Pure virtual base class for implementing custom intersection technique. More...

Inheritance diagram for osgUtil::Intersector:

Public Types
enum	CoordinateFrame { WINDOW, PROJECTION, VIEW, MODEL }

enum	IntersectionLimit { NO_LIMIT, LIMIT_ONE_PER_DRAWABLE, LIMIT_ONE, LIMIT_NEAREST }

enum	PrecisionHint { USE_DOUBLE_CALCULATIONS, USE_FLOAT_CALCULATIONS }
	Hint to precision used in the internal intersections calculations. More...

Public Member Functions
	Intersector (CoordinateFrame cf=MODEL, IntersectionLimit il=NO_LIMIT)

void	setCoordinateFrame (CoordinateFrame cf)

CoordinateFrame	getCoordinateFrame () const

void	setIntersectionLimit (IntersectionLimit limit)

IntersectionLimit	getIntersectionLimit () const

virtual Intersector *	clone (osgUtil::IntersectionVisitor &iv)=0

virtual bool	enter (const osg::Node &node)=0

virtual void	leave ()=0

virtual void	intersect (osgUtil::IntersectionVisitor &iv, osg::Drawable *drawable)=0

virtual void	reset ()

virtual bool	containsIntersections ()=0

bool	disabled () const

void	incrementDisabledCount ()

void	decrementDisabledCount ()

bool	reachedLimit ()

void	setPrecisionHint (PrecisionHint hint)
	Set the hint to what precision to use in the intersections calculations. More...

PrecisionHint	getPrecisionHint () const
	Get the hint to what precision should be used in the intersections calculations. More...

Public Member Functions inherited from osg::Referenced
	Referenced ()

	Referenced (bool threadSafeRefUnref)
	Deprecated, Referenced is now always uses thread safe ref/unref, use default Referenced() constructor instead. More...

	Referenced (const Referenced &)

Referenced &	operator= (const Referenced &)

virtual void	setThreadSafeRefUnref (bool)
	Deprecated, Referenced is always theadsafe so there method now has no effect and does not need to be called. More...

bool	getThreadSafeRefUnref () const
	Get whether a mutex is used to ensure ref() and unref() are thread safe. More...

OpenThreads::Mutex *	getRefMutex () const
	Get the mutex used to ensure thread safety of ref()/unref(). More...

int	ref () const
	Increment the reference count by one, indicating that this object has another pointer which is referencing it. More...

int	unref () const
	Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. More...

int	unref_nodelete () const
	Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. More...

int	referenceCount () const
	Return the number of pointers currently referencing this object. More...

ObserverSet *	getObserverSet () const
	Get the ObserverSet if one is attached, otherwise return NULL. More...

ObserverSet *	getOrCreateObserverSet () const
	Get the ObserverSet if one is attached, otherwise create an ObserverSet, attach it, then return this newly created ObserverSet. More...

void	addObserver (Observer *observer) const
	Add a Observer that is observing this object, notify the Observer when this object gets deleted. More...

void	removeObserver (Observer *observer) const
	Remove Observer that is observing this object. More...

Protected Attributes
CoordinateFrame	_coordinateFrame

IntersectionLimit	_intersectionLimit

unsigned int	_disabledCount

PrecisionHint	_precisionHint

Protected Attributes inherited from osg::Referenced
OpenThreads::AtomicPtr	_observerSet

OpenThreads::Atomic	_refCount

Additional Inherited Members
Static Public Member Functions inherited from osg::Referenced
static OpenThreads::Mutex *	getGlobalReferencedMutex ()
	Get the optional global Referenced mutex, this can be shared between all osg::Referenced. More...

static void	setDeleteHandler (DeleteHandler *handler)
	Set a DeleteHandler to which deletion of all referenced counted objects will be delegated. More...

static DeleteHandler *	getDeleteHandler ()
	Get a DeleteHandler. More...

Protected Member Functions inherited from osg::Referenced
virtual	~Referenced ()

void	signalObserversAndDelete (bool signalDelete, bool doDelete) const

void	deleteUsingDeleteHandler () const

Detailed Description

Pure virtual base class for implementing custom intersection technique.

To implement a specific intersection technique on must override all the pure virtual methods, concrete examples of how to do this can be seen in the LineSegmentIntersector.