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
22 along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
25 Foam::quadraticLinearFitPolynomial
28 Quadratic/linear polynomial for interpolation fitting:
29 quadratic normal to the face,
30 linear in the plane of the face for consistency with 2nd-order Gauss.
32 Can be used with the CentredFit scheme to create a quadratic surface
35 \*---------------------------------------------------------------------------*/
37 #ifndef quadraticLinearFitPolynomial_H
38 #define quadraticLinearFitPolynomial_H
42 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
47 /*---------------------------------------------------------------------------*\
48 Class quadraticLinearFitPolynomial Declaration
49 \*---------------------------------------------------------------------------*/
51 class quadraticLinearFitPolynomial
57 static label nTerms(const direction dim)
75 register label curIdx = 0;
77 coeffs[curIdx++] = weight;
78 coeffs[curIdx++] = weight*d.x();
79 coeffs[curIdx++] = weight*sqr(d.x());
83 coeffs[curIdx++] = weight*d.y();
84 coeffs[curIdx++] = weight*d.x()*d.y();
88 coeffs[curIdx++] = weight*d.z();
89 coeffs[curIdx++] = weight*d.x()*d.z();
95 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
97 } // End namespace Foam
99 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
103 // ************************************************************************* //