OpenSceneGraph  3.0.1
Public Types | Public Member Functions | Protected Attributes
osgUtil::Intersector Class Reference

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

Inheritance diagram for osgUtil::Intersector:
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List of all members.

Public Types

enum  CoordinateFrame { WINDOW, PROJECTION, VIEW, MODEL }
enum  IntersectionLimit { NO_LIMIT, LIMIT_ONE_PER_DRAWABLE, LIMIT_ONE, LIMIT_NEAREST }

Public Member Functions

 Intersector (CoordinateFrame cf=MODEL)
void setCoordinateFrame (CoordinateFrame cf)
CoordinateFrame getCoordinateFrame () const
void setIntersectionLimit (IntersectionLimit limit)
IntersectionLimit getIntersectionLimit () const
virtual Intersectorclone (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 ()
- Public Member Functions inherited from osg::Referenced
 Referenced ()
 Referenced (bool threadSafeRefUnref)
 Referenced (const Referenced &)
Referencedoperator= (const Referenced &)
virtual void setThreadSafeRefUnref (bool threadSafe)
 Set whether to use a mutex to ensure ref() and unref() are thread safe.
bool getThreadSafeRefUnref () const
 Get whether a mutex is used to ensure ref() and unref() are thread safe.
OpenThreads::Mutex * getRefMutex () const
 Get the mutex used to ensure thread safety of ref()/unref().
int ref () const
 Increment the reference count by one, indicating that this object has another pointer which is referencing it.
int unref () const
 Decrement the reference count by one, indicating that a pointer to this object is referencing it.
int unref_nodelete () const
 Decrement the reference count by one, indicating that a pointer to this object is referencing it.
int referenceCount () const
 Return the number of pointers currently referencing this object.
ObserverSetgetObserverSet () const
 Get the ObserverSet if one is attached, otherwise return NULL.
ObserverSetgetOrCreateObserverSet () const
 Get the ObserverSet if one is attached, otherwise create an ObserverSet, attach it, then return this newly created ObserverSet.
void addObserver (Observer *observer) const
 Add a Observer that is observing this object, notify the Observer when this object gets deleted.
void removeObserver (Observer *observer) const
 Remove Observer that is observing this object.

Protected Attributes

CoordinateFrame _coordinateFrame
IntersectionLimit _intersectionLimit
unsigned int _disabledCount
- 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.
static void setThreadSafeReferenceCounting (bool enableThreadSafeReferenceCounting)
 Set whether reference counting should use a mutex for thread safe reference counting.
static bool getThreadSafeReferenceCounting ()
 Get whether reference counting is active.
static void setDeleteHandler (DeleteHandler *handler)
 Set a DeleteHandler to which deletion of all referenced counted objects will be delegated.
static DeleteHandlergetDeleteHandler ()
 Get a DeleteHandler.
- 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 virtue methods, concrete examples of how to do this can be seen in the LineSegmentIntersector.


Member Enumeration Documentation

Enumerator:
WINDOW 
PROJECTION 
VIEW 
MODEL 
Enumerator:
NO_LIMIT 
LIMIT_ONE_PER_DRAWABLE 
LIMIT_ONE 
LIMIT_NEAREST 

Constructor & Destructor Documentation

osgUtil::Intersector::Intersector ( CoordinateFrame  cf = MODEL)
inline

Member Function Documentation

virtual Intersector* osgUtil::Intersector::clone ( osgUtil::IntersectionVisitor iv)
pure virtual
virtual bool osgUtil::Intersector::containsIntersections ( )
pure virtual
void osgUtil::Intersector::decrementDisabledCount ( )
inline

References _disabledCount.

bool osgUtil::Intersector::disabled ( ) const
inline

References _disabledCount.

virtual bool osgUtil::Intersector::enter ( const osg::Node node)
pure virtual
CoordinateFrame osgUtil::Intersector::getCoordinateFrame ( ) const
inline

References _coordinateFrame.

IntersectionLimit osgUtil::Intersector::getIntersectionLimit ( ) const
inline

References _intersectionLimit.

void osgUtil::Intersector::incrementDisabledCount ( )
inline

References _disabledCount.

virtual void osgUtil::Intersector::intersect ( osgUtil::IntersectionVisitor iv,
osg::Drawable drawable 
)
pure virtual
virtual void osgUtil::Intersector::leave ( )
pure virtual
bool osgUtil::Intersector::reachedLimit ( )
inline
virtual void osgUtil::Intersector::reset ( )
inlinevirtual
void osgUtil::Intersector::setCoordinateFrame ( CoordinateFrame  cf)
inline

References _coordinateFrame.

void osgUtil::Intersector::setIntersectionLimit ( IntersectionLimit  limit)
inline

References _intersectionLimit.


Member Data Documentation

CoordinateFrame osgUtil::Intersector::_coordinateFrame
protected
unsigned int osgUtil::Intersector::_disabledCount
protected
IntersectionLimit osgUtil::Intersector::_intersectionLimit
protected

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

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Generated at Sat Jan 12 2013 03:07:36 for the OpenSceneGraph by doxygen 1.8.1.1.