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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:

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Collaboration diagram for vtkCellLinks:

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List of all members.

Public Methods

virtual const char * GetClassName ()
virtual int IsA (const char *type)
void Allocate (int numLinks, int ext=1000)
_vtkLink_s & GetLink (int ptId)
unsigned short GetNcells (int ptId)
void BuildLinks (vtkDataSet *data)
void BuildLinks (vtkDataSet *data, vtkCellArray *Connectivity)
int * GetCells (int ptId)
int InsertNextPoint (int numLinks)
void InsertNextCellReference (int ptId, int cellId)
void DeletePoint (int ptId)
void RemoveCellReference (int cellId, int ptId)
void AddCellReference (int cellId, int ptId)
void ResizeCellList (int 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 ()
 vtkCellLinks (const vtkCellLinks &)
void operator= (const vtkCellLinks &)
void IncrementLinkCount (int ptId)
void AllocateLinks (int n)
void InsertCellReference (int ptId, unsigned short pos, int cellId)
_vtkLink_s * Resize (int sz)

Protected Attributes

_vtkLink_s * Array
int Size
int MaxId
int Extend

Detailed Description

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

Date:
2000/12/10 20:08:07
Revision:
1.18

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


Member Function Documentation

void vtkCellLinks::AddCellReference int    cellId,
int    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).

void vtkCellLinks::Allocate int    numLinks,
int    ext = 1000
 

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

void vtkCellLinks::BuildLinks vtkDataSet   data,
vtkCellArray   Connectivity
 

Build the link list array.

void vtkCellLinks::BuildLinks vtkDataSet   data
 

Build the link list array.

void vtkCellLinks::DeepCopy vtkCellLinks *    src
 

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

void vtkCellLinks::DeletePoint int    ptId [inline]
 

Delete point (and storage) by destroying links to using cells.

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.

int* vtkCellLinks::GetCells int    ptId [inline]
 

Return a list of cell ids using the point.

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.

_vtkLink_s& vtkCellLinks::GetLink int    ptId [inline]
 

Get a link structure given a point id.

unsigned short vtkCellLinks::GetNcells int    ptId [inline]
 

Get the number of cells using the point specified by ptId.

void vtkCellLinks::IncrementLinkCount int    ptId [inline, protected]
 

Increment the count of the number of cells using the point.

void vtkCellLinks::InsertCellReference int    ptId,
unsigned short    pos,
int    cellId
[inline, protected]
 

Insert a cell id into the list of cells using the point.

void vtkCellLinks::InsertNextCellReference int    ptId,
int    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().)

int vtkCellLinks::InsertNextPoint int    numLinks
 

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

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.

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.

vtkCellLinks* vtkCellLinks::New   [static]
 

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

Reimplemented from vtkObject.

void vtkCellLinks::RemoveCellReference int    cellId,
int    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).

void vtkCellLinks::Reset  
 

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

void vtkCellLinks::ResizeCellList int    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.

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::Squeeze  
 

Reclaim any unused memory.


The documentation for this class was generated from the following file:
Generated on Tue Mar 19 13:24:01 2002 for VTK by doxygen1.2.14 written by Dimitri van Heesch, © 1997-2002