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G4CrossSectionComposite.cc
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25 //
26 //
27 // -------------------------------------------------------------------
28 // GEANT4 Class file
29 //
30 // For information related to this code contact:
31 //
32 // File name: G4CrossSectionComposite
33 //
34 // Author:
35 //
36 // Creation date: 15 April 1999
37 //
38 // Modifications:
39 //
40 // -------------------------------------------------------------------
41 
42 #include "globals.hh"
44 #include "G4VCrossSectionSource.hh"
45 #include "G4KineticTrack.hh"
46 #include "G4CrossSectionVector.hh"
47 
49 { }
50 
51 
53 { }
54 
55 
57 {
58  return (this == (G4CrossSectionComposite*) &right);
59 }
60 
61 
63 {
64  return (this != (G4CrossSectionComposite*) &right);
65 }
66 
67 
69  const G4KineticTrack& trk2) const
70 {
71  // Cross section of composite is the sum of components cross sections
72 
73  G4double crossSection = 0.;
74  G4double ecm = (trk1.Get4Momentum() + trk2.Get4Momentum()).mag();
75 
77  if (components != 0)
78  {
79  G4int nComponents = this->GetComponents()->size();
80 // G4int nValid = 0;
81 
82  G4int i;
83  for (i=0; i<nComponents; i++)
84  {
85  G4CrossSectionSourcePtr componentPtr = (*components)[i];
86  G4VCrossSectionSource* component = componentPtr();
87  if (component->IsValid(ecm))
88  {
89  crossSection += component->CrossSection(trk1,trk2);
90  }
91  }
92  }
93 
94  return crossSection;
95 }
96 
97 
99 {
100  // The composite is valid if any of its components are valid
101  G4bool answer = false;
103  if (components != 0)
104  {
105  G4int n = components->size();
106  G4int i;
107  for (i=0; i<n; i++)
108  {
109  G4CrossSectionSourcePtr componentPtr = (*components)[i];
110  G4VCrossSectionSource* component = componentPtr();
111  if (component->IsValid(e))
112  {
113  answer = true;
114  break;
115  }
116  }
117  }
118  return answer;
119 }
120