an empty cell used as a place-holder during processing More...

#include <vtkEmptyCell.h>

Inheritance diagram for vtkEmptyCell:

Collaboration diagram for vtkEmptyCell:

Public Types
typedef vtkCell	Superclass

Public Types inherited from vtkCell
typedef vtkObject	Superclass

Public Types inherited from vtkObject
typedef vtkObjectBase	Superclass

Public Member Functions
virtual int	IsA (const char *type)

vtkEmptyCell *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)

int	GetCellType ()

int	GetCellDimension ()

int	GetNumberOfEdges ()

int	GetNumberOfFaces ()

vtkCell *	GetEdge (int)

vtkCell *	GetFace (int)

int	CellBoundary (int subId, double pcoords[3], vtkIdList *pts)

void	Contour (double value, vtkDataArray cellScalars, vtkIncrementalPointLocator locator, vtkCellArray verts1, vtkCellArray lines, vtkCellArray verts2, vtkPointData inPd, vtkPointData outPd, vtkCellData inCd, vtkIdType cellId, vtkCellData *outCd)

void	Clip (double value, vtkDataArray cellScalars, vtkIncrementalPointLocator locator, vtkCellArray pts, vtkPointData inPd, vtkPointData outPd, vtkCellData inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut)

int	EvaluatePosition (double x[3], double closestPoint, int &subId, double pcoords[3], double &dist2, double weights)

void	EvaluateLocation (int &subId, double pcoords[3], double x[3], double *weights)

int	IntersectWithLine (double p1[3], double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId)

int	Triangulate (int index, vtkIdList ptIds, vtkPoints pts)

void	Derivatives (int subId, double pcoords[3], double values, int dim, double derivs)

Public Member Functions inherited from vtkCell
vtkCell *	NewInstance () const

void	Initialize (int npts, vtkIdType pts, vtkPoints p)

virtual void	ShallowCopy (vtkCell *c)

virtual void	DeepCopy (vtkCell *c)

virtual int	IsLinear ()

virtual int	RequiresInitialization ()

virtual void	Initialize ()

virtual int	IsExplicitCell ()

virtual int	RequiresExplicitFaceRepresentation ()

virtual void	SetFaces (vtkIdType *vtkNotUsed(faces))

virtual vtkIdType *	GetFaces ()

vtkPoints *	GetPoints ()

vtkIdType	GetNumberOfPoints ()

vtkIdList *	GetPointIds ()

vtkIdType	GetPointId (int ptId)

void	GetBounds (double bounds[6])

double *	GetBounds ()

double	GetLength2 ()

virtual int	GetParametricCenter (double pcoords[3])

virtual double	GetParametricDistance (double pcoords[3])

virtual int	IsPrimaryCell ()

virtual double *	GetParametricCoords ()

virtual void	InterpolateFunctions (double vtkNotUsed(pcoords)[3], double *vtkNotUsed(weight))

virtual void	InterpolateDerivs (double vtkNotUsed(pcoords)[3], double *vtkNotUsed(derivs))

Public Member Functions inherited from vtkObject
vtkObject *	NewInstance () const

virtual void	DebugOn ()

virtual void	DebugOff ()

bool	GetDebug ()

void	SetDebug (bool debugFlag)

virtual void	Modified ()

virtual unsigned long	GetMTime ()

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)

unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)

vtkCommand *	GetCommand (unsigned long tag)

void	RemoveObserver (vtkCommand *)

void	RemoveObservers (unsigned long event, vtkCommand *)

void	RemoveObservers (const char event, vtkCommand )

int	HasObserver (unsigned long event, vtkCommand *)

int	HasObserver (const char event, vtkCommand )

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

int	HasObserver (unsigned long event)

int	HasObserver (const char *event)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)

int	InvokeEvent (unsigned long event, void *callData)

int	InvokeEvent (const char event, void callData)

int	InvokeEvent (unsigned long event)

int	InvokeEvent (const char *event)

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const

virtual void	Delete ()

virtual void	FastDelete ()

void	Print (ostream &os)

virtual void	PrintHeader (ostream &os, vtkIndent indent)

virtual void	PrintTrailer (ostream &os, vtkIndent indent)

virtual void	Register (vtkObjectBase *o)

virtual void	UnRegister (vtkObjectBase *o)

int	GetReferenceCount ()

void	SetReferenceCount (int)

void	PrintRevisions (ostream &)

Static Public Member Functions
static vtkEmptyCell *	New ()

static int	IsTypeOf (const char *type)

static vtkEmptyCell *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkCell
static int	IsTypeOf (const char *type)

static vtkCell *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkObject
static int	IsTypeOf (const char *type)

static vtkObject *	SafeDownCast (vtkObjectBase *o)

static vtkObject *	New ()

static void	BreakOnError ()

static void	SetGlobalWarningDisplay (int val)

static void	GlobalWarningDisplayOn ()

static void	GlobalWarningDisplayOff ()

static int	GetGlobalWarningDisplay ()

Static Public Member Functions inherited from vtkObjectBase
static int	IsTypeOf (const char *name)

static vtkObjectBase *	New ()

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkEmptyCell ()

	~vtkEmptyCell ()

Protected Member Functions inherited from vtkCell
	vtkCell ()

	~vtkCell ()

Protected Member Functions inherited from vtkObject
	vtkObject ()

virtual	~vtkObject ()

virtual void	RegisterInternal (vtkObjectBase *, int check)

virtual void	UnRegisterInternal (vtkObjectBase *, int check)

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=NULL)

void	InternalReleaseFocus ()

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	CollectRevisions (ostream &)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Additional Inherited Members
Public Attributes inherited from vtkCell
vtkPoints *	Points

vtkIdList *	PointIds

Protected Attributes inherited from vtkCell
double	Bounds [6]

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Detailed Description

an empty cell used as a place-holder during processing

vtkEmptyCell is a concrete implementation of vtkCell. It is used during processing to represented a deleted element.

Tests:: vtkEmptyCell (Tests)

Definition at line 31 of file vtkEmptyCell.h.

Member Typedef Documentation

◆ Superclass

typedef vtkCell vtkEmptyCell::Superclass

Definition at line 35 of file vtkEmptyCell.h.

Constructor & Destructor Documentation

◆ vtkEmptyCell()

vtkEmptyCell::vtkEmptyCell ( )

inlineprotected

Definition at line 71 of file vtkEmptyCell.h.

◆ ~vtkEmptyCell()

vtkEmptyCell::~vtkEmptyCell ( )

inlineprotected

Definition at line 72 of file vtkEmptyCell.h.

Member Function Documentation

◆ New()

static vtkEmptyCell* vtkEmptyCell::New ( )

static

◆ IsTypeOf()

static int vtkEmptyCell::IsTypeOf ( const char * type )

static

◆ IsA()

virtual int vtkEmptyCell::IsA ( const char * name )

virtual

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkCell.

◆ SafeDownCast()

static vtkEmptyCell* vtkEmptyCell::SafeDownCast ( vtkObjectBase * o )

static

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkEmptyCell::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkCell.

◆ NewInstance()

vtkEmptyCell* vtkEmptyCell::NewInstance ( ) const

◆ PrintSelf()

void vtkEmptyCell::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)

virtual

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkCell.

◆ GetCellType()

int vtkEmptyCell::GetCellType ( )

inlinevirtual

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 40 of file vtkEmptyCell.h.

◆ GetCellDimension()

int vtkEmptyCell::GetCellDimension ( )

inlinevirtual

Return the topological dimensional of the cell (0,1,2, or 3).

Implements vtkCell.

Definition at line 41 of file vtkEmptyCell.h.

◆ GetNumberOfEdges()

int vtkEmptyCell::GetNumberOfEdges ( )

inlinevirtual

Return the number of edges in the cell.

Implements vtkCell.

Definition at line 42 of file vtkEmptyCell.h.

◆ GetNumberOfFaces()

int vtkEmptyCell::GetNumberOfFaces ( )

inlinevirtual

Return the number of faces in the cell.

Implements vtkCell.

Definition at line 43 of file vtkEmptyCell.h.

◆ GetEdge()

vtkCell* vtkEmptyCell::GetEdge ( int edgeId )

inlinevirtual

Return the edge cell from the edgeId of the cell.

Implements vtkCell.

Definition at line 44 of file vtkEmptyCell.h.

◆ GetFace()

vtkCell* vtkEmptyCell::GetFace ( int faceId )

inlinevirtual

Return the face cell from the faceId of the cell.

Implements vtkCell.

Definition at line 45 of file vtkEmptyCell.h.

◆ CellBoundary()

int vtkEmptyCell::CellBoundary	(	int	subId,
		double	pcoords[3],
		vtkIdList *	pts
	)

virtual

Given parametric coordinates of a point, return the closest cell boundary, and whether the point is inside or outside of the cell. The cell boundary is defined by a list of points (pts) that specify a face (3D cell), edge (2D cell), or vertex (1D cell). If the return value of the method is != 0, then the point is inside the cell.

Implements vtkCell.

◆ Contour()

void vtkEmptyCell::Contour	(	double	value,
		vtkDataArray *	cellScalars,
		vtkIncrementalPointLocator *	locator,
		vtkCellArray *	verts,
		vtkCellArray *	lines,
		vtkCellArray *	polys,
		vtkPointData *	inPd,
		vtkPointData *	outPd,
		vtkCellData *	inCd,
		vtkIdType	cellId,
		vtkCellData *	outCd
	)

virtual

Generate contouring primitives. The scalar list cellScalars are scalar values at each cell point. The point locator is essentially a points list that merges points as they are inserted (i.e., prevents duplicates). Contouring primitives can be vertices, lines, or polygons. It is possible to interpolate point data along the edge by providing input and output point data - if outPd is NULL, then no interpolation is performed. Also, if the output cell data is non-NULL, the cell data from the contoured cell is passed to the generated contouring primitives. (Note: the CopyAllocate() method must be invoked on both the output cell and point data. The cellId refers to the cell from which the cell data is copied.)

Implements vtkCell.

◆ Clip()

void vtkEmptyCell::Clip	(	double	value,
		vtkDataArray *	cellScalars,
		vtkIncrementalPointLocator *	locator,
		vtkCellArray *	connectivity,
		vtkPointData *	inPd,
		vtkPointData *	outPd,
		vtkCellData *	inCd,
		vtkIdType	cellId,
		vtkCellData *	outCd,
		int	insideOut
	)

virtual

Cut (or clip) the cell based on the input cellScalars and the specified value. The output of the clip operation will be one or more cells of the same topological dimension as the original cell. The flag insideOut controls what part of the cell is considered inside - normally cell points whose scalar value is greater than "value" are considered inside. If insideOut is on, this is reversed. Also, if the output cell data is non-NULL, the cell data from the clipped cell is passed to the generated contouring primitives. (Note: the CopyAllocate() method must be invoked on both the output cell and point data. The cellId refers to the cell from which the cell data is copied.)

Implements vtkCell.

◆ EvaluatePosition()

int vtkEmptyCell::EvaluatePosition	(	double	x[3],
		double *	closestPoint,
		int &	subId,
		double	pcoords[3],
		double &	dist2,
		double *	weights
	)

virtual

Given a point x[3] return inside(=1), outside(=0) cell, or (-1) computational problem encountered; evaluate parametric coordinates, sub-cell id (!=0 only if cell is composite), distance squared of point x[3] to cell (in particular, the sub-cell indicated), closest point on cell to x[3] (unless closestPoint is null, in which case, the closest point and dist2 are not found), and interpolation weights in cell. (The number of weights is equal to the number of points defining the cell). Note: on rare occasions a -1 is returned from the method. This means that numerical error has occurred and all data returned from this method should be ignored. Also, inside/outside is determine parametrically. That is, a point is inside if it satisfies parametric limits. This can cause problems for cells of topological dimension 2 or less, since a point in 3D can project onto the cell within parametric limits but be "far" from the cell. Thus the value dist2 may be checked to determine true in/out.

Implements vtkCell.

◆ EvaluateLocation()

void vtkEmptyCell::EvaluateLocation	(	int &	subId,
		double	pcoords[3],
		double	x[3],
		double *	weights
	)

virtual

Determine global coordinate (x[3]) from subId and parametric coordinates. Also returns interpolation weights. (The number of weights is equal to the number of points in the cell.)

Implements vtkCell.

◆ IntersectWithLine()

int vtkEmptyCell::IntersectWithLine	(	double	p1[3],
		double	p2[3],
		double	tol,
		double &	t,
		double	x[3],
		double	pcoords[3],
		int &	subId
	)

virtual

Intersect with a ray. Return parametric coordinates (both line and cell) and global intersection coordinates, given ray definition p1[3], p2[3] and tolerance tol. The method returns non-zero value if intersection occurs. A parametric distance t between 0 and 1 along the ray representing the intersection point, the point coordinates x[3] in data coordinates and also pcoords[3] in parametric coordinates. subId is the index within the cell if a composed cell like a triangle strip.

Implements vtkCell.

◆ Triangulate()

int vtkEmptyCell::Triangulate	(	int	index,
		vtkIdList *	ptIds,
		vtkPoints *	pts
	)

virtual

Generate simplices of proper dimension. If cell is 3D, tetrahedron are generated; if 2D triangles; if 1D lines; if 0D points. The form of the output is a sequence of points, each n+1 points (where n is topological cell dimension) defining a simplex. The index is a parameter that controls which triangulation to use (if more than one is possible). If numerical degeneracy encountered, 0 is returned, otherwise 1 is returned. This method does not insert new points: all the points that define the simplices are the points that define the cell.

Implements vtkCell.

◆ Derivatives()

void vtkEmptyCell::Derivatives	(	int	subId,
		double	pcoords[3],
		double *	values,
		int	dim,
		double *	derivs
	)

virtual

Compute derivatives given cell subId and parametric coordinates. The values array is a series of data value(s) at the cell points. There is a one-to-one correspondence between cell point and data value(s). Dim is the number of data values per cell point. Derivs are derivatives in the x-y-z coordinate directions for each data value. Thus, if computing derivatives for a scalar function in a hexahedron, dim=1, 8 values are supplied, and 3 deriv values are returned (i.e., derivatives in x-y-z directions). On the other hand, if computing derivatives of velocity (vx,vy,vz) dim=3, 24 values are supplied ((vx,vy,vz)1, (vx,vy,vz)2, ....()8), and 9 deriv values are returned ((d(vx)/dx),(d(vx)/dy),(d(vx)/dz), (d(vy)/dx),(d(vy)/dy), (d(vy)/dz), (d(vz)/dx),(d(vz)/dy),(d(vz)/dz)).

Implements vtkCell.

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

dox/opt/build/vtk6-6.3.0+dfsg2/Common/DataModel/vtkEmptyCell.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Superclass

Constructor & Destructor Documentation

◆ vtkEmptyCell()

◆ ~vtkEmptyCell()

Member Function Documentation

◆ New()

◆ IsTypeOf()

◆ IsA()

◆ SafeDownCast()

◆ NewInstanceInternal()

◆ NewInstance()

◆ PrintSelf()

◆ GetCellType()

◆ GetCellDimension()

◆ GetNumberOfEdges()

◆ GetNumberOfFaces()

◆ GetEdge()

◆ GetFace()

◆ CellBoundary()

◆ Contour()

◆ Clip()

◆ EvaluatePosition()

◆ EvaluateLocation()

◆ IntersectWithLine()

◆ Triangulate()

◆ Derivatives()