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vtkGeometryFilter Class Reference

extract geometry from data (or convert data to polygonal type) More...

#include <vtkGeometryFilter.h>

Inherits vtkPolyDataAlgorithm.

Public Types

typedef vtkPolyDataAlgorithm Superclass
 

Public Member Functions

virtual int IsA (const char *type)
 
vtkGeometryFilterNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 
void CreateDefaultLocator ()
 
unsigned long GetMTime ()
 
virtual void SetPointClipping (int)
 
virtual int GetPointClipping ()
 
virtual void PointClippingOn ()
 
virtual void PointClippingOff ()
 
virtual void SetCellClipping (int)
 
virtual int GetCellClipping ()
 
virtual void CellClippingOn ()
 
virtual void CellClippingOff ()
 
virtual void SetExtentClipping (int)
 
virtual int GetExtentClipping ()
 
virtual void ExtentClippingOn ()
 
virtual void ExtentClippingOff ()
 
virtual void SetPointMinimum (vtkIdType)
 
virtual vtkIdType GetPointMinimum ()
 
virtual void SetPointMaximum (vtkIdType)
 
virtual vtkIdType GetPointMaximum ()
 
virtual void SetCellMinimum (vtkIdType)
 
virtual vtkIdType GetCellMinimum ()
 
virtual void SetCellMaximum (vtkIdType)
 
virtual vtkIdType GetCellMaximum ()
 
void SetExtent (double xMin, double xMax, double yMin, double yMax, double zMin, double zMax)
 
void SetExtent (double extent[6])
 
double * GetExtent ()
 
virtual void SetMerging (int)
 
virtual int GetMerging ()
 
virtual void MergingOn ()
 
virtual void MergingOff ()
 
void SetLocator (vtkIncrementalPointLocator *locator)
 
virtual
vtkIncrementalPointLocator * 
GetLocator ()
 

Static Public Member Functions

static vtkGeometryFilterNew ()
 
static int IsTypeOf (const char *type)
 
static vtkGeometryFilterSafeDownCast (vtkObjectBase *o)
 

Protected Member Functions

virtual vtkObjectBase * NewInstanceInternal () const
 
 vtkGeometryFilter ()
 
 ~vtkGeometryFilter ()
 
virtual int RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
 
virtual int FillInputPortInformation (int port, vtkInformation *info)
 
void PolyDataExecute (vtkDataSet *, vtkPolyData *, vtkInformation *)
 
void UnstructuredGridExecute (vtkDataSet *, vtkPolyData *, vtkInformation *)
 
void StructuredGridExecute (vtkDataSet *, vtkPolyData *, vtkInformation *)
 
int RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
 

Protected Attributes

vtkIdType PointMaximum
 
vtkIdType PointMinimum
 
vtkIdType CellMinimum
 
vtkIdType CellMaximum
 
double Extent [6]
 
int PointClipping
 
int CellClipping
 
int ExtentClipping
 
int Merging
 
vtkIncrementalPointLocator * Locator
 

Detailed Description

extract geometry from data (or convert data to polygonal type)

vtkGeometryFilter is a general-purpose filter to extract geometry (and associated data) from any type of dataset. Geometry is obtained as follows: all 0D, 1D, and 2D cells are extracted. All 2D faces that are used by only one 3D cell (i.e., boundary faces) are extracted. It also is possible to specify conditions on point ids, cell ids, and on bounding box (referred to as "Extent") to control the extraction process.

This filter also may be used to convert any type of data to polygonal type. The conversion process may be less than satisfactory for some 3D datasets. For example, this filter will extract the outer surface of a volume or structured grid dataset. (For structured data you may want to use vtkImageDataGeometryFilter, vtkStructuredGridGeometryFilter, vtkExtractUnstructuredGrid, vtkRectilinearGridGeometryFilter, or vtkExtractVOI.)

Warning
When vtkGeometryFilter extracts cells (or boundaries of cells) it will (by default) merge duplicate vertices. This may cause problems in some cases. For example, if you've run vtkPolyDataNormals to generate normals, which may split meshes and create duplicate vertices, vtkGeometryFilter will merge these points back together. Turn merging off to prevent this from occurring.
This filter assumes that the input dataset is composed of either: 0D cells OR 1D cells OR 2D and/or 3D cells. In other words, the input dataset cannot be a combination of different dimensional cells with the exception of 2D and 3D cells.
See Also
vtkImageDataGeometryFilter vtkStructuredGridGeometryFilter vtkExtractGeometry vtkExtractVOI
Examples:
vtkGeometryFilter (Examples)
Tests:
vtkGeometryFilter (Tests)

Definition at line 66 of file vtkGeometryFilter.h.

Member Typedef Documentation

typedef vtkPolyDataAlgorithm vtkGeometryFilter::Superclass

Definition at line 70 of file vtkGeometryFilter.h.

Constructor & Destructor Documentation

vtkGeometryFilter::vtkGeometryFilter ( )
protected
vtkGeometryFilter::~vtkGeometryFilter ( )
protected

Member Function Documentation

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

Turn on/off selection of geometry by point id.

virtual int vtkGeometryFilter::GetPointClipping ( )
virtual

Turn on/off selection of geometry by point id.

virtual void vtkGeometryFilter::PointClippingOn ( )
virtual

Turn on/off selection of geometry by point id.

virtual void vtkGeometryFilter::PointClippingOff ( )
virtual

Turn on/off selection of geometry by point id.

virtual void vtkGeometryFilter::SetCellClipping ( int  )
virtual

Turn on/off selection of geometry by cell id.

virtual int vtkGeometryFilter::GetCellClipping ( )
virtual

Turn on/off selection of geometry by cell id.

virtual void vtkGeometryFilter::CellClippingOn ( )
virtual

Turn on/off selection of geometry by cell id.

virtual void vtkGeometryFilter::CellClippingOff ( )
virtual

Turn on/off selection of geometry by cell id.

virtual void vtkGeometryFilter::SetExtentClipping ( int  )
virtual

Turn on/off selection of geometry via bounding box.

virtual int vtkGeometryFilter::GetExtentClipping ( )
virtual

Turn on/off selection of geometry via bounding box.

virtual void vtkGeometryFilter::ExtentClippingOn ( )
virtual

Turn on/off selection of geometry via bounding box.

virtual void vtkGeometryFilter::ExtentClippingOff ( )
virtual

Turn on/off selection of geometry via bounding box.

virtual void vtkGeometryFilter::SetPointMinimum ( vtkIdType  )
virtual

Specify the minimum point id for point id selection.

virtual vtkIdType vtkGeometryFilter::GetPointMinimum ( )
virtual

Specify the minimum point id for point id selection.

virtual void vtkGeometryFilter::SetPointMaximum ( vtkIdType  )
virtual

Specify the maximum point id for point id selection.

virtual vtkIdType vtkGeometryFilter::GetPointMaximum ( )
virtual

Specify the maximum point id for point id selection.

virtual void vtkGeometryFilter::SetCellMinimum ( vtkIdType  )
virtual

Specify the minimum cell id for point id selection.

virtual vtkIdType vtkGeometryFilter::GetCellMinimum ( )
virtual

Specify the minimum cell id for point id selection.

virtual void vtkGeometryFilter::SetCellMaximum ( vtkIdType  )
virtual

Specify the maximum cell id for point id selection.

virtual vtkIdType vtkGeometryFilter::GetCellMaximum ( )
virtual

Specify the maximum cell id for point id selection.

void vtkGeometryFilter::SetExtent ( double  xMin,
double  xMax,
double  yMin,
double  yMax,
double  zMin,
double  zMax 
)

Specify a (xmin,xmax, ymin,ymax, zmin,zmax) bounding box to clip data.

void vtkGeometryFilter::SetExtent ( double  extent[6])

Set / get a (xmin,xmax, ymin,ymax, zmin,zmax) bounding box to clip data.

double* vtkGeometryFilter::GetExtent ( )
inline

Set / get a (xmin,xmax, ymin,ymax, zmin,zmax) bounding box to clip data.

Definition at line 129 of file vtkGeometryFilter.h.

virtual void vtkGeometryFilter::SetMerging ( int  )
virtual

Turn on/off merging of coincident points. Note that is merging is on, points with different point attributes (e.g., normals) are merged, which may cause rendering artifacts.

virtual int vtkGeometryFilter::GetMerging ( )
virtual

Turn on/off merging of coincident points. Note that is merging is on, points with different point attributes (e.g., normals) are merged, which may cause rendering artifacts.

virtual void vtkGeometryFilter::MergingOn ( )
virtual

Turn on/off merging of coincident points. Note that is merging is on, points with different point attributes (e.g., normals) are merged, which may cause rendering artifacts.

virtual void vtkGeometryFilter::MergingOff ( )
virtual

Turn on/off merging of coincident points. Note that is merging is on, points with different point attributes (e.g., normals) are merged, which may cause rendering artifacts.

void vtkGeometryFilter::SetLocator ( vtkIncrementalPointLocator *  locator)

Set / get a spatial locator for merging points. By default an instance of vtkMergePoints is used.

virtual vtkIncrementalPointLocator* vtkGeometryFilter::GetLocator ( )
virtual

Set / get a spatial locator for merging points. By default an instance of vtkMergePoints is used.

void vtkGeometryFilter::CreateDefaultLocator ( )

Create default locator. Used to create one when none is specified.

unsigned long vtkGeometryFilter::GetMTime ( )

Return the MTime also considering the locator.

virtual int vtkGeometryFilter::RequestData ( vtkInformation *  ,
vtkInformationVector **  ,
vtkInformationVector *   
)
protectedvirtual
virtual int vtkGeometryFilter::FillInputPortInformation ( int  port,
vtkInformation *  info 
)
protectedvirtual
void vtkGeometryFilter::PolyDataExecute ( vtkDataSet *  ,
vtkPolyData *  ,
vtkInformation *   
)
protected
void vtkGeometryFilter::UnstructuredGridExecute ( vtkDataSet *  ,
vtkPolyData *  ,
vtkInformation *   
)
protected
void vtkGeometryFilter::StructuredGridExecute ( vtkDataSet *  ,
vtkPolyData *  ,
vtkInformation *   
)
protected
int vtkGeometryFilter::RequestUpdateExtent ( vtkInformation *  ,
vtkInformationVector **  ,
vtkInformationVector *   
)
protected

Member Data Documentation

vtkIdType vtkGeometryFilter::PointMaximum
protected

Definition at line 167 of file vtkGeometryFilter.h.

vtkIdType vtkGeometryFilter::PointMinimum
protected

Definition at line 168 of file vtkGeometryFilter.h.

vtkIdType vtkGeometryFilter::CellMinimum
protected

Definition at line 169 of file vtkGeometryFilter.h.

vtkIdType vtkGeometryFilter::CellMaximum
protected

Definition at line 170 of file vtkGeometryFilter.h.

double vtkGeometryFilter::Extent[6]
protected

Definition at line 171 of file vtkGeometryFilter.h.

int vtkGeometryFilter::PointClipping
protected

Definition at line 172 of file vtkGeometryFilter.h.

int vtkGeometryFilter::CellClipping
protected

Definition at line 173 of file vtkGeometryFilter.h.

int vtkGeometryFilter::ExtentClipping
protected

Definition at line 174 of file vtkGeometryFilter.h.

int vtkGeometryFilter::Merging
protected

Definition at line 176 of file vtkGeometryFilter.h.

vtkIncrementalPointLocator* vtkGeometryFilter::Locator
protected

Definition at line 177 of file vtkGeometryFilter.h.


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