Post-processing mesh subset tool. Given the original mesh and the list of selected cells, it creates the mesh consisting only of the desired cells, with the mapping list for points, faces, and cells. More...

#include <finiteVolume/fvMeshSubset.H>

Detailed Description

Post-processing mesh subset tool. Given the original mesh and the list of selected cells, it creates the mesh consisting only of the desired cells, with the mapping list for points, faces, and cells.

Puts all exposed internal faces into either

a user supplied patch
a newly created patch "oldInternalFaces"

setCellSubset is for small subsets. Uses Maps to minimize memory.
setLargeCellSubset is for largish subsets (>10% of mesh). Uses labelLists instead.

setLargeCellSubset does coupled patch subsetting as well. If it detects a face on a coupled patch 'losing' its neighbour it will move the face into the oldInternalFaces patch.

if a user supplied patch is used the mapping becomes a problem. Do the new faces get the value of the internal face they came from? What if e.g. the user supplied patch is a fixedValue 0? So for now they get the face of existing patch face 0.

Source files

Definition at line 74 of file fvMeshSubset.H.

Collaboration diagram for fvMeshSubset:

List of all members.

Classes
class	patchFieldSubset
	Patch-field subset interpolation class. More...
class	pointPatchFieldSubset
	Patch-field subset interpolation class. More...
Public Member Functions
	fvMeshSubset (const fvMesh &)
	Construct given a mesh to subset.
void	setCellSubset (const labelHashSet &globalCellMap, const label patchID=-1)
	Set the subset. Create "oldInternalFaces" patch for exposed.
void	setLargeCellSubset (const labelList &region, const label currentRegion, const label patchID=-1, const bool syncCouples=true)
	Set the subset from all cells with region == currentRegion.
void	setLargeCellSubset (const labelHashSet &globalCellMap, const label patchID=-1, const bool syncPar=true)
	setLargeCellSubset but with labelHashSet.
const fvMesh &	baseMesh () const
	Original mesh.
const fvMesh &	subMesh () const
	Return reference to subset mesh.
fvMesh &	subMesh ()
const labelList &	pointMap () const
	Return point map.
const labelList &	faceMap () const
	Return face map.
const labelList &	cellMap () const
	Return cell map.
const labelList &	patchMap () const
	Return patch map.
template<class Type >
tmp< GeometricField< Type, fvPatchField, volMesh > >	interpolate (const GeometricField< Type, fvPatchField, volMesh > &) const
template<class Type >
tmp< GeometricField< Type, fvsPatchField, surfaceMesh > >	interpolate (const GeometricField< Type, fvsPatchField, surfaceMesh > &) const
template<class Type >
tmp< GeometricField< Type, pointPatchField, pointMesh > >	interpolate (const GeometricField< Type, pointPatchField, pointMesh > &) const
Static Public Member Functions
template<class Type >
static tmp< GeometricField < Type, fvPatchField, volMesh > >	interpolate (const GeometricField< Type, fvPatchField, volMesh > &, const fvMesh &sMesh, const labelList &patchMap, const labelList &cellMap, const labelList &faceMap)
	Map volume field.
template<class Type >
static tmp< GeometricField < Type, fvsPatchField, surfaceMesh > >	interpolate (const GeometricField< Type, fvsPatchField, surfaceMesh > &, const fvMesh &sMesh, const labelList &patchMap, const labelList &faceMap)
	Map surface field.
template<class Type >
static tmp< GeometricField < Type, pointPatchField, pointMesh > >	interpolate (const GeometricField< Type, pointPatchField, pointMesh > &, const pointMesh &sMesh, const labelList &patchMap, const labelList &pointMap)
	Map point field.

Constructor & Destructor Documentation

fvMeshSubset ( const fvMesh & baseMesh ) [explicit]

Construct given a mesh to subset.

Definition at line 370 of file fvMeshSubset.C.

Member Function Documentation

void setCellSubset	(	const labelHashSet &	globalCellMap,
		const label	patchID = `-1`
	)

Set the subset. Create "oldInternalFaces" patch for exposed.

internal faces (patchID==-1) or use supplied patch. Does not handle coupled patches correctly if only one side gets deleted.

Definition at line 384 of file fvMeshSubset.C.

References Foam::abort(), IOobject::clone(), Foam::endl(), Foam::FatalError, FatalErrorIn, polyBoundaryMesh::findPatchID(), forAll, HashTable< T, Key, Hash >::found(), HashTable< T, label, Hash< label > >::insert(), HashTable< T, Key, Hash >::insert(), Foam::name(), IOobject::NO_READ, IOobject::NO_WRITE, Foam::Pout, List< T >::setSize(), List< T >::size(), HashTable< T, label, Hash< label > >::size(), HashTable< T, Key, Hash >::size(), PtrList< T >::size(), Foam::sort(), timeName, HashTable< T, Key, Hash >::toc(), polyBoundaryMesh::whichPatch(), and Foam::xferMove().

void setLargeCellSubset	(	const labelList &	region,
		const label	currentRegion,
		const label	patchID = `-1`,
		const bool	syncCouples = `true`
	)

Set the subset from all cells with region == currentRegion.

Create "oldInternalFaces" patch for exposed internal faces (patchID==-1) or use supplied patch. Handles coupled patches by if nessecary making coupled patch face part of patchID (so uncoupled)

Definition at line 767 of file fvMeshSubset.C.

References Foam::abort(), IOobject::clone(), Foam::endl(), Foam::FatalError, FatalErrorIn, polyBoundaryMesh::findPatchID(), forAll, Pstream::gatherList(), Foam::identity(), Pstream::listCombineGather(), Pstream::listCombineScatter(), Pstream::myProcNo(), Foam::name(), polyBoundaryMesh::names(), IOobject::NO_READ, IOobject::NO_WRITE, Pstream::nProcs(), Pstream::parRun(), patchNames(), Foam::reduce(), Pstream::scatterList(), List< T >::setSize(), PtrList< T >::size(), List< T >::size(), polyPatch::start(), timeName, and Foam::xferMove().

Referenced by fvMeshDistribute::distribute().

void setLargeCellSubset	(	const labelHashSet &	globalCellMap,
		const label	patchID = `-1`,
		const bool	syncPar = `true`
	)

setLargeCellSubset but with labelHashSet.

Definition at line 1362 of file fvMeshSubset.C.

References forAllConstIter.

const fvMesh& baseMesh ( ) const [inline]

Original mesh.

Definition at line 268 of file fvMeshSubset.H.

const fvMesh & subMesh ( ) const

Return reference to subset mesh.

Definition at line 1378 of file fvMeshSubset.C.

Referenced by fvMeshDistribute::distribute(), and vtkMesh::mesh().

fvMesh & subMesh ( )

Definition at line 1386 of file fvMeshSubset.C.

const labelList & pointMap ( ) const

Return point map.

Definition at line 1394 of file fvMeshSubset.C.

Referenced by fvMeshDistribute::distribute().

const labelList & faceMap ( ) const

Return face map.

Definition at line 1402 of file fvMeshSubset.C.

Referenced by fvMeshDistribute::distribute().

const labelList & cellMap ( ) const

Return cell map.

Definition at line 1410 of file fvMeshSubset.C.

Referenced by fvMeshDistribute::distribute().

const labelList & patchMap ( ) const

Return patch map.

Definition at line 1418 of file fvMeshSubset.C.

Referenced by fvMeshDistribute::distribute().

tmp< GeometricField< Type, fvPatchField, volMesh > > interpolate	(	const GeometricField< Type, fvPatchField, volMesh > &	vf,
		const fvMesh &	sMesh,
		const labelList &	patchMap,
		const labelList &	cellMap,
		const labelList &	faceMap
	)		`[static]`

tmp< GeometricField< Type, fvPatchField, volMesh > > interpolate ( const GeometricField< Type, fvPatchField, volMesh > & vf ) const

Definition at line 140 of file fvMeshSubsetInterpolate.C.

References Foam::interpolate().

tmp< GeometricField< Type, fvsPatchField, surfaceMesh > > interpolate	(	const GeometricField< Type, fvsPatchField, surfaceMesh > &	vf,
		const fvMesh &	sMesh,
		const labelList &	patchMap,
		const labelList &	faceMap
	)		`[static]`

tmp< GeometricField< Type, fvsPatchField, surfaceMesh > > interpolate ( const GeometricField< Type, fvsPatchField, surfaceMesh > & sf ) const

Definition at line 281 of file fvMeshSubsetInterpolate.C.

References Foam::interpolate().

tmp< GeometricField< Type, pointPatchField, pointMesh > > interpolate	(	const GeometricField< Type, pointPatchField, pointMesh > &	vf,
		const pointMesh &	sMesh,
		const labelList &	patchMap,
		const labelList &	pointMap
	)		`[static]`

tmp< GeometricField< Type, pointPatchField, pointMesh > > interpolate ( const GeometricField< Type, pointPatchField, pointMesh > & sf ) const

Definition at line 403 of file fvMeshSubsetInterpolate.C.

References Foam::interpolate(), and MeshObject< polyMesh, pointMesh >::New().

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

src/finiteVolume/fvMesh/fvMeshSubset/fvMeshSubset.H
src/finiteVolume/fvMesh/fvMeshSubset/fvMeshSubset.C
src/finiteVolume/fvMesh/fvMeshSubset/fvMeshSubsetInterpolate.C

fvMeshSubset Class Reference

Detailed Description

Classes

Public Member Functions

Static Public Member Functions

Constructor & Destructor Documentation

Member Function Documentation