1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
7 -------------------------------------------------------------------------------
9 This file is part of OpenFOAM.
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12 under the terms of the GNU General Public License as published by
13 the Free Software Foundation, either version 3 of the License, or
14 (at your option) any later version.
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18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
21 You should have received a copy of the GNU General Public License
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25 Foam::quadraticFitPolynomial
28 Quadratic polynomial for centred interpolation fitting.
30 Can be used with the CentredFit scheme to create a quadratic surface
33 \*---------------------------------------------------------------------------*/
35 #ifndef quadraticFitPolynomial_H
36 #define quadraticFitPolynomial_H
40 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
45 /*---------------------------------------------------------------------------*\
46 Class quadraticFitPolynomial Declaration
47 \*---------------------------------------------------------------------------*/
49 class quadraticFitPolynomial
55 static label nTerms(const direction dim)
73 register label curIdx = 0;
75 coeffs[curIdx++] = weight;
76 coeffs[curIdx++] = weight*d.x();
77 coeffs[curIdx++] = weight*sqr(d.x());
81 coeffs[curIdx++] = weight*d.y();
82 coeffs[curIdx++] = weight*d.x()*d.y();
83 coeffs[curIdx++] = weight*sqr(d.y());
87 coeffs[curIdx++] = weight*d.z();
88 coeffs[curIdx++] = weight*d.x()*d.z();
89 coeffs[curIdx++] = weight*sqr(d.z());
95 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
97 } // End namespace Foam
99 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
103 // ************************************************************************* //