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osgUtil::Intersector Class Referenceabstract
Inheritance diagram for osgUtil::Intersector:
osg::Referenced osgUtil::IntersectorGroup osgUtil::LineSegmentIntersector osgUtil::PlaneIntersector osgUtil::PolytopeIntersector osgUtil::RayIntersector

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 }
 

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 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 ()
 
void setPrecisionHint (PrecisionHint hint)
 
PrecisionHint getPrecisionHint () const
 
- Public Member Functions inherited from osg::Referenced
 Referenced ()
 
 Referenced (bool threadSafeRefUnref)
 
 Referenced (const Referenced &)
 
Referencedoperator= (const Referenced &)
 
virtual void setThreadSafeRefUnref (bool threadSafe)
 
bool getThreadSafeRefUnref () const
 
OpenThreads::MutexgetRefMutex () const
 
int ref () const
 
int unref () const
 
int unref_nodelete () const
 
int referenceCount () const
 
ObserverSetgetObserverSet () const
 
ObserverSetgetOrCreateObserverSet () const
 
void addObserver (Observer *observer) const
 
void removeObserver (Observer *observer) const
 

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::MutexgetGlobalReferencedMutex ()
 
static void setThreadSafeReferenceCounting (bool enableThreadSafeReferenceCounting)
 
static bool getThreadSafeReferenceCounting ()
 
static void setDeleteHandler (DeleteHandler *handler)
 
static DeleteHandlergetDeleteHandler ()
 
- 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.

Member Enumeration Documentation

Enumerator
WINDOW 
PROJECTION 
VIEW 
MODEL 
Enumerator
NO_LIMIT 
LIMIT_ONE_PER_DRAWABLE 
LIMIT_ONE 
LIMIT_NEAREST 

Hint to precision used in the internal intersections calculations.

Enumerator
USE_DOUBLE_CALCULATIONS 
USE_FLOAT_CALCULATIONS 

Constructor & Destructor Documentation

osgUtil::Intersector::Intersector ( CoordinateFrame  cf = MODEL,
IntersectionLimit  il = NO_LIMIT 
)
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
bool osgUtil::Intersector::disabled ( ) const
inline
virtual bool osgUtil::Intersector::enter ( const osg::Node node)
pure virtual
CoordinateFrame osgUtil::Intersector::getCoordinateFrame ( ) const
inline
IntersectionLimit osgUtil::Intersector::getIntersectionLimit ( ) const
inline
PrecisionHint osgUtil::Intersector::getPrecisionHint ( ) const
inline

Get the hint to what precision should be used in the intersections calculations.

void osgUtil::Intersector::incrementDisabledCount ( )
inline
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
void osgUtil::Intersector::setIntersectionLimit ( IntersectionLimit  limit)
inline
void osgUtil::Intersector::setPrecisionHint ( PrecisionHint  hint)
inline

Set the hint to what precision to use in the intersections calculations.

Member Data Documentation

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

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