Geant4 10.7.0
Toolkit for the simulation of the passage of particles through matter
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G4ParticleHPInterpolator.hh
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25//
26//
27// 080809 Change interpolation scheme of "histogram", now using LinearLinear
28// For multidimensional interpolations By T. Koi
29//
30// P. Arce, June-2014 Conversion neutron_hp to particle_hp
31//
32#ifndef G4ParticleHPInterpolator_h
33#define G4ParticleHPInterpolator_h 1
34
35#include "globals.hh"
36#include "G4InterpolationScheme.hh"
37#include "Randomize.hh"
38#include "G4ios.hh"
39#include "G4Exp.hh"
40#include "G4Log.hh"
41#include "G4HadronicException.hh"
42
43
44class G4ParticleHPInterpolator
45{
46 public:
47
48 G4ParticleHPInterpolator(){}
49 ~G4ParticleHPInterpolator()
50 {
51 // G4cout <<"deleted the interpolator"<<G4endl;
52 }
53
54 inline G4double Lin(G4double x,G4double x1,G4double x2,G4double y1,G4double y2)
55 {
56 G4double slope=0, off=0;
57 if(x2-x1==0) return (y2+y1)/2.;
58 slope = (y2-y1)/(x2-x1);
59 off = y2-x2*slope;
60 G4double y = x*slope+off;
61 return y;
62 }
63
64 inline G4double Interpolate(G4InterpolationScheme aScheme,
65 G4double x, G4double x1, G4double x2,
66 G4double y1, G4double y2) const;
67 inline G4double Interpolate2(G4InterpolationScheme aScheme,
68 G4double x, G4double x1, G4double x2,
69 G4double y1, G4double y2) const;
70
71 G4double
72 GetBinIntegral(const G4InterpolationScheme & aScheme,
73 const G4double x1,const G4double x2,const G4double y1,const G4double y2);
74
75 G4double
76 GetWeightedBinIntegral(const G4InterpolationScheme & aScheme,
77 const G4double x1,const G4double x2,const G4double y1,const G4double y2);
78
79 private:
80
81 inline G4double Histogram(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const;
82 inline G4double LinearLinear(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const;
83 inline G4double LinearLogarithmic(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const;
84 inline G4double LogarithmicLinear(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const;
85 inline G4double LogarithmicLogarithmic(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const;
86 inline G4double Random(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const;
87
88};
89
90inline G4double G4ParticleHPInterpolator::
91Interpolate(G4InterpolationScheme aScheme,
92 G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const
93{
94 G4double result(0);
95 G4int theScheme = aScheme;
96 theScheme = theScheme%CSTART_;
97 switch(theScheme)
98 {
99 case 1:
100 //080809
101 //result = Histogram(x, x1, x2, y1, y2);
102 result = LinearLinear(x, x1, x2, y1, y2);
103 break;
104 case 2:
105 result = LinearLinear(x, x1, x2, y1, y2);
106 break;
107 case 3:
108 result = LinearLogarithmic(x, x1, x2, y1, y2);
109 break;
110 case 4:
111 result = LogarithmicLinear(x, x1, x2, y1, y2);
112 break;
113 case 5:
114 result = LogarithmicLogarithmic(x, x1, x2, y1, y2);
115 break;
116 case 6:
117 result = Random(x, x1, x2, y1, y2);
118 break;
119 default:
120 G4cout << "theScheme = "<<theScheme<<G4endl;
121 throw G4HadronicException(__FILE__, __LINE__, "G4ParticleHPInterpolator::Carthesian Invalid InterpolationScheme");
122 break;
123 }
124 return result;
125}
126
127inline G4double G4ParticleHPInterpolator::
128Interpolate2(G4InterpolationScheme aScheme,
129 G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const
130{
131 G4double result(0);
132 G4int theScheme = aScheme;
133 theScheme = theScheme%CSTART_;
134 switch(theScheme)
135 {
136 case 1:
137 result = Histogram(x, x1, x2, y1, y2);
138 break;
139 case 2:
140 result = LinearLinear(x, x1, x2, y1, y2);
141 break;
142 case 3:
143 result = LinearLogarithmic(x, x1, x2, y1, y2);
144 break;
145 case 4:
146 result = LogarithmicLinear(x, x1, x2, y1, y2);
147 break;
148 case 5:
149 result = LogarithmicLogarithmic(x, x1, x2, y1, y2);
150 break;
151 case 6:
152 result = Random(x, x1, x2, y1, y2);
153 break;
154 default:
155 G4cout << "theScheme = "<<theScheme<<G4endl;
156 throw G4HadronicException(__FILE__, __LINE__, "G4ParticleHPInterpolator::Carthesian Invalid InterpolationScheme");
157 break;
158 }
159 return result;
160}
161
162inline G4double G4ParticleHPInterpolator::
163Histogram(G4double , G4double , G4double , G4double y1, G4double ) const
164{
165 G4double result;
166 result = y1;
167 return result;
168}
169
170inline G4double G4ParticleHPInterpolator::
171LinearLinear(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const
172{
173 G4double slope=0, off=0;
174 if(x2-x1==0) return (y2+y1)/2.;
175 slope = (y2-y1)/(x2-x1);
176 off = y2-x2*slope;
177 G4double y = x*slope+off;
178 return y;
179}
180
181inline G4double G4ParticleHPInterpolator::
182LinearLogarithmic(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const
183{
184 G4double result;
185 if(x==0) result = y1+y2/2.;
186 else if(x1==0) result = y1;
187 else if(x2==0) result = y2;
188 else result = LinearLinear(G4Log(x), G4Log(x1), G4Log(x2), y1, y2);
189 return result;
190}
191
192inline G4double G4ParticleHPInterpolator::
193LogarithmicLinear(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const
194{
195 G4double result;
196 if(y1==0||y2==0) result = 0;
197 else
198 {
199 result = LinearLinear(x, x1, x2, G4Log(y1), G4Log(y2));
200 result = G4Exp(result);
201 }
202 return result;
203}
204
205inline G4double G4ParticleHPInterpolator::
206LogarithmicLogarithmic(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const
207{
208 if(x==0) return y1+y2/2.;
209 else if(x1==0) return y1;
210 else if(x2==0) return y2;
211 G4double result;
212 if(y1==0||y2==0) result = 0;
213 else
214 {
215 result = LinearLinear(G4Log(x), G4Log(x1), G4Log(x2), G4Log(y1), G4Log(y2));
216 result = G4Exp(result);
217 }
218 return result;
219}
220
221inline G4double G4ParticleHPInterpolator::
222Random(G4double , G4double , G4double , G4double y1, G4double y2) const
223{
224 G4double result;
225 result = y1+G4UniformRand()*(y2-y1);
226 return result;
227}
228
229#endif
G4Exp
G4double G4Exp(G4double initial_x)
Exponential Function double precision.
Definition: G4Exp.hh:179
G4InterpolationScheme
G4InterpolationScheme
Definition: G4InterpolationScheme.hh:38
G4Log
G4double G4Log(G4double x)
Definition: G4Log.hh:226
G4double
double G4double
Definition: G4Types.hh:83
G4int
int G4int
Definition: G4Types.hh:85
G4endl
#define G4endl
Definition: G4ios.hh:57
G4cout
G4GLOB_DLL std::ostream G4cout
G4UniformRand
#define G4UniformRand()
Definition: Randomize.hh:52
G4ParticleHPInterpolator::Interpolate
G4double Interpolate(G4InterpolationScheme aScheme, G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const
Definition: G4ParticleHPInterpolator.hh:91
G4ParticleHPInterpolator::GetWeightedBinIntegral
G4double GetWeightedBinIntegral(const G4InterpolationScheme &aScheme, const G4double x1, const G4double x2, const G4double y1, const G4double y2)
Definition: G4ParticleHPInterpolator.cc:97
G4ParticleHPInterpolator::Interpolate2
G4double Interpolate2(G4InterpolationScheme aScheme, G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const
Definition: G4ParticleHPInterpolator.hh:128
G4ParticleHPInterpolator::Lin
G4double Lin(G4double x, G4double x1, G4double x2, G4double y1, G4double y2)
Definition: G4ParticleHPInterpolator.hh:54
G4ParticleHPInterpolator::GetBinIntegral
G4double GetBinIntegral(const G4InterpolationScheme &aScheme, const G4double x1, const G4double x2, const G4double y1, const G4double y2)
Definition: G4ParticleHPInterpolator.cc:36