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vtkPolyDataConnectivityFilter Class Reference

extract polygonal data based on geometric connectivity More...

#include <vtkPolyDataConnectivityFilter.h>

Inherits vtkPolyDataAlgorithm.

Public Types

typedef vtkPolyDataAlgorithm Superclass
 

Public Member Functions

virtual int IsA (const char *type)
 
vtkPolyDataConnectivityFilterNewInstance () const
 
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 vtkIdTypeArray * GetRegionSizes ()
 
virtual void SetScalarConnectivity (int)
 
virtual int GetScalarConnectivity ()
 
virtual void ScalarConnectivityOn ()
 
virtual void ScalarConnectivityOff ()
 
virtual void SetFullScalarConnectivity (int)
 
virtual int GetFullScalarConnectivity ()
 
virtual void FullScalarConnectivityOn ()
 
virtual void FullScalarConnectivityOff ()
 
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 ()
 
virtual void SetMarkVisitedPointIds (int)
 
virtual int GetMarkVisitedPointIds ()
 
virtual void MarkVisitedPointIdsOn ()
 
virtual void MarkVisitedPointIdsOff ()
 
virtual vtkIdList * GetVisitedPointIds ()
 

Static Public Member Functions

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

Protected Member Functions

virtual vtkObjectBase * NewInstanceInternal () const
 
 vtkPolyDataConnectivityFilter ()
 
 ~vtkPolyDataConnectivityFilter ()
 
int RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
 
int IsScalarConnected (vtkIdType cellId)
 
void TraverseAndMark ()
 

Protected Attributes

int ColorRegions
 
int ExtractionMode
 
vtkIdList * Seeds
 
vtkIdList * SpecifiedRegionIds
 
vtkIdTypeArray * RegionSizes
 
double ClosestPoint [3]
 
int ScalarConnectivity
 
int FullScalarConnectivity
 
double ScalarRange [2]
 
vtkDataArray * CellScalars
 
vtkIdList * NeighborCellPointIds
 
vtkIdType * Visited
 
vtkIdType * PointMap
 
vtkDataArray * NewScalars
 
vtkIdType RegionNumber
 
vtkIdType PointNumber
 
vtkIdType NumCellsInRegion
 
vtkDataArray * InScalars
 
vtkPolyData * Mesh
 
vtkIdList * Wave
 
vtkIdList * Wave2
 
vtkIdList * PointIds
 
vtkIdList * CellIds
 
vtkIdList * VisitedPointIds
 
int MarkVisitedPointIds
 

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 the cell's points falls in the scalar range specified. If ScalarConnectivity and FullScalarConnectivity is ON, all the cell's points must lie in the scalar range specified for the cell to qualify as being connected. If FullScalarConnectivity is OFF, any one of the cell's points may lie in the user specified scalar range for the cell to qualify as being connected.

This use of ScalarConnectivity is particularly useful for selecting cells for later processing.

See Also
vtkConnectivityFilter
Tests:
vtkPolyDataConnectivityFilter (Tests)

Definition at line 69 of file vtkPolyDataConnectivityFilter.h.

Member Typedef Documentation

typedef vtkPolyDataAlgorithm vtkPolyDataConnectivityFilter::Superclass

Definition at line 72 of file vtkPolyDataConnectivityFilter.h.

Constructor & Destructor Documentation

vtkPolyDataConnectivityFilter::vtkPolyDataConnectivityFilter ( )
protected
vtkPolyDataConnectivityFilter::~vtkPolyDataConnectivityFilter ( )
protected

Member Function Documentation

static int vtkPolyDataConnectivityFilter::IsTypeOf ( const char *  type)
static
virtual int vtkPolyDataConnectivityFilter::IsA ( const char *  type)
virtual
static vtkPolyDataConnectivityFilter* vtkPolyDataConnectivityFilter::SafeDownCast ( vtkObjectBase *  o)
static
virtual vtkObjectBase* vtkPolyDataConnectivityFilter::NewInstanceInternal ( ) const
protectedvirtual
vtkPolyDataConnectivityFilter* vtkPolyDataConnectivityFilter::NewInstance ( ) const
void vtkPolyDataConnectivityFilter::PrintSelf ( ostream &  os,
vtkIndent  indent 
)
virtual vtkIdTypeArray* vtkPolyDataConnectivityFilter::GetRegionSizes ( )
virtual

Obtain the array containing the region sizes of the extracted regions

static vtkPolyDataConnectivityFilter* vtkPolyDataConnectivityFilter::New ( )
static

Construct with default extraction mode to extract largest regions.

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::SetFullScalarConnectivity ( int  )
virtual

Turn on/off the use of Fully connected scalar connectivity. This is off by default. The flag is used only if ScalarConnectivity is on. If FullScalarConnectivity is ON, all the cell's points must lie in the scalar range specified for the cell to qualify as being connected. If FullScalarConnectivity is OFF, any one of the cell's points may lie in the user specified scalar range for the cell to qualify as being connected.

virtual int vtkPolyDataConnectivityFilter::GetFullScalarConnectivity ( )
virtual

Turn on/off the use of Fully connected scalar connectivity. This is off by default. The flag is used only if ScalarConnectivity is on. If FullScalarConnectivity is ON, all the cell's points must lie in the scalar range specified for the cell to qualify as being connected. If FullScalarConnectivity is OFF, any one of the cell's points may lie in the user specified scalar range for the cell to qualify as being connected.

virtual void vtkPolyDataConnectivityFilter::FullScalarConnectivityOn ( )
virtual

Turn on/off the use of Fully connected scalar connectivity. This is off by default. The flag is used only if ScalarConnectivity is on. If FullScalarConnectivity is ON, all the cell's points must lie in the scalar range specified for the cell to qualify as being connected. If FullScalarConnectivity is OFF, any one of the cell's points may lie in the user specified scalar range for the cell to qualify as being connected.

virtual void vtkPolyDataConnectivityFilter::FullScalarConnectivityOff ( )
virtual

Turn on/off the use of Fully connected scalar connectivity. This is off by default. The flag is used only if ScalarConnectivity is on. If FullScalarConnectivity is ON, all the cell's points must lie in the scalar range specified for the cell to qualify as being connected. If FullScalarConnectivity is OFF, any one of the cell's points may lie in the user specified scalar range for the cell to qualify as being connected.

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 118 of file vtkPolyDataConnectivityFilter.h.

void vtkPolyDataConnectivityFilter::SetExtractionModeToCellSeededRegions ( )
inline

Control the extraction of connected surfaces.

Definition at line 120 of file vtkPolyDataConnectivityFilter.h.

void vtkPolyDataConnectivityFilter::SetExtractionModeToLargestRegion ( )
inline

Control the extraction of connected surfaces.

Definition at line 122 of file vtkPolyDataConnectivityFilter.h.

void vtkPolyDataConnectivityFilter::SetExtractionModeToSpecifiedRegions ( )
inline

Control the extraction of connected surfaces.

Definition at line 124 of file vtkPolyDataConnectivityFilter.h.

void vtkPolyDataConnectivityFilter::SetExtractionModeToClosestPointRegion ( )
inline

Control the extraction of connected surfaces.

Definition at line 126 of file vtkPolyDataConnectivityFilter.h.

void vtkPolyDataConnectivityFilter::SetExtractionModeToAllRegions ( )
inline

Control the extraction of connected surfaces.

Definition at line 128 of file vtkPolyDataConnectivityFilter.h.

const char * vtkPolyDataConnectivityFilter::GetExtractionModeAsString ( void  )
inline

Return the method of extraction as a string.

Definition at line 233 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.

virtual void vtkPolyDataConnectivityFilter::SetMarkVisitedPointIds ( int  )
virtual

Mark visited point ids ? It may be useful to extract the visited point ids for use by a downstream filter. Default is OFF.

virtual int vtkPolyDataConnectivityFilter::GetMarkVisitedPointIds ( )
virtual

Mark visited point ids ? It may be useful to extract the visited point ids for use by a downstream filter. Default is OFF.

virtual void vtkPolyDataConnectivityFilter::MarkVisitedPointIdsOn ( )
virtual

Mark visited point ids ? It may be useful to extract the visited point ids for use by a downstream filter. Default is OFF.

virtual void vtkPolyDataConnectivityFilter::MarkVisitedPointIdsOff ( )
virtual

Mark visited point ids ? It may be useful to extract the visited point ids for use by a downstream filter. Default is OFF.

virtual vtkIdList* vtkPolyDataConnectivityFilter::GetVisitedPointIds ( )
virtual

Get the visited point ids. This is valid only if MarkVisitedPointIds has been set.

int vtkPolyDataConnectivityFilter::RequestData ( vtkInformation *  ,
vtkInformationVector **  ,
vtkInformationVector *   
)
protected
int vtkPolyDataConnectivityFilter::IsScalarConnected ( vtkIdType  cellId)
protected
void vtkPolyDataConnectivityFilter::TraverseAndMark ( )
protected

Member Data Documentation

int vtkPolyDataConnectivityFilter::ColorRegions
protected

Definition at line 189 of file vtkPolyDataConnectivityFilter.h.

int vtkPolyDataConnectivityFilter::ExtractionMode
protected

Definition at line 190 of file vtkPolyDataConnectivityFilter.h.

vtkIdList* vtkPolyDataConnectivityFilter::Seeds
protected

Definition at line 191 of file vtkPolyDataConnectivityFilter.h.

vtkIdList* vtkPolyDataConnectivityFilter::SpecifiedRegionIds
protected

Definition at line 192 of file vtkPolyDataConnectivityFilter.h.

vtkIdTypeArray* vtkPolyDataConnectivityFilter::RegionSizes
protected

Definition at line 193 of file vtkPolyDataConnectivityFilter.h.

double vtkPolyDataConnectivityFilter::ClosestPoint[3]
protected

Definition at line 195 of file vtkPolyDataConnectivityFilter.h.

int vtkPolyDataConnectivityFilter::ScalarConnectivity
protected

Definition at line 197 of file vtkPolyDataConnectivityFilter.h.

int vtkPolyDataConnectivityFilter::FullScalarConnectivity
protected

Definition at line 198 of file vtkPolyDataConnectivityFilter.h.

double vtkPolyDataConnectivityFilter::ScalarRange[2]
protected

Definition at line 203 of file vtkPolyDataConnectivityFilter.h.

vtkDataArray* vtkPolyDataConnectivityFilter::CellScalars
protected

Definition at line 208 of file vtkPolyDataConnectivityFilter.h.

vtkIdList* vtkPolyDataConnectivityFilter::NeighborCellPointIds
protected

Definition at line 209 of file vtkPolyDataConnectivityFilter.h.

vtkIdType* vtkPolyDataConnectivityFilter::Visited
protected

Definition at line 210 of file vtkPolyDataConnectivityFilter.h.

vtkIdType* vtkPolyDataConnectivityFilter::PointMap
protected

Definition at line 211 of file vtkPolyDataConnectivityFilter.h.

vtkDataArray* vtkPolyDataConnectivityFilter::NewScalars
protected

Definition at line 212 of file vtkPolyDataConnectivityFilter.h.

vtkIdType vtkPolyDataConnectivityFilter::RegionNumber
protected

Definition at line 213 of file vtkPolyDataConnectivityFilter.h.

vtkIdType vtkPolyDataConnectivityFilter::PointNumber
protected

Definition at line 214 of file vtkPolyDataConnectivityFilter.h.

vtkIdType vtkPolyDataConnectivityFilter::NumCellsInRegion
protected

Definition at line 215 of file vtkPolyDataConnectivityFilter.h.

vtkDataArray* vtkPolyDataConnectivityFilter::InScalars
protected

Definition at line 216 of file vtkPolyDataConnectivityFilter.h.

vtkPolyData* vtkPolyDataConnectivityFilter::Mesh
protected

Definition at line 217 of file vtkPolyDataConnectivityFilter.h.

vtkIdList* vtkPolyDataConnectivityFilter::Wave
protected

Definition at line 218 of file vtkPolyDataConnectivityFilter.h.

vtkIdList* vtkPolyDataConnectivityFilter::Wave2
protected

Definition at line 219 of file vtkPolyDataConnectivityFilter.h.

vtkIdList* vtkPolyDataConnectivityFilter::PointIds
protected

Definition at line 220 of file vtkPolyDataConnectivityFilter.h.

vtkIdList* vtkPolyDataConnectivityFilter::CellIds
protected

Definition at line 221 of file vtkPolyDataConnectivityFilter.h.

vtkIdList* vtkPolyDataConnectivityFilter::VisitedPointIds
protected

Definition at line 222 of file vtkPolyDataConnectivityFilter.h.

int vtkPolyDataConnectivityFilter::MarkVisitedPointIds
protected

Definition at line 224 of file vtkPolyDataConnectivityFilter.h.


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