OpenFOAM-dev / data /src /OpenFOAM /meshes /polyMesh /polyMeshTetDecomposition /polyMeshTetDecomposition.H
| /*---------------------------------------------------------------------------*\ | |
| ========= | | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | |
| \\ / O peration | Website: https://openfoam.org | |
| \\ / A nd | Copyright (C) 2011-2020 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. | |
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| 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::polyMeshTetDecomposition | |
| Description | |
| Tools for performing the minimum decomposition of faces of the | |
| mesh into triangles so that the cells may be tet decomposed. | |
| Includes functions for finding variable face starting (base) | |
| points on each face to avoid the decomposition of cells into tets | |
| that have negative or zero volume. | |
| SourceFiles | |
| polyMeshTetDecomposition.C | |
| \*---------------------------------------------------------------------------*/ | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| namespace Foam | |
| { | |
| /*---------------------------------------------------------------------------*\ | |
| Class polyMeshTetDecomposition Declaration | |
| \*---------------------------------------------------------------------------*/ | |
| class polyMeshTetDecomposition | |
| { | |
| public: | |
| // Static Data Members | |
| //- Minimum tetrahedron quality | |
| static const scalar minTetQuality; | |
| // Member Functions | |
| //- Given a face and cc and starting index for triangulation determine | |
| // the worst tet quality. | |
| static scalar minQuality | |
| ( | |
| const polyMesh& mesh, | |
| const point& cC, | |
| const label fI, | |
| const bool isOwner, | |
| const label faceBasePtI | |
| ); | |
| //- Find the first suitable base point to use for a minimum | |
| // triangle decomposition of the face, suiting owner and | |
| // neighbour cells. Finds the first base point on the face | |
| // whose worst quality tet from either cell is better than | |
| // tolerance. Neighbour cell centre supplied. For coupled | |
| // patches. | |
| static label findSharedBasePoint | |
| ( | |
| const polyMesh& mesh, | |
| label fI, | |
| const point& nCc, | |
| scalar tol, | |
| bool report = false | |
| ); | |
| //- As for findSharedBasePoint, but using neighbour cell | |
| // centre from the mesh. For internal faces. | |
| static label findSharedBasePoint | |
| ( | |
| const polyMesh& mesh, | |
| label fI, | |
| scalar tol, | |
| bool report = false | |
| ); | |
| //- Find the base point to use for a minimum triangle | |
| // decomposition of the face, using only the owner | |
| // information. For non-coupled boundary faces. | |
| static label findBasePoint | |
| ( | |
| const polyMesh& mesh, | |
| label fI, | |
| scalar tol, | |
| bool report = false | |
| ); | |
| //- Find a suitable base point for each face for decomposition | |
| // into tets | |
| static labelList findFaceBasePts | |
| ( | |
| const polyMesh& mesh, | |
| scalar tol = minTetQuality, | |
| bool report = false | |
| ); | |
| //- Check face-decomposition tet volume | |
| static bool checkFaceTets | |
| ( | |
| const polyMesh& mesh, | |
| scalar tol = minTetQuality, | |
| const bool report = false, | |
| labelHashSet* setPtr = nullptr | |
| ); | |
| //- Return the tet decomposition of the given face, with | |
| // respect to the given cell | |
| static List<tetIndices> faceTetIndices | |
| ( | |
| const polyMesh& mesh, | |
| label fI, | |
| label cI | |
| ); | |
| //- Return the tet decomposition of the given cell, see | |
| // findFacePt for the meaning of the indices | |
| static List<tetIndices> cellTetIndices | |
| ( | |
| const polyMesh& mesh, | |
| label cI | |
| ); | |
| //- Find the tet decomposition of the cell containing the given point | |
| static tetIndices findTet | |
| ( | |
| const polyMesh& mesh, | |
| label cI, | |
| const point& pt | |
| ); | |
| }; | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| } // End namespace Foam | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| // ************************************************************************* // | |