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|---|---|---|---|
| 1 | // -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- | ||
| 2 | // vi: set et ts=4 sw=4 sts=4: | ||
| 3 | // | ||
| 4 | // SPDX-FileCopyrightInfo: Copyright © DuMux Project contributors, see AUTHORS.md in root folder | ||
| 5 | // SPDX-License-Identifier: GPL-3.0-or-later | ||
| 6 | // | ||
| 7 | /*! | ||
| 8 | * \file | ||
| 9 | * \ingroup Discretization | ||
| 10 | * \brief Provides helper aliases and functionality to obtain the types | ||
| 11 | * and instances of Dune::Functions function space bases that | ||
| 12 | * underlie different discretization schemes | ||
| 13 | */ | ||
| 14 | #ifndef DUMUX_DISCRETIZATION_FUNCTION_SPACE_BASIS_HH | ||
| 15 | #define DUMUX_DISCRETIZATION_FUNCTION_SPACE_BASIS_HH | ||
| 16 | |||
| 17 | #if HAVE_DUNE_FUNCTIONS | ||
| 18 | |||
| 19 | #include <dumux/discretization/method.hh> | ||
| 20 | #include <dune/functions/functionspacebases/lagrangebasis.hh> | ||
| 21 | |||
| 22 | namespace Dumux { | ||
| 23 | |||
| 24 | /*! | ||
| 25 | * \ingroup Discretization | ||
| 26 | * \brief Traits class that contains information on the | ||
| 27 | * function space basis used by the discretization | ||
| 28 | * scheme underlying a grid geometry class. Specializations | ||
| 29 | * of the traits for different schemes are provided below. | ||
| 30 | */ | ||
| 31 | template< class GridGeometry, class DiscretizationMethod = typename GridGeometry::DiscretizationMethod > | ||
| 32 | struct FunctionSpaceBasisTraits; | ||
| 33 | |||
| 34 | /*! | ||
| 35 | * \ingroup Discretization | ||
| 36 | * \brief Creates a Dune::Functions object of the underlying basis | ||
| 37 | * of a discretization scheme that is not finite elements. | ||
| 38 | */ | ||
| 39 | template<class GridGeometry, std::enable_if_t<GridGeometry::discMethod != DiscretizationMethods::fem, int> = 0> | ||
| 40 | typename FunctionSpaceBasisTraits<GridGeometry>::GlobalBasis | ||
| 41 | getFunctionSpaceBasis(const GridGeometry& gridGeometry) | ||
| 42 |
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54 | { return {gridGeometry.gridView()}; } |
| 43 | |||
| 44 | /*! | ||
| 45 | * \ingroup Discretization | ||
| 46 | * \brief Returns the Dune::Functions object for the basis of a finite element scheme. | ||
| 47 | */ | ||
| 48 | template<class GridGeometry, std::enable_if_t<GridGeometry::discMethod == DiscretizationMethods::fem, int> = 0> | ||
| 49 | const typename FunctionSpaceBasisTraits<GridGeometry>::GlobalBasis& | ||
| 50 | getFunctionSpaceBasis(const GridGeometry& gridGeometry) | ||
| 51 | { return gridGeometry.feBasis(); } | ||
| 52 | |||
| 53 | |||
| 54 | /////////////////////////////////////////////////////////// | ||
| 55 | // Specializations of the FunctionSpaceBasisTraits class // | ||
| 56 | /////////////////////////////////////////////////////////// | ||
| 57 | |||
| 58 | //! Traits specialization: box scheme uses lagrange basis of order 1 | ||
| 59 | template< class GridGeometry > | ||
| 60 | struct FunctionSpaceBasisTraits<GridGeometry, DiscretizationMethods::Box> | ||
| 61 | { using GlobalBasis = Dune::Functions::LagrangeBasis<typename GridGeometry::GridView, /*order*/1>; }; | ||
| 62 | |||
| 63 | //! Traits specialization: cc schemes use lagrange bases of order 0 | ||
| 64 | template< class GridGeometry > | ||
| 65 | struct FunctionSpaceBasisTraits<GridGeometry, DiscretizationMethods::CCTpfa> | ||
| 66 | { using GlobalBasis = Dune::Functions::LagrangeBasis<typename GridGeometry::GridView, /*order*/0>; }; | ||
| 67 | |||
| 68 | //! Traits specialization: cc schemes use lagrange bases of order 0 | ||
| 69 | template< class GridGeometry > | ||
| 70 | struct FunctionSpaceBasisTraits<GridGeometry, DiscretizationMethods::CCMpfa> | ||
| 71 | { using GlobalBasis = Dune::Functions::LagrangeBasis<typename GridGeometry::GridView, /*order*/0>; }; | ||
| 72 | |||
| 73 | //! Traits specialization: fem defines its basis | ||
| 74 | template< class GridGeometry > | ||
| 75 | struct FunctionSpaceBasisTraits<GridGeometry, DiscretizationMethods::FEM> | ||
| 76 | { using GlobalBasis = typename GridGeometry::FEBasis; }; | ||
| 77 | |||
| 78 | } // end namespace Dumux | ||
| 79 | |||
| 80 | #endif // HAVE_DUNE_FUNCTIONS | ||
| 81 | #endif | ||
| 82 |