extract / segment points based on geometric connectivity More...

#include <vtkConnectedPointsFilter.h>

Inheritance diagram for vtkConnectedPointsFilter:

Collaboration diagram for vtkConnectedPointsFilter:

Public Types
typedef vtkPolyDataAlgorithm	Superclass

Public Types inherited from vtkPolyDataAlgorithm
typedef vtkAlgorithm	Superclass

Public Types inherited from vtkAlgorithm
enum	DesiredOutputPrecision { SINGLE_PRECISION, DOUBLE_PRECISION, DEFAULT_PRECISION }
	Values used for setting the desired output precision for various algorithms. More...

typedef vtkObject	Superclass

Public Member Functions
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class. More...

vtkConnectedPointsFilter *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses. More...

virtual void	SetRadius (double)
	Set / get the radius variable specifying a local sphere used to define local point neighborhood. More...

virtual double	GetRadius ()

virtual void	SetExtractionMode (int)
	Control the extraction of connected regions. More...

virtual int	GetExtractionMode ()

void	SetExtractionModeToPointSeededRegions ()

void	SetExtractionModeToLargestRegion ()

void	SetExtractionModeToSpecifiedRegions ()

void	SetExtractionModeToClosestPointRegion ()

void	SetExtractionModeToAllRegions ()

const char *	GetExtractionModeAsString ()
	Return the method of extraction as a string. More...

virtual void	SetClosestPoint (double, double, double)
	Use to specify x-y-z point coordinates when extracting the region closest to a specified point. More...

virtual void	SetClosestPoint (double[3])

virtual double *	GetClosestPoint ()

virtual void	GetClosestPoint (double data[3])

void	InitializeSeedList ()
	Initialize list of point ids ids used to seed regions. More...

void	AddSeed (vtkIdType id)
	Add a non-negative point seed id. More...

void	DeleteSeed (vtkIdType id)
	Delete a point seed id. More...

void	InitializeSpecifiedRegionList ()
	Initialize list of region ids to extract. More...

void	AddSpecifiedRegion (vtkIdType id)
	Add a non-negative region id to extract. More...

void	DeleteSpecifiedRegion (vtkIdType id)
	Delete a region id to extract. More...

virtual void	SetAlignedNormals (int)
	Turn on/off connectivity based on point normal consistency. More...

virtual int	GetAlignedNormals ()

virtual void	AlignedNormalsOn ()

virtual void	AlignedNormalsOff ()

virtual void	SetNormalAngle (double)
	Specify a threshold for normal angles. More...

virtual double	GetNormalAngle ()

virtual void	SetScalarConnectivity (int)
	Turn on/off connectivity based on scalar value. More...

virtual int	GetScalarConnectivity ()

virtual void	ScalarConnectivityOn ()

virtual void	ScalarConnectivityOff ()

virtual void	SetScalarRange (double, double)
	Set the scalar range to use to extract points based on scalar connectivity. More...

void	SetScalarRange (double[2])

virtual double *	GetScalarRange ()

virtual void	GetScalarRange (double &, double &)

virtual void	GetScalarRange (double[2])

int	GetNumberOfExtractedRegions ()
	Obtain the number of connected regions. More...

void	SetLocator (vtkAbstractPointLocator *locator)
	Specify a point locator. More...

virtual vtkAbstractPointLocator *	GetLocator ()

Public Member Functions inherited from vtkPolyDataAlgorithm
vtkPolyDataAlgorithm *	NewInstance () const

vtkPolyData *	GetOutput ()
	Get the output data object for a port on this algorithm. More...

vtkPolyData *	GetOutput (int)

virtual void	SetOutput (vtkDataObject *d)

vtkTypeBool	ProcessRequest (vtkInformation , vtkInformationVector , vtkInformationVector ) override
	see vtkAlgorithm for details More...

vtkDataObject *	GetInput ()

vtkDataObject *	GetInput (int port)

vtkPolyData *	GetPolyDataInput (int port)

void	SetInputData (vtkDataObject *)
	Assign a data object as input. More...

void	SetInputData (int, vtkDataObject *)

void	AddInputData (vtkDataObject *)
	Assign a data object as input. More...

void	AddInputData (int, vtkDataObject *)

Public Member Functions inherited from vtkAlgorithm
vtkAlgorithm *	NewInstance () const

int	HasExecutive ()
	Check whether this algorithm has an assigned executive. More...

vtkExecutive *	GetExecutive ()
	Get this algorithm's executive. More...

virtual void	SetExecutive (vtkExecutive *executive)
	Set this algorithm's executive. More...

vtkTypeBool	ProcessRequest (vtkInformation request, vtkCollection inInfo, vtkInformationVector *outInfo)
	Version of ProcessRequest() that is wrapped. More...

virtual int	ComputePipelineMTime (vtkInformation request, vtkInformationVector inInfoVec, vtkInformationVector outInfoVec, int requestFromOutputPort, vtkMTimeType *mtime)
	A special version of ProcessRequest meant specifically for the pipeline modified time request. More...

virtual int	ModifyRequest (vtkInformation *request, int when)
	This method gives the algorithm a chance to modify the contents of a request before or after (specified in the when argument) it is forwarded. More...

vtkInformation *	GetInputPortInformation (int port)
	Get the information object associated with an input port. More...

vtkInformation *	GetOutputPortInformation (int port)
	Get the information object associated with an output port. More...

virtual vtkInformation *	GetInformation ()
	Set/Get the information object associated with this algorithm. More...

virtual void	SetInformation (vtkInformation *)

int	GetNumberOfInputPorts ()
	Get the number of input ports used by the algorithm. More...

int	GetNumberOfOutputPorts ()
	Get the number of output ports provided by the algorithm. More...

void	Register (vtkObjectBase *o) override
	Participate in garbage collection. More...

void	UnRegister (vtkObjectBase *o) override
	Decrease the reference count (release by another object). More...

virtual void	SetAbortExecute (vtkTypeBool)
	Set/Get the AbortExecute flag for the process object. More...

virtual vtkTypeBool	GetAbortExecute ()

virtual void	AbortExecuteOn ()

virtual void	AbortExecuteOff ()

virtual double	GetProgress ()
	Get the execution progress of a process object. More...

void	SetProgress (double)
	`SetProgress` is deprecated. More...

void	UpdateProgress (double amount)
	Update the progress of the process object. More...

void	SetProgressShiftScale (double shift, double scale)
	Specify the shift and scale values to use to apply to the progress amount when `UpdateProgress` is called. More...

virtual double	GetProgressShift ()

virtual double	GetProgressScale ()

void	SetProgressText (const char *ptext)
	Set the current text message associated with the progress state. More...

virtual char *	GetProgressText ()

virtual unsigned long	GetErrorCode ()
	The error code contains a possible error that occurred while reading or writing the file. More...

virtual void	SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, const char *name)
	Set the input data arrays that this algorithm will process. More...

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)
	String based versions of SetInputArrayToProcess(). More...

vtkInformation *	GetInputArrayInformation (int idx)
	Get the info object for the specified input array to this algorithm. More...

void	RemoveAllInputs ()
	Remove all the input data. More...

vtkDataObject *	GetOutputDataObject (int port)
	Get the data object that will contain the algorithm output for the given port. More...

vtkDataObject *	GetInputDataObject (int port, int connection)
	Get the data object that will contain the algorithm input for the given port and given connection. More...

virtual void	SetInputConnection (int port, vtkAlgorithmOutput *input)
	Set the connection for the given input port index. More...

virtual void	SetInputConnection (vtkAlgorithmOutput *input)

virtual void	AddInputConnection (int port, vtkAlgorithmOutput *input)
	Add a connection to the given input port index. More...

virtual void	AddInputConnection (vtkAlgorithmOutput *input)

virtual void	RemoveInputConnection (int port, vtkAlgorithmOutput *input)
	Remove a connection from the given input port index. More...

virtual void	RemoveInputConnection (int port, int idx)
	Remove a connection given by index idx. More...

virtual void	RemoveAllInputConnections (int port)
	Removes all input connections. More...

virtual void	SetInputDataObject (int port, vtkDataObject *data)
	Sets the data-object as an input on the given port index. More...

virtual void	SetInputDataObject (vtkDataObject *data)

virtual void	AddInputDataObject (int port, vtkDataObject *data)
	Add the data-object as an input to this given port. More...

virtual void	AddInputDataObject (vtkDataObject *data)

vtkAlgorithmOutput *	GetOutputPort (int index)
	Get a proxy object corresponding to the given output port of this algorithm. More...

vtkAlgorithmOutput *	GetOutputPort ()

int	GetNumberOfInputConnections (int port)
	Get the number of inputs currently connected to a port. More...

int	GetTotalNumberOfInputConnections ()
	Get the total number of inputs for this algorithm. More...

vtkAlgorithmOutput *	GetInputConnection (int port, int index)
	Get the algorithm output port connected to an input port. More...

vtkAlgorithm *	GetInputAlgorithm (int port, int index, int &algPort)
	Returns the algorithm and the output port index of that algorithm connected to a port-index pair. More...

vtkAlgorithm *	GetInputAlgorithm (int port, int index)
	Returns the algorithm connected to a port-index pair. More...

vtkAlgorithm *	GetInputAlgorithm ()
	Equivalent to GetInputAlgorithm(0, 0). More...

vtkExecutive *	GetInputExecutive (int port, int index)
	Returns the executive associated with a particular input connection. More...

vtkExecutive *	GetInputExecutive ()
	Equivalent to GetInputExecutive(0, 0) More...

vtkInformation *	GetInputInformation (int port, int index)
	Return the information object that is associated with a particular input connection. More...

vtkInformation *	GetInputInformation ()
	Equivalent to GetInputInformation(0, 0) More...

vtkInformation *	GetOutputInformation (int port)
	Return the information object that is associated with a particular output port. More...

virtual void	Update (int port)
	Bring this algorithm's outputs up-to-date. More...

virtual void	Update ()

virtual vtkTypeBool	Update (int port, vtkInformationVector *requests)
	This method enables the passing of data requests to the algorithm to be used during execution (in addition to bringing a particular port up-to-date). More...

virtual vtkTypeBool	Update (vtkInformation *requests)
	Convenience method to update an algorithm after passing requests to its first output port. More...

virtual int	UpdatePiece (int piece, int numPieces, int ghostLevels, const int extents[6]=nullptr)
	Convenience method to update an algorithm after passing requests to its first output port. More...

virtual int	UpdateExtent (const int extents[6])
	Convenience method to update an algorithm after passing requests to its first output port. More...

virtual int	UpdateTimeStep (double time, int piece=-1, int numPieces=1, int ghostLevels=0, const int extents[6]=nullptr)
	Convenience method to update an algorithm after passing requests to its first output port. More...

virtual void	UpdateInformation ()
	Bring the algorithm's information up-to-date. More...

virtual void	UpdateDataObject ()
	Create output object(s). More...

virtual void	PropagateUpdateExtent ()
	Propagate meta-data upstream. More...

virtual void	UpdateWholeExtent ()
	Bring this algorithm's outputs up-to-date. More...

void	ConvertTotalInputToPortConnection (int ind, int &port, int &conn)
	Convenience routine to convert from a linear ordering of input connections to a port/connection pair. More...

virtual void	SetReleaseDataFlag (int)
	Turn release data flag on or off for all output ports. More...

virtual int	GetReleaseDataFlag ()

void	ReleaseDataFlagOn ()

void	ReleaseDataFlagOff ()

int	UpdateExtentIsEmpty (vtkInformation pinfo, vtkDataObject output)
	This detects when the UpdateExtent will generate no data This condition is satisfied when the UpdateExtent has zero volume (0,-1,...) or the UpdateNumberOfPieces is 0. More...

int	UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType)

int *	GetUpdateExtent ()
	These functions return the update extent for output ports that use 3D extents. More...

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 ()
	These functions return the update extent for output ports that use piece extents. More...

int	GetUpdatePiece (int port)

int	GetUpdateNumberOfPieces ()

int	GetUpdateNumberOfPieces (int port)

int	GetUpdateGhostLevel ()

int	GetUpdateGhostLevel (int port)

void	SetProgressObserver (vtkProgressObserver *)
	If an ProgressObserver is set, the algorithm will report progress through it rather than directly. More...

virtual vtkProgressObserver *	GetProgressObserver ()

Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)

virtual void	DebugOn ()
	Turn debugging output on. More...

virtual void	DebugOff ()
	Turn debugging output off. More...

bool	GetDebug ()
	Get the value of the debug flag. More...

void	SetDebug (bool debugFlag)
	Set the value of the debug flag. More...

virtual void	Modified ()
	Update the modification time for this object. More...

virtual vtkMTimeType	GetMTime ()
	Return this object's modified time. More...

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

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 )

vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)

vtkTypeBool	HasObserver (const char event, vtkCommand )

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

vtkTypeBool	HasObserver (unsigned long event)

vtkTypeBool	HasObserver (const char *event)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...

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)
	Allow user to set the AbortFlagOn() with the return value of the callback method. More...

int	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not. More...

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
	Return the class name as a string. More...

virtual void	Delete ()
	Delete a VTK object. More...

virtual void	FastDelete ()
	Delete a reference to this object. More...

void	InitializeObjectBase ()

void	Print (ostream &os)
	Print an object to an ostream. More...

virtual void	PrintHeader (ostream &os, vtkIndent indent)

virtual void	PrintTrailer (ostream &os, vtkIndent indent)

int	GetReferenceCount ()
	Return the current reference count of this object. More...

void	SetReferenceCount (int)
	Sets the reference count. More...

void	PrintRevisions (ostream &)
	Legacy. More...

Static Public Member Functions
static vtkTypeBool	IsTypeOf (const char *type)

static vtkConnectedPointsFilter *	SafeDownCast (vtkObjectBase *o)

static vtkConnectedPointsFilter *	New ()
	Construct with default extraction mode to extract the largest region. More...

Static Public Member Functions inherited from vtkPolyDataAlgorithm
static vtkPolyDataAlgorithm *	New ()

static vtkTypeBool	IsTypeOf (const char *type)

static vtkPolyDataAlgorithm *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkAlgorithm
static vtkAlgorithm *	New ()

static vtkTypeBool	IsTypeOf (const char *type)

static vtkAlgorithm *	SafeDownCast (vtkObjectBase *o)

static vtkInformationIntegerKey *	INPUT_IS_OPTIONAL ()
	Keys used to specify input port requirements. More...

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 ()
	This key tells the executive that a particular output port is capable of producing an arbitrary subextent of the whole extent. More...

static vtkInformationIntegerKey *	CAN_HANDLE_PIECE_REQUEST ()
	Key that tells the pipeline that a particular algorithm can or cannot handle piece request. More...

static void	SetDefaultExecutivePrototype (vtkExecutive *proto)
	If the DefaultExecutivePrototype is set, a copy of it is created in CreateDefaultExecutive() using NewInstance(). More...

Static Public Member Functions inherited from vtkObject
static vtkObject *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...

static void	BreakOnError ()
	This method is called when vtkErrorMacro executes. More...

static void	SetGlobalWarningDisplay (int val)
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

static void	GlobalWarningDisplayOn ()

static void	GlobalWarningDisplayOff ()

static int	GetGlobalWarningDisplay ()

Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool	IsTypeOf (const char *name)
	Return 1 if this class type is the same type of (or a subclass of) the named class. More...

static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkConnectedPointsFilter ()

	~vtkConnectedPointsFilter () override

int	RequestData (vtkInformation , vtkInformationVector , vtkInformationVector ) override
	This is called by the superclass. More...

int	FillInputPortInformation (int port, vtkInformation *info) override
	Fill the input port information objects for this algorithm. More...

void	TraverseAndMark (vtkPoints inPts, vtkDataArray inScalars, float normals, vtkIdType labels)

Protected Member Functions inherited from vtkPolyDataAlgorithm
	vtkPolyDataAlgorithm ()

	~vtkPolyDataAlgorithm () override

virtual int	RequestInformation (vtkInformation request, vtkInformationVector inputVector, vtkInformationVector outputVector)

virtual int	RequestUpdateExtent (vtkInformation , vtkInformationVector , vtkInformationVector )
	This is called by the superclass. More...

int	FillOutputPortInformation (int port, vtkInformation *info) override
	Fill the output port information objects for this algorithm. More...

Protected Member Functions inherited from vtkAlgorithm
	vtkAlgorithm ()

	~vtkAlgorithm () override

virtual void	SetNumberOfInputPorts (int n)
	Set the number of input ports used by the algorithm. More...

virtual void	SetNumberOfOutputPorts (int n)
	Set the number of output ports provided by the algorithm. More...

int	InputPortIndexInRange (int index, const char *action)

int	OutputPortIndexInRange (int index, const char *action)

int	GetInputArrayAssociation (int idx, vtkInformationVector **inputVector)
	Get the assocition of the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...

int	GetInputArrayAssociation (int idx, int connection, vtkInformationVector **inputVector)
	Filters that have multiple connections on one port can use this signature. More...

int	GetInputArrayAssociation (int idx, vtkDataObject *input)

vtkDataArray *	GetInputArrayToProcess (int idx, vtkInformationVector **inputVector)
	Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...

vtkDataArray *	GetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)

vtkDataArray *	GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
	Filters that have multiple connections on one port can use this signature. More...

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)
	Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
	Filters that have multiple connections on one port can use this signature. More...

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)
	This method takes in an index (as specified in SetInputArrayToProcess) and a pipeline information vector. More...

virtual vtkExecutive *	CreateDefaultExecutive ()
	Create a default executive. More...

virtual void	SetErrorCode (unsigned long)
	The error code contains a possible error that occurred while reading or writing the file. More...

void	ReportReferences (vtkGarbageCollector *) override

virtual void	SetNthInputConnection (int port, int index, vtkAlgorithmOutput *input)
	Replace the Nth connection on the given input port. More...

virtual void	SetNumberOfInputConnections (int port, int n)
	Set the number of input connections on the given input port. More...

void	SetInputDataInternal (int port, vtkDataObject *input)
	These methods are used by subclasses to implement methods to set data objects directly as input. More...

void	AddInputDataInternal (int port, vtkDataObject *input)

Protected Member Functions inherited from vtkObject
	vtkObject ()

	~vtkObject () override

void	RegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=nullptr)
	These methods allow a command to exclusively grab all events. More...

void	InternalReleaseFocus ()

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	CollectRevisions (ostream &)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
double	Radius

int	ExtractionMode

vtkIdList *	Seeds

vtkIdList *	SpecifiedRegionIds

double	ClosestPoint [3]

int	AlignedNormals

double	NormalAngle

double	NormalThreshold

int	ScalarConnectivity

double	ScalarRange [2]

vtkAbstractPointLocator *	Locator

Protected Attributes inherited from vtkAlgorithm
vtkInformation *	Information

unsigned long	ErrorCode

double	Progress

char *	ProgressText

vtkProgressObserver *	ProgressObserver

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t >	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Additional Inherited Members
Public Attributes inherited from vtkAlgorithm
vtkTypeBool	AbortExecute

Static Protected Member Functions inherited from vtkAlgorithm
static vtkInformationIntegerKey *	PORT_REQUIREMENTS_FILLED ()

Static Protected Attributes inherited from vtkAlgorithm
static vtkExecutive *	DefaultExecutivePrototype

Detailed Description

extract / segment points based on geometric connectivity

vtkConnectedPointsFilter is a filter that extracts and/or segments points from a point cloud based on geometric distance measures (e.g., proximity, normal alignments, etc.) and optional measures such as scalar range. The default operation is to segment the points into "connected" regions where the connection is determined by an appropriate distance measure. Each region is given a region id. Optionally, the filter can output the largest connected region of points; a particular region (via id specification); those regions that are seeded using a list of input point ids; or the region of points closest to a specified position.

The key parameter of this filter is the radius defining a sphere around each point which defines a local neighborhood: any other points in the local neighborhood are assumed connected to the point. Note that the radius is defined in absolute terms.

Other parameters are used to further qualify what it means to be a neighboring point. For example, scalar range and/or point normals can be used to further constrain the neighborhood. Also the extraction mode defines how the filter operates. By default, all regions are extracted but it is possible to extract particular regions; the region closest to a seed point; seeded regions; or the largest region found while processing. By default, all regions are extracted.

On output, all points are labeled with a region number. However note that the number of input and output points may not be the same: if not extracting all regions then the output size may be less than the input size.

See also: vtkPolyDataConnectivityFilter vtkConnectivityFilter

Definition at line 71 of file vtkConnectedPointsFilter.h.

Member Typedef Documentation

◆ Superclass

typedef vtkPolyDataAlgorithm vtkConnectedPointsFilter::Superclass

Definition at line 74 of file vtkConnectedPointsFilter.h.

Constructor & Destructor Documentation

◆ vtkConnectedPointsFilter()

vtkConnectedPointsFilter::vtkConnectedPointsFilter ( )

protected

◆ ~vtkConnectedPointsFilter()

vtkConnectedPointsFilter::~vtkConnectedPointsFilter ( )

overrideprotected

Member Function Documentation

◆ IsTypeOf()

static vtkTypeBool vtkConnectedPointsFilter::IsTypeOf ( const char * type )

static

◆ IsA()

virtual vtkTypeBool vtkConnectedPointsFilter::IsA ( const char * name )

virtual

Return 1 if this class is the same type of (or a subclass of) the named class.

Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkPolyDataAlgorithm.

◆ SafeDownCast()

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

static

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkConnectedPointsFilter::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkPolyDataAlgorithm.

◆ NewInstance()

vtkConnectedPointsFilter* vtkConnectedPointsFilter::NewInstance ( ) const

◆ PrintSelf()

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

overridevirtual

Methods invoked by print to print information about the object including superclasses.

Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkPolyDataAlgorithm.

◆ New()

static vtkConnectedPointsFilter* vtkConnectedPointsFilter::New ( )

static

Construct with default extraction mode to extract the largest region.

◆ SetRadius()

virtual void vtkConnectedPointsFilter::SetRadius ( double )

virtual

Set / get the radius variable specifying a local sphere used to define local point neighborhood.

◆ GetRadius()

virtual double vtkConnectedPointsFilter::GetRadius ( )

virtual

◆ SetExtractionMode()

virtual void vtkConnectedPointsFilter::SetExtractionMode ( int )

virtual

Control the extraction of connected regions.

◆ GetExtractionMode()

virtual int vtkConnectedPointsFilter::GetExtractionMode ( )

virtual

◆ SetExtractionModeToPointSeededRegions()

void vtkConnectedPointsFilter::SetExtractionModeToPointSeededRegions ( )

inline

Definition at line 98 of file vtkConnectedPointsFilter.h.

◆ SetExtractionModeToLargestRegion()

void vtkConnectedPointsFilter::SetExtractionModeToLargestRegion ( )

inline

Definition at line 102 of file vtkConnectedPointsFilter.h.

◆ SetExtractionModeToSpecifiedRegions()

void vtkConnectedPointsFilter::SetExtractionModeToSpecifiedRegions ( )

inline

Definition at line 103 of file vtkConnectedPointsFilter.h.

◆ SetExtractionModeToClosestPointRegion()

void vtkConnectedPointsFilter::SetExtractionModeToClosestPointRegion ( )

inline

Definition at line 107 of file vtkConnectedPointsFilter.h.

◆ SetExtractionModeToAllRegions()

void vtkConnectedPointsFilter::SetExtractionModeToAllRegions ( )

inline

Definition at line 111 of file vtkConnectedPointsFilter.h.

◆ GetExtractionModeAsString()

const char * vtkConnectedPointsFilter::GetExtractionModeAsString ( void )

inline

Return the method of extraction as a string.

Definition at line 269 of file vtkConnectedPointsFilter.h.

◆ SetClosestPoint() [1/2]

virtual void vtkConnectedPointsFilter::SetClosestPoint	(	double	,
		double	,
		double
	)

virtual

Use to specify x-y-z point coordinates when extracting the region closest to a specified point.

◆ SetClosestPoint() [2/2]

virtual void vtkConnectedPointsFilter::SetClosestPoint ( double [3] )

virtual

◆ GetClosestPoint() [1/2]

virtual double* vtkConnectedPointsFilter::GetClosestPoint ( )

virtual

◆ GetClosestPoint() [2/2]

virtual void vtkConnectedPointsFilter::GetClosestPoint ( double data[3] )

virtual

◆ InitializeSeedList()

void vtkConnectedPointsFilter::InitializeSeedList ( )

Initialize list of point ids ids used to seed regions.

◆ AddSeed()

void vtkConnectedPointsFilter::AddSeed ( vtkIdType id )

Add a non-negative point seed id.

Note: ids are 0-offset.

◆ DeleteSeed()

void vtkConnectedPointsFilter::DeleteSeed ( vtkIdType id )

Delete a point seed id.

Note: ids are 0-offset.

◆ InitializeSpecifiedRegionList()

void vtkConnectedPointsFilter::InitializeSpecifiedRegionList ( )

Initialize list of region ids to extract.

◆ AddSpecifiedRegion()

void vtkConnectedPointsFilter::AddSpecifiedRegion ( vtkIdType id )

Add a non-negative region id to extract.

Note: ids are 0-offset.

◆ DeleteSpecifiedRegion()

void vtkConnectedPointsFilter::DeleteSpecifiedRegion ( vtkIdType id )

Delete a region id to extract.

Note: ids are 0-offset.

◆ SetAlignedNormals()

virtual void vtkConnectedPointsFilter::SetAlignedNormals ( int )

virtual

Turn on/off connectivity based on point normal consistency.

If on, and point normals are defined, points are connected only if they satisfy other criterion (e.g., geometric proximity, scalar connectivity, etc.) AND the angle between normals is no greater than NormalAngle;

◆ GetAlignedNormals()

virtual int vtkConnectedPointsFilter::GetAlignedNormals ( )

virtual

◆ AlignedNormalsOn()

virtual void vtkConnectedPointsFilter::AlignedNormalsOn ( )

virtual

◆ AlignedNormalsOff()

virtual void vtkConnectedPointsFilter::AlignedNormalsOff ( )

virtual

◆ SetNormalAngle()

virtual void vtkConnectedPointsFilter::SetNormalAngle ( double )

virtual

Specify a threshold for normal angles.

If AlignedNormalsOn is set, then points are connected if the angle between their normals is within this angle threshold (expressed in degress).

◆ GetNormalAngle()

virtual double vtkConnectedPointsFilter::GetNormalAngle ( )

virtual

◆ SetScalarConnectivity()

virtual void vtkConnectedPointsFilter::SetScalarConnectivity ( int )

virtual

Turn on/off connectivity based on scalar value.

If on, points are connected only if they satisfy the various geometric criterion AND one of the points scalar values falls in the scalar range specified.

◆ GetScalarConnectivity()

virtual int vtkConnectedPointsFilter::GetScalarConnectivity ( )

virtual

◆ ScalarConnectivityOn()

virtual void vtkConnectedPointsFilter::ScalarConnectivityOn ( )

virtual

◆ ScalarConnectivityOff()

virtual void vtkConnectedPointsFilter::ScalarConnectivityOff ( )

virtual

◆ SetScalarRange() [1/2]

virtual void vtkConnectedPointsFilter::SetScalarRange	(	double	,
		double
	)

virtual

Set the scalar range to use to extract points based on scalar connectivity.

◆ SetScalarRange() [2/2]

void vtkConnectedPointsFilter::SetScalarRange ( double [2] )

◆ GetScalarRange() [1/3]

virtual double* vtkConnectedPointsFilter::GetScalarRange ( )

virtual

◆ GetScalarRange() [2/3]

virtual void vtkConnectedPointsFilter::GetScalarRange	(	double &	,
		double &
	)

virtual

◆ GetScalarRange() [3/3]

virtual void vtkConnectedPointsFilter::GetScalarRange ( double [2] )

virtual

◆ GetNumberOfExtractedRegions()

int vtkConnectedPointsFilter::GetNumberOfExtractedRegions ( )

Obtain the number of connected regions.

The return value is valid only after the filter has executed.

◆ SetLocator()

void vtkConnectedPointsFilter::SetLocator ( vtkAbstractPointLocator * locator )

Specify a point locator.

By default a vtkStaticPointLocator is used. The locator performs efficient searches to locate points around a sample point.

◆ GetLocator()

virtual vtkAbstractPointLocator* vtkConnectedPointsFilter::GetLocator ( )

virtual

◆ RequestData()

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

overrideprotectedvirtual

This is called by the superclass.

This is the method you should override.

Reimplemented from vtkPolyDataAlgorithm.

◆ FillInputPortInformation()

int vtkConnectedPointsFilter::FillInputPortInformation	(	int	port,
		vtkInformation *	info
	)

overrideprotectedvirtual

Fill the input port information objects for this algorithm.

This is invoked by the first call to GetInputPortInformation for each port so subclasses can specify what they can handle.

Reimplemented from vtkPolyDataAlgorithm.

◆ TraverseAndMark()

void vtkConnectedPointsFilter::TraverseAndMark	(	vtkPoints *	inPts,
		vtkDataArray *	inScalars,
		float *	normals,
		vtkIdType *	labels
	)

protected

Member Data Documentation

◆ Radius

double vtkConnectedPointsFilter::Radius

protected

Definition at line 220 of file vtkConnectedPointsFilter.h.

◆ ExtractionMode

int vtkConnectedPointsFilter::ExtractionMode

protected

Definition at line 223 of file vtkConnectedPointsFilter.h.

◆ Seeds

vtkIdList* vtkConnectedPointsFilter::Seeds

protected

Definition at line 226 of file vtkConnectedPointsFilter.h.

◆ SpecifiedRegionIds

vtkIdList* vtkConnectedPointsFilter::SpecifiedRegionIds

protected

Definition at line 229 of file vtkConnectedPointsFilter.h.

◆ ClosestPoint

double vtkConnectedPointsFilter::ClosestPoint[3]

protected

Definition at line 232 of file vtkConnectedPointsFilter.h.

◆ AlignedNormals

int vtkConnectedPointsFilter::AlignedNormals

protected

Definition at line 235 of file vtkConnectedPointsFilter.h.

◆ NormalAngle

double vtkConnectedPointsFilter::NormalAngle

protected

Definition at line 236 of file vtkConnectedPointsFilter.h.

◆ NormalThreshold

double vtkConnectedPointsFilter::NormalThreshold

protected

Definition at line 237 of file vtkConnectedPointsFilter.h.

◆ ScalarConnectivity

int vtkConnectedPointsFilter::ScalarConnectivity

protected

Definition at line 240 of file vtkConnectedPointsFilter.h.

◆ ScalarRange

double vtkConnectedPointsFilter::ScalarRange[2]

protected

Definition at line 241 of file vtkConnectedPointsFilter.h.

◆ Locator

vtkAbstractPointLocator* vtkConnectedPointsFilter::Locator

protected

Definition at line 244 of file vtkConnectedPointsFilter.h.

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

dox/Filters/Points/vtkConnectedPointsFilter.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Superclass

Constructor & Destructor Documentation

◆ vtkConnectedPointsFilter()

◆ ~vtkConnectedPointsFilter()

Member Function Documentation

◆ IsTypeOf()

◆ IsA()

◆ SafeDownCast()

◆ NewInstanceInternal()

◆ NewInstance()

◆ PrintSelf()

◆ New()

◆ SetRadius()

◆ GetRadius()

◆ SetExtractionMode()

◆ GetExtractionMode()

◆ SetExtractionModeToPointSeededRegions()

◆ SetExtractionModeToLargestRegion()

◆ SetExtractionModeToSpecifiedRegions()

◆ SetExtractionModeToClosestPointRegion()

◆ SetExtractionModeToAllRegions()

◆ GetExtractionModeAsString()

◆ SetClosestPoint() [1/2]

◆ SetClosestPoint() [2/2]

◆ GetClosestPoint() [1/2]

◆ GetClosestPoint() [2/2]

◆ InitializeSeedList()

◆ AddSeed()

◆ DeleteSeed()

◆ InitializeSpecifiedRegionList()

◆ AddSpecifiedRegion()

◆ DeleteSpecifiedRegion()

◆ SetAlignedNormals()

◆ GetAlignedNormals()

◆ AlignedNormalsOn()

◆ AlignedNormalsOff()

◆ SetNormalAngle()

◆ GetNormalAngle()

◆ SetScalarConnectivity()

◆ GetScalarConnectivity()

◆ ScalarConnectivityOn()

◆ ScalarConnectivityOff()

◆ SetScalarRange() [1/2]

◆ SetScalarRange() [2/2]

◆ GetScalarRange() [1/3]

◆ GetScalarRange() [2/3]

◆ GetScalarRange() [3/3]

◆ GetNumberOfExtractedRegions()

◆ SetLocator()

◆ GetLocator()

◆ RequestData()

◆ FillInputPortInformation()

◆ TraverseAndMark()

Member Data Documentation

◆ Radius

◆ ExtractionMode

◆ Seeds

◆ SpecifiedRegionIds

◆ ClosestPoint

◆ AlignedNormals

◆ NormalAngle

◆ NormalThreshold

◆ ScalarConnectivity

◆ ScalarRange

◆ Locator