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1 // 1 //
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18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
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25 // 25 //
26 // 26 //
>> 27 // $Id: G4RDLinInterpolation.cc 107396 2017-11-10 08:28:08Z gcosmo $
>> 28 // GEANT4 tag $Name: geant4-09-01-ref-00 $
27 // 29 //
28 // Author: Maria Grazia Pia (Maria.Grazia.Pia@ 30 // Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
29 // 31 //
30 // History: 32 // History:
31 // ----------- 33 // -----------
32 // 31 Jul 2001 MGP Created 34 // 31 Jul 2001 MGP Created
33 // 35 //
34 // ------------------------------------------- 36 // -------------------------------------------------------------------
35 37
36 #include "G4RDLinInterpolation.hh" 38 #include "G4RDLinInterpolation.hh"
37 39
38 // Constructor 40 // Constructor
39 41
40 G4RDLinInterpolation::G4RDLinInterpolation() 42 G4RDLinInterpolation::G4RDLinInterpolation()
41 { } 43 { }
42 44
43 // Destructor 45 // Destructor
44 46
45 G4RDLinInterpolation::~G4RDLinInterpolation() 47 G4RDLinInterpolation::~G4RDLinInterpolation()
46 { } 48 { }
47 49
48 50
49 G4RDVDataSetAlgorithm* G4RDLinInterpolation::C 51 G4RDVDataSetAlgorithm* G4RDLinInterpolation::Clone() const
50 { return new G4RDLinInterpolation; } 52 { return new G4RDLinInterpolation; }
51 53
52 G4double G4RDLinInterpolation::Calculate(G4dou 54 G4double G4RDLinInterpolation::Calculate(G4double x, G4int bin,
53 const G4DataVector& points, 55 const G4DataVector& points,
54 const G4DataVector& data) const 56 const G4DataVector& data) const
55 { 57 {
56 G4int nBins = data.size() - 1; 58 G4int nBins = data.size() - 1;
57 G4double value = 0.; 59 G4double value = 0.;
58 if (x < points[0]) 60 if (x < points[0])
59 { 61 {
60 value = 0.; 62 value = 0.;
61 } 63 }
62 else if (bin < nBins) 64 else if (bin < nBins)
63 { 65 {
64 G4double e1 = points[bin]; 66 G4double e1 = points[bin];
65 G4double e2 = points[bin+1]; 67 G4double e2 = points[bin+1];
66 G4double d1 = data[bin]; 68 G4double d1 = data[bin];
67 G4double d2 = data[bin+1]; 69 G4double d2 = data[bin+1];
68 value = d1 + (d2 - d1)*(x - e1)/(e2 - e1 70 value = d1 + (d2 - d1)*(x - e1)/(e2 - e1);
69 } 71 }
70 else 72 else
71 { 73 {
72 value = data[nBins]; 74 value = data[nBins];
73 } 75 }
74 return value; 76 return value;
75 } 77 }
76 78