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Associator_BestDeltaRMatcher Class Referenceabstract

#include <Associator_BestMatch.h>

Inheritance diagram for Associator_BestDeltaRMatcher:
Collaboration diagram for Associator_BestDeltaRMatcher:

Public Types

typedef std::map< T *, T * > map_type
 
typedef std::map< T *, T * > rmap_type
 

Public Member Functions

 Associator_BestDeltaRMatcher (const std::string &name, double d)
 
virtual ~Associator_BestDeltaRMatcher ()
 
virtual TrackAssociator * clone () override
 
virtual double distance (const TIDA::Track *t0, const TIDA::Track *t1) const override
 
virtual void match (const std::vector< T * > &ref, const std::vector< S * > &test)
 
virtual void match (const std::vector< T * > &s1, const std::vector< T * > &s2)=0
 
virtual double distance (const T *t0, const S *t1) const =0
 
virtual const T * matched (T *t)
 
const map_type & matched () const
 
virtual const T * revmatched (T *t)
 
const rmap_type & revmatched () const
 
void clear ()
 
unsigned size () const
 

Protected Member Functions

template<typename Tp , typename Tq >
std::map< int, int > matcher (const std::vector< Tp * > &ref, const std::vector< Tq * > &test)
 

Protected Attributes

double m_d
 
std::string mname
 
map_type mmatched
 
rmap_type mrevmatched
 

Detailed Description

Definition at line 80 of file Associator_BestMatch.h.

Member Typedef Documentation

◆ map_type

typedef std::map<T*, T *> TIDA::Associator< T, T >::map_type
inherited

Definition at line 28 of file TIDAAssociator.h.

◆ rmap_type

typedef std::map<T *, T*> TIDA::Associator< T, T >::rmap_type
inherited

Definition at line 29 of file TIDAAssociator.h.

Constructor & Destructor Documentation

◆ Associator_BestDeltaRMatcher()

Associator_BestDeltaRMatcher::Associator_BestDeltaRMatcher ( const std::string &  name,
double  d 
)
inline

Definition at line 84 of file Associator_BestMatch.h.

84  :
85  Associator_BestMatcher(name, d)
86  { }

◆ ~Associator_BestDeltaRMatcher()

virtual Associator_BestDeltaRMatcher::~Associator_BestDeltaRMatcher ( )
inlinevirtual

Definition at line 88 of file Associator_BestMatch.h.

88 { }

Member Function Documentation

◆ clear()

void TIDA::Associator< T, T >::clear ( )
inlineinherited

Definition at line 63 of file TIDAAssociator.h.

63 { mmatched.clear(); mrevmatched.clear(); }

◆ clone()

virtual TrackAssociator* Associator_BestDeltaRMatcher::clone ( )
inlineoverridevirtual

Implements TIDA::Associator< T, T >.

Definition at line 90 of file Associator_BestMatch.h.

90 { return new Associator_BestDeltaRMatcher(*this); }

◆ distance() [1/2]

template<typename T , typename S = T>
virtual double BestMatcher< T, S >::distance ( const T *  t0,
const S *  t1 
) const
pure virtualinherited

Implemented in VertexMatcher, and VertexNewMatcher.

◆ distance() [2/2]

virtual double Associator_BestDeltaRMatcher::distance ( const TIDA::Track *  t0,
const TIDA::Track *  t1 
) const
inlineoverridevirtual

Definition at line 92 of file Associator_BestMatch.h.

92  {
93  double deta = t0->eta()-t1->eta();
94  double dphi = t0->phi()-t1->phi();
95  if ( dphi> M_PI ) dphi-=2*M_PI;
96  if ( dphi<-M_PI ) dphi+=2*M_PI;
97  return std::sqrt( deta*deta + dphi*dphi );
98  }

◆ match() [1/2]

template<typename T , typename S = T>
virtual void BestMatcher< T, S >::match ( const std::vector< T * > &  ref,
const std::vector< S * > &  test 
)
inlinevirtualinherited

Definition at line 68 of file BestMatcher.h.

69  {
70  this->clear();
71 
72  std::map<int,int> matched = matcher( ref, test);
73 
74  std::map<int,int>::iterator mitr = matched.begin();
75  while ( mitr!=matched.end() ) {
76  this->mmatched.insert( typename TIDA::Associator<T,S>::map_type::value_type( ref[mitr->first], test[mitr->second]) );
77  this->mrevmatched.insert( typename TIDA::Associator<S,T>::map_type::value_type( test[mitr->second], ref[mitr->first] ) );
78  ++mitr;
79  }
80 
81  }

◆ match() [2/2]

virtual void TIDA::Associator< T, T >::match ( const std::vector< T * > &  s1,
const std::vector< S * > &  s2 
)
pure virtualinherited

◆ matched() [1/2]

const map_type& TIDA::Associator< T, T >::matched ( ) const
inlineinherited

Definition at line 59 of file TIDAAssociator.h.

59 { return mmatched; }

◆ matched() [2/2]

virtual const T * TIDA::Associator< T, T >::matched ( T *  t)
inlinevirtualinherited

Definition at line 45 of file TIDAAssociator.h.

45  {
46  typename map_type::const_iterator titr = mmatched.find(t);
47  if ( titr != mmatched.end() ) return titr->second;
48  else return 0;
49  }

◆ matcher()

template<typename T , typename S = T>
template<typename Tp , typename Tq >
std::map<int, int> BestMatcher< T, S >::matcher ( const std::vector< Tp * > &  ref,
const std::vector< Tq * > &  test 
)
inlineprotectedinherited

inserting into a multimatch sorts them into order as they are added so you get the list of best matches imediately NB: probably quicker to add them to a vector and then sort them afterward

now go through from best to worst, adding to another sorted set only the matches that do not use tracks already used by a better matching pair already found

set of unique track pairings NB: for some reason, using the multiset is faster than using a vector, even though we are only iterating through it later

hooray!! now print out the answer, make a map etc this isn't technically needed, could just use the set of "matched" objects, but hey ho

Definition at line 91 of file BestMatcher.h.

91  {
92 
98 
99  std::multiset<matched_> m;
100 
101  for (unsigned int i=0 ; i<ref.size() ; i++ ) {
102 
103  for (unsigned int j=0 ; j<test.size() ; j++ ) {
104  double d = distance(ref[i], test[j]);
105  if ( d<m_d ){
106  m.insert( matched_(d, i, j) );
107  }
108  }
109  }
110 
114 
115  std::vector<bool> refused( ref.size(), false );
116  std::vector<bool> testused( test.size(), false );
117 
122  std::multiset<matched_> unique;
123 
124  typename std::multiset<matched_>::iterator mitr = m.begin();
125 
126  double chi2 = 0;
127 
128  for ( ; mitr!=m.end() ; ++mitr ) {
129 
130  int rind = mitr->first();
131  int tind = mitr->second();
132 
133  if ( refused[rind] ) continue;
134  if ( testused[tind] ) continue;
135 
136  refused[rind] = true;
137  testused[tind] = true;
138 
139  unique.insert( *mitr );
140 
141  chi2 += (mitr->d()*mitr->d());
142 
143  }
144 
145 
146  // std::cout << "chi2 of matches " << chi2 << std::endl;
147 
151 
152  // std::cout << "\nmatched" << std::endl;
153 
154  std::map<int, int> matches;
155 
156 
157  mitr = unique.begin();
158  while ( mitr!=unique.end() ) {
159  matches.insert( std::map<int, int>::value_type( mitr->first(), mitr->second() ) );
160  // std::cout << "\tbest match " << *mitr << "\t" << ref[mitr->first()] << "\t" << test[mitr->second()] << std::endl;
161  ++mitr;
162  }
163 
164  return matches;
165 
166  }

◆ revmatched() [1/2]

const rmap_type& TIDA::Associator< T, T >::revmatched ( ) const
inlineinherited

Definition at line 60 of file TIDAAssociator.h.

60 { return mrevmatched; }

◆ revmatched() [2/2]

virtual const T* TIDA::Associator< T, T >::revmatched ( S *  t)
inlinevirtualinherited

Definition at line 52 of file TIDAAssociator.h.

52  {
53  typename rmap_type::const_iterator titr = mrevmatched.find(t);
54  if ( titr != mrevmatched.end() ) return titr->second;
55  else return 0;
56  }

◆ size()

unsigned TIDA::Associator< T, T >::size ( ) const
inlineinherited

Definition at line 66 of file TIDAAssociator.h.

66 { return mmatched.size(); }

Member Data Documentation

◆ m_d

template<typename T , typename S = T>
double BestMatcher< T, S >::m_d
protectedinherited

Definition at line 171 of file BestMatcher.h.

◆ mmatched

map_type TIDA::Associator< T, T >::mmatched
protectedinherited

Definition at line 73 of file TIDAAssociator.h.

◆ mname

std::string TIDA::Associator< T, T >::mname
protectedinherited

Definition at line 71 of file TIDAAssociator.h.

◆ mrevmatched

rmap_type TIDA::Associator< T, T >::mrevmatched
protectedinherited

Definition at line 74 of file TIDAAssociator.h.

The documentation for this class was generated from the following file:
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std::map< int, int > matcher(const std::vector< Tp * > &ref, const std::vector< Tq * > &test)
Definition: BestMatcher.h:91
BestMatcher::distance
virtual double distance(const T *t0, const S *t1) const =0
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void clear()
Definition: TIDAAssociator.h:63
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Associator_BestDeltaRMatcher::Associator_BestDeltaRMatcher
Associator_BestDeltaRMatcher(const std::string &name, double d)
Definition: Associator_BestMatch.h:84
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rmap_type mrevmatched
Definition: TIDAAssociator.h:74
BestMatcher::m_d
double m_d
Definition: BestMatcher.h:171
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