TrackOrienter Class Reference

Fixes the orientation of tracks by a simple heuristic. More...

#include <TrackOrienter.h>

Inheritance diagram for TrackOrienter:

Collaboration diagram for TrackOrienter:

Public Types
using	IOTypes = std::tuple< AIOTypes... >
	Types that should be served to apply on invokation.
using	IOVectors = std::tuple< std::vector< AIOTypes >... >
	Vector types that should be served to apply on invokation.

Public Member Functions
std::string	getDescription () final
	Short description of the findlet.
void	exposeParameters (ModuleParamList *moduleParamList, const std::string &prefix) final
	Expose the parameters to a module.
void	initialize () final
	Signals the beginning of the event processing.
void	apply (const std::vector< CDCTrack > &inputTracks, std::vector< CDCTrack > &outputTracks) final
	Main algorithm applying the adjustment of the orientation. More...
virtual void	exposeParameters (ModuleParamList *moduleParamList __attribute__((unused)), const std::string &prefix __attribute__((unused)))
	Forward prefixed parameters of this findlet to the module parameter list.
virtual void	apply (ToVector< AIOTypes > &... ioVectors)=0
	Main function executing the algorithm.
void	beginRun () override
	Receive and dispatch signal for the beginning of a new run.
void	beginEvent () override
	Receive and dispatch signal for the start of a new event.
void	endRun () override
	Receive and dispatch signal for the end of the run.
void	terminate () override
	Receive and dispatch Signal for termination of the event processing.

Protected Types
using	ToVector = typename ToVectorImpl< T >::Type
	Short hand for ToRangeImpl.

Protected Member Functions
void	addProcessingSignalListener (ProcessingSignalListener *psl)
	Register a processing signal listener to be notified.
int	getNProcessingSignalListener ()
	Get the number of currently registered listeners.

Private Types
using	Super = Findlet< const CDCTrack, CDCTrack >
	Type of the base class.

Private Attributes
std::string	m_param_trackOrientationString = ""
	Parameter: String that states the desired track orientation. More...
EPreferredDirection	m_trackOrientation = EPreferredDirection::c_None
	Encoded desired track orientation. More...
std::vector< ProcessingSignalListener * >	m_subordinaryProcessingSignalListeners
	References to subordinary signal processing listener contained in this findlet.
bool	m_initialized = false
	Flag to keep track whether initialization happend before.
bool	m_terminated = false
	Flag to keep track whether termination happend before.
std::string	m_initializedAs
	Name of the type during initialisation.

Detailed Description

Fixes the orientation of tracks by a simple heuristic.

Definition at line 36 of file TrackOrienter.h.

Member Function Documentation

apply()

void apply ( const std::vector< CDCTrack > &  inputTracks, std::vector< CDCTrack > &  outputTracks  )

final

Main algorithm applying the adjustment of the orientation.

Copy tracks to output fixing their orientation

Definition at line 54 of file TrackOrienter.cc.

{
  if (m_trackOrientation == EPreferredDirection::c_None) {
    // Copy the tracks unchanged.
    outputTracks = inputTracks;
 
  } else if (m_trackOrientation == EPreferredDirection::c_Symmetric) {
    outputTracks.reserve(2 * inputTracks.size());
    for (const CDCTrack& track : inputTracks) {
      outputTracks.push_back(track.reversed());
      outputTracks.push_back(track);
    }
 
  } else if (m_trackOrientation == EPreferredDirection::c_Curling) {
    // Only make a copy for tracks that are curling inside the CDC
    // Others fix to flighing outwards
    outputTracks.reserve(1.5 * inputTracks.size());
    for (const CDCTrack& track : inputTracks) {
      const CDCTrajectory3D& startTrajectory3D = track.getStartTrajectory3D();
      const CDCTrajectory2D startTrajectory2D = startTrajectory3D.getTrajectory2D();
 
      const CDCTrajectory3D& endTrajectory3D = track.getEndTrajectory3D();
      const CDCTrajectory2D endTrajectory2D = endTrajectory3D.getTrajectory2D();
      bool isFitted = startTrajectory2D.isFitted() and endTrajectory2D.isFitted();
      bool isStartLeaver = (not endTrajectory2D.isCurler(1.1)) and startTrajectory2D.isOriginer();
      bool isEndLeaver = (not startTrajectory2D.isCurler(1.1)) and endTrajectory2D.isOriginer();
      // Trajectory is leaving the CDC starting in the inner volume
      bool isLeaver = isFitted and (isStartLeaver or isEndLeaver);
      if (isLeaver) {
        // Fix to outwards flying
        const CDCRecoHit3D& firstHit = track.front();
        const CDCRecoHit3D& lastHit = track.back();
        if (lastHit.getRecoPos2D().cylindricalR() < firstHit.getRecoPos2D().cylindricalR()) {
          outputTracks.push_back(track.reversed());
        } else {
          outputTracks.push_back(track);
        }
      } else {
        // Ambigious keep both options
        outputTracks.push_back(track);
        outputTracks.push_back(track.reversed());
      }
    }
 
  } else if (m_trackOrientation == EPreferredDirection::c_Outwards) {
    outputTracks.reserve(inputTracks.size());
    for (const CDCTrack& track : inputTracks) {
      const CDCRecoHit3D& firstHit = track.front();
      const CDCRecoHit3D& lastHit = track.back();
      if (lastHit.getRecoPos2D().cylindricalR() < firstHit.getRecoPos2D().cylindricalR()) {
        outputTracks.push_back(track.reversed());
      } else {
        outputTracks.push_back(track);
      }
    }
 
  } else if (m_trackOrientation == EPreferredDirection::c_Downwards) {
    outputTracks.reserve(inputTracks.size());
    for (const CDCTrack& track : inputTracks) {
      const CDCRecoHit3D& firstHit = track.front();
      const CDCRecoHit3D& lastHit = track.back();
      if (lastHit.getRecoPos2D().y() > firstHit.getRecoPos2D().y()) {
        outputTracks.push_back(track.reversed());
      } else {
        outputTracks.push_back(track);
      }
    }
 
  } else {
    B2WARNING("Unexpected 'TrackOrientation' parameter of track finder module : '" <<
              m_param_trackOrientationString <<
              "'. No tracks are put out.");
  }
}

Member Data Documentation

m_param_trackOrientationString

std::string m_param_trackOrientationString = ""

private

Parameter: String that states the desired track orientation.

Valid orientations are "none" (unchanged), "outwards", "downwards", "symmetric", "curling"

Definition at line 60 of file TrackOrienter.h.

m_trackOrientation

EPreferredDirection m_trackOrientation = EPreferredDirection::c_None

private

Encoded desired track orientation.

Valid orientations are "c_None" (unchanged), "c_Outwards", "c_Downwards", "c_Symmetric", "c_Curling",

Definition at line 66 of file TrackOrienter.h.

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The documentation for this class was generated from the following files:

• tracking/trackFindingCDC/findlets/minimal/include/TrackOrienter.h
• tracking/trackFindingCDC/findlets/minimal/src/TrackOrienter.cc