FreeFOAM The Cross-Platform CFD Toolkit
geomCellLooper Class Reference

Implementation of cellLooper. Does pure geometric cut through cell. More...

#include <dynamicMesh/geomCellLooper.H>


Detailed Description

Implementation of cellLooper. Does pure geometric cut through cell.

Handles all cell shapes in the same way: cut edges with plane through cell centre and normal in direction of provided direction. Snaps cuts close to edge endpoints (close = snapTol * minEdgeLen) to vertices.

Currently determines cuts through edges (and edgeendpoints close to plane) in random order and then sorts them acc. to angle. Could be converted to use walk but problem is that face can be cut multiple times (since does not need to be convex). Another problem is that edges parallel to plane might not be cut. So these are handled by looking at the distance from edge endpoints to the plane.

Source files

Definition at line 64 of file geomCellLooper.H.

+ Inheritance diagram for geomCellLooper:
+ Collaboration diagram for geomCellLooper:

List of all members.

Public Member Functions

 TypeName ("geomCellLooper")
 Runtime type information.
 geomCellLooper (const polyMesh &mesh)
 Construct from components.
virtual ~geomCellLooper ()
virtual bool cut (const vector &refDir, const label cellI, const boolList &vertIsCut, const boolList &edgeIsCut, const scalarField &edgeWeight, labelList &loop, scalarField &loopWeights) const
 Create cut along circumference of cellI. Gets current mesh cuts.
virtual bool cut (const plane &cutPlane, const label cellI, const boolList &vertIsCut, const boolList &edgeIsCut, const scalarField &edgeWeight, labelList &loop, scalarField &loopWeights) const
 Same but now also base point of cut provided (instead of always.
- Public Member Functions inherited from cellLooper
 TypeName ("cellLooper")
 Runtime type information.
 declareRunTimeSelectionTable (autoPtr, cellLooper, word,(const polyMesh &mesh),(mesh))
 cellLooper (const polyMesh &mesh)
 Construct from components.
autoPtr< cellLooperclone () const
 Clone.
virtual ~cellLooper ()
- Public Member Functions inherited from edgeVertex
 edgeVertex (const polyMesh &mesh)
 Construct from mesh.
const polyMeshmesh () const
bool isEdge (const label eVert) const
label getEdge (const label eVert) const
label getVertex (const label eVert) const
label vertToEVert (const label vertI) const
label edgeToEVert (const label edgeI) const
point coord (const label cut, const scalar weight) const
label cutPairToEdge (const label cut0, const label cut1) const
OstreamwriteCut (Ostream &os, const label cut, const scalar) const
 Write cut description to Ostream.
OstreamwriteCuts (Ostream &os, const labelList &, const scalarField &) const
 Write cut descriptions to Ostream.

Static Public Member Functions

static scalar snapTol ()
static void setSnapTol (const scalar tol)
- Static Public Member Functions inherited from cellLooper
static autoPtr< cellLooperNew (const word &type, const polyMesh &mesh)
 Return a reference to the selected cellLooper.
- Static Public Member Functions inherited from edgeVertex
static void updateLabels (const labelList &map, List< refineCell > &)
 Update refine list from map. Used to update cell/face labels.
static void updateLabels (const labelList &map, Map< label > &)
 Update map from map. Used to update cell/face labels.
static void updateLabels (const labelList &map, labelHashSet &)
 Update map from map. Used to update cell/face labels.
static bool isEdge (const primitiveMesh &mesh, const label eVert)
 is eVert an edge?
static label getEdge (const primitiveMesh &mesh, const label eVert)
 convert eVert to edge label
static label getVertex (const primitiveMesh &mesh, const label eVert)
 convert eVert to vertex label
static label vertToEVert (const primitiveMesh &mesh, const label vertI)
 Convert pointI to eVert.
static label edgeToEVert (const primitiveMesh &mesh, const label edgeI)
 Convert edgeI to eVert.
static point coord (const primitiveMesh &, const label cut, const scalar weight)
 Return coordinate of cut (uses weight if edgeCut)
static label cutPairToEdge (const primitiveMesh &, const label cut0, const label cut1)
 Find mesh edge (or -1) between two cuts.

Additional Inherited Members

- Protected Member Functions inherited from cellLooper
labelList getVertFacesNonEdge (const label cellI, const label edgeI, const label vertI) const
 Get faces (on cell) connected to vertI which are not using edgeI.
label getFirstVertEdge (const label faceI, const label vertI) const
 Get first edge connected to vertI and on faceI.
labelList getVertEdgesNonFace (const label cellI, const label faceI, const label vertI) const
 Get edges (on cell) connected to vertI which are not on faceI.
label getMisAlignedEdge (const vector &refDir, const label cellI) const
 Return edge from cellEdges that is most perpendicular.

Constructor & Destructor Documentation

geomCellLooper ( const polyMesh mesh)

Construct from components.

Definition at line 214 of file geomCellLooper.C.

~geomCellLooper ( )
virtual

Definition at line 222 of file geomCellLooper.C.


Member Function Documentation

TypeName ( "geomCellLooper"  )

Runtime type information.

static scalar snapTol ( )
inlinestatic

Definition at line 130 of file geomCellLooper.H.

static void setSnapTol ( const scalar  tol)
inlinestatic

Definition at line 135 of file geomCellLooper.H.

bool cut ( const vector refDir,
const label  cellI,
const boolList vertIsCut,
const boolList edgeIsCut,
const scalarField edgeWeight,
labelList loop,
scalarField loopWeights 
) const
virtual

Create cut along circumference of cellI. Gets current mesh cuts.

Cut along circumference is expressed as loop of cuts plus weights for cuts along edges (only valid for edge cuts). Return true if successful cut.

Implements cellLooper.

Reimplemented in topoCellLooper, and hexCellLooper.

Definition at line 229 of file geomCellLooper.C.

References mesh.

Referenced by hexCellLooper::cut().


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