vtkPolyDataConnectivityFilter Class Reference

#include <vtkPolyDataConnectivityFilter.h>

Inheritance diagram for vtkPolyDataConnectivityFilter:

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Collaboration diagram for vtkPolyDataConnectivityFilter:

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List of all members.


Detailed Description

extract polygonal data based on geometric connectivity

vtkPolyDataConnectivityFilter is a filter that extracts cells that share common points and/or satisfy a scalar threshold criterion. (Such a group of cells is called a region.) The filter works in one of six ways: 1) extract the largest (most points) connected region in the dataset; 2) extract specified region numbers; 3) extract all regions sharing specified point ids; 4) extract all regions sharing specified cell ids; 5) extract the region closest to the specified point; or 6) extract all regions (used to color regions).

This filter is specialized for polygonal data. This means it runs a bit faster and is easier to construct visualization networks that process polygonal data.

The behavior of vtkPolyDataConnectivityFilter can be modified by turning on the boolean ivar ScalarConnectivity. If this flag is on, the connectivity algorithm is modified so that cells are considered connected only if 1) they are geometrically connected (share a point) and 2) the scalar values of one of the cell's points falls in the scalar range specified. This use of ScalarConnectivity is particularly useful for selecting cells for later processing.

See also:
vtkConnectivityFilter
Tests:
vtkPolyDataConnectivityFilter (Tests)

Definition at line 62 of file vtkPolyDataConnectivityFilter.h.


Public Types

typedef vtkPolyDataAlgorithm Superclass

Public Member Functions

virtual const char * GetClassName ()
virtual int IsA (const char *type)
void PrintSelf (ostream &os, vtkIndent indent)
void InitializeSeedList ()
void AddSeed (int id)
void DeleteSeed (int id)
void InitializeSpecifiedRegionList ()
void AddSpecifiedRegion (int id)
void DeleteSpecifiedRegion (int id)
int GetNumberOfExtractedRegions ()
virtual void SetScalarConnectivity (int)
virtual int GetScalarConnectivity ()
virtual void ScalarConnectivityOn ()
virtual void ScalarConnectivityOff ()
virtual void SetScalarRange (double, double)
void SetScalarRange (double[2])
virtual double * GetScalarRange ()
virtual void GetScalarRange (double &, double &)
virtual void GetScalarRange (double[2])
virtual void SetExtractionMode (int)
virtual int GetExtractionMode ()
void SetExtractionModeToPointSeededRegions ()
void SetExtractionModeToCellSeededRegions ()
void SetExtractionModeToLargestRegion ()
void SetExtractionModeToSpecifiedRegions ()
void SetExtractionModeToClosestPointRegion ()
void SetExtractionModeToAllRegions ()
const char * GetExtractionModeAsString ()
virtual void SetClosestPoint (double, double, double)
virtual void SetClosestPoint (double[3])
virtual double * GetClosestPoint ()
virtual void GetClosestPoint (double data[3])
virtual void SetColorRegions (int)
virtual int GetColorRegions ()
virtual void ColorRegionsOn ()
virtual void ColorRegionsOff ()

Static Public Member Functions

static int IsTypeOf (const char *type)
static
vtkPolyDataConnectivityFilter
SafeDownCast (vtkObject *o)
static
vtkPolyDataConnectivityFilter
New ()

Protected Member Functions

 vtkPolyDataConnectivityFilter ()
 ~vtkPolyDataConnectivityFilter ()
int RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
void TraverseAndMark ()

Protected Attributes

int ColorRegions
int ExtractionMode
vtkIdListSeeds
vtkIdListSpecifiedRegionIds
vtkIdTypeArrayRegionSizes
double ClosestPoint [3]
int ScalarConnectivity
double ScalarRange [2]
vtkDataArrayCellScalars
vtkIdListNeighborCellPointIds
vtkIdTypeVisited
vtkIdTypePointMap
vtkDataArrayNewScalars
vtkIdType RegionNumber
vtkIdType PointNumber
vtkIdType NumCellsInRegion
vtkDataArrayInScalars
vtkPolyDataMesh
vtkIdListWave
vtkIdListWave2
vtkIdListPointIds
vtkIdListCellIds

Member Typedef Documentation

Reimplemented from vtkPolyDataAlgorithm.

Definition at line 65 of file vtkPolyDataConnectivityFilter.h.


Constructor & Destructor Documentation

vtkPolyDataConnectivityFilter::vtkPolyDataConnectivityFilter (  )  [protected]

vtkPolyDataConnectivityFilter::~vtkPolyDataConnectivityFilter (  )  [protected]


Member Function Documentation

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

Reimplemented from vtkPolyDataAlgorithm.

static int vtkPolyDataConnectivityFilter::IsTypeOf ( const char *  name  )  [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 vtkPolyDataAlgorithm.

virtual int vtkPolyDataConnectivityFilter::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 vtkPolyDataAlgorithm.

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

Reimplemented from vtkPolyDataAlgorithm.

void vtkPolyDataConnectivityFilter::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 vtkPolyDataAlgorithm.

static vtkPolyDataConnectivityFilter* vtkPolyDataConnectivityFilter::New (  )  [static]

Construct with default extraction mode to extract largest regions.

Reimplemented from vtkPolyDataAlgorithm.

virtual void vtkPolyDataConnectivityFilter::SetScalarConnectivity ( int   )  [virtual]

Turn on/off connectivity based on scalar value. If on, cells are connected only if they share points AND one of the cells scalar values falls in the scalar range specified.

virtual int vtkPolyDataConnectivityFilter::GetScalarConnectivity (  )  [virtual]

Turn on/off connectivity based on scalar value. If on, cells are connected only if they share points AND one of the cells scalar values falls in the scalar range specified.

virtual void vtkPolyDataConnectivityFilter::ScalarConnectivityOn (  )  [virtual]

Turn on/off connectivity based on scalar value. If on, cells are connected only if they share points AND one of the cells scalar values falls in the scalar range specified.

virtual void vtkPolyDataConnectivityFilter::ScalarConnectivityOff (  )  [virtual]

Turn on/off connectivity based on scalar value. If on, cells are connected only if they share points AND one of the cells scalar values falls in the scalar range specified.

virtual void vtkPolyDataConnectivityFilter::SetScalarRange ( double  ,
double   
) [virtual]

Set the scalar range to use to extract cells based on scalar connectivity.

void vtkPolyDataConnectivityFilter::SetScalarRange ( double  [2]  ) 

Set the scalar range to use to extract cells based on scalar connectivity.

virtual double* vtkPolyDataConnectivityFilter::GetScalarRange (  )  [virtual]

Set the scalar range to use to extract cells based on scalar connectivity.

virtual void vtkPolyDataConnectivityFilter::GetScalarRange ( double &  ,
double &   
) [virtual]

Set the scalar range to use to extract cells based on scalar connectivity.

virtual void vtkPolyDataConnectivityFilter::GetScalarRange ( double  [2]  )  [virtual]

Set the scalar range to use to extract cells based on scalar connectivity.

virtual void vtkPolyDataConnectivityFilter::SetExtractionMode ( int   )  [virtual]

Control the extraction of connected surfaces.

virtual int vtkPolyDataConnectivityFilter::GetExtractionMode (  )  [virtual]

Control the extraction of connected surfaces.

void vtkPolyDataConnectivityFilter::SetExtractionModeToPointSeededRegions (  )  [inline]

Control the extraction of connected surfaces.

Definition at line 93 of file vtkPolyDataConnectivityFilter.h.

void vtkPolyDataConnectivityFilter::SetExtractionModeToCellSeededRegions (  )  [inline]

Control the extraction of connected surfaces.

Definition at line 95 of file vtkPolyDataConnectivityFilter.h.

void vtkPolyDataConnectivityFilter::SetExtractionModeToLargestRegion (  )  [inline]

Control the extraction of connected surfaces.

Definition at line 97 of file vtkPolyDataConnectivityFilter.h.

void vtkPolyDataConnectivityFilter::SetExtractionModeToSpecifiedRegions (  )  [inline]

Control the extraction of connected surfaces.

Definition at line 99 of file vtkPolyDataConnectivityFilter.h.

void vtkPolyDataConnectivityFilter::SetExtractionModeToClosestPointRegion (  )  [inline]

Control the extraction of connected surfaces.

Definition at line 101 of file vtkPolyDataConnectivityFilter.h.

void vtkPolyDataConnectivityFilter::SetExtractionModeToAllRegions (  )  [inline]

Control the extraction of connected surfaces.

Definition at line 103 of file vtkPolyDataConnectivityFilter.h.

const char * vtkPolyDataConnectivityFilter::GetExtractionModeAsString ( void   )  [inline]

Return the method of extraction as a string.

Definition at line 185 of file vtkPolyDataConnectivityFilter.h.

void vtkPolyDataConnectivityFilter::InitializeSeedList (  ) 

Initialize list of point ids/cell ids used to seed regions.

void vtkPolyDataConnectivityFilter::AddSeed ( int  id  ) 

Add a seed id (point or cell id). Note: ids are 0-offset.

void vtkPolyDataConnectivityFilter::DeleteSeed ( int  id  ) 

Delete a seed id (point or cell id). Note: ids are 0-offset.

void vtkPolyDataConnectivityFilter::InitializeSpecifiedRegionList (  ) 

Initialize list of region ids to extract.

void vtkPolyDataConnectivityFilter::AddSpecifiedRegion ( int  id  ) 

Add a region id to extract. Note: ids are 0-offset.

void vtkPolyDataConnectivityFilter::DeleteSpecifiedRegion ( int  id  ) 

Delete a region id to extract. Note: ids are 0-offset.

virtual void vtkPolyDataConnectivityFilter::SetClosestPoint ( double  ,
double  ,
double   
) [virtual]

Use to specify x-y-z point coordinates when extracting the region closest to a specified point.

virtual void vtkPolyDataConnectivityFilter::SetClosestPoint ( double  [3]  )  [virtual]

Use to specify x-y-z point coordinates when extracting the region closest to a specified point.

virtual double* vtkPolyDataConnectivityFilter::GetClosestPoint (  )  [virtual]

Use to specify x-y-z point coordinates when extracting the region closest to a specified point.

virtual void vtkPolyDataConnectivityFilter::GetClosestPoint ( double  data[3]  )  [virtual]

Use to specify x-y-z point coordinates when extracting the region closest to a specified point.

int vtkPolyDataConnectivityFilter::GetNumberOfExtractedRegions (  ) 

Obtain the number of connected regions.

virtual void vtkPolyDataConnectivityFilter::SetColorRegions ( int   )  [virtual]

Turn on/off the coloring of connected regions.

virtual int vtkPolyDataConnectivityFilter::GetColorRegions (  )  [virtual]

Turn on/off the coloring of connected regions.

virtual void vtkPolyDataConnectivityFilter::ColorRegionsOn (  )  [virtual]

Turn on/off the coloring of connected regions.

virtual void vtkPolyDataConnectivityFilter::ColorRegionsOff (  )  [virtual]

Turn on/off the coloring of connected regions.

int vtkPolyDataConnectivityFilter::RequestData ( vtkInformation request,
vtkInformationVector **  inputVector,
vtkInformationVector outputVector 
) [protected, virtual]

This is called by the superclass. This is the method you should override.

Reimplemented from vtkPolyDataAlgorithm.

void vtkPolyDataConnectivityFilter::TraverseAndMark (  )  [protected]


Member Data Documentation

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

Generated on Wed Aug 24 11:56:48 2011 for VTK by  doxygen 1.5.6