, bool first_is_big, bool last_is_big, float eff_charge_cut_low, float eff_charge_cut_high, float size_cut) const

LocalError	localError (DetParam const &theDetParam, ClusterParam &theClusterParam) const

LocalPoint	localPosition (DetParam const &theDetParam, ClusterParam &theClusterParam) const

Private Attributes
bool	DoCosmics_

float	EdgeClusterErrorX_

float	EdgeClusterErrorY_

bool	inflate_all_errors_no_trk_angle

bool	inflate_errors

bool	IrradiationBiasCorrection_

bool	isUpgrade_

float	the_eff_charge_cut_highX

float	the_eff_charge_cut_highY

float	the_eff_charge_cut_lowX

float	the_eff_charge_cut_lowY

float	the_size_cutX

float	the_size_cutY

std::vector< SiPixelGenErrorStore >	thePixelGenError_

std::vector< SiPixelTemplateStore >	thePixelTemp_

bool	TruncatePixelCharge_

bool	UseErrorsFromTemplates_

std::vector< float >	xerr_barrel_l1_

float	xerr_barrel_l1_def_

std::vector< float >	xerr_barrel_ln_

float	xerr_barrel_ln_def_

std::vector< float >	xerr_endcap_

float	xerr_endcap_def_

std::vector< float >	yerr_barrel_l1_

float	yerr_barrel_l1_def_

std::vector< float >	yerr_barrel_ln_

float	yerr_barrel_ln_def_

std::vector< float >	yerr_endcap_

float	yerr_endcap_def_

Additional Inherited Members
Public Types inherited from PixelClusterParameterEstimator
typedef std::pair< LocalPoint, LocalError >	LocalValues

using	ReturnType = std::tuple< LocalPoint, LocalError, SiPixelRecHitQuality::QualWordType >

typedef std::vector< LocalValues >	VLocalValues

Protected Types inherited from PixelCPEBase
typedef GloballyPositioned < double >	Frame

Protected Attributes inherited from PixelCPEBase
bool	alpha2Order

bool	DoLorentz_

const SiPixelGenErrorDBObject *	genErrorDBObject_

const TrackerGeometry &	geom_

float	lAOffset_

float	lAWidthBPix_

float	lAWidthFPix_

bool	LoadTemplatesFromDB_

const SiPixelLorentzAngle *	lorentzAngle_

const SiPixelLorentzAngle *	lorentzAngleWidth_

const MagneticField *	magfield_

const SiPixelTemplateDBObject *	templateDBobject_

int	theFlag_

int	theVerboseLevel

bool	useLAOffsetFromConfig_

bool	useLAWidthFromConfig_

bool	useLAWidthFromDB_

Protected Attributes inherited from PixelClusterParameterEstimator
unsigned int	clusterProbComputationFlag_

Detailed Description

Definition at line 56 of file PixelCPEGeneric.h.

Constructor & Destructor Documentation

PixelCPEGeneric::PixelCPEGeneric	(	edm::ParameterSet const &	conf,
		const MagneticField *	mag,
		const TrackerGeometry &	geom,
		const SiPixelLorentzAngle *	lorentzAngle,
		const SiPixelGenErrorDBObject *	genErrorDBObject,
		const SiPixelTemplateDBObject *	templateDBobject,
		const SiPixelLorentzAngle *	lorentzAngleWidth = `0`
	)

The constructor.

Definition at line 40 of file PixelCPEGeneric.cc.

References gather_cfg::cout, DoCosmics_, EdgeClusterErrorX_, EdgeClusterErrorY_, edm::hlt::Exception, edm::ParameterSet::exists(), PixelCPEBase::genErrorDBObject_, edm::ParameterSet::getParameter(), inflate_all_errors_no_trk_angle, inflate_errors, IrradiationBiasCorrection_, isUpgrade_, PixelCPEBase::LoadTemplatesFromDB_, LogDebug, SiPixelGenError::pushfile(), SiPixelTemplate::pushfile(), PixelCPEBase::templateDBobject_, the_eff_charge_cut_highX, the_eff_charge_cut_highY, the_eff_charge_cut_lowX, the_eff_charge_cut_lowY, the_size_cutX, the_size_cutY, thePixelGenError_, thePixelTemp_, PixelCPEBase::theVerboseLevel, TruncatePixelCharge_, UseErrorsFromTemplates_, xerr_barrel_l1_, xerr_barrel_l1_def_, xerr_barrel_ln_, xerr_barrel_ln_def_, xerr_endcap_, xerr_endcap_def_, yerr_barrel_l1_, yerr_barrel_l1_def_, yerr_barrel_ln_, yerr_barrel_ln_def_, yerr_endcap_, and yerr_endcap_def_.

   : PixelCPEBase(conf, mag, geom, lorentzAngle, genErrorDBObject, templateDBobject,lorentzAngleWidth,0) {
 #endif
 
   if (theVerboseLevel > 0) 
     LogDebug("PixelCPEGeneric") 
       << " constructing a generic algorithm for ideal pixel detector.\n"
       << " CPEGeneric:: VerboseLevel = " << theVerboseLevel;
 
   // Externally settable cuts  
   the_eff_charge_cut_lowX = conf.getParameter<double>("eff_charge_cut_lowX");
   the_eff_charge_cut_lowY = conf.getParameter<double>("eff_charge_cut_lowY");
   the_eff_charge_cut_highX = conf.getParameter<double>("eff_charge_cut_highX");
   the_eff_charge_cut_highY = conf.getParameter<double>("eff_charge_cut_highY");
   the_size_cutX = conf.getParameter<double>("size_cutX");
   the_size_cutY = conf.getParameter<double>("size_cutY");
 
   EdgeClusterErrorX_ = conf.getParameter<double>("EdgeClusterErrorX");
   EdgeClusterErrorY_ = conf.getParameter<double>("EdgeClusterErrorY");
 
   // Externally settable flags to inflate errors
   inflate_errors = conf.getParameter<bool>("inflate_errors");
   inflate_all_errors_no_trk_angle = conf.getParameter<bool>("inflate_all_errors_no_trk_angle");
 
   UseErrorsFromTemplates_    = conf.getParameter<bool>("UseErrorsFromTemplates");
   TruncatePixelCharge_       = conf.getParameter<bool>("TruncatePixelCharge");
   IrradiationBiasCorrection_ = conf.getParameter<bool>("IrradiationBiasCorrection");
   DoCosmics_                 = conf.getParameter<bool>("DoCosmics");
   //LoadTemplatesFromDB_       = conf.getParameter<bool>("LoadTemplatesFromDB");
 
   bool isUpgrade=false;
   if ( conf.exists("Upgrade") && conf.getParameter<bool>("Upgrade")) {
     isUpgrade=true;
     xerr_barrel_ln_= {0.00114,0.00104,0.00214};
     xerr_barrel_ln_def_=0.00425;
     yerr_barrel_ln_= {0.00299,0.00203,0.0023,0.00237,0.00233,0.00243,0.00232,0.00259,0.00176};
     yerr_barrel_ln_def_=0.00245;
     xerr_endcap_= {0.00151,0.000813,0.00221};
     xerr_endcap_def_=0.00218;
     yerr_endcap_= {0.00261,0.00107,0.00264};
     yerr_endcap_def_=0.00357;
     
     if ( conf.exists("SmallPitch") && conf.getParameter<bool>("SmallPitch")) {
       xerr_barrel_l1_= {0.00104, 0.000691, 0.00122};
       xerr_barrel_l1_def_=0.00321;
       yerr_barrel_l1_= {0.00199,0.00136,0.0015,0.00153,0.00152,0.00171,0.00154,0.00157,0.00154};
       yerr_barrel_l1_def_=0.00164;
     }
     else{
       xerr_barrel_l1_= {0.00114,0.00104,0.00214};
       xerr_barrel_l1_def_=0.00425;
       yerr_barrel_l1_= {0.00299,0.00203,0.0023,0.00237,0.00233,0.00243,0.00232,0.00259,0.00176};
       yerr_barrel_l1_def_=0.00245;
     }
   }
   isUpgrade_=isUpgrade;
 
   // Select the position error source 
   // For upgrde and cosmics force the use simple errors 
   if( isUpgrade_ || (DoCosmics_) ) UseErrorsFromTemplates_ = false;
 
   if ( !UseErrorsFromTemplates_ && ( TruncatePixelCharge_       || 
                      IrradiationBiasCorrection_ || 
                      DoCosmics_                 ||
                      LoadTemplatesFromDB_ ) )  {
     throw cms::Exception("PixelCPEGeneric::PixelCPEGeneric: ") 
       << "\nERROR: UseErrorsFromTemplates_ is set to False in PixelCPEGeneric_cfi.py. "
       << " In this case it does not make sense to set any of the following to True: " 
       << " TruncatePixelCharge_, IrradiationBiasCorrection_, DoCosmics_, LoadTemplatesFromDB_ !!!" 
       << "\n\n";
   }
 
   // Use errors from templates or from GenError
   if ( UseErrorsFromTemplates_ ) {
 
 #ifdef NEW_CPEERROR
 
       if ( LoadTemplatesFromDB_ )  {  // From DB
     if ( !SiPixelGenError::pushfile( *genErrorDBObject_, thePixelGenError_) )
           throw cms::Exception("InvalidCalibrationLoaded") 
             << "ERROR: GenErrors not filled correctly. Check the sqlite file. Using SiPixelTemplateDBObject version " 
             << ( *genErrorDBObject_ ).version();
     if(MYDEBUG) cout<<"Loaded genErrorDBObject v"<<( *genErrorDBObject_ ).version()<<endl;
       } else  { // From file      
         if ( !SiPixelGenError::pushfile( -999, thePixelGenError_ ) )
           throw cms::Exception("InvalidCalibrationLoaded") 
             << "ERROR: GenErrors not loaded correctly from text file. Reconstruction will fail.";
       } // if load from DB
 
 #else 
 
       if ( LoadTemplatesFromDB_ ) {
     // Initialize template store to the selected ID [Morris, 6/25/08]  
     if ( !SiPixelTemplate::pushfile( *templateDBobject_, thePixelTemp_) )
       throw cms::Exception("InvalidCalibrationLoaded") 
         << "ERROR: Templates not filled correctly. Check the sqlite file. Using SiPixelTemplateDBObject version " 
         << ( *templateDBobject_ ).version();
     if(MYDEBUG) cout<<"Loaded templateDBobject "<<( *templateDBobject_ ).version()<<endl;
 
       } else {
     if ( !SiPixelTemplate::pushfile( -999, thePixelTemp_ ) )
       throw cms::Exception("InvalidCalibrationLoaded") 
         << "ERROR: Templates not loaded correctly from text file. Reconstruction will fail.";
       } // if load from DB
 
 #endif // NEW_CPEERROR
 
   } // if ( UseErrorsFromTemplates_ )
   
   if(MYDEBUG) {
     cout << "From PixelCPEGeneric::PixelCPEGeneric(...)" << endl;
     cout << "(int)UseErrorsFromTemplates_ = " << (int)UseErrorsFromTemplates_    << endl;
     cout << "TruncatePixelCharge_         = " << (int)TruncatePixelCharge_       << endl;      
     cout << "IrradiationBiasCorrection_   = " << (int)IrradiationBiasCorrection_ << endl;
     cout << "(int)DoCosmics_              = " << (int)DoCosmics_                 << endl;
     cout << "(int)LoadTemplatesFromDB_    = " << (int)LoadTemplatesFromDB_       << endl;
   }
 
 
   // Default case for rechit errors in case other, more correct, errors are not vailable
   // This are constants. Maybe there is a more efficienct way to store them.
   xerr_barrel_l1_= {0.00115, 0.00120, 0.00088};
   xerr_barrel_l1_def_=0.01030;
   yerr_barrel_l1_= {0.00375,0.00230,0.00250,0.00250,0.00230,0.00230,0.00210,0.00210,0.00240};
   yerr_barrel_l1_def_=0.00210;
   xerr_barrel_ln_= {0.00115, 0.00120, 0.00088};
   xerr_barrel_ln_def_=0.01030;
   yerr_barrel_ln_= {0.00375,0.00230,0.00250,0.00250,0.00230,0.00230,0.00210,0.00210,0.00240};
   yerr_barrel_ln_def_=0.00210;
   xerr_endcap_= {0.0020, 0.0020};
   xerr_endcap_def_=0.0020;
   yerr_endcap_= {0.00210};
   yerr_endcap_def_=0.00075;
 
 }

PixelCPEGeneric::~PixelCPEGeneric ( )

inline

Definition at line 95 of file PixelCPEGeneric.h.

95 {;}

Member Function Documentation

void PixelCPEGeneric::collect_edge_charges	(	ClusterParam &	theClusterParamBase,
		float &	Q_f_X,
		float &	Q_l_X,
		float &	Q_f_Y,
		float &	Q_l_Y
	)		const

private

Collect the edge charges in x and y, in a single pass over the pixel vector. Calculate charge in the first and last pixel projected in x and y and the inner cluster charge, projected in x and y.

Parameters

theClusterParamBase	input, the cluster
Q_f_X	output, Q first in X
Q_l_X	output, Q last in X
Q_f_Y	output, Q first in Y
Q_l_Y	output, Q last in Y

Definition at line 565 of file PixelCPEGeneric.cc.

References SiPixelCluster::Pixel::adc, i, SiPixelCluster::maxPixelCol(), SiPixelCluster::maxPixelRow(), bookConverter::min, SiPixelCluster::minPixelCol(), SiPixelCluster::minPixelRow(), SiPixelCluster::pixel(), PixelCPEGeneric::ClusterParamGeneric::pixmx, SiPixelCluster::size(), PixelCPEBase::ClusterParam::theCluster, TruncatePixelCharge_, UseErrorsFromTemplates_, SiStripMonitorClusterAlca_cfi::xmax, SiStripMonitorClusterAlca_cfi::xmin, SiStripMonitorClusterAlca_cfi::ymax, and SiStripMonitorClusterAlca_cfi::ymin.

Referenced by localPosition().

 {
   ClusterParamGeneric & theClusterParam = static_cast<ClusterParamGeneric &>(theClusterParamBase);
 
   // Initialize return variables.
   Q_f_X = Q_l_X = 0.0;
   Q_f_Y = Q_l_Y = 0.0;
 
 
   // Obtain boundaries in index units
   int xmin = theClusterParam.theCluster->minPixelRow();
   int xmax = theClusterParam.theCluster->maxPixelRow();
   int ymin = theClusterParam.theCluster->minPixelCol();
   int ymax = theClusterParam.theCluster->maxPixelCol();
 
 
   // Iterate over the pixels.
   int isize = theClusterParam.theCluster->size();
   for (int i = 0;  i != isize; ++i) 
     {
       auto const & pixel = theClusterParam.theCluster->pixel(i); 
       // ggiurgiu@fnal.gov: add pixel charge truncation
       float pix_adc = pixel.adc;
       if ( UseErrorsFromTemplates_ && TruncatePixelCharge_ ) 
     pix_adc = std::min(pix_adc, theClusterParam.pixmx );
 
       //
       // X projection
       if ( pixel.x == xmin ) Q_f_X += pix_adc;
       if ( pixel.x == xmax ) Q_l_X += pix_adc;
       //
       // Y projection
       if ( pixel.y == ymin ) Q_f_Y += pix_adc;
       if ( pixel.y == ymax ) Q_l_Y += pix_adc;
     }
   
   return;
 } 

PixelCPEBase::ClusterParam * PixelCPEGeneric::createClusterParam ( const SiPixelCluster & cl ) const

privatevirtual

Implements PixelCPEBase.

Definition at line 182 of file PixelCPEGeneric.cc.

 {
    return new ClusterParamGeneric(cl);
 }

float PixelCPEGeneric::err2X	(	bool &	,
		int &
	)		const

private

float PixelCPEGeneric::err2Y	(	bool &	,
		int &
	)		const

private

float PixelCPEGeneric::generic_position_formula	(	int	size,
		float	Q_f,
		float	Q_l,
		float	upper_edge_first_pix,
		float	lower_edge_last_pix,
		float	lorentz_shift,
		float	theThickness,
		float	cot_angle,
		float	pitch,
		bool	first_is_big,
		bool	last_is_big,
		float	eff_charge_cut_low,
		float	eff_charge_cut_high,
		float	size_cut
	)		const

private

A generic version of the position formula. Since it works for both X and Y, in the interest of the simplicity of the code, all parameters are passed by the caller. The only class variable used by this method is the theThickness, since that's common for both X and Y.

Parameters

size	Size of this projection.
Q_f	Charge in the first pixel.
Q_l	Charge in the last pixel.
upper_edge_first_pix	As the name says.
lower_edge_last_pix	As the name says.
lorentz_shift	L-width
cot_angle	cot of alpha_ or beta_
pitch	thePitchX or thePitchY
first_is_big	true if the first is big
last_is_big	true if the last is big
eff_charge_cut_low	Use edge if > W_eff (in pix) &&&
eff_charge_cut_high	Use edge if < W_eff (in pix) &&&
size_cut	Use edge when size == cuts

Definition at line 447 of file PixelCPEGeneric.cc.

References funct::abs(), gather_cfg::cout, GeomDetEnumerators::PixelBarrel, and PixelCPEBase::theVerboseLevel.

Referenced by localPosition().

 {
 
   //cout<<" in PixelCPEGeneric:generic_position_formula - "<<endl; //dk
 
   float geom_center = 0.5f * ( upper_edge_first_pix + lower_edge_last_pix );
 
   //--- The case of only one pixel in this projection is separate.  Note that
   //--- here first_pix == last_pix, so the average of the two is still the
   //--- center of the pixel.
   if ( size == 1 ) {return geom_center;}
 
   //--- Width of the clusters minus the edge (first and last) pixels.
   //--- In the note, they are denoted x_F and x_L (and y_F and y_L)
   float W_inner      = lower_edge_last_pix - upper_edge_first_pix;  // in cm
 
   //--- Predicted charge width from geometry
   float W_pred = theThickness * cot_angle                     // geometric correction (in cm)
     - lorentz_shift;                    // (in cm) &&& check fpix!  
 
   //cout<<" in PixelCPEGeneric:generic_position_formula - "<<W_inner<<" "<<W_pred<<endl; //dk
 
   //--- Total length of the two edge pixels (first+last)
   float sum_of_edge = 2.0f;
   if (first_is_big) sum_of_edge += 1.0f;
   if (last_is_big)  sum_of_edge += 1.0f;
   
 
   //--- The `effective' charge width -- particle's path in first and last pixels only
   float W_eff = std::abs( W_pred ) - W_inner;
 
 
   //--- If the observed charge width is inconsistent with the expectations
   //--- based on the track, do *not* use W_pred-W_innner.  Instead, replace
   //--- it with an *average* effective charge width, which is the average
   //--- length of the edge pixels.
   //
   //  bool usedEdgeAlgo = false;
   if ( (size >= size_cut) || (
        ( W_eff/pitch < eff_charge_cut_low ) |
        ( W_eff/pitch > eff_charge_cut_high ) ) ) 
     {
       W_eff = pitch * 0.5f * sum_of_edge;  // ave. length of edge pixels (first+last) (cm)
       //  usedEdgeAlgo = true;
 #ifdef EDM_ML_DEBUG
       nRecHitsUsedEdge_++;
 #endif
     }
 
   
   //--- Finally, compute the position in this projection
   float Qdiff = Q_l - Q_f;
   float Qsum  = Q_l + Q_f;
 
   //--- Temporary fix for clusters with both first and last pixel with charge = 0
   if(Qsum==0) Qsum=1.0f;
   //float hit_pos = geom_center + 0.5f*(Qdiff/Qsum) * W_eff + half_lorentz_shift;
   float hit_pos = geom_center + 0.5f*(Qdiff/Qsum) * W_eff;
 
   //cout<<" in PixelCPEGeneric:generic_position_formula - "<<hit_pos<<" "<<lorentz_shift*0.5<<endl; //dk
 
  #ifdef EDM_ML_DEBUG
   //--- Debugging output
   if (theVerboseLevel > 20) {
     if ( theDetParam.thePart == GeomDetEnumerators::PixelBarrel ) {
       cout << "\t >>> We are in the Barrel." ;
     } else {
       cout << "\t >>> We are in the Forward." ;
     }
     cout 
       << "\n\t >>> cot(angle) = " << cot_angle << "  pitch = " << pitch << "  size = " << size
       << "\n\t >>> upper_edge_first_pix = " << upper_edge_first_pix
       << "\n\t >>> lower_edge_last_pix  = " << lower_edge_last_pix
       << "\n\t >>> geom_center          = " << geom_center
       << "\n\t >>> half_lorentz_shift   = " << half_lorentz_shift
       << "\n\t >>> W_inner              = " << W_inner
       << "\n\t >>> W_pred               = " << W_pred
       << "\n\t >>> W_eff(orig)          = " << fabs( W_pred ) - W_inner
       << "\n\t >>> W_eff(used)          = " << W_eff
       << "\n\t >>> sum_of_edge          = " << sum_of_edge
       << "\n\t >>> Qdiff = " << Qdiff << "  Qsum = " << Qsum 
       << "\n\t >>> hit_pos              = " << hit_pos 
       << "\n\t >>> RecHits: total = " << nRecHitsTotal_ 
       << "  used edge = " << nRecHitsUsedEdge_
       << endl;
     if (usedEdgeAlgo) 
       cout << "\n\t >>> Used Edge algorithm." ;
     else
       cout << "\n\t >>> Used angle information." ;
     cout << endl;
   }
 #endif
 
   return hit_pos;
 }

LocalError PixelCPEGeneric::localError	(	DetParam const &	theDetParam,
		ClusterParam &	theClusterParam
	)		const

privatevirtual

Implements PixelCPEBase.

Definition at line 616 of file PixelCPEGeneric.cc.

References gather_cfg::cout, EdgeClusterErrorX_, EdgeClusterErrorY_, edm::hlt::Exception, f, GeomDet::geographicalId(), inflate_errors, PXBDetId::layer(), likely, SiPixelCluster::maxPixelCol(), SiPixelCluster::maxPixelRow(), SiPixelCluster::minPixelCol(), SiPixelCluster::minPixelRow(), GeomDetEnumerators::PixelBarrel, PixelCPEBase::ClusterParam::qBin_, PixelCPEGeneric::ClusterParamGeneric::sigmax, PixelCPEGeneric::ClusterParamGeneric::sigmay, SiPixelCluster::sizeX(), SiPixelCluster::sizeY(), mathSSE::sqrt(), PixelCPEGeneric::ClusterParamGeneric::sx1, PixelCPEGeneric::ClusterParamGeneric::sx2, PixelCPEGeneric::ClusterParamGeneric::sy1, PixelCPEGeneric::ClusterParamGeneric::sy2, PixelCPEBase::ClusterParam::theCluster, PixelCPEBase::DetParam::theDet, PixelCPEBase::DetParam::thePart, PixelCPEBase::DetParam::thePitchX, PixelCPEBase::DetParam::thePitchY, PixelCPEBase::DetParam::theRecTopol, UseErrorsFromTemplates_, xerr_barrel_l1_, xerr_barrel_l1_def_, xerr_barrel_ln_, xerr_barrel_ln_def_, xerr_endcap_, xerr_endcap_def_, yerr_barrel_l1_, yerr_barrel_l1_def_, yerr_barrel_ln_, yerr_barrel_ln_def_, yerr_endcap_, and yerr_endcap_def_.

 {
 
   ClusterParamGeneric & theClusterParam = static_cast<ClusterParamGeneric &>(theClusterParamBase);
 
   const bool localPrint = false;
   // Default errors are the maximum error used for edge clusters.
   // These are determined by looking at residuals for edge clusters
   float xerr = EdgeClusterErrorX_ * micronsToCm;
   float yerr = EdgeClusterErrorY_ * micronsToCm;
   
 
   // Find if cluster is at the module edge. 
   int maxPixelCol = theClusterParam.theCluster->maxPixelCol();
   int maxPixelRow = theClusterParam.theCluster->maxPixelRow();
   int minPixelCol = theClusterParam.theCluster->minPixelCol();
   int minPixelRow = theClusterParam.theCluster->minPixelRow();       
 
   bool edgex = ( theDetParam.theRecTopol->isItEdgePixelInX( minPixelRow ) ) || ( theDetParam.theRecTopol->isItEdgePixelInX( maxPixelRow ) );
   bool edgey = ( theDetParam.theRecTopol->isItEdgePixelInY( minPixelCol ) ) || ( theDetParam.theRecTopol->isItEdgePixelInY( maxPixelCol ) );
 
   unsigned int sizex = theClusterParam.theCluster->sizeX();
   unsigned int sizey = theClusterParam.theCluster->sizeY();
   if(MYDEBUG) {
     if( int(sizex) != (maxPixelRow - minPixelRow+1) ) cout<<" wrong x"<<endl;
     if( int(sizey) != (maxPixelCol - minPixelCol+1) ) cout<<" wrong y"<<endl;
   }
 
   // Find if cluster contains double (big) pixels. 
   bool bigInX = theDetParam.theRecTopol->containsBigPixelInX( minPixelRow, maxPixelRow );    
   bool bigInY = theDetParam.theRecTopol->containsBigPixelInY( minPixelCol, maxPixelCol );
 
   if(localPrint) {
    cout<<" endge clus "<<xerr<<" "<<yerr<<endl;  //dk
    if(bigInX || bigInY) cout<<" big "<<bigInX<<" "<<bigInY<<endl;
    if(edgex || edgey) cout<<" edge "<<edgex<<" "<<edgey<<endl;
    cout<<" before if "<<UseErrorsFromTemplates_<<" "<<theClusterParam.qBin_<<endl;
    if(theClusterParam.qBin_ == 0) 
      cout<<" qbin 0! "<<edgex<<" "<<edgey<<" "<<bigInX<<" "<<bigInY<<" "
     <<sizex<<" "<<sizey<<endl;
   }
 
   //if likely(UseErrorsFromTemplates_ && (qBin_!= 0) ) {
   if likely(UseErrorsFromTemplates_ ) {
       //
       // Use template errors 
       //cout << "Track angles are known. We can use either errors from templates or the error parameterization from DB." << endl;
       
 
       if ( !edgex ) { // Only use this for non-edge clusters
     if ( sizex == 1 ) {
       if ( !bigInX ) {xerr = theClusterParam.sx1;} 
       else           {xerr = theClusterParam.sx2;}
     } else {xerr = theClusterParam.sigmax;}       
       }
           
       if ( !edgey ) { // Only use for non-edge clusters
     if ( sizey == 1 ) {
       if ( !bigInY ) {yerr = theClusterParam.sy1;}
       else           {yerr = theClusterParam.sy2;}
     } else {yerr = theClusterParam.sigmay;}       
       }
 
       if(localPrint) {
     cout<<" in if "<<edgex<<" "<<edgey<<" "<<sizex<<" "<<sizey<<endl;
     cout<<" errors  "<<xerr<<" "<<yerr<<" "<<theClusterParam.sx1<<" "<<theClusterParam.sx2<<" "<<theClusterParam.sigmax<<endl;  //dk
       }
 
   } else  { // simple errors
 
     // This are the simple errors, hardcoded in the code 
     cout << "Track angles are not known and we are processing cosmics." << endl; 
     //cout << "Default angle estimation which assumes track from PV (0,0,0) does not work." << endl;
       
     if ( theDetParam.thePart == GeomDetEnumerators::PixelBarrel )  {
 
       DetId id = (theDetParam.theDet->geographicalId());
       int layer=PXBDetId(id).layer();
       if ( layer==1 ) {
     if ( !edgex ) {
       if ( sizex<=xerr_barrel_l1_.size() ) xerr=xerr_barrel_l1_[sizex-1];
       else xerr=xerr_barrel_l1_def_;
     }
     
     if ( !edgey ) {
       if ( sizey<=yerr_barrel_l1_.size() ) yerr=yerr_barrel_l1_[sizey-1];
       else yerr=yerr_barrel_l1_def_;
     }
       } else{  // layer 2,3
     if ( !edgex ) {
       if ( sizex<=xerr_barrel_ln_.size() ) xerr=xerr_barrel_ln_[sizex-1];
       else xerr=xerr_barrel_ln_def_;
     }
         
     if ( !edgey ) {
       if ( sizey<=yerr_barrel_ln_.size() ) yerr=yerr_barrel_ln_[sizey-1];
       else yerr=yerr_barrel_ln_def_;
     }
       }
 
     } else { // EndCap
 
       if ( !edgex ) {
     if ( sizex<=xerr_endcap_.size() ) xerr=xerr_endcap_[sizex-1];
     else xerr=xerr_endcap_def_;
       }
       
       if ( !edgey ) {
     if ( sizey<=yerr_endcap_.size() ) yerr=yerr_endcap_[sizey-1];
     else yerr=yerr_endcap_def_;
       }
     } // end endcap
 
     if(inflate_errors) {
       int n_bigx = 0;
       int n_bigy = 0;
       
       for (int irow = 0; irow < 7; ++irow) {
     if ( theDetParam.theRecTopol->isItBigPixelInX( irow+minPixelRow ) ) ++n_bigx;
       }
       
       for (int icol = 0; icol < 21; ++icol) {
       if ( theDetParam.theRecTopol->isItBigPixelInY( icol+minPixelCol ) ) ++n_bigy;
       }
       
       xerr = (float)(sizex + n_bigx) * theDetParam.thePitchX / std::sqrt( 12.0f );
       yerr = (float)(sizey + n_bigy) * theDetParam.thePitchY / std::sqrt( 12.0f );
       
     } // if(inflate_errors)
 
   } // end 
 
 #ifdef EDM_ML_DEBUG
   if ( !(xerr > 0.0) )
     throw cms::Exception("PixelCPEGeneric::localError") 
       << "\nERROR: Negative pixel error xerr = " << xerr << "\n\n";
   
   if ( !(yerr > 0.0) )
     throw cms::Exception("PixelCPEGeneric::localError") 
       << "\nERROR: Negative pixel error yerr = " << yerr << "\n\n";
 #endif
  
   //if(localPrint) {
   //cout<<" errors  "<<xerr<<" "<<yerr<<endl;  //dk
   //if(theClusterParam.qBin_ == 0) cout<<" qbin 0 "<<xerr<<" "<<yerr<<endl;
   //}
 
   auto xerr_sq = xerr*xerr; 
   auto yerr_sq = yerr*yerr;
   
   return LocalError( xerr_sq, 0, yerr_sq );
 
 }

LocalPoint PixelCPEGeneric::localPosition	(	DetParam const &	theDetParam,
		ClusterParam &	theClusterParamBase
	)		const

privatevirtual

Hit position in the local frame (in cm). Unlike other CPE's, this one converts everything from the measurement frame (in channel numbers) into the local frame (in centimeters).

< Q of the first pixel in X

< Q of the last pixel in X

< Q of the first pixel in Y

< Q of the last pixel in Y

Implements PixelCPEBase.

Definition at line 195 of file PixelCPEGeneric.cc.

 {
 
   ClusterParamGeneric & theClusterParam = static_cast<ClusterParamGeneric &>(theClusterParamBase);
 
   //cout<<" in PixelCPEGeneric:localPosition - "<<endl; //dk
 
   float chargeWidthX = (theDetParam.lorentzShiftInCmX * theDetParam.widthLAFractionX);
   float chargeWidthY = (theDetParam.lorentzShiftInCmY * theDetParam.widthLAFractionY);
   float shiftX = 0.5f*theDetParam.lorentzShiftInCmX;
   float shiftY = 0.5f*theDetParam.lorentzShiftInCmY;
 
   //cout<<" main la width "<<chargeWidthX<<" "<<chargeWidthY<<endl;
 
   if ( UseErrorsFromTemplates_ ) {
 
       float qclus = theClusterParam.theCluster->charge();     
       float locBz = theDetParam.bz;
       //cout << "PixelCPEGeneric::localPosition(...) : locBz = " << locBz << endl;
       
       theClusterParam.pixmx  = -999.9; // max pixel charge for truncation of 2-D cluster
       theClusterParam.sigmay = -999.9; // CPE Generic y-error for multi-pixel cluster
       theClusterParam.deltay = -999.9; // CPE Generic y-bias for multi-pixel cluster
       theClusterParam.sigmax = -999.9; // CPE Generic x-error for multi-pixel cluster
       theClusterParam.deltax = -999.9; // CPE Generic x-bias for multi-pixel cluster
       theClusterParam.sy1    = -999.9; // CPE Generic y-error for single single-pixel
       theClusterParam.dy1    = -999.9; // CPE Generic y-bias for single single-pixel cluster
       theClusterParam.sy2    = -999.9; // CPE Generic y-error for single double-pixel cluster
       theClusterParam.dy2    = -999.9; // CPE Generic y-bias for single double-pixel cluster
       theClusterParam.sx1    = -999.9; // CPE Generic x-error for single single-pixel cluster
       theClusterParam.dx1    = -999.9; // CPE Generic x-bias for single single-pixel cluster
       theClusterParam.sx2    = -999.9; // CPE Generic x-error for single double-pixel cluster
       theClusterParam.dx2    = -999.9; // CPE Generic x-bias for single double-pixel cluster
   
 
 #ifdef NEW_CPEERROR
 
       SiPixelGenError gtempl(thePixelGenError_);
       int gtemplID_ = theDetParam.detTemplateId;
 
       //int gtemplID0 = genErrorDBObject_->getGenErrorID(theDetParam.theDet->geographicalId().rawId());
       //if(gtemplID0!=gtemplID_) cout<<" different id "<< gtemplID_<<" "<<gtemplID0<<endl;
 
       theClusterParam.qBin_ = gtempl.qbin( gtemplID_, theClusterParam.cotalpha, theClusterParam.cotbeta, locBz, qclus,  
                        theClusterParam.pixmx, theClusterParam.sigmay, theClusterParam.deltay, 
                        theClusterParam.sigmax, theClusterParam.deltax, theClusterParam.sy1, 
                        theClusterParam.dy1, theClusterParam.sy2, theClusterParam.dy2, theClusterParam.sx1, 
                        theClusterParam.dx1, theClusterParam.sx2, theClusterParam.dx2 );  
       
       // now use the charge widths stored in the new generic template headers (change to the
       // incorrect sign convention of the base class)       
       bool useLAWidthFromGenError = false;
       if(useLAWidthFromGenError) {
     chargeWidthX = (-micronsToCm*gtempl.lorxwidth());
     chargeWidthY = (-micronsToCm*gtempl.lorywidth());
     if(MYDEBUG) cout<< " redefine la width (gen-error) "<< chargeWidthX<<" "<< chargeWidthY <<endl;
       }
       if(MYDEBUG) cout<<" GenError: "<<gtemplID_<<endl;
       
 #else // select templates
 
       SiPixelTemplate templ(thePixelTemp_);
       int templID_ = theDetParam.detTemplateId;
       
       theClusterParam.qBin_ = templ.qbin( templID_, theClusterParam.cotalpha, theClusterParam.cotbeta, locBz, qclus,  // inputs
                       theClusterParam.pixmx,                                       // returned by reference
                       theClusterParam.sigmay, theClusterParam.deltay, theClusterParam.sigmax, theClusterParam.deltax,              // returned by reference
                       theClusterParam.sy1, theClusterParam.dy1, theClusterParam.sy2, theClusterParam.dy2, theClusterParam.sx1, theClusterParam.dx1, theClusterParam.sx2, theClusterParam.dx2 );    // returned by reference
       
       //if(MYDEBUG) {
       //cout<<" errors "<<templID_<<" "<<theClusterParam.qBin_<<" "<<theClusterParam.sigmax<<" "<<theClusterParam.sigmay<<endl;
       //int templID0 = templateDBobject_->getTemplateID(theDetParam.theDet->geographicalId().rawId());
       //if(templID0!=templID_) cout<<" different id"<< templID_<<" "<<templID0<<endl;
       //}
 
 #endif // NEW_CPEERROR
 
       // These numbers come in microns from the qbin(...) call. Transform them to cm.
       theClusterParam.deltax = theClusterParam.deltax * micronsToCm;
       theClusterParam.dx1 = theClusterParam.dx1 * micronsToCm;
       theClusterParam.dx2 = theClusterParam.dx2 * micronsToCm;
       
       theClusterParam.deltay = theClusterParam.deltay * micronsToCm;
       theClusterParam.dy1 = theClusterParam.dy1 * micronsToCm;
       theClusterParam.dy2 = theClusterParam.dy2 * micronsToCm;
       
       theClusterParam.sigmax = theClusterParam.sigmax * micronsToCm;
       theClusterParam.sx1 = theClusterParam.sx1 * micronsToCm;
       theClusterParam.sx2 = theClusterParam.sx2 * micronsToCm;
       
       theClusterParam.sigmay = theClusterParam.sigmay * micronsToCm;
       theClusterParam.sy1 = theClusterParam.sy1 * micronsToCm;
       theClusterParam.sy2 = theClusterParam.sy2 * micronsToCm;
       
   } // if ( UseErrorsFromTemplates_ )
   
   float Q_f_X = 0.0;        
   float Q_l_X = 0.0;        
   float Q_f_Y = 0.0;        
   float Q_l_Y = 0.0;        
   collect_edge_charges( theClusterParam, 
             Q_f_X, Q_l_X, 
             Q_f_Y, Q_l_Y );
 
   //--- Find the inner widths along X and Y in one shot.  We
   //--- compute the upper right corner of the inner pixels
   //--- (== lower left corner of upper right pixel) and
   //--- the lower left corner of the inner pixels
   //--- (== upper right corner of lower left pixel), and then
   //--- subtract these two points in the formula.
 
   //--- Upper Right corner of Lower Left pixel -- in measurement frame
   MeasurementPoint meas_URcorn_LLpix( theClusterParam.theCluster->minPixelRow()+1.0,
                       theClusterParam.theCluster->minPixelCol()+1.0 );
 
   //--- Lower Left corner of Upper Right pixel -- in measurement frame
   MeasurementPoint meas_LLcorn_URpix( theClusterParam.theCluster->maxPixelRow(),
                       theClusterParam.theCluster->maxPixelCol() );
 
   //--- These two now converted into the local  
   LocalPoint local_URcorn_LLpix;
   LocalPoint local_LLcorn_URpix;
 
   // PixelCPEGeneric can be used with or without track angles
   // If PixelCPEGeneric is called with track angles, use them to correct for bows/kinks:
   if ( theClusterParam.with_track_angle ) {
     local_URcorn_LLpix = theDetParam.theTopol->localPosition(meas_URcorn_LLpix, theClusterParam.loc_trk_pred);
     local_LLcorn_URpix = theDetParam.theTopol->localPosition(meas_LLcorn_URpix, theClusterParam.loc_trk_pred);
   } else {
     local_URcorn_LLpix = theDetParam.theTopol->localPosition(meas_URcorn_LLpix);
     local_LLcorn_URpix = theDetParam.theTopol->localPosition(meas_LLcorn_URpix);
   }
 
  #ifdef EDM_ML_DEBUG
   if (theVerboseLevel > 20) {
     cout  
       << "\n\t >>> theClusterParam.theCluster->x = " << theClusterParam.theCluster->x()
       << "\n\t >>> theClusterParam.theCluster->y = " << theClusterParam.theCluster->y()
       << "\n\t >>> cluster: minRow = " << theClusterParam.theCluster->minPixelRow()
       << "  minCol = " << theClusterParam.theCluster->minPixelCol()
       << "\n\t >>> cluster: maxRow = " << theClusterParam.theCluster->maxPixelRow()
       << "  maxCol = " << theClusterParam.theCluster->maxPixelCol()
       << "\n\t >>> meas: inner lower left  = " << meas_URcorn_LLpix.x() 
       << "," << meas_URcorn_LLpix.y()
       << "\n\t >>> meas: inner upper right = " << meas_LLcorn_URpix.x() 
       << "," << meas_LLcorn_URpix.y() 
       << endl;
   }
 #endif
 
   //--- &&& Note that the cuts below should not be hardcoded (like in Orca and
   //--- &&& CPEFromDetPosition/PixelCPEInitial), but rather be
   //--- &&& externally settable (but tracked) parameters.  
 
   //--- Position, including the half lorentz shift
 
  #ifdef EDM_ML_DEBUG
   if (theVerboseLevel > 20) 
     cout << "\t >>> Generic:: processing X" << endl;
 #endif
 
   float xPos = 
     generic_position_formula( theClusterParam.theCluster->sizeX(),
                   Q_f_X, Q_l_X, 
                   local_URcorn_LLpix.x(), local_LLcorn_URpix.x(),
                   chargeWidthX,   // lorentz shift in cm
                   theDetParam.theThickness,
                   theClusterParam.cotalpha,
                   theDetParam.thePitchX,
                   theDetParam.theRecTopol->isItBigPixelInX( theClusterParam.theCluster->minPixelRow() ),
                   theDetParam.theRecTopol->isItBigPixelInX( theClusterParam.theCluster->maxPixelRow() ),
                   the_eff_charge_cut_lowX,
                               the_eff_charge_cut_highX,
                               the_size_cutX);           // cut for eff charge width &&&
 
 
   // apply the lorentz offset correction                 
   xPos = xPos + shiftX;
 
 #ifdef EDM_ML_DEBUG
   if (theVerboseLevel > 20) 
     cout << "\t >>> Generic:: processing Y" << endl;
 #endif
 
   float yPos = 
     generic_position_formula( theClusterParam.theCluster->sizeY(),
                   Q_f_Y, Q_l_Y, 
                   local_URcorn_LLpix.y(), local_LLcorn_URpix.y(),
                   chargeWidthY,   // lorentz shift in cm
                   theDetParam.theThickness,
                   theClusterParam.cotbeta,
                   theDetParam.thePitchY,  
                   theDetParam.theRecTopol->isItBigPixelInY( theClusterParam.theCluster->minPixelCol() ),
                   theDetParam.theRecTopol->isItBigPixelInY( theClusterParam.theCluster->maxPixelCol() ),
                   the_eff_charge_cut_lowY,
                               the_eff_charge_cut_highY,
                               the_size_cutY);           // cut for eff charge width &&&
 
   // apply the lorentz offset correction                 
   yPos = yPos + shiftY;
 
   // Apply irradiation corrections. NOT USED FOR NOW
   if ( IrradiationBiasCorrection_ ) {
     if ( theClusterParam.theCluster->sizeX() == 1 ) {  // size=1      
       // ggiurgiu@jhu.edu, 02/03/09 : for size = 1, the Lorentz shift is already accounted by the irradiation correction
       //float tmp1 =  (0.5 * theDetParam.lorentzShiftInCmX);
       //cout << "Apply correction correction_dx1 = " << theClusterParam.dx1 << " to xPos = " << xPos;
       xPos = xPos - (0.5 * theDetParam.lorentzShiftInCmX);
       // Find if pixel is double (big). 
       bool bigInX = theDetParam.theRecTopol->isItBigPixelInX( theClusterParam.theCluster->maxPixelRow() );    
       if ( !bigInX ) xPos -= theClusterParam.dx1;      
       else           xPos -= theClusterParam.dx2;
       //cout<<" to "<<xPos<<" "<<(tmp1+theClusterParam.dx1)<<endl;
     } else { // size>1
       //cout << "Apply correction correction_deltax = " << theClusterParam.deltax << " to xPos = " << xPos;
       xPos -= theClusterParam.deltax;
       //cout<<" to "<<xPos<<endl;
     }
     
     if ( theClusterParam.theCluster->sizeY() == 1 ) {
       // ggiurgiu@jhu.edu, 02/03/09 : for size = 1, the Lorentz shift is already accounted by the irradiation correction
       yPos = yPos - (0.5 * theDetParam.lorentzShiftInCmY);
       
       // Find if pixel is double (big). 
       bool bigInY = theDetParam.theRecTopol->isItBigPixelInY( theClusterParam.theCluster->maxPixelCol() );      
       if ( !bigInY ) yPos -= theClusterParam.dy1;
       else           yPos -= theClusterParam.dy2;
       
     } else { 
       //cout << "Apply correction correction_deltay = " << theClusterParam.deltay << " to yPos = " << yPos << endl;
       yPos -= theClusterParam.deltay; 
     }
  
   } // if ( IrradiationBiasCorrection_ )
     
   //cout<<" in PixelCPEGeneric:localPosition - pos = "<<xPos<<" "<<yPos<<endl; //dk
 
   //--- Now put the two together
   LocalPoint pos_in_local( xPos, yPos );
   return pos_in_local;
 }