IntermediateTrajectoryCleaner Class Reference

#include <IntermediateTrajectoryCleaner.h>

Static Public Member Functions
static void	clean (TempTrajectoryContainer &tracks)

Private Types
typedef TransientTrackingRecHit::ConstRecHitPointer	ConstRecHitPointer
typedef BaseCkfTrajectoryBuilder::TempTrajectoryContainer	TempTrajectoryContainer

Detailed Description

Definition at line 8 of file IntermediateTrajectoryCleaner.h.

Member Typedef Documentation

ConstRecHitPointer

typedef TransientTrackingRecHit::ConstRecHitPointer IntermediateTrajectoryCleaner::ConstRecHitPointer

private

Definition at line 10 of file IntermediateTrajectoryCleaner.h.

TempTrajectoryContainer

typedef BaseCkfTrajectoryBuilder::TempTrajectoryContainer IntermediateTrajectoryCleaner::TempTrajectoryContainer

private

Definition at line 9 of file IntermediateTrajectoryCleaner.h.

Member Function Documentation

clean()

void IntermediateTrajectoryCleaner::clean ( IntermediateTrajectoryCleaner::TempTrajectoryContainer &  theTrajectories )

static

Definition at line 11 of file IntermediateTrajectoryCleaner.cc.

                                                                                                               {
  if (theTrajectories.empty())
    return;
  if (theTrajectories[0].measurements().size() < 4)
    return;
 
  for (TempTrajectoryContainer::iterator firstTraj = theTrajectories.begin(), firstEnd = theTrajectories.end() - 1;
       firstTraj != firstEnd;
       ++firstTraj) {
    if ((!firstTraj->isValid()) || (!firstTraj->lastMeasurement().recHit()->isValid()))
      continue;
 
    TempTrajectory::DataContainer::const_iterator itFirst = firstTraj->measurements().rbegin();
    ConstRecHitPointer first_hit1 = itFirst->recHit();
    --itFirst;
    ConstRecHitPointer first_hit2 = itFirst->recHit();
    --itFirst;
    ConstRecHitPointer first_hit3 = itFirst->recHit();
 
    bool fh2Valid = first_hit2->isValid();
 
    for (TempTrajectoryContainer::iterator secondTraj = (firstTraj + 1), secondEnd = theTrajectories.end();
         secondTraj != secondEnd;
         ++secondTraj) {
      if ((!secondTraj->isValid()) || (!secondTraj->lastMeasurement().recHit()->isValid()))
        continue;
 
      TempTrajectory::DataContainer::const_iterator itSecond = secondTraj->measurements().rbegin();
      ConstRecHitPointer second_hit1 = itSecond->recHit();
      --itSecond;
      ConstRecHitPointer second_hit2 = itSecond->recHit();
      --itSecond;
      ConstRecHitPointer second_hit3 = itSecond->recHit();
 
      if (&(*first_hit3) == &(*second_hit3)) {
        if (fh2Valid ^ second_hit2->isValid()) {  // ^ = XOR!
          if (first_hit1->hit()->sharesInput(second_hit1->hit(), TrackingRecHit::all)) {
            if (!fh2Valid) {
              firstTraj->invalidate();
              break;
            }
            // else // if (!second_hit2->isValid())  // should be always true, as we did XOR !
            secondTraj->invalidate();
          }
        }
      }
    }
  }
  theTrajectories.erase(
      std::remove_if(theTrajectories.begin(), theTrajectories.end(), std::not_fn(&TempTrajectory::isValid)),
      theTrajectories.end());
}

References TrackingRecHit::all, and TempTrajectory::isValid().

Referenced by CkfTrajectoryBuilder::limitedCandidates().