MeshLib::TetRule4 Class Reference

Detailed Description

This class represents a 3d tetrahedron element with 4 nodes. The following sketch shows the node and edge numbering.

      3
     /|\
    / | \
  3/  |  \5
  /   |4  \
 /    |    \
0.....|.....2
 \    |  2 /
  \   |   /
  0\  |  /1
    \ | /
     \|/
      1

Definition at line 41 of file TetRule4.h.

#include <TetRule4.h>

Inheritance diagram for MeshLib::TetRule4:

Collaboration diagram for MeshLib::TetRule4:

Public Types
using	EdgeReturn = MeshLib::LinearEdgeReturn
	Returns the i-th edge of the element.

Static Public Member Functions
static const Element *	getFace (const Element *e, unsigned i)
	Returns the i-th face of the element.
static unsigned	identifyFace (Node const *const *element_nodes, Node const *nodes[3])
	Returns the ID of a face given an array of nodes.
Static Public Member Functions inherited from MeshLib::TetRule
static bool	isPntInElement (Node const *const *nodes, MathLib::Point3d const &pnt, double eps)
static ElementErrorCode	validate (const Element *e)
static double	computeVolume (Node const *const *element_nodes)
	Calculates the volume of a tetrahedron.
Static Public Member Functions inherited from MeshLib::CellRule
static bool	testElementNodeOrder (Element const &e)

Static Public Attributes
static const unsigned	n_all_nodes = 4u
	Constant: The number of all nodes for this element.
static const CellType	cell_type = CellType::TET4
	Constant: The FEM type of the element.
static constexpr const unsigned	face_nodes [4][3]
	Constant: Local node index table for faces.
static constexpr const unsigned	edge_nodes [6][2]
	Constant: Local node index table for edge.
Static Public Attributes inherited from MeshLib::TetRule
static const unsigned	n_base_nodes = 4u
	Constant: The number of base nodes for this element.
static const MeshElemType	mesh_elem_type = MeshElemType::TETRAHEDRON
	Constant: The geometric type of the element.
static const unsigned	n_faces = 4
	Constant: The number of faces.
static const unsigned	n_edges = 6
	Constant: The number of edges.
static const unsigned	n_neighbors = 4
	Constant: The number of neighbors.
Static Public Attributes inherited from MeshLib::CellRule
static const unsigned	dimension = 3u
	Constant: Dimension of this mesh element.

Additional Inherited Members
Static Protected Member Functions inherited from MeshLib::CellRule
template<typename ElementRule >
static unsigned	identifyFace (Node const *const *element_nodes, Node const *nodes[ElementRule::dimension])
	Returns the ID of a face given an array of nodes.

Member Typedef Documentation

EdgeReturn

using MeshLib::TetRule4::EdgeReturn = MeshLib::LinearEdgeReturn

Returns the i-th edge of the element.

Definition at line 69 of file TetRule4.h.

Member Function Documentation

getFace()

const Element * MeshLib::TetRule4::getFace ( const Element * e, unsigned i )

static

Returns the i-th face of the element.

Definition at line 21 of file TetRule4.cpp.

{
    if (i < n_faces)
    {
        std::array<Node*, 3> nodes{};
        for (unsigned j = 0; j < 3; j++)
        {
            nodes[j] = const_cast<Node*>(e->getNode(face_nodes[i][j]));
        }
        return new Tri(nodes, e->getID());
    }
    ERR("Error in MeshLib::Element::getFace() - Index {:d} does not exist.", i);
    return nullptr;
}

References ERR(), face_nodes, MeshLib::Element::getID(), MeshLib::Element::getNode(), and MeshLib::TetRule::n_faces.

identifyFace()

static unsigned MeshLib::TetRule4::identifyFace ( Node const *const * element_nodes, Node const * nodes[3] )

inlinestatic

Returns the ID of a face given an array of nodes.

Definition at line 75 of file TetRule4.h.

    {
        return CellRule::identifyFace<TetRule4>(element_nodes, nodes);
    }

References MeshLib::CellRule::identifyFace().

Member Data Documentation

cell_type

const CellType MeshLib::TetRule4::cell_type = CellType::TET4

static

Constant: The FEM type of the element.

Definition at line 48 of file TetRule4.h.

edge_nodes

const unsigned MeshLib::TetRule4::edge_nodes[6][2]

staticconstexpr

Initial value:

= {
        {0, 1},  
        {1, 2},  
        {0, 2},  
        {0, 3},  
        {1, 3},  
        {2, 3}   
    }

Constant: Local node index table for edge.

Definition at line 59 of file TetRule4.h.

                                                       {
        {0, 1},  // Edge 0
        {1, 2},  // Edge 1
        {0, 2},  // Edge 2
        {0, 3},  // Edge 3
        {1, 3},  // Edge 4
        {2, 3}   // Edge 5
    };

face_nodes

const unsigned MeshLib::TetRule4::face_nodes[4][3]

staticconstexpr

Initial value:

= {
        {0, 2, 1},  
        {0, 1, 3},  
        {1, 2, 3},  
        {2, 0, 3}   
    }

Constant: Local node index table for faces.

Definition at line 51 of file TetRule4.h.

                                                       {
        {0, 2, 1},  // Face 0
        {0, 1, 3},  // Face 1
        {1, 2, 3},  // Face 2
        {2, 0, 3}   // Face 3
    };

Referenced by getFace().

n_all_nodes

const unsigned MeshLib::TetRule4::n_all_nodes = 4u

static

Constant: The number of all nodes for this element.

Definition at line 45 of file TetRule4.h.

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The documentation for this class was generated from the following files:

• MeshLib/Elements/TetRule4.h
• MeshLib/Elements/TetRule4.cpp