vtkImageDataGeometryFilter Class Reference

#include <vtkImageDataGeometryFilter.h>

Inheritance diagram for vtkImageDataGeometryFilter:

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Collaboration diagram for vtkImageDataGeometryFilter:

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List of all members.

Detailed Description

extract geometry for structured points

vtkImageDataGeometryFilter is a filter that extracts geometry from a structured points dataset. By specifying appropriate i-j-k indices (via the "Extent" instance variable), it is possible to extract a point, a line, a plane (i.e., image), or a "volume" from dataset. (Since the output is of type polydata, the volume is actually a (n x m x o) region of points.)

The extent specification is zero-offset. That is, the first k-plane in a 50x50x50 volume is given by (0,49, 0,49, 0,0).

Warning:: If you don't know the dimensions of the input dataset, you can use a large number to specify extent (the number will be clamped appropriately). For example, if the dataset dimensions are 50x50x50, and you want a the fifth k-plane, you can use the extents (0,100, 0,100, 4,4). The 100 will automatically be clamped to 49.

See also:: vtkGeometryFilter vtkStructuredGridSource

Examples:: vtkImageDataGeometryFilter (Examples)

Tests:: vtkImageDataGeometryFilter (Tests)

Definition at line 48 of file vtkImageDataGeometryFilter.h.


Public Types
typedef vtkPolyDataAlgorithm	Superclass
Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)

void	SetExtent (int extent[6])
void	SetExtent (int iMin, int iMax, int jMin, int jMax, int kMin, int kMax)
int *	GetExtent ()

virtual void	SetThresholdCells (int)
virtual int	GetThresholdCells ()
virtual void	ThresholdCellsOn ()
virtual void	ThresholdCellsOff ()

virtual void	SetThresholdValue (double)
virtual double	GetThresholdValue ()
virtual void	ThresholdValueOn ()
virtual void	ThresholdValueOff ()

virtual void	SetOutputTriangles (int)
virtual int	GetOutputTriangles ()
virtual void	OutputTrianglesOn ()
virtual void	OutputTrianglesOff ()
Static Public Member Functions
static int	IsTypeOf (const char *type)
static vtkImageDataGeometryFilter *	SafeDownCast (vtkObject *o)
static vtkImageDataGeometryFilter *	New ()
Protected Member Functions
	vtkImageDataGeometryFilter ()
	~vtkImageDataGeometryFilter ()
virtual int	RequestData (vtkInformation , vtkInformationVector , vtkInformationVector )
virtual int	FillInputPortInformation (int port, vtkInformation *info)
Protected Attributes
int	Extent [6]
int	ThresholdCells
double	ThresholdValue
int	OutputTriangles

Member Typedef Documentation

typedef vtkPolyDataAlgorithm vtkImageDataGeometryFilter::Superclass

Reimplemented from vtkPolyDataAlgorithm.

Reimplemented in vtkStructuredPointsGeometryFilter.

Definition at line 51 of file vtkImageDataGeometryFilter.h.

Constructor & Destructor Documentation

vtkImageDataGeometryFilter::vtkImageDataGeometryFilter ( ) [protected]

vtkImageDataGeometryFilter::~vtkImageDataGeometryFilter ( ) [inline, protected]

Definition at line 93 of file vtkImageDataGeometryFilter.h.

Member Function Documentation

virtual const char* vtkImageDataGeometryFilter::GetClassName ( ) [virtual]

Reimplemented from vtkPolyDataAlgorithm.

Reimplemented in vtkStructuredPointsGeometryFilter.

static int vtkImageDataGeometryFilter::IsTypeOf ( const char * name ) [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 vtkPolyDataAlgorithm.

Reimplemented in vtkStructuredPointsGeometryFilter.

virtual int vtkImageDataGeometryFilter::IsA ( const char * name ) [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 vtkPolyDataAlgorithm.

Reimplemented in vtkStructuredPointsGeometryFilter.

static vtkImageDataGeometryFilter* vtkImageDataGeometryFilter::SafeDownCast ( vtkObject * o ) [static]

Reimplemented from vtkPolyDataAlgorithm.

Reimplemented in vtkStructuredPointsGeometryFilter.

void vtkImageDataGeometryFilter::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.

static vtkImageDataGeometryFilter* vtkImageDataGeometryFilter::New ( ) [static]

Construct with initial extent of all the data

Reimplemented from vtkPolyDataAlgorithm.

Reimplemented in vtkStructuredPointsGeometryFilter.

void vtkImageDataGeometryFilter::SetExtent ( int extent[6] )

Set / get the extent (imin,imax, jmin,jmax, kmin,kmax) indices.

void vtkImageDataGeometryFilter::SetExtent	(	int	iMin,
		int	iMax,
		int	jMin,
		int	jMax,
		int	kMin,
		int	kMax
	)

Set / get the extent (imin,imax, jmin,jmax, kmin,kmax) indices.

int* vtkImageDataGeometryFilter::GetExtent ( ) [inline]

Set / get the extent (imin,imax, jmin,jmax, kmin,kmax) indices.

Definition at line 61 of file vtkImageDataGeometryFilter.h.

virtual void vtkImageDataGeometryFilter::SetThresholdCells ( int ) [virtual]

Set ThresholdCells to true if you wish to skip any voxel/pixels which have scalar values less than the specified threshold. Currently this functionality is only implemented for 2D imagedata

virtual int vtkImageDataGeometryFilter::GetThresholdCells ( ) [virtual]

Set ThresholdCells to true if you wish to skip any voxel/pixels which have scalar values less than the specified threshold. Currently this functionality is only implemented for 2D imagedata

virtual void vtkImageDataGeometryFilter::ThresholdCellsOn ( ) [virtual]

Set ThresholdCells to true if you wish to skip any voxel/pixels which have scalar values less than the specified threshold. Currently this functionality is only implemented for 2D imagedata

virtual void vtkImageDataGeometryFilter::ThresholdCellsOff ( ) [virtual]

Set ThresholdCells to true if you wish to skip any voxel/pixels which have scalar values less than the specified threshold. Currently this functionality is only implemented for 2D imagedata

virtual void vtkImageDataGeometryFilter::SetThresholdValue ( double ) [virtual]

Set ThresholdValue to the scalar value by which to threshhold cells when extracting geometry when ThresholdCells is true. Cells with scalar values greater than the threshold will be output.

virtual double vtkImageDataGeometryFilter::GetThresholdValue ( ) [virtual]

Set ThresholdValue to the scalar value by which to threshhold cells when extracting geometry when ThresholdCells is true. Cells with scalar values greater than the threshold will be output.

virtual void vtkImageDataGeometryFilter::ThresholdValueOn ( ) [virtual]

Set ThresholdValue to the scalar value by which to threshhold cells when extracting geometry when ThresholdCells is true. Cells with scalar values greater than the threshold will be output.

virtual void vtkImageDataGeometryFilter::ThresholdValueOff ( ) [virtual]

Set ThresholdValue to the scalar value by which to threshhold cells when extracting geometry when ThresholdCells is true. Cells with scalar values greater than the threshold will be output.

virtual void vtkImageDataGeometryFilter::SetOutputTriangles ( int ) [virtual]

Set OutputTriangles to true if you wish to generate triangles instead of quads when extracting cells from 2D imagedata Currently this functionality is only implemented for 2D imagedata

virtual int vtkImageDataGeometryFilter::GetOutputTriangles ( ) [virtual]

Set OutputTriangles to true if you wish to generate triangles instead of quads when extracting cells from 2D imagedata Currently this functionality is only implemented for 2D imagedata

virtual void vtkImageDataGeometryFilter::OutputTrianglesOn ( ) [virtual]

Set OutputTriangles to true if you wish to generate triangles instead of quads when extracting cells from 2D imagedata Currently this functionality is only implemented for 2D imagedata

virtual void vtkImageDataGeometryFilter::OutputTrianglesOff ( ) [virtual]

Set OutputTriangles to true if you wish to generate triangles instead of quads when extracting cells from 2D imagedata Currently this functionality is only implemented for 2D imagedata

virtual int vtkImageDataGeometryFilter::RequestData	(	vtkInformation *	request,
		vtkInformationVector **	inputVector,
		vtkInformationVector *	outputVector
	)			`[protected, virtual]`

This is called by the superclass. This is the method you should override.

Reimplemented from vtkPolyDataAlgorithm.

virtual int vtkImageDataGeometryFilter::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.