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vtkUnstructuredGridGeometryFilter Class Reference

extract geometry from an unstructured grid More...

#include <vtkUnstructuredGridGeometryFilter.h>

Inherits vtkUnstructuredGridAlgorithm.

Public Types

typedef
vtkUnstructuredGridAlgorithm 
Superclass
 

Public Member Functions

virtual int IsA (const char *type)
 
vtkUnstructuredGridGeometryFilterNewInstance () 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 ()
 
virtual void SetPassThroughCellIds (int)
 
virtual int GetPassThroughCellIds ()
 
virtual void PassThroughCellIdsOn ()
 
virtual void PassThroughCellIdsOff ()
 
virtual void SetPassThroughPointIds (int)
 
virtual int GetPassThroughPointIds ()
 
virtual void PassThroughPointIdsOn ()
 
virtual void PassThroughPointIdsOff ()
 
virtual void SetOriginalCellIdsName (const char *)
 
virtual const char * GetOriginalCellIdsName ()
 
virtual void SetOriginalPointIdsName (const char *)
 
virtual const char * GetOriginalPointIdsName ()
 
void SetLocator (vtkIncrementalPointLocator *locator)
 
virtual
vtkIncrementalPointLocator * 
GetLocator ()
 

Static Public Member Functions

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

Protected Member Functions

virtual vtkObjectBase * NewInstanceInternal () const
 
 vtkUnstructuredGridGeometryFilter ()
 
 ~vtkUnstructuredGridGeometryFilter ()
 
virtual int RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
 
virtual int FillInputPortInformation (int port, vtkInformation *info)
 
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 PassThroughCellIds
 
int PassThroughPointIds
 
char * OriginalCellIdsName
 
char * OriginalPointIdsName
 
int Merging
 
vtkIncrementalPointLocator * Locator
 
vtkHashTableOfSurfels * HashTable
 

Detailed Description

extract geometry from an unstructured grid

vtkUnstructuredGridGeometryFilter is a filter that extracts geometry (and associated data) from an unstructured grid. It differs from vtkGeometryFilter by not tessellating higher order faces: 2D faces of quadratic 3D cells will be quadratic. A quadratic edge is extracted as a quadratic edge. For that purpose, the output of this filter is an unstructured grid, not a polydata. Also, the face of a voxel is a pixel, not a quad. 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.

Warning
When vtkUnstructuredGridGeometryFilter extracts cells (or boundaries of cells) it will (by default) merge duplicate vertices. This may cause problems in some cases. Turn merging off to prevent this from occurring.
See Also
vtkGeometryFilter
Tests:
vtkUnstructuredGridGeometryFilter (Tests)

Definition at line 52 of file vtkUnstructuredGridGeometryFilter.h.

Member Typedef Documentation

typedef vtkUnstructuredGridAlgorithm vtkUnstructuredGridGeometryFilter::Superclass

Definition at line 56 of file vtkUnstructuredGridGeometryFilter.h.

Constructor & Destructor Documentation

vtkUnstructuredGridGeometryFilter::vtkUnstructuredGridGeometryFilter ( )
protected
vtkUnstructuredGridGeometryFilter::~vtkUnstructuredGridGeometryFilter ( )
protected

Member Function Documentation

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

Turn on/off selection of geometry by point id.

virtual int vtkUnstructuredGridGeometryFilter::GetPointClipping ( )
virtual

Turn on/off selection of geometry by point id.

virtual void vtkUnstructuredGridGeometryFilter::PointClippingOn ( )
virtual

Turn on/off selection of geometry by point id.

virtual void vtkUnstructuredGridGeometryFilter::PointClippingOff ( )
virtual

Turn on/off selection of geometry by point id.

virtual void vtkUnstructuredGridGeometryFilter::SetCellClipping ( int  )
virtual

Turn on/off selection of geometry by cell id.

virtual int vtkUnstructuredGridGeometryFilter::GetCellClipping ( )
virtual

Turn on/off selection of geometry by cell id.

virtual void vtkUnstructuredGridGeometryFilter::CellClippingOn ( )
virtual

Turn on/off selection of geometry by cell id.

virtual void vtkUnstructuredGridGeometryFilter::CellClippingOff ( )
virtual

Turn on/off selection of geometry by cell id.

virtual void vtkUnstructuredGridGeometryFilter::SetExtentClipping ( int  )
virtual

Turn on/off selection of geometry via bounding box.

virtual int vtkUnstructuredGridGeometryFilter::GetExtentClipping ( )
virtual

Turn on/off selection of geometry via bounding box.

virtual void vtkUnstructuredGridGeometryFilter::ExtentClippingOn ( )
virtual

Turn on/off selection of geometry via bounding box.

virtual void vtkUnstructuredGridGeometryFilter::ExtentClippingOff ( )
virtual

Turn on/off selection of geometry via bounding box.

virtual void vtkUnstructuredGridGeometryFilter::SetPointMinimum ( vtkIdType  )
virtual

Specify the minimum point id for point id selection.

virtual vtkIdType vtkUnstructuredGridGeometryFilter::GetPointMinimum ( )
virtual

Specify the minimum point id for point id selection.

virtual void vtkUnstructuredGridGeometryFilter::SetPointMaximum ( vtkIdType  )
virtual

Specify the maximum point id for point id selection.

virtual vtkIdType vtkUnstructuredGridGeometryFilter::GetPointMaximum ( )
virtual

Specify the maximum point id for point id selection.

virtual void vtkUnstructuredGridGeometryFilter::SetCellMinimum ( vtkIdType  )
virtual

Specify the minimum cell id for point id selection.

virtual vtkIdType vtkUnstructuredGridGeometryFilter::GetCellMinimum ( )
virtual

Specify the minimum cell id for point id selection.

virtual void vtkUnstructuredGridGeometryFilter::SetCellMaximum ( vtkIdType  )
virtual

Specify the maximum cell id for point id selection.

virtual vtkIdType vtkUnstructuredGridGeometryFilter::GetCellMaximum ( )
virtual

Specify the maximum cell id for point id selection.

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

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

double* vtkUnstructuredGridGeometryFilter::GetExtent ( )
inline

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

Definition at line 115 of file vtkUnstructuredGridGeometryFilter.h.

virtual void vtkUnstructuredGridGeometryFilter::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 vtkUnstructuredGridGeometryFilter::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 vtkUnstructuredGridGeometryFilter::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 vtkUnstructuredGridGeometryFilter::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.

virtual void vtkUnstructuredGridGeometryFilter::SetPassThroughCellIds ( int  )
virtual

If on, the output polygonal dataset will have a celldata array that holds the cell index of the original 3D cell that produced each output cell. This is useful for cell picking. The default is off to conserve memory. Note that PassThroughCellIds will be ignored if UseStrips is on, since in that case each tringle strip can represent more than on of the input cells.

virtual int vtkUnstructuredGridGeometryFilter::GetPassThroughCellIds ( )
virtual

If on, the output polygonal dataset will have a celldata array that holds the cell index of the original 3D cell that produced each output cell. This is useful for cell picking. The default is off to conserve memory. Note that PassThroughCellIds will be ignored if UseStrips is on, since in that case each tringle strip can represent more than on of the input cells.

virtual void vtkUnstructuredGridGeometryFilter::PassThroughCellIdsOn ( )
virtual

If on, the output polygonal dataset will have a celldata array that holds the cell index of the original 3D cell that produced each output cell. This is useful for cell picking. The default is off to conserve memory. Note that PassThroughCellIds will be ignored if UseStrips is on, since in that case each tringle strip can represent more than on of the input cells.

virtual void vtkUnstructuredGridGeometryFilter::PassThroughCellIdsOff ( )
virtual

If on, the output polygonal dataset will have a celldata array that holds the cell index of the original 3D cell that produced each output cell. This is useful for cell picking. The default is off to conserve memory. Note that PassThroughCellIds will be ignored if UseStrips is on, since in that case each tringle strip can represent more than on of the input cells.

virtual void vtkUnstructuredGridGeometryFilter::SetPassThroughPointIds ( int  )
virtual

If on, the output polygonal dataset will have a celldata array that holds the cell index of the original 3D cell that produced each output cell. This is useful for cell picking. The default is off to conserve memory. Note that PassThroughCellIds will be ignored if UseStrips is on, since in that case each tringle strip can represent more than on of the input cells.

virtual int vtkUnstructuredGridGeometryFilter::GetPassThroughPointIds ( )
virtual

If on, the output polygonal dataset will have a celldata array that holds the cell index of the original 3D cell that produced each output cell. This is useful for cell picking. The default is off to conserve memory. Note that PassThroughCellIds will be ignored if UseStrips is on, since in that case each tringle strip can represent more than on of the input cells.

virtual void vtkUnstructuredGridGeometryFilter::PassThroughPointIdsOn ( )
virtual

If on, the output polygonal dataset will have a celldata array that holds the cell index of the original 3D cell that produced each output cell. This is useful for cell picking. The default is off to conserve memory. Note that PassThroughCellIds will be ignored if UseStrips is on, since in that case each tringle strip can represent more than on of the input cells.

virtual void vtkUnstructuredGridGeometryFilter::PassThroughPointIdsOff ( )
virtual

If on, the output polygonal dataset will have a celldata array that holds the cell index of the original 3D cell that produced each output cell. This is useful for cell picking. The default is off to conserve memory. Note that PassThroughCellIds will be ignored if UseStrips is on, since in that case each tringle strip can represent more than on of the input cells.

virtual void vtkUnstructuredGridGeometryFilter::SetOriginalCellIdsName ( const char *  )
virtual

If PassThroughCellIds or PassThroughPointIds is on, then these ivars control the name given to the field in which the ids are written into. If set to NULL, then vtkOriginalCellIds or vtkOriginalPointIds (the default) is used, respectively.

virtual const char* vtkUnstructuredGridGeometryFilter::GetOriginalCellIdsName ( )
inlinevirtual

If PassThroughCellIds or PassThroughPointIds is on, then these ivars control the name given to the field in which the ids are written into. If set to NULL, then vtkOriginalCellIds or vtkOriginalPointIds (the default) is used, respectively.

Definition at line 148 of file vtkUnstructuredGridGeometryFilter.h.

virtual void vtkUnstructuredGridGeometryFilter::SetOriginalPointIdsName ( const char *  )
virtual

If PassThroughCellIds or PassThroughPointIds is on, then these ivars control the name given to the field in which the ids are written into. If set to NULL, then vtkOriginalCellIds or vtkOriginalPointIds (the default) is used, respectively.

virtual const char* vtkUnstructuredGridGeometryFilter::GetOriginalPointIdsName ( )
inlinevirtual

If PassThroughCellIds or PassThroughPointIds is on, then these ivars control the name given to the field in which the ids are written into. If set to NULL, then vtkOriginalCellIds or vtkOriginalPointIds (the default) is used, respectively.

Definition at line 153 of file vtkUnstructuredGridGeometryFilter.h.

void vtkUnstructuredGridGeometryFilter::SetLocator ( vtkIncrementalPointLocator *  locator)

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

virtual vtkIncrementalPointLocator* vtkUnstructuredGridGeometryFilter::GetLocator ( )
virtual

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

void vtkUnstructuredGridGeometryFilter::CreateDefaultLocator ( )

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

unsigned long vtkUnstructuredGridGeometryFilter::GetMTime ( )

Return the MTime also considering the locator.

virtual int vtkUnstructuredGridGeometryFilter::RequestData ( vtkInformation *  ,
vtkInformationVector **  ,
vtkInformationVector *   
)
protectedvirtual
virtual int vtkUnstructuredGridGeometryFilter::FillInputPortInformation ( int  port,
vtkInformation *  info 
)
protectedvirtual
int vtkUnstructuredGridGeometryFilter::RequestUpdateExtent ( vtkInformation *  ,
vtkInformationVector **  ,
vtkInformationVector *   
)
protected

Member Data Documentation

vtkIdType vtkUnstructuredGridGeometryFilter::PointMaximum
protected

Definition at line 181 of file vtkUnstructuredGridGeometryFilter.h.

vtkIdType vtkUnstructuredGridGeometryFilter::PointMinimum
protected

Definition at line 182 of file vtkUnstructuredGridGeometryFilter.h.

vtkIdType vtkUnstructuredGridGeometryFilter::CellMinimum
protected

Definition at line 183 of file vtkUnstructuredGridGeometryFilter.h.

vtkIdType vtkUnstructuredGridGeometryFilter::CellMaximum
protected

Definition at line 184 of file vtkUnstructuredGridGeometryFilter.h.

double vtkUnstructuredGridGeometryFilter::Extent[6]
protected

Definition at line 185 of file vtkUnstructuredGridGeometryFilter.h.

int vtkUnstructuredGridGeometryFilter::PointClipping
protected

Definition at line 186 of file vtkUnstructuredGridGeometryFilter.h.

int vtkUnstructuredGridGeometryFilter::CellClipping
protected

Definition at line 187 of file vtkUnstructuredGridGeometryFilter.h.

int vtkUnstructuredGridGeometryFilter::ExtentClipping
protected

Definition at line 188 of file vtkUnstructuredGridGeometryFilter.h.

int vtkUnstructuredGridGeometryFilter::PassThroughCellIds
protected

Definition at line 190 of file vtkUnstructuredGridGeometryFilter.h.

int vtkUnstructuredGridGeometryFilter::PassThroughPointIds
protected

Definition at line 191 of file vtkUnstructuredGridGeometryFilter.h.

char* vtkUnstructuredGridGeometryFilter::OriginalCellIdsName
protected

Definition at line 192 of file vtkUnstructuredGridGeometryFilter.h.

char* vtkUnstructuredGridGeometryFilter::OriginalPointIdsName
protected

Definition at line 193 of file vtkUnstructuredGridGeometryFilter.h.

int vtkUnstructuredGridGeometryFilter::Merging
protected

Definition at line 195 of file vtkUnstructuredGridGeometryFilter.h.

vtkIncrementalPointLocator* vtkUnstructuredGridGeometryFilter::Locator
protected

Definition at line 196 of file vtkUnstructuredGridGeometryFilter.h.

vtkHashTableOfSurfels* vtkUnstructuredGridGeometryFilter::HashTable
protected

Definition at line 198 of file vtkUnstructuredGridGeometryFilter.h.


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