Given a displacement moves the mesh by scaling the displacement back until there are no more mesh errors. More...

Inheritance diagram for motionSmootherAlgo:

Public Member Functions
	ClassName ("motionSmootherAlgo")

	motionSmootherAlgo (polyMesh &, pointMesh &, indirectPrimitivePatch &pp, pointVectorField &displacement, pointScalarField &scale, pointField &oldPoints, const labelList &adaptPatchIDs, const dictionary &paramDict)
	Construct from mesh, patches to work on and smoothing parameters. More...

	motionSmootherAlgo (const motionSmootherAlgo &)=delete
	Disallow default bitwise copy construction. More...

	~motionSmootherAlgo ()
	Destructor. More...

const polyMesh &	mesh () const
	Reference to mesh. More...

const pointMesh &	pMesh () const
	Reference to pointMesh. More...

const indirectPrimitivePatch &	patch () const
	Reference to patch. More...

const labelList &	adaptPatchIDs () const
	Patch labels that are being adapted. More...

const dictionary &	paramDict () const

void	correct ()
	Take over existing mesh position. More...

void	setDisplacementPatchFields ()
	Set patch fields on displacement to be consistent with. More...

void	setDisplacement (pointField &patchDisp)

void	correctBoundaryConditions (pointVectorField &) const
	Special correctBoundaryConditions which evaluates fixedValue. More...

void	modifyMotionPoints (pointField &newPoints) const
	Apply optional point constraint (2d correction) More...

tmp< pointField >	curPoints () const
	Get the current points (oldPoints+scale*displacement) More...

scalar	setErrorReduction (const scalar)
	Set the errorReduction (by how much to scale the displacement. More...

bool	scaleMesh (const labelList &checkFaces, const bool smoothMesh=true, const label nAllow=0)
	Move mesh with given scale. Return true if mesh ok or has. More...

bool	scaleMesh (const labelList &checkFaces, const List< labelPair > &baffles, const bool smoothMesh=true, const label nAllow=0)
	Move mesh (with baffles) with given scale. More...

bool	scaleMesh (const labelList &checkFaces, const List< labelPair > &baffles, const dictionary &paramDict, const dictionary &meshQualityDict, const bool smoothMesh=true, const label nAllow=0)
	Move mesh with externally provided mesh constraints. More...

void	movePoints ()
	Update for new mesh geometry. More...

void	topoChange ()
	Update for new mesh topology. More...

template<class Type >
void	smooth (const PointField< Type > &fld, const scalarField &edgeWeight, PointField< Type > &newFld) const
	Fully explicit smoothing of fields (not positions) More...

void	operator= (const motionSmootherAlgo &)=delete
	Disallow default bitwise assignment. More...

template<class Type >
Foam::tmp< Foam::PointField< Type > >	avg (const PointField< Type > &fld, const scalarField &edgeWeight) const

Static Public Member Functions
static void	setDisplacementPatchFields (const labelList &patchIDs, pointVectorField &pointDisplacement)
	Set patch fields on patchIDs to be consistent with. More...

static void	setDisplacement (const labelList &patchIDs, const indirectPrimitivePatch &pp, pointField &patchDisp, pointVectorField &displacement)
	Set displacement field from displacement on patch points. More...

static bool	checkMesh (const bool report, const polyMesh &mesh, const dictionary &dict, labelHashSet &wrongFaces)
	Check mesh with mesh settings in dict. Collects incorrect faces. More...

static bool	checkMesh (const bool report, const polyMesh &mesh, const dictionary &dict, const labelList &checkFaces, labelHashSet &wrongFaces)
	Check (subset of mesh) with mesh settings in dict. More...

static bool	checkMesh (const bool report, const polyMesh &mesh, const dictionary &dict, const labelList &checkFaces, const List< labelPair > &baffles, labelHashSet &wrongFaces)
	Check (subset of mesh including baffles) with mesh settings. More...

Detailed Description

Given a displacement moves the mesh by scaling the displacement back until there are no more mesh errors.

Holds displacement field (read upon construction since need boundary conditions) and scaling factor and optional patch number on which to scale back displacement.

E.g.

    // Construct iterative mesh mover.
    motionSmoother meshMover(mesh, labelList(1, patchi));

    // Set desired displacement:
    meshMover.displacement() = ..

    for (label iter = 0; iter < maxIter; iter++)
    {
        if (meshMover.scaleMesh(true))
        {
            Info<< "Successfully moved mesh" << endl;
            return true;
        }
    }

Note:

Shared points (parallel): a processor can have points which are part of pp on another processor but have no pp itself (i.e. it has points and/or edges but no faces of pp). Hence we have to be careful when e.g. synchronising displacements that the value from the processor which has faces of pp get priority. This is currently handled in setDisplacement by resetting the internal displacement to zero before doing anything else. The combine operator used will give preference to non-zero values.
Various routines take baffles. These are sets of boundary faces that are treated as a single internal face. This is a hack used to apply movement to internal faces.
Mesh constraints are looked up from the supplied dictionary. (uses recursive lookup)

Source files

Definition at line 95 of file motionSmootherAlgo.H.

Constructor & Destructor Documentation

◆ motionSmootherAlgo() [1/2]

motionSmootherAlgo	(	polyMesh &	mesh,
		pointMesh &	pMesh,
		indirectPrimitivePatch &	pp,
		pointVectorField &	displacement,
		pointScalarField &	scale,
		pointField &	oldPoints,
		const labelList &	adaptPatchIDs,
		const dictionary &	paramDict
	)

Construct from mesh, patches to work on and smoothing parameters.

Definition at line 349 of file motionSmootherAlgo.C.

References motionSmootherAlgo::topoChange().

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◆ motionSmootherAlgo() [2/2]

motionSmootherAlgo ( const motionSmootherAlgo & )

delete

Disallow default bitwise copy construction.

◆ ~motionSmootherAlgo()

~motionSmootherAlgo ( )

Destructor.

Definition at line 377 of file motionSmootherAlgo.C.

Member Function Documentation

◆ ClassName()

ClassName ( "motionSmootherAlgo" )

◆ mesh()

const Foam::polyMesh & mesh ( ) const

Reference to mesh.

Definition at line 383 of file motionSmootherAlgo.C.

Referenced by motionSmootherAlgo::checkMesh().

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◆ pMesh()

const Foam::pointMesh & pMesh ( ) const

Reference to pointMesh.

Definition at line 389 of file motionSmootherAlgo.C.

Referenced by snappySnapDriver::smoothDisplacement().

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◆ patch()

const Foam::indirectPrimitivePatch & patch ( ) const

Reference to patch.

Definition at line 395 of file motionSmootherAlgo.C.

Referenced by snappySnapDriver::smoothDisplacement().

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◆ adaptPatchIDs()

const Foam::labelList & adaptPatchIDs ( ) const

Patch labels that are being adapted.

Definition at line 401 of file motionSmootherAlgo.C.

◆ paramDict()

const Foam::dictionary & paramDict ( ) const

Definition at line 407 of file motionSmootherAlgo.C.

◆ correct()

void correct ( )

Take over existing mesh position.

Definition at line 413 of file motionSmootherAlgo.C.

Referenced by snappySnapDriver::doSnap(), and snappySnapDriver::preSmoothPatch().

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◆ setDisplacementPatchFields() [1/2]

void setDisplacementPatchFields	(	const labelList &	patchIDs,
		pointVectorField &	pointDisplacement
	)

static

Set patch fields on patchIDs to be consistent with.

all other boundary conditions

Definition at line 425 of file motionSmootherAlgo.C.

References GeometricField< Type, PatchField, GeoMesh >::boundaryFieldRef(), pointConstraints::constrainCorners(), GeometricBoundaryField< Type, PatchField, GeoMesh >::evaluate(), forAll, HashTable< T, Key, Hash >::found(), DimensionedField< Type, GeoMesh >::mesh(), DemandDrivenMeshObject< pointMesh, UpdateableMeshObject, pointConstraints >::New(), patchi, and UPstream::scheduled.

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◆ setDisplacementPatchFields() [2/2]

void setDisplacementPatchFields ( )

Set patch fields on displacement to be consistent with.

internal values.

Definition at line 488 of file motionSmootherAlgo.C.

◆ setDisplacement() [1/2]

void setDisplacement	(	const labelList &	patchIDs,
		const indirectPrimitivePatch &	pp,
		pointField &	patchDisp,
		pointVectorField &	displacement
	)

static

Set displacement field from displacement on patch points.

Modify provided displacement to be consistent with actual boundary conditions on displacement. Note: resets the displacement to be 0 on coupled patches beforehand to make sure shared points partially on pp (on some processors) and partially not (on other processors) get the value from pp.

Definition at line 494 of file motionSmootherAlgo.C.

References globalMeshData::coupledPatch(), IOobject::db(), Foam::endl(), forAll, polyMesh::globalData(), Foam::mag(), DimensionedField< Type, GeoMesh >::mesh(), PrimitivePatch< FaceList, PointField >::meshPoints(), OFstream::name(), objectRegistry::path(), polyMesh::points(), Foam::Pout, syncTools::syncPointList(), Foam::meshTools::writeOBJ(), and VectorSpace< Form, Cmpt, Ncmpts >::zero.

Referenced by snappyLayerDriver::addLayers(), snappySnapDriver::doSnap(), and snappySnapDriver::preSmoothPatch().

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◆ setDisplacement() [2/2]

void setDisplacement ( pointField & patchDisp )

Definition at line 571 of file motionSmootherAlgo.C.

◆ correctBoundaryConditions()

void correctBoundaryConditions ( pointVectorField & displacement ) const

Special correctBoundaryConditions which evaluates fixedValue.

patches first so they get overwritten with any constraint bc's.

Definition at line 578 of file motionSmootherAlgo.C.

References GeometricField< Type, PatchField, GeoMesh >::boundaryFieldRef(), pointConstraints::constrainCorners(), GeometricBoundaryField< Type, PatchField, GeoMesh >::evaluate(), forAll, HashTable< T, Key, Hash >::found(), DimensionedField< Type, GeoMesh >::mesh(), DemandDrivenMeshObject< pointMesh, UpdateableMeshObject, pointConstraints >::New(), patchi, UPstream::scheduled, syncTools::syncPointList(), and VectorSpace< Form, Cmpt, Ncmpts >::zero.

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◆ modifyMotionPoints()

void modifyMotionPoints ( pointField & newPoints ) const

Apply optional point constraint (2d correction)

Definition at line 646 of file motionSmootherAlgo.C.

References twoDPointCorrector::correctPoints(), Foam::e, Foam::endl(), forAll, Foam::Info, DemandDrivenMeshObject< polyMesh, UpdateableMeshObject, twoDPointCorrector >::New(), twoDPointCorrector::normalEdgeIndices(), twoDPointCorrector::planeNormal(), Foam::Pout, twoDPointCorrector::required(), and WarningInFunction.

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◆ curPoints()

Foam::tmp< Foam::pointField > curPoints ( ) const

Get the current points (oldPoints+scale*displacement)

Definition at line 757 of file motionSmootherAlgo.C.

References pointMesh::boundary(), correctBoundaryConditions(), Foam::e, Foam::endl(), forAll, Foam::isA(), pointBoundaryMesh::mesh(), IOobject::NO_READ, IOobject::NO_WRITE, patchi, Foam::Pout, GeometricField< Type, PatchField, GeoMesh >::primitiveField(), tmp< T >::ref(), List< T >::setSize(), UPtrList< T >::size(), and VectorSpace< Form, Cmpt, Ncmpts >::zero.

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◆ setErrorReduction()

Foam::scalar setErrorReduction ( const scalar errorReduction )

Set the errorReduction (by how much to scale the displacement.

at error locations) parameter. Returns the old value. Set to 0 (so revert to old mesh) grows out one cell layer from error faces.

Definition at line 705 of file motionSmootherAlgo.C.

Referenced by snappySnapDriver::preSmoothPatch(), and snappySnapDriver::scaleMesh().

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◆ scaleMesh() [1/3]

bool scaleMesh	(	const labelList &	checkFaces,
		const bool	smoothMesh = `true`,
		const label	nAllow = `0`
	)

Move mesh with given scale. Return true if mesh ok or has.

less than nAllow errors, false otherwise and locally update scale. Smoothmesh=false means only patch points get moved. Parallel ok (as long as displacement field is consistent across patches)

Definition at line 719 of file motionSmootherAlgo.C.

Referenced by snappySnapDriver::preSmoothPatch(), and snappySnapDriver::scaleMesh().

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◆ scaleMesh() [2/3]

bool scaleMesh	(	const labelList &	checkFaces,
		const List< labelPair > &	baffles,
		const bool	smoothMesh = `true`,
		const label	nAllow = `0`
	)

Move mesh (with baffles) with given scale.

Definition at line 737 of file motionSmootherAlgo.C.

◆ scaleMesh() [3/3]

bool scaleMesh	(	const labelList &	checkFaces,
		const List< labelPair > &	baffles,
		const dictionary &	paramDict,
		const dictionary &	meshQualityDict,
		const bool	smoothMesh = `true`,
		const label	nAllow = `0`
	)

Move mesh with externally provided mesh constraints.

Definition at line 830 of file motionSmootherAlgo.C.

References Foam::endl(), Foam::exit(), Foam::FatalError, FatalErrorInFunction, forAll, forAllConstIter, Foam::gMax(), Foam::gMin(), Foam::Info, HashSet< Key, Hash >::insert(), dictionary::lookup(), Foam::mag(), patchIdentifier::name(), Foam::nl, patches, patchi, Foam::Pout, Foam::returnReduce(), HashTable< T, Key, Hash >::size(), faceSet::sync(), pointSet::sync(), syncTools::syncPointList(), HashTable< T, Key, Hash >::transfer(), coupledPolyPatch::transform(), and VectorSpace< Form, Cmpt, Ncmpts >::zero.

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◆ movePoints()

void movePoints ( )

Update for new mesh geometry.

Definition at line 696 of file motionSmootherAlgo.C.

◆ topoChange()

void topoChange ( )

Update for new mesh topology.

Definition at line 1036 of file motionSmootherAlgo.C.

References Foam::exit(), Foam::FatalError, FatalErrorInFunction, forAll, syncTools::getMasterEdges(), Foam::nl, patches, and patchi.

Referenced by motionSmootherAlgo::motionSmootherAlgo().

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◆ checkMesh() [1/3]

bool checkMesh	(	const bool	report,
		const polyMesh &	mesh,
		const dictionary &	dict,
		labelHashSet &	wrongFaces
	)

static

Check mesh with mesh settings in dict. Collects incorrect faces.

in set. Returns true if one or more faces in error. Parallel ok.

Definition at line 359 of file motionSmootherAlgoCheck.C.

References dict, Foam::identityMap(), and primitiveMesh::nFaces().

Referenced by edgeCollapser::checkBadFaces(), motionSmootherAlgo::checkMesh(), snappyLayerDriver::doLayers(), snappySnapDriver::doSnap(), meshRefinement::mergeEdgesUndo(), and meshRefinement::mergePatchFacesUndo().

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◆ checkMesh() [2/3]

bool checkMesh	(	const bool	report,
		const polyMesh &	mesh,
		const dictionary &	dict,
		const labelList &	checkFaces,
		labelHashSet &	wrongFaces
	)

static

Check (subset of mesh) with mesh settings in dict.

Collects incorrect faces in set. Returns true if one or more faces in error. Parallel ok.

Definition at line 32 of file motionSmootherAlgoCheck.C.

References motionSmootherAlgo::checkMesh(), dict, and motionSmootherAlgo::mesh().

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◆ checkMesh() [3/3]

bool checkMesh	(	const bool	report,
		const polyMesh &	mesh,
		const dictionary &	dict,
		const labelList &	checkFaces,
		const List< labelPair > &	baffles,
		labelHashSet &	wrongFaces
	)

static

Check (subset of mesh including baffles) with mesh settings.

in dict. Collects incorrect faces in set. Returns true if one or more faces in error. Parallel ok.

Definition at line 53 of file motionSmootherAlgoCheck.C.

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◆ smooth()

void smooth	(	const PointField< Type > &	fld,
		const scalarField &	edgeWeight,
		PointField< Type > &	newFld
	)		const

Fully explicit smoothing of fields (not positions)

of internal points with varying diffusivity.

Definition at line 225 of file motionSmootherAlgoTemplates.C.

References pointConstraints::constrain(), fld(), forAll, and DemandDrivenMeshObject< pointMesh, UpdateableMeshObject, pointConstraints >::New().

Referenced by snappySnapDriver::smoothDisplacement().

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◆ operator=()

void operator= ( const motionSmootherAlgo & )

delete

Disallow default bitwise assignment.

◆ avg()

Foam::tmp<Foam::PointField<Type> > avg	(	const PointField< Type > &	fld,
		const scalarField &	edgeWeight
	)		const

Definition at line 136 of file motionSmootherAlgoTemplates.C.

References pointConstraints::constrain(), Foam::e, primitiveMesh::edges(), fld(), forAll, Foam::mag(), DemandDrivenMeshObject< pointMesh, UpdateableMeshObject, pointConstraints >::New(), primitiveMesh::nPoints(), tmp< T >::ref(), syncTools::syncPointList(), and Foam::Zero.

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

src/dynamicMesh/motionSmoother/motionSmootherAlgo.H
src/dynamicMesh/motionSmoother/motionSmootherAlgo.C
src/dynamicMesh/motionSmoother/motionSmootherAlgoCheck.C
src/dynamicMesh/motionSmoother/motionSmootherAlgoTemplates.C

Public Member Functions

Static Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ motionSmootherAlgo() [1/2]

◆ motionSmootherAlgo() [2/2]

◆ ~motionSmootherAlgo()

Member Function Documentation

◆ ClassName()

◆ mesh()

◆ pMesh()

◆ patch()

◆ adaptPatchIDs()

◆ paramDict()

◆ correct()

◆ setDisplacementPatchFields() [1/2]

◆ setDisplacementPatchFields() [2/2]

◆ setDisplacement() [1/2]

◆ setDisplacement() [2/2]

◆ correctBoundaryConditions()

◆ modifyMotionPoints()

◆ curPoints()

◆ setErrorReduction()

◆ scaleMesh() [1/3]

◆ scaleMesh() [2/3]

◆ scaleMesh() [3/3]

◆ movePoints()

◆ topoChange()

◆ checkMesh() [1/3]

◆ checkMesh() [2/3]

◆ checkMesh() [3/3]

◆ smooth()

◆ operator=()

◆ avg()