Derived adjacencies

const GridRegionTypes{Ti} = Union{VectorOfConstants{Ti}, Array{Ti, 1}}

Array type for region numbers of grid items. If all items share the same region, it can be stored in an economical form as a VectorOfConstants, as used e.g. by CellRegions.

abstract type BEdgeAssemblyGroups <: AbstractGridAdjacency

Adjacency describing assembly groups for boundary edges

abstract type BEdgeEdges <: AbstractGridIntegerArray1D

Vector with edge numbers of boundary edges

abstract type BEdgeGeometries <: AbstractElementGeometries

Vector with boundary edge geometries

abstract type BEdgeNodes <: AbstractGridAdjacency

Adjacency describing nodes for boundary edges. If provided externally (e.g. by the seven-array simplexgrid constructor), it defines the boundary edge numbering: dependent components (BEdgeEdges, BFaceEdges, BFaceEdgeSigns) are matched to it and it is never modified by lazy component creation.

abstract type BEdgeVolumes <: AbstractGridFloatArray1D

Vector with boundary edge volumes

abstract type BFaceAssemblyGroups <: AbstractGridAdjacency

Adjacency describing assembly groups for bfaces

abstract type BFaceCellPos <: AbstractGridIntegerArray1D

Vector with local positions of bfaces in their adjacent cell

abstract type BFaceEdgeSigns <: AbstractGridAdjacency

Adjacency describing orientation signs (+1/-1) of boundary face edges relative to the orientation of the corresponding entries in BEdgeNodes. It is instantiated together with BFaceEdges.

abstract type BFaceEdges <: AbstractGridAdjacency

Adjacency describing edges per boundary or interior face

abstract type BFaceFaces <: AbstractGridIntegerArray1D

Vector with face numbers of boundary faces

abstract type BFaceNodesCanonical <: AbstractGridAdjacency

Adjacency describing nodes of boundary faces in the node order of their associated faces (grid[FaceNodes][:, grid[BFaceFaces]), i.e. consistently oriented with respect to the owning cells. Unlike grid[BFaceNodes], which keeps the node order provided by the user and is never modified by lazy component creation, this component provides the canonical orientation view for consumers (e.g. boundary subgrid creation) that need bface-local node order to coincide with face-local node order. It is instantiated together with BFaceFaces.

abstract type BFaceVolumes <: AbstractGridFloatArray1D

Vector with boundary face volumes

abstract type CellAssemblyGroups <: AbstractGridAdjacency

Adjacency describing assembly groups for cells

abstract type CellEdgeSigns <: AbstractGridAdjacency

Adjacency describing edge signs for cells

abstract type CellEdges <: AbstractGridAdjacency

Adjacency describing edges for cells

abstract type CellFaceOrientations <: AbstractGridAdjacency

Adjacency describing face orientations for cells

abstract type CellFaceSigns <: AbstractGridAdjacency

Adjacency describing face signs for cells

abstract type CellFaces <: AbstractGridAdjacency

Adjacency describing faces for cells

abstract type CellVolumes <: AbstractGridFloatArray1D

Vector of cell volumes

abstract type EdgeAssemblyGroups <: AbstractGridAdjacency

Adjacency describing assembly groups for edges

abstract type EdgeCells <: AbstractGridAdjacency

Adjacency describing cells for edges

abstract type EdgeGeometries <: AbstractElementGeometries

Vector with edge geometries

abstract type EdgeNodes <: AbstractGridAdjacency

Adjacency describing nodes for edges

abstract type EdgeRegions <: AbstractElementRegions

Vector with edge regions

abstract type EdgeTangents <: AbstractGridFloatArray2D

Matrix with edge tangents

abstract type EdgeVolumes <: AbstractGridFloatArray1D

Vector with edge volumes

abstract type FaceAssemblyGroups <: AbstractGridAdjacency

Adjacency describing assembly groups for faces

abstract type FaceCells <: AbstractGridAdjacency

Adjacency describing cells for faces

abstract type FaceEdgeSigns <: AbstractGridAdjacency

Adjacency describing edges signs for faces

abstract type FaceEdges <: AbstractGridAdjacency

Adjacency describing edges for faces

abstract type FaceGeometries <: AbstractElementGeometries

Vector of face geometries

abstract type FaceNodes <: AbstractGridAdjacency

Adjacency describing nodes for faces

abstract type FaceNormals <: AbstractGridFloatArray2D

Matrix of face normals

abstract type FaceRegions <: AbstractElementRegions

Vector of face regions

abstract type FaceVolumes <: AbstractGridFloatArray1D

Vector of face volumes

const GridEGTypes = Vector{ElementGeometries}

Array type for element geometry types of grid items, as used e.g. by CellGeometries.

abstract type ITEMTYPE_BEDGE

ItemType marker for boundary edges of the grid (only in 3D).

abstract type ITEMTYPE_BFACE

ItemType marker for boundary faces of the grid.

abstract type ITEMTYPE_CELL

ItemType marker for cells of the grid.

abstract type ITEMTYPE_EDGE

ItemType marker for edges of the grid (only in 3D).

abstract type ITEMTYPE_FACE

ItemType marker for faces of the grid.

abstract type ITEMTYPE_NODE

ItemType marker for nodes of the grid.

abstract type NodeCells <: AbstractGridAdjacency

Adjacency describing cells for nodes (transposed of CellNodes)

abstract type NodeEdges <: AbstractGridAdjacency

Adjacency describing edges for nodes (transposed of EdgeNodes)

abstract type NodeFaces <: AbstractGridAdjacency

Adjacency describing faces for nodes (transposed of FaceNodes)

abstract type NodePatchGroups <: AbstractGridIntegerArray1D

Vector with patch groups for nodes (ensuring that node patches of nodes in same group do not overlap)

abstract type PROPERTY_ASSEMBLYGROUP

Property marker for the assembly groups of grid items.

abstract type PROPERTY_GEOMETRY

Property marker for the element geometries of grid items.

abstract type PROPERTY_NODES

Property marker for the node adjacency of grid items.

abstract type PROPERTY_REGION

Property marker for the region numbers of grid items.

abstract type PROPERTY_UNIQUEGEOMETRY

Property marker for the unique element geometries of grid items.

abstract type PROPERTY_VOLUME

Property marker for the volumes of grid items.

abstract type UniqueBEdgeGeometries <: AbstractElementGeometries

Vector with unique boundary edge geometries

abstract type UniqueBFaceGeometries <: AbstractElementGeometries

Vector with unique bface geometries

abstract type UniqueCellGeometries <: AbstractElementGeometries

Vector of unique cell geometries

abstract type UniqueEdgeGeometries <: AbstractElementGeometries

Vector with unique edge geometries

abstract type UniqueFaceGeometries <: AbstractElementGeometries

Vector of unique face geometries

GridComponent4TypeProperty(
    _::Type{ITEMTYPE_CELL},
    _::Type{PROPERTY_NODES}
) -> Type{CellNodes}

Grid component type for items of the given ItemType and the given Property, e.g. CellNodes for ITEMTYPE_CELL/PROPERTY_NODES. Used by the GridComponent*4AssemblyType methods.

match_bedge_numbering(xgrid)

Helper for externally provided bedgenodes (grid[BEdgeNodes], e.g. created by the seven-array simplexgrid constructor). Returns a vector BEdgeEdges mapping each externally numbered boundary edge to its number in the global edge enumeration. Errors if an externally provided boundary edge is not a (unique) boundary edge of the grid. The provided grid[BEdgeNodes] is never modified.

abstract type BFaceCells <: AbstractGridAdjacency

Adjacency describing cells per boundary or interior face

abstract type BFaceNormals <: AbstractGridComponent

Adjacency describing outer normals to boundary faces

prepare_edges!(grid)

Prepare edge adjacencies (celledges, edgecells, edgenodes)

Deprecated: use the lazily instantiated grid components grid[EdgeNodes], grid[CellEdges], grid[EdgeCells] instead. This variant recomputes the edge enumeration from scratch and overwrites potentially externally provided edge components, and it depends on ExtendableSparse.

explode(grid::ExtendableGrid) -> ExtendableGrid

Remove all adjacency information from a grid, creating independent cells by duplicating coordinates and assigning new node indices while keeping the original coordinates.

This function creates a new grid where each cell has its own independent set of nodes by duplicating the coordinate information and creating new node indices. The original coordinates are preserved, but adjacency information is removed.

Arguments

• grid::ExtendableGrid: The input grid to be processed

Returns

• ::ExtendableGrid: A new grid with duplicated coordinates and independent cells