TkStripMeasurementDet.cc

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#include "TkStripMeasurementDet.h"
#include "TrackingTools/TransientTrackingRecHit/interface/InvalidTransientRecHit.h"
#include "Geometry/CommonTopologies/interface/StripTopology.h"
#include "TrackingTools/MeasurementDet/interface/MeasurementDetException.h"
#include "TrackingTools/PatternTools/interface/TrajectoryMeasurement.h"
#include "RecoTracker/TransientTrackingRecHit/interface/TSiStripRecHit2DLocalPos.h"
#include "DataFormats/TrackerRecHit2D/interface/SiStripRecHit2D.h"
#include "TrackingTools/DetLayers/interface/MeasurementEstimator.h"
#include "TrackingTools/PatternTools/interface/TrajMeasLessEstim.h"

#include <typeinfo>
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "DataFormats/SiStripDetId/interface/SiStripDetId.h"
#include<cassert>

TkStripMeasurementDet::TkStripMeasurementDet( const GeomDet* gdet, StMeasurementConditionSet & conditions ) : 
  MeasurementDet (gdet), index_(-1), theDetConditions(&conditions)
  {
    if (dynamic_cast<const StripGeomDetUnit*>(gdet) == nullptr) {
      throw MeasurementDetException( "TkStripMeasurementDet constructed with a GeomDet which is not a StripGeomDetUnit");
    }
  }


// fast check if the det contains any useful cluster
bool TkStripMeasurementDet::empty(const MeasurementTrackerEvent & data) const {
  if UNLIKELY( (!isActive(data)) || isEmpty(data.stripData())) return true;

    const detset & detSet = data.stripData().detSet(index()); 
    for ( auto ci = detSet.begin(); ci != detSet.end(); ++ ci ) {
      if (isMasked(*ci)) continue;
      SiStripClusterRef  cluster = detSet.makeRefTo( data.stripData().handle(), ci); 
      if (accept(cluster, data.stripClustersToSkip()))
    return false;
    }
    return true;
}


TkStripMeasurementDet::RecHitContainer 
TkStripMeasurementDet::recHits( const TrajectoryStateOnSurface& ts, const MeasurementTrackerEvent & data) const
{
  RecHitContainer result;
  if UNLIKELY( (!isActive(data)) || isEmpty(data.stripData())) return result;
    const detset & detSet = data.stripData().detSet(index()); 
    result.reserve(detSet.size());
    for ( new_const_iterator ci = detSet.begin(); ci != detSet.end(); ++ ci ) {
      if (isMasked(*ci)) continue;
      // for ( ClusterIterator ci=theClusterRange.first; ci != theClusterRange.second; ci++) {
      SiStripClusterRef  cluster = detSet.makeRefTo( data.stripData().handle(), ci); 
      if (accept(cluster, data.stripClustersToSkip()))
    result.push_back( buildRecHit( cluster, ts));
      else LogDebug("TkStripMeasurementDet")<<"skipping this str from last iteration on"<<rawId()<<" key: "<<cluster.key();
    }
  return result;

}


// FIXME need to be merged with simpleRecHits
bool TkStripMeasurementDet::recHits(SimpleHitContainer & result,  
                    const TrajectoryStateOnSurface& stateOnThisDet, 
                    const MeasurementEstimator& est, const MeasurementTrackerEvent & data) const {
  if UNLIKELY( (!isActive(data)) || isEmpty(data.stripData())) return false;
  auto oldSize = result.size();
  
  int utraj =  specificGeomDet().specificTopology().measurementPosition( stateOnThisDet.localPosition()).x();
  const detset & detSet = data.stripData().detSet(index());
  auto const & cpepar = cpe()->getAlgoParam(specificGeomDet(),stateOnThisDet.localParameters());

  auto rightCluster = 
    std::find_if( detSet.begin(), detSet.end(), [utraj](const SiStripCluster& hit) { return hit.firstStrip() > utraj; });
  
  
  std::vector<SiStripRecHit2D> tmp;
  if ( rightCluster != detSet.begin()) {
    // there are hits on the left of the utraj
    auto leftCluster = rightCluster;
    while ( --leftCluster >=  detSet.begin()) {
      SiStripClusterRef clusterref = detSet.makeRefTo( data.stripData().handle(), leftCluster); 
      bool isCompatible = filteredRecHits(clusterref, cpepar, stateOnThisDet, est, data.stripClustersToSkip(), tmp);
      if(!isCompatible) break; // exit loop on first incompatible hit
      for (auto && h: tmp) result.push_back(new SiStripRecHit2D(std::move(h)));
      tmp.clear();                              
    }
  }
  for ( ; rightCluster != detSet.end(); rightCluster++) {
    SiStripClusterRef clusterref = detSet.makeRefTo( data.stripData().handle(), rightCluster); 
    bool isCompatible = filteredRecHits(clusterref, cpepar, stateOnThisDet, est, data.stripClustersToSkip(), tmp);
    if(!isCompatible) break; // exit loop on first incompatible hit
    for (auto && h: tmp) result.push_back(new SiStripRecHit2D(std::move(h))); 
    tmp.clear();
  }
  
  return result.size()>oldSize;
}




bool TkStripMeasurementDet::simpleRecHits( const TrajectoryStateOnSurface& stateOnThisDet, const MeasurementEstimator& est, 
                       const MeasurementTrackerEvent & data,
                       std::vector<SiStripRecHit2D> &result) const  {
  if UNLIKELY( (!isActive(data)) || isEmpty(data.stripData())) return false;

  auto oldSize = result.size();

  int utraj =  specificGeomDet().specificTopology().measurementPosition( stateOnThisDet.localPosition()).x();
  const detset & detSet = data.stripData().detSet(index());
  auto const & cpepar = cpe()->getAlgoParam(specificGeomDet(),stateOnThisDet.localParameters());
  
  auto rightCluster = 
    std::find_if( detSet.begin(), detSet.end(), [utraj](const SiStripCluster& hit) { return hit.firstStrip() > utraj; });
  
  if ( rightCluster != detSet.begin()) {
    // there are hits on the left of the utraj
    auto leftCluster = rightCluster;
    while ( --leftCluster >=  detSet.begin()) {
      SiStripClusterRef clusterref = detSet.makeRefTo( data.stripData().handle(), leftCluster); 
      bool isCompatible = filteredRecHits(clusterref, cpepar, stateOnThisDet, est, data.stripClustersToSkip(), result);
      if(!isCompatible) break; // exit loop on first incompatible hit
    }
  }
  for ( ; rightCluster != detSet.end(); rightCluster++) {
    SiStripClusterRef clusterref = detSet.makeRefTo( data.stripData().handle(), rightCluster); 
    bool isCompatible = filteredRecHits(clusterref, cpepar, stateOnThisDet, est, data.stripClustersToSkip(), result);
    if(!isCompatible) break; // exit loop on first incompatible hit
  }
  
  return result.size()>oldSize;
}



bool
TkStripMeasurementDet::recHits( const TrajectoryStateOnSurface& stateOnThisDet, const MeasurementEstimator& est, const MeasurementTrackerEvent & data, 
                RecHitContainer & result, std::vector<float> & diffs ) const {
  if UNLIKELY( (!isActive(data)) || isEmpty(data.stripData())) return false;

  auto oldSize = result.size();
  auto const & cpepar = cpe()->getAlgoParam(specificGeomDet(),stateOnThisDet.localParameters());

  int utraj =  specificGeomDet().specificTopology().measurementPosition( stateOnThisDet.localPosition()).x();
 
    const detset & detSet = data.stripData().detSet(index()); 
    auto rightCluster = 
      std::find_if( detSet.begin(), detSet.end(), [utraj](const SiStripCluster& hit) { return hit.firstStrip() > utraj; });
    
    if ( rightCluster != detSet.begin()) {
      // there are hits on the left of the utraj
      auto leftCluster = rightCluster;
      while ( --leftCluster >=  detSet.begin()) {
    SiStripClusterRef clusterref = detSet.makeRefTo( data.stripData().handle(), leftCluster); 
    bool isCompatible = filteredRecHits(clusterref, cpepar, stateOnThisDet, est, data.stripClustersToSkip(), result, diffs);
    if(!isCompatible) break; // exit loop on first incompatible hit
      }
    }
    for ( ; rightCluster != detSet.end(); rightCluster++) {
      SiStripClusterRef clusterref = detSet.makeRefTo( data.stripData().handle(), rightCluster); 
      bool isCompatible = filteredRecHits(clusterref, cpepar, stateOnThisDet, est, data.stripClustersToSkip(), result,diffs);
      if(!isCompatible) break; // exit loop on first incompatible hit
    }
    
  return result.size()>oldSize;
}

bool TkStripMeasurementDet::measurements( const TrajectoryStateOnSurface& stateOnThisDet,
                      const MeasurementEstimator& est, const MeasurementTrackerEvent & data,
                      TempMeasurements & result) const {

  if (!isActive(data)) {
    LogDebug("TkStripMeasurementDet")<<" found an inactive module "<<rawId();
     result.add(theInactiveHit, 0.F);
    return true;
  }
  
  if (!isEmpty(data.stripData())){
    LogDebug("TkStripMeasurementDet")<<" found hit on this module "<<rawId();
    RecHitContainer rechits;
    std::vector<float>  diffs;
    if (recHits(stateOnThisDet,est,data,result.hits,result.distances)) return true;
  }


  // create a TrajectoryMeasurement with an invalid RecHit and zero estimate

  if (!stateOnThisDet.hasError()) {
    result.add(theMissingHit, 0.F);
    return false;
  }

  float utraj =  specificGeomDet().specificTopology().measurementPosition( stateOnThisDet.localPosition()).x();
  float uerr= sqrt(specificGeomDet().specificTopology().measurementError(stateOnThisDet.localPosition(),stateOnThisDet.localError().positionError()).uu());
  if (testStrips(utraj,uerr)) {
    //LogDebug("TkStripMeasurementDet") << " DetID " << id_ << " empty after search, but active ";
    result.add(theMissingHit, 0.F);
    return false;
  }

  //LogDebug("TkStripMeasurementDet") << " DetID " << id_ << " empty after search, and inactive ";
  result.add(theInactiveHit, 0.F);
  return true;

}







void 
TkStripMeasurementDet::simpleRecHits( const TrajectoryStateOnSurface& ts, const MeasurementTrackerEvent & data, std::vector<SiStripRecHit2D> &result) const
{
  if (isEmpty(data.stripData()) || !isActive(data)) return;

    const detset & detSet = data.stripData().detSet(index());
    unInitDynArray(AClusters::value_type,detSet.size(),clusters);
    assert(clusters.empty());
    for (auto const & ci : detSet) {
      if (isMasked(ci)) continue;
      if (accept(detSet.makeKeyOf(&ci), data.stripClustersToSkip()))
    clusters.push_back(&ci);
      else LogDebug("TkStripMeasurementDet")<<"skipping this str from last iteration on"<<rawId()<<" key: "<<detSet.makeKeyOf(&ci);
    }
    if (!clusters.empty()) buildSimpleRecHits(clusters, data, detSet, ts,result);
 
}



std::tuple<TkStripRecHitIter,TkStripRecHitIter>
TkStripMeasurementDet::hitRange( const TrajectoryStateOnSurface& ts, const MeasurementTrackerEvent & data) const
{
  if (isEmpty(data.stripData()) || !isActive(data)) return std::tuple<TkStripRecHitIter,TkStripRecHitIter>();
     const detset & detSet = data.stripData().detSet(index()); 
     return std::make_tuple(TkStripRecHitIter(detSet.begin(),detSet.end(),*this,ts,data),
                TkStripRecHitIter(detSet.end(),detSet.end(),*this,ts,data)
                );
}

void TkStripMeasurementDet::advance(TkStripRecHitIter & hi ) const {
  while (!hi.empty()) {
    auto ci = hi.clusterI;
    auto const & data = *hi.data;
    if (isMasked(*ci)) continue;
    SiStripClusterRef  cluster = edmNew::makeRefTo( data.stripData().handle(), ci ); 
    if (accept(cluster, data.stripClustersToSkip())) return;
    ++hi.clusterI;
  }
}

SiStripRecHit2D TkStripMeasurementDet::hit(TkStripRecHitIter const & hi ) const {
  const GeomDetUnit& gdu( specificGeomDet());
  auto ci = hi.clusterI;
  auto const & data = *hi.data;
  auto const & ltp = *hi.tsos;
  
  SiStripClusterRef  cluster = edmNew::makeRefTo( data.stripData().handle(), ci ); 
  LocalValues lv = cpe()->localParameters( *cluster, gdu, ltp);
  return SiStripRecHit2D(lv.first,lv.second, gdu, cluster);
}

bool
TkStripMeasurementDet::testStrips(float utraj, float uerr) const {
    int16_t start = (int16_t) std::max<float>(utraj - 3.f*uerr, 0);
    int16_t end   = (int16_t) std::min<float>(utraj + 3.f*uerr, totalStrips());

    if (start >= end) { // which means either end <=0 or start >= totalStrips_
        /* LogDebug("TkStripMeasurementDet") << "Testing module " << id_ <<","<<
            " U = " << utraj << " +/- " << uerr << 
            "; Range [" << (utraj - 3*uerr) << ", " << (utraj + 3*uerr) << "] " << 
            ": YOU'RE COMPLETELY OFF THE MODULE."; */
        //return false; 
        return true;  // Wolfgang thinks this way is better
                      // and solves some problems with grouped ckf
    } 

    typedef std::vector<BadStripBlock>::const_iterator BSBIT;

    int16_t bad = 0, largestBadBlock = 0;
    for (BSBIT bsbc = badStripBlocks().begin(), bsbe = badStripBlocks().end(); bsbc != bsbe; ++bsbc) {
        if (bsbc->last  < start) continue;
        if (bsbc->first > end)   break;
        int16_t thisBad = std::min(bsbc->last, end) - std::max(bsbc->first, start);
        if (thisBad > largestBadBlock) largestBadBlock = thisBad;
        bad += thisBad;
    }

    bool ok = (bad < (end-start)) && 
      (uint16_t(bad) <= badStripCuts().maxBad) && 
      (uint16_t(largestBadBlock) <= badStripCuts().maxConsecutiveBad);

//    if (bad) {   
//       edm::LogWarning("TkStripMeasurementDet") << "Testing module " << id_ <<" (subdet: "<< SiStripDetId(id_).subdetId() << ")" <<
//            " U = " << utraj << " +/- " << uerr << 
//            "; Range [" << (utraj - 3*uerr) << ", " << (utraj + 3*uerr) << "] " << 
//            "= [" << start << "," << end << "]" <<
//            " total strips:" << (end-start) << ", good:" << (end-start-bad) << ", bad:" << bad << ", largestBadBlock: " << largestBadBlock << 
//            ". " << (ok ? "OK" : "NO"); 
//    }
    return ok;
}