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Comparing UserCode/MitAna/DataTree/src/MCParticle.cc (file contents):
Revision 1.2 by loizides, Fri Nov 21 20:15:02 2008 UTC vs.
Revision 1.4 by loizides, Mon Nov 24 14:11:47 2008 UTC

# Line 9 | Line 9 | using namespace mithep;
9   //--------------------------------------------------------------------------------------------------
10   Double_t MCParticle::Charge() const
11   {
12 <  // Get charge from pdg lookup/
12 >  // Get charge from pdg lookup.
13  
14    TParticlePDG* pdgEntry = PdgEntry();
15    if (pdgEntry)
# Line 21 | Line 21 | Double_t MCParticle::Charge() const
21   }
22  
23   //--------------------------------------------------------------------------------------------------
24 + const MCParticle *MCParticle::FindDaughter(Int_t pid,
25 +                                           Bool_t checkCharge, const MCParticle *start) const
26 + {
27 +  // Return daughter with given pid. If checkCharge is false then just the type of particle is
28 +  // checked (ie particle and anti-particle). If start is not null, start searching from
29 +  // this daughter.
30 +
31 +  UInt_t i = 0;
32 +  if (start) {
33 +    for (; i<NDaughters(); ++i) {
34 +      if (Daughter(i)==start) {
35 +        ++i;
36 +        break;
37 +      }
38 +    }
39 +    return 0;
40 +  }
41 +
42 +  for (UInt_t j=i; j<NDaughters(); ++j) {
43 +    if (Daughter(j)->Is(pid,checkCharge))
44 +      return Daughter(j);
45 +  }
46 +
47 +  return 0;
48 + }
49 +
50 + //--------------------------------------------------------------------------------------------------
51 + const MCParticle *MCParticle::FindMother(Int_t pid, Bool_t checkCharge) const
52 + {
53 +  // Return mother with given pid. If checkCharge is false then just the type of particle is
54 +  // checked (ie particle and anti-particle).
55 +
56 +  const MCParticle *mother = Mother();
57 +  if (!mother)
58 +    return 0;
59 +  
60 +  if (checkCharge) {
61 +    while (mother && mother->PdgId()!=pid)
62 +      mother = mother->Mother();
63 +    return mother;
64 +  }
65 +
66 +  Int_t apid = pid>0?pid:-pid;
67 +  while (mother && mother->AbsPdgId()!=apid)
68 +    mother = mother->Mother();
69 +
70 +  return mother;
71 + }
72 +
73 + //--------------------------------------------------------------------------------------------------
74   void MCParticle::Print(Option_t *opt) const
75   {
76    // Print particle kinematics. In case option "l" is given then also print info about daughters.

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