SegmentOrienter Class Reference

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

#include <SegmentOrienter.h>

Inheritance diagram for SegmentOrienter:

Collaboration diagram for SegmentOrienter:

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< CDCSegment2D > &inputSegments, std::vector< CDCSegment2D > &outputSegments) 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 CDCSegment2D, CDCSegment2D >
	Type of the base class.

Private Attributes
std::string	m_param_segmentOrientationString = ""
	Parameter: String that states the desired segment orientation. More...
EPreferredDirection	m_segmentOrientation = EPreferredDirection::c_None
	Encoded desired segment 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 segments by a simple heuristic.

Definition at line 37 of file SegmentOrienter.h.

Member Function Documentation

apply()

void apply ( const std::vector< CDCSegment2D > &  inputSegments, std::vector< CDCSegment2D > &  outputSegments  )

final

Main algorithm applying the adjustment of the orientation.

Copy segments to output fixing their orientation

Definition at line 54 of file SegmentOrienter.cc.

{
  if (m_segmentOrientation == EPreferredDirection::c_None) {
    // Copy the segments unchanged.
    outputSegments = inputSegments;
 
  } else if (m_segmentOrientation == EPreferredDirection::c_Symmetric) {
    outputSegments.reserve(2 * inputSegments.size());
    for (const CDCSegment2D& segment : inputSegments) {
      outputSegments.push_back(segment);
      if (segment->hasReverseFlag()) continue; // Already a reverse found in the facet ca
      outputSegments.back()->setReverseFlag();
      outputSegments.push_back(segment.reversed());
      outputSegments.back()->setReverseFlag();
    }
 
  } else if (m_segmentOrientation == EPreferredDirection::c_Curling) {
    // Only make a copy for segments that are curling inside the CDC
    // Others fix to flighing outwards
    outputSegments.reserve(1.5 * inputSegments.size());
    for (const CDCSegment2D& segment : inputSegments) {
      if (segment->hasReverseFlag()) {
        outputSegments.push_back(segment);
        continue; // Already a reverse found in the facet ca
      }
      const CDCTrajectory2D& trajectory2D = segment.getTrajectory2D();
      bool isFitted = trajectory2D.isFitted();
      bool isCurler = trajectory2D.isCurler(1.1);
      bool isOriginer = trajectory2D.isOriginer();
      // Trajectory is leaving the CDC starting in the inner volume
      bool isLeaver = isFitted and (not isCurler) and isOriginer;
      if (isLeaver) {
        // Fix to outwards flying
        const CDCRecoHit2D& firstHit = segment.front();
        const CDCRecoHit2D& lastHit = segment.back();
        if (lastHit.getRecoPos2D().cylindricalR() < firstHit.getRecoPos2D().cylindricalR()) {
          outputSegments.push_back(segment.reversed());
        } else {
          outputSegments.push_back(segment);
        }
      } else {
        // Ambigious keep both options
        outputSegments.push_back(segment);
        outputSegments.back()->setReverseFlag();
        outputSegments.push_back(segment.reversed());
        outputSegments.back()->setReverseFlag();
      }
    }
 
  } else if (m_segmentOrientation == EPreferredDirection::c_Outwards) {
    outputSegments.reserve(inputSegments.size());
    for (const CDCSegment2D& segment : inputSegments) {
      const CDCRecoHit2D& firstHit = segment.front();
      const CDCRecoHit2D& lastHit = segment.back();
      if (lastHit.getRecoPos2D().cylindricalR() < firstHit.getRecoPos2D().cylindricalR()) {
        outputSegments.push_back(segment.reversed());
      } else {
        outputSegments.push_back(segment);
      }
    }
  } else if (m_segmentOrientation == EPreferredDirection::c_Downwards) {
    outputSegments.reserve(inputSegments.size());
    for (const CDCSegment2D& segment : inputSegments) {
      const CDCRecoHit2D& firstHit = segment.front();
      const CDCRecoHit2D& lastHit = segment.back();
      if (lastHit.getRecoPos2D().y() > firstHit.getRecoPos2D().y()) {
        outputSegments.push_back(segment.reversed());
      } else {
        outputSegments.push_back(segment);
      }
    }
 
  } else {
    B2WARNING("Unexpected 'SegmentOrientation' parameter of segment finder module : '" <<
              m_param_segmentOrientationString <<
              "'. No segments are put out.");
  }
}

Member Data Documentation

m_param_segmentOrientationString

std::string m_param_segmentOrientationString = ""

private

Parameter: String that states the desired segment orientation.

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

Definition at line 62 of file SegmentOrienter.h.

m_segmentOrientation

EPreferredDirection m_segmentOrientation = EPreferredDirection::c_None

private

Encoded desired segment orientation.

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

Definition at line 68 of file SegmentOrienter.h.

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

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