1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright held by original author
7 -------------------------------------------------------------------------------
9 This file is part of OpenFOAM.
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13 Free Software Foundation; either version 2 of the License, or (at your
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26 Foam::quadraticLinearFitPolynomial
29 Quadratic/linear polynomial for interpolation fitting:
30 quadratic normal to the face,
31 linear in the plane of the face for consistency with 2nd-order Gauss.
33 Can be used with the CentredFit scheme to create a quadratic surface
36 \*---------------------------------------------------------------------------*/
38 #ifndef quadraticLinearFitPolynomial_H
39 #define quadraticLinearFitPolynomial_H
43 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
48 /*---------------------------------------------------------------------------*\
49 Class quadraticLinearFitPolynomial Declaration
50 \*---------------------------------------------------------------------------*/
52 class quadraticLinearFitPolynomial
58 static label nTerms(const direction dim)
76 register label curIdx = 0;
78 coeffs[curIdx++] = weight;
79 coeffs[curIdx++] = weight*d.x();
80 coeffs[curIdx++] = weight*sqr(d.x());
84 coeffs[curIdx++] = weight*d.y();
85 coeffs[curIdx++] = weight*d.x()*d.y();
89 coeffs[curIdx++] = weight*d.z();
90 coeffs[curIdx++] = weight*d.x()*d.z();
96 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
98 } // End namespace Foam
100 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
104 // ************************************************************************* //