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vtkLoopSubdivisionFilter Class Reference

generate a subdivision surface using the Loop Scheme More...

#include <vtkLoopSubdivisionFilter.h>

Inheritance diagram for vtkLoopSubdivisionFilter:
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Collaboration diagram for vtkLoopSubdivisionFilter:
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Protected Member Functions

 vtkLoopSubdivisionFilter ()
 
 ~vtkLoopSubdivisionFilter ()
 
virtual int RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
 
void GenerateSubdivisionPoints (vtkPolyData *inputDS, vtkIntArray *edgeData, vtkPoints *outputPts, vtkPointData *outputPD)
 
void GenerateEvenStencil (vtkIdType p1, vtkPolyData *polys, vtkIdList *stencilIds, double *weights)
 
void GenerateOddStencil (vtkIdType p1, vtkIdType p2, vtkPolyData *polys, vtkIdList *stencilIds, double *weights)
 
virtual int RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
 
- Protected Member Functions inherited from vtkApproximatingSubdivisionFilter
 vtkApproximatingSubdivisionFilter ()
 
 ~vtkApproximatingSubdivisionFilter ()
 
void GenerateSubdivisionCells (vtkPolyData *inputDS, vtkIntArray *edgeData, vtkCellArray *outputPolys, vtkCellData *outputCD)
 
int FindEdge (vtkPolyData *mesh, vtkIdType cellId, vtkIdType p1, vtkIdType p2, vtkIntArray *edgeData, vtkIdList *cellIds)
 
vtkIdType InterpolatePosition (vtkPoints *inputPts, vtkPoints *outputPts, vtkIdList *stencil, double *weights)
 
- Protected Member Functions inherited from vtkPolyDataAlgorithm
 vtkPolyDataAlgorithm ()
 
 ~vtkPolyDataAlgorithm ()
 
virtual int RequestInformation (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector)
 
virtual int FillOutputPortInformation (int port, vtkInformation *info)
 
virtual int FillInputPortInformation (int port, vtkInformation *info)
 
- 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)
 
typedef
vtkApproximatingSubdivisionFilter 
Superclass
 
static vtkLoopSubdivisionFilterNew ()
 
static int IsTypeOf (const char *type)
 
static vtkLoopSubdivisionFilterSafeDownCast (vtkObjectBase *o)
 
virtual int IsA (const char *type)
 
vtkLoopSubdivisionFilterNewInstance () const
 
virtual vtkObjectBase * NewInstanceInternal () const
 

Additional Inherited Members

- Public Types inherited from vtkApproximatingSubdivisionFilter
typedef vtkPolyDataAlgorithm Superclass
 
- Public Types inherited from vtkPolyDataAlgorithm
typedef vtkAlgorithm Superclass
 
- Public Types inherited from vtkAlgorithm
typedef vtkObject Superclass
 
enum  DesiredOutputPrecision { SINGLE_PRECISION, DOUBLE_PRECISION, DEFAULT_PRECISION }
 
- Public Member Functions inherited from vtkApproximatingSubdivisionFilter
vtkApproximatingSubdivisionFilterNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 
virtual void SetNumberOfSubdivisions (int)
 
virtual int GetNumberOfSubdivisions ()
 
- Public Member Functions inherited from vtkPolyDataAlgorithm
vtkPolyDataAlgorithmNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 
vtkDataObjectGetInput ()
 
vtkDataObjectGetInput (int port)
 
vtkPolyDataGetPolyDataInput (int port)
 
vtkPolyDataGetOutput ()
 
vtkPolyDataGetOutput (int)
 
virtual void SetOutput (vtkDataObject *d)
 
virtual int ProcessRequest (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
 
void SetInputData (vtkDataObject *)
 
void SetInputData (int, vtkDataObject *)
 
void AddInputData (vtkDataObject *)
 
void AddInputData (int, vtkDataObject *)
 
- 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)
 
- Static Public Member Functions inherited from vtkApproximatingSubdivisionFilter
static int IsTypeOf (const char *type)
 
static
vtkApproximatingSubdivisionFilter
SafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkPolyDataAlgorithm
static vtkPolyDataAlgorithmNew ()
 
static int IsTypeOf (const char *type)
 
static vtkPolyDataAlgorithmSafeDownCast (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 ()
 
- Protected Attributes inherited from vtkApproximatingSubdivisionFilter
int NumberOfSubdivisions
 
- Protected Attributes inherited from vtkAlgorithm
vtkInformation * Information
 
double Progress
 
char * ProgressText
 
unsigned long ErrorCode
 
- Static Protected Attributes inherited from vtkAlgorithm
static vtkExecutiveDefaultExecutivePrototype
 

Detailed Description

generate a subdivision surface using the Loop Scheme

vtkLoopSubdivisionFilter is an approximating subdivision scheme that creates four new triangles for each triangle in the mesh. The user can specify the NumberOfSubdivisions. Loop's subdivision scheme is described in: Loop, C., "Smooth Subdivision surfaces based on triangles,", Masters Thesis, University of Utah, August 1987. For a nice summary of the technique see, Hoppe, H., et. al, "Piecewise Smooth Surface Reconstruction,:, Proceedings of Siggraph 94 (Orlando, Florida, July 24-29, 1994). In COmputer Graphics Proceedings, Annual COnference Series, 1994, ACM SIGGRAPH, pp. 295-302.

The filter only operates on triangles. Users should use the vtkTriangleFilter to triangulate meshes that contain polygons or triangle strips.

The filter approximates point data using the same scheme. New triangles create at a subdivision step will have the cell data of their parent cell.

Thanks:
This work was supported by PHS Research Grant No. 1 P41 RR13218-01 from the National Center for Research Resources.
See Also
vtkApproximatingSubdivisionFilter
Tests:
vtkLoopSubdivisionFilter (Tests)

Definition at line 59 of file vtkLoopSubdivisionFilter.h.

Member Typedef Documentation

Construct object with NumberOfSubdivisions set to 1.

Definition at line 65 of file vtkLoopSubdivisionFilter.h.

Constructor & Destructor Documentation

vtkLoopSubdivisionFilter::vtkLoopSubdivisionFilter ( )
inlineprotected

Definition at line 69 of file vtkLoopSubdivisionFilter.h.

vtkLoopSubdivisionFilter::~vtkLoopSubdivisionFilter ( )
inlineprotected

Definition at line 70 of file vtkLoopSubdivisionFilter.h.

Member Function Documentation

static vtkLoopSubdivisionFilter* vtkLoopSubdivisionFilter::New ( )
static

Construct object with NumberOfSubdivisions set to 1.

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

Construct object with NumberOfSubdivisions set to 1.

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

Construct object with NumberOfSubdivisions set to 1.

Reimplemented from vtkApproximatingSubdivisionFilter.

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

Construct object with NumberOfSubdivisions set to 1.

virtual vtkObjectBase* vtkLoopSubdivisionFilter::NewInstanceInternal ( ) const
protectedvirtual

Construct object with NumberOfSubdivisions set to 1.

Reimplemented from vtkApproximatingSubdivisionFilter.

vtkLoopSubdivisionFilter* vtkLoopSubdivisionFilter::NewInstance ( ) const

Construct object with NumberOfSubdivisions set to 1.

virtual int vtkLoopSubdivisionFilter::RequestData ( vtkInformation *  request,
vtkInformationVector **  inputVector,
vtkInformationVector *  outputVector 
)
protectedvirtual

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

Reimplemented from vtkApproximatingSubdivisionFilter.

void vtkLoopSubdivisionFilter::GenerateSubdivisionPoints ( vtkPolyData inputDS,
vtkIntArray *  edgeData,
vtkPoints *  outputPts,
vtkPointData *  outputPD 
)
protectedvirtual
void vtkLoopSubdivisionFilter::GenerateEvenStencil ( vtkIdType  p1,
vtkPolyData polys,
vtkIdList *  stencilIds,
double *  weights 
)
protected
void vtkLoopSubdivisionFilter::GenerateOddStencil ( vtkIdType  p1,
vtkIdType  p2,
vtkPolyData polys,
vtkIdList *  stencilIds,
double *  weights 
)
protected
virtual int vtkLoopSubdivisionFilter::RequestUpdateExtent ( vtkInformation *  ,
vtkInformationVector **  ,
vtkInformationVector *   
)
protectedvirtual

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

Reimplemented from vtkPolyDataAlgorithm.


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