MFEM  v4.5.0
Finite element discretization library
Classes | Public Types | Public Member Functions | Static Public Member Functions | Protected Types | Protected Member Functions | Static Protected Member Functions | Protected Attributes | Static Protected Attributes | Friends | List of all members
mfem::NCMesh Class Reference

A class for non-conforming AMR. The class is not used directly by the user, rather it is an extension of the Mesh class. More...

#include <ncmesh.hpp>

Inheritance diagram for mfem::NCMesh:
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Collaboration diagram for mfem::NCMesh:
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Classes

struct  Element
 
struct  Face
 
struct  GeomInfo
 This holds in one place the constants about the geometries we support. More...
 
struct  Master
 
struct  MeshId
 Identifies a vertex/edge/face in both Mesh and NCMesh. More...
 
struct  NCList
 Lists all edges/faces in the nonconforming mesh. More...
 
struct  Node
 
struct  Point
 
struct  PointMatrix
 The PointMatrix stores the coordinates of the slave face using the master face coordinate as reference. More...
 
struct  Slave
 Nonconforming edge/face within a bigger edge/face. More...
 
struct  TmpVertex
 

Public Types

typedef std::int64_t RefCoord
 

Public Member Functions

 NCMesh (const Mesh *mesh)
 
 NCMesh (std::istream &input, int version, int &curved, int &is_nc)
 
 NCMesh (const NCMesh &other)
 Deep copy of another instance. More...
 
NCMeshoperator= (NCMesh &)=delete
 Copy assignment not supported. More...
 
virtual ~NCMesh ()
 
int Dimension () const
 Return the dimension of the NCMesh. More...
 
int SpaceDimension () const
 Return the space dimension of the NCMesh. More...
 
int GetNVertices () const
 Return the number of vertices in the NCMesh. More...
 
int GetNEdges () const
 Return the number of edges in the NCMesh. More...
 
int GetNFaces () const
 Return the number of (2D) faces in the NCMesh. More...
 
virtual int GetNGhostElements () const
 
virtual void Refine (const Array< Refinement > &refinements)
 
virtual void LimitNCLevel (int max_nc_level)
 
const TableGetDerefinementTable ()
 
virtual void CheckDerefinementNCLevel (const Table &deref_table, Array< int > &level_ok, int max_nc_level)
 
virtual void Derefine (const Array< int > &derefs)
 
const NCListGetFaceList ()
 Return the current list of conforming and nonconforming faces. More...
 
const NCListGetEdgeList ()
 Return the current list of conforming and nonconforming edges. More...
 
const NCListGetVertexList ()
 
const NCListGetNCList (int entity)
 Return vertex/edge/face list (entity = 0/1/2, respectively). More...
 
void MarkCoarseLevel ()
 
const CoarseFineTransformationsGetRefinementTransforms ()
 
const CoarseFineTransformationsGetDerefinementTransforms ()
 
void ClearTransforms ()
 Free all internal data created by the above three functions. More...
 
void GetEdgeVertices (const MeshId &edge_id, int vert_index[2], bool oriented=true) const
 Return Mesh vertex indices of an edge identified by 'edge_id'. More...
 
int GetEdgeNCOrientation (const MeshId &edge_id) const
 
int GetFaceVerticesEdges (const MeshId &face_id, int vert_index[4], int edge_index[4], int edge_orientation[4]) const
 
int GetEdgeMaster (int v1, int v2) const
 
virtual void GetBoundaryClosure (const Array< int > &bdr_attr_is_ess, Array< int > &bdr_vertices, Array< int > &bdr_edges)
 
Geometry::Type GetElementGeometry (int index) const
 Return element geometry type. index is the Mesh element number. More...
 
Geometry::Type GetFaceGeometry (int index) const
 Return face geometry type. index is the Mesh face number. More...
 
int GetNumRootElements ()
 Return the number of root elements. More...
 
int GetElementDepth (int i) const
 Return the distance of leaf 'i' from the root. More...
 
int GetElementSizeReduction (int i) const
 
void GetElementFacesAttributes (int i, Array< int > &faces, Array< int > &fattr) const
 Return the faces and face attributes of leaf element 'i'. More...
 
void Print (std::ostream &out) const
 I/O: Print the mesh in "MFEM NC mesh v1.0" format. More...
 
bool IsLegacyLoaded () const
 I/O: Return true if the mesh was loaded from the legacy v1.1 format. More...
 
void LegacyToNewVertexOrdering (Array< int > &order) const
 I/O: Return a map from old (v1.1) vertex indices to new vertex indices. More...
 
virtual void Trim ()
 Save memory by releasing all non-essential and cached data. More...
 
std::size_t MemoryUsage () const
 Return total number of bytes allocated. More...
 
int PrintMemoryDetail () const
 
void DebugLeafOrder (std::ostream &out) const
 
void DebugDump (std::ostream &out) const
 

Static Public Member Functions

static void GridSfcOrdering2D (int width, int height, Array< int > &coords)
 
static void GridSfcOrdering3D (int width, int height, int depth, Array< int > &coords)
 

Protected Types

typedef std::map< std::string, int > RefPathMap
 

Protected Member Functions

void GetMeshComponents (Mesh &mesh) const
 Fill Mesh::{vertices,elements,boundary} for the current finest level. More...
 
void OnMeshUpdated (Mesh *mesh)
 
void MakeTopologyOnly ()
 
virtual void Update ()
 
void UpdateLeafElements ()
 Update the leaf elements indices in leaf_elements. More...
 
void UpdateVertices ()
 This method assigns indices to vertices (Node::vert_index) that will be seen by the Mesh class and the rest of MFEM. More...
 
void CollectLeafElements (int elem, int state, Array< int > &ghosts, int &counter)
 
void InitRootState (int root_count)
 
void InitGeomFlags ()
 
bool HavePrisms () const
 Return true if the mesh contains prism elements. More...
 
bool HaveTets () const
 Return true if the mesh contains tetrahedral elements. More...
 
bool IsGhost (const Element &el) const
 Return true if the Element el is a ghost element. More...
 
void RefineElement (int elem, char ref_type)
 
void DerefineElement (int elem)
 Derefine the element elem, does nothing on leaf elements. More...
 
int AddElement (const Element &el)
 
void FreeElement (int id)
 
int NewHexahedron (int n0, int n1, int n2, int n3, int n4, int n5, int n6, int n7, int attr, int fattr0, int fattr1, int fattr2, int fattr3, int fattr4, int fattr5)
 
int NewWedge (int n0, int n1, int n2, int n3, int n4, int n5, int attr, int fattr0, int fattr1, int fattr2, int fattr3, int fattr4)
 
int NewTetrahedron (int n0, int n1, int n2, int n3, int attr, int fattr0, int fattr1, int fattr2, int fattr3)
 
int NewQuadrilateral (int n0, int n1, int n2, int n3, int attr, int eattr0, int eattr1, int eattr2, int eattr3)
 
int NewTriangle (int n0, int n1, int n2, int attr, int eattr0, int eattr1, int eattr2)
 
int NewSegment (int n0, int n1, int attr, int vattr1, int vattr2)
 
mfem::ElementNewMeshElement (int geom) const
 
int QuadFaceSplitType (int v1, int v2, int v3, int v4, int mid[5]=NULL) const
 
bool TriFaceSplit (int v1, int v2, int v3, int mid[3]=NULL) const
 
void ForceRefinement (int vn1, int vn2, int vn3, int vn4)
 
void FindEdgeElements (int vn1, int vn2, int vn3, int vn4, Array< MeshId > &prisms) const
 
void CheckAnisoPrism (int vn1, int vn2, int vn3, int vn4, const Refinement *refs, int nref)
 
void CheckAnisoFace (int vn1, int vn2, int vn3, int vn4, int mid12, int mid34, int level=0)
 
void CheckIsoFace (int vn1, int vn2, int vn3, int vn4, int en1, int en2, int en3, int en4, int midf)
 
void ReparentNode (int node, int new_p1, int new_p2)
 
int FindMidEdgeNode (int node1, int node2) const
 
int GetMidEdgeNode (int node1, int node2)
 
int GetMidFaceNode (int en1, int en2, int en3, int en4)
 
void ReferenceElement (int elem)
 
void UnreferenceElement (int elem, Array< int > &elemFaces)
 
FaceGetFace (Element &elem, int face_no)
 
void RegisterFaces (int elem, int *fattr=NULL)
 
void DeleteUnusedFaces (const Array< int > &elemFaces)
 
void CollectDerefinements (int elem, Array< Connection > &list)
 
int RetrieveNode (const Element &el, int index)
 Return el.node[index] correctly, even if the element is refined. More...
 
int FindNodeExt (const Element &el, int node, bool abort=true)
 Extended version of find_node: works if 'el' is refined. More...
 
int ReorderFacePointMat (int v0, int v1, int v2, int v3, int elem, const PointMatrix &pm, PointMatrix &reordered) const
 
void TraverseQuadFace (int vn0, int vn1, int vn2, int vn3, const PointMatrix &pm, int level, Face *eface[4], MatrixMap &matrix_map)
 
bool TraverseTriFace (int vn0, int vn1, int vn2, const PointMatrix &pm, int level, MatrixMap &matrix_map)
 
void TraverseTetEdge (int vn0, int vn1, const Point &p0, const Point &p1, MatrixMap &matrix_map)
 
void TraverseEdge (int vn0, int vn1, double t0, double t1, int flags, int level, MatrixMap &matrix_map)
 
virtual void BuildFaceList ()
 
virtual void BuildEdgeList ()
 
virtual void BuildVertexList ()
 
virtual void ElementSharesFace (int elem, int local, int face)
 
virtual void ElementSharesEdge (int elem, int local, int enode)
 
virtual void ElementSharesVertex (int elem, int local, int vnode)
 
void FindSetNeighbors (const Array< char > &elem_set, Array< int > *neighbors, Array< char > *neighbor_set=NULL)
 
void FindNeighbors (int elem, Array< int > &neighbors, const Array< int > *search_set=NULL)
 
void NeighborExpand (const Array< int > &elems, Array< int > &expanded, const Array< int > *search_set=NULL)
 
void CollectEdgeVertices (int v0, int v1, Array< int > &indices)
 
void CollectTriFaceVertices (int v0, int v1, int v2, Array< int > &indices)
 
void CollectQuadFaceVertices (int v0, int v1, int v2, int v3, Array< int > &indices)
 
void BuildElementToVertexTable ()
 
void UpdateElementToVertexTable ()
 
int GetVertexRootCoord (int elem, RefCoord coord[3]) const
 
void CollectIncidentElements (int elem, const RefCoord coord[3], Array< int > &list) const
 
void FindVertexCousins (int elem, int local, Array< int > &cousins) const
 
void GetPointMatrix (Geometry::Type geom, const char *ref_path, DenseMatrix &matrix)
 
void TraverseRefinements (int elem, int coarse_index, std::string &ref_path, RefPathMap &map)
 
void InitDerefTransforms ()
 
void SetDerefMatrixCodes (int parent, Array< int > &fine_coarse)
 
const double * CalcVertexPos (int node) const
 
int GetEdgeMaster (int node) const
 
void FindFaceNodes (int face, int node[4])
 
int EdgeSplitLevel (int vn1, int vn2) const
 
int TriFaceSplitLevel (int vn1, int vn2, int vn3) const
 
void QuadFaceSplitLevel (int vn1, int vn2, int vn3, int vn4, int &h_level, int &v_level) const
 
void CountSplits (int elem, int splits[3]) const
 
void GetLimitRefinements (Array< Refinement > &refinements, int max_level)
 
int PrintVertexParents (std::ostream *out) const
 Print the "vertex_parents" section of the mesh file. More...
 
void LoadVertexParents (std::istream &input)
 Load the vertex parent hierarchy from a mesh file. More...
 
int PrintBoundary (std::ostream *out) const
 
void LoadBoundary (std::istream &input)
 Load the "boundary" section of the mesh file. More...
 
void PrintCoordinates (std::ostream &out) const
 Print the "coordinates" section of the mesh file. More...
 
void LoadCoordinates (std::istream &input)
 Load the "coordinates" section of the mesh file. More...
 
void InitRootElements ()
 Count root elements and initialize root_state. More...
 
int CountTopLevelNodes () const
 Return the index of the last top-level node plus one. More...
 
bool ZeroRootStates () const
 Return true if all root_states are zero. More...
 
void LoadCoarseElements (std::istream &input)
 Load the element refinement hierarchy from a legacy mesh file. More...
 
void CopyElements (int elem, const BlockArray< Element > &tmp_elements)
 
void LoadLegacyFormat (std::istream &input, int &curved, int &is_nc)
 Load the deprecated MFEM mesh v1.1 format for backward compatibility. More...
 

Static Protected Member Functions

static int find_node (const Element &el, int node)
 
static int find_element_edge (const Element &el, int vn0, int vn1, bool abort=true)
 
static int find_local_face (int geom, int a, int b, int c)
 
static const PointMatrixGetGeomIdentity (Geometry::Type geom)
 

Protected Attributes

int Dim
 
int spaceDim
 dimensions of the elements and the vertex coordinates More...
 
int MyRank
 used in parallel, or when loading a parallel file in serial More...
 
bool Iso
 true if the mesh only contains isotropic refinements More...
 
int Geoms
 bit mask of element geometries present, see InitGeomFlags() More...
 
bool Legacy
 true if the mesh was loaded from the legacy v1.1 format More...
 
HashTable< Nodenodes
 
HashTable< Facefaces
 
BlockArray< Elementelements
 
Array< int > free_element_ids
 
Array< int > root_state
 
Array< double > coordinates
 
int NElements
 
int NVertices
 
int NEdges
 
int NFaces
 
int NGhostElements
 
int NGhostVertices
 
int NGhostEdges
 
int NGhostFaces
 
Array< int > leaf_elements
 finest elements, in Mesh ordering (+ ghosts) More...
 
Array< int > leaf_sfc_index
 natural tree ordering of leaf elements More...
 
Array< int > vertex_nodeId
 vertex-index to node-id map, see UpdateVertices More...
 
NCList face_list
 lazy-initialized list of faces, see GetFaceList More...
 
NCList edge_list
 lazy-initialized list of edges, see GetEdgeList More...
 
NCList vertex_list
 lazy-initialized list of vertices, see GetVertexList More...
 
Array< int > boundary_faces
 subset of all faces, set by BuildFaceList More...
 
Array< char > face_geom
 face geometry by face index, set by OnMeshUpdated More...
 
Table element_vertex
 leaf-element to vertex table, see FindSetNeighbors More...
 
Array< Refinementref_stack
 stack of scheduled refinements (temporary) More...
 
HashTable< Nodeshadow
 temporary storage for reparented nodes More...
 
Array< Triple< int, int, int > > reparents
 scheduled node reparents (tmp) More...
 
Table derefinements
 possible derefinements, see GetDerefinementTable More...
 
CoarseFineTransformations transforms
 storage for data returned by Get[De]RefinementTransforms() More...
 
Array< int > coarse_elements
 state of leaf_elements before Refine(), set by MarkCoarseLevel() More...
 
TmpVertextmp_vertex
 

Static Protected Attributes

static PointMatrix pm_seg_identity
 
static PointMatrix pm_tri_identity
 
static PointMatrix pm_quad_identity
 
static PointMatrix pm_tet_identity
 
static PointMatrix pm_prism_identity
 
static PointMatrix pm_hex_identity
 
static GeomInfo GI [Geometry::NumGeom]
 

Friends

class Mesh
 
class ParNCMesh
 
struct MatrixMap
 
struct PointMatrixHash
 

Detailed Description

A class for non-conforming AMR. The class is not used directly by the user, rather it is an extension of the Mesh class.

In general, the class is used by MFEM as follows:

  1. NCMesh is constructed from elements of an existing Mesh. The elements are copied and become roots of the refinement hierarchy.
  2. Some elements are refined with the Refine() method. Both isotropic and anisotropic refinements of quads/hexes are supported.
  3. A new Mesh is created from NCMesh containing the leaf elements. This new Mesh may have non-conforming (hanging) edges and faces and is the one seen by the user.
  4. FiniteElementSpace asks NCMesh for a list of conforming, master and slave edges/faces and creates the conforming interpolation matrix P.
  5. A continuous/conforming solution is obtained by solving P'*A*P x = P'*b.
  6. Repeat from step 2.

Definition at line 121 of file ncmesh.hpp.

Member Typedef Documentation

◆ RefCoord

typedef std::int64_t mfem::NCMesh::RefCoord

Definition at line 397 of file ncmesh.hpp.

◆ RefPathMap

typedef std::map<std::string, int> mfem::NCMesh::RefPathMap
protected

Definition at line 897 of file ncmesh.hpp.

Constructor & Destructor Documentation

◆ NCMesh() [1/3]

mfem::NCMesh::NCMesh ( const Mesh mesh)
explicit

Definition at line 104 of file ncmesh.cpp.

◆ NCMesh() [2/3]

mfem::NCMesh::NCMesh ( std::istream &  input,
int  version,
int &  curved,
int &  is_nc 
)

Load from a stream. The id header is assumed to have been read already from

Parameters
[in]input.
[in]versionis 10 for the v1.0 NC format, or 1 for the legacy v1.1 format.
[out]curvedis set to 1 if the curvature GridFunction follows after mesh data.
[out]is_nc(again treated as a boolean) is set to 0 if the legacy v1.1 format in fact defines a conforming mesh. See Mesh::Loader for details.

Definition at line 5527 of file ncmesh.cpp.

◆ NCMesh() [3/3]

mfem::NCMesh::NCMesh ( const NCMesh other)

Deep copy of another instance.

Definition at line 204 of file ncmesh.cpp.

◆ ~NCMesh()

mfem::NCMesh::~NCMesh ( )
virtual

Definition at line 243 of file ncmesh.cpp.

Member Function Documentation

◆ AddElement()

int mfem::NCMesh::AddElement ( const Element el)
inlineprotected

Definition at line 612 of file ncmesh.hpp.

◆ BuildEdgeList()

void mfem::NCMesh::BuildEdgeList ( )
protectedvirtual

Reimplemented in mfem::ParNCMesh.

Definition at line 3086 of file ncmesh.cpp.

◆ BuildElementToVertexTable()

void mfem::NCMesh::BuildElementToVertexTable ( )
protected

Definition at line 3404 of file ncmesh.cpp.

◆ BuildFaceList()

void mfem::NCMesh::BuildFaceList ( )
protectedvirtual

Reimplemented in mfem::ParNCMesh.

Definition at line 2966 of file ncmesh.cpp.

◆ BuildVertexList()

void mfem::NCMesh::BuildVertexList ( )
protectedvirtual

Reimplemented in mfem::ParNCMesh.

Definition at line 3189 of file ncmesh.cpp.

◆ CalcVertexPos()

const double * mfem::NCMesh::CalcVertexPos ( int  node) const
protected

Definition at line 2276 of file ncmesh.cpp.

◆ CheckAnisoFace()

void mfem::NCMesh::CheckAnisoFace ( int  vn1,
int  vn2,
int  vn3,
int  vn4,
int  mid12,
int  mid34,
int  level = 0 
)
protected

Definition at line 775 of file ncmesh.cpp.

◆ CheckAnisoPrism()

void mfem::NCMesh::CheckAnisoPrism ( int  vn1,
int  vn2,
int  vn3,
int  vn4,
const Refinement refs,
int  nref 
)
protected

Definition at line 750 of file ncmesh.cpp.

◆ CheckDerefinementNCLevel()

void mfem::NCMesh::CheckDerefinementNCLevel ( const Table deref_table,
Array< int > &  level_ok,
int  max_nc_level 
)
virtual

Check derefinements returned by GetDerefinementTable and mark those that can be done safely so that the maximum NC level condition is not violated. On return, level_ok.Size() == deref_table.Size() and contains 0/1s.

Reimplemented in mfem::ParNCMesh.

Definition at line 1820 of file ncmesh.cpp.

◆ CheckIsoFace()

void mfem::NCMesh::CheckIsoFace ( int  vn1,
int  vn2,
int  vn3,
int  vn4,
int  en1,
int  en2,
int  en3,
int  en4,
int  midf 
)
protected

Definition at line 870 of file ncmesh.cpp.

◆ ClearTransforms()

void mfem::NCMesh::ClearTransforms ( )

Free all internal data created by the above three functions.

Definition at line 4479 of file ncmesh.cpp.

◆ CollectDerefinements()

void mfem::NCMesh::CollectDerefinements ( int  elem,
Array< Connection > &  list 
)
protected

Definition at line 1772 of file ncmesh.cpp.

◆ CollectEdgeVertices()

void mfem::NCMesh::CollectEdgeVertices ( int  v0,
int  v1,
Array< int > &  indices 
)
protected

Definition at line 3334 of file ncmesh.cpp.

◆ CollectIncidentElements()

void mfem::NCMesh::CollectIncidentElements ( int  elem,
const RefCoord  coord[3],
Array< int > &  list 
) const
protected

Definition at line 3777 of file ncmesh.cpp.

◆ CollectLeafElements()

void mfem::NCMesh::CollectLeafElements ( int  elem,
int  state,
Array< int > &  ghosts,
int &  counter 
)
protected

Collect the leaf elements in leaf_elements, and the ghost elements in ghosts. Compute and set the element indices of elements. On quad and hex refined elements tries to order leaf elements along a space-filling curve according to the given state variable.

Definition at line 1923 of file ncmesh.cpp.

◆ CollectQuadFaceVertices()

void mfem::NCMesh::CollectQuadFaceVertices ( int  v0,
int  v1,
int  v2,
int  v3,
Array< int > &  indices 
)
protected

Definition at line 3370 of file ncmesh.cpp.

◆ CollectTriFaceVertices()

void mfem::NCMesh::CollectTriFaceVertices ( int  v0,
int  v1,
int  v2,
Array< int > &  indices 
)
protected

Definition at line 3346 of file ncmesh.cpp.

◆ CopyElements()

void mfem::NCMesh::CopyElements ( int  elem,
const BlockArray< Element > &  tmp_elements 
)
protected

Definition at line 5701 of file ncmesh.cpp.

◆ CountSplits()

void mfem::NCMesh::CountSplits ( int  elem,
int  splits[3] 
) const
protected

Definition at line 5088 of file ncmesh.cpp.

◆ CountTopLevelNodes()

int mfem::NCMesh::CountTopLevelNodes ( ) const
protected

Return the index of the last top-level node plus one.

Definition at line 5517 of file ncmesh.cpp.

◆ DebugDump()

void mfem::NCMesh::DebugDump ( std::ostream &  out) const

Definition at line 6091 of file ncmesh.cpp.

◆ DebugLeafOrder()

void mfem::NCMesh::DebugLeafOrder ( std::ostream &  out) const

Definition at line 6066 of file ncmesh.cpp.

◆ DeleteUnusedFaces()

void mfem::NCMesh::DeleteUnusedFaces ( const Array< int > &  elemFaces)
protected

Definition at line 403 of file ncmesh.cpp.

◆ Derefine()

void mfem::NCMesh::Derefine ( const Array< int > &  derefs)
virtual

Perform a subset of the possible derefinements (see GetDerefinementTable). Note that if anisotropic refinements are present in the mesh, some of the derefinements may have to be skipped to preserve mesh consistency.

Reimplemented in mfem::ParNCMesh.

Definition at line 1849 of file ncmesh.cpp.

◆ DerefineElement()

void mfem::NCMesh::DerefineElement ( int  elem)
protected

Derefine the element elem, does nothing on leaf elements.

Definition at line 1606 of file ncmesh.cpp.

◆ Dimension()

int mfem::NCMesh::Dimension ( ) const
inline

Return the dimension of the NCMesh.

Definition at line 144 of file ncmesh.hpp.

◆ EdgeSplitLevel()

int mfem::NCMesh::EdgeSplitLevel ( int  vn1,
int  vn2 
) const
protected

Definition at line 5037 of file ncmesh.cpp.

◆ ElementSharesEdge()

virtual void mfem::NCMesh::ElementSharesEdge ( int  elem,
int  local,
int  enode 
)
inlineprotectedvirtual

Reimplemented in mfem::ParNCMesh.

Definition at line 727 of file ncmesh.hpp.

◆ ElementSharesFace()

virtual void mfem::NCMesh::ElementSharesFace ( int  elem,
int  local,
int  face 
)
inlineprotectedvirtual

Reimplemented in mfem::ParNCMesh.

Definition at line 726 of file ncmesh.hpp.

◆ ElementSharesVertex()

virtual void mfem::NCMesh::ElementSharesVertex ( int  elem,
int  local,
int  vnode 
)
inlineprotectedvirtual

Reimplemented in mfem::ParNCMesh.

Definition at line 728 of file ncmesh.hpp.

◆ find_element_edge()

int mfem::NCMesh::find_element_edge ( const Element el,
int  vn0,
int  vn1,
bool  abort = true 
)
staticprotected

Definition at line 2624 of file ncmesh.cpp.

◆ find_local_face()

int mfem::NCMesh::find_local_face ( int  geom,
int  a,
int  b,
int  c 
)
staticprotected

Definition at line 2642 of file ncmesh.cpp.

◆ find_node()

int mfem::NCMesh::find_node ( const Element el,
int  node 
)
staticprotected

Definition at line 2604 of file ncmesh.cpp.

◆ FindEdgeElements()

void mfem::NCMesh::FindEdgeElements ( int  vn1,
int  vn2,
int  vn3,
int  vn4,
Array< MeshId > &  prisms 
) const
protected

Definition at line 703 of file ncmesh.cpp.

◆ FindFaceNodes()

void mfem::NCMesh::FindFaceNodes ( int  face,
int  node[4] 
)
protected

Definition at line 4940 of file ncmesh.cpp.

◆ FindMidEdgeNode()

int mfem::NCMesh::FindMidEdgeNode ( int  node1,
int  node2 
) const
protected

Definition at line 284 of file ncmesh.cpp.

◆ FindNeighbors()

void mfem::NCMesh::FindNeighbors ( int  elem,
Array< int > &  neighbors,
const Array< int > *  search_set = NULL 
)
protected

Return all vertex-, edge- and face-neighbors of a single element. You can limit the number of elements being checked using 'search_set'. The complexity of the function is linear in the size of the search set.

Definition at line 3587 of file ncmesh.cpp.

◆ FindNodeExt()

int mfem::NCMesh::FindNodeExt ( const Element el,
int  node,
bool  abort = true 
)
protected

Extended version of find_node: works if 'el' is refined.

Definition at line 2614 of file ncmesh.cpp.

◆ FindSetNeighbors()

void mfem::NCMesh::FindSetNeighbors ( const Array< char > &  elem_set,
Array< int > *  neighbors,
Array< char > *  neighbor_set = NULL 
)
protected

Return all vertex-, edge- and face-neighbors of a set of elements. The neighbors are returned as a list (neighbors != NULL), as a set (neighbor_set != NULL), or both. The sizes of the set arrays must match that of leaf_elements. The function is intended to be used for large sets of elements and its complexity is linear in the number of leaf elements in the mesh.

Definition at line 3484 of file ncmesh.cpp.

◆ FindVertexCousins()

void mfem::NCMesh::FindVertexCousins ( int  elem,
int  local,
Array< int > &  cousins 
) const
protected

Return elements neighboring to a local vertex of element 'elem'. Only elements from within the same refinement tree ('cousins') are returned. Complexity is proportional to the depth of elem's refinement tree.

Definition at line 3800 of file ncmesh.cpp.

◆ ForceRefinement()

void mfem::NCMesh::ForceRefinement ( int  vn1,
int  vn2,
int  vn3,
int  vn4 
)
protected

Definition at line 645 of file ncmesh.cpp.

◆ FreeElement()

void mfem::NCMesh::FreeElement ( int  id)
inlineprotected

Definition at line 625 of file ncmesh.hpp.

◆ GetBoundaryClosure()

void mfem::NCMesh::GetBoundaryClosure ( const Array< int > &  bdr_attr_is_ess,
Array< int > &  bdr_vertices,
Array< int > &  bdr_edges 
)
virtual

Get a list of vertices (2D/3D) and edges (3D) that coincide with boundary elements with the specified attributes (marked in 'bdr_attr_is_ess'). In 3D this function also reveals "hidden" boundary edges. In parallel it helps identifying boundary vertices/edges affected by non-local boundary elements.

Reimplemented in mfem::ParNCMesh.

Definition at line 4964 of file ncmesh.cpp.

◆ GetDerefinementTable()

const Table & mfem::NCMesh::GetDerefinementTable ( )

Return a list of derefinement opportunities. Each row of the table contains Mesh indices of existing elements that can be derefined to form a single new coarse element. Row numbers are then passed to Derefine. This function works both in serial and parallel.

Definition at line 1805 of file ncmesh.cpp.

◆ GetDerefinementTransforms()

const CoarseFineTransformations & mfem::NCMesh::GetDerefinementTransforms ( )

After derefinement, calculate the relations of previous fine elements (some of which may no longer exist) to the current leaf elements. Unlike for refinement, Derefine() may only be called once before this function so there is no MarkFineLevel().

Definition at line 4399 of file ncmesh.cpp.

◆ GetEdgeList()

const NCList& mfem::NCMesh::GetEdgeList ( )
inline

Return the current list of conforming and nonconforming edges.

Definition at line 260 of file ncmesh.hpp.

◆ GetEdgeMaster() [1/2]

int mfem::NCMesh::GetEdgeMaster ( int  v1,
int  v2 
) const

Given an edge (by its vertex indices v1 and v2) return the first (geometric) parent edge that exists in the Mesh or -1 if there is no such parent.

Definition at line 4884 of file ncmesh.cpp.

◆ GetEdgeMaster() [2/2]

int mfem::NCMesh::GetEdgeMaster ( int  node) const
protected

Definition at line 4852 of file ncmesh.cpp.

◆ GetEdgeNCOrientation()

int mfem::NCMesh::GetEdgeNCOrientation ( const MeshId edge_id) const

Return "NC" orientation of an edge. As opposed to standard Mesh edge orientation based on vertex IDs, "NC" edge orientation follows the local edge orientation within the element 'edge_id.element' and is thus processor independent. TODO: this seems only partially true?

Definition at line 4802 of file ncmesh.cpp.

◆ GetEdgeVertices()

void mfem::NCMesh::GetEdgeVertices ( const MeshId edge_id,
int  vert_index[2],
bool  oriented = true 
) const

Return Mesh vertex indices of an edge identified by 'edge_id'.

Definition at line 4783 of file ncmesh.cpp.

◆ GetElementDepth()

int mfem::NCMesh::GetElementDepth ( int  i) const

Return the distance of leaf 'i' from the root.

Definition at line 4893 of file ncmesh.cpp.

◆ GetElementFacesAttributes()

void mfem::NCMesh::GetElementFacesAttributes ( int  i,
Array< int > &  faces,
Array< int > &  fattr 
) const

Return the faces and face attributes of leaf element 'i'.

Definition at line 4919 of file ncmesh.cpp.

◆ GetElementGeometry()

Geometry::Type mfem::NCMesh::GetElementGeometry ( int  index) const
inline

Return element geometry type. index is the Mesh element number.

Definition at line 358 of file ncmesh.hpp.

◆ GetElementSizeReduction()

int mfem::NCMesh::GetElementSizeReduction ( int  i) const

Return the size reduction compared to the root element (ignoring local stretching and curvature).

Definition at line 4905 of file ncmesh.cpp.

◆ GetFace()

NCMesh::Face * mfem::NCMesh::GetFace ( Element elem,
int  face_no 
)
protected

Definition at line 428 of file ncmesh.cpp.

◆ GetFaceGeometry()

Geometry::Type mfem::NCMesh::GetFaceGeometry ( int  index) const
inline

Return face geometry type. index is the Mesh face number.

Definition at line 362 of file ncmesh.hpp.

◆ GetFaceList()

const NCList& mfem::NCMesh::GetFaceList ( )
inline

Return the current list of conforming and nonconforming faces.

Definition at line 253 of file ncmesh.hpp.

◆ GetFaceVerticesEdges()

int mfem::NCMesh::GetFaceVerticesEdges ( const MeshId face_id,
int  vert_index[4],
int  edge_index[4],
int  edge_orientation[4] 
) const

Return Mesh vertex and edge indices of a face identified by 'face_id'. The return value is the number of face vertices.

Definition at line 4814 of file ncmesh.cpp.

◆ GetGeomIdentity()

const NCMesh::PointMatrix & mfem::NCMesh::GetGeomIdentity ( Geometry::Type  geom)
staticprotected

Definition at line 3864 of file ncmesh.cpp.

◆ GetLimitRefinements()

void mfem::NCMesh::GetLimitRefinements ( Array< Refinement > &  refinements,
int  max_level 
)
protected

Definition at line 5171 of file ncmesh.cpp.

◆ GetMeshComponents()

void mfem::NCMesh::GetMeshComponents ( Mesh mesh) const
protected

Fill Mesh::{vertices,elements,boundary} for the current finest level.

Definition at line 2301 of file ncmesh.cpp.

◆ GetMidEdgeNode()

int mfem::NCMesh::GetMidEdgeNode ( int  node1,
int  node2 
)
protected

Definition at line 300 of file ncmesh.cpp.

◆ GetMidFaceNode()

int mfem::NCMesh::GetMidFaceNode ( int  en1,
int  en2,
int  en3,
int  en4 
)
protected

Definition at line 307 of file ncmesh.cpp.

◆ GetNCList()

const NCList& mfem::NCMesh::GetNCList ( int  entity)
inline

Return vertex/edge/face list (entity = 0/1/2, respectively).

Definition at line 275 of file ncmesh.hpp.

◆ GetNEdges()

int mfem::NCMesh::GetNEdges ( ) const
inline

Return the number of edges in the NCMesh.

Definition at line 151 of file ncmesh.hpp.

◆ GetNFaces()

int mfem::NCMesh::GetNFaces ( void  ) const
inline

Return the number of (2D) faces in the NCMesh.

Definition at line 153 of file ncmesh.hpp.

◆ GetNGhostElements()

virtual int mfem::NCMesh::GetNGhostElements ( ) const
inlinevirtual

Reimplemented in mfem::ParNCMesh.

Definition at line 154 of file ncmesh.hpp.

◆ GetNumRootElements()

int mfem::NCMesh::GetNumRootElements ( )
inline

Return the number of root elements.

Definition at line 366 of file ncmesh.hpp.

◆ GetNVertices()

int mfem::NCMesh::GetNVertices ( ) const
inline

Return the number of vertices in the NCMesh.

Definition at line 149 of file ncmesh.hpp.

◆ GetPointMatrix()

void mfem::NCMesh::GetPointMatrix ( Geometry::Type  geom,
const char *  ref_path,
DenseMatrix matrix 
)
protected

Definition at line 3880 of file ncmesh.cpp.

◆ GetRefinementTransforms()

const CoarseFineTransformations & mfem::NCMesh::GetRefinementTransforms ( )

After refinement, calculate the relation of each fine element to its parent coarse element. Note that Refine() or LimitNCLevel() can be called multiple times between MarkCoarseLevel() and this function.

Definition at line 4348 of file ncmesh.cpp.

◆ GetVertexList()

const NCList& mfem::NCMesh::GetVertexList ( )
inline

Return a list of vertices (in 'conforming'); this function is provided for uniformity/completeness. Needed in ParNCMesh/ParFESpace.

Definition at line 268 of file ncmesh.hpp.

◆ GetVertexRootCoord()

int mfem::NCMesh::GetVertexRootCoord ( int  elem,
RefCoord  coord[3] 
) const
protected

Definition at line 3729 of file ncmesh.cpp.

◆ GridSfcOrdering2D()

void mfem::NCMesh::GridSfcOrdering2D ( int  width,
int  height,
Array< int > &  coords 
)
static

Return a space filling curve for a rectangular grid of elements. Implemented is a generalized Hilbert curve for arbitrary grid dimensions. If the width is odd, height should be odd too, otherwise one diagonal (vertex-neighbor) step cannot be avoided in the curve. Even dimensions are recommended.

Definition at line 4736 of file ncmesh.cpp.

◆ GridSfcOrdering3D()

void mfem::NCMesh::GridSfcOrdering3D ( int  width,
int  height,
int  depth,
Array< int > &  coords 
)
static

Return a space filling curve for a 3D rectangular grid of elements. The Hilbert-curve-like algorithm works well for even dimensions. For odd width/height/depth it tends to produce some diagonal (edge-neighbor) steps. Even dimensions are recommended.

Definition at line 4751 of file ncmesh.cpp.

◆ HavePrisms()

bool mfem::NCMesh::HavePrisms ( ) const
inlineprotected

Return true if the mesh contains prism elements.

Definition at line 587 of file ncmesh.hpp.

◆ HaveTets()

bool mfem::NCMesh::HaveTets ( ) const
inlineprotected

Return true if the mesh contains tetrahedral elements.

Definition at line 590 of file ncmesh.hpp.

◆ InitDerefTransforms()

void mfem::NCMesh::InitDerefTransforms ( )
protected

Definition at line 1885 of file ncmesh.cpp.

◆ InitGeomFlags()

void mfem::NCMesh::InitGeomFlags ( )
protected

Compute the Geometry::Type present in the root elements (coarse elements) and set Geoms bitmask accordingly.

Definition at line 222 of file ncmesh.cpp.

◆ InitRootElements()

void mfem::NCMesh::InitRootElements ( )
protected

Count root elements and initialize root_state.

Definition at line 5477 of file ncmesh.cpp.

◆ InitRootState()

void mfem::NCMesh::InitRootState ( int  root_count)
protected

Try to find a space-filling curve friendly orientation of the root elements: set 'root_state' based on the ordering of coarse elements. Note that the coarse mesh itself must be ordered as an SFC by e.g. Mesh::GetGeckoElementOrdering.

Definition at line 2199 of file ncmesh.cpp.

◆ IsGhost()

bool mfem::NCMesh::IsGhost ( const Element el) const
inlineprotected

Return true if the Element el is a ghost element.

Definition at line 593 of file ncmesh.hpp.

◆ IsLegacyLoaded()

bool mfem::NCMesh::IsLegacyLoaded ( ) const
inline

I/O: Return true if the mesh was loaded from the legacy v1.1 format.

Definition at line 384 of file ncmesh.hpp.

◆ LegacyToNewVertexOrdering()

void mfem::NCMesh::LegacyToNewVertexOrdering ( Array< int > &  order) const

I/O: Return a map from old (v1.1) vertex indices to new vertex indices.

Definition at line 5948 of file ncmesh.cpp.

◆ LimitNCLevel()

void mfem::NCMesh::LimitNCLevel ( int  max_nc_level)
virtual

Check the mesh and potentially refine some elements so that the maximum difference of refinement levels between adjacent elements is not greater than 'max_nc_level'.

Reimplemented in mfem::ParNCMesh.

Definition at line 5201 of file ncmesh.cpp.

◆ LoadBoundary()

void mfem::NCMesh::LoadBoundary ( std::istream &  input)
protected

Load the "boundary" section of the mesh file.

Definition at line 5310 of file ncmesh.cpp.

◆ LoadCoarseElements()

void mfem::NCMesh::LoadCoarseElements ( std::istream &  input)
protected

Load the element refinement hierarchy from a legacy mesh file.

Definition at line 5719 of file ncmesh.cpp.

◆ LoadCoordinates()

void mfem::NCMesh::LoadCoordinates ( std::istream &  input)
protected

Load the "coordinates" section of the mesh file.

Definition at line 5368 of file ncmesh.cpp.

◆ LoadLegacyFormat()

void mfem::NCMesh::LoadLegacyFormat ( std::istream &  input,
int &  curved,
int &  is_nc 
)
protected

Load the deprecated MFEM mesh v1.1 format for backward compatibility.

Definition at line 5790 of file ncmesh.cpp.

◆ LoadVertexParents()

void mfem::NCMesh::LoadVertexParents ( std::istream &  input)
protected

Load the vertex parent hierarchy from a mesh file.

Definition at line 5248 of file ncmesh.cpp.

◆ MakeTopologyOnly()

void mfem::NCMesh::MakeTopologyOnly ( )
inlineprotected

Delete top-level vertex coordinates if the Mesh became curved, e.g., by calling Mesh::SetCurvature or otherwise setting the Nodes.

Definition at line 413 of file ncmesh.hpp.

◆ MarkCoarseLevel()

void mfem::NCMesh::MarkCoarseLevel ( )

Remember the current layer of leaf elements before the mesh is refined. Needed by GetRefinementTransforms(), must be called before Refine().

Definition at line 4300 of file ncmesh.cpp.

◆ MemoryUsage()

std::size_t mfem::NCMesh::MemoryUsage ( ) const

Return total number of bytes allocated.

Definition at line 6015 of file ncmesh.cpp.

◆ NeighborExpand()

void mfem::NCMesh::NeighborExpand ( const Array< int > &  elems,
Array< int > &  expanded,
const Array< int > *  search_set = NULL 
)
protected

Expand a set of elements by all vertex-, edge- and face-neighbors. The output array 'expanded' will contain all items from 'elems' (provided they are in 'search_set') plus their neighbors. The neighbor search can be limited to the optional search set. The complexity is linear in the sum of the sizes of 'elems' and 'search_set'.

Definition at line 3670 of file ncmesh.cpp.

◆ NewHexahedron()

int mfem::NCMesh::NewHexahedron ( int  n0,
int  n1,
int  n2,
int  n3,
int  n4,
int  n5,
int  n6,
int  n7,
int  attr,
int  fattr0,
int  fattr1,
int  fattr2,
int  fattr3,
int  fattr4,
int  fattr5 
)
protected

Definition at line 465 of file ncmesh.cpp.

◆ NewMeshElement()

mfem::Element * mfem::NCMesh::NewMeshElement ( int  geom) const
protected

Definition at line 2262 of file ncmesh.cpp.

◆ NewQuadrilateral()

int mfem::NCMesh::NewQuadrilateral ( int  n0,
int  n1,
int  n2,
int  n3,
int  attr,
int  eattr0,
int  eattr1,
int  eattr2,
int  eattr3 
)
protected

Definition at line 553 of file ncmesh.cpp.

◆ NewSegment()

int mfem::NCMesh::NewSegment ( int  n0,
int  n1,
int  attr,
int  vattr1,
int  vattr2 
)
protected

Definition at line 605 of file ncmesh.cpp.

◆ NewTetrahedron()

int mfem::NCMesh::NewTetrahedron ( int  n0,
int  n1,
int  n2,
int  n3,
int  attr,
int  fattr0,
int  fattr1,
int  fattr2,
int  fattr3 
)
protected

Definition at line 527 of file ncmesh.cpp.

◆ NewTriangle()

int mfem::NCMesh::NewTriangle ( int  n0,
int  n1,
int  n2,
int  attr,
int  eattr0,
int  eattr1,
int  eattr2 
)
protected

Definition at line 579 of file ncmesh.cpp.

◆ NewWedge()

int mfem::NCMesh::NewWedge ( int  n0,
int  n1,
int  n2,
int  n3,
int  n4,
int  n5,
int  attr,
int  fattr0,
int  fattr1,
int  fattr2,
int  fattr3,
int  fattr4 
)
protected

Definition at line 495 of file ncmesh.cpp.

◆ OnMeshUpdated()

void mfem::NCMesh::OnMeshUpdated ( Mesh mesh)
protected

Get edge and face numbering from 'mesh' (i.e., set all Edge::index and Face::index) after a new mesh was created from us.

Definition at line 2396 of file ncmesh.cpp.

◆ operator=()

NCMesh& mfem::NCMesh::operator= ( NCMesh )
delete

Copy assignment not supported.

◆ Print()

void mfem::NCMesh::Print ( std::ostream &  out) const

I/O: Print the mesh in "MFEM NC mesh v1.0" format.

Definition at line 5398 of file ncmesh.cpp.

◆ PrintBoundary()

int mfem::NCMesh::PrintBoundary ( std::ostream *  out) const
protected

Print the "boundary" section of the mesh file. If out == NULL, only return the number of boundary elements.

Definition at line 5271 of file ncmesh.cpp.

◆ PrintCoordinates()

void mfem::NCMesh::PrintCoordinates ( std::ostream &  out) const
protected

Print the "coordinates" section of the mesh file.

Definition at line 5350 of file ncmesh.cpp.

◆ PrintMemoryDetail()

int mfem::NCMesh::PrintMemoryDetail ( ) const

Definition at line 6038 of file ncmesh.cpp.

◆ PrintVertexParents()

int mfem::NCMesh::PrintVertexParents ( std::ostream *  out) const
protected

Print the "vertex_parents" section of the mesh file.

Definition at line 5219 of file ncmesh.cpp.

◆ QuadFaceSplitLevel()

void mfem::NCMesh::QuadFaceSplitLevel ( int  vn1,
int  vn2,
int  vn3,
int  vn4,
int &  h_level,
int &  v_level 
) const
protected

Definition at line 5061 of file ncmesh.cpp.

◆ QuadFaceSplitType()

int mfem::NCMesh::QuadFaceSplitType ( int  v1,
int  v2,
int  v3,
int  v4,
int  mid[5] = NULL 
) const
protected

Definition at line 2540 of file ncmesh.cpp.

◆ ReferenceElement()

void mfem::NCMesh::ReferenceElement ( int  elem)
protected

Definition at line 315 of file ncmesh.cpp.

◆ Refine()

void mfem::NCMesh::Refine ( const Array< Refinement > &  refinements)
virtual

Perform the given batch of refinements. Please note that in the presence of anisotropic splits additional refinements may be necessary to keep the mesh consistent. However, the function always performs at least the requested refinements.

Reimplemented in mfem::ParNCMesh.

Definition at line 1524 of file ncmesh.cpp.

◆ RefineElement()

void mfem::NCMesh::RefineElement ( int  elem,
char  ref_type 
)
protected

Refine the element elem with the refinement ref_type (c.f. Refinement::enum)

Definition at line 887 of file ncmesh.cpp.

◆ RegisterFaces()

void mfem::NCMesh::RegisterFaces ( int  elem,
int *  fattr = NULL 
)
protected

Definition at line 389 of file ncmesh.cpp.

◆ ReorderFacePointMat()

int mfem::NCMesh::ReorderFacePointMat ( int  v0,
int  v1,
int  v2,
int  v3,
int  elem,
const PointMatrix pm,
PointMatrix reordered 
) const
protected

Definition at line 2720 of file ncmesh.cpp.

◆ ReparentNode()

void mfem::NCMesh::ReparentNode ( int  node,
int  new_p1,
int  new_p2 
)
protected

Definition at line 268 of file ncmesh.cpp.

◆ RetrieveNode()

int mfem::NCMesh::RetrieveNode ( const Element el,
int  index 
)
protected

Return el.node[index] correctly, even if the element is refined.

Definition at line 1570 of file ncmesh.cpp.

◆ SetDerefMatrixCodes()

void mfem::NCMesh::SetDerefMatrixCodes ( int  parent,
Array< int > &  fine_coarse 
)
protected

Definition at line 1904 of file ncmesh.cpp.

◆ SpaceDimension()

int mfem::NCMesh::SpaceDimension ( ) const
inline

Return the space dimension of the NCMesh.

Definition at line 146 of file ncmesh.hpp.

◆ TraverseEdge()

void mfem::NCMesh::TraverseEdge ( int  vn0,
int  vn1,
double  t0,
double  t1,
int  flags,
int  level,
MatrixMap matrix_map 
)
protected

Definition at line 3058 of file ncmesh.cpp.

◆ TraverseQuadFace()

void mfem::NCMesh::TraverseQuadFace ( int  vn0,
int  vn1,
int  vn2,
int  vn3,
const PointMatrix pm,
int  level,
Face eface[4],
MatrixMap matrix_map 
)
protected

Definition at line 2751 of file ncmesh.cpp.

◆ TraverseRefinements()

void mfem::NCMesh::TraverseRefinements ( int  elem,
int  coarse_index,
std::string &  ref_path,
RefPathMap map 
)
protected

Definition at line 4314 of file ncmesh.cpp.

◆ TraverseTetEdge()

void mfem::NCMesh::TraverseTetEdge ( int  vn0,
int  vn1,
const Point p0,
const Point p1,
MatrixMap matrix_map 
)
protected

Definition at line 2870 of file ncmesh.cpp.

◆ TraverseTriFace()

bool mfem::NCMesh::TraverseTriFace ( int  vn0,
int  vn1,
int  vn2,
const PointMatrix pm,
int  level,
MatrixMap matrix_map 
)
protected

Definition at line 2907 of file ncmesh.cpp.

◆ TriFaceSplit()

bool mfem::NCMesh::TriFaceSplit ( int  v1,
int  v2,
int  v3,
int  mid[3] = NULL 
) const
protected

Definition at line 2587 of file ncmesh.cpp.

◆ TriFaceSplitLevel()

int mfem::NCMesh::TriFaceSplitLevel ( int  vn1,
int  vn2,
int  vn3 
) const
protected

Definition at line 5044 of file ncmesh.cpp.

◆ Trim()

void mfem::NCMesh::Trim ( )
virtual

Save memory by releasing all non-essential and cached data.

Reimplemented in mfem::ParNCMesh.

Definition at line 5972 of file ncmesh.cpp.

◆ UnreferenceElement()

void mfem::NCMesh::UnreferenceElement ( int  elem,
Array< int > &  elemFaces 
)
protected

Definition at line 346 of file ncmesh.cpp.

◆ Update()

void mfem::NCMesh::Update ( )
protectedvirtual

Apart from the primary data structure, which is the element/node/face hierarchy, there is secondary data that is derived from the primary data and needs to be updated when the primary data changes. Update() takes care of that and needs to be called after each refinement and derefinement.

Reimplemented in mfem::ParNCMesh.

Definition at line 231 of file ncmesh.cpp.

◆ UpdateElementToVertexTable()

void mfem::NCMesh::UpdateElementToVertexTable ( )
inlineprotected

Definition at line 766 of file ncmesh.hpp.

◆ UpdateLeafElements()

void mfem::NCMesh::UpdateLeafElements ( )
protected

Update the leaf elements indices in leaf_elements.

Definition at line 1991 of file ncmesh.cpp.

◆ UpdateVertices()

void mfem::NCMesh::UpdateVertices ( )
protected

This method assigns indices to vertices (Node::vert_index) that will be seen by the Mesh class and the rest of MFEM.

We must be careful to:

  1. Stay compatible with the conforming code, which expects top-level (original) vertices to be indexed first, otherwise GridFunctions defined on a conforming mesh would no longer be valid when the mesh is converted to an NC mesh.
  2. Make sure serial NCMesh is compatible with the parallel ParNCMesh, so it is possible to read parallel partial solutions in serial code (e.g., serial GLVis). This means handling ghost elements, if present.
  3. Assign vertices in a globally consistent order for parallel meshes: if two vertices i,j are shared by two ranks r1,r2, and i<j on r1, then i<j on r2 as well. This is true for top-level vertices but also for the remaining shared vertices thanks to the globally consistent SFC ordering of the leaf elements. This property reduces communication and simplifies ParNCMesh. update Vertex::index and vertex_nodeId

Definition at line 2019 of file ncmesh.cpp.

◆ ZeroRootStates()

bool mfem::NCMesh::ZeroRootStates ( ) const
protected

Return true if all root_states are zero.

Definition at line 5389 of file ncmesh.cpp.

Friends And Related Function Documentation

◆ MatrixMap

friend struct MatrixMap
friend

Definition at line 997 of file ncmesh.hpp.

◆ Mesh

friend class Mesh
friend

Definition at line 402 of file ncmesh.hpp.

◆ ParNCMesh

friend class ParNCMesh
friend

Definition at line 996 of file ncmesh.hpp.

◆ PointMatrixHash

friend struct PointMatrixHash
friend

Definition at line 998 of file ncmesh.hpp.

Member Data Documentation

◆ boundary_faces

Array<int> mfem::NCMesh::boundary_faces
protected

subset of all faces, set by BuildFaceList

Definition at line 539 of file ncmesh.hpp.

◆ coarse_elements

Array<int> mfem::NCMesh::coarse_elements
protected

state of leaf_elements before Refine(), set by MarkCoarseLevel()

Definition at line 906 of file ncmesh.hpp.

◆ coordinates

Array<double> mfem::NCMesh::coordinates
protected

Coordinates of top-level vertices (organized as triples). If empty, the Mesh is curved (Nodes != NULL) and NCMesh is topology-only.

Definition at line 512 of file ncmesh.hpp.

◆ derefinements

Table mfem::NCMesh::derefinements
protected

possible derefinements, see GetDerefinementTable

Definition at line 602 of file ncmesh.hpp.

◆ Dim

int mfem::NCMesh::Dim
protected

Definition at line 418 of file ncmesh.hpp.

◆ edge_list

NCList mfem::NCMesh::edge_list
protected

lazy-initialized list of edges, see GetEdgeList

Definition at line 536 of file ncmesh.hpp.

◆ element_vertex

Table mfem::NCMesh::element_vertex
protected

leaf-element to vertex table, see FindSetNeighbors

Definition at line 542 of file ncmesh.hpp.

◆ elements

BlockArray<Element> mfem::NCMesh::elements
protected

Definition at line 502 of file ncmesh.hpp.

◆ face_geom

Array<char> mfem::NCMesh::face_geom
protected

face geometry by face index, set by OnMeshUpdated

Definition at line 540 of file ncmesh.hpp.

◆ face_list

NCList mfem::NCMesh::face_list
protected

lazy-initialized list of faces, see GetFaceList

Definition at line 535 of file ncmesh.hpp.

◆ faces

HashTable<Face> mfem::NCMesh::faces
protected

Definition at line 500 of file ncmesh.hpp.

◆ free_element_ids

Array<int> mfem::NCMesh::free_element_ids
protected

Definition at line 503 of file ncmesh.hpp.

◆ Geoms

int mfem::NCMesh::Geoms
protected

bit mask of element geometries present, see InitGeomFlags()

Definition at line 421 of file ncmesh.hpp.

◆ GI

NCMesh::GeomInfo mfem::NCMesh::GI
staticprotected

Definition at line 988 of file ncmesh.hpp.

◆ Iso

bool mfem::NCMesh::Iso
protected

true if the mesh only contains isotropic refinements

Definition at line 420 of file ncmesh.hpp.

◆ leaf_elements

Array<int> mfem::NCMesh::leaf_elements
protected

finest elements, in Mesh ordering (+ ghosts)

Definition at line 531 of file ncmesh.hpp.

◆ leaf_sfc_index

Array<int> mfem::NCMesh::leaf_sfc_index
protected

natural tree ordering of leaf elements

Definition at line 532 of file ncmesh.hpp.

◆ Legacy

bool mfem::NCMesh::Legacy
protected

true if the mesh was loaded from the legacy v1.1 format

Definition at line 422 of file ncmesh.hpp.

◆ MyRank

int mfem::NCMesh::MyRank
protected

used in parallel, or when loading a parallel file in serial

Definition at line 419 of file ncmesh.hpp.

◆ NEdges

int mfem::NCMesh::NEdges
protected

Definition at line 525 of file ncmesh.hpp.

◆ NElements

int mfem::NCMesh::NElements
protected

Definition at line 525 of file ncmesh.hpp.

◆ NFaces

int mfem::NCMesh::NFaces
protected

Definition at line 525 of file ncmesh.hpp.

◆ NGhostEdges

int mfem::NCMesh::NGhostEdges
protected

Definition at line 529 of file ncmesh.hpp.

◆ NGhostElements

int mfem::NCMesh::NGhostElements
protected

Definition at line 529 of file ncmesh.hpp.

◆ NGhostFaces

int mfem::NCMesh::NGhostFaces
protected

Definition at line 529 of file ncmesh.hpp.

◆ NGhostVertices

int mfem::NCMesh::NGhostVertices
protected

Definition at line 529 of file ncmesh.hpp.

◆ nodes

HashTable<Node> mfem::NCMesh::nodes
protected

Definition at line 499 of file ncmesh.hpp.

◆ NVertices

int mfem::NCMesh::NVertices
protected

Definition at line 525 of file ncmesh.hpp.

◆ pm_hex_identity

NCMesh::PointMatrix mfem::NCMesh::pm_hex_identity
staticprotected

Definition at line 890 of file ncmesh.hpp.

◆ pm_prism_identity

NCMesh::PointMatrix mfem::NCMesh::pm_prism_identity
staticprotected

Definition at line 889 of file ncmesh.hpp.

◆ pm_quad_identity

NCMesh::PointMatrix mfem::NCMesh::pm_quad_identity
staticprotected

Definition at line 887 of file ncmesh.hpp.

◆ pm_seg_identity

NCMesh::PointMatrix mfem::NCMesh::pm_seg_identity
staticprotected

Definition at line 885 of file ncmesh.hpp.

◆ pm_tet_identity

NCMesh::PointMatrix mfem::NCMesh::pm_tet_identity
staticprotected

Definition at line 888 of file ncmesh.hpp.

◆ pm_tri_identity

NCMesh::PointMatrix mfem::NCMesh::pm_tri_identity
staticprotected

Definition at line 886 of file ncmesh.hpp.

◆ ref_stack

Array<Refinement> mfem::NCMesh::ref_stack
protected

stack of scheduled refinements (temporary)

Definition at line 598 of file ncmesh.hpp.

◆ reparents

Array<Triple<int, int, int> > mfem::NCMesh::reparents
protected

scheduled node reparents (tmp)

Definition at line 600 of file ncmesh.hpp.

◆ root_state

Array<int> mfem::NCMesh::root_state
protected

Initial traversal state (~ element orientation) for each root element NOTE: M = root_state.Size() is the number of root elements. NOTE: the first M items of 'elements' is the coarse mesh.

Definition at line 508 of file ncmesh.hpp.

◆ shadow

HashTable<Node> mfem::NCMesh::shadow
protected

temporary storage for reparented nodes

Definition at line 599 of file ncmesh.hpp.

◆ spaceDim

int mfem::NCMesh::spaceDim
protected

dimensions of the elements and the vertex coordinates

Definition at line 418 of file ncmesh.hpp.

◆ tmp_vertex

TmpVertex* mfem::NCMesh::tmp_vertex
mutableprotected

Definition at line 921 of file ncmesh.hpp.

◆ transforms

CoarseFineTransformations mfem::NCMesh::transforms
protected

storage for data returned by Get[De]RefinementTransforms()

Definition at line 903 of file ncmesh.hpp.

◆ vertex_list

NCList mfem::NCMesh::vertex_list
protected

lazy-initialized list of vertices, see GetVertexList

Definition at line 537 of file ncmesh.hpp.

◆ vertex_nodeId

Array<int> mfem::NCMesh::vertex_nodeId
protected

vertex-index to node-id map, see UpdateVertices

Definition at line 533 of file ncmesh.hpp.


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