vtkAreaContourSpectrumFilter Class Reference

#include <vtkAreaContourSpectrumFilter.h>

Inheritance diagram for vtkAreaContourSpectrumFilter:

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Collaboration diagram for vtkAreaContourSpectrumFilter:

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List of all members.

Detailed Description

compute an approximation of the area contour signature (evolution of the area of the input surface along an arc of the Reeb graph).

The filter takes a vtkPolyData as an input (port 0), along with a vtkReebGraph (port 1). The Reeb graph arc to consider can be specified with SetArcId() (default: 0). The number of (evenly distributed) samples of the signature can be defined with SetNumberOfSamples() (default value: 100). The filter will first try to pull as a scalar field the vtkDataArray with Id 'FieldId' of the vtkPolyData, see SetFieldId (default: 0). The filter will abort if this field does not exist.

The filter outputs a vtkTable with the area contour signature approximation, each sample being evenly distributed in the function span of the arc.

This filter is a typical example for designing your own contour signature filter (with customized metrics). It also shows typical vtkReebGraph traversals.

Reference: C. Bajaj, V. Pascucci, D. Schikore, "The contour spectrum", IEEE Visualization, 167-174, 1997.

Tests:: vtkAreaContourSpectrumFilter (Tests)

Definition at line 53 of file vtkAreaContourSpectrumFilter.h.


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

virtual void	SetArcId (vtkIdType)
virtual vtkIdType	GetArcId ()

virtual void	SetNumberOfSamples (int)
virtual int	GetNumberOfSamples ()

virtual void	SetFieldId (vtkIdType)
virtual vtkIdType	GetFieldId ()
Static Public Member Functions
static vtkAreaContourSpectrumFilter *	New ()
static int	IsTypeOf (const char *type)
static vtkAreaContourSpectrumFilter *	SafeDownCast (vtkObject *o)
Protected Member Functions
	vtkAreaContourSpectrumFilter ()
	~vtkAreaContourSpectrumFilter ()
int	FillInputPortInformation (int portNumber, vtkInformation *)
int	FillOutputPortInformation (int portNumber, vtkInformation *info)
int	RequestData (vtkInformation request, vtkInformationVector inputVector, vtkInformationVector outputVector)
Protected Attributes
vtkIdType	ArcId
vtkIdType	FieldId
int	NumberOfSamples

Member Typedef Documentation

typedef vtkDataObjectAlgorithm vtkAreaContourSpectrumFilter::Superclass

Reimplemented from vtkDataObjectAlgorithm.

Definition at line 58 of file vtkAreaContourSpectrumFilter.h.

Constructor & Destructor Documentation

vtkAreaContourSpectrumFilter::vtkAreaContourSpectrumFilter ( ) [protected]

vtkAreaContourSpectrumFilter::~vtkAreaContourSpectrumFilter ( ) [protected]

Member Function Documentation

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

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

Reimplemented from vtkDataObjectAlgorithm.

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

Reimplemented from vtkDataObjectAlgorithm.

static int vtkAreaContourSpectrumFilter::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 vtkDataObjectAlgorithm.

virtual int vtkAreaContourSpectrumFilter::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 vtkDataObjectAlgorithm.

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

Reimplemented from vtkDataObjectAlgorithm.

void vtkAreaContourSpectrumFilter::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 vtkDataObjectAlgorithm.

virtual void vtkAreaContourSpectrumFilter::SetArcId ( vtkIdType ) [virtual]

Set the arc Id for which the contour signature has to be computed. Default value: 0

virtual vtkIdType vtkAreaContourSpectrumFilter::GetArcId ( ) [virtual]

Set the arc Id for which the contour signature has to be computed. Default value: 0

virtual void vtkAreaContourSpectrumFilter::SetNumberOfSamples ( int ) [virtual]

Set the number of samples in the output signature Default value: 100

virtual int vtkAreaContourSpectrumFilter::GetNumberOfSamples ( ) [virtual]

Set the number of samples in the output signature Default value: 100

virtual void vtkAreaContourSpectrumFilter::SetFieldId ( vtkIdType ) [virtual]

Set the scalar field Id Default value: 0

virtual vtkIdType vtkAreaContourSpectrumFilter::GetFieldId ( ) [virtual]

Set the scalar field Id Default value: 0

vtkTable* vtkAreaContourSpectrumFilter::GetOutput ( )

Get the output data object for a port on this algorithm.

Reimplemented from vtkDataObjectAlgorithm.

int vtkAreaContourSpectrumFilter::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 vtkDataObjectAlgorithm.

int vtkAreaContourSpectrumFilter::FillOutputPortInformation	(	int	port,
		vtkInformation *	info
	)			`[protected, virtual]`

Fill the output port information objects for this algorithm. This is invoked by the first call to GetOutputPortInformation for each port so subclasses can specify what they can handle.

Reimplemented from vtkDataObjectAlgorithm.

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