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vtkDeformPointSet Class Reference

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

#include <vtkDeformPointSet.h>

Inheritance diagram for vtkDeformPointSet:
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Collaboration diagram for vtkDeformPointSet:
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Public Member Functions

void SetControlMeshConnection (vtkAlgorithmOutput *algOutput)
 
void SetControlMeshData (vtkPolyData *controlMesh)
 
vtkPolyDataGetControlMeshData ()
 
virtual void SetInitializeWeights (int)
 
virtual int GetInitializeWeights ()
 
virtual void InitializeWeightsOn ()
 
virtual void InitializeWeightsOff ()
 
- Public Member Functions inherited from vtkPointSetAlgorithm
vtkPointSetAlgorithmNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 
vtkPolyDataGetPolyDataOutput ()
 
vtkStructuredGridGetStructuredGridOutput ()
 
vtkUnstructuredGrid * GetUnstructuredGridOutput ()
 
vtkDataObjectGetInput ()
 
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
vtkAlgorithmNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 
int HasExecutive ()
 
vtkExecutiveGetExecutive ()
 
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 ()
 
vtkDataObjectGetOutputDataObject (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 ()
 
vtkAlgorithmOutputGetInputConnection (int port, int index)
 
vtkAlgorithmGetInputAlgorithm (int port, int index, int &algPort)
 
vtkAlgorithmGetInputAlgorithm (int port, int index)
 
vtkExecutiveGetInputExecutive (int port, int index)
 
vtkInformation * GetInputInformation (int port, int index)
 
vtkInformation * GetOutputInformation (int port)
 
virtual void UpdateInformation ()
 
virtual void PropagateUpdateExtent ()
 
virtual void UpdateWholeExtent ()
 
void ConvertTotalInputToPortConnection (int ind, int &port, int &conn)
 
virtual double ComputePriority ()
 
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)
 
vtkDataObjectGetInputDataObject (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)
 
vtkAlgorithmOutputGetOutputPort (int index)
 
vtkAlgorithmOutputGetOutputPort ()
 
vtkAlgorithmGetInputAlgorithm ()
 
vtkExecutiveGetInputExecutive ()
 
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)
 

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 vtkExecutiveCreateDefaultExecutive ()
 
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 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
 
unsigned long ErrorCode
 
typedef vtkPointSetAlgorithm Superclass
 
static vtkDeformPointSetNew ()
 
static int IsTypeOf (const char *type)
 
static vtkDeformPointSetSafeDownCast (vtkObjectBase *o)
 
virtual int IsA (const char *type)
 
vtkDeformPointSetNewInstance () 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 }
 
- Static Public Member Functions inherited from vtkPointSetAlgorithm
static vtkPointSetAlgorithmNew ()
 
static int IsTypeOf (const char *type)
 
static vtkPointSetAlgorithmSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkAlgorithm
static vtkAlgorithmNew ()
 
static int IsTypeOf (const char *type)
 
static vtkAlgorithmSafeDownCast (vtkObjectBase *o)
 
static void SetDefaultExecutivePrototype (vtkExecutive *proto)
 
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 * PRESERVES_DATASET ()
 
static vtkInformationIntegerKey * PRESERVES_GEOMETRY ()
 
static vtkInformationIntegerKey * PRESERVES_BOUNDS ()
 
static vtkInformationIntegerKey * PRESERVES_TOPOLOGY ()
 
static vtkInformationIntegerKey * PRESERVES_ATTRIBUTES ()
 
static vtkInformationIntegerKey * PRESERVES_RANGES ()
 
static vtkInformationIntegerKey * MANAGES_METAINFORMATION ()
 
- 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 vtkExecutiveDefaultExecutivePrototype
 

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

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 
)

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

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: