vtkGeometryFilter Class Reference
#include <vtkGeometryFilter.h>
Inheritance diagram for vtkGeometryFilter:
[legend]Collaboration diagram for vtkGeometryFilter:
[legend]List of all members.
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.
- See also:
- vtkImageDataGeometryFilter vtkStructuredGridGeometryFilter vtkExtractGeometry vtkExtractVOI
- Examples:
- vtkGeometryFilter (Examples)
- Tests:
- vtkGeometryFilter (Tests)
Definition at line 59 of file vtkGeometryFilter.h.
|
Public Types |
| typedef vtkPolyDataAlgorithm | Superclass |
Public Member Functions |
| virtual const char * | GetClassName () |
| virtual int | IsA (const char *type) |
| void | CreateDefaultLocator () |
| unsigned long | GetMTime () |
|
| void | PrintSelf (ostream &os, vtkIndent indent) |
| 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 (vtkPointLocator *locator) |
| virtual vtkPointLocator * | GetLocator () |
Static Public Member Functions |
| static vtkGeometryFilter * | New () |
| static int | IsTypeOf (const char *type) |
| static vtkGeometryFilter * | SafeDownCast (vtkObject *o) |
Protected Member Functions |
| | 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 |
| vtkPointLocator * | Locator |
Member Typedef Documentation
Constructor & Destructor Documentation
| vtkGeometryFilter::vtkGeometryFilter |
( |
|
) |
[protected] |
|
| vtkGeometryFilter::~vtkGeometryFilter |
( |
|
) |
[protected] |
|
Member Function Documentation
|
|
Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
Reimplemented from vtkPolyDataAlgorithm. |
| virtual const char* vtkGeometryFilter::GetClassName |
( |
|
) |
[virtual] |
|
| static 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 vtkTypeRevisionMacro found in vtkSetGet.h.
Reimplemented from vtkPolyDataAlgorithm. |
| 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 vtkTypeRevisionMacro found in vtkSetGet.h.
Reimplemented from vtkPolyDataAlgorithm. |
| 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 vtkPolyDataAlgorithm. |
| virtual void vtkGeometryFilter::SetPointClipping |
( |
int |
|
) |
[virtual] |
|
|
|
Turn on/off selection of geometry by point id. |
| virtual int vtkGeometryFilter::GetPointClipping |
( |
|
) |
[virtual] |
|
| virtual void vtkGeometryFilter::PointClippingOn |
( |
|
) |
[virtual] |
|
| virtual void vtkGeometryFilter::PointClippingOff |
( |
|
) |
[virtual] |
|
| 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 122 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. |
|
|
Set / get a spatial locator for merging points. By default an instance of vtkMergePoints is used. |
|
|
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 |
( |
|
) |
[virtual] |
|
|
|
Return the MTime also considering the locator.
Reimplemented from vtkObject. |
|
|
This is called by the superclass. This is the method you should override.
Reimplemented from vtkPolyDataAlgorithm. |
| virtual int vtkGeometryFilter::FillInputPortInformation |
( |
int |
port, |
|
|
vtkInformation * |
info |
|
) |
[protected, virtual] |
|
|
|
Fill the input port information objects for this algorithm. This is invoked by the first call to GetInputPortInformation for each port so subclasses can specify what they can handle.
Reimplemented from vtkPolyDataAlgorithm. |
|
|
This is called by the superclass. This is the method you should override.
Reimplemented from vtkPolyDataAlgorithm. |
Member Data Documentation
The documentation for this class was generated from the following file:
Generated on Mon Jan 21 23:46:24 2008 for VTK by
1.4.3-20050530