Revision 911b54edbd517a4f19fd83b75a940d1c58a78584 authored by Julian Heinze on 13 June 2023, 14:28:53 UTC, committed by Dmitri Naumov on 13 June 2023, 16:34:52 UTC
1 parent 2bfe60b
TetRule4.h
/**
* \file
* \copyright
* Copyright (c) 2012-2023, OpenGeoSys Community (http://www.opengeosys.org)
* Distributed under a Modified BSD License.
* See accompanying file LICENSE.txt or
* http://www.opengeosys.org/project/license
*
*/
#pragma once
#include "MeshLib/MeshEnums.h"
#include "Element.h"
#include "EdgeReturn.h"
#include "CellRule.h"
namespace MeshLib
{
/**
* This class represents a 3d tetrahedron element. The following sketch shows the node and edge numbering.
* @anchor Tetrahedron4NodeAndEdgeNumbering
* @code
* 3
* /|\
* / | \
* 3/ | \5
* / |4 \
* / | \
* 0.....|.....2
* \ | 2 /
* \ | /
* 0\ | /1
* \ | /
* \|/
* 1
*
* @endcode
*/
class TetRule4 : public CellRule
{
public:
/// Constant: The number of base nodes for this element
static const unsigned n_base_nodes = 4u;
/// Constant: The number of all nodes for this element
static const unsigned n_all_nodes = 4u;
/// Constant: The geometric type of the element
static const MeshElemType mesh_elem_type = MeshElemType::TETRAHEDRON;
/// Constant: The FEM type of the element
static const CellType cell_type = CellType::TET4;
/// Constant: The number of faces
static const unsigned n_faces = 4;
/// Constant: The number of edges
static const unsigned n_edges = 6;
/// Constant: The number of neighbors
static const unsigned n_neighbors = 4;
/// Constant: Local node index table for faces
static const unsigned face_nodes[4][3];
/// Constant: Local node index table for edge
static const unsigned edge_nodes[6][2];
/// Returns the i-th edge of the element.
using EdgeReturn = MeshLib::LinearEdgeReturn;
/// Returns the i-th face of the element.
static const Element* getFace(const Element* e, unsigned i);
/**
* \copydoc MeshLib::Element::isPntInElement()
* @param nodes the nodes of the element.
*/
static bool isPntInElement(Node const* const* nodes,
MathLib::Point3d const& pnt, double eps);
/**
* Tests if the element is geometrically valid.
*/
static ElementErrorCode validate(const Element* e);
/// Returns the ID of a face given an array of nodes.
static unsigned identifyFace(Node const* const* /*_nodes*/,
Node const* nodes[3]);
/// Calculates the volume of the element
static double computeVolume(Node const* const* _nodes);
}; /* class */
} // namespace MeshLib
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