MeshLib::HexRule8 Class Reference

Detailed Description

A 8-nodes Hexahedron Element.

Hex:
              6
        7-----------6
       /:          /|
      / :         / |
    7/  :        /5 |
    / 11:       /   | 10
   /    : 4    /    |
  4-----------5     |
  |     :     | 2   |
  |     3.....|.....2
  |    .      |    /
8 |   .       |9  /
  | 3.        |  / 1
  | .         | /
  |.          |/
  0-----------1
        0

Definition at line 43 of file HexRule8.h.

#include <HexRule8.h>

Inheritance diagram for MeshLib::HexRule8:

Collaboration diagram for MeshLib::HexRule8:

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::HexRule
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)
Static Public Member Functions inherited from MeshLib::CellRule
static bool	testElementNodeOrder (Element const &e)

Static Public Attributes
static const unsigned	n_all_nodes = 8u
	Constant: The number of all nodes for this element.
static const CellType	cell_type = CellType::HEX8
	Constant: The FEM type of the element.
static constexpr const unsigned	face_nodes [6][4]
	Constant: Local node index table for faces.
static constexpr const unsigned	edge_nodes [12][2]
	Constant: Local node index table for edge.
Static Public Attributes inherited from MeshLib::HexRule
static const unsigned	n_base_nodes = 8u
	Constant: The number of base nodes for this element.
static const MeshElemType	mesh_elem_type = MeshElemType::HEXAHEDRON
	Constant: The geometric type of the element.
static const unsigned	n_faces = 6
	Constant: The number of faces.
static const unsigned	n_edges = 12
	Constant: The number of edges.
static const unsigned	n_neighbors = 6
	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::HexRule8::EdgeReturn = MeshLib::LinearEdgeReturn

Returns the i-th edge of the element.

Definition at line 79 of file HexRule8.h.

Member Function Documentation

getFace()

const Element * MeshLib::HexRule8::getFace ( const Element * e, unsigned i )

static

Returns the i-th face of the element.

Definition at line 23 of file HexRule8.cpp.

{
    if (i < n_faces)
    {
        std::array<Node*, 4> nodes{};
        for (unsigned j = 0; j < 4; j++)
        {
            nodes[j] = const_cast<Node*>(e->getNode(face_nodes[i][j]));
        }
        return new Quad(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::HexRule::n_faces.

identifyFace()

unsigned MeshLib::HexRule8::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 85 of file HexRule8.h.

    {
        return CellRule::identifyFace<HexRule8>(element_nodes, nodes);
    }

References MeshLib::CellRule::identifyFace().

Member Data Documentation

cell_type

const CellType MeshLib::HexRule8::cell_type = CellType::HEX8

static

Constant: The FEM type of the element.

Definition at line 50 of file HexRule8.h.

edge_nodes

const unsigned MeshLib::HexRule8::edge_nodes[12][2]

staticconstexpr

Initial value:

= {
        {0, 1},  
        {1, 2},  
        {2, 3},  
        {0, 3},  
        {4, 5},  
        {5, 6},  
        {6, 7},  
        {4, 7},  
        {0, 4},  
        {1, 5},  
        {2, 6},  
        {3, 7}   
    }

Constant: Local node index table for edge.

Definition at line 63 of file HexRule8.h.

                                                        {
        {0, 1},  // Edge 0
        {1, 2},  // Edge 1
        {2, 3},  // Edge 2
        {0, 3},  // Edge 3
        {4, 5},  // Edge 4
        {5, 6},  // Edge 5
        {6, 7},  // Edge 6
        {4, 7},  // Edge 7
        {0, 4},  // Edge 8
        {1, 5},  // Edge 9
        {2, 6},  // Edge 10
        {3, 7}   // Edge 11
    };

face_nodes

const unsigned MeshLib::HexRule8::face_nodes[6][4]

staticconstexpr

Initial value:

= {
        {0, 3, 2, 1},  
        {0, 1, 5, 4},  
        {1, 2, 6, 5},  
        {2, 3, 7, 6},  
        {3, 0, 4, 7},  
        {4, 5, 6, 7}   
    }

Constant: Local node index table for faces.

Definition at line 53 of file HexRule8.h.

                                                       {
        {0, 3, 2, 1},  // Face 0
        {0, 1, 5, 4},  // Face 1
        {1, 2, 6, 5},  // Face 2
        {2, 3, 7, 6},  // Face 3
        {3, 0, 4, 7},  // Face 4
        {4, 5, 6, 7}   // Face 5
    };

Referenced by getFace().

n_all_nodes

const unsigned MeshLib::HexRule8::n_all_nodes = 8u

static

Constant: The number of all nodes for this element.

Definition at line 47 of file HexRule8.h.

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

• MeshLib/Elements/HexRule8.h
• MeshLib/Elements/HexRule8.cpp