Belle II Software  release-08-01-10
MCSegmentTripleFilter Class Reference

Filter for the constuction of segment triples based on monte carlo information. More...

#include <MCSegmentTripleFilter.h>

Inheritance diagram for MCSegmentTripleFilter:
Collaboration diagram for MCSegmentTripleFilter:

Public Types

using Object = CDCSegmentTriple
 Type of the object to be analysed.
 
using Interface = Filter< CDCSegmentTriple >
 Mark this class as the basic interface.
 

Public Member Functions

 MCSegmentTripleFilter (bool allowReverse=true)
 Constructor initializing the symmetry flag.
 
void exposeParameters (ModuleParamList *moduleParamList, const std::string &prefix) final
 Expose the parameters to a module.
 
void initialize () final
 Initialize the before event processing.
 
Weight operator() (const CDCSegmentTriple &segmentTriple) final
 Check if the segment triple is aligned in the Monte Carlo track. Signals NAN if not. More...
 
void setAllowReverse (bool allowReverse) override
 Setter for the allow reverse parameter.
 
void beginEvent () override
 Signal the beginning of a new event.
 
bool needsTruthInformation () final
 Indicates that the filter requires Monte Carlo information.
 
bool getAllowReverse () const
 Getter for the allow reverse parameter.
 
virtual Weight operator() (const Object &obj)
 Function to evaluate the object. More...
 
Weight operator() (const Object *obj)
 Function to evaluate the object. More...
 
void beginRun () override
 Receive and dispatch signal for the beginning of a new run.
 
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 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 = MCSymmetric< BaseSegmentTripleFilter >
 Type of the super class.
 

Private Member Functions

void setTrajectoryOf (const CDCSegmentTriple &segmentTriple) const
 Sets the trajectories of the segment triple from Monte Carlo information. Is executed for good segment triples.
 

Private Attributes

MCAxialSegmentPairFilter m_mcAxialSegmentPairFilter
 Instance of the cell filter to reject neighborhoods of false cells.
 
bool m_param_allowReverse
 Switch to indicate if the reversed version of the object shall also be accepted (default is true).
 
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

Filter for the constuction of segment triples based on monte carlo information.

Definition at line 27 of file MCSegmentTripleFilter.h.

Member Function Documentation

◆ operator()() [1/3]

Weight operator() ( const CDCSegmentTriple segmentTriple)
final

Check if the segment triple is aligned in the Monte Carlo track. Signals NAN if not.

Recheck the axial axial compatability

Definition at line 47 of file MCSegmentTripleFilter.cc.

48 {
49  const CDCAxialSegment2D* ptrStartSegment = segmentTriple.getStartSegment();
50  const CDCStereoSegment2D* ptrMiddleSegment = segmentTriple.getMiddleSegment();
51  const CDCAxialSegment2D* ptrEndSegment = segmentTriple.getEndSegment();
52 
53  const CDCAxialSegment2D& startSegment = *ptrStartSegment;
54  const CDCAxialSegment2D& middleSegment = *ptrMiddleSegment;
55  const CDCAxialSegment2D& endSegment = *ptrEndSegment;
56 
58  Weight pairWeight =
59  m_mcAxialSegmentPairFilter(CDCAxialSegmentPair(ptrStartSegment, ptrEndSegment));
60 
61  if (std::isnan(pairWeight)) return NAN;
62 
64 
65  // Check if the segments are aligned correctly along the Monte Carlo track
66  EForwardBackward startToMiddleFBInfo = mcSegmentLookUp.areAlignedInMCTrack(ptrStartSegment, ptrMiddleSegment);
67  if (startToMiddleFBInfo == EForwardBackward::c_Invalid) return NAN;
68 
69  EForwardBackward middleToEndFBInfo = mcSegmentLookUp.areAlignedInMCTrack(ptrMiddleSegment, ptrEndSegment);
70  if (middleToEndFBInfo == EForwardBackward::c_Invalid) return NAN;
71 
72 
73  if (startToMiddleFBInfo != middleToEndFBInfo) return NAN;
74 
75 
76  if ((startToMiddleFBInfo == EForwardBackward::c_Forward and middleToEndFBInfo == EForwardBackward::c_Forward) or
77  (getAllowReverse() and startToMiddleFBInfo == EForwardBackward::c_Backward and middleToEndFBInfo == EForwardBackward::c_Backward)) {
78 
79  // Do fits
80  setTrajectoryOf(segmentTriple);
81 
82  Weight cellWeight = startSegment.size() + middleSegment.size() + endSegment.size();
83  return startToMiddleFBInfo > 0 ? cellWeight : -cellWeight;
84  }
85 
86  return NAN;
87 }
Class representing a pair of reconstructed axial segements in adjacent superlayer.
EForwardBackward areAlignedInMCTrack(const ACDCHitCollection *ptrFromHits, const ACDCHitCollection *ptrToHits) const
Returns if the second collection of hits follows the first collection of hits in their common Monte C...
Specialisation of the lookup for the truth values of two dimensional segments.
static const CDCMCSegment2DLookUp & getInstance()
Getter for the singletone instance.
A reconstructed sequence of two dimensional hits in one super layer.
Definition: CDCSegment2D.h:39
const CDCAxialSegment2D * getStartSegment() const
Getter for the start axial segment.
const CDCAxialSegment2D * getEndSegment() const
Getter for the end axial segment.
const CDCStereoSegment2D * getMiddleSegment() const
Getter for the middle stereo segment.
MCAxialSegmentPairFilter m_mcAxialSegmentPairFilter
Instance of the cell filter to reject neighborhoods of false cells.
void setTrajectoryOf(const CDCSegmentTriple &segmentTriple) const
Sets the trajectories of the segment triple from Monte Carlo information. Is executed for good segmen...
bool getAllowReverse() const
Getter for the allow reverse parameter.
EForwardBackward
Enumeration to represent the distinct possibilities of the right left passage information.

◆ operator()() [2/3]

Weight operator() ( const Object obj)
virtualinherited

Function to evaluate the object.

Base implementation accepts all objects.

Parameters
objThe object to be accepted or rejected.
Returns
A finite float value if the object is accepted. NAN if the object is rejected.

Definition at line 66 of file Filter.icc.h.

◆ operator()() [3/3]

Weight operator() ( const Object obj)
inherited

Function to evaluate the object.

Base implementation accepts all objects, except nullptr.

Parameters
objThe object to be accepted or rejected.
Returns
A finit float value if the object is accepted. NAN if the object is rejected. Nullptr is always rejected.

Definition at line 76 of file Filter.icc.h.


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