CV2D Class Reference

Conformal-Voronoi 2D automatic mesher with grid or read initial points and point position relaxation with optional "squarification". More...

Inheritance diagram for CV2D:

Collaboration diagram for CV2D:

Public Member Functions
	ClassName ("CV2D")
	CV2D (const Time &runTime, const dictionary &controlDict)
	~CV2D ()
const cv2DControls &	meshControls () const
const point2D &	toPoint2D (const Foam::point &) const
const point2DField	toPoint2D (const pointField &) const
Foam::point	toPoint3D (const point2D &) const
point2DFromPoint	toPoint2D (const Point &) const
PointFromPoint2D	toPoint (const point2D &) const
Foam::point	toPoint3D (const Point &) const
void	insertPoints (const point2DField &points, const scalar nearness)
void	insertPoints (const fileName &pointFileName)
void	insertGrid ()
void	insertSurfacePointPairs ()
void	boundaryConform ()
void	removeSurfacePointPairs ()
void	movePoint (const Vertex_handle &vh, const Point &P)
void	newPoints ()
void	extractPatches (wordList &patchNames, labelList &patchSizes, EdgeMap< label > &mapEdgesRegion, EdgeMap< label > &indirectPatchEdge) const
void	writePoints (const fileName &fName, bool internalOnly) const
void	writeTriangles (const fileName &fName, bool internalOnly) const
void	writeFaces (const fileName &fName, bool internalOnly) const
void	calcDual (point2DField &dualPoints, faceList &dualFaces, wordList &patchNames, labelList &patchSizes, EdgeMap< label > &mapEdgesRegion, EdgeMap< label > &indirectPatchEdge) const
void	writePatch (const fileName &fName) const
void	write () const

Public Attributes
const typedef point2D &	point2DFromPoint
const typedef Point &	PointFromPoint2D

Detailed Description

Conformal-Voronoi 2D automatic mesher with grid or read initial points and point position relaxation with optional "squarification".

There are a substantial number of options to this mesher read from CV2DMesherDict file e.g.:

Min cell size used in tolerances when inserting points for boundary conforming. Also used to as the grid spacing using in insertGrid. minCellSize 0.05;

Feature angle used to insert feature points 0 = all features, 180 = no features featureAngle 45;

Maximum quadrant angle allowed at a concave corner before additional "mitering" lines are added maxQuadAngle 110;

Should the mesh be square-dominated or of unbiased hexagons squares yes;

Near-wall region where cells are aligned with the wall specified as a number of cell layers nearWallAlignedDist 3;

Chose if the cell orientation should relax during the iterations or remain fixed to the x-y directions relaxOrientation no;

Insert near-boundary point mirror or point-pairs insertSurfaceNearestPointPairs yes;

Mirror near-boundary points rather than insert point-pairs mirrorPoints no;

Insert point-pairs vor dual-cell vertices very near the surface insertSurfaceNearPointPairs yes;

Choose if to randomise the initial grid created by insertGrid. randomiseInitialGrid yes;

Perturbation fraction, 1 = cell-size. randomPurturbation 0.1;

Number of relaxation iterations. nIterations 5;

Relaxation factor at the start of the iteration sequence. 0.5 is a sensible maximum and < 0.2 converges better. relaxationFactorStart 0.8;

Relaxation factor at the end of the iteration sequence. Should be <= relaxationFactorStart relaxationFactorEnd 0;

writeInitialTriangulation no; writeFeatureTriangulation no; writeNearestTriangulation no; writeInsertedPointPairs no; writeFinalTriangulation yes;

Maximum number of iterations used in boundaryConform. maxBoundaryConformingIter 5;

minEdgeLenCoeff 0.5; maxNotchLenCoeff 0.3; minNearPointDistCoeff 0.25; ppDistCoeff 0.05;

Source files

• CV2D.H
• CGALTriangulation2Ddefs.H
• indexedVertex.H
• indexedFace.H
• CV2DI.H
• CV2D.C
• CV2DIO.C
• tolerances.C
• controls.C
• insertFeaturePoints.C
• insertSurfaceNearestPointPairs.C
• insertSurfaceNearPointPairs.C
• insertBoundaryConformPointPairs.C

Definition at line 142 of file CV2D.H.

Constructor & Destructor Documentation

CV2D()

CV2D	(	const Time &	runTime,
		const dictionary &	controlDict
	)

~CV2D()

~CV2D

(

)

Member Function Documentation

ClassName()

ClassName

(

"CV2D"

)

meshControls()

const Foam::cv2DControls & meshControls ( ) const

inline

Definition at line 112 of file CV2DI.H.

toPoint2D() [1/3]

const Foam::point2D & toPoint2D ( const Foam::point &  p ) const

inline

Definition at line 118 of file CV2DI.H.

References p.

toPoint2D() [2/3]

const Foam::point2DField toPoint2D ( const pointField &  p ) const

inline

Definition at line 124 of file CV2DI.H.

References forAll, p, x, and y.

toPoint3D() [1/2]

Foam::point toPoint3D ( const point2D &  p ) const

inline

Definition at line 135 of file CV2DI.H.

References p.

toPoint2D() [3/3]

Foam::CV2D::point2DFromPoint toPoint2D ( const Point &  P ) const

inline

Definition at line 156 of file CV2DI.H.

toPoint()

Foam::CV2D::PointFromPoint2D toPoint ( const point2D &  p ) const

inline

Definition at line 162 of file CV2DI.H.

References p.

toPoint3D() [2/2]

Foam::point toPoint3D ( const Point &  P ) const

inline

Definition at line 170 of file CV2DI.H.

insertPoints() [1/2]

void insertPoints	(	const point2DField &	points,
		const scalar	nearness
	)

insertPoints() [2/2]

void insertPoints

(

const fileName &

pointFileName

)

insertGrid()

void insertGrid

(

)

insertSurfacePointPairs()

void insertSurfacePointPairs

(

)

boundaryConform()

void boundaryConform

(

)

removeSurfacePointPairs()

void removeSurfacePointPairs

(

)

movePoint()

void movePoint ( const Vertex_handle &  vh, const Point &  P  )

inline

Definition at line 176 of file CV2DI.H.

References insert().

Here is the call graph for this function:

newPoints()

void newPoints

(

)

extractPatches()

void extractPatches	(	wordList &	patchNames,
		labelList &	patchSizes,
		EdgeMap< label > &	mapEdgesRegion,
		EdgeMap< label > &	indirectPatchEdge
	)		const

writePoints()

void writePoints	(	const fileName &	fName,
		bool	internalOnly
	)		const

writeTriangles()

void writeTriangles	(	const fileName &	fName,
		bool	internalOnly
	)		const

writeFaces()

void writeFaces	(	const fileName &	fName,
		bool	internalOnly
	)		const

calcDual()

void calcDual	(	point2DField &	dualPoints,
		faceList &	dualFaces,
		wordList &	patchNames,
		labelList &	patchSizes,
		EdgeMap< label > &	mapEdgesRegion,
		EdgeMap< label > &	indirectPatchEdge
	)		const

writePatch()

void writePatch

(

const fileName &

fName

)

const

write()

void write

(

)

const

Member Data Documentation

point2DFromPoint

const typedef point2D& point2DFromPoint

Definition at line 352 of file CV2D.H.

PointFromPoint2D

const typedef Point& PointFromPoint2D

Definition at line 353 of file CV2D.H.

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

• applications/utilities/mesh/generation/foamyMesh/foamyQuadMesh/CV2D.H
• applications/utilities/mesh/generation/foamyMesh/foamyQuadMesh/CV2DI.H