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vtkCellLinks Class Reference

object represents upward pointers from points to list of cells using each point. More...

#include <vtkCellLinks.h>

Inheritance diagram for vtkCellLinks:

[legend]Collaboration diagram for vtkCellLinks:

[legend]List of all members.

Public Methods
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	Allocate (vtkIdType numLinks, vtkIdType ext=1000)
_vtkLink_s &	GetLink (vtkIdType ptId)
unsigned short	GetNcells (vtkIdType ptId)
void	BuildLinks (vtkDataSet *data)
void	BuildLinks (vtkDataSet *data, vtkCellArray *Connectivity)
vtkIdType *	GetCells (vtkIdType ptId)
vtkIdType	InsertNextPoint (int numLinks)
void	InsertNextCellReference (vtkIdType ptId, vtkIdType cellId)
void	DeletePoint (vtkIdType ptId)
void	RemoveCellReference (vtkIdType cellId, vtkIdType ptId)
void	AddCellReference (vtkIdType cellId, vtkIdType ptId)
void	ResizeCellList (vtkIdType ptId, int size)
void	Squeeze ()
void	Reset ()
unsigned long	GetActualMemorySize ()
void	DeepCopy (vtkCellLinks *src)
Static Public Methods
vtkCellLinks *	New ()
int	IsTypeOf (const char *type)
vtkCellLinks *	SafeDownCast (vtkObject *o)
Protected Methods
	vtkCellLinks ()
	~vtkCellLinks ()
void	IncrementLinkCount (vtkIdType ptId)
void	AllocateLinks (vtkIdType n)
_vtkLink_s *	Resize (vtkIdType sz)
void	InsertCellReference (vtkIdType ptId, unsigned short pos, vtkIdType cellId)
Protected Attributes
_vtkLink_s *	Array
vtkIdType	Size
vtkIdType	MaxId
vtkIdType	Extend

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Detailed Description

object represents upward pointers from points to list of cells using each point.

Date:

2001/11/13 14:09:24

Revision:

1.25

vtkCellLinks is a supplemental object to vtkCellArray and vtkCellTypes, enabling access from points to the cells using the points. vtkCellLinks is a list of Links, each link represents a dynamic list of cell id's using the point. The information provided by this object can be used to determine neighbors and construct other local topological information.

See also:

vtkCellArray vtkCellTypes

Definition at line 67 of file vtkCellLinks.h.

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Constructor & Destructor Documentation

vtkCellLinks::vtkCellLinks (    )  [inline, protected]

Definition at line 137 of file vtkCellLinks.h.

vtkCellLinks::~vtkCellLinks (    )  [protected]

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Member Function Documentation

vtkCellLinks* vtkCellLinks::New (    )  [static]

Create an object with Debug turned off, modified time initialized to zero, and reference counting on. Reimplemented from vtkObject.

virtual const char* vtkCellLinks::GetClassName (    )  [virtual]

Return the class name as a string. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkObject.

int vtkCellLinks::IsTypeOf (  const char *    type )  [static]

Return 1 if this class type 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 vtkObject.

virtual int vtkCellLinks::IsA (  const char *    type )  [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 vtkObject.

vtkCellLinks* vtkCellLinks::SafeDownCast (  vtkObject *    o )  [static]

Will cast the supplied object to vtkObject* is this is a safe operation (i.e., a safe downcast); otherwise NULL is returned. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkObject.

void vtkCellLinks::Allocate (  vtkIdType    numLinks, vtkIdType    ext = 1000 )

Allocate the specified number of links (i.e., number of points) that will be built.

_vtkLink_s& vtkCellLinks::GetLink (  vtkIdType    ptId )  [inline]

Get a link structure given a point id. Definition at line 78 of file vtkCellLinks.h.

unsigned short vtkCellLinks::GetNcells (  vtkIdType    ptId )  [inline]

Get the number of cells using the point specified by ptId. Definition at line 81 of file vtkCellLinks.h. Referenced by vtkPolyData::GetPointCells().

void vtkCellLinks::BuildLinks (  vtkDataSet *    data )

Build the link list array.

void vtkCellLinks::BuildLinks (  vtkDataSet *    data, vtkCellArray *    Connectivity )

Build the link list array.

vtkIdType* vtkCellLinks::GetCells (  vtkIdType    ptId )  [inline]

Return a list of cell ids using the point. Definition at line 90 of file vtkCellLinks.h. Referenced by vtkPolyData::GetPointCells().

vtkIdType vtkCellLinks::InsertNextPoint (  int    numLinks )

Insert a new point into the cell-links data structure. The size parameter is the initial size of the list.

void vtkCellLinks::InsertNextCellReference (  vtkIdType    ptId, vtkIdType    cellId )  [inline]

Insert a cell id into the list of cells (at the end) using the cell id provided. (Make sure to extend the link list (if necessary) using the method ResizeCellList().) Definition at line 176 of file vtkCellLinks.h.

void vtkCellLinks::DeletePoint (  vtkIdType    ptId )  [inline]

Delete point (and storage) by destroying links to using cells. Definition at line 169 of file vtkCellLinks.h. Referenced by vtkPolyData::DeletePoint().

void vtkCellLinks::RemoveCellReference (  vtkIdType    cellId, vtkIdType    ptId )  [inline]

Delete the reference to the cell (cellId) from the point (ptId). This removes the reference to the cellId from the cell list, but does not resize the list (recover memory with ResizeCellList(), if necessary). Definition at line 182 of file vtkCellLinks.h. Referenced by vtkPolyData::RemoveCellReference().

void vtkCellLinks::AddCellReference (  vtkIdType    cellId, vtkIdType    ptId )  [inline]

Add the reference to the cell (cellId) from the point (ptId). This adds a reference to the cellId from the cell list, but does not resize the list (extend memory with ResizeCellList(), if necessary). Definition at line 201 of file vtkCellLinks.h. Referenced by vtkPolyData::AddCellReference().

void vtkCellLinks::ResizeCellList (  vtkIdType    ptId, int    size )  [inline]

Change the length of a point's link list (i.e., list of cells using a point) by the size specified. Definition at line 206 of file vtkCellLinks.h. Referenced by vtkPolyData::ResizeCellList().

void vtkCellLinks::Squeeze (    )

Reclaim any unused memory.

void vtkCellLinks::Reset (    )

Reset to a state of no entries without freeing the memory.

unsigned long vtkCellLinks::GetActualMemorySize (    )

Return the memory in kilobytes consumed by this cell links array. Used to support streaming and reading/writing data. The value returned is guaranteed to be greater than or equal to the memory required to actually represent the data represented by this object. The information returned is valid only after the pipeline has been updated.

void vtkCellLinks::DeepCopy (  vtkCellLinks *    src )

Standard DeepCopy method. Since this object contains no reference to other objects, there is no ShallowCopy.

void vtkCellLinks::IncrementLinkCount (  vtkIdType    ptId )  [inline, protected]

Increment the count of the number of cells using the point. Definition at line 141 of file vtkCellLinks.h.

void vtkCellLinks::AllocateLinks (  vtkIdType    n )  [protected]

void vtkCellLinks::InsertCellReference (  vtkIdType    ptId, unsigned short    pos, vtkIdType    cellId )  [inline, protected]

Insert a cell id into the list of cells using the point. Definition at line 162 of file vtkCellLinks.h.

_vtkLink_s* vtkCellLinks::Resize (  vtkIdType    sz )  [protected]

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Member Data Documentation

_vtkLink_s* vtkCellLinks::Array [protected]

Definition at line 151 of file vtkCellLinks.h.

vtkIdType vtkCellLinks::Size [protected]

Definition at line 152 of file vtkCellLinks.h.

vtkIdType vtkCellLinks::MaxId [protected]

Definition at line 153 of file vtkCellLinks.h.

vtkIdType vtkCellLinks::Extend [protected]

Definition at line 154 of file vtkCellLinks.h.

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

• Common/vtkCellLinks.h

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