vtkDeformPointSet Class Reference

use a control polyhedron to deform an input vtkPointSet More...

#include <vtkDeformPointSet.h>

Inheritance diagram for vtkDeformPointSet:

Collaboration diagram for vtkDeformPointSet:

Public Member Functions
void	SetControlMeshConnection (vtkAlgorithmOutput *algOutput)
void	SetControlMeshData (vtkPolyData *controlMesh)
vtkPolyData *	GetControlMeshData ()
virtual void	SetInitializeWeights (int)
virtual int	GetInitializeWeights ()
virtual void	InitializeWeightsOn ()
virtual void	InitializeWeightsOff ()
Public Member Functions inherited from vtkPointSetAlgorithm
vtkPointSetAlgorithm *	NewInstance () const
vtkPolyData *	GetPolyDataOutput ()
vtkStructuredGrid *	GetStructuredGridOutput ()
vtkUnstructuredGrid *	GetUnstructuredGridOutput ()
vtkDataObject *	GetInput ()
vtkPointSet *	GetOutput ()
vtkPointSet *	GetOutput (int)
void	SetInputData (vtkDataObject *)
void	SetInputData (int, vtkDataObject *)
void	SetInputData (vtkPointSet *)
void	SetInputData (int, vtkPointSet *)
void	AddInputData (vtkDataObject *)
void	AddInputData (vtkPointSet *)
void	AddInputData (int, vtkPointSet *)
void	AddInputData (int, vtkDataObject *)
virtual int	ProcessRequest (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector)
Public Member Functions inherited from vtkAlgorithm
vtkAlgorithm *	NewInstance () const
int	HasExecutive ()
vtkExecutive *	GetExecutive ()
virtual void	SetExecutive (vtkExecutive *executive)
virtual int	ModifyRequest (vtkInformation *request, int when)
vtkInformation *	GetInputPortInformation (int port)
vtkInformation *	GetOutputPortInformation (int port)
int	GetNumberOfInputPorts ()
int	GetNumberOfOutputPorts ()
void	UpdateProgress (double amount)
vtkInformation *	GetInputArrayInformation (int idx)
void	RemoveAllInputs ()
vtkDataObject *	GetOutputDataObject (int port)
virtual void	RemoveInputConnection (int port, vtkAlgorithmOutput *input)
virtual void	RemoveInputConnection (int port, int idx)
virtual void	RemoveAllInputConnections (int port)
int	GetNumberOfInputConnections (int port)
int	GetTotalNumberOfInputConnections ()
vtkAlgorithmOutput *	GetInputConnection (int port, int index)
vtkAlgorithm *	GetInputAlgorithm (int port, int index, int &algPort)
vtkAlgorithm *	GetInputAlgorithm (int port, int index)
vtkExecutive *	GetInputExecutive (int port, int index)
vtkInformation *	GetInputInformation (int port, int index)
vtkInformation *	GetOutputInformation (int port)
virtual void	UpdateInformation ()
virtual void	UpdateDataObject ()
virtual void	PropagateUpdateExtent ()
virtual void	UpdateWholeExtent ()
void	ConvertTotalInputToPortConnection (int ind, int &port, int &conn)
int	SetUpdateExtentToWholeExtent (int port)
int	SetUpdateExtentToWholeExtent ()
void	SetUpdateExtent (int port, int extent[6])
int	ProcessRequest (vtkInformation *request, vtkCollection *inInfo, vtkInformationVector *outInfo)
virtual int	ComputePipelineMTime (vtkInformation *request, vtkInformationVector **inInfoVec, vtkInformationVector *outInfoVec, int requestFromOutputPort, unsigned long *mtime)
virtual vtkInformation *	GetInformation ()
virtual void	SetInformation (vtkInformation *)
virtual void	Register (vtkObjectBase *o)
virtual void	UnRegister (vtkObjectBase *o)
virtual void	SetAbortExecute (int)
virtual int	GetAbortExecute ()
virtual void	AbortExecuteOn ()
virtual void	AbortExecuteOff ()
virtual void	SetProgress (double)
virtual double	GetProgress ()
void	SetProgressText (const char *ptext)
virtual char *	GetProgressText ()
virtual unsigned long	GetErrorCode ()
virtual void	SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, const char *name)
virtual void	SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, int fieldAttributeType)
virtual void	SetInputArrayToProcess (int idx, vtkInformation *info)
virtual void	SetInputArrayToProcess (int idx, int port, int connection, const char *fieldAssociation, const char *attributeTypeorName)
vtkDataObject *	GetInputDataObject (int port, int connection)
virtual void	SetInputConnection (int port, vtkAlgorithmOutput *input)
virtual void	SetInputConnection (vtkAlgorithmOutput *input)
virtual void	AddInputConnection (int port, vtkAlgorithmOutput *input)
virtual void	AddInputConnection (vtkAlgorithmOutput *input)
virtual void	SetInputDataObject (int port, vtkDataObject *data)
virtual void	SetInputDataObject (vtkDataObject *data)
virtual void	AddInputDataObject (int port, vtkDataObject *data)
virtual void	AddInputDataObject (vtkDataObject *data)
vtkAlgorithmOutput *	GetOutputPort (int index)
vtkAlgorithmOutput *	GetOutputPort ()
vtkAlgorithm *	GetInputAlgorithm ()
vtkExecutive *	GetInputExecutive ()
vtkInformation *	GetInputInformation ()
virtual void	Update (int port)
virtual void	Update ()
virtual void	SetReleaseDataFlag (int)
virtual int	GetReleaseDataFlag ()
void	ReleaseDataFlagOn ()
void	ReleaseDataFlagOff ()
int	UpdateExtentIsEmpty (vtkInformation *pinfo, vtkDataObject *output)
int	UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType)
void	SetUpdateExtent (int port, int piece, int numPieces, int ghostLevel)
void	SetUpdateExtent (int piece, int numPieces, int ghostLevel)
void	SetUpdateExtent (int extent[6])
int *	GetUpdateExtent ()
int *	GetUpdateExtent (int port)
void	GetUpdateExtent (int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)
void	GetUpdateExtent (int port, int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)
void	GetUpdateExtent (int extent[6])
void	GetUpdateExtent (int port, int extent[6])
int	GetUpdatePiece ()
int	GetUpdatePiece (int port)
int	GetUpdateNumberOfPieces ()
int	GetUpdateNumberOfPieces (int port)
int	GetUpdateGhostLevel ()
int	GetUpdateGhostLevel (int port)
void	SetProgressObserver (vtkProgressObserver *)
virtual vtkProgressObserver *	GetProgressObserver ()
Public Member Functions inherited from vtkObject
vtkObject *	NewInstance () const
virtual void	DebugOn ()
virtual void	DebugOff ()
bool	GetDebug ()
void	SetDebug (bool debugFlag)
virtual void	Modified ()
virtual unsigned long	GetMTime ()
unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
unsigned long	AddObserver (const char *event, vtkCommand *, float priority=0.0f)
vtkCommand *	GetCommand (unsigned long tag)
void	RemoveObserver (vtkCommand *)
void	RemoveObservers (unsigned long event, vtkCommand *)
void	RemoveObservers (const char *event, vtkCommand *)
int	HasObserver (unsigned long event, vtkCommand *)
int	HasObserver (const char *event, vtkCommand *)
void	RemoveObserver (unsigned long tag)
void	RemoveObservers (unsigned long event)
void	RemoveObservers (const char *event)
void	RemoveAllObservers ()
int	HasObserver (unsigned long event)
int	HasObserver (const char *event)
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
int	InvokeEvent (unsigned long event, void *callData)
int	InvokeEvent (const char *event, void *callData)
int	InvokeEvent (unsigned long event)
int	InvokeEvent (const char *event)
Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
virtual void	Delete ()
virtual void	FastDelete ()
void	Print (ostream &os)
void	SetReferenceCount (int)
void	PrintRevisions (ostream &)
virtual void	PrintHeader (ostream &os, vtkIndent indent)
virtual void	PrintTrailer (ostream &os, vtkIndent indent)
int	GetReferenceCount ()

Protected Member Functions
	vtkDeformPointSet ()
	~vtkDeformPointSet ()
virtual int	RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
Protected Member Functions inherited from vtkPointSetAlgorithm
	vtkPointSetAlgorithm ()
	~vtkPointSetAlgorithm ()
virtual int	FillOutputPortInformation (int port, vtkInformation *info)
virtual int	FillInputPortInformation (int port, vtkInformation *info)
virtual int	RequestDataObject (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector)
virtual int	ExecuteInformation (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
virtual int	ComputeInputUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
Protected Member Functions inherited from vtkAlgorithm
	vtkAlgorithm ()
	~vtkAlgorithm ()
virtual void	SetNumberOfInputPorts (int n)
virtual void	SetNumberOfOutputPorts (int n)
int	InputPortIndexInRange (int index, const char *action)
int	OutputPortIndexInRange (int index, const char *action)
int	GetInputArrayAssociation (int idx, vtkInformationVector **inputVector)
virtual vtkExecutive *	CreateDefaultExecutive ()
virtual void	ReportReferences (vtkGarbageCollector *)
virtual void	SetNumberOfInputConnections (int port, int n)
int	GetInputArrayAssociation (int idx, int connection, vtkInformationVector **inputVector)
int	GetInputArrayAssociation (int idx, vtkDataObject *input)
vtkDataArray *	GetInputArrayToProcess (int idx, vtkInformationVector **inputVector)
vtkDataArray *	GetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)
vtkDataArray *	GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
vtkDataArray *	GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)
vtkDataArray *	GetInputArrayToProcess (int idx, vtkDataObject *input)
vtkDataArray *	GetInputArrayToProcess (int idx, vtkDataObject *input, int &association)
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector)
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkDataObject *input)
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association)
vtkInformation *	GetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector)
virtual void	SetNthInputConnection (int port, int index, vtkAlgorithmOutput *input)
void	SetInputDataInternal (int port, vtkDataObject *input)
void	AddInputDataInternal (int port, vtkDataObject *input)
virtual void	SetErrorCode (unsigned long)
Protected Member Functions inherited from vtkObject
	vtkObject ()
virtual	~vtkObject ()
virtual void	RegisterInternal (vtkObjectBase *, int check)
virtual void	UnRegisterInternal (vtkObjectBase *, int check)
void	InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=NULL)
void	InternalReleaseFocus ()
Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()
virtual	~vtkObjectBase ()
virtual void	CollectRevisions (ostream &)
	vtkObjectBase (const vtkObjectBase &)
void	operator= (const vtkObjectBase &)

Protected Attributes
int	InitializeWeights
vtkIdType	InitialNumberOfControlMeshPoints
vtkIdType	InitialNumberOfControlMeshCells
vtkIdType	InitialNumberOfPointSetPoints
vtkIdType	InitialNumberOfPointSetCells
vtkSmartPointer< vtkDoubleArray >	Weights
Protected Attributes inherited from vtkAlgorithm
vtkInformation *	Information
double	Progress
char *	ProgressText
vtkProgressObserver *	ProgressObserver
unsigned long	ErrorCode
Protected Attributes inherited from vtkObject
bool	Debug
vtkTimeStamp	MTime
vtkSubjectHelper *	SubjectHelper
Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount
vtkWeakPointerBase **	WeakPointers
typedef vtkPointSetAlgorithm	Superclass
static vtkDeformPointSet *	New ()
static int	IsTypeOf (const char *type)
static vtkDeformPointSet *	SafeDownCast (vtkObjectBase *o)
virtual int	IsA (const char *type)
vtkDeformPointSet *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent)
virtual vtkObjectBase *	NewInstanceInternal () const

Additional Inherited Members
Public Types inherited from vtkPointSetAlgorithm
typedef vtkAlgorithm	Superclass
Public Types inherited from vtkAlgorithm
typedef vtkObject	Superclass
enum	DesiredOutputPrecision { SINGLE_PRECISION, DOUBLE_PRECISION, DEFAULT_PRECISION }
Public Types inherited from vtkObject
typedef vtkObjectBase	Superclass
Static Public Member Functions inherited from vtkPointSetAlgorithm
static vtkPointSetAlgorithm *	New ()
static int	IsTypeOf (const char *type)
static vtkPointSetAlgorithm *	SafeDownCast (vtkObjectBase *o)
Static Public Member Functions inherited from vtkAlgorithm
static vtkAlgorithm *	New ()
static int	IsTypeOf (const char *type)
static vtkAlgorithm *	SafeDownCast (vtkObjectBase *o)
static vtkInformationIntegerKey *	INPUT_IS_OPTIONAL ()
static vtkInformationIntegerKey *	INPUT_IS_REPEATABLE ()
static vtkInformationInformationVectorKey *	INPUT_REQUIRED_FIELDS ()
static vtkInformationStringVectorKey *	INPUT_REQUIRED_DATA_TYPE ()
static vtkInformationInformationVectorKey *	INPUT_ARRAYS_TO_PROCESS ()
static vtkInformationIntegerKey *	INPUT_PORT ()
static vtkInformationIntegerKey *	INPUT_CONNECTION ()
static vtkInformationIntegerKey *	CAN_PRODUCE_SUB_EXTENT ()
static vtkInformationIntegerKey *	CAN_HANDLE_PIECE_REQUEST ()
static void	SetDefaultExecutivePrototype (vtkExecutive *proto)
Static Public Member Functions inherited from vtkObject
static int	IsTypeOf (const char *type)
static vtkObject *	SafeDownCast (vtkObjectBase *o)
static vtkObject *	New ()
static void	BreakOnError ()
static void	SetGlobalWarningDisplay (int val)
static void	GlobalWarningDisplayOn ()
static void	GlobalWarningDisplayOff ()
static int	GetGlobalWarningDisplay ()
Static Public Member Functions inherited from vtkObjectBase
static int	IsTypeOf (const char *name)
static vtkObjectBase *	New ()
Public Attributes inherited from vtkAlgorithm
int	AbortExecute
Static Protected Member Functions inherited from vtkAlgorithm
static vtkInformationIntegerKey *	PORT_REQUIREMENTS_FILLED ()
Static Protected Attributes inherited from vtkAlgorithm
static vtkExecutive *	DefaultExecutivePrototype

Detailed Description

use a control polyhedron to deform an input vtkPointSet

vtkDeformPointSet is a filter that uses a control polyhdron to deform an input dataset of type vtkPointSet. The control polyhedron (or mesh) must be a closed, manifold surface.

The filter executes as follows. In initial pipeline execution, the control mesh and input vtkPointSet are assumed in undeformed position, and an initial set of interpolation weights are computed for each point in the vtkPointSet (one interpolation weight value for each point in the control mesh). The filter then stores these interpolation weights after filter execution. The next time the filter executes, assuming that the number of points/cells in the control mesh and vtkPointSet have not changed, the points in the vtkPointSet are recomputed based on the original weights. Hence if the control mesh has been deformed, it will in turn cause deformation in the vtkPointSet. This can be used to animate or edit the geometry of the vtkPointSet.

Warning

Note that a set of interpolation weights per point in the vtkPointSet is maintained. The number of interpolation weights is the number of points in the control mesh. Hence keep the control mesh small in size or a n^2 data explostion will occur.

The filter maintains interpolation weights between executions (after the initial execution pass computes the interpolation weights). You can explicitly cause the filter to reinitialize by setting the InitializeWeights boolean to true. By default, the filter will execute and then set InitializeWeights to false.

This work was motivated by the work of Tao Ju et al in "Mesh Value Coordinates for Closed Triangular Meshes." The MVC algorithm is currently used to generate interpolation weights. However, in the future this filter may be extended to provide other interpolation functions.

A final note: point data and cell data are passed from the input to the output. Only the point coordinates of the input vtkPointSet are modified.

See also

vtkMeanValueCoordinatesInterpolator vtkProbePolyhedron vtkPolyhedron

Tests:

vtkDeformPointSet (Tests)

Definition at line 76 of file vtkDeformPointSet.h.

Member Typedef Documentation

typedef vtkPointSetAlgorithm vtkDeformPointSet::Superclass

Standard methods for instantiable (i.e., concrete) class.

Definition at line 82 of file vtkDeformPointSet.h.

Constructor & Destructor Documentation

vtkDeformPointSet::vtkDeformPointSet ( )

protected

vtkDeformPointSet::~vtkDeformPointSet ( )

protected

Member Function Documentation

static vtkDeformPointSet* vtkDeformPointSet::New ( )

static

Standard methods for instantiable (i.e., concrete) class.

static int vtkDeformPointSet::IsTypeOf ( const char *  type )

static

Standard methods for instantiable (i.e., concrete) class.

virtual int vtkDeformPointSet::IsA ( const char *  type )

virtual

Standard methods for instantiable (i.e., concrete) class.

Reimplemented from vtkPointSetAlgorithm.

static vtkDeformPointSet* vtkDeformPointSet::SafeDownCast ( vtkObjectBase *  o )

static

Standard methods for instantiable (i.e., concrete) class.

virtual vtkObjectBase* vtkDeformPointSet::NewInstanceInternal ( ) const

protectedvirtual

Standard methods for instantiable (i.e., concrete) class.

Reimplemented from vtkPointSetAlgorithm.

vtkDeformPointSet* vtkDeformPointSet::NewInstance

(

)

const

Standard methods for instantiable (i.e., concrete) class.

void vtkDeformPointSet::PrintSelf ( ostream &  os, vtkIndent  indent  )

virtual

Standard methods for instantiable (i.e., concrete) class.

Reimplemented from vtkPointSetAlgorithm.

void vtkDeformPointSet::SetControlMeshData

(

vtkPolyData *

controlMesh

)

Specify the control mesh to deform the input vtkPointSet. The control mesh must be a closed, non-self-intersecting, manifold mesh.

vtkPolyData* vtkDeformPointSet::GetControlMeshData

(

)

Specify the control mesh to deform the input vtkPointSet. The control mesh must be a closed, non-self-intersecting, manifold mesh.

void vtkDeformPointSet::SetControlMeshConnection

(

vtkAlgorithmOutput *

algOutput

)

Specify the point locations used to probe input. Any geometry can be used. New style. Equivalent to SetInputConnection(1, algOutput).

virtual void vtkDeformPointSet::SetInitializeWeights ( int  )

virtual

Specify whether to regenerate interpolation weights or not. Initially the filter will reexecute no matter what this flag is set to (initial weights must be computed). Also, this flag is ignored if the number of input points/cells or the number of control mesh points/cells changes between executions. Thus flag is used to force reexecution and recomputation of weights.

virtual int vtkDeformPointSet::GetInitializeWeights ( )

virtual

Specify whether to regenerate interpolation weights or not. Initially the filter will reexecute no matter what this flag is set to (initial weights must be computed). Also, this flag is ignored if the number of input points/cells or the number of control mesh points/cells changes between executions. Thus flag is used to force reexecution and recomputation of weights.

virtual void vtkDeformPointSet::InitializeWeightsOn ( )

virtual

Specify whether to regenerate interpolation weights or not. Initially the filter will reexecute no matter what this flag is set to (initial weights must be computed). Also, this flag is ignored if the number of input points/cells or the number of control mesh points/cells changes between executions. Thus flag is used to force reexecution and recomputation of weights.

virtual void vtkDeformPointSet::InitializeWeightsOff ( )

virtual

Specify whether to regenerate interpolation weights or not. Initially the filter will reexecute no matter what this flag is set to (initial weights must be computed). Also, this flag is ignored if the number of input points/cells or the number of control mesh points/cells changes between executions. Thus flag is used to force reexecution and recomputation of weights.

virtual int vtkDeformPointSet::RequestData ( vtkInformation *  , vtkInformationVector **  , vtkInformationVector *    )

protectedvirtual

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

Reimplemented from vtkPointSetAlgorithm.

Member Data Documentation

int vtkDeformPointSet::InitializeWeights

protected

Definition at line 113 of file vtkDeformPointSet.h.

vtkIdType vtkDeformPointSet::InitialNumberOfControlMeshPoints

protected

Definition at line 116 of file vtkDeformPointSet.h.

vtkIdType vtkDeformPointSet::InitialNumberOfControlMeshCells

protected

Definition at line 117 of file vtkDeformPointSet.h.

vtkIdType vtkDeformPointSet::InitialNumberOfPointSetPoints

protected

Definition at line 118 of file vtkDeformPointSet.h.

vtkIdType vtkDeformPointSet::InitialNumberOfPointSetCells

protected

Definition at line 119 of file vtkDeformPointSet.h.

vtkSmartPointer<vtkDoubleArray> vtkDeformPointSet::Weights

protected

Definition at line 120 of file vtkDeformPointSet.h.

---

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

• dox/Filters/General/vtkDeformPointSet.h