an abstract superclass for 3D widgets More...

#include <vtk3DWidget.h>

Inheritance diagram for vtk3DWidget:

Collaboration diagram for vtk3DWidget:

Public Types
typedef vtkInteractorObserver	Superclass

Public Types inherited from vtkInteractorObserver
typedef vtkObject	Superclass

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

vtk3DWidget *	NewInstance () const

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


virtual void	PlaceWidget (double bounds[6])=0
	This method is used to initially place the widget. More...

virtual void	PlaceWidget ()
	This method is used to initially place the widget. More...

virtual void	PlaceWidget (double xmin, double xmax, double ymin, double ymax, double zmin, double zmax)
	This method is used to initially place the widget. More...


virtual void	SetProp3D (vtkProp3D *)
	Specify a vtkProp3D around which to place the widget. More...

virtual vtkProp3D *	GetProp3D ()
	Specify a vtkProp3D around which to place the widget. More...


virtual void	SetInputData (vtkDataSet *)
	Specify the input dataset. More...

virtual void	SetInputConnection (vtkAlgorithmOutput *)
	Specify the input dataset. More...

virtual vtkDataSet *	GetInput ()
	Specify the input dataset. More...


virtual void	SetPlaceFactor (double)
	Set/Get a factor representing the scaling of the widget upon placement (via the PlaceWidget() method). More...

virtual double	GetPlaceFactor ()
	Set/Get a factor representing the scaling of the widget upon placement (via the PlaceWidget() method). More...


virtual void	SetHandleSize (double)
	Set/Get the factor that controls the size of the handles that appear as part of the widget. More...

virtual double	GetHandleSize ()
	Set/Get the factor that controls the size of the handles that appear as part of the widget. More...

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

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

virtual void	SetEnabled (int)
	Methods for turning the interactor observer on and off, and determining its state. More...

int	GetEnabled ()

void	EnabledOn ()

void	EnabledOff ()

void	On ()

void	Off ()

virtual void	OnChar ()
	Sets up the keypress-i event. More...

virtual void	SetInteractor (vtkRenderWindowInteractor *iren)
	This method is used to associate the widget with the render window interactor. More...

virtual vtkRenderWindowInteractor *	GetInteractor ()
	This method is used to associate the widget with the render window interactor. More...

virtual void	SetPriority (float)
	Set/Get the priority at which events are processed. More...

virtual float	GetPriority ()
	Set/Get the priority at which events are processed. More...

virtual void	PickingManagedOn ()
	Enable/Disable the use of a manager to process the picking. More...

virtual void	PickingManagedOff ()
	Enable/Disable the use of a manager to process the picking. More...

virtual void	SetPickingManaged (bool)
	Enable/Disable the use of a manager to process the picking. More...

virtual bool	GetPickingManaged ()
	Enable/Disable the use of a manager to process the picking. More...

virtual void	SetKeyPressActivation (int)
	Enable/Disable of the use of a keypress to turn on and off the interactor observer. More...

virtual int	GetKeyPressActivation ()
	Enable/Disable of the use of a keypress to turn on and off the interactor observer. More...

virtual void	KeyPressActivationOn ()
	Enable/Disable of the use of a keypress to turn on and off the interactor observer. More...

virtual void	KeyPressActivationOff ()
	Enable/Disable of the use of a keypress to turn on and off the interactor observer. More...

virtual void	SetKeyPressActivationValue (char)
	Specify which key press value to use to activate the interactor observer (if key press activation is enabled). More...

virtual char	GetKeyPressActivationValue ()
	Specify which key press value to use to activate the interactor observer (if key press activation is enabled). More...

virtual vtkRenderer *	GetDefaultRenderer ()
	Set/Get the default renderer to use when activating the interactor observer. More...

virtual void	SetDefaultRenderer (vtkRenderer *)
	Set/Get the default renderer to use when activating the interactor observer. More...

virtual vtkRenderer *	GetCurrentRenderer ()
	Set/Get the current renderer. More...

virtual void	SetCurrentRenderer (vtkRenderer *)
	Set/Get the current renderer. More...

void	GrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=NULL)
	These methods enable an interactor observer to exclusively grab all events invoked by its associated vtkRenderWindowInteractor. More...

void	ReleaseFocus ()
	These methods enable an interactor observer to exclusively grab all events invoked by its associated vtkRenderWindowInteractor. More...

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...

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

int	HasObserver (unsigned long event)

int	HasObserver (const char *event)

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. More...

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

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

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

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

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

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

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

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)
	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, 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)
	This method invokes an event and return whether the event was aborted or not. More...

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

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

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

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

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

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

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

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

static vtk3DWidget *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkInteractorObserver
static int	IsTypeOf (const char *type)

static vtkInteractorObserver *	SafeDownCast (vtkObjectBase *o)

static void	ComputeDisplayToWorld (vtkRenderer *ren, double x, double y, double z, double worldPt[4])
	Convenience methods for outside classes. More...

static void	ComputeWorldToDisplay (vtkRenderer *ren, double x, double y, double z, double displayPt[3])
	Convenience methods for outside classes. 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 ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

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

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

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

	vtk3DWidget ()

	~vtk3DWidget ()

void	AdjustBounds (double bounds[6], double newBounds[6], double center[3])

double	SizeHandles (double factor)

virtual void	SizeHandles ()

void	UpdateInput ()

Protected Member Functions inherited from vtkInteractorObserver
	vtkInteractorObserver ()

	~vtkInteractorObserver ()

virtual void	RegisterPickers ()
	Register internal Pickers in the Picking Manager. More...

void	UnRegisterPickers ()
	Unregister internal pickers from the Picking Manager. More...

virtual void	PickersModified ()
	Update the pickers registered in the Picking Manager when pickers are modified. More...

vtkPickingManager *	GetPickingManager ()
	Return the picking manager associated on the context on which the observer currently belong. More...

vtkAssemblyPath *	GetAssemblyPath (double X, double Y, double Z, vtkAbstractPropPicker *picker)
	Proceed to a pick, whether through the PickingManager if the picking is managed or directly using the picker, and return the assembly path. More...

int	RequestCursorShape (int requestedShape)

virtual void	StartInteraction ()
	Utility routines used to start and end interaction. More...

virtual void	EndInteraction ()
	Utility routines used to start and end interaction. More...

void	ComputeDisplayToWorld (double x, double y, double z, double worldPt[4])
	Helper method for subclasses. More...

void	ComputeWorldToDisplay (double x, double y, double z, double displayPt[3])
	Helper method for subclasses. More...

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=NULL)
	These methods allow a command to exclusively grab all events. More...

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

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	CollectRevisions (ostream &)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
vtkProp3D *	Prop3D

vtk3DWidgetConnection *	ConnectionHolder

double	PlaceFactor

int	Placed

double	InitialBounds [6]

double	InitialLength

double	HandleSize

int	ValidPick

double	LastPickPosition [3]

Protected Attributes inherited from vtkInteractorObserver
int	Enabled

vtkCallbackCommand *	EventCallbackCommand

vtkCallbackCommand *	KeyPressCallbackCommand

float	Priority

bool	PickingManaged

int	KeyPressActivation

char	KeyPressActivationValue

vtkRenderWindowInteractor *	Interactor

vtkRenderer *	CurrentRenderer

vtkRenderer *	DefaultRenderer

unsigned long	CharObserverTag

unsigned long	DeleteObserverTag

vtkObserverMediator *	ObserverMediator

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Additional Inherited Members
Static Protected Member Functions inherited from vtkInteractorObserver
static void	ProcessEvents (vtkObject object, unsigned long event, void clientdata, void *calldata)
	Handles the char widget activation event. More...

Detailed Description

an abstract superclass for 3D widgets

vtk3DWidget is an abstract superclass for 3D interactor observers. These 3D widgets represent themselves in the scene, and have special callbacks associated with them that allows interactive manipulation of the widget. Inparticular, the difference between a vtk3DWidget and its abstract superclass vtkInteractorObserver is that vtk3DWidgets are "placed" in 3D space. vtkInteractorObservers have no notion of where they are placed, and may not exist in 3D space at all. 3D widgets also provide auxiliary functions like producing a transformation, creating polydata (for seeding streamlines, probes, etc.) or creating implicit functions. See the concrete subclasses for particulars.

Typically the widget is used by specifying a vtkProp3D or VTK dataset as input, and then invoking the "On" method to activate it. (You can also specify a bounding box to help position the widget.) Prior to invoking the On() method, the user may also wish to use the PlaceWidget() to initially position it. The 'i' (for "interactor") keypresses also can be used to turn the widgets on and off (methods exist to change the key value and enable keypress activiation).

To support interactive manipulation of objects, this class (and subclasses) invoke the events StartInteractionEvent, InteractionEvent, and EndInteractionEvent. These events are invoked when the vtk3DWidget enters a state where rapid response is desired: mouse motion, etc. The events can be used, for example, to set the desired update frame rate (StartInteractionEvent), operate on the vtkProp3D or other object (InteractionEvent), and set the desired frame rate back to normal values (EndInteractionEvent).

Note that the Priority attribute inherited from vtkInteractorObserver has a new default value which is now 0.5 so that all 3D widgets have a higher priority than the usual interactor styles.

See also: vtkBoxWidget vtkPlaneWidget vtkLineWidget vtkPointWidget vtkSphereWidget vtkImplicitPlaneWidget

Definition at line 67 of file vtk3DWidget.h.

Member Typedef Documentation

typedef vtkInteractorObserver vtk3DWidget::Superclass

Definition at line 70 of file vtk3DWidget.h.

Constructor & Destructor Documentation

vtk3DWidget::vtk3DWidget ( )

protected

vtk3DWidget::~vtk3DWidget ( )

protected

Member Function Documentation

static int vtk3DWidget::IsTypeOf ( const char * type )

static

virtual int vtk3DWidget::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 vtkInteractorObserver.

Reimplemented in vtkImagePlaneWidget, vtkSplineWidget, vtkBrokenLineWidget, vtkPlaneWidget, vtkBoxWidget, vtkLineWidget, vtkImplicitPlaneWidget, vtkImageTracerWidget, vtkPointWidget, vtkSphereWidget, vtkImageCroppingRegionsWidget, and vtkPolyDataSourceWidget.

static vtk3DWidget* vtk3DWidget::SafeDownCast ( vtkObjectBase * o )

static

virtual vtkObjectBase* vtk3DWidget::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkInteractorObserver.

Reimplemented in vtkImagePlaneWidget, vtkSplineWidget, vtkBrokenLineWidget, vtkPlaneWidget, vtkBoxWidget, vtkLineWidget, vtkImplicitPlaneWidget, vtkImageTracerWidget, vtkPointWidget, vtkSphereWidget, vtkImageCroppingRegionsWidget, and vtkPolyDataSourceWidget.

vtk3DWidget* vtk3DWidget::NewInstance ( ) const

void vtk3DWidget::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)

virtual

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 vtkObject.

Reimplemented in vtkImagePlaneWidget, vtkSplineWidget, vtkBrokenLineWidget, vtkPlaneWidget, vtkBoxWidget, vtkLineWidget, vtkImplicitPlaneWidget, vtkImageTracerWidget, vtkPointWidget, vtkSphereWidget, vtkImageCroppingRegionsWidget, and vtkPolyDataSourceWidget.

virtual void vtk3DWidget::PlaceWidget ( double bounds[6] )

pure virtual

This method is used to initially place the widget.

The placement of the widget depends on whether a Prop3D or input dataset is provided. If one of these two is provided, they will be used to obtain a bounding box, around which the widget is placed. Otherwise, you can manually specify a bounds with the PlaceWidget(bounds) method. Note: PlaceWidget(bounds) is required by all subclasses; the other methods are provided as convenience methods.

Implemented in vtkImagePlaneWidget, vtkSplineWidget, vtkBrokenLineWidget, vtkPlaneWidget, vtkBoxWidget, vtkLineWidget, vtkImplicitPlaneWidget, vtkImageTracerWidget, vtkPointWidget, vtkSphereWidget, vtkImageCroppingRegionsWidget, and vtkPolyDataSourceWidget.

virtual void vtk3DWidget::PlaceWidget ( )

virtual

This method is used to initially place the widget.

The placement of the widget depends on whether a Prop3D or input dataset is provided. If one of these two is provided, they will be used to obtain a bounding box, around which the widget is placed. Otherwise, you can manually specify a bounds with the PlaceWidget(bounds) method. Note: PlaceWidget(bounds) is required by all subclasses; the other methods are provided as convenience methods.

Reimplemented in vtkImagePlaneWidget, vtkSplineWidget, vtkBrokenLineWidget, vtkPlaneWidget, vtkBoxWidget, vtkLineWidget, vtkImplicitPlaneWidget, vtkImageTracerWidget, vtkPointWidget, vtkSphereWidget, and vtkPolyDataSourceWidget.

virtual void vtk3DWidget::PlaceWidget	(	double	xmin,
		double	xmax,
		double	ymin,
		double	ymax,
		double	zmin,
		double	zmax
	)

virtual

This method is used to initially place the widget.

The placement of the widget depends on whether a Prop3D or input dataset is provided. If one of these two is provided, they will be used to obtain a bounding box, around which the widget is placed. Otherwise, you can manually specify a bounds with the PlaceWidget(bounds) method. Note: PlaceWidget(bounds) is required by all subclasses; the other methods are provided as convenience methods.

Reimplemented in vtkImagePlaneWidget, vtkSplineWidget, vtkBrokenLineWidget, vtkPlaneWidget, vtkBoxWidget, vtkLineWidget, vtkImplicitPlaneWidget, vtkImageTracerWidget, vtkPointWidget, vtkSphereWidget, and vtkPolyDataSourceWidget.

virtual void vtk3DWidget::SetProp3D ( vtkProp3D * )

virtual

Specify a vtkProp3D around which to place the widget.

This is not required, but if supplied, it is used to initially position the widget.

virtual vtkProp3D* vtk3DWidget::GetProp3D ( )

virtual

Specify a vtkProp3D around which to place the widget.

This is not required, but if supplied, it is used to initially position the widget.

virtual void vtk3DWidget::SetInputData ( vtkDataSet * )

virtual

Specify the input dataset.

This is not required, but if supplied, and no vtkProp3D is specified, it is used to initially position the widget.

virtual void vtk3DWidget::SetInputConnection ( vtkAlgorithmOutput * )

virtual

Specify the input dataset.

This is not required, but if supplied, and no vtkProp3D is specified, it is used to initially position the widget.

Reimplemented in vtkImagePlaneWidget.

virtual vtkDataSet* vtk3DWidget::GetInput ( )

virtual

Specify the input dataset.

This is not required, but if supplied, and no vtkProp3D is specified, it is used to initially position the widget.

virtual void vtk3DWidget::SetPlaceFactor ( double )

virtual

Set/Get a factor representing the scaling of the widget upon placement (via the PlaceWidget() method).

Normally the widget is placed so that it just fits within the bounding box defined in PlaceWidget(bounds). The PlaceFactor will make the widget larger (PlaceFactor > 1) or smaller (PlaceFactor < 1). By default, PlaceFactor is set to 0.5.

virtual double vtk3DWidget::GetPlaceFactor ( )

virtual

Set/Get a factor representing the scaling of the widget upon placement (via the PlaceWidget() method).

Normally the widget is placed so that it just fits within the bounding box defined in PlaceWidget(bounds). The PlaceFactor will make the widget larger (PlaceFactor > 1) or smaller (PlaceFactor < 1). By default, PlaceFactor is set to 0.5.

virtual void vtk3DWidget::SetHandleSize ( double )

virtual

Set/Get the factor that controls the size of the handles that appear as part of the widget.

These handles (like spheres, etc.) are used to manipulate the widget, and are sized as a fraction of the screen diagonal.

virtual double vtk3DWidget::GetHandleSize ( )

virtual

Set/Get the factor that controls the size of the handles that appear as part of the widget.

These handles (like spheres, etc.) are used to manipulate the widget, and are sized as a fraction of the screen diagonal.

void vtk3DWidget::AdjustBounds	(	double	bounds[6],
		double	newBounds[6],
		double	center[3]
	)

protected

double vtk3DWidget::SizeHandles ( double factor )

protected

virtual void vtk3DWidget::SizeHandles ( )

inlineprotectedvirtual

Reimplemented in vtkImageTracerWidget, vtkSplineWidget, vtkPlaneWidget, vtkSphereWidget, vtkBrokenLineWidget, vtkBoxWidget, vtkLineWidget, and vtkImplicitPlaneWidget.

Definition at line 152 of file vtk3DWidget.h.

void vtk3DWidget::UpdateInput ( )

protected

Member Data Documentation

vtkProp3D* vtk3DWidget::Prop3D

protected

Definition at line 138 of file vtk3DWidget.h.

vtk3DWidgetConnection* vtk3DWidget::ConnectionHolder

protected

Definition at line 140 of file vtk3DWidget.h.

double vtk3DWidget::PlaceFactor

protected

Definition at line 143 of file vtk3DWidget.h.

int vtk3DWidget::Placed

protected

Definition at line 144 of file vtk3DWidget.h.

double vtk3DWidget::InitialBounds[6]

protected

Definition at line 148 of file vtk3DWidget.h.

double vtk3DWidget::InitialLength

protected

Definition at line 149 of file vtk3DWidget.h.

double vtk3DWidget::HandleSize

protected

Definition at line 150 of file vtk3DWidget.h.

int vtk3DWidget::ValidPick

protected

Definition at line 155 of file vtk3DWidget.h.

double vtk3DWidget::LastPickPosition[3]

protected

Definition at line 156 of file vtk3DWidget.h.

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

/home/demarle/Builds/VTK/release/Utilities/Doxygen/dox/Interaction/Widgets/vtk3DWidget.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation