extract closed loops (polygons) from lines and polylines More...

#include <vtkContourLoopExtraction.h>

Inheritance diagram for vtkContourLoopExtraction:

Collaboration diagram for vtkContourLoopExtraction:

Public Member Functions

virtual void	SetLoopClosure (int)
	Specify whether to close loops or not.

virtual int	GetLoopClosure ()
	Specify whether to close loops or not.

void	SetLoopClosureToOff ()
	Specify whether to close loops or not.

void	SetLoopClosureToBoundary ()
	Specify whether to close loops or not.

void	SetLoopClosureToAll ()
	Specify whether to close loops or not.

const char *	GetLoopClosureAsString ()
	Specify whether to close loops or not.


virtual void	SetScalarThresholding (bool)
	Turn on/off the extraction of loops based on scalar thresholding.

virtual bool	GetScalarThresholding ()
	Turn on/off the extraction of loops based on scalar thresholding.

virtual void	ScalarThresholdingOn ()
	Turn on/off the extraction of loops based on scalar thresholding.

virtual void	ScalarThresholdingOff ()
	Turn on/off the extraction of loops based on scalar thresholding.


virtual void	SetScalarRange (double, double)
	Set the scalar range to use to extract loop based on scalar thresholding.

void	SetScalarRange (double[2])
	Set the scalar range to use to extract loop based on scalar thresholding.

virtual double *	GetScalarRange ()
	Set the scalar range to use to extract loop based on scalar thresholding.

virtual void	GetScalarRange (double &, double &)
	Set the scalar range to use to extract loop based on scalar thresholding.

virtual void	GetScalarRange (double[2])
	Set the scalar range to use to extract loop based on scalar thresholding.


virtual void	SetNormal (double, double, double)
	Set the normal vector used to orient the algorithm (controlling turns around the loop).

virtual void	SetNormal (double[3])
	Set the normal vector used to orient the algorithm (controlling turns around the loop).

virtual double *	GetNormal ()
	Set the normal vector used to orient the algorithm (controlling turns around the loop).

virtual void	GetNormal (double &, double &, double &)
	Set the normal vector used to orient the algorithm (controlling turns around the loop).

virtual void	GetNormal (double[3])
	Set the normal vector used to orient the algorithm (controlling turns around the loop).


virtual void	SetOutputMode (int)
	Specify the form of the output.

virtual int	GetOutputMode ()
	Specify the form of the output.

void	SetOutputModeToPolygons ()
	Specify the form of the output.

void	SetOutputModeToPolylines ()
	Specify the form of the output.

void	SetOutputModeToBoth ()
	Specify the form of the output.

const char *	GetOutputModeAsString ()
	Specify the form of the output.

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

vtkPolyDataAlgorithm *	NewInstance () const

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

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

vtkDataObject *	GetInput ()

vtkDataObject *	GetInput (int port)

vtkPolyData *	GetPolyDataInput (int port)

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

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

virtual void	SetOutput (vtkDataObject *d)
	Get the output data object for a port on this algorithm.

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

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

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

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

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

vtkAlgorithm *	NewInstance () const

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

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

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

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

virtual vtkTypeBool	ProcessRequest (vtkInformation request, vtkInformationVector inInfo, vtkInformationVector outInfo)
	Upstream/Downstream requests form the generalized interface through which executives invoke a algorithm's functionality.

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

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.

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.

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

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

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

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

void	SetProgress (double)
	`SetProgress` is deprecated.

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

virtual void	SetInputArrayToProcess (int idx, int port, int connection, const char fieldAssociation, const char attributeTypeorName)
	String based versions of SetInputArrayToProcess().

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

void	RemoveAllInputs ()
	Remove all the input data.

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

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

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

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

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

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

virtual void	SetInputDataObject (vtkDataObject *data)

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

virtual void	AddInputDataObject (vtkDataObject *data)

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

vtkAlgorithmOutput *	GetOutputPort ()

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

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

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

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.

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

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

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

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

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

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

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

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).

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

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.

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

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.

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

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

virtual void	PropagateUpdateExtent ()
	Propagate meta-data upstream.

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

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

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

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

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

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

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

virtual vtkTypeBool	GetAbortExecute ()
	Set/Get the AbortExecute flag for the process object.

virtual void	AbortExecuteOn ()
	Set/Get the AbortExecute flag for the process object.

virtual void	AbortExecuteOff ()
	Set/Get the AbortExecute flag for the process object.

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

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

virtual double	GetProgressShift ()
	Specify the shift and scale values to use to apply to the progress amount when `UpdateProgress` is called.

virtual double	GetProgressScale ()
	Specify the shift and scale values to use to apply to the progress amount when `UpdateProgress` is called.

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

virtual char *	GetProgressText ()
	Set the current text message associated with the progress state.

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

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

virtual void	SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, int fieldAttributeType)
	Set the input data arrays that this algorithm will process.

virtual void	SetInputArrayToProcess (int idx, vtkInformation *info)
	Set the input data arrays that this algorithm will process.

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

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

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

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

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

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

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

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

void	ReleaseDataFlagOn ()
	Turn release data flag on or off for all output ports.

void	ReleaseDataFlagOff ()
	Turn release data flag on or off for all output ports.

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.

int	UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType)
	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.

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

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

void	GetUpdateExtent (int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)
	These functions return the update extent for output ports that use 3D extents.

void	GetUpdateExtent (int port, int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)
	These functions return the update extent for output ports that use 3D extents.

void	GetUpdateExtent (int extent[6])
	These functions return the update extent for output ports that use 3D extents.

void	GetUpdateExtent (int port, int extent[6])
	These functions return the update extent for output ports that use 3D extents.

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

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

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

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

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

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

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

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

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

virtual void	DebugOn ()
	Turn debugging output on.

virtual void	DebugOff ()
	Turn debugging output off.

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

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

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

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

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

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)

int	InvokeEvent (unsigned long event)

int	InvokeEvent (const char *event)

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

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

vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObservers (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkTypeBool	HasObserver (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

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.

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

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.

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

int	InvokeEvent (const char event, void callData)
	This method invokes an event and return whether the event was aborted or not.

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string.

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

virtual vtkIdType	GetNumberOfGenerationsFromBase (const char *name)
	Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).

virtual void	Delete ()
	Delete a VTK object.

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

void	InitializeObjectBase ()

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

virtual void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object).

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

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

void	SetReferenceCount (int)
	Sets the reference count.

bool	GetIsInMemkind () const
	A local state flag that remembers whether this object lives in the normal or extended memory space.

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

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

Protected Member Functions
	vtkContourLoopExtraction ()

	~vtkContourLoopExtraction () override

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

Protected Member Functions inherited from vtkPolyDataAlgorithm
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkPolyDataAlgorithm ()

	~vtkPolyDataAlgorithm () override

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

virtual int	RequestData (vtkInformation request, vtkInformationVector inputVector, vtkInformationVector outputVector)
	This is called by the superclass.

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

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

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

Protected Member Functions inherited from vtkAlgorithm
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkAlgorithm ()

	~vtkAlgorithm () override

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

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

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

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

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.

vtkInformation *	GetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector)
	This method takes in an index (as specified in SetInputArrayToProcess) and a pipeline information vector.

virtual vtkExecutive *	CreateDefaultExecutive ()
	Create a default executive.

void	ReportReferences (vtkGarbageCollector *) override

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

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

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

void	AddInputDataInternal (int port, vtkDataObject *input)

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

int	GetInputArrayAssociation (int idx, vtkDataObject *input)
	Filters that have multiple connections on one port can use this signature.

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.

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

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

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

vtkDataArray *	GetInputArrayToProcess (int idx, vtkDataObject *input)
	Filters that have multiple connections on one port can use this signature.

vtkDataArray *	GetInputArrayToProcess (int idx, vtkDataObject *input, int &association)
	Filters that have multiple connections on one port can use this signature.

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.

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)
	Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.

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

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

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkDataObject *input)
	Filters that have multiple connections on one port can use this signature.

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association)
	Filters that have multiple connections on one port can use this signature.

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

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.

void	InternalReleaseFocus ()
	These methods allow a command to exclusively grab all events.

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	RegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
int	LoopClosure

bool	ScalarThresholding

double	ScalarRange [2]

double	Normal [3]

int	OutputMode

Protected Attributes inherited from vtkAlgorithm
vtkInformation *	Information

double	Progress

char *	ProgressText

vtkProgressObserver *	ProgressObserver

unsigned long	ErrorCode
	The error code contains a possible error that occurred while reading or writing the file.

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

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

vtkWeakPointerBase **	WeakPointers

typedef vtkPolyDataAlgorithm	Superclass
	Standard methods to instantiate, print and provide type information.

static vtkContourLoopExtraction *	New ()
	Standard methods to instantiate, print and provide type information.

static vtkTypeBool	IsTypeOf (const char *type)
	Standard methods to instantiate, print and provide type information.

static vtkContourLoopExtraction *	SafeDownCast (vtkObjectBase *o)
	Standard methods to instantiate, print and provide type information.

virtual vtkTypeBool	IsA (const char *type)
	Standard methods to instantiate, print and provide type information.

vtkContourLoopExtraction *	NewInstance () const
	Standard methods to instantiate, print and provide type information.

void	PrintSelf (ostream &os, vtkIndent indent) override
	Standard methods to instantiate, print and provide type information.

virtual vtkObjectBase *	NewInstanceInternal () const
	Standard methods to instantiate, print and provide type information.

Additional Inherited Members
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

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.

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.

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

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

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.

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

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

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

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

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

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.

static vtkIdType	GetNumberOfGenerationsFromBaseType (const char *name)
	Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).

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

static void	SetMemkindDirectory (const char *directoryname)
	The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.

static bool	GetUsingMemkind ()
	A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space.

Public Attributes inherited from vtkAlgorithm
vtkTypeBool	AbortExecute

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

Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()

static vtkReallocingFunction	GetCurrentReallocFunction ()

static vtkFreeingFunction	GetCurrentFreeFunction ()

static vtkFreeingFunction	GetAlternateFreeFunction ()

Static Protected Attributes inherited from vtkAlgorithm
static vtkExecutive *	DefaultExecutivePrototype

Detailed Description

extract closed loops (polygons) from lines and polylines

This filter takes an input consisting of lines and polylines and constructs polygons (i.e., closed loops) from them. It combines some of the capability of connectivity filters and the line stripper to produce manifold loops that are suitable for geometric operations. For example, the vtkCookieCutter works well with this filter.

Note that the input structure for this filter consists of points and line or polyline cells. All other topological types (verts, polygons, triangle strips) are ignored. The output of this filter is by default manifold polygons. Note however, that optionally polyline loops may also be output if requested.

Warning: Although the loops are constructed in 3-space, a normal vector must be supplied to help choose a turn direction when multiple choices are possible. By default the normal vector is n={0,0,1} but may be user specified. Note also that some filters require that the loops are located in the z=constant or z=0 plane. Hence a transform filter of some sort may be necesssary to project the loops to a plane.; Note that lines that do not close in on themselves can be optionally forced closed. This occurs when for example, 2D contours end and begin at the boundaries of data. By forcing closure, the last point is joined to the first point (with boundary points possibly added). Note that there are different closure modes: 1) do not close (and hence reject the polygon); 2) close along the dataset boundaries (i.e., the bounding box of a dataset used to generate the contour lines); and 3) close all open loops by connectiong the first and last point. If Option #2 is chosen, only loops that start and end on either a horizontal or vertical boundary are closed.; Scalar thresholding can be enabled. If enabled, then only those loops with *any" scalar point data within the thresholded range are extracted.; Any detached lines forming degenerate loops of defined by two points or less are discarded. Non-manifold junctions are broken into separate, independent loops.; Boundary closure only works if the end points are both on a vertical boundary or horizontal boundary. Otherwise new points would have to be added which this filter does not (currently) do.

See also: vtkCookieCutter vtkFlyingEdges2D vtkMarchingSquares vtkFeatureEdges vtkConnectivityFilter vtkPolyDataConnectivityFilter vtkDiscreteFlyingEdges2D vtkStripper

Definition at line 84 of file vtkContourLoopExtraction.h.

Member Typedef Documentation

◆ Superclass

typedef vtkPolyDataAlgorithm vtkContourLoopExtraction::Superclass

Standard methods to instantiate, print and provide type information.

Definition at line 92 of file vtkContourLoopExtraction.h.

Constructor & Destructor Documentation

◆ vtkContourLoopExtraction()

vtkContourLoopExtraction::vtkContourLoopExtraction ( )

protected

◆ ~vtkContourLoopExtraction()

vtkContourLoopExtraction::~vtkContourLoopExtraction ( )

overrideprotected

Member Function Documentation

◆ New()

static vtkContourLoopExtraction * vtkContourLoopExtraction::New ( )

static

Standard methods to instantiate, print and provide type information.

◆ IsTypeOf()

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

static

Standard methods to instantiate, print and provide type information.

◆ IsA()

virtual vtkTypeBool vtkContourLoopExtraction::IsA ( const char * type )

virtual

Standard methods to instantiate, print and provide type information.

Reimplemented from vtkPolyDataAlgorithm.

◆ SafeDownCast()

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

static

Standard methods to instantiate, print and provide type information.

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkContourLoopExtraction::NewInstanceInternal ( ) const

protectedvirtual

Standard methods to instantiate, print and provide type information.

Reimplemented from vtkPolyDataAlgorithm.

◆ NewInstance()

vtkContourLoopExtraction * vtkContourLoopExtraction::NewInstance ( ) const

Standard methods to instantiate, print and provide type information.

◆ PrintSelf()

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

overridevirtual

Standard methods to instantiate, print and provide type information.

Reimplemented from vtkPolyDataAlgorithm.

◆ SetLoopClosure()

virtual void vtkContourLoopExtraction::SetLoopClosure ( int )

virtual

Specify whether to close loops or not.

All non-closed loops can be rejected; boundary loops (end points lie on vertical or horizontal porions of the boundary) can be closed (default); or all loops can be forced closed by connecting first and last points.

◆ GetLoopClosure()

virtual int vtkContourLoopExtraction::GetLoopClosure ( )

virtual

Specify whether to close loops or not.

All non-closed loops can be rejected; boundary loops (end points lie on vertical or horizontal porions of the boundary) can be closed (default); or all loops can be forced closed by connecting first and last points.

◆ SetLoopClosureToOff()

void vtkContourLoopExtraction::SetLoopClosureToOff ( )

inline

Specify whether to close loops or not.

All non-closed loops can be rejected; boundary loops (end points lie on vertical or horizontal porions of the boundary) can be closed (default); or all loops can be forced closed by connecting first and last points.

Definition at line 105 of file vtkContourLoopExtraction.h.

◆ SetLoopClosureToBoundary()

void vtkContourLoopExtraction::SetLoopClosureToBoundary ( )

inline

Specify whether to close loops or not.

All non-closed loops can be rejected; boundary loops (end points lie on vertical or horizontal porions of the boundary) can be closed (default); or all loops can be forced closed by connecting first and last points.

Definition at line 106 of file vtkContourLoopExtraction.h.

◆ SetLoopClosureToAll()

void vtkContourLoopExtraction::SetLoopClosureToAll ( )

inline

Specify whether to close loops or not.

All non-closed loops can be rejected; boundary loops (end points lie on vertical or horizontal porions of the boundary) can be closed (default); or all loops can be forced closed by connecting first and last points.

Definition at line 107 of file vtkContourLoopExtraction.h.

◆ GetLoopClosureAsString()

const char * vtkContourLoopExtraction::GetLoopClosureAsString ( )

Specify whether to close loops or not.

All non-closed loops can be rejected; boundary loops (end points lie on vertical or horizontal porions of the boundary) can be closed (default); or all loops can be forced closed by connecting first and last points.

◆ SetScalarThresholding()

virtual void vtkContourLoopExtraction::SetScalarThresholding ( bool )

virtual

Turn on/off the extraction of loops based on scalar thresholding.

Loops with scalar values in a specified range can be extracted. If no scalars are available from the input than this data member is ignored.

◆ GetScalarThresholding()

virtual bool vtkContourLoopExtraction::GetScalarThresholding ( )

virtual

Turn on/off the extraction of loops based on scalar thresholding.

Loops with scalar values in a specified range can be extracted. If no scalars are available from the input than this data member is ignored.

◆ ScalarThresholdingOn()

virtual void vtkContourLoopExtraction::ScalarThresholdingOn ( )

virtual

Turn on/off the extraction of loops based on scalar thresholding.

Loops with scalar values in a specified range can be extracted. If no scalars are available from the input than this data member is ignored.

◆ ScalarThresholdingOff()

virtual void vtkContourLoopExtraction::ScalarThresholdingOff ( )

virtual

Turn on/off the extraction of loops based on scalar thresholding.

Loops with scalar values in a specified range can be extracted. If no scalars are available from the input than this data member is ignored.

◆ SetScalarRange() [1/2]

virtual void vtkContourLoopExtraction::SetScalarRange	(	double	,
		double
	)

virtual

Set the scalar range to use to extract loop based on scalar thresholding.

If any scalar, point data, in the loop falls into the scalar range given, then the loop is extracted.

◆ SetScalarRange() [2/2]

void vtkContourLoopExtraction::SetScalarRange ( double [2] )

Set the scalar range to use to extract loop based on scalar thresholding.

If any scalar, point data, in the loop falls into the scalar range given, then the loop is extracted.

◆ GetScalarRange() [1/3]

virtual double * vtkContourLoopExtraction::GetScalarRange ( )

virtual

Set the scalar range to use to extract loop based on scalar thresholding.

If any scalar, point data, in the loop falls into the scalar range given, then the loop is extracted.

◆ GetScalarRange() [2/3]

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

virtual

Set the scalar range to use to extract loop based on scalar thresholding.

If any scalar, point data, in the loop falls into the scalar range given, then the loop is extracted.

◆ GetScalarRange() [3/3]

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

virtual

Set the scalar range to use to extract loop based on scalar thresholding.

If any scalar, point data, in the loop falls into the scalar range given, then the loop is extracted.

◆ SetNormal() [1/2]

virtual void vtkContourLoopExtraction::SetNormal	(	double	,
		double	,
		double
	)

virtual

Set the normal vector used to orient the algorithm (controlling turns around the loop).

By default the normal points in the +z direction.

◆ SetNormal() [2/2]

virtual void vtkContourLoopExtraction::SetNormal ( double [3] )

virtual

Set the normal vector used to orient the algorithm (controlling turns around the loop).

By default the normal points in the +z direction.

◆ GetNormal() [1/3]

virtual double * vtkContourLoopExtraction::GetNormal ( )

virtual

Set the normal vector used to orient the algorithm (controlling turns around the loop).

By default the normal points in the +z direction.

◆ GetNormal() [2/3]

virtual void vtkContourLoopExtraction::GetNormal	(	double &	,
		double &	,
		double &
	)

virtual

Set the normal vector used to orient the algorithm (controlling turns around the loop).

By default the normal points in the +z direction.

◆ GetNormal() [3/3]

virtual void vtkContourLoopExtraction::GetNormal ( double [3] )

virtual

Set the normal vector used to orient the algorithm (controlling turns around the loop).

By default the normal points in the +z direction.

◆ SetOutputMode()

virtual void vtkContourLoopExtraction::SetOutputMode ( int )

virtual

Specify the form of the output.

Polygons can be output (default); polylines can be output (the first and last point is repeated); or both can be output.

◆ GetOutputMode()

virtual int vtkContourLoopExtraction::GetOutputMode ( )

virtual

Specify the form of the output.

Polygons can be output (default); polylines can be output (the first and last point is repeated); or both can be output.

◆ SetOutputModeToPolygons()

void vtkContourLoopExtraction::SetOutputModeToPolygons ( )

inline

Specify the form of the output.

Polygons can be output (default); polylines can be output (the first and last point is repeated); or both can be output.

Definition at line 149 of file vtkContourLoopExtraction.h.

◆ SetOutputModeToPolylines()

void vtkContourLoopExtraction::SetOutputModeToPolylines ( )

inline

Specify the form of the output.

Polygons can be output (default); polylines can be output (the first and last point is repeated); or both can be output.

Definition at line 150 of file vtkContourLoopExtraction.h.

◆ SetOutputModeToBoth()

void vtkContourLoopExtraction::SetOutputModeToBoth ( )

inline

Specify the form of the output.

Polygons can be output (default); polylines can be output (the first and last point is repeated); or both can be output.

Definition at line 151 of file vtkContourLoopExtraction.h.

◆ GetOutputModeAsString()

const char * vtkContourLoopExtraction::GetOutputModeAsString ( )

Specify the form of the output.

Polygons can be output (default); polylines can be output (the first and last point is repeated); or both can be output.

◆ RequestData()

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

overrideprotectedvirtual

This is called by the superclass.

This is the method you should override.

Reimplemented from vtkPolyDataAlgorithm.

Member Data Documentation

◆ LoopClosure

int vtkContourLoopExtraction::LoopClosure

protected

Definition at line 159 of file vtkContourLoopExtraction.h.

◆ ScalarThresholding

bool vtkContourLoopExtraction::ScalarThresholding

protected

Definition at line 160 of file vtkContourLoopExtraction.h.

◆ ScalarRange

double vtkContourLoopExtraction::ScalarRange[2]

protected

Definition at line 161 of file vtkContourLoopExtraction.h.

◆ Normal

double vtkContourLoopExtraction::Normal[3]

protected

Definition at line 162 of file vtkContourLoopExtraction.h.

◆ OutputMode

int vtkContourLoopExtraction::OutputMode

protected

Definition at line 163 of file vtkContourLoopExtraction.h.

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

Filters/Modeling/vtkContourLoopExtraction.h

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Superclass

Constructor & Destructor Documentation

◆ vtkContourLoopExtraction()

◆ ~vtkContourLoopExtraction()

Member Function Documentation

◆ New()

◆ IsTypeOf()

◆ IsA()

◆ SafeDownCast()

◆ NewInstanceInternal()

◆ NewInstance()

◆ PrintSelf()

◆ SetLoopClosure()

◆ GetLoopClosure()

◆ SetLoopClosureToOff()

◆ SetLoopClosureToBoundary()

◆ SetLoopClosureToAll()

◆ GetLoopClosureAsString()

◆ SetScalarThresholding()

◆ GetScalarThresholding()

◆ ScalarThresholdingOn()

◆ ScalarThresholdingOff()

◆ SetScalarRange() [1/2]

◆ SetScalarRange() [2/2]

◆ GetScalarRange() [1/3]

◆ GetScalarRange() [2/3]

◆ GetScalarRange() [3/3]

◆ SetNormal() [1/2]

◆ SetNormal() [2/2]

◆ GetNormal() [1/3]

◆ GetNormal() [2/3]

◆ GetNormal() [3/3]

◆ SetOutputMode()

◆ GetOutputMode()

◆ SetOutputModeToPolygons()

◆ SetOutputModeToPolylines()

◆ SetOutputModeToBoth()

◆ GetOutputModeAsString()

◆ RequestData()

Member Data Documentation

◆ LoopClosure

◆ ScalarThresholding

◆ ScalarRange

◆ Normal

◆ OutputMode