A surface formed by the iso value. After "Polygonising A Scalar Field Using Tetrahedrons", Paul Bourke (http://paulbourke.net/geometry/polygonise) and "Regularised Marching Tetrahedra: improved iso-surface extraction", G.M. Treece, R.W. Prager and A.H. Gee. More...

Inheritance diagram for isoSurfaceCell:

[legend]

Collaboration diagram for isoSurfaceCell:

[legend]

Public Member Functions
	TypeName ("isoSurfaceCell")
	Runtime type information. More...

	isoSurfaceCell (const polyMesh &mesh, const scalarField &cellValues, const scalarField &pointValues, const scalar iso, const bool regularise, const boundBox &bounds=boundBox::greatBox, const scalar mergeTol=1e-6)
	Construct from dictionary. More...

const labelList &	meshCells () const
	For every face original cell in mesh. More...

template<class Type >
tmp< Field< Type > >	interpolate (const Field< Type > &cCoords, const Field< Type > &pCoords) const
	Interpolates cCoords,pCoords. More...

template<class Type >
Foam::tmp< Foam::Field< Type > >	interpolate (const Field< Type > &cCoords, const Field< Type > &pCoords) const

Public Member Functions inherited from triSurface
	ClassName ("triSurface")
	Runtime type information. More...

	triSurface ()
	Construct null. More...

	triSurface (const List< labelledTri > &, const geometricSurfacePatchList &, const pointField &)
	Construct from triangles, patches, points. More...

	triSurface (List< labelledTri > &, const geometricSurfacePatchList &, pointField &, const bool reUse)
	Construct from triangles, patches, points. Reuse storage. More...

	triSurface (const List< labelledTri > &, const pointField &)
	Construct from triangles, points. Set patchnames to default. More...

	triSurface (const triFaceList &, const pointField &)
	Construct from triangles, points. Set region to 0 and default. More...

	triSurface (const fileName &)
	Construct from file name (uses extension to determine type) More...

	triSurface (Istream &)
	Construct from Istream. More...

	triSurface (const Time &d)
	Construct from objectRegistry. More...

	triSurface (const triSurface &)
	Construct as copy. More...

	~triSurface ()

void	clearOut ()
	Clear all data. More...

void	clearTopology ()
	Clear topology. More...

void	clearPatchMeshAddr ()
	Clear patch addressing. More...

const geometricSurfacePatchList &	patches () const

geometricSurfacePatchList &	patches ()

const labelListList &	sortedEdgeFaces () const
	Return edge-face addressing sorted (for edges with more than. More...

const labelList &	edgeOwner () const
	If 2 face neighbours: label of face where ordering of edge. More...

virtual void	movePoints (const pointField &)
	Move points. More...

virtual void	scalePoints (const scalar &)
	Scale points. A non-positive factor is ignored. More...

void	checkTriangles (const bool verbose=false)
	Check/remove duplicate/degenerate triangles. More...

void	checkEdges (const bool verbose=false)
	Check triply (or more) connected edges. More...

void	cleanup (const bool verbose=false)
	Remove non-valid triangles. More...

void	markZone (const boolList &borderEdge, const label faceI, const label currentZone, labelList &faceZone) const
	Fill faceZone with currentZone for every face reachable. More...

label	markZones (const boolList &borderEdge, labelList &faceZone) const
	(size and) fills faceZone with zone of face. Zone is area More...

void	subsetMeshMap (const boolList &include, labelList &pointMap, labelList &faceMap) const
	'Create' sub mesh, including only faces for which More...

triSurface	subsetMesh (const boolList &include, labelList &pointMap, labelList &faceMap) const
	Return new surface. Returns pointMap, faceMap from. More...

void	write (Ostream &) const
	Write to Ostream in simple FOAM format. More...

void	write (const fileName &, const bool sortByRegion=false) const
	Generic write routine. Chooses writer based on extension. More...

void	write (const Time &) const
	Write to database. More...

void	writeDX (const scalarField &, Ostream &) const
	Write to Ostream in OpenDX format. More...

void	writeDX (const vectorField &, Ostream &) const

void	writeStats (Ostream &) const
	Write some statistics. More...

void	operator= (const triSurface &)

	ClassName ("triSurface")
	Runtime type information. More...

	triSurface ()
	Construct null. More...

	triSurface (const List< labelledTri > &, const geometricSurfacePatchList &, const pointField &)
	Construct from triangles, patches, points. More...

	triSurface (List< labelledTri > &, const geometricSurfacePatchList &, pointField &, const bool reUse)
	Construct from triangles, patches, points. Reuse storage. More...

	triSurface (const Xfer< List< labelledTri > > &, const geometricSurfacePatchList &, const Xfer< List< point > > &)
	Construct from triangles, patches, points. More...

	triSurface (const List< labelledTri > &, const pointField &)
	Construct from triangles, points. Set patchnames to default. More...

	triSurface (const triFaceList &, const pointField &)
	Construct from triangles, points. Set region to 0 and default. More...

	triSurface (const fileName &)
	Construct from file name (uses extension to determine type) More...

	triSurface (Istream &)
	Construct from Istream. More...

	triSurface (const Time &d)
	Construct from objectRegistry. More...

	triSurface (const triSurface &)
	Construct as copy. More...

	~triSurface ()
	Destructor. More...

void	clearOut ()

void	clearTopology ()

void	clearPatchMeshAddr ()

const geometricSurfacePatchList &	patches () const

geometricSurfacePatchList &	patches ()

const labelListList &	sortedEdgeFaces () const
	Return edge-face addressing sorted (for edges with more than. More...

const labelList &	edgeOwner () const
	If 2 face neighbours: label of face where ordering of edge. More...

virtual void	movePoints (const pointField &)
	Move points. More...

virtual void	scalePoints (const scalar)
	Scale points. A non-positive factor is ignored. More...

void	checkTriangles (const bool verbose)
	Check/remove duplicate/degenerate triangles. More...

void	checkEdges (const bool verbose)
	Check triply (or more) connected edges. More...

void	cleanup (const bool verbose)
	Remove non-valid triangles. More...

void	markZone (const boolList &borderEdge, const label faceI, const label currentZone, labelList &faceZone) const
	Fill faceZone with currentZone for every face reachable. More...

label	markZones (const boolList &borderEdge, labelList &faceZone) const
	(size and) fills faceZone with zone of face. Zone is area More...

void	subsetMeshMap (const boolList &include, labelList &pointMap, labelList &faceMap) const
	'Create' sub mesh, including only faces for which More...

triSurface	subsetMesh (const boolList &include, labelList &pointMap, labelList &faceMap) const
	Return new surface. Returns pointMap, faceMap from. More...

void	write (Ostream &) const
	Write to Ostream in simple FOAM format. More...

void	write (const fileName &, const bool sortByRegion=false) const
	Generic write routine. Chooses writer based on extension. More...

void	write (const Time &) const
	Write to database. More...

void	writeDX (const scalarField &, Ostream &) const
	Write to Ostream in OpenDX format. More...

void	writeDX (const vectorField &, Ostream &) const

void	writeStats (Ostream &) const
	Write some statistics. More...

void	operator= (const triSurface &)

Public Member Functions inherited from PrimitivePatch< labelledTri, List, pointField, point >
	PrimitivePatch (const List< labelledTri > &faces, const Field< point > &points)
	Construct from components. More...

	PrimitivePatch (List< labelledTri > &faces, Field< point > &points, const bool reUse)
	Construct from components, reuse storage. More...

	PrimitivePatch (const PrimitivePatch< labelledTri, List, pointField, point > &)
	Construct as copy. More...

	PrimitivePatch (const List< labelledTri > &faces, const Field< point > &points)
	Construct from components. More...

	PrimitivePatch (const Xfer< List< labelledTri > > &faces, const Xfer< List< point > > &points)
	Construct from components. More...

	PrimitivePatch (List< labelledTri > &faces, Field< point > &points, const bool reUse)
	Construct from components, reuse storage. More...

	PrimitivePatch (const PrimitivePatch< labelledTri, List, pointField, point > &)
	Construct as copy. More...

virtual	~PrimitivePatch ()

virtual	~PrimitivePatch ()
	Destructor. More...

void	clearOut ()

void	clearOut ()

void	clearGeom ()

void	clearGeom ()

void	clearTopology ()

void	clearTopology ()

void	clearPatchMeshAddr ()

void	clearPatchMeshAddr ()

const Field< point > &	points () const
	Return reference to global points. More...

const Field< point > &	points () const
	Return reference to global points. More...

label	nPoints () const
	Return number of points supporting patch faces. More...

label	nPoints () const
	Return number of points supporting patch faces. More...

label	nEdges () const
	Return number of edges in patch. More...

label	nEdges () const
	Return number of edges in patch. More...

const edgeList &	edges () const
	Return list of edges, address into LOCAL point list. More...

const edgeList &	edges () const
	Return list of edges, address into LOCAL point list. More...

label	nInternalEdges () const
	Number of internal edges. More...

label	nInternalEdges () const
	Number of internal edges. More...

bool	isInternalEdge (const label edgeI) const
	Is internal edge? More...

bool	isInternalEdge (const label edgeI) const
	Is internal edge? More...

const labelList &	boundaryPoints () const
	Return list of boundary points,. More...

const labelList &	boundaryPoints () const
	Return list of boundary points,. More...

const labelListList &	faceFaces () const
	Return face-face addressing. More...

const labelListList &	faceFaces () const
	Return face-face addressing. More...

const labelListList &	edgeFaces () const
	Return edge-face addressing. More...

const labelListList &	edgeFaces () const
	Return edge-face addressing. More...

const labelListList &	faceEdges () const
	Return face-edge addressing. More...

const labelListList &	faceEdges () const
	Return face-edge addressing. More...

const labelListList &	pointEdges () const
	Return point-edge addressing. More...

const labelListList &	pointEdges () const
	Return point-edge addressing. More...

const labelListList &	pointFaces () const
	Return point-face addressing. More...

const labelListList &	pointFaces () const
	Return point-face addressing. More...

const List< labelledTri > &	localFaces () const
	Return patch faces addressing into local point list. More...

const List< labelledTri > &	localFaces () const
	Return patch faces addressing into local point list. More...

const labelList &	meshPoints () const
	Return labelList of mesh points in patch. More...

const labelList &	meshPoints () const
	Return labelList of mesh points in patch. They are constructed. More...

const Map< label > &	meshPointMap () const
	Mesh point map. Given the global point index find its. More...

const Map< label > &	meshPointMap () const
	Mesh point map. Given the global point index find its. More...

const Field< point > &	localPoints () const
	Return pointField of points in patch. More...

const Field< point > &	localPoints () const
	Return pointField of points in patch. More...

const labelList &	localPointOrder () const
	Return orders the local points for most efficient search. More...

const labelList &	localPointOrder () const
	Return orders the local points for most efficient search. More...

label	whichPoint (const label gp) const
	Given a global point index, return the local point. More...

label	whichPoint (const label gp) const
	Given a global point index, return the local point index. More...

label	whichEdge (const edge &e) const
	Given an edge in local point labels, return its index. More...

label	whichEdge (const edge &) const
	Given an edge in local point labels, return its. More...

labelList	meshEdges (const edgeList &allEdges, const labelListList &cellEdges, const labelList &faceCells) const
	Return labels of patch edges in the global edge list using. More...

labelList	meshEdges (const edgeList &allEdges, const labelListList &pointEdges) const
	Return labels of patch edges in the global edge list using. More...

labelList	meshEdges (const edgeList &allEdges, const labelListList &cellEdges, const labelList &faceCells) const
	Return labels of patch edges in the global edge list using. More...

labelList	meshEdges (const edgeList &allEdges, const labelListList &pointEdges) const
	Return labels of patch edges in the global edge list using. More...

const Field< point > &	faceCentres () const
	Return face centres for patch. More...

const Field< point > &	faceCentres () const
	Return face centres for patch. More...

const Field< point > &	faceNormals () const
	Return face normals for patch. More...

const Field< point > &	faceNormals () const
	Return face normals for patch. More...

const Field< point > &	pointNormals () const
	Return point normals for patch. More...

const Field< point > &	pointNormals () const
	Return point normals for patch. More...

List< objectHit >	projectPoints (const ToPatch &targetPatch, const Field< point > &projectionDirection, const intersection::algorithm alg=intersection::FULL_RAY, const intersection::direction dir=intersection::VECTOR) const
	Project vertices of patch onto another patch. More...

List< objectHit >	projectPoints (const ToPatch &targetPatch, const Field< point > &projectionDirection, const intersection::algorithm=intersection::FULL_RAY, const intersection::direction=intersection::VECTOR) const
	Project vertices of patch onto another patch. More...

Foam::List< Foam::objectHit >	projectPoints (const ToPatch &targetPatch, const Field< point > &projectionDirection, const intersection::algorithm alg, const intersection::direction dir) const

List< objectHit >	projectFaceCentres (const ToPatch &targetPatch, const Field< point > &projectionDirection, const intersection::algorithm alg=intersection::FULL_RAY, const intersection::direction dir=intersection::VECTOR) const
	Project vertices of patch onto another patch. More...

List< objectHit >	projectFaceCentres (const ToPatch &targetPatch, const Field< point > &projectionDirection, const intersection::algorithm=intersection::FULL_RAY, const intersection::direction=intersection::VECTOR) const
	Project vertices of patch onto another patch. More...

Foam::List< Foam::objectHit >	projectFaceCentres (const ToPatch &targetPatch, const Field< point > &projectionDirection, const intersection::algorithm alg, const intersection::direction dir) const

const labelListList &	edgeLoops () const
	Return list of closed loops of boundary vertices. More...

const labelListList &	edgeLoops () const
	Return list of closed loops of boundary vertices. More...

surfaceTopo	surfaceType () const
	Calculate surface type formed by patch. More...

surfaceTopo	surfaceType () const
	Calculate surface type formed by patch. More...

bool	checkTopology (const bool report=false, labelHashSet *setPtr=NULL) const
	Check surface formed by patch for manifoldness (see above). More...

bool	checkTopology (const bool report=false, labelHashSet *setPtr=NULL) const
	Check surface formed by patch for manifoldness (see above). More...

bool	checkPointManifold (const bool report=false, labelHashSet *setPtr=NULL) const
	Checks primitivePatch for faces sharing point but not edge. More...

bool	checkPointManifold (const bool report=false, labelHashSet *setPtr=NULL) const
	Checks primitivePatch for faces sharing point but not edge. More...

void	writeVTK (const fileName &name) const
	Write VTK patch. More...

void	writeVTKNormals (const fileName &name) const
	Write VTK patch normals. More...

virtual void	movePoints (const Field< point > &)
	Correct patch after moving points. More...

virtual void	movePoints (const Field< point > &)
	Correct patch after moving points. More...

void	operator= (const PrimitivePatch< labelledTri, List, pointField, point > &)
	Assignment. More...

void	operator= (const PrimitivePatch< labelledTri, List, pointField, point > &)
	Assignment. More...

Public Member Functions inherited from List< labelledTri >
label	size () const
	Return the number of elements in the UList. More...

	List ()
	Null constructor. More...

	List (const label)
	Construct with given size. More...

	List (const label, const T &)
	Construct with given size and value for all elements. More...

	List (const List< T > &)
	Copy constructor. More...

	List (const Xfer< List< T > > &)
	Construct by transferring the parameter contents. More...

	List (List< T > &, bool reUse)
	Construct as copy or re-use as specified. More...

	List (const UList< T > &, const labelUList &mapAddressing)
	Construct as subset. More...

	List (InputIterator first, InputIterator last)
	Construct given start and end iterators. More...

	List (const FixedList< T, Size > &)
	Construct as copy of FixedList<T, Size> More...

	List (const PtrList< T > &)
	Construct as copy of PtrList<T> More...

	List (const SLList< T > &)
	Construct as copy of SLList<T> More...

	List (const UIndirectList< T > &)
	Construct as copy of UIndirectList<T> More...

	List (const BiIndirectList< T > &)
	Construct as copy of BiIndirectList<T> More...

	List (Istream &)
	Construct from Istream. More...

	List (const label s)

	List (const label s, const T &a)

	List (const List< T > &a)

	List (const Xfer< List< T > > &lst)

	List (List< T > &a, bool reUse)

	List (const UList< T > &a, const labelUList &map)

	List (const PtrList< T > &lst)

	List (const SLList< T > &lst)

	List (const UIndirectList< T > &lst)

	List (const BiIndirectList< T > &lst)

	List ()

	List (Istream &is)

autoPtr< List< T > >	clone () const
	Clone. More...

	~List ()
	Destructor. More...

void	resize (const label)
	Alias for setSize(const label) More...

void	resize (const label, const T &)
	Alias for setSize(const label, const T&) More...

void	setSize (const label)
	Reset size of List. More...

void	setSize (const label, const T &)
	Reset size of List and value for new elements. More...

void	clear ()
	Clear the list, i.e. set size to zero. More...

void	append (const T &)
	Append an element at the end of the list. More...

void	append (const UList< T > &)
	Append a List at the end of this list. More...

void	append (const UIndirectList< T > &)
	Append a UIndirectList at the end of this list. More...

void	transfer (List< T > &)
	Transfer the contents of the argument List into this list. More...

void	transfer (DynamicList< T, SizeInc, SizeMult, SizeDiv > &)
	Transfer the contents of the argument List into this list. More...

void	transfer (SortableList< T > &)
	Transfer the contents of the argument List into this list. More...

void	transfer (List< T > &a)

void	transfer (SortableList< T > &a)

Xfer< List< T > >	xfer ()
	Transfer contents to the Xfer container. More...

T &	newElmt (const label)
	Return subscript-checked element of UList. More...

void	operator= (const UList< T > &)
	Assignment from UList operator. Takes linear time. More...

void	operator= (const List< T > &)
	Assignment operator. Takes linear time. More...

void	operator= (const SLList< T > &)
	Assignment from SLList operator. Takes linear time. More...

void	operator= (const UIndirectList< T > &)
	Assignment from UIndirectList operator. Takes linear time. More...

void	operator= (const BiIndirectList< T > &)
	Assignment from BiIndirectList operator. Takes linear time. More...

void	operator= (const T &)
	Assignment of all entries to the given value. More...

Private Types
enum	segmentCutType { NEARFIRST, NEARSECOND, NOTNEAR }

enum	cellCutType { NOTCUT, SPHERE, CUT }

Private Member Functions
scalar	isoFraction (const scalar s0, const scalar s1) const
	Get location of iso value as fraction inbetween s0,s1. More...

bool	isTriCut (const triFace &tri, const scalarField &pointValues) const
	Does any edge of triangle cross iso value? More...

cellCutType	calcCutType (const PackedBoolList &, const scalarField &cellValues, const scalarField &pointValues, const label) const
	Determine whether cell is cut. More...

void	calcCutTypes (const PackedBoolList &, const scalarField &cellValues, const scalarField &pointValues)

pointIndexHit	collapseSurface (const label cellI, pointField &localPoints, DynamicList< labelledTri, 64 > &localTris) const

void	calcSnappedCc (const PackedBoolList &isTet, const scalarField &cVals, const scalarField &pVals, DynamicList< point > &triPoints, labelList &snappedCc) const
	Determine per cc whether all near cuts can be snapped to single. More...

void	genPointTris (const scalarField &cellValues, const scalarField &pointValues, const label pointI, const label faceI, const label cellI, DynamicList< point, 64 > &localTriPoints) const
	Generate triangles for face connected to pointI. More...

void	genPointTris (const scalarField &pointValues, const label pointI, const label faceI, const label cellI, DynamicList< point, 64 > &localTriPoints) const
	Generate triangles for tet connected to pointI. More...

void	calcSnappedPoint (const PackedBoolList &isTet, const scalarField &cVals, const scalarField &pVals, DynamicList< point > &triPoints, labelList &snappedPoint) const
	Determine per point whether all near cuts can be snapped to single. More...

template<class Type >
Type	generatePoint (const DynamicList< Type > &snappedPoints, const scalar s0, const Type &p0, const label p0Index, const scalar s1, const Type &p1, const label p1Index) const
	Generate single point by interpolation or snapping. More...

template<class Type >
void	generateTriPoints (const DynamicList< Type > &snapped, const scalar s0, const Type &p0, const label p0Index, const scalar s1, const Type &p1, const label p1Index, const scalar s2, const Type &p2, const label p2Index, const scalar s3, const Type &p3, const label p3Index, DynamicList< Type > &points) const

template<class Type >
void	generateTriPoints (const scalarField &cVals, const scalarField &pVals, const Field< Type > &cCoords, const Field< Type > &pCoords, const DynamicList< Type > &snappedPoints, const labelList &snappedCc, const labelList &snappedPoint, DynamicList< Type > &triPoints, DynamicList< label > &triMeshCells) const

triSurface	stitchTriPoints (const bool checkDuplicates, const List< point > &triPoints, labelList &triPointReverseMap, labelList &triMap) const

void	calcAddressing (const triSurface &surf, List< FixedList< label, 3 > > &faceEdges, labelList &edgeFace0, labelList &edgeFace1, Map< labelList > &edgeFacesRest) const
	Determine edge-face addressing. More...

Static Private Member Functions
static labelPair	findCommonPoints (const labelledTri &, const labelledTri &)

static point	calcCentre (const triSurface &)

static bool	validTri (const triSurface &, const label)
	Check single triangle for (topological) validity. More...

static bool	danglingTriangle (const FixedList< label, 3 > &fEdges, const labelList &edgeFace1)
	Is triangle (given by 3 edges) not fully connected? More...

static label	markDanglingTriangles (const List< FixedList< label, 3 > > &faceEdges, const labelList &edgeFace0, const labelList &edgeFace1, const Map< labelList > &edgeFacesRest, boolList &keepTriangles)
	Mark all non-fully connected triangles. More...

static triSurface	subsetMesh (const triSurface &s, const labelList &newToOldFaces, labelList &oldToNewPoints, labelList &newToOldPoints)

Private Attributes
const polyMesh &	mesh_
	Reference to mesh. More...

const scalarField &	cVals_

const scalarField &	pVals_

const scalar	iso_
	isoSurfaceCell value More...

const boundBox	bounds_
	Optional bounds. More...

const scalar	mergeDistance_
	When to merge points. More...

List< cellCutType >	cellCutType_
	Whether cell might be cut. More...

label	nCutCells_
	Estimated number of cut cells. More...

labelList	meshCells_
	For every triangle the original cell in mesh. More...

labelList	triPointMergeMap_
	For every unmerged triangle point the point in the triSurface. More...

DynamicList< label >	interpolatedPoints_
	triSurface points that have weighted interpolation More...

DynamicList< FixedList< label, 3 > >	interpolatedOldPoints_
	corresponding original, unmerged points More...

DynamicList< FixedList< scalar, 3 > >	interpolationWeights_
	corresponding weights More...

Additional Inherited Members
Public Types inherited from triSurface
typedef bool	BoundaryMesh
	Placeholder only, but do not remove - it is needed for GeoMesh. More...

typedef bool	BoundaryMesh
	Placeholder only, but do not remove - it is needed for GeoMesh. More...

Public Types inherited from PrimitivePatch< labelledTri, List, pointField, point >
enum	surfaceTopo
	Enumeration defining the surface type. Used in check routines. More...

enum	surfaceTopo
	Enumeration defining the surface type. Used in check routines. More...

typedef labelledTri	FaceType

typedef labelledTri	FaceType

typedef List< labelledTri >	FaceListType

typedef List< labelledTri >	FaceListType

typedef pointField	PointFieldType

typedef pointField	PointFieldType

Public Types inherited from List< labelledTri >
typedef SubList< T >	subList
	Declare type of subList. More...

Static Public Member Functions inherited from triSurface
static fileName	triSurfInstance (const Time &)
	Name of triSurface directory to use. More...

static fileName	triSurfInstance (const Time &)
	Name of triSurface directory to use. More...

Static Public Member Functions inherited from PrimitivePatch< labelledTri, List, pointField, point >
static void	writeVTK (const fileName &name, const FaceListType &faces, const Field< point > &points)
	Write generic VTK patch, HJ, 14/Jan/2009. More...

static void	writeVTKNormals (const fileName &name, const FaceListType &faces, const Field< point > &points)
	Write generic VTK patch normals, HJ, 14/Jan/2009. More...

Static Public Member Functions inherited from List< labelledTri >
static const List< T > &	null ()
	Return a null List. More...

Protected Member Functions inherited from triSurface
pointField &	storedPoints ()
	Non-const access to global points. More...

List< Face > &	storedFaces ()
	Non-const access to the faces. More...

pointField &	storedPoints ()
	Non-const access to global points. More...

List< Face > &	storedFaces ()
	Non-const access to the faces. More...

Protected Member Functions inherited from List< labelledTri >
void	size (const label)
	Override size to be inconsistent with allocated storage. More...

Detailed Description

A surface formed by the iso value. After "Polygonising A Scalar Field Using Tetrahedrons", Paul Bourke (http://paulbourke.net/geometry/polygonise) and "Regularised Marching Tetrahedra: improved iso-surface extraction", G.M. Treece, R.W. Prager and A.H. Gee.

See isoSurface. This is a variant which does tetrahedrisation from triangulation of face to cell centre instead of edge of face to two neighbouring cell centres. This gives much lower quality triangles but they are local to a cell.

Source files

Definition at line 64 of file isoSurfaceCell.H.

Member Enumeration Documentation

◆ segmentCutType

enum segmentCutType

private

Enumerator
NEARFIRST
NEARSECOND
NOTNEAR

Definition at line 70 of file isoSurfaceCell.H.

◆ cellCutType

enum cellCutType

private

Enumerator
NOTCUT
SPHERE
CUT

Definition at line 77 of file isoSurfaceCell.H.

Constructor & Destructor Documentation

◆ isoSurfaceCell()

isoSurfaceCell	(	const polyMesh &	mesh,
		const scalarField &	cellValues,
		const scalarField &	pointValues,
		const scalar	iso,
		const bool	regularise,
		const boundBox &	bounds = `boundBox::greatBox`,
		const scalar	mergeTol = `1e-6`
	)

Construct from dictionary.

Definition at line 1379 of file isoSurfaceCell.C.

References polyMesh::bounds(), Foam::endl(), Foam::findIndices(), forAll, boundBox::greatBox, Foam::inplaceRenumber(), tetMatcher::isA(), boundBox::mag(), mesh, Foam::Pout, PackedBoolList::set(), List::setSize(), DynamicList::shrink(), List::size(), FixedList::size(), List::transfer(), and isoSurface::trimToBox().

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Member Function Documentation

◆ isoFraction()

Foam::scalar isoFraction	(	const scalar	s0,
		const scalar	s1
	)		const

private

Get location of iso value as fraction inbetween s0,s1.

Definition at line 48 of file isoSurfaceCell.C.

References Foam::mag().

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◆ isTriCut()

bool isTriCut	(	const triFace &	tri,
		const scalarField &	pointValues
	)		const

private

Does any edge of triangle cross iso value?

Definition at line 67 of file isoSurfaceCell.C.

◆ calcCutType()

Foam::isoSurfaceCell::cellCutType calcCutType	(	const PackedBoolList &	isTet,
		const scalarField &	cellValues,
		const scalarField &	pointValues,
		const label	cellI
	)		const

private

Determine whether cell is cut.

Definition at line 81 of file isoSurfaceCell.C.

References f(), forAll, PackedList::get(), List::size(), and triFace().

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◆ calcCutTypes()

void calcCutTypes	(	const PackedBoolList &	isTet,
		const scalarField &	cellValues,
		const scalarField &	pointValues
	)

private

Definition at line 192 of file isoSurfaceCell.C.

References Foam::endl(), forAll, and Foam::Pout.

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◆ findCommonPoints()

Foam::labelPair findCommonPoints	(	const labelledTri &	tri0,
		const labelledTri &	tri1
	)

staticprivate

Definition at line 221 of file isoSurfaceCell.C.

References FixedList::fcIndex(), Foam::findIndex(), and FixedList::rcIndex().

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◆ calcCentre()

Foam::point calcCentre ( const triSurface & s )

staticprivate

Definition at line 257 of file isoSurfaceCell.C.

References forAll, s(), Foam::sum(), and Vector< scalar >::zero.

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◆ collapseSurface()

Foam::pointIndexHit collapseSurface	(	const label	cellI,
		pointField &	localPoints,
		DynamicList< labelledTri, 64 > &	localTris
	)		const

private

Definition at line 272 of file isoSurfaceCell.C.

References triFace::centre(), DynamicList::clearStorage(), PrimitivePatch< Face, FaceList, PointField, PointType >::faceNormals(), Foam::mag(), triSurface::markZones(), PrimitivePatch< Face, FaceList, PointField, PointType >::nEdges(), triFace::normal(), PointIndexHit< Point >::setHit(), PointIndexHit< Point >::setPoint(), List::size(), and Vector< scalar >::zero.

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◆ calcSnappedCc()

void calcSnappedCc	(	const PackedBoolList &	isTet,
		const scalarField &	cVals,
		const scalarField &	pVals,
		DynamicList< point > &	triPoints,
		labelList &	snappedCc
	)		const

private

Determine per cc whether all near cuts can be snapped to single.

point.

Definition at line 365 of file isoSurfaceCell.C.

References DynamicList::append(), DynamicList::clear(), f(), forAll, PackedList::get(), PointIndexHit< Point >::hit(), PointIndexHit< Point >::hitPoint(), s(), List::setSize(), and List::size().

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◆ genPointTris() [1/2]

void genPointTris	(	const scalarField &	cellValues,
		const scalarField &	pointValues,
		const label	pointI,
		const label	faceI,
		const label	cellI,
		DynamicList< point, 64 > &	localTriPoints
	)		const

private

Generate triangles for face connected to pointI.

Definition at line 540 of file isoSurfaceCell.C.

References DynamicList::append(), Foam::constant::physicoChemical::b, Foam::constant::universal::c, f(), FixedList::fcIndex(), Foam::findIndex(), FixedList::rcIndex(), s(), and List::size().

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◆ genPointTris() [2/2]

void genPointTris	(	const scalarField &	pointValues,
		const label	pointI,
		const label	faceI,
		const label	cellI,
		DynamicList< point, 64 > &	localTriPoints
	)		const

private

Generate triangles for tet connected to pointI.

Definition at line 613 of file isoSurfaceCell.C.

References DynamicList::append(), Foam::constant::physicoChemical::b, Foam::constant::universal::c, f(), f1, Foam::findIndex(), forAll, and s().

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◆ calcSnappedPoint()

void calcSnappedPoint	(	const PackedBoolList &	isTet,
		const scalarField &	cVals,
		const scalarField &	pVals,
		DynamicList< point > &	triPoints,
		labelList &	snappedPoint
	)		const

private

Determine per point whether all near cuts can be snapped to single.

point.

Definition at line 694 of file isoSurfaceCell.C.

References DynamicList::append(), DynamicList::clear(), HashTable::clear(), polyPatch::coupled(), f(), PrimitivePatch< Face, FaceList, PointField, PointType >::faceNormals(), forAll, PackedList::get(), HashSet< Key, Hash >::insert(), Foam::magSqr(), triSurface::markZones(), n, PrimitivePatch< Face, FaceList, PointField, PointType >::nEdges(), patches, pFaces, points, PackedBoolList::set(), List::setSize(), List::size(), polyPatch::start(), Foam::sum(), and syncTools::syncPointPositions().

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◆ generatePoint()

Type generatePoint	(	const DynamicList< Type > &	snappedPoints,
		const scalar	s0,
		const Type &	p0,
		const label	p0Index,
		const scalar	s1,
		const Type &	p1,
		const label	p1Index
	)		const

private

Generate single point by interpolation or snapping.

Definition at line 35 of file isoSurfaceCellTemplates.C.

References Foam::mag(), and s().

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◆ generateTriPoints() [1/2]

void generateTriPoints	(	const DynamicList< Type > &	snapped,
		const scalar	s0,
		const Type &	p0,
		const label	p0Index,
		const scalar	s1,
		const Type &	p1,
		const label	p1Index,
		const scalar	s2,
		const Type &	p2,
		const label	p2Index,
		const scalar	s3,
		const Type &	p3,
		const label	p3Index,
		DynamicList< Type > &	points
	)		const

private

Definition at line 77 of file isoSurfaceCellTemplates.C.

References DynamicList::append(), and Foam::Swap().

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◆ generateTriPoints() [2/2]

void generateTriPoints	(	const scalarField &	cVals,
		const scalarField &	pVals,
		const Field< Type > &	cCoords,
		const Field< Type > &	pCoords,
		const DynamicList< Type > &	snappedPoints,
		const labelList &	snappedCc,
		const labelList &	snappedPoint,
		DynamicList< Type > &	triPoints,
		DynamicList< label > &	triMeshCells
	)		const

private

Definition at line 323 of file isoSurfaceCellTemplates.C.

References DynamicList::append(), Foam::endl(), f(), f1, Foam::findIndex(), forAll, tetMatcher::isA(), DynamicList::shrink(), FixedList::size(), and WarningInFunction.

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◆ stitchTriPoints()

Foam::triSurface stitchTriPoints	(	const bool	checkDuplicates,
		const List< point > &	triPoints,
		labelList &	triPointReverseMap,
		labelList &	triMap
	)		const

private

Definition at line 912 of file isoSurfaceCell.C.

References Foam::abort(), DynamicList::append(), Foam::endl(), Foam::FatalError, FatalErrorInFunction, forAll, Foam::mergePoints(), Foam::Pout, List::setSize(), List::size(), FixedList::size(), and List::transfer().

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◆ validTri()

bool validTri	(	const triSurface &	surf,
		const label	faceI
	)

staticprivate

Check single triangle for (topological) validity.

Definition at line 1060 of file isoSurfaceCell.C.

References Foam::endl(), f(), PrimitivePatch< Face, FaceList, PointField, PointType >::faceFaces(), forAll, PrimitivePatch< Face, FaceList, PointField, PointType >::points(), and WarningInFunction.

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◆ calcAddressing()

void calcAddressing	(	const triSurface &	surf,
		List< FixedList< label, 3 > > &	faceEdges,
		labelList &	edgeFace0,
		labelList &	edgeFace1,
		Map< labelList > &	edgeFacesRest
	)		const

private

Determine edge-face addressing.

Definition at line 1128 of file isoSurfaceCell.C.

References Foam::endl(), forAll, Foam::mergePoints(), points, PrimitivePatch< Face, FaceList, PointField, PointType >::points(), Foam::Pout, List::setSize(), and List::size().

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◆ danglingTriangle()

bool danglingTriangle	(	const FixedList< label, 3 > &	fEdges,
		const labelList &	edgeFace1
	)

staticprivate

Is triangle (given by 3 edges) not fully connected?

Definition at line 1230 of file isoSurfaceCell.C.

References forAll.

◆ markDanglingTriangles()

Foam::label markDanglingTriangles	(	const List< FixedList< label, 3 > > &	faceEdges,
		const labelList &	edgeFace0,
		const labelList &	edgeFace1,
		const Map< labelList > &	edgeFacesRest,
		boolList &	keepTriangles
	)

staticprivate

Mark all non-fully connected triangles.

Definition at line 1257 of file isoSurfaceCell.C.

References forAll, forAllConstIter(), and List::setSize().

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◆ subsetMesh()

Foam::triSurface subsetMesh	(	const triSurface &	s,
		const labelList &	newToOldFaces,
		labelList &	oldToNewPoints,
		labelList &	newToOldPoints
	)

staticprivate

Definition at line 1305 of file isoSurfaceCell.C.

References f(), forAll, s(), List::setSize(), and List::size().

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◆ TypeName()

TypeName ( "isoSurfaceCell" )

Runtime type information.

◆ meshCells()

const labelList& meshCells ( ) const

inline

For every face original cell in mesh.

Definition at line 333 of file isoSurfaceCell.H.

References isoSurfaceCell::meshCells_.

Referenced by sampledIsoSurfaceCell::updateGeometry().

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◆ interpolate() [1/2]

tmp<Field<Type> > interpolate	(	const Field< Type > &	cCoords,
		const Field< Type > &	pCoords
	)		const

Interpolates cCoords,pCoords.

◆ interpolate() [2/2]

Foam::tmp<Foam::Field<Type> > interpolate	(	const Field< Type > &	cCoords,
		const Field< Type > &	pCoords
	)		const

Definition at line 528 of file isoSurfaceCellTemplates.C.

References Foam::MULES::interpolate(), and points.

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Field Documentation

◆ mesh_

const polyMesh& mesh_

private

Reference to mesh.

Definition at line 86 of file isoSurfaceCell.H.

◆ cVals_

const scalarField& cVals_

private

Definition at line 88 of file isoSurfaceCell.H.

◆ pVals_

const scalarField& pVals_

private

Definition at line 90 of file isoSurfaceCell.H.

◆ iso_

const scalar iso_

private

isoSurfaceCell value

Definition at line 93 of file isoSurfaceCell.H.

◆ bounds_

const boundBox bounds_

private

Optional bounds.

Definition at line 96 of file isoSurfaceCell.H.

◆ mergeDistance_

const scalar mergeDistance_

private

When to merge points.

Definition at line 99 of file isoSurfaceCell.H.

◆ cellCutType_

List<cellCutType> cellCutType_

private

Whether cell might be cut.

Definition at line 102 of file isoSurfaceCell.H.

◆ nCutCells_

label nCutCells_

private

Estimated number of cut cells.

Definition at line 105 of file isoSurfaceCell.H.

◆ meshCells_

labelList meshCells_

private

For every triangle the original cell in mesh.

Definition at line 108 of file isoSurfaceCell.H.

Referenced by isoSurfaceCell::meshCells().

◆ triPointMergeMap_

labelList triPointMergeMap_

private

For every unmerged triangle point the point in the triSurface.

Definition at line 111 of file isoSurfaceCell.H.

◆ interpolatedPoints_

DynamicList<label> interpolatedPoints_

private

triSurface points that have weighted interpolation

Definition at line 114 of file isoSurfaceCell.H.

◆ interpolatedOldPoints_

DynamicList<FixedList<label, 3> > interpolatedOldPoints_

private

corresponding original, unmerged points

Definition at line 117 of file isoSurfaceCell.H.

◆ interpolationWeights_

DynamicList<FixedList<scalar, 3> > interpolationWeights_

private

corresponding weights

Definition at line 120 of file isoSurfaceCell.H.

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

src/sampling/sampledSurface/isoSurface/isoSurfaceCell.H
src/sampling/sampledSurface/isoSurface/isoSurfaceCell.C
src/sampling/sampledSurface/isoSurface/isoSurfaceCellTemplates.C

Public Member Functions

Private Types

Private Member Functions

Static Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ segmentCutType

◆ cellCutType

Constructor & Destructor Documentation

◆ isoSurfaceCell()

Member Function Documentation

◆ isoFraction()

◆ isTriCut()

◆ calcCutType()

◆ calcCutTypes()

◆ findCommonPoints()

◆ calcCentre()

◆ collapseSurface()

◆ calcSnappedCc()

◆ genPointTris() [1/2]

◆ genPointTris() [2/2]

◆ calcSnappedPoint()

◆ generatePoint()

◆ generateTriPoints() [1/2]

◆ generateTriPoints() [2/2]

◆ stitchTriPoints()

◆ validTri()

◆ calcAddressing()

◆ danglingTriangle()

◆ markDanglingTriangles()

◆ subsetMesh()

◆ TypeName()

◆ meshCells()

◆ interpolate() [1/2]

◆ interpolate() [2/2]

Field Documentation

◆ mesh_

◆ cVals_

◆ pVals_

◆ iso_

◆ bounds_

◆ mergeDistance_

◆ cellCutType_

◆ nCutCells_

◆ meshCells_

◆ triPointMergeMap_

◆ interpolatedPoints_

◆ interpolatedOldPoints_

◆ interpolationWeights_