extracts points whose scalar value satisfies threshold criterion More...

#include <vtkThresholdPoints.h>

Inheritance diagram for vtkThresholdPoints:

Collaboration diagram for vtkThresholdPoints:

Public Types
typedef vtkPolyDataAlgorithm	Superclass
Public Member Functions
virtual int	IsA (const char *type)
vtkThresholdPoints *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent)
void	ThresholdByLower (double lower)
void	ThresholdByUpper (double upper)
void	ThresholdBetween (double lower, double upper)

virtual void	SetUpperThreshold (double)
virtual double	GetUpperThreshold ()

virtual void	SetLowerThreshold (double)
virtual double	GetLowerThreshold ()
Static Public Member Functions
static vtkThresholdPoints *	New ()
static int	IsTypeOf (const char *type)
static vtkThresholdPoints *	SafeDownCast (vtkObjectBase *o)
Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkThresholdPoints ()
	~vtkThresholdPoints ()
virtual int	RequestData (vtkInformation , vtkInformationVector , vtkInformationVector )
virtual int	FillInputPortInformation (int port, vtkInformation *info)
int	Lower (double s)
int	Upper (double s)
int	Between (double s)
Protected Attributes
double	LowerThreshold
double	UpperThreshold
int(vtkThresholdPoints::*	ThresholdFunction )(double s)

Detailed Description

extracts points whose scalar value satisfies threshold criterion

vtkThresholdPoints is a filter that extracts points from a dataset that satisfy a threshold criterion. The criterion can take three forms: 1) greater than a particular value; 2) less than a particular value; or 3) between a particular value. The output of the filter is polygonal data.

See also:: vtkThreshold

Examples:: vtkThresholdPoints (Examples)

Tests:: vtkThresholdPoints (Tests)

Definition at line 38 of file vtkThresholdPoints.h.

Member Typedef Documentation

typedef vtkPolyDataAlgorithm vtkThresholdPoints::Superclass

Reimplemented from vtkPolyDataAlgorithm.

Definition at line 42 of file vtkThresholdPoints.h.

Constructor & Destructor Documentation

vtkThresholdPoints::vtkThresholdPoints ( ) [protected]

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

Definition at line 71 of file vtkThresholdPoints.h.

Member Function Documentation

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

Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

Reimplemented from vtkPolyDataAlgorithm.

static int vtkThresholdPoints::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.

virtual int vtkThresholdPoints::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.

static vtkThresholdPoints* vtkThresholdPoints::SafeDownCast ( vtkObjectBase * o ) [static]

Reimplemented from vtkPolyDataAlgorithm.

virtual vtkObjectBase* vtkThresholdPoints::NewInstanceInternal ( ) const [protected, virtual]

Reimplemented from vtkPolyDataAlgorithm.

vtkThresholdPoints* vtkThresholdPoints::NewInstance ( ) const

Reimplemented from vtkPolyDataAlgorithm.

void vtkThresholdPoints::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.

void vtkThresholdPoints::ThresholdByLower ( double lower )

Criterion is cells whose scalars are less or equal to lower threshold.

void vtkThresholdPoints::ThresholdByUpper ( double upper )

Criterion is cells whose scalars are greater or equal to upper threshold.

void vtkThresholdPoints::ThresholdBetween	(	double	lower,
		double	upper
	)

Criterion is cells whose scalars are between lower and upper thresholds (inclusive of the end values).

virtual void vtkThresholdPoints::SetUpperThreshold ( double ) [virtual]

Set/Get the upper threshold.

virtual double vtkThresholdPoints::GetUpperThreshold ( ) [virtual]

Set/Get the upper threshold.

virtual void vtkThresholdPoints::SetLowerThreshold ( double ) [virtual]

Set/Get the lower threshold.

virtual double vtkThresholdPoints::GetLowerThreshold ( ) [virtual]

Set/Get the lower threshold.

virtual int vtkThresholdPoints::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 vtkThresholdPoints::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.

int vtkThresholdPoints::Lower ( double s ) [inline, protected]