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vtkGeometryFilter Class Reference

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

#include <vtkGeometryFilter.h>

Inheritance diagram for vtkGeometryFilter:

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Collaboration diagram for vtkGeometryFilter:

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List of all members.

Public Methods

virtual const char * GetClassName ()
virtual int IsA (const char *type)
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 (float xMin, float xMax, float yMin, float yMax, float zMin, float zMax)
void SetExtent (float extent[6])
float * GetExtent ()
virtual void SetMerging (int)
virtual int GetMerging ()
virtual void MergingOn ()
virtual void MergingOff ()
void SetLocator (vtkPointLocator *locator)
virtual vtkPointLocatorGetLocator ()

Static Public Methods

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

Protected Methods

 vtkGeometryFilter ()
 ~vtkGeometryFilter ()
void Execute ()
void PolyDataExecute ()
void UnstructuredGridExecute ()
void StructuredGridExecute ()
void ComputeInputUpdateExtents (vtkDataObject *output)
void ExecuteInformation ()

Protected Attributes

vtkIdType PointMaximum
vtkIdType PointMinimum
vtkIdType CellMinimum
vtkIdType CellMaximum
float Extent [6]
int PointClipping
int CellClipping
int ExtentClipping
int Merging
vtkPointLocatorLocator

Detailed Description

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

Date:
2001/11/01 18:02:49
Revision:
1.52

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, vtkUnstructuredGridGeometryFilter, 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.
See also:
vtkImageDataGeometryFilter vtkStructuredGridGeometryFilter vtkExtractGeometry vtkExtractVOI
Examples:
vtkGeometryFilter (Examples)
Tests:
vtkGeometryFilter (Tests)

Definition at line 85 of file vtkGeometryFilter.h.


Constructor & Destructor Documentation

vtkGeometryFilter::vtkGeometryFilter   [protected]
 

vtkGeometryFilter::~vtkGeometryFilter   [protected]
 


Member Function Documentation

vtkGeometryFilter* vtkGeometryFilter::New   [static]
 

Instantiate object with no start, end, or progress methods.

Reimplemented from vtkPolyDataSource.

virtual const char* vtkGeometryFilter::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 vtkDataSetToPolyDataFilter.

int vtkGeometryFilter::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 vtkDataSetToPolyDataFilter.

virtual int vtkGeometryFilter::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 vtkDataSetToPolyDataFilter.

vtkGeometryFilter* vtkGeometryFilter::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 vtkDataSetToPolyDataFilter.

void vtkGeometryFilter::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 vtkSource.

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 float    xMin,
float    xMax,
float    yMin,
float    yMax,
float    zMin,
float    zMax
 

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

void vtkGeometryFilter::SetExtent float    extent[6]
 

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

float* vtkGeometryFilter::GetExtent   [inline]
 

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

Definition at line 148 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 vtkPointLocator   locator
 

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

virtual vtkPointLocator* vtkGeometryFilter::GetLocator   [virtual]
 

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

void vtkGeometryFilter::CreateDefaultLocator void   
 

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

unsigned long vtkGeometryFilter::GetMTime   [virtual]
 

Return the MTime also considering the locator.

Reimplemented from vtkObject.

void vtkGeometryFilter::Execute   [protected, virtual]
 

This method is the old style execute method

Reimplemented from vtkSource.

void vtkGeometryFilter::PolyDataExecute   [protected]
 

void vtkGeometryFilter::UnstructuredGridExecute   [protected]
 

void vtkGeometryFilter::StructuredGridExecute   [protected]
 

void vtkGeometryFilter::ComputeInputUpdateExtents vtkDataObject   output [protected, virtual]
 

Do not let images return more than requested.

Reimplemented from vtkDataSetToPolyDataFilter.

void vtkGeometryFilter::ExecuteInformation   [protected, virtual]
 

Reimplemented from vtkSource.


Member Data Documentation

vtkIdType vtkGeometryFilter::PointMaximum [protected]
 

Definition at line 184 of file vtkGeometryFilter.h.

vtkIdType vtkGeometryFilter::PointMinimum [protected]
 

Definition at line 185 of file vtkGeometryFilter.h.

vtkIdType vtkGeometryFilter::CellMinimum [protected]
 

Definition at line 186 of file vtkGeometryFilter.h.

vtkIdType vtkGeometryFilter::CellMaximum [protected]
 

Definition at line 187 of file vtkGeometryFilter.h.

float vtkGeometryFilter::Extent[6] [protected]
 

Definition at line 188 of file vtkGeometryFilter.h.

int vtkGeometryFilter::PointClipping [protected]
 

Definition at line 189 of file vtkGeometryFilter.h.

int vtkGeometryFilter::CellClipping [protected]
 

Definition at line 190 of file vtkGeometryFilter.h.

int vtkGeometryFilter::ExtentClipping [protected]
 

Definition at line 191 of file vtkGeometryFilter.h.

int vtkGeometryFilter::Merging [protected]
 

Definition at line 193 of file vtkGeometryFilter.h.

vtkPointLocator* vtkGeometryFilter::Locator [protected]
 

Definition at line 194 of file vtkGeometryFilter.h.


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