Reference Manual

Go to the documentation of this file.
00001 #include "RecoTracker/SpecialSeedGenerators/interface/CtfSpecialSeedGenerator.h"
00002 //#include "RecoTracker/SpecialSeedGenerators/interface/CosmicLayerTriplets.h"
00003 #include "DataFormats/SiStripDetId/interface/TIBDetId.h"
00004 #include "DataFormats/SiStripDetId/interface/TOBDetId.h"
00005 #include "DataFormats/SiStripDetId/interface/TIDDetId.h"
00006 #include "DataFormats/SiStripDetId/interface/TECDetId.h"
00007 #include "DataFormats/GeometrySurface/interface/RectangularPlaneBounds.h"
00008 #include "TrackingTools/GeomPropagators/interface/StraightLinePlaneCrossing.h"
00009 
00010 #include "RecoTracker/TkTrackingRegions/interface/TrackingRegionProducerFactory.h"
00011 #include "RecoTracker/TkTrackingRegions/interface/TrackingRegion.h"
00012 #include "RecoTracker/TkTrackingRegions/interface/OrderedHitsGeneratorFactory.h"
00013 #include "RecoTracker/TkSeedingLayers/interface/OrderedSeedingHits.h"
00014 
00015 #include "FWCore/MessageLogger/interface/MessageLogger.h"
00016 
00017 #include "RecoTracker/SpecialSeedGenerators/interface/ClusterChecker.h"
00018 
00019 using namespace ctfseeding;
00020 
00021 CtfSpecialSeedGenerator::CtfSpecialSeedGenerator(const edm::ParameterSet& conf): 
00022   conf_(conf),
00023   requireBOFF(conf.getParameter<bool>("requireBOFF")),
00024   theMaxSeeds(conf.getParameter<int32_t>("maxSeeds"))
00025 {
00026         useScintillatorsConstraint = conf_.getParameter<bool>("UseScintillatorsConstraint");
00027         edm::LogVerbatim("CtfSpecialSeedGenerator") << "Constructing CtfSpecialSeedGenerator";
00028         produces<TrajectorySeedCollection>();
00029         theSeedBuilder =0; 
00030         theRegionProducer =0;
00031 }
00032 
00033 CtfSpecialSeedGenerator::~CtfSpecialSeedGenerator(){
00034 }
00035 
00036 void CtfSpecialSeedGenerator::endRun(edm::Run &, edm::EventSetup const&){
00037     if (theSeedBuilder)    { delete theSeedBuilder;    theSeedBuilder = 0; }
00038     if (theRegionProducer) { delete theRegionProducer; theRegionProducer = 0; }
00039     std::vector<OrderedHitsGenerator*>::iterator iGen;  
00040     for (iGen = theGenerators.begin(); iGen != theGenerators.end(); iGen++){
00041         delete (*iGen);
00042     }
00043     theGenerators.clear();
00044 }
00045 
00046 void CtfSpecialSeedGenerator::beginRun(edm::Run &, const edm::EventSetup& iSetup){
00047         std::string builderName = conf_.getParameter<std::string>("TTRHBuilder");
00048         iSetup.get<TransientRecHitRecord>().get(builderName,theBuilder);
00049 
00050         iSetup.get<IdealMagneticFieldRecord>().get(theMagfield);
00051         iSetup.get<TrackerDigiGeometryRecord>().get(theTracker);
00052 
00053         edm::LogVerbatim("CtfSpecialSeedGenerator") << "Initializing...";
00054         if (useScintillatorsConstraint){
00055                 edm::ParameterSet upperScintPar = conf_.getParameter<edm::ParameterSet>("UpperScintillatorParameters");
00056                 edm::ParameterSet lowerScintPar = conf_.getParameter<edm::ParameterSet>("LowerScintillatorParameters");
00057                 RectangularPlaneBounds upperBounds(upperScintPar.getParameter<double>("WidthInX"),
00058                                              upperScintPar.getParameter<double>("LenghtInZ"),
00059                                              1);
00060                 GlobalPoint upperPosition(upperScintPar.getParameter<double>("GlobalX"),
00061                                         upperScintPar.getParameter<double>("GlobalY"),
00062                                         upperScintPar.getParameter<double>("GlobalZ"));
00063                 edm::LogVerbatim("CtfSpecialSeedGenerator")
00064                         << "Upper Scintillator position x, y, z " << upperPosition.x()
00065                         << ", " << upperPosition.y() << ", " << upperPosition.z();
00066                 RectangularPlaneBounds lowerBounds(lowerScintPar.getParameter<double>("WidthInX"),
00067                                              lowerScintPar.getParameter<double>("LenghtInZ"),
00068                                              1);
00069                 GlobalPoint lowerPosition(lowerScintPar.getParameter<double>("GlobalX"),
00070                                      lowerScintPar.getParameter<double>("GlobalY"),
00071                                      lowerScintPar.getParameter<double>("GlobalZ"));
00072                 edm::LogVerbatim("CtfSpecialSeedGenerator")
00073                         << "Lower Scintillator position x, y, z " << lowerPosition.x()
00074                         << ", " << lowerPosition.y() << ", " << lowerPosition.z() ;
00075                 TkRotation<float> rot(1,0,0,0,0,1,0,1,0);
00076                 upperScintillator = BoundPlane::build(upperPosition, rot, &upperBounds);
00077                 lowerScintillator = BoundPlane::build(lowerPosition, rot, &lowerBounds);
00078         } 
00079         edm::ParameterSet regfactoryPSet = conf_.getParameter<edm::ParameterSet>("RegionFactoryPSet");
00080         std::string regfactoryName = regfactoryPSet.getParameter<std::string>("ComponentName");
00081         theRegionProducer = TrackingRegionProducerFactory::get()->create(regfactoryName,regfactoryPSet);
00082         
00083         edm::ESHandle<Propagator>  propagatorAlongHandle;
00084         iSetup.get<TrackingComponentsRecord>().get("PropagatorWithMaterial",propagatorAlongHandle);
00085         edm::ESHandle<Propagator>  propagatorOppositeHandle;
00086         iSetup.get<TrackingComponentsRecord>().get("PropagatorWithMaterialOpposite",propagatorOppositeHandle);
00087 
00088 /*      edm::ParameterSet hitsfactoryOutInPSet = conf_.getParameter<edm::ParameterSet>("OrderedHitsFactoryOutInPSet");
00089         std::string hitsfactoryOutInName = hitsfactoryOutInPSet.getParameter<std::string>("ComponentName");
00090         hitsGeneratorOutIn = OrderedHitsGeneratorFactory::get()->create( hitsfactoryOutInName, hitsfactoryOutInPSet);
00091         std::string propagationDirection = hitsfactoryOutInPSet.getUntrackedParameter<std::string>("PropagationDirection", 
00092                                                                                                     "alongMomentum");
00093         if (propagationDirection == "alongMomentum") outInPropagationDirection = alongMomentum;
00094         else outInPropagationDirection = oppositeToMomentum;
00095         edm::LogVerbatim("CtfSpecialSeedGenerator") << "hitsGeneratorOutIn done";
00096 
00097         edm::ParameterSet hitsfactoryInOutPSet = conf_.getParameter<edm::ParameterSet>("OrderedHitsFactoryInOutPSet");
00098         std::string hitsfactoryInOutName = hitsfactoryInOutPSet.getParameter<std::string>("ComponentName");
00099         hitsGeneratorInOut = OrderedHitsGeneratorFactory::get()->create( hitsfactoryInOutName, hitsfactoryInOutPSet);
00100 
00101         propagationDirection = hitsfactoryInOutPSet.getUntrackedParameter<std::string>("PropagationDirection",
00102                                                                                         "alongMomentum");
00103         if (propagationDirection == "alongMomentum") inOutPropagationDirection = alongMomentum;
00104         else inOutPropagationDirection = oppositeToMomentum;
00105         edm::LogVerbatim("CtfSpecialSeedGenerator") << "hitsGeneratorInOut done";
00106         if (!hitsGeneratorOutIn || !hitsGeneratorInOut) 
00107                 throw cms::Exception("CtfSpecialSeedGenerator") << "Only corcrete implementation GenericPairOrTripletGenerator of OrderedHitsGenerator is allowed ";
00108 */
00109         std::vector<edm::ParameterSet> pSets = conf_.getParameter<std::vector<edm::ParameterSet> >("OrderedHitsFactoryPSets");
00110         std::vector<edm::ParameterSet>::const_iterator iPSet;
00111         for (iPSet = pSets.begin(); iPSet != pSets.end(); iPSet++){
00112                 std::string hitsfactoryName = iPSet->getParameter<std::string>("ComponentName");
00113                 theGenerators.push_back(OrderedHitsGeneratorFactory::get()->create( hitsfactoryName, *iPSet));
00114                 std::string propagationDirection = iPSet->getParameter<std::string>("PropagationDirection");
00115                 if (propagationDirection == "alongMomentum") thePropDirs.push_back(alongMomentum);
00116                 else thePropDirs.push_back(oppositeToMomentum);
00117                 std::string navigationDirection = iPSet->getParameter<std::string>("NavigationDirection");              
00118                 if (navigationDirection == "insideOut") theNavDirs.push_back(insideOut);
00119                 else theNavDirs.push_back(outsideIn);
00120                 edm::LogVerbatim("CtfSpecialSeedGenerator") << "hitsGenerator done";
00121         } 
00122         bool setMomentum = conf_.getParameter<bool>("SetMomentum");
00123         std::vector<int> charges;
00124         if (setMomentum){
00125                 charges = conf_.getParameter<std::vector<int> >("Charges");
00126         }
00127         theSeedBuilder = new SeedFromGenericPairOrTriplet(theMagfield.product(), 
00128                                                           theTracker.product(), 
00129                                                           theBuilder.product(),
00130                                                           propagatorAlongHandle.product(),
00131                                                           propagatorOppositeHandle.product(),
00132                                                           charges,
00133                                                           setMomentum,
00134                                                           conf_.getParameter<double>("ErrorRescaling"));
00135         double p = 1;
00136         if (setMomentum) {
00137                 p = conf_.getParameter<double>("SeedMomentum");
00138                 theSeedBuilder->setMomentumTo(p);
00139         }
00140 
00141 }
00142 
00143 void CtfSpecialSeedGenerator::produce(edm::Event& e, const edm::EventSetup& iSetup)
00144 {
00145   // get Inputs
00146   std::auto_ptr<TrajectorySeedCollection> output(new TrajectorySeedCollection);
00147   
00148   //check on the number of clusters
00149   ClusterChecker check(conf_);
00150   if ( !requireBOFF || (theMagfield->inTesla(GlobalPoint(0,0,0)).mag() == 0.00) ) {
00151       size_t clustsOrZero = check.tooManyClusters(e);
00152       if (!clustsOrZero){
00153           bool ok = run(iSetup, e, *output);
00154           if (!ok) { ; } // nothing to do
00155       } else edm::LogError("TooManyClusters") << "Found too many clusters (" << clustsOrZero << "), bailing out.\n";
00156   }
00157   
00158   
00159   edm::LogVerbatim("CtfSpecialSeedGenerator") << " number of seeds = "<< output->size();
00160   e.put(output);
00161 }
00162 
00163 bool CtfSpecialSeedGenerator::run(const edm::EventSetup& iSetup,
00164                                                const edm::Event& e,
00165                                                TrajectorySeedCollection& output){
00166         std::vector<TrackingRegion*> regions = theRegionProducer->regions(e, iSetup);
00167         std::vector<TrackingRegion*>::const_iterator iReg;
00168         bool ok = true;
00169         for (iReg = regions.begin(); iReg != regions.end(); iReg++){
00170                 if(!theSeedBuilder->momentumFromPSet()) theSeedBuilder->setMomentumTo((*iReg)->ptMin());
00171                 std::vector<OrderedHitsGenerator*>::const_iterator iGen;
00172                 int i = 0;
00173                 for (iGen = theGenerators.begin(); iGen != theGenerators.end(); iGen++){ 
00174                   ok = buildSeeds(iSetup, 
00175                              e, 
00176                              (*iGen)->run(**iReg, e, iSetup),
00177                              theNavDirs[i], 
00178                              thePropDirs[i], 
00179                              output);
00180                   i++;
00181                   if (!ok) break;
00182                 }
00183                 if (!ok) break;
00184         }
00185         //clear memory
00186         for (std::vector<TrackingRegion*>::iterator iReg = regions.begin(); iReg != regions.end(); iReg++){
00187                 delete *iReg;
00188         }
00189         return ok;
00190 }
00191 
00192 bool CtfSpecialSeedGenerator::buildSeeds(const edm::EventSetup& iSetup,
00193                                          const edm::Event& e,
00194                                          const OrderedSeedingHits& osh,
00195                                          const NavigationDirection& navdir,
00196                                          const PropagationDirection& dir,
00197                                          TrajectorySeedCollection& output){ 
00198   //SeedFromGenericPairOrTriplet seedBuilder(conf_, magfield.product(), tracker.product(), theBuilder.product());
00199   edm::LogInfo("CtfSpecialSeedGenerator")<<"osh.size() " << osh.size();
00200   for (unsigned int i = 0; i < osh.size(); i++){
00201         SeedingHitSet shs = osh[i];
00202         if (preliminaryCheck(shs)){
00203                 std::vector<TrajectorySeed*> seeds = theSeedBuilder->seed(shs, 
00204                                                                         dir,
00205                                                                         navdir, 
00206                                                                         iSetup);
00207                 for (std::vector<TrajectorySeed*>::const_iterator iSeed = seeds.begin(); iSeed != seeds.end(); iSeed++){
00208                   if (!*iSeed) {edm::LogError("CtfSpecialSeedGenerator")<<"a seed pointer is null. skipping.";continue;}
00209                         if (postCheck(**iSeed)){
00210                                 output.push_back(**iSeed);
00211                         }
00212                         delete *iSeed;
00213                         edm::LogVerbatim("CtfSpecialSeedGenerator") << "Seed built";
00214                 }
00215         }
00216   }      
00217   if ((theMaxSeeds > 0) && (output.size() > size_t(theMaxSeeds))) {
00218     edm::LogWarning("TooManySeeds") << "Too many seeds ("<< output.size() <<"), bailing out.\n";
00219     output.clear(); 
00220     return false;
00221   }
00222   return true;
00223 }
00224 //checks the hits are on diffrent layers
00225 bool CtfSpecialSeedGenerator::preliminaryCheck(const SeedingHitSet& shs){
00226         std::vector<std::pair<unsigned int, unsigned int> > vSubdetLayer;
00227         //std::vector<std::string> vSeedLayerNames;
00228         bool checkHitsAtPositiveY       = conf_.getParameter<bool>("SeedsFromPositiveY");
00229         //***top-bottom
00230         bool checkHitsAtNegativeY       = conf_.getParameter<bool>("SeedsFromNegativeY");
00231         //***
00232         bool checkHitsOnDifferentLayers = conf_.getParameter<bool>("CheckHitsAreOnDifferentLayers");
00233       unsigned int nHits = shs.size();
00234       for (unsigned int iHit=0; iHit < nHits; ++iHit) {
00235                 //hits for the seeds must be at positive y
00236             const TrackingRecHit * trh = shs[iHit]->hit();
00237                 TransientTrackingRecHit::RecHitPointer recHit = theBuilder->build(trh);
00238                 GlobalPoint hitPos = recHit->globalPosition();
00239                 //GlobalPoint point = 
00240                 //  theTracker->idToDet(iHits->geographicalId() )->surface().toGlobal(iHits->localPosition());
00241                 if (checkHitsAtPositiveY){ if (hitPos.y() < 0) return false;}
00242                 //***top-bottom
00243                 if (checkHitsAtNegativeY){ if (hitPos.y() > 0) return false;}
00244                 //***
00245                 //std::string name = iHits->seedinglayer().name(); 
00246                 //hits for the seeds must be in different layers
00247                 unsigned int subid=(*trh).geographicalId().subdetId();
00248                 unsigned int layer = 0;
00249                 if (subid == StripSubdetector::TIB){
00250                         TIBDetId tibId((*trh).geographicalId());
00251                         layer = tibId.layer();
00252                 } else if (subid == StripSubdetector::TID){
00253                         TIDDetId tidId((*trh).geographicalId());
00254                         layer = tidId.wheel();
00255                 } else if (subid == StripSubdetector::TOB){
00256                         TOBDetId tobId((*trh).geographicalId());
00257                         layer = tobId.layer();
00258                 } else if (subid == StripSubdetector::TEC){
00259                         TECDetId tecId((*trh).geographicalId());
00260                         layer = tecId.wheel();
00261                 }
00262                 std::vector<std::pair<unsigned int, unsigned int> >::const_iterator iter;
00263                 //std::vector<std::string>::const_iterator iNames;
00264                 if (checkHitsOnDifferentLayers){
00265                         
00266                         for (iter = vSubdetLayer.begin(); iter != vSubdetLayer.end(); iter++){
00267                                 if (iter->first == subid && iter->second == layer) return false;
00268                         }
00269                         /*
00270                         for (iNames = vSeedLayerNames.begin(); iNames != vSeedLayerNames.end(); iNames++){
00271                                 if (*iNames == name) return false;
00272                         }
00273                         */
00274                 }
00275                 //vSeedLayerNames.push_back(iHits->seedinglayer().name());
00276                 vSubdetLayer.push_back(std::make_pair(subid, layer));   
00277         }
00278         return true;
00279 }
00280 
00281 
00282 bool CtfSpecialSeedGenerator::postCheck(const TrajectorySeed& seed){
00283         if (!useScintillatorsConstraint) return true; 
00284         
00285         PTrajectoryStateOnDet pstate = seed.startingState();
00286         TrajectoryStateOnSurface theTSOS = trajectoryStateTransform::transientState(pstate,
00287                                                                       &(theTracker->idToDet(DetId(pstate.detId()))->surface()),
00288                                                                       &(*theMagfield)); 
00289         FreeTrajectoryState* state = theTSOS.freeState();       
00290         StraightLinePlaneCrossing planeCrossingLower( Basic3DVector<float>(state->position()), 
00291                                                       Basic3DVector<float>(state->momentum()),
00292                                                       alongMomentum);
00293         StraightLinePlaneCrossing planeCrossingUpper( Basic3DVector<float>(state->position()),
00294                                                       Basic3DVector<float>(state->momentum()),
00295                                                       oppositeToMomentum);
00296         std::pair<bool,StraightLinePlaneCrossing::PositionType> positionUpper = 
00297           planeCrossingUpper.position(*upperScintillator);
00298         std::pair<bool,StraightLinePlaneCrossing::PositionType> positionLower = 
00299           planeCrossingLower.position(*lowerScintillator);
00300         if (!(positionUpper.first && positionLower.first)) {
00301                  edm::LogVerbatim("CtfSpecialSeedGenerator::checkDirection") 
00302                         << "Scintillator plane not crossed";
00303                  return false;
00304         }
00305         LocalPoint positionUpperLocal = upperScintillator->toLocal((GlobalPoint)(positionUpper.second));
00306         LocalPoint positionLowerLocal = lowerScintillator->toLocal((GlobalPoint)(positionLower.second));
00307         if (upperScintillator->bounds().inside(positionUpperLocal) && 
00308             lowerScintillator->bounds().inside(positionLowerLocal)) {
00309                  edm::LogVerbatim("CtfSpecialSeedGenerator::checkDirection") 
00310                                 << "position on Upper scintillator " 
00311                                 << positionUpper.second;
00312                  edm::LogVerbatim("CtfSpecialSeedGenerator::checkDirection") 
00313                                 << "position on Lower scintillator " 
00314                                 << positionLower.second;
00315                  
00316                  return true;
00317         }
00318         edm::LogVerbatim("CtfSpecialSeedGenerator::checkDirection") 
00319                 << "scintillator not crossed in bounds: position on Upper scintillator " 
00320                 << positionUpper.second << " position on Lower scintillator " << positionLower.second;
00321         return false;
00322 }
00323 
00324
/data/refman/pasoursint/CMSSW_5_3_9_patch3/src/RecoTracker/SpecialSeedGenerators/src/CtfSpecialSeedGenerator.cc
