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Static Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
vtkPolyDataPointSampler Class Reference

generate points from vtkPolyData More...

#include <vtkPolyDataPointSampler.h>

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

virtual void SetDistance (double)
virtual double GetDistance ()
virtual int GetGenerateVertexPoints ()
virtual void SetGenerateVertexPoints (int)
virtual void GenerateVertexPointsOn ()
virtual void GenerateVertexPointsOff ()
virtual int GetGenerateEdgePoints ()
virtual void SetGenerateEdgePoints (int)
virtual void GenerateEdgePointsOn ()
virtual void GenerateEdgePointsOff ()
virtual int GetGenerateInteriorPoints ()
virtual void SetGenerateInteriorPoints (int)
virtual void GenerateInteriorPointsOn ()
virtual void GenerateInteriorPointsOff ()
virtual int GetGenerateVertices ()
virtual void SetGenerateVertices (int)
virtual void GenerateVerticesOn ()
virtual void GenerateVerticesOff ()
- Public Member Functions inherited from vtkPolyDataAlgorithm
vtkDataObjectGetInput ()
vtkDataObjectGetInput (int port)
vtkPolyDataGetPolyDataInput (int port)
vtkPolyDataGetOutput ()
vtkPolyDataGetOutput (int)
virtual void SetOutput (vtkDataObject *d)
virtual int ProcessRequest (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
void SetInput (vtkDataObject *)
void SetInput (int, vtkDataObject *)
void AddInput (vtkDataObject *)
void AddInput (int, vtkDataObject *)
- Public Member Functions inherited from vtkAlgorithm
int HasExecutive ()
vtkExecutiveGetExecutive ()
virtual void SetExecutive (vtkExecutive *executive)
virtual int ModifyRequest (vtkInformation *request, int when)
vtkInformationGetInputPortInformation (int port)
vtkInformationGetOutputPortInformation (int port)
int GetNumberOfInputPorts ()
int GetNumberOfOutputPorts ()
void UpdateProgress (double amount)
vtkInformationGetInputArrayInformation (int idx)
void RemoveAllInputs ()
vtkDataObjectGetOutputDataObject (int port)
virtual void RemoveInputConnection (int port, vtkAlgorithmOutput *input)
int GetNumberOfInputConnections (int port)
int GetTotalNumberOfInputConnections ()
vtkAlgorithmOutputGetInputConnection (int port, int index)
virtual void Update ()
virtual void UpdateInformation ()
virtual void UpdateWholeExtent ()
void ConvertTotalInputToPortConnection (int ind, int &port, int &conn)
virtual double ComputePriority ()
int ProcessRequest (vtkInformation *request, vtkCollection *inInfo, vtkInformationVector *outInfo)
virtual int ComputePipelineMTime (vtkInformation *request, vtkInformationVector **inInfoVec, vtkInformationVector *outInfoVec, int requestFromOutputPort, unsigned long *mtime)
virtual vtkInformationGetInformation ()
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)
vtkAlgorithmOutputGetOutputPort (int index)
vtkAlgorithmOutputGetOutputPort ()
virtual void SetReleaseDataFlag (int)
virtual int GetReleaseDataFlag ()
void ReleaseDataFlagOn ()
void ReleaseDataFlagOff ()
int UpdateExtentIsEmpty (vtkDataObject *output)
int UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType)
- Public Member Functions inherited from vtkObject
virtual void DebugOn ()
virtual void DebugOff ()
unsigned char GetDebug ()
void SetDebug (unsigned char 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)
vtkCommandGetCommand (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)
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 &os)
virtual void PrintHeader (ostream &os, vtkIndent indent)
virtual void PrintTrailer (ostream &os, vtkIndent indent)
int GetReferenceCount ()

Static Public Member Functions

static vtkPolyDataPointSamplerNew ()

Protected Member Functions

 vtkPolyDataPointSampler ()
 ~vtkPolyDataPointSampler ()
int RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
void SampleEdge (vtkPoints *pts, double x0[3], double x1[3])
void SampleTriangle (vtkPoints *newPts, vtkPoints *inPts, vtkIdType *pts)
void SamplePolygon (vtkPoints *newPts, vtkPoints *inPts, vtkIdType npts, vtkIdType *pts)
- 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)
virtual int RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
virtual void ExecuteData (vtkDataObject *output)
virtual void Execute ()
- 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)
vtkDataArrayGetInputArrayToProcess (int idx, vtkInformationVector **inputVector)
vtkDataArrayGetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)
vtkDataArrayGetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
vtkDataArrayGetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)
vtkDataArrayGetInputArrayToProcess (int idx, vtkDataObject *input)
vtkDataArrayGetInputArrayToProcess (int idx, vtkDataObject *input, int &association)
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector)
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, vtkDataObject *input)
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association)
vtkInformationGetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector)
virtual void SetNthInputConnection (int port, int index, vtkAlgorithmOutput *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 &os)
 vtkObjectBase (const vtkObjectBase &)
void operator= (const vtkObjectBase &)

Protected Attributes

double Distance
double Distance2
int GenerateVertexPoints
int GenerateEdgePoints
int GenerateInteriorPoints
int GenerateVertices
typedef vtkPolyDataAlgorithm Superclass
static int IsTypeOf (const char *type)
static vtkPolyDataPointSamplerSafeDownCast (vtkObject *o)
virtual const char * GetClassName ()
virtual int IsA (const char *type)
void PrintSelf (ostream &os, vtkIndent indent)

Additional Inherited Members

- Public Types inherited from vtkPolyDataAlgorithm
typedef vtkAlgorithm Superclass
- Public Attributes inherited from vtkAlgorithm
int AbortExecute
- Static Protected Member Functions inherited from vtkAlgorithm
static vtkInformationIntegerKeyPORT_REQUIREMENTS_FILLED ()
- Static Protected Attributes inherited from vtkAlgorithm
static vtkExecutiveDefaultExecutivePrototype
- Friends inherited from vtkObject

Detailed Description

generate points from vtkPolyData

vtkPolyDataPointSampler generates points from input vtkPolyData. The points are placed approximately a specified distance apart.

This filter functions as follows. First, it regurgitates all input points, then samples all lines, plus edges associated with the input polygons and triangle strips to produce edge points. Finally, the interiors of polygons and triangle strips are subsampled to produce points. All of these functiona can be enabled or disabled separately. Note that this algorithm only approximately generates points the specified distance apart. Generally the point density is finer than requested.

Warning
Point generation can be useful in a variety of applications. For example, generating seed points for glyphing or streamline generation. Another useful application is generating points for implicit modeling. In many cases implicit models can be more efficiently generated from points than from polygons or other primitives.
See Also
vtkImplicitModeller
Tests:
vtkPolyDataPointSampler (Tests)

Definition at line 48 of file vtkPolyDataPointSampler.h.

Member Typedef Documentation

Standard macros for type information and printing.

Definition at line 56 of file vtkPolyDataPointSampler.h.

Constructor & Destructor Documentation

vtkPolyDataPointSampler::vtkPolyDataPointSampler ( )
protected
vtkPolyDataPointSampler::~vtkPolyDataPointSampler ( )
inlineprotected

Definition at line 104 of file vtkPolyDataPointSampler.h.

Member Function Documentation

static vtkPolyDataPointSampler* vtkPolyDataPointSampler::New ( )
static

Instantiate this class.

Reimplemented from vtkPolyDataAlgorithm.

virtual const char* vtkPolyDataPointSampler::GetClassName ( )
virtual

Standard macros for type information and printing.

Reimplemented from vtkPolyDataAlgorithm.

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

Standard macros for type information and printing.

Reimplemented from vtkPolyDataAlgorithm.

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

Standard macros for type information and printing.

Reimplemented from vtkPolyDataAlgorithm.

static vtkPolyDataPointSampler* vtkPolyDataPointSampler::SafeDownCast ( vtkObject o)
static

Standard macros for type information and printing.

Reimplemented from vtkPolyDataAlgorithm.

void vtkPolyDataPointSampler::PrintSelf ( ostream &  os,
vtkIndent  indent 
)
virtual

Standard macros for type information and printing.

Reimplemented from vtkPolyDataAlgorithm.

virtual void vtkPolyDataPointSampler::SetDistance ( double  )
virtual

Set/Get the approximate distance between points. This is an absolute distance measure. The default is 0.01.

virtual double vtkPolyDataPointSampler::GetDistance ( )
virtual

Set/Get the approximate distance between points. This is an absolute distance measure. The default is 0.01.

virtual int vtkPolyDataPointSampler::GetGenerateVertexPoints ( )
virtual

Specify/retrieve a boolean flag indicating whether cell vertex points should be output.

virtual void vtkPolyDataPointSampler::SetGenerateVertexPoints ( int  )
virtual

Specify/retrieve a boolean flag indicating whether cell vertex points should be output.

virtual void vtkPolyDataPointSampler::GenerateVertexPointsOn ( )
virtual

Specify/retrieve a boolean flag indicating whether cell vertex points should be output.

virtual void vtkPolyDataPointSampler::GenerateVertexPointsOff ( )
virtual

Specify/retrieve a boolean flag indicating whether cell vertex points should be output.

virtual int vtkPolyDataPointSampler::GetGenerateEdgePoints ( )
virtual

Specify/retrieve a boolean flag indicating whether cell edges should be sampled to produce output points. The default is true.

virtual void vtkPolyDataPointSampler::SetGenerateEdgePoints ( int  )
virtual

Specify/retrieve a boolean flag indicating whether cell edges should be sampled to produce output points. The default is true.

virtual void vtkPolyDataPointSampler::GenerateEdgePointsOn ( )
virtual

Specify/retrieve a boolean flag indicating whether cell edges should be sampled to produce output points. The default is true.

virtual void vtkPolyDataPointSampler::GenerateEdgePointsOff ( )
virtual

Specify/retrieve a boolean flag indicating whether cell edges should be sampled to produce output points. The default is true.

virtual int vtkPolyDataPointSampler::GetGenerateInteriorPoints ( )
virtual

Specify/retrieve a boolean flag indicating whether cell interiors should be sampled to produce output points. The default is true.

virtual void vtkPolyDataPointSampler::SetGenerateInteriorPoints ( int  )
virtual

Specify/retrieve a boolean flag indicating whether cell interiors should be sampled to produce output points. The default is true.

virtual void vtkPolyDataPointSampler::GenerateInteriorPointsOn ( )
virtual

Specify/retrieve a boolean flag indicating whether cell interiors should be sampled to produce output points. The default is true.

virtual void vtkPolyDataPointSampler::GenerateInteriorPointsOff ( )
virtual

Specify/retrieve a boolean flag indicating whether cell interiors should be sampled to produce output points. The default is true.

virtual int vtkPolyDataPointSampler::GetGenerateVertices ( )
virtual

Specify/retrieve a boolean flag indicating whether cell vertices should be generated. Cell vertices are useful if you actually want to display the points (that is, for each point generated, a vertex is generated). Recall that VTK only renders vertices and not points. The default is true.

virtual void vtkPolyDataPointSampler::SetGenerateVertices ( int  )
virtual

Specify/retrieve a boolean flag indicating whether cell vertices should be generated. Cell vertices are useful if you actually want to display the points (that is, for each point generated, a vertex is generated). Recall that VTK only renders vertices and not points. The default is true.

virtual void vtkPolyDataPointSampler::GenerateVerticesOn ( )
virtual

Specify/retrieve a boolean flag indicating whether cell vertices should be generated. Cell vertices are useful if you actually want to display the points (that is, for each point generated, a vertex is generated). Recall that VTK only renders vertices and not points. The default is true.

virtual void vtkPolyDataPointSampler::GenerateVerticesOff ( )
virtual

Specify/retrieve a boolean flag indicating whether cell vertices should be generated. Cell vertices are useful if you actually want to display the points (that is, for each point generated, a vertex is generated). Recall that VTK only renders vertices and not points. The default is true.

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

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

Reimplemented from vtkPolyDataAlgorithm.

void vtkPolyDataPointSampler::SampleEdge ( vtkPoints pts,
double  x0[3],
double  x1[3] 
)
protected
void vtkPolyDataPointSampler::SampleTriangle ( vtkPoints newPts,
vtkPoints inPts,
vtkIdType pts 
)
protected
void vtkPolyDataPointSampler::SamplePolygon ( vtkPoints newPts,
vtkPoints inPts,
vtkIdType  npts,
vtkIdType pts 
)
protected

Member Data Documentation

double vtkPolyDataPointSampler::Distance
protected

Definition at line 108 of file vtkPolyDataPointSampler.h.

double vtkPolyDataPointSampler::Distance2
protected

Definition at line 109 of file vtkPolyDataPointSampler.h.

int vtkPolyDataPointSampler::GenerateVertexPoints
protected

Definition at line 111 of file vtkPolyDataPointSampler.h.

int vtkPolyDataPointSampler::GenerateEdgePoints
protected

Definition at line 112 of file vtkPolyDataPointSampler.h.

int vtkPolyDataPointSampler::GenerateInteriorPoints
protected

Definition at line 113 of file vtkPolyDataPointSampler.h.

int vtkPolyDataPointSampler::GenerateVertices
protected

Definition at line 114 of file vtkPolyDataPointSampler.h.


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