cells.h

// Copyright (C) 2019 Jorgen S. Dokken
//
// This file is part of DOLFINx (https://www.fenicsproject.org)
//
// SPDX-License-Identifier:    LGPL-3.0-or-later
 
#pragma once
 
#include <array>
#include <cstdint>
#include <dolfinx/mesh/cell_types.h>
#include <span>
#include <vector>


namespace dolfinx::io::cells
{

int cell_degree(mesh::CellType type, int num_nodes);

std::vector<std::uint16_t> perm_vtk(mesh::CellType type, int num_nodes);

std::vector<std::uint16_t> perm_gmsh(mesh::CellType type, int num_nodes);

std::vector<std::uint16_t> transpose(std::span<const std::uint16_t> map);

std::vector<std::int64_t> apply_permutation(std::span<const std::int64_t> cells,
                                            std::array<std::size_t, 2> shape,
                                            std::span<const std::uint16_t> p);

std::int8_t get_vtk_cell_type(mesh::CellType cell, int dim);
 
} // namespace dolfinx::io::cells