biLinearFitPolynomial.H
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5  \\ / A nd | www.openfoam.com
6  \\/ M anipulation |
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25 
26 Class
27  Foam::biLinearFitPolynomial
28 
29 Description
30  BiLinear polynomial for interpolation fitting.
31 
32  Can be used with the CentredFit scheme to create a biLinear surface
33  interpolation scheme
34 
35 \*---------------------------------------------------------------------------*/
36 
37 #ifndef biLinearFitPolynomial_H
38 #define biLinearFitPolynomial_H
39 
40 #include "vector.H"
41 
42 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
43 
44 namespace Foam
45 {
46 
47 /*---------------------------------------------------------------------------*\
48  Class biLinearFitPolynomial Declaration
49 \*---------------------------------------------------------------------------*/
50 
52 {
53 public:
54 
55  // Member functions
56 
57  static label nTerms(const direction dim)
58  {
59  return
60  (
61  dim == 1 ? 2 :
62  dim == 2 ? 4 :
63  dim == 3 ? 6 : 0
64  );
65  }
66 
67  static void addCoeffs
68  (
69  scalar* coeffs,
70  const vector& d,
71  const scalar weight,
72  const direction dim
73  )
74  {
75  label curIdx = 0;
76 
77  coeffs[curIdx++] = weight;
78  coeffs[curIdx++] = weight*d.x();
79 
80  if (dim >= 2)
81  {
82  coeffs[curIdx++] = weight*d.y();
83  coeffs[curIdx++] = weight*d.x()*d.y();
84  }
85  if (dim == 3)
86  {
87  coeffs[curIdx++] = weight*d.z();
88  coeffs[curIdx++] = weight*d.x()*d.z();
89  }
90  }
91 };
92 
93 
94 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
95 
96 } // End namespace Foam
97 
98 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
99 
100 #endif
101 
102 // ************************************************************************* //
Foam::Vector::x
const Cmpt & x() const
Access to the vector x component.
Definition: VectorI.H:73
Foam::Vector::z
const Cmpt & z() const
Access to the vector z component.
Definition: VectorI.H:85
Foam::biLinearFitPolynomial
BiLinear polynomial for interpolation fitting.
Definition: biLinearFitPolynomial.H:50
Foam
Namespace for OpenFOAM.
Definition: atmBoundaryLayer.C:33
Foam::Vector::y
const Cmpt & y() const
Access to the vector y component.
Definition: VectorI.H:79
Foam::biLinearFitPolynomial::nTerms
static label nTerms(const direction dim)
Definition: biLinearFitPolynomial.H:56
Foam::Vector< scalar >
Foam::biLinearFitPolynomial::addCoeffs
static void addCoeffs(scalar *coeffs, const vector &d, const scalar weight, const direction dim)
Definition: biLinearFitPolynomial.H:67
Foam::direction
uint8_t direction
Definition: direction.H:52
vector.H