#include <vtkPickingManager.h>

Inheritance diagram for vtkPickingManager:

Collaboration diagram for vtkPickingManager:

Public Types
typedef vtkObject	Superclass

Public Types inherited from vtkObject
typedef vtkObjectBase	Superclass

Public Member Functions
virtual int	IsA (const char *type)

vtkPickingManager *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)

void	AddPicker (vtkAbstractPicker picker, vtkObject object=0)

void	RemovePicker (vtkAbstractPicker picker, vtkObject object=0)

void	RemoveObject (vtkObject *object)

bool	Pick (vtkAbstractPicker picker, vtkObject object)

bool	Pick (vtkObject *object)

bool	Pick (vtkAbstractPicker *picker)

int	GetNumberOfPickers ()

int	GetNumberOfObjectsLinked (vtkAbstractPicker *picker)


virtual void	EnabledOn ()

virtual void	EnabledOff ()

virtual void	SetEnabled (bool)

virtual bool	GetEnabled ()


void	SetOptimizeOnInteractorEvents (bool optimize)

virtual bool	GetOptimizeOnInteractorEvents ()


void	SetInteractor (vtkRenderWindowInteractor *iren)

virtual vtkRenderWindowInteractor *	GetInteractor ()


vtkAssemblyPath *	GetAssemblyPath (double X, double Y, double Z, vtkAbstractPropPicker picker, vtkRenderer renderer, vtkObject *obj)

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

virtual void	DebugOn ()

virtual void	DebugOff ()

bool	GetDebug ()

void	SetDebug (bool debugFlag)

virtual void	Modified ()

virtual unsigned long	GetMTime ()

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)

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 )

int	HasObserver (unsigned long event, vtkCommand *)

int	HasObserver (const char event, vtkCommand )

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)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)

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)

int	InvokeEvent (unsigned long event, void *callData)

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

virtual void	Delete ()

virtual void	FastDelete ()

void	Print (ostream &os)

virtual void	Register (vtkObjectBase *o)

virtual void	UnRegister (vtkObjectBase *o)

void	SetReferenceCount (int)

void	PrintRevisions (ostream &)

virtual void	PrintHeader (ostream &os, vtkIndent indent)

virtual void	PrintTrailer (ostream &os, vtkIndent indent)

int	GetReferenceCount ()

Static Public Member Functions
static vtkPickingManager *	New ()

static int	IsTypeOf (const char *type)

static vtkPickingManager *	SafeDownCast (vtkObjectBase *o)

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

static vtkObject *	SafeDownCast (vtkObjectBase *o)

static vtkObject *	New ()

static void	BreakOnError ()

static void	SetGlobalWarningDisplay (int val)

static void	GlobalWarningDisplayOn ()

static void	GlobalWarningDisplayOff ()

static int	GetGlobalWarningDisplay ()

Static Public Member Functions inherited from vtkObjectBase
static int	IsTypeOf (const char *name)

static vtkObjectBase *	New ()

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkPickingManager ()

	~vtkPickingManager ()

Protected Member Functions inherited from vtkObject
	vtkObject ()

virtual	~vtkObject ()

virtual void	RegisterInternal (vtkObjectBase *, int check)

virtual void	UnRegisterInternal (vtkObjectBase *, int check)

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=NULL)

void	InternalReleaseFocus ()

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
vtkRenderWindowInteractor *	Interactor

bool	Enabled

bool	OptimizeOnInteractorEvents

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Detailed Description

Class defines API to manage the picking process.

The Picking Manager (PM) coordinates picking across widgets simultaneously. It maintains a collection of registered pickers; when the manager is picked (e.g. vtkPickingManager::Pick()), a pick is run on each picker but only the best picker (e.g. closest to camera point) is selected. It finally returns the widget/representation or picker that was selected.

Warning: Every time a vtkWidget and/or a vtkWidgetRepresentation is instantiated, it automatically registers its picker(s) and start being managed by delegating all its pick calls to the picking manager. It is possible to customize with the management in two ways: at the widget level, the “ManagesPicking” variable can be changed from the widget/representation class to tell whether to use the manager or not. Directly disable the picking manager itself with the boolean variable

See also: Enabled using vtkPickingManager::EnabledOn(), EnabledOff(), SetEnabled(bool).

Important:: The picking manager is not active by default as it slightly reduces the performances when interacting with the scene.

Important:: When registering pickers, a null object is considered valid because we can managed picker without any associated object. It is really important to note that a null object is different from one to an other !! This has been done to allow adding multiple times the same picker to the manager by not passing the referenced object to not force the supression of all pickers

Tests:: vtkPickingManager (Tests)

Definition at line 84 of file vtkPickingManager.h.

Member Typedef Documentation

typedef vtkObject vtkPickingManager::Superclass

Definition at line 88 of file vtkPickingManager.h.

Constructor & Destructor Documentation

vtkPickingManager::vtkPickingManager ( )

protected

vtkPickingManager::~vtkPickingManager ( )

protected

Member Function Documentation

static vtkPickingManager* vtkPickingManager::New ( )

static

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

static

virtual int vtkPickingManager::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 vtkObject.

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

static

virtual vtkObjectBase* vtkPickingManager::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkObject.

vtkPickingManager* vtkPickingManager::NewInstance ( ) const

void vtkPickingManager::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.

virtual void vtkPickingManager::EnabledOn ( )

virtual

Enable/Disable management. When disabled, it redirects every pick on the picker. By default the picking manager is disabled when initialized.

virtual void vtkPickingManager::EnabledOff ( )

virtual

Enable/Disable management. When disabled, it redirects every pick on the picker. By default the picking manager is disabled when initialized.

virtual void vtkPickingManager::SetEnabled ( bool )

virtual

Enable/Disable management. When disabled, it redirects every pick on the picker. By default the picking manager is disabled when initialized.

virtual bool vtkPickingManager::GetEnabled ( )

virtual

Enable/Disable management. When disabled, it redirects every pick on the picker. By default the picking manager is disabled when initialized.

void vtkPickingManager::SetOptimizeOnInteractorEvents ( bool optimize )

Enable/Disable optimization depending on the renderWindowInteractor events. The mechanism keeps in cache the last selected picker as well as the last render time to recompute the selection only if a new render event occurred after the last selection; otherwise, it simply returns the last picker selected. By default pickingManagers does use the optimization. Warning: Turning off the caching significantly decreases performance.

virtual bool vtkPickingManager::GetOptimizeOnInteractorEvents ( )

virtual

Enable/Disable optimization depending on the renderWindowInteractor events. The mechanism keeps in cache the last selected picker as well as the last render time to recompute the selection only if a new render event occurred after the last selection; otherwise, it simply returns the last picker selected. By default pickingManagers does use the optimization. Warning: Turning off the caching significantly decreases performance.

void vtkPickingManager::SetInteractor ( vtkRenderWindowInteractor * iren )

Set the window interactor associated with the manager.

virtual vtkRenderWindowInteractor* vtkPickingManager::GetInteractor ( )

virtual

Set the window interactor associated with the manager.

void vtkPickingManager::AddPicker	(	vtkAbstractPicker *	picker,
		vtkObject *	object = `0`
	)

Register a picker into the picking manager. It can be internally associated (optional) with an object. This allows the removal of all the pickers of the given object. Note that a picker can be registered multiple times with different objects.

See also: RemovePicker(), RemoveObject().

void vtkPickingManager::RemovePicker	(	vtkAbstractPicker *	picker,
		vtkObject *	object = `0`
	)

Unregister the picker from the picking manager. If object is non null, only the pair (picker, object) is removed.

void vtkPickingManager::RemoveObject ( vtkObject * object )

Remove all occurences of the object from the registered list. If a picker associated with the object is not also associated with any other object, it is removed from the list as well.

bool vtkPickingManager::Pick	(	vtkAbstractPicker *	picker,
		vtkObject *	object
	)

Run the picking selection process and return true if the object is associated with the given picker if it is the best one, false otherwise. If OptimizeOnInteractorEvents is true, the pick can reuse cached information.

bool vtkPickingManager::Pick ( vtkObject * object )

Run the picking selection process and return true if the object is associated with the best picker. This is an overloaded function.

bool vtkPickingManager::Pick ( vtkAbstractPicker * picker )

Run the picking selection process and return if picker is the one selected. This is an overloaded function.

vtkAssemblyPath* vtkPickingManager::GetAssemblyPath	(	double	X,
		double	Y,
		double	Z,
		vtkAbstractPropPicker *	picker,
		vtkRenderer *	renderer,
		vtkObject *	obj
	)

If the picking manager is enabled, it runs the picking selection process and return the assembly path associated to the picker passed as argument if it is the one mediated. Otherwise it simply proceeds to a pick using the given renderer and returns the corresponding assembly path.

int vtkPickingManager::GetNumberOfPickers ( )

Return the number of pickers registered. If the same picker is added multiple times with different objects, it is counted once.

int vtkPickingManager::GetNumberOfObjectsLinked ( vtkAbstractPicker * picker )

Return the number of objects linked with a given picker. Note: a null object is counted as an associated object.

Member Data Documentation

vtkRenderWindowInteractor* vtkPickingManager::Interactor

protected

Definition at line 173 of file vtkPickingManager.h.

bool vtkPickingManager::Enabled

protected

Definition at line 174 of file vtkPickingManager.h.

bool vtkPickingManager::OptimizeOnInteractorEvents

protected

Definition at line 175 of file vtkPickingManager.h.

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

/home/boeckb/code/depot/group-kitware/vtk/build-release/Utilities/Doxygen/dox/Rendering/Core/vtkPickingManager.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation