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vtkCenterOfMass Class Reference

Find the center of mass of a set of points. More...

#include <vtkCenterOfMass.h>

Inheritance diagram for vtkCenterOfMass:
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Collaboration diagram for vtkCenterOfMass:
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Public Types

typedef vtkPointSetAlgorithm Superclass
 
- 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 Member Functions

virtual int IsA (const char *type)
 
vtkCenterOfMassNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 
virtual void SetCenter (double, double, double)
 
virtual void SetCenter (double[3])
 
virtual double * GetCenter ()
 
virtual void GetCenter (double &, double &, double &)
 
virtual void GetCenter (double[3])
 
virtual void SetUseScalarsAsWeights (bool)
 
virtual bool GetUseScalarsAsWeights ()
 
- 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)
 

Static Public Member Functions

static vtkCenterOfMassNew ()
 
static int IsTypeOf (const char *type)
 
static vtkCenterOfMassSafeDownCast (vtkObjectBase *o)
 
static void ComputeCenterOfMass (vtkPoints *input, vtkDataArray *scalars, double center[3])
 
- 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 ()
 

Protected Member Functions

virtual vtkObjectBase * NewInstanceInternal () const
 
 vtkCenterOfMass ()
 
int RequestData (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector)
 
- 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)
 

Additional Inherited Members

- Public Attributes inherited from vtkAlgorithm
int AbortExecute
 
- Static Protected Member Functions inherited from vtkAlgorithm
static vtkInformationIntegerKey * PORT_REQUIREMENTS_FILLED ()
 
- Protected Attributes inherited from vtkAlgorithm
vtkInformation * Information
 
double Progress
 
char * ProgressText
 
unsigned long ErrorCode
 
- Static Protected Attributes inherited from vtkAlgorithm
static vtkExecutiveDefaultExecutivePrototype
 

Detailed Description

Find the center of mass of a set of points.

vtkCenterOfMass finds the "center of mass" of a vtkPointSet (vtkPolyData or vtkUnstructuredGrid). Optionally, the user can specify to use the scalars as weights in the computation. If this option, UseScalarsAsWeights, is off, each point contributes equally in the calculation.

You must ensure Update() has been called before GetCenter will produce a valid value.

Tests:
vtkCenterOfMass (Tests)

Definition at line 39 of file vtkCenterOfMass.h.

Member Typedef Documentation

Definition at line 43 of file vtkCenterOfMass.h.

Constructor & Destructor Documentation

vtkCenterOfMass::vtkCenterOfMass ( )
protected

Member Function Documentation

static vtkCenterOfMass* vtkCenterOfMass::New ( )
static
static int vtkCenterOfMass::IsTypeOf ( const char *  type)
static
virtual int vtkCenterOfMass::IsA ( const char *  type)
virtual

Reimplemented from vtkPointSetAlgorithm.

static vtkCenterOfMass* vtkCenterOfMass::SafeDownCast ( vtkObjectBase *  o)
static
virtual vtkObjectBase* vtkCenterOfMass::NewInstanceInternal ( ) const
protectedvirtual

Reimplemented from vtkPointSetAlgorithm.

vtkCenterOfMass* vtkCenterOfMass::NewInstance ( ) const
void vtkCenterOfMass::PrintSelf ( ostream &  os,
vtkIndent  indent 
)
virtual void vtkCenterOfMass::SetCenter ( double  ,
double  ,
double   
)
virtual

Get the output of the center of mass computation.

virtual void vtkCenterOfMass::SetCenter ( double  [3])
virtual

Get the output of the center of mass computation.

virtual double* vtkCenterOfMass::GetCenter ( )
virtual

Get the output of the center of mass computation.

virtual void vtkCenterOfMass::GetCenter ( double &  ,
double &  ,
double &   
)
virtual

Get the output of the center of mass computation.

virtual void vtkCenterOfMass::GetCenter ( double  [3])
virtual

Get the output of the center of mass computation.

virtual void vtkCenterOfMass::SetUseScalarsAsWeights ( bool  )
virtual

Set a flag to determine if the points are weighted.

virtual bool vtkCenterOfMass::GetUseScalarsAsWeights ( )
virtual

Set a flag to determine if the points are weighted.

static void vtkCenterOfMass::ComputeCenterOfMass ( vtkPoints *  input,
vtkDataArray *  scalars,
double  center[3] 
)
static

This function is called by RequestData. It exists so that other classes may use this computation without constructing a vtkCenterOfMass object. The scalars can be set to NULL if all points are to be weighted equally. If scalars are used, it is the caller's responsibility to ensure that the number of scalars matches the number of points, and that the sum of the scalars is a positive value.

int vtkCenterOfMass::RequestData ( vtkInformation *  ,
vtkInformationVector **  ,
vtkInformationVector *   
)
protectedvirtual

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

Reimplemented from vtkPointSetAlgorithm.


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