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vtkSeedWidget Class Reference

place multiple seed points More...

#include <vtkSeedWidget.h>

Inheritance diagram for vtkSeedWidget:
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Collaboration diagram for vtkSeedWidget:
[legend]

Public Types

enum  { Start = 1, PlacingSeeds = 2, PlacedSeeds = 4, MovingSeed = 8 }
 
- 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 void SetEnabled (int)
 The method for activating and deactivating this widget. More...
 
virtual void SetCurrentRenderer (vtkRenderer *)
 Set the current renderer. More...
 
virtual void SetInteractor (vtkRenderWindowInteractor *)
 Set the interactor. More...
 
void SetRepresentation (vtkSeedRepresentation *rep)
 Specify an instance of vtkWidgetRepresentation used to represent this widget in the scene. More...
 
vtkSeedRepresentationGetSeedRepresentation ()
 Return the representation as a vtkSeedRepresentation. More...
 
void CreateDefaultRepresentation ()
 Create the default widget representation if one is not set. More...
 
virtual void SetProcessEvents (int)
 Methods to change the whether the widget responds to interaction. More...
 
virtual void CompleteInteraction ()
 Method to be called when the seed widget should stop responding to the place point interaction. More...
 
virtual void RestartInteraction ()
 Method to be called when the seed widget should start responding to the interaction. More...
 
virtual vtkHandleWidgetCreateNewHandle ()
 Use this method to programmatically create a new handle. More...
 
void DeleteSeed (int n)
 Delete the nth seed. More...
 
vtkHandleWidgetGetSeed (int n)
 Get the nth seed. More...
 
virtual int GetWidgetState ()
 Get the widget state. More...
 
- Public Member Functions inherited from vtkAbstractWidget
vtkWidgetEventTranslatorGetEventTranslator ()
 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 vtkAbstractWidgetGetParent ()
 
virtual void SetPriority (float)
 Override the superclass method. More...
 
virtual int GetProcessEvents ()
 Methods to change whether the widget responds to interaction. More...
 
virtual void ProcessEventsOn ()
 Methods to change whether the widget responds to interaction. More...
 
virtual void ProcessEventsOff ()
 Methods to change whether the widget responds to interaction. More...
 
vtkWidgetRepresentationGetRepresentation ()
 Return an instance of vtkWidgetRepresentation used to represent this widget in the scene. More...
 
virtual void SetManagesCursor (int)
 Turn on or off the management of the cursor. More...
 
virtual int GetManagesCursor ()
 Turn on or off the management of the cursor. More...
 
virtual void ManagesCursorOn ()
 Turn on or off the management of the cursor. More...
 
virtual void ManagesCursorOff ()
 Turn on or off the management of the cursor. More...
 
vtkAbstractWidgetNewInstance () const
 Standard macros implementing standard VTK methods. More...
 
- Public Member Functions inherited from vtkInteractorObserver
vtkInteractorObserverNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 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 OnChar ()
 Sets up the keypress-i event. More...
 
virtual vtkRenderWindowInteractorGetInteractor ()
 This method is used to associate the widget with the render window interactor. 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 vtkRendererGetDefaultRenderer ()
 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 vtkRendererGetCurrentRenderer ()
 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...
 
vtkCommandGetCommand (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 vtkSeedWidgetNew ()
 Instantiate this class. More...
 
- Static Public Member Functions inherited from vtkAbstractWidget
static int IsTypeOf (const char *type)
 Standard macros implementing standard VTK methods. More...
 
static vtkAbstractWidgetSafeDownCast (vtkObjectBase *o)
 Standard macros implementing standard VTK methods. More...
 
- Static Public Member Functions inherited from vtkInteractorObserver
static int IsTypeOf (const char *type)
 
static vtkInteractorObserverSafeDownCast (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 vtkObjectNew ()
 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 vtkObjectBaseNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
 

Protected Member Functions

 vtkSeedWidget ()
 
 ~vtkSeedWidget ()
 
- Protected Member Functions inherited from vtkAbstractWidget
 vtkAbstractWidget ()
 
 ~vtkAbstractWidget ()
 
void SetWidgetRepresentation (vtkWidgetRepresentation *r)
 
virtual void SetCursor (int vtkNotUsed(state))
 
- 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...
 
vtkPickingManagerGetPickingManager ()
 Return the picking manager associated on the context on which the observer currently belong. More...
 
vtkAssemblyPathGetAssemblyPath (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 &)
 

Static Protected Member Functions

static void AddPointAction (vtkAbstractWidget *)
 
static void CompletedAction (vtkAbstractWidget *)
 
static void MoveAction (vtkAbstractWidget *)
 
static void EndSelectAction (vtkAbstractWidget *)
 
static void DeleteAction (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...
 

Protected Attributes

int WidgetState
 
vtkSeedList * Seeds
 
int Defining
 
- Protected Attributes inherited from vtkAbstractWidget
vtkWidgetRepresentationWidgetRep
 
int ManagesCursor
 
vtkWidgetEventTranslatorEventTranslator
 
vtkWidgetCallbackMapperCallbackMapper
 
vtkAbstractWidgetParent
 
void * CallData
 
int ProcessEvents
 
- Protected Attributes inherited from vtkInteractorObserver
int Enabled
 
vtkCallbackCommandEventCallbackCommand
 
vtkCallbackCommandKeyPressCallbackCommand
 
float Priority
 
bool PickingManaged
 
int KeyPressActivation
 
char KeyPressActivationValue
 
vtkRenderWindowInteractorInteractor
 
vtkRendererCurrentRenderer
 
vtkRendererDefaultRenderer
 
unsigned long CharObserverTag
 
unsigned long DeleteObserverTag
 
vtkObserverMediatorObserverMediator
 
- Protected Attributes inherited from vtkObject
bool Debug
 
vtkTimeStamp MTime
 
vtkSubjectHelper * SubjectHelper
 
- Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32 ReferenceCount
 
vtkWeakPointerBase ** WeakPointers
 
typedef vtkAbstractWidget Superclass
 Standard methods for a VTK class. More...
 
static int IsTypeOf (const char *type)
 Standard methods for a VTK class. More...
 
static vtkSeedWidgetSafeDownCast (vtkObjectBase *o)
 Standard methods for a VTK class. More...
 
virtual int IsA (const char *type)
 Standard methods for a VTK class. More...
 
vtkSeedWidgetNewInstance () const
 Standard methods for a VTK class. More...
 
void PrintSelf (ostream &os, vtkIndent indent)
 Standard methods for a VTK class. More...
 
virtual vtkObjectBaseNewInstanceInternal () const
 Standard methods for a VTK class. More...
 

Detailed Description

place multiple seed points

The vtkSeedWidget is used to placed multiple seed points in the scene. The seed points can be used for operations like connectivity, segmentation, and region growing.

To use this widget, specify an instance of vtkSeedWidget and a representation (a subclass of vtkSeedRepresentation). The widget is implemented using multiple instances of vtkHandleWidget which can be used to position the seed points (after they are initially placed). The representations for these handle widgets are provided by the vtkSeedRepresentation.

Event Bindings:
By default, the widget responds to the following VTK events (i.e., it watches the vtkRenderWindowInteractor for these events):
  LeftButtonPressEvent - add a point or select a handle (i.e., seed)
  RightButtonPressEvent - finish adding the seeds
  MouseMoveEvent - move a handle (i.e., seed)
  LeftButtonReleaseEvent - release the selected handle (seed)
Event Bindings:
Note that the event bindings described above can be changed using this class's vtkWidgetEventTranslator. This class translates VTK events into the vtkSeedWidget's widget events:
  vtkWidgetEvent::AddPoint -- add one point; depending on the state
                              it may the first or second point added. Or,
                              if near handle, select handle.
  vtkWidgetEvent::Completed -- finished adding seeds.
  vtkWidgetEvent::Move -- move the second point or handle depending on the state.
  vtkWidgetEvent::EndSelect -- the handle manipulation process has completed.
Event Bindings:
This widget invokes the following VTK events on itself (which observers can listen for):
  vtkCommand::StartInteractionEvent (beginning to interact)
  vtkCommand::EndInteractionEvent (completing interaction)
  vtkCommand::InteractionEvent (moving after selecting something)
  vtkCommand::PlacePointEvent (after point is positioned;
                               call data includes handle id (0,1))
See also
vtkHandleWidget vtkSeedReoresentation
Tests:
vtkSeedWidget (Tests)

Definition at line 83 of file vtkSeedWidget.h.

Member Typedef Documentation

Standard methods for a VTK class.

Definition at line 95 of file vtkSeedWidget.h.

Member Enumeration Documentation

anonymous enum
Enumerator
Start 
PlacingSeeds 
PlacedSeeds 
MovingSeed 

Definition at line 191 of file vtkSeedWidget.h.

Constructor & Destructor Documentation

vtkSeedWidget::vtkSeedWidget ( )
protected
vtkSeedWidget::~vtkSeedWidget ( )
protected

Member Function Documentation

static vtkSeedWidget* vtkSeedWidget::New ( )
static

Instantiate this class.

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

Standard methods for a VTK class.

virtual int vtkSeedWidget::IsA ( const char *  type)
virtual

Standard methods for a VTK class.

Reimplemented from vtkAbstractWidget.

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

Standard methods for a VTK class.

virtual vtkObjectBase* vtkSeedWidget::NewInstanceInternal ( ) const
protectedvirtual

Standard methods for a VTK class.

Reimplemented from vtkAbstractWidget.

vtkSeedWidget* vtkSeedWidget::NewInstance ( ) const

Standard methods for a VTK class.

void vtkSeedWidget::PrintSelf ( ostream &  os,
vtkIndent  indent 
)
virtual

Standard methods for a VTK class.

Reimplemented from vtkAbstractWidget.

virtual void vtkSeedWidget::SetEnabled ( int  )
virtual

The method for activating and deactivating this widget.

This method must be overridden because it is a composite widget and does more than its superclasses' vtkAbstractWidget::SetEnabled() method.

Reimplemented from vtkAbstractWidget.

virtual void vtkSeedWidget::SetCurrentRenderer ( vtkRenderer )
virtual

Set the current renderer.

This method also propagates to all the child handle widgets, if any exist

Reimplemented from vtkInteractorObserver.

virtual void vtkSeedWidget::SetInteractor ( vtkRenderWindowInteractor )
virtual

Set the interactor.

This method also propagates to all the child handle widgets, if any exist

Reimplemented from vtkInteractorObserver.

void vtkSeedWidget::SetRepresentation ( vtkSeedRepresentation rep)
inline

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.

Definition at line 123 of file vtkSeedWidget.h.

vtkSeedRepresentation* vtkSeedWidget::GetSeedRepresentation ( )
inline

Return the representation as a vtkSeedRepresentation.

Definition at line 132 of file vtkSeedWidget.h.

void vtkSeedWidget::CreateDefaultRepresentation ( )
virtual

Create the default widget representation if one is not set.

Implements vtkAbstractWidget.

virtual void vtkSeedWidget::SetProcessEvents ( int  )
virtual

Methods to change the whether the widget responds to interaction.

Overridden to pass the state to component widgets.

Reimplemented from vtkAbstractWidget.

virtual void vtkSeedWidget::CompleteInteraction ( )
virtual

Method to be called when the seed widget should stop responding to the place point interaction.

The seed widget, when defined allows you place seeds by clicking on the render window. Use this method to indicate that you would like to stop placing seeds interactively. If you'd like the widget to stop responding to any user interaction simply disable event processing by the widget by calling widget->ProcessEventsOff()

virtual void vtkSeedWidget::RestartInteraction ( )
virtual

Method to be called when the seed widget should start responding to the interaction.

virtual vtkHandleWidget* vtkSeedWidget::CreateNewHandle ( )
virtual

Use this method to programmatically create a new handle.

In interactive mode, (when the widget is in the PlacingSeeds state) this method is automatically invoked. The method returns the handle created. A valid seed representation must exist for the widget to create a new handle.

void vtkSeedWidget::DeleteSeed ( int  n)

Delete the nth seed.

vtkHandleWidget* vtkSeedWidget::GetSeed ( int  n)

Get the nth seed.

virtual int vtkSeedWidget::GetWidgetState ( )
virtual

Get the widget state.

static void vtkSeedWidget::AddPointAction ( vtkAbstractWidget )
staticprotected
static void vtkSeedWidget::CompletedAction ( vtkAbstractWidget )
staticprotected
static void vtkSeedWidget::MoveAction ( vtkAbstractWidget )
staticprotected
static void vtkSeedWidget::EndSelectAction ( vtkAbstractWidget )
staticprotected
static void vtkSeedWidget::DeleteAction ( vtkAbstractWidget )
staticprotected

Member Data Documentation

int vtkSeedWidget::WidgetState
protected

Definition at line 204 of file vtkSeedWidget.h.

vtkSeedList* vtkSeedWidget::Seeds
protected

Definition at line 215 of file vtkSeedWidget.h.

int vtkSeedWidget::Defining
protected

Definition at line 218 of file vtkSeedWidget.h.


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