1 |
bendavid |
1.12 |
// $Id: HitDropper.cc,v 1.11 2009/12/15 23:27:34 bendavid Exp $
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2 |
bendavid |
1.1 |
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3 |
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#include "MitEdm/Producers/interface/HitDropper.h"
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4 |
bendavid |
1.2 |
#include "DataFormats/TrackingRecHit/interface/InvalidTrackingRecHit.h"
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5 |
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#include "DataFormats/TrajectorySeed/interface/PropagationDirection.h"
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6 |
bendavid |
1.8 |
#include "DataFormats/SiPixelDetId/interface/PXBDetId.h"
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7 |
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#include "DataFormats/SiPixelDetId/interface/PXFDetId.h"
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8 |
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#include "DataFormats/SiStripDetId/interface/TIBDetId.h"
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#include "DataFormats/SiStripDetId/interface/TIDDetId.h"
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#include "DataFormats/SiStripDetId/interface/TOBDetId.h"
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#include "DataFormats/SiStripDetId/interface/TECDetId.h"
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#include "DataFormats/MuonDetId/interface/DTLayerId.h"
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#include "DataFormats/MuonDetId/interface/CSCDetId.h"
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#include "DataFormats/MuonDetId/interface/RPCDetId.h"
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bendavid |
1.2 |
#include "TrackingTools/GeomPropagators/interface/HelixArbitraryPlaneCrossing.h"
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16 |
bendavid |
1.1 |
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using namespace edm;
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using namespace mitedm;
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//--------------------------------------------------------------------------------------------------
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reco::HitPattern HitDropper::CorrectedHits(const reco::TransientTrack *tTrack,
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22 |
loizides |
1.4 |
const ThreeVector &vtxPos) const
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23 |
bendavid |
1.1 |
{
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24 |
loizides |
1.4 |
// Return reco::HitPattern structure for the given track with all hits occuring before vtxPos
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25 |
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// on the track (relative to the primary vertex if given) removed.
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// This version of the function uses an iterative helix-plane intersector and does not (yet)
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// take into account the uncertainties in vertex position.
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bendavid |
1.2 |
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const GlobalPoint vtxPoint(vtxPos.x(),vtxPos.y(),vtxPos.z());
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const TrajectoryStateClosestToPoint vtxTSCP = tTrack->trajectoryStateClosestToPoint(vtxPoint);
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bendavid |
1.1 |
reco::HitPattern hitPattern;
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int nHits = 0;
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for (uint hi=0; hi<tTrack->recHitsSize(); ++hi) {
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const TrackingRecHit *hit = tTrack->recHit(hi).get();
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36 |
mrudolph |
1.3 |
DetId geoId = hit->geographicalId();
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if(geoId == uint32_t(0)) continue;
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38 |
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const GeomDet *det = trackerGeo_->idToDet(geoId);
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39 |
bendavid |
1.2 |
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loizides |
1.7 |
HelixArbitraryPlaneCrossing c(HelixPlaneCrossing::PositionType(vtxTSCP.theState().position()),
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HelixPlaneCrossing::DirectionType(vtxTSCP.theState().momentum()),
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vtxTSCP.theState().transverseCurvature(),
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anyDirection);
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bendavid |
1.2 |
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loizides |
1.7 |
std::pair<bool,double> crossResult = c.pathLength(det->surface());
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bendavid |
1.2 |
if ( crossResult.first && crossResult.second >= 0 ) {
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bendavid |
1.1 |
hitPattern.set(*hit,nHits);
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nHits++;
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}
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}
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bendavid |
1.2 |
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bendavid |
1.1 |
return hitPattern;
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}
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//--------------------------------------------------------------------------------------------------
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reco::HitPattern HitDropper::CorrectedHits(const reco::Track *track,
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loizides |
1.4 |
const ThreeVector &vtxPos) const
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bendavid |
1.1 |
{
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loizides |
1.4 |
// Build the transient track and then return the corrected HitPattern.
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bendavid |
1.1 |
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reco::TransientTrack tTrack = builder_->build(track);
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bendavid |
1.2 |
return CorrectedHits(&tTrack, vtxPos);
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}
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//--------------------------------------------------------------------------------------------------
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reco::HitPattern HitDropper::CorrectedHits(const reco::Track *track,
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loizides |
1.4 |
const ThreeVector &vtxPos,
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const ThreeVector &trkMom,
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Double_t lxyError,
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Double_t lzError,
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Double_t sigmaTolerance) const
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bendavid |
1.2 |
{
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loizides |
1.4 |
// Return reco::HitPattern structure for the given track with all hits occuring before vtxPos
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// on the track (relative to the primary vertex if given) removed.
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// This version of the function determines this completely analytically, and taking the
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// vertex position uncertainty into account, which might be important for particles which decay
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// within a tracker layer.
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bendavid |
1.2 |
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bendavid |
1.8 |
const LocalPoint nullLocal(0,0,0);
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bendavid |
1.2 |
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reco::HitPattern hitPattern;
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int nHits = 0;
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for (uint hi=0; hi<track->recHitsSize(); ++hi) {
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const TrackingRecHit *hit = track->recHit(hi).get();
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mrudolph |
1.3 |
DetId geoId = hit->geographicalId();
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if(geoId == uint32_t(0)) continue;
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const GeomDet *det = trackerGeo_->idToDet(geoId);
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bendavid |
1.8 |
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const GlobalPoint cPos = det->toGlobal(nullLocal);
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90 |
bendavid |
1.2 |
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loizides |
1.7 |
const ThreeVector crossPos(cPos.x(), cPos.y(), cPos.z());
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bendavid |
1.2 |
const ThreeVector delta = crossPos - vtxPos;
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bendavid |
1.8 |
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bendavid |
1.2 |
Double_t lengthOverSigma = 0;
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//calculate distance between vertex and approximate hit position, projected into
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//the appropriate plane/axis and compared to the uncertainty in vertex position
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//in that plane/axis
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if (IsBarrel(det)) {
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const ThreeVector trkMomXY(trkMom.x(), trkMom.y(), 0.0);
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Double_t deltaXY = delta.Dot(trkMomXY)/trkMomXY.R();
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lengthOverSigma = deltaXY/lxyError;
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}
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else if (IsDisk(det)) {
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Double_t deltaZ = delta.z()*trkMom.z()/fabs(trkMom.z());
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lengthOverSigma = deltaZ/lzError;
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}
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else
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109 |
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throw edm::Exception(edm::errors::Configuration, "HitDropper::CorrectedHits\n")
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<< "Error! Detector element not in a valid barrel or disk layer." << std::endl;
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111 |
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112 |
loizides |
1.7 |
//add the hit only if it is after the vertex,
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//allowing for some uncertainty in the vertex position
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bendavid |
1.2 |
if ( lengthOverSigma>(-sigmaTolerance) ) {
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hitPattern.set(*hit,nHits);
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nHits++;
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}
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}
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return hitPattern;
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120 |
bendavid |
1.1 |
}
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121 |
bendavid |
1.5 |
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//--------------------------------------------------------------------------------------------------
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124 |
bendavid |
1.12 |
std::pair<reco::HitPattern,uint> HitDropper::CorrectedHitsAOD(const reco::Track *track,
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125 |
bendavid |
1.5 |
const ThreeVector &vtxPos,
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126 |
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const ThreeVector &trkMom,
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127 |
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Double_t lxyError,
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128 |
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Double_t lzError,
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129 |
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Double_t sigmaTolerance) const
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{
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// Return reco::HitPattern structure for the given track with all hits occuring before vtxPos
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132 |
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// on the track (relative to the primary vertex if given) removed.
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133 |
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// This version of the function determines this completely analytically, and taking the
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134 |
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// vertex position uncertainty into account, which might be important for particles which decay
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135 |
bendavid |
1.8 |
// within a tracker layer. In order to function in AOD, the tracker geometry is used in an
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// approximate way, at the level of barrel and disk layers. The layer thickness is taken
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// into account in the uncertainty tolerance.
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139 |
bendavid |
1.5 |
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140 |
bendavid |
1.8 |
//Figure out whether we should use the +z or -z side in the case of a disk layer
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int side = 0;
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if (track->pz() < 0)
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side = -1;
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else
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side = 1;
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bendavid |
1.5 |
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147 |
bendavid |
1.8 |
int nHits = 0;
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reco::HitPattern hitPattern;
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149 |
bendavid |
1.10 |
const reco::HitPattern* inHitPatterns[3];
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inHitPatterns[0] = &track->hitPattern();
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inHitPatterns[1] = &track->trackerExpectedHitsInner();
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inHitPatterns[2] = &track->trackerExpectedHitsOuter();
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153 |
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bendavid |
1.12 |
uint nWrongHits = 0;
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156 |
bendavid |
1.10 |
for (Int_t hp=0; hp<3; ++hp) {
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const reco::HitPattern &inhits = *inHitPatterns[hp];
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for (Int_t hi=0; hi<inhits.numberOfHits(); hi++) {
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uint32_t hit = inhits.getHitPattern(hi);
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uint32_t subdet = inhits.getSubStructure(hit);
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uint32_t layerid = inhits.getLayer(hit);
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const DetLayer *det = FindLayer(subdet,layerid,side);
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if (!det) continue;
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164 |
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bool goodHit = false;
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166 |
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//calculate distance between vertex and approximate hit position, projected into
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168 |
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//the appropriate plane/axis and compared to the uncertainty in vertex position
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169 |
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//in that plane/axis
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170 |
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if (det->location()==GeomDetEnumerators::barrel) {
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171 |
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const BarrelDetLayer *barrelDet = static_cast<const BarrelDetLayer*>(det);
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172 |
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173 |
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const double barrelRho = barrelDet->specificSurface().radius();
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174 |
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const double barrelHalfThickness = barrelDet->specificSurface().bounds().thickness()/2.0;
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175 |
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const ThreeVector crossPos(barrelRho*cos(track->phi()),barrelRho*sin(track->phi()),0.0);
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bendavid |
1.8 |
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177 |
bendavid |
1.10 |
const ThreeVector delta = crossPos - vtxPos;
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178 |
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const ThreeVector trkMomXY(trkMom.x(), trkMom.y(), 0.0);
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179 |
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const double deltaXY = delta.Dot(trkMomXY)/trkMomXY.R();
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180 |
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goodHit = deltaXY>(-sigmaTolerance*lxyError - barrelHalfThickness);
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}
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182 |
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else if (det->location()==GeomDetEnumerators::endcap) {
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183 |
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const ForwardDetLayer *forwardDet = static_cast<const ForwardDetLayer*>(det);
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184 |
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const double diskZ = forwardDet->specificSurface().position().z();
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185 |
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const double diskHalfThickness = forwardDet->specificSurface().bounds().thickness()/2.0;
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186 |
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const double deltaZ = (diskZ - vtxPos.z())*trkMom.z()/fabs(trkMom.z());;
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187 |
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goodHit = deltaZ>(-sigmaTolerance*lzError - diskHalfThickness);
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188 |
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}
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189 |
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else
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190 |
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throw edm::Exception(edm::errors::Configuration, "HitDropper::CorrectedHitsAOD\n")
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191 |
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<< "Error! Detector element not in a valid barrel or disk layer." << std::endl;
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192 |
bendavid |
1.5 |
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193 |
bendavid |
1.10 |
//add the hit only if it is after the vertex,
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194 |
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//allowing for some uncertainty in the vertex position
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195 |
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if ( goodHit ) {
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196 |
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bool isStereo = inhits.getSide(hit);
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197 |
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DetId dummyid = det->basicComponents().front()->geographicalId();
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198 |
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if (isStereo) {
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199 |
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dummyid = StereoDetId(dummyid);
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200 |
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}
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201 |
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202 |
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const TrackingRecHit::Type hitType = static_cast<TrackingRecHit::Type>(inhits.getHitType(hit));
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203 |
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InvalidTrackingRecHit dummyhit(dummyid, hitType);
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204 |
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hitPattern.set(dummyhit,nHits);
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205 |
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if ( hit != hitPattern.getHitPattern(nHits) )
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206 |
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throw edm::Exception(edm::errors::Configuration, "HitDropper::CorrectedHitsAOD\n")
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207 |
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<< "Error! Mismatch in copying hit pattern." << std::endl;
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208 |
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209 |
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nHits++;
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210 |
bendavid |
1.12 |
}
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211 |
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else {
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212 |
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if (inhits.validHitFilter(hit)) {
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213 |
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if (inhits.trackerHitFilter(hit)) {
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214 |
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nWrongHits++;
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215 |
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}
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216 |
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}
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217 |
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}
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218 |
bendavid |
1.8 |
}
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219 |
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}
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220 |
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221 |
bendavid |
1.12 |
return std::pair<reco::HitPattern,uint>(hitPattern,nWrongHits);
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222 |
bendavid |
1.8 |
}
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223 |
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224 |
bendavid |
1.11 |
reco::HitPattern HitDropper::SharedHits(const reco::Track *t1, const reco::Track *t2) const
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225 |
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{
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226 |
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//Return a hit pattern corresponding to the hits on the two tracks which share clusters
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227 |
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228 |
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int nHits = 0;
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229 |
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reco::HitPattern sharedHits;
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230 |
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231 |
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if (!t1->extra().isAvailable() || !t2->extra().isAvailable())
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232 |
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return sharedHits;
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233 |
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234 |
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for (trackingRecHit_iterator iHit1 = t1->recHitsBegin(); iHit1 != t1->recHitsEnd(); ++iHit1) {
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235 |
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const TrackingRecHit *hit1 = iHit1->get();
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236 |
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if (hit1->isValid()) {
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237 |
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for (trackingRecHit_iterator iHit2 = t2->recHitsBegin(); iHit2 != t2->recHitsEnd(); ++iHit2) {
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238 |
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const TrackingRecHit *hit2 = iHit2->get();
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239 |
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if (hit2->isValid() && hit1->sharesInput(hit2,TrackingRecHit::some)) {
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240 |
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sharedHits.set(*hit1,nHits);
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241 |
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nHits++;
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242 |
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}
|
243 |
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}
|
244 |
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}
|
245 |
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}
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246 |
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247 |
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return sharedHits;
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248 |
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249 |
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}
|
250 |
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|
251 |
bendavid |
1.8 |
//--------------------------------------------------------------------------------------------------
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252 |
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const DetLayer *HitDropper::FindLayer(int subdet, int layer, int side) const
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253 |
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{
|
254 |
loizides |
1.9 |
// Find a given layer.
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255 |
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|
256 |
bendavid |
1.8 |
switch(subdet) {
|
257 |
loizides |
1.9 |
case StripSubdetector::TIB:
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258 |
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//edm::LogInfo(TkDetLayers) << "TIB layer n: " << TIBDetId(id).layer() ;
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259 |
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return trackerGeoSearch_->tibLayers().at(layer-1);
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260 |
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break;
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261 |
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262 |
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case StripSubdetector::TOB:
|
263 |
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//edm::LogInfo(TkDetLayers) << "TOB layer n: " << TOBDetId(id).layer() ;
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264 |
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return trackerGeoSearch_->tobLayers().at(layer-1);
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265 |
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break;
|
266 |
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267 |
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case StripSubdetector::TID:
|
268 |
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//edm::LogInfo(TkDetLayers) << "TID wheel n: " << TIDDetId(id).wheel() ;
|
269 |
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if( side == -1 ) {
|
270 |
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return trackerGeoSearch_->negTidLayers().at(layer-1);
|
271 |
|
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}else if( side == 1 ) {
|
272 |
|
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return trackerGeoSearch_->posTidLayers().at(layer-1);
|
273 |
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}
|
274 |
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break;
|
275 |
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|
276 |
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case StripSubdetector::TEC:
|
277 |
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//edm::LogInfo(TkDetLayers) << "TEC wheel n: " << TECDetId(id).wheel() ;
|
278 |
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if( side == -1 ) {
|
279 |
|
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return trackerGeoSearch_->negTecLayers().at(layer-1);
|
280 |
|
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} else if( side == 1 ) {
|
281 |
|
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return trackerGeoSearch_->posTecLayers().at(layer-1);
|
282 |
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}
|
283 |
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break;
|
284 |
bendavid |
1.8 |
|
285 |
loizides |
1.9 |
case PixelSubdetector::PixelBarrel:
|
286 |
|
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//edm::LogInfo(TkDetLayers) << "PixelBarrel layer n: " << PXBDetId(id).layer() ;
|
287 |
|
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return trackerGeoSearch_->pixelBarrelLayers().at(layer-1);
|
288 |
|
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break;
|
289 |
bendavid |
1.8 |
|
290 |
loizides |
1.9 |
case PixelSubdetector::PixelEndcap:
|
291 |
|
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//edm::LogInfo(TkDetLayers) << "PixelEndcap disk n: " << PXFDetId(id).disk() ;
|
292 |
|
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if(side == -1 ) {
|
293 |
|
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return trackerGeoSearch_->negPixelForwardLayers().at(layer-1);
|
294 |
|
|
}else if( side == 1 ) {
|
295 |
|
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return trackerGeoSearch_->posPixelForwardLayers().at(layer-1);
|
296 |
|
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}
|
297 |
|
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break;
|
298 |
bendavid |
1.8 |
|
299 |
loizides |
1.9 |
default:
|
300 |
|
|
return 0;
|
301 |
|
|
// throw(something);
|
302 |
bendavid |
1.8 |
}
|
303 |
|
|
return 0; //just to avoid compile warnings
|
304 |
|
|
}
|
305 |
|
|
|
306 |
loizides |
1.9 |
//--------------------------------------------------------------------------------------------------
|
307 |
bendavid |
1.8 |
DetId HitDropper::StereoDetId(const DetId &i) const
|
308 |
|
|
{
|
309 |
loizides |
1.9 |
// Deal with stereo det id.
|
310 |
|
|
|
311 |
bendavid |
1.8 |
switch (i.det()) {
|
312 |
loizides |
1.9 |
case DetId::Tracker:
|
313 |
bendavid |
1.8 |
switch (i.subdetId()) {
|
314 |
loizides |
1.9 |
case PixelSubdetector::PixelBarrel:
|
315 |
|
|
case PixelSubdetector::PixelEndcap:
|
316 |
|
|
return 0;
|
317 |
|
|
case StripSubdetector::TIB:
|
318 |
|
|
{
|
319 |
|
|
TIBDetId id = i;
|
320 |
|
|
if (id.isStereo())
|
321 |
|
|
return id;
|
322 |
|
|
else {
|
323 |
|
|
const std::vector<unsigned int> idString = id.string();
|
324 |
|
|
return TIBDetId(id.layer(),idString[0],idString[1],idString[2],id.module(),1);
|
325 |
|
|
}
|
326 |
|
|
}
|
327 |
|
|
case StripSubdetector::TID:
|
328 |
|
|
{
|
329 |
|
|
TIDDetId id = i;
|
330 |
|
|
if (id.isStereo())
|
331 |
|
|
return id;
|
332 |
|
|
else {
|
333 |
|
|
const std::vector<unsigned int> idModule = id.module();
|
334 |
|
|
return TIDDetId(id.side(),id.wheel(),id.ring(),idModule[0],idModule[1],1);
|
335 |
|
|
}
|
336 |
|
|
}
|
337 |
bendavid |
1.8 |
case StripSubdetector::TOB:
|
338 |
|
|
{
|
339 |
loizides |
1.9 |
TOBDetId id = i;
|
340 |
|
|
if (id.isStereo())
|
341 |
|
|
return id;
|
342 |
|
|
else {
|
343 |
|
|
const std::vector<unsigned int> idRod = id.rod();
|
344 |
|
|
return TOBDetId(id.layer(),idRod[0],idRod[1],id.module(),1);
|
345 |
|
|
}
|
346 |
bendavid |
1.8 |
}
|
347 |
loizides |
1.9 |
case StripSubdetector::TEC:
|
348 |
|
|
{
|
349 |
bendavid |
1.8 |
TECDetId id = i;
|
350 |
|
|
if (id.isStereo())
|
351 |
|
|
return id;
|
352 |
|
|
else {
|
353 |
|
|
const std::vector<unsigned int> idPetal = id.petal();
|
354 |
|
|
return TECDetId(id.side(),id.wheel(),idPetal[0],idPetal[1],id.ring(),id.module(),1);
|
355 |
|
|
}
|
356 |
loizides |
1.9 |
}
|
357 |
|
|
default:
|
358 |
|
|
return 0;
|
359 |
bendavid |
1.8 |
}
|
360 |
|
|
break;
|
361 |
loizides |
1.9 |
default:
|
362 |
bendavid |
1.8 |
return 0;
|
363 |
bendavid |
1.5 |
}
|
364 |
|
|
}
|