| /*---------------------------------------------------------------------------*\ | |
| ========= | | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | |
| \\ / O peration | Website: https://openfoam.org | |
| \\ / A nd | Copyright (C) 2011-2021 OpenFOAM Foundation | |
| \\/ M anipulation | | |
| ------------------------------------------------------------------------------- | |
| License | |
| This file is part of OpenFOAM. | |
| OpenFOAM is free software: you can redistribute it and/or modify it | |
| under the terms of the GNU General Public License as published by | |
| the Free Software Foundation, either version 3 of the License, or | |
| (at your option) any later version. | |
| OpenFOAM is distributed in the hope that it will be useful, but WITHOUT | |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| for more details. | |
| You should have received a copy of the GNU General Public License | |
| along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>. | |
| Class | |
| Foam::Tensor2D | |
| Description | |
| Templated 2D tensor derived from VectorSpace adding construction from | |
| 4 components, element access using xx(), xy(), yx() and yy() member | |
| functions and the iner-product (dot-product) and outer-product of two | |
| Vector2Ds (tensor-product) operators. | |
| SourceFiles | |
| Tensor2DI.H | |
| \*---------------------------------------------------------------------------*/ | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| namespace Foam | |
| { | |
| template<class Cmpt> | |
| class SymmTensor2D; | |
| /*---------------------------------------------------------------------------*\ | |
| Class Tensor2D Declaration | |
| \*---------------------------------------------------------------------------*/ | |
| template<class Cmpt> | |
| class Tensor2D | |
| : | |
| public VectorSpace<Tensor2D<Cmpt>, Cmpt, 4> | |
| { | |
| public: | |
| //- Equivalent type of labels used for valid component indexing | |
| typedef Tensor2D<label> labelType; | |
| // Member constants | |
| //- Rank of Tensor2D is 2 | |
| static const direction rank = 2; | |
| // Static Data Members | |
| static const Tensor2D I; | |
| //- Component labeling enumeration | |
| enum components { XX, XY, YX, YY }; | |
| // Constructors | |
| //- Construct null | |
| inline Tensor2D(); | |
| //- Construct initialised to zero | |
| inline Tensor2D(const Foam::zero); | |
| //- Construct given VectorSpace | |
| inline Tensor2D(const VectorSpace<Tensor2D<Cmpt>, Cmpt, 4>&); | |
| //- Construct given SymmTensor2D | |
| inline Tensor2D(const SymmTensor2D<Cmpt>&); | |
| //- Construct given SphericalTensor2D | |
| inline Tensor2D(const SphericalTensor2D<Cmpt>&); | |
| //- Construct given the two vectors | |
| inline Tensor2D | |
| ( | |
| const Vector2D<Cmpt>& x, | |
| const Vector2D<Cmpt>& y | |
| ); | |
| //- Construct given the four components | |
| inline Tensor2D | |
| ( | |
| const Cmpt txx, const Cmpt txy, | |
| const Cmpt tyx, const Cmpt tyy | |
| ); | |
| //- Construct from Istream | |
| Tensor2D(Istream&); | |
| // Member Functions | |
| // Access | |
| inline const Cmpt& xx() const; | |
| inline const Cmpt& xy() const; | |
| inline const Cmpt& yx() const; | |
| inline const Cmpt& yy() const; | |
| inline Cmpt& xx(); | |
| inline Cmpt& xy(); | |
| inline Cmpt& yx(); | |
| inline Cmpt& yy(); | |
| // Access vector components. | |
| inline Vector2D<Cmpt> x() const; | |
| inline Vector2D<Cmpt> y() const; | |
| //- Transpose | |
| inline Tensor2D<Cmpt> T() const; | |
| // Member Operators | |
| //- Copy SymmTensor2D | |
| inline void operator=(const SymmTensor2D<Cmpt>&); | |
| //- Copy SphericalTensor2D | |
| inline void operator=(const SphericalTensor2D<Cmpt>&); | |
| }; | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| } // End namespace Foam | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| // Include inline implementations | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| // ************************************************************************* // | |