3D widget for showing a LightRepresentation More...

#include <vtkLightWidget.h>

Inheritance diagram for vtkLightWidget:

Collaboration diagram for vtkLightWidget:

Public Types
typedef vtkAbstractWidget	Superclass

Public Types inherited from vtkAbstractWidget
typedef vtkInteractorObserver	Superclass
	Standard macros implementing standard VTK methods. More...

Public Types inherited from vtkInteractorObserver
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...

vtkLightWidget *	NewInstance () const

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

void	SetRepresentation (vtkLightRepresentation *r)
	Specify an instance of vtkWidgetRepresentation used to represent this widget in the scene. More...

vtkLightRepresentation *	GetLightRepresentation ()
	Return the representation as a vtkLightRepresentation. More...

void	CreateDefaultRepresentation () override
	Create the default widget representation if one is not set. More...

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

void	SetEnabled (int) override
	Methods for activating this widget. More...

virtual void	SetProcessEvents (vtkTypeBool)
	Methods to change whether the widget responds to interaction. More...

virtual vtkTypeBool	GetProcessEvents ()

virtual void	ProcessEventsOn ()

virtual void	ProcessEventsOff ()

vtkWidgetEventTranslator *	GetEventTranslator ()
	Get the event translator. More...

void	Render ()
	This method is called by subclasses when a render method is to be invoked on the vtkRenderWindowInteractor. More...

void	SetParent (vtkAbstractWidget *parent)
	Specifying a parent to this widget is used when creating composite widgets. More...

virtual vtkAbstractWidget *	GetParent ()

vtkWidgetRepresentation *	GetRepresentation ()
	Return an instance of vtkWidgetRepresentation used to represent this widget in the scene. More...

virtual void	SetManagesCursor (vtkTypeBool)
	Turn on or off the management of the cursor. More...

virtual vtkTypeBool	GetManagesCursor ()

virtual void	ManagesCursorOn ()

virtual void	ManagesCursorOff ()

void	SetPriority (float) override
	Override the superclass method. More...

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

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

int	GetEnabled ()

void	EnabledOn ()

void	EnabledOff ()

void	On ()

void	Off ()

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

virtual vtkRenderWindowInteractor *	GetInteractor ()

virtual float	GetPriority ()

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

virtual void	PickingManagedOff ()

virtual void	SetPickingManaged (bool managed)

virtual bool	GetPickingManaged ()

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

virtual vtkTypeBool	GetKeyPressActivation ()

virtual void	KeyPressActivationOn ()

virtual void	KeyPressActivationOff ()

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 ()

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

virtual void	SetDefaultRenderer (vtkRenderer *)

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

virtual void	SetCurrentRenderer (vtkRenderer *)

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

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

void	ReleaseFocus ()

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 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). 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)

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...

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

Static Public Member Functions
static vtkLightWidget *	New ()

static vtkTypeBool	IsTypeOf (const char *type)

static vtkLightWidget *	SafeDownCast (vtkObjectBase *o)

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

static vtkAbstractWidget *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkInteractorObserver
static vtkTypeBool	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])

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 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). More...

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

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

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. More...

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkLightWidget ()

	~vtkLightWidget () override=default

Protected Member Functions inherited from vtkAbstractWidget
	vtkAbstractWidget ()

	~vtkAbstractWidget () override

void	SetWidgetRepresentation (vtkWidgetRepresentation *r)

virtual void	SetCursor (int vtkNotUsed(state))

Protected Member Functions inherited from vtkInteractorObserver
	vtkInteractorObserver ()

	~vtkInteractorObserver () override

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

virtual void	EndInteraction ()

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])

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

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

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	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Static Protected Member Functions
static void	SelectAction (vtkAbstractWidget *)

static void	EndSelectAction (vtkAbstractWidget *)

static void	MoveAction (vtkAbstractWidget *)

static void	ScaleAction (vtkAbstractWidget *)

Static Protected Member Functions inherited from vtkAbstractWidget
static void	ProcessEventsHandler (vtkObject object, unsigned long event, void clientdata, void *calldata)

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...

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

static vtkReallocingFunction	GetCurrentReallocFunction ()

static vtkFreeingFunction	GetCurrentFreeFunction ()

static vtkFreeingFunction	GetAlternateFreeFunction ()

Protected Attributes
bool	WidgetActive = false

Protected Attributes inherited from vtkAbstractWidget
vtkWidgetRepresentation *	WidgetRep

vtkTypeBool	ManagesCursor

vtkWidgetEventTranslator *	EventTranslator

vtkWidgetCallbackMapper *	CallbackMapper

vtkAbstractWidget *	Parent

void *	CallData

vtkTypeBool	ProcessEvents

int	LastDevice

Protected Attributes inherited from vtkInteractorObserver
int	Enabled

vtkCallbackCommand *	EventCallbackCommand

vtkCallbackCommand *	KeyPressCallbackCommand

float	Priority

bool	PickingManaged

vtkTypeBool	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
std::atomic< int32_t >	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Detailed Description

3D widget for showing a LightRepresentation

To use this widget, one generally pairs it with a vtkLightRepresentation. Various options are available in the representation for controlling how the widget appears, and how it functions.

Event Bindings:

By default, the widget responds to the following VTK events (i.e., it watches the vtkRenderWindowInteractor for these events):

Select and move the sphere to change the light position.
Select and move the cone or the line to change the focal point.
Right-Click and scale on the cone to change the cone angle.

Warning: Note that the widget can be picked even when it is "behind" other actors. This is an intended feature and not a bug.; This class, and vtkLightRepresentation, are second generation VTK widgets.

See also: vtkLightRepresentation vtkSphereWidget

Events:: vtkCommand::EndInteractionEvent vtkCommand::InteractionEvent vtkCommand::StartInteractionEvent

Tests:: vtkLightWidget (Tests)

Definition at line 58 of file vtkLightWidget.h.

Member Typedef Documentation

◆ Superclass

typedef vtkAbstractWidget vtkLightWidget::Superclass

Definition at line 62 of file vtkLightWidget.h.

Constructor & Destructor Documentation

◆ vtkLightWidget()

vtkLightWidget::vtkLightWidget ( )

protected

◆ ~vtkLightWidget()

vtkLightWidget::~vtkLightWidget ( )

overrideprotecteddefault

Member Function Documentation

◆ New()

static vtkLightWidget* vtkLightWidget::New ( )

static

◆ IsTypeOf()

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

static

◆ IsA()

virtual vtkTypeBool vtkLightWidget::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 vtkAbstractWidget.

◆ SafeDownCast()

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

static

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkLightWidget::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkAbstractWidget.

◆ NewInstance()

vtkLightWidget* vtkLightWidget::NewInstance ( ) const

◆ PrintSelf()

void vtkLightWidget::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 vtkAbstractWidget.

◆ SetRepresentation()

void vtkLightWidget::SetRepresentation ( vtkLightRepresentation * r )

Specify an instance of vtkWidgetRepresentation used to represent this widget in the scene.

Note that the representation is a subclass of vtkProp so it can be added to the renderer independent of the widget.

◆ GetLightRepresentation()

vtkLightRepresentation* vtkLightWidget::GetLightRepresentation ( )

Return the representation as a vtkLightRepresentation.

◆ CreateDefaultRepresentation()

void vtkLightWidget::CreateDefaultRepresentation ( )

overridevirtual

Create the default widget representation if one is not set.

Implements vtkAbstractWidget.

◆ SelectAction()

static void vtkLightWidget::SelectAction ( vtkAbstractWidget * )

staticprotected

◆ EndSelectAction()

static void vtkLightWidget::EndSelectAction ( vtkAbstractWidget * )

staticprotected

◆ MoveAction()

static void vtkLightWidget::MoveAction ( vtkAbstractWidget * )

staticprotected

◆ ScaleAction()

static void vtkLightWidget::ScaleAction ( vtkAbstractWidget * )

staticprotected

Member Data Documentation

◆ WidgetActive

bool vtkLightWidget::WidgetActive = false

protected

Definition at line 86 of file vtkLightWidget.h.

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

Interaction/Widgets/vtkLightWidget.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ Superclass

Constructor & Destructor Documentation

◆ vtkLightWidget()

◆ ~vtkLightWidget()

Member Function Documentation

◆ New()

◆ IsTypeOf()

◆ IsA()

◆ SafeDownCast()

◆ NewInstanceInternal()

◆ NewInstance()

◆ PrintSelf()

◆ SetRepresentation()

◆ GetLightRepresentation()

◆ CreateDefaultRepresentation()

◆ SelectAction()

◆ EndSelectAction()

◆ MoveAction()

◆ ScaleAction()

Member Data Documentation

◆ WidgetActive