Geant4_10
G4PhysicsOrderedFreeVector.cc
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27 // $Id: G4PhysicsOrderedFreeVector.cc 74256 2013-10-02 14:24:02Z gcosmo $
28 //
30 // PhysicsOrderedFreeVector Class Implementation
32 //
33 // File: G4PhysicsOrderedFreeVector.cc
34 // Version: 2.0
35 // Created: 1996-08-13
36 // Author: Juliet Armstrong
37 // Updated: 1997-03-25 by Peter Gumplinger
38 // > cosmetics (only)
39 // 1998-11-11 by Peter Gumplinger
40 // > initialize all data members of the base class in
41 // derived class constructors
42 // 2000-11-11 by H.Kurashige
43 // > use STL vector for dataVector and binVector
44 // 2009-06-19 by V.Ivanchenko
45 // > removed hidden bin
46 // 2013-10-02 by V.Ivanchenko removed FindBinLocation
47 //
48 // mail: gum@triumf.ca
49 //
51 
53 
55 // Class Implementation
57 
59  // Constructors
61 
63  G4double *Values,
64  size_t VectorLength)
65  : G4PhysicsVector()
66 {
68 
69  for (size_t i = 0 ; i < VectorLength ; i++)
70  {
71  InsertValues(Energies[i], Values[i]);
72  }
73 }
74 
76  : G4PhysicsVector()
77 {
79 }
80 
82  // Destructors
84 
86 
88  // Methods
90 
92 {
93  std::vector<G4double>::iterator binLoc =
94  std::lower_bound(binVector.begin(), binVector.end(), energy);
95 
96  size_t binIdx = binLoc - binVector.begin(); // Iterator difference!
97 
98  std::vector<G4double>::iterator dataLoc = dataVector.begin() + binIdx;
99 
100  binVector.insert(binLoc, energy);
101  dataVector.insert(dataLoc, value);
102 
103  numberOfNodes++;
104  edgeMin = binVector.front();
105  edgeMax = binVector.back();
106 }
107 
109 {
110 
111  if (aValue <= GetMinValue()) {
112  return GetMinLowEdgeEnergy();
113  } else if (aValue >= GetMaxValue()) {
114  return GetMaxLowEdgeEnergy();
115  } else {
116  size_t closestBin = FindValueBinLocation(aValue);
117  G4double theEnergy = LinearInterpolationOfEnergy(aValue, closestBin);
118 
119  return theEnergy;
120  }
121 }
122 
123 size_t G4PhysicsOrderedFreeVector::FindValueBinLocation(G4double aValue)
124 {
125  G4int n1 = 0;
126  G4int n2 = numberOfNodes/2;
127  G4int n3 = numberOfNodes - 1;
128  while (n1 != n3 - 1) {
129  if (aValue > dataVector[n2])
130  { n1 = n2; }
131  else
132  { n3 = n2; }
133  n2 = n1 + (n3 - n1 + 1)/2;
134  }
135  return (size_t)n1;
136 }
137 
138 G4double G4PhysicsOrderedFreeVector::LinearInterpolationOfEnergy(G4double aValue,
139  size_t theLocBin)
140 {
141  G4double intplFactor = (aValue-dataVector[theLocBin])
142  / (dataVector[theLocBin+1]-dataVector[theLocBin]); // Interpolation factor
143 
144  return binVector[theLocBin] +
145  ( binVector[theLocBin+1]-binVector[theLocBin] ) * intplFactor;
146 }
147 
G4PVDataVector dataVector
void InsertValues(G4double energy, G4double value)
int G4int
Definition: G4Types.hh:78
G4PVDataVector binVector
double energy
Definition: plottest35.C:25
G4PhysicsVectorType type
G4double GetEnergy(G4double aValue)
const XML_Char int const XML_Char * value
Definition: expat.h:331
double G4double
Definition: G4Types.hh:76