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loizides |
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// $Id: FillerStripHits.cc,v 1.4 2009/11/19 14:35:23 loizides Exp $
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#include "MitProd/TreeFiller/interface/FillerStripHits.h"
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#include "DataFormats/GeometryVector/interface/GlobalPoint.h"
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#include "DataFormats/GeometryVector/interface/LocalPoint.h"
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#include "DataFormats/SiStripDetId/interface/StripSubdetector.h"
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#include "DataFormats/SiStripDetId/interface/TECDetId.h"
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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/TrackerRecHit2D/interface/SiStripMatchedRecHit2DCollection.h"
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#include "FWCore/Framework/interface/ESHandle.h"
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#include "Geometry/TrackerGeometryBuilder/interface/StripGeomDetUnit.h"
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#include "Geometry/CommonTopologies/interface/StripTopology.h"
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#include "Geometry/Records/interface/TrackerDigiGeometryRecord.h"
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#include "Geometry/TrackerGeometryBuilder/interface/TrackerGeometry.h"
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#include "MitAna/DataTree/interface/Names.h"
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#include "MitAna/DataTree/interface/StripHitCol.h"
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#include "MitProd/ObjectService/interface/ObjectService.h"
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using namespace std;
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using namespace edm;
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using namespace mithep;
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//--------------------------------------------------------------------------------------------------
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FillerStripHits::FillerStripHits(const ParameterSet &cfg, const char *name, bool active) :
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BaseFiller(cfg,name,active),
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edmName_(Conf().getUntrackedParameter<string>("edmName","siStripMatchedRecHits:stereoRecHit")),
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mitName_(Conf().getUntrackedParameter<string>("mitName",Names::gkStripHitBrn)),
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shits_(new mithep::StripHitArr(1000))
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{
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// Constructor.
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}
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//--------------------------------------------------------------------------------------------------
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FillerStripHits::~FillerStripHits()
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{
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// Destructor.
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delete shits_;
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}
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//--------------------------------------------------------------------------------------------------
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void FillerStripHits::BookDataBlock(TreeWriter &tws, const edm::EventSetup &es)
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{
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// Add tracks branch to tree, publish and get tracker geometry.
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tws.AddBranch(mitName_,&shits_);
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OS()->add<StripHitArr>(shits_,mitName_);
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}
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//--------------------------------------------------------------------------------------------------
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void FillerStripHits::FillDataBlock(const edm::Event &event,
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const edm::EventSetup &setup)
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{
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// Fill pixel hits from edm collection into our collection.
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shits_->Delete();
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// initialize handle and get product
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Handle<SiStripMatchedRecHit2DCollection> hRecHits;
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GetProduct(edmName_, hRecHits, event);
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const SiStripMatchedRecHit2DCollection *hits = hRecHits.product();
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if (!hits->size())
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return;
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// get tracker geometry
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edm::ESHandle<TrackerGeometry> trackerHandle;
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setup.get<TrackerDigiGeometryRecord>().get(trackerHandle);
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const TrackerGeometry *tgeo = trackerHandle.product();
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for(SiStripMatchedRecHit2DCollection::DataContainer::const_iterator hit = hits->data().begin(),
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end = hits->data().end(); hit != end; ++hit) {
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const SiStripRecHit2D *shit = hit->stereoHit();
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if (!shit)
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continue;
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if (!shit->isValid())
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continue;
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int type = 0;
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int gtyp = 0;
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DetId id(shit->geographicalId());
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if(id.subdetId() == int(StripSubdetector::TIB)) {
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type = 1;
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} else if (id.subdetId() == int(StripSubdetector::TID)) {
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type = 2;
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} else if (id.subdetId() == int(StripSubdetector::TOB)) {
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type = 3;
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TOBDetId pid(id);
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gtyp = pid.layerNumber();
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if (pid.isZMinusSide())
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gtyp = -gtyp;
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} else if (id.subdetId() == int(StripSubdetector::TEC)) {
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type = 4;
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} else {
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continue;
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}
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const StripGeomDetUnit *tgdu =
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static_cast<const StripGeomDetUnit*>(tgeo->idToDetUnit(id));
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LocalPoint lpos = LocalPoint(shit->localPosition().x(),
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shit->localPosition().y(),
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shit->localPosition().z());
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GlobalPoint gpos = tgdu->toGlobal(lpos);
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mithep::StripHit *newhit = shits_->Allocate();
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new (newhit) mithep::StripHit(gpos.x(),gpos.y(),gpos.z());
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newhit->SetType(type);
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newhit->SetGeoType(gtyp);
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}
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shits_->Trim();
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}
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