MFEM v4.7.0
Finite element discretization library
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transferutils.hpp
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1// Copyright (c) 2010-2024, Lawrence Livermore National Security, LLC. Produced
2// at the Lawrence Livermore National Laboratory. All Rights reserved. See files
3// LICENSE and NOTICE for details. LLNL-CODE-806117.
4//
5// This file is part of the MFEM library. For more information and source code
6// availability visit https://mfem.org.
7//
8// MFEM is free software; you can redistribute it and/or modify it under the
9// terms of the BSD-3 license. We welcome feedback and contributions, see file
10// CONTRIBUTING.md for details.
11
12#ifndef MFEM_L2P_MESH_UTILS_HPP
13#define MFEM_L2P_MESH_UTILS_HPP
14
17#include "../fem.hpp"
18
19namespace mfem
20{
21
22// These methods are to be used exclusively inside the routines inside the
23// transfer functionalities
24namespace internal
25{
26
27/*!
28 * @brief Creates a new element based on the type and cell data.
29 * @param type The element type (Geometry::TRIANGLE, Geometry::TETRAHEDRON,
30 * Geometry::SQUARE, Geometry::CUBE).
31 * @param cells_data The element connectivity.
32 * @param attr The element attribute.
33 */
34Element *NewElem(const int type, const int *cells_data, const int attr);
35
36/*!
37 * @brief Finalizes the mesh based on the element type
38 * @param mesh The mesh.
39 * @param generate_edges True if the generation of edges is requested, false if
40 * not.
41 */
42void Finalize(Mesh &mesh, const bool generate_edges);
43
44/*!
45 * @brief Computes a column vector containing the maximum element for each row
46 * @param mat The matrix
47 * @param vec[out] The vector where we store the result
48 * @param include_vec_elements True if we consider vec as an additional column
49 * of the matrix, False otherwise.
50 */
51void MaxCol(const DenseMatrix &mat, double *vec, bool include_vec_elements);
52
53/*!
54 * @brief Computes a column vector containing the minimum element for each row
55 * @param mat The matrix
56 * @param vec[out] The vector where we store the result
57 * @param include_vec_elements True if we consider vec as an additional column
58 * of the matrix, False otherwise.
59 */
60void MinCol(const DenseMatrix &mat, double *vec, bool include_vec_elements);
61
62/*!
63 * @brief Returns the maximum number of vertices in a face.
64 * @param type The element type of the face.
65 * @return The number of vertices.
66 */
67int MaxVertsXFace(const int type);
68
69/*!
70 * @brief Computes the sum of the matrix entries.
71 * @param mat The matrix.
72 * @return The sum of the elements of the matrix.
73 */
74double Sum(const DenseMatrix &mat);
75} // namespace internal
76
77} // namespace mfem
78
79#endif // MFEM_L2P_MESH_UTILS_HPP