Nektar++
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Pages
Public Member Functions | Static Public Member Functions | Static Public Attributes | List of all members
Nektar::NekMeshUtils::Hexahedron Class Reference

A 3-dimensional six-faced element. More...

#include <Hexahedron.h>

Inheritance diagram for Nektar::NekMeshUtils::Hexahedron:
Inheritance graph
[legend]
Collaboration diagram for Nektar::NekMeshUtils::Hexahedron:
Collaboration graph
[legend]

Public Member Functions

NEKMESHUTILS_EXPORT Hexahedron (ElmtConfig pConf, std::vector< NodeSharedPtr > pNodeList, std::vector< int > pTagList)
 Create a hexahedral element. More...
 
NEKMESHUTILS_EXPORT Hexahedron (const Hexahedron &pSrc)
 
virtual NEKMESHUTILS_EXPORT ~Hexahedron ()
 
virtual NEKMESHUTILS_EXPORT
SpatialDomains::GeometrySharedPtr 
GetGeom (int coordDim)
 Generate a Nektar++ geometry object for this element. More...
 
- Public Member Functions inherited from Nektar::NekMeshUtils::Element
NEKMESHUTILS_EXPORT Element (ElmtConfig pConf, unsigned int pNumNodes, unsigned int pGotNodes)
 
NEKMESHUTILS_EXPORT unsigned int GetId () const
 Returns the ID of the element (or associated edge or face for boundary elements). More...
 
NEKMESHUTILS_EXPORT unsigned int GetDim () const
 Returns the expansion dimension of the element. More...
 
NEKMESHUTILS_EXPORT ElmtConfig GetConf () const
 Returns the configuration of the element. More...
 
NEKMESHUTILS_EXPORT std::string GetTag () const
 Returns the tag which defines the element shape. More...
 
NEKMESHUTILS_EXPORT NodeSharedPtr GetVertex (unsigned int i) const
 Access a vertex node. More...
 
NEKMESHUTILS_EXPORT EdgeSharedPtr GetEdge (unsigned int i) const
 Access an edge. More...
 
NEKMESHUTILS_EXPORT FaceSharedPtr GetFace (unsigned int i) const
 Access a face. More...
 
NEKMESHUTILS_EXPORT
std::vector< NodeSharedPtr
GetVertexList () const
 Access the list of vertex nodes. More...
 
NEKMESHUTILS_EXPORT
std::vector< EdgeSharedPtr
GetEdgeList () const
 Access the list of edges. More...
 
NEKMESHUTILS_EXPORT
std::vector< FaceSharedPtr
GetFaceList () const
 Access the list of faces. More...
 
NEKMESHUTILS_EXPORT
std::vector< NodeSharedPtr
GetVolumeNodes () const
 Access the list of volume nodes. More...
 
NEKMESHUTILS_EXPORT void SetVolumeNodes (std::vector< NodeSharedPtr > &nodes)
 
NEKMESHUTILS_EXPORT
LibUtilities::PointsType 
GetCurveType () const
 
NEKMESHUTILS_EXPORT void SetCurveType (LibUtilities::PointsType cT)
 
NEKMESHUTILS_EXPORT unsigned int GetNodeCount () const
 Returns the total number of nodes (vertices, edge nodes and face nodes and volume nodes). More...
 
NEKMESHUTILS_EXPORT
std::vector< int > 
GetTagList () const
 Access the list of tags associated with this element. More...
 
NEKMESHUTILS_EXPORT unsigned int GetVertexCount () const
 Returns the number of vertices. More...
 
NEKMESHUTILS_EXPORT unsigned int GetEdgeCount () const
 Returns the number of edges. More...
 
NEKMESHUTILS_EXPORT unsigned int GetFaceCount () const
 Returns the number of faces. More...
 
NEKMESHUTILS_EXPORT void SetId (unsigned int p)
 Change the ID of the element. More...
 
NEKMESHUTILS_EXPORT void SetVertex (unsigned int p, NodeSharedPtr pNew)
 Replace a vertex with another vertex object. More...
 
NEKMESHUTILS_EXPORT void SetEdge (unsigned int p, EdgeSharedPtr pNew)
 Replace an edge with another edge object. More...
 
NEKMESHUTILS_EXPORT void SetFace (unsigned int p, FaceSharedPtr pNew)
 Replace a face with another face object. More...
 
NEKMESHUTILS_EXPORT void SetEdgeLink (EdgeSharedPtr pLink)
 Set a correspondence between this element and an edge (2D boundary element). More...
 
NEKMESHUTILS_EXPORT EdgeSharedPtr GetEdgeLink ()
 Get correspondence between this element and an edge. More...
 
NEKMESHUTILS_EXPORT void SetFaceLink (FaceSharedPtr pLink)
 Set a correspondence between this element and a face (3D boundary element). More...
 
NEKMESHUTILS_EXPORT FaceSharedPtr GetFaceLink ()
 Get correspondence between this element and a face. More...
 
NEKMESHUTILS_EXPORT void SetBoundaryLink (int i, int j)
 Set a correspondence between edge or face i and its representative boundary element m->element[expDim-1][j]. More...
 
NEKMESHUTILS_EXPORT int GetBoundaryLink (int i)
 Get the location of the boundary face/edge i for this element. More...
 
NEKMESHUTILS_EXPORT void SetTagList (const std::vector< int > &tags)
 Set the list of tags associated with this element. More...
 
virtual NEKMESHUTILS_EXPORT
std::string 
GetXmlString () const
 Generate a list of vertices (1D), edges (2D), or faces (3D). More...
 
NEKMESHUTILS_EXPORT void GetCurvedNodes (std::vector< NodeSharedPtr > &nodeList) const
 
NEKMESHUTILS_EXPORT std::string GetXmlCurveString () const
 Generates a string listing the coordinates of all nodes associated with this element. More...
 
NEKMESHUTILS_EXPORT int GetMaxOrder ()
 Obtain the order of an element by looking at edges. More...
 
virtual NEKMESHUTILS_EXPORT void Complete (int order)
 Complete this object. More...
 
NEKMESHUTILS_EXPORT void Print ()
 

Static Public Member Functions

static NEKMESHUTILS_EXPORT
ElementSharedPtr 
create (ElmtConfig pConf, std::vector< NodeSharedPtr > pNodeList, std::vector< int > pTagList)
 Creates an instance of this class. More...
 
static NEKMESHUTILS_EXPORT
unsigned int 
GetNumNodes (ElmtConfig pConf)
 Return the number of nodes defining a hexahedron. More...
 

Static Public Attributes

static LibUtilities::ShapeType m_type
 Element type. More...
 

Additional Inherited Members

- Protected Attributes inherited from Nektar::NekMeshUtils::Element
unsigned int m_id
 ID of the element. More...
 
unsigned int m_dim
 Dimension of the element. More...
 
ElmtConfig m_conf
 Contains configuration of the element. More...
 
std::string m_tag
 Tag character describing the element. More...
 
std::vector< int > m_taglist
 List of integers specifying properties of the element. More...
 
std::vector< NodeSharedPtrm_vertex
 List of element vertex nodes. More...
 
std::vector< EdgeSharedPtrm_edge
 List of element edges. More...
 
std::vector< FaceSharedPtrm_face
 List of element faces. More...
 
std::vector< NodeSharedPtrm_volumeNodes
 List of element volume nodes. More...
 
LibUtilities::PointsType m_curveType
 Volume curve type. More...
 
EdgeSharedPtr m_edgeLink
 Pointer to the corresponding edge if element is a 2D boundary. More...
 
FaceSharedPtr m_faceLink
 Pointer to the corresponding face if element is a 3D boundary. More...
 
std::map< int, int > m_boundaryLinks
 Array mapping faces/edges to the location of the appropriate boundary elements in m->element. More...
 
SpatialDomains::GeometrySharedPtr m_geom
 Nektar++ geometry object for this element. More...
 

Detailed Description

A 3-dimensional six-faced element.

Definition at line 49 of file Hexahedron.h.

Constructor & Destructor Documentation

Nektar::NekMeshUtils::Hexahedron::Hexahedron ( ElmtConfig  pConf,
std::vector< NodeSharedPtr pNodeList,
std::vector< int >  pTagList 
)

Create a hexahedral element.

Definition at line 53 of file Hexahedron.cpp.

References Nektar::iterator, Nektar::NekMeshUtils::Element::m_conf, Nektar::NekMeshUtils::Element::m_dim, Nektar::NekMeshUtils::Element::m_edge, Nektar::NekMeshUtils::ElmtConfig::m_edgeCurveType, Nektar::NekMeshUtils::Element::m_face, Nektar::NekMeshUtils::ElmtConfig::m_faceCurveType, Nektar::NekMeshUtils::ElmtConfig::m_faceNodes, Nektar::NekMeshUtils::ElmtConfig::m_order, Nektar::NekMeshUtils::Element::m_tag, Nektar::NekMeshUtils::Element::m_taglist, and Nektar::NekMeshUtils::Element::m_vertex.

Referenced by create().

56  : Element(pConf, GetNumNodes(pConf), pNodeList.size())
57 {
58  m_tag = "H";
59  m_dim = 3;
60  m_taglist = pTagList;
61  int n = m_conf.m_order - 1;
62 
63  // Create a map to relate edge nodes to a pair of vertices defining an edge
64  // This is based on the ordering produced by gmsh.
65  map<pair<int, int>, int> edgeNodeMap;
66  map<pair<int, int>, int>::iterator it;
67  edgeNodeMap[pair<int, int>(1, 2)] = 9;
68  edgeNodeMap[pair<int, int>(2, 3)] = 9 + n;
69  edgeNodeMap[pair<int, int>(3, 4)] = 9 + 2 * n;
70  edgeNodeMap[pair<int, int>(4, 1)] = 9 + 3 * n;
71  edgeNodeMap[pair<int, int>(1, 5)] = 9 + 4 * n;
72  edgeNodeMap[pair<int, int>(2, 6)] = 9 + 5 * n;
73  edgeNodeMap[pair<int, int>(3, 7)] = 9 + 6 * n;
74  edgeNodeMap[pair<int, int>(4, 8)] = 9 + 7 * n;
75  edgeNodeMap[pair<int, int>(5, 6)] = 9 + 8 * n;
76  edgeNodeMap[pair<int, int>(6, 7)] = 9 + 9 * n;
77  edgeNodeMap[pair<int, int>(7, 8)] = 9 + 10 * n;
78  edgeNodeMap[pair<int, int>(8, 5)] = 9 + 11 * n;
79 
80  // Add vertices
81  for (int i = 0; i < 8; ++i)
82  {
83  m_vertex.push_back(pNodeList[i]);
84  }
85 
86  // Create edges (with corresponding set of edge points)
87  for (it = edgeNodeMap.begin(); it != edgeNodeMap.end(); ++it)
88  {
89  vector<NodeSharedPtr> edgeNodes;
90  if (m_conf.m_order > 1)
91  {
92  for (int j = it->second; j < it->second + n; ++j)
93  {
94  edgeNodes.push_back(pNodeList[j - 1]);
95  }
96  }
97  m_edge.push_back(EdgeSharedPtr(new Edge(pNodeList[it->first.first - 1],
98  pNodeList[it->first.second - 1],
99  edgeNodes,
101  }
102 
103  // Create faces
104  int face_edges[6][4];
105  int face_ids[6][4] = {{0, 1, 2, 3},
106  {0, 1, 5, 4},
107  {1, 2, 6, 5},
108  {3, 2, 6, 7},
109  {0, 3, 7, 4},
110  {4, 5, 6, 7}};
111  for (int j = 0; j < 6; ++j)
112  {
113  vector<NodeSharedPtr> faceVertices;
114  vector<EdgeSharedPtr> faceEdges;
115  vector<NodeSharedPtr> faceNodes;
116  for (int k = 0; k < 4; ++k)
117  {
118  faceVertices.push_back(m_vertex[face_ids[j][k]]);
119  NodeSharedPtr a = m_vertex[face_ids[j][k]];
120  NodeSharedPtr b = m_vertex[face_ids[j][(k + 1) % 4]];
121  for (unsigned int i = 0; i < m_edge.size(); ++i)
122  {
123  if (((*(m_edge[i]->m_n1) == *a) &&
124  (*(m_edge[i]->m_n2) == *b)) ||
125  ((*(m_edge[i]->m_n1) == *b) && (*(m_edge[i]->m_n2) == *a)))
126  {
127  face_edges[j][k] = i;
128  faceEdges.push_back(m_edge[i]);
129  break;
130  }
131  }
132  }
133 
134  if (m_conf.m_faceNodes)
135  {
136  int N = 8 + 12 * n + j * n * n;
137  for (int i = 0; i < n * n; ++i)
138  {
139  faceNodes.push_back(pNodeList[N + i]);
140  }
141  }
142  m_face.push_back(FaceSharedPtr(new Face(
143  faceVertices, faceNodes, faceEdges, m_conf.m_faceCurveType)));
144  }
145 
146  // Reorder edges to be consistent with Nektar++ ordering.
147  vector<EdgeSharedPtr> tmp(12);
148  tmp[0] = m_edge[face_edges[0][0]];
149  tmp[1] = m_edge[face_edges[0][1]];
150  tmp[2] = m_edge[face_edges[0][2]];
151  tmp[3] = m_edge[face_edges[0][3]];
152  tmp[4] = m_edge[face_edges[1][3]];
153  tmp[5] = m_edge[face_edges[1][1]];
154  tmp[6] = m_edge[face_edges[2][1]];
155  tmp[7] = m_edge[face_edges[4][1]];
156  tmp[8] = m_edge[face_edges[5][0]];
157  tmp[9] = m_edge[face_edges[5][1]];
158  tmp[10] = m_edge[face_edges[5][2]];
159  tmp[11] = m_edge[face_edges[5][3]];
160  m_edge = tmp;
161 }
bool m_faceNodes
Denotes whether the element contains face nodes. For 2D elements, if this is true then the element co...
Definition: Element.h:89
LibUtilities::PointsType m_faceCurveType
Distribution of points in faces.
Definition: Element.h:103
ElmtConfig m_conf
Contains configuration of the element.
Definition: Element.h:496
std::vector< int > m_taglist
List of integers specifying properties of the element.
Definition: Element.h:500
LibUtilities::PointsType m_edgeCurveType
Distribution of points in edges.
Definition: Element.h:101
unsigned int m_order
Order of the element.
Definition: Element.h:96
std::vector< NodeSharedPtr > m_vertex
List of element vertex nodes.
Definition: Element.h:502
unsigned int m_dim
Dimension of the element.
Definition: Element.h:494
std::vector< EdgeSharedPtr > m_edge
List of element edges.
Definition: Element.h:504
boost::shared_ptr< Node > NodeSharedPtr
Definition: Node.h:50
static NEKMESHUTILS_EXPORT unsigned int GetNumNodes(ElmtConfig pConf)
Return the number of nodes defining a hexahedron.
Definition: Hexahedron.cpp:182
std::string m_tag
Tag character describing the element.
Definition: Element.h:498
boost::shared_ptr< Edge > EdgeSharedPtr
Shared pointer to an edge.
Definition: Edge.h:196
StandardMatrixTag boost::call_traits< LhsDataType >::const_reference rhs typedef NekMatrix< LhsDataType, StandardMatrixTag >::iterator iterator
NEKMESHUTILS_EXPORT Element(ElmtConfig pConf, unsigned int pNumNodes, unsigned int pGotNodes)
Definition: Element.cpp:54
std::vector< FaceSharedPtr > m_face
List of element faces.
Definition: Element.h:506
boost::shared_ptr< Face > FaceSharedPtr
Shared pointer to a face.
Definition: Face.h:378
NEKMESHUTILS_EXPORT Nektar::NekMeshUtils::Hexahedron::Hexahedron ( const Hexahedron pSrc)
virtual NEKMESHUTILS_EXPORT Nektar::NekMeshUtils::Hexahedron::~Hexahedron ( )
inlinevirtual

Definition at line 74 of file Hexahedron.h.

75  {
76  }

Member Function Documentation

static NEKMESHUTILS_EXPORT ElementSharedPtr Nektar::NekMeshUtils::Hexahedron::create ( ElmtConfig  pConf,
std::vector< NodeSharedPtr pNodeList,
std::vector< int >  pTagList 
)
inlinestatic

Creates an instance of this class.

Definition at line 53 of file Hexahedron.h.

References Hexahedron().

57  {
58  ElementSharedPtr e = boost::shared_ptr<Element>(
59  new Hexahedron(pConf, pNodeList, pTagList));
60  std::vector<FaceSharedPtr> faces = e->GetFaceList();
61  for (int i = 0; i < faces.size(); ++i)
62  {
63  faces[i]->m_elLink.push_back(std::pair<ElementSharedPtr, int>(e, i));
64  }
65  return e;
66  }
NEKMESHUTILS_EXPORT Hexahedron(ElmtConfig pConf, std::vector< NodeSharedPtr > pNodeList, std::vector< int > pTagList)
Create a hexahedral element.
Definition: Hexahedron.cpp:53
boost::shared_ptr< Element > ElementSharedPtr
Definition: Edge.h:52
SpatialDomains::GeometrySharedPtr Nektar::NekMeshUtils::Hexahedron::GetGeom ( int  coordDim)
virtual

Generate a Nektar++ geometry object for this element.

Reimplemented from Nektar::NekMeshUtils::Element.

Definition at line 163 of file Hexahedron.cpp.

References Nektar::MemoryManager< DataType >::AllocateSharedPtr(), and Nektar::NekMeshUtils::Element::m_face.

164 {
167 
168  for (int i = 0; i < 6; ++i)
169  {
170  faces[i] = boost::dynamic_pointer_cast<SpatialDomains::QuadGeom>(
171  m_face[i]->GetGeom(coordDim));
172  }
173 
175 
176  return ret;
177 }
static boost::shared_ptr< DataType > AllocateSharedPtr()
Allocate a shared pointer from the memory pool.
boost::shared_ptr< QuadGeom > QuadGeomSharedPtr
Definition: QuadGeom.h:54
boost::shared_ptr< HexGeom > HexGeomSharedPtr
Definition: HexGeom.h:110
std::vector< FaceSharedPtr > m_face
List of element faces.
Definition: Element.h:506
unsigned int Nektar::NekMeshUtils::Hexahedron::GetNumNodes ( ElmtConfig  pConf)
static

Return the number of nodes defining a hexahedron.

Definition at line 182 of file Hexahedron.cpp.

References Nektar::NekMeshUtils::ElmtConfig::m_faceNodes, Nektar::NekMeshUtils::ElmtConfig::m_order, and Nektar::NekMeshUtils::ElmtConfig::m_volumeNodes.

Referenced by Nektar::Utilities::InputGmsh::GetNnodes().

183 {
184  int n = pConf.m_order;
185  if (pConf.m_faceNodes && pConf.m_volumeNodes)
186  return (n + 1) * (n + 1) * (n + 1);
187  else if (pConf.m_faceNodes && !pConf.m_volumeNodes)
188  return 6 * (n + 1) * (n + 1) - 12 * (n + 1) + 8;
189  else
190  return 12 * (n + 1) - 16;
191 }

Member Data Documentation

LibUtilities::ShapeType Nektar::NekMeshUtils::Hexahedron::m_type
static
Initial value:

Element type.

Definition at line 68 of file Hexahedron.h.