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0ca57c2f | 1 | ////////////////////////////////////////////////////////////////////////// |
2 | // Matt.Dobbs@Cern.CH, January 2000 | |
3 | // particle's flow object | |
4 | ////////////////////////////////////////////////////////////////////////// | |
5 | ||
6 | #include "HepMC/Flow.h" | |
7 | #include "HepMC/GenParticle.h" | |
8 | #include "HepMC/GenVertex.h" | |
9 | #include "HepMC/SearchVector.h" | |
10 | ||
11 | namespace HepMC { | |
12 | ||
13 | Flow::Flow( GenParticle* particle_owner ) | |
14 | : m_particle_owner(particle_owner) | |
15 | {} | |
16 | ||
17 | Flow::Flow( const Flow& inflow ) : | |
18 | m_particle_owner(inflow.m_particle_owner), | |
19 | m_icode(inflow.m_icode) | |
20 | { | |
21 | /// copies both the m_icode AND the m_particle_owner | |
22 | } | |
23 | ||
24 | Flow::~Flow() { | |
25 | m_icode.clear(); | |
26 | } | |
27 | ||
28 | void Flow::swap( Flow & other) | |
29 | { | |
30 | std::swap( m_particle_owner, other.m_particle_owner ); | |
31 | m_icode.swap( other.m_icode ); | |
32 | } | |
33 | ||
34 | void Flow::print( std::ostream& ostr ) const { | |
35 | ostr << "Flow(" << m_particle_owner << "): " << *this << std::endl; | |
36 | } | |
37 | ||
38 | std::vector<GenParticle*> Flow::connected_partners( int code, int code_index, | |
39 | int num_indices ) const { | |
40 | /// Returns all flow partners which have "code" in any of the | |
41 | /// num_indices beginning with index code_index. | |
42 | /// m_particle_owner is included in the result. | |
43 | /// Return is by value since the set should never be very big. | |
44 | /// EXAMPLE: if you want to find all flow partners that have the same | |
45 | /// code in indices 2,3,4 as particle p has in index 2, you would use: | |
46 | /// set<GenParticle*> result = | |
47 | /// p->flow().connected_partners(p->flow().icode(2),2,3); | |
48 | // | |
49 | std::vector<GenParticle*> output; | |
50 | for ( int i = code_index; i!=code_index+num_indices; ++i ) { | |
51 | if ( icode(i)==code ) { | |
52 | output.push_back(m_particle_owner); | |
53 | connected_partners( &output, code, code_index, num_indices ); | |
54 | break; | |
55 | } | |
56 | } | |
57 | return output; | |
58 | } | |
59 | ||
60 | void Flow::connected_partners( std::vector<HepMC::GenParticle*>* output, int code, | |
61 | int code_index, int num_indices ) const | |
62 | { | |
63 | /// protected: for recursive use by Flow::connected_partners() | |
64 | // | |
65 | if ( !m_particle_owner ) return; // nothing to do | |
66 | // look for connected partners joined to this m_particle_owner | |
67 | // through its end_vertex | |
68 | if ( m_particle_owner->end_vertex() ) { | |
69 | for ( GenVertex::particle_iterator p | |
70 | = m_particle_owner->end_vertex()->particles_begin(family); | |
71 | p != m_particle_owner->end_vertex()->particles_end(family); | |
72 | ++p ) { | |
73 | // if the particle has the correct flow code and is not yet in | |
74 | // the set, then we recursively call connected_partners | |
75 | for ( int index = code_index; index!=code_index+num_indices; | |
76 | ++index ){ | |
77 | if ( (*p)->flow(index)==code && not_in_vector(output,(*p)) ) { | |
78 | output->push_back(*p); | |
79 | (*p)->flow().connected_partners( output, code, | |
80 | code_index, | |
81 | num_indices ); | |
82 | } | |
83 | } | |
84 | } | |
85 | } | |
86 | // same for production_vertex | |
87 | if ( m_particle_owner->production_vertex() ) { | |
88 | for ( GenVertex::particle_iterator p | |
89 | = m_particle_owner->production_vertex()-> | |
90 | particles_begin( family ); | |
91 | p != m_particle_owner->production_vertex()-> | |
92 | particles_end( family ); ++p ) { | |
93 | // if the particle has the correct flow code and is not yet in | |
94 | // the set, then we recursively call connected_partners | |
95 | for ( int index = code_index; index!=code_index+num_indices; | |
96 | ++index ){ | |
97 | if ( (*p)->flow(index)==code && not_in_vector(output,(*p)) ) { | |
98 | output->push_back(*p); | |
99 | (*p)->flow().connected_partners( output, code, | |
100 | code_index, | |
101 | num_indices ); | |
102 | } | |
103 | } | |
104 | } | |
105 | } | |
106 | } | |
107 | ||
108 | std::vector<GenParticle*> Flow::dangling_connected_partners( int code, | |
109 | int code_index, int num_indices ) const { | |
110 | std::vector<GenParticle*> output; | |
111 | std::vector<GenParticle*> visited_particles; | |
112 | for ( int i = code_index; i!=code_index+num_indices; ++i ) { | |
113 | if ( icode(i)==code ) { | |
114 | visited_particles.push_back(m_particle_owner); | |
115 | dangling_connected_partners( &output, &visited_particles, code, | |
116 | code_index, num_indices ); | |
117 | break; | |
118 | } | |
119 | } | |
120 | return output; | |
121 | } | |
122 | ||
123 | void Flow::dangling_connected_partners( std::vector<HepMC::GenParticle*>* output, | |
124 | std::vector<HepMC::GenParticle*>* | |
125 | visited_particles, | |
126 | int code, int code_index, | |
127 | int num_indices ) const | |
128 | { | |
129 | /// protected: for recursive use by Flow::dangling_connected_partners | |
130 | // | |
131 | if ( !m_particle_owner ) return; // nothing to do | |
132 | int count_partners = 0; | |
133 | // look for connected partners joined to this m_particle_owner | |
134 | // through its end_vertex | |
135 | if ( m_particle_owner->end_vertex() ) { | |
136 | for ( GenVertex::particle_iterator p | |
137 | = m_particle_owner->end_vertex()->particles_begin(family); | |
138 | p != m_particle_owner->end_vertex()->particles_end(family); | |
139 | ++p ) { | |
140 | // if the particle has the correct flow code and is not yet in | |
141 | // the set, then we recursively call connected_partners | |
142 | for ( int index = code_index; index!=code_index+num_indices; | |
143 | ++index ){ | |
144 | if ( (*p)->flow(index)==code ) { | |
145 | if ( *p!=m_particle_owner ) ++count_partners; | |
146 | if ( not_in_vector(visited_particles,(*p)) ) { | |
147 | visited_particles->push_back(*p); | |
148 | (*p)->flow().dangling_connected_partners( output, | |
149 | visited_particles, code, | |
150 | code_index, num_indices ); | |
151 | ||
152 | } | |
153 | } | |
154 | } | |
155 | } | |
156 | } | |
157 | // same for production_vertex | |
158 | if ( m_particle_owner->production_vertex() ) { | |
159 | for ( GenVertex::particle_iterator p = m_particle_owner-> | |
160 | production_vertex()-> | |
161 | particles_begin( family ); | |
162 | p != m_particle_owner->production_vertex()-> | |
163 | particles_end( family ); | |
164 | ++p ) { | |
165 | // if the particle has the correct flow code and is not yet in | |
166 | // the set, then we recursively call connected_partners | |
167 | for ( int index = code_index; index!=code_index+num_indices; | |
168 | ++index ){ | |
169 | if ( (*p)->flow(index)==code ) { | |
170 | if ( *p!=m_particle_owner ) ++count_partners; | |
171 | if ( not_in_vector(visited_particles,(*p)) ) { | |
172 | visited_particles->push_back(*p); | |
173 | (*p)->flow().dangling_connected_partners( output, | |
174 | visited_particles, code, | |
175 | code_index, num_indices ); | |
176 | ||
177 | } | |
178 | } | |
179 | } | |
180 | } | |
181 | } | |
182 | if ( count_partners <= 1 ) output->push_back( m_particle_owner ); | |
183 | } | |
184 | ||
185 | ///////////// | |
186 | // Friends // | |
187 | ///////////// | |
188 | ||
189 | /// send Flow informatin to ostr for printing | |
190 | std::ostream& operator<<( std::ostream& ostr, const Flow& f ) { | |
191 | ostr << f.m_icode.size(); | |
192 | for ( std::map<int,int>::const_iterator i = f.m_icode.begin(); | |
193 | i != f.m_icode.end(); ++i ) { | |
194 | ostr << " " << (*i).first << " " << (*i).second; | |
195 | } | |
196 | return ostr; | |
197 | } | |
198 | ||
199 | } // HepMC | |
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