Deprecated - use IntersectionVisitor instead. More...

Inheritance diagram for osgUtil::IntersectVisitor:

Classes
class	IntersectState

Public Types
enum	LODSelectionMode { USE_HIGHEST_LEVEL_OF_DETAIL, USE_SEGMENT_START_POINT_AS_EYE_POINT_FOR_LOD_LEVEL_SELECTION }
typedef std::vector< Hit >	HitList
typedef std::map< const osg::LineSegment *, HitList >	LineSegmentHitListMap
Public Types inherited from osg::NodeVisitor
enum	TraversalMode { TRAVERSE_NONE, TRAVERSE_PARENTS, TRAVERSE_ALL_CHILDREN, TRAVERSE_ACTIVE_CHILDREN }
enum	VisitorType { NODE_VISITOR = 0, UPDATE_VISITOR, EVENT_VISITOR, COLLECT_OCCLUDER_VISITOR, CULL_VISITOR }

Public Member Functions
	IntersectVisitor ()
virtual	~IntersectVisitor ()
	META_NodeVisitor ("osgUtil","IntersectVisitor") void reset()
void	addLineSegment (osg::LineSegment *seg)
	Add a line segment to use for intersection testing during scene traversal.
HitList &	getHitList (const osg::LineSegment *seg)
int	getNumHits (const osg::LineSegment *seg)
LineSegmentHitListMap &	getSegHitList ()
bool	hits ()
void	setLODSelectionMode (LODSelectionMode mode)
LODSelectionMode	getLODSelectionMode () const
void	setEyePoint (const osg::Vec3 &eye)
	Set the eye point in local coordinates.
virtual osg::Vec3	getEyePoint () const
	Get the eye point in local coordinates.
virtual float	getDistanceToEyePoint (const osg::Vec3 &pos, bool withLODScale) const
	Get the distance from a point to the eye point, distance value in local coordinate system.
virtual void	apply (osg::Node &)
virtual void	apply (osg::Geode &node)
virtual void	apply (osg::Billboard &node)
virtual void	apply (osg::Group &node)
virtual void	apply (osg::Transform &node)
virtual void	apply (osg::Switch &node)
virtual void	apply (osg::LOD &node)
Public Member Functions inherited from osg::NodeVisitor
	NodeVisitor (TraversalMode tm=TRAVERSE_NONE)
	NodeVisitor (VisitorType type, TraversalMode tm=TRAVERSE_NONE)
virtual	~NodeVisitor ()
virtual const char *	libraryName () const
	return the library name/namespapce of the visitor's.
virtual const char *	className () const
	return the name of the visitor's class type.
virtual void	reset ()
	Method to call to reset visitor.
void	setVisitorType (VisitorType type)
	Set the VisitorType, used to distinguish different visitors during traversal of the scene, typically used in the Node::traverse() method to select which behaviour to use for different types of traversal/visitors.
VisitorType	getVisitorType () const
	Get the VisitorType.
void	setTraversalNumber (unsigned int fn)
	Set the traversal number.
unsigned int	getTraversalNumber () const
	Get the traversal number.
void	setFrameStamp (FrameStamp *fs)
	Set the FrameStamp that this traversal is associated with.
const FrameStamp *	getFrameStamp () const
	Get the FrameStamp that this traversal is associated with.
void	setTraversalMask (Node::NodeMask mask)
	Set the TraversalMask of this NodeVisitor.
Node::NodeMask	getTraversalMask () const
	Get the TraversalMask.
void	setNodeMaskOverride (Node::NodeMask mask)
	Set the NodeMaskOverride mask.
Node::NodeMask	getNodeMaskOverride () const
	Get the NodeMaskOverride mask.
bool	validNodeMask (const osg::Node &node) const
	Method to called by Node and its subclass' Node::accept() method, if the result is true it is used to cull operations of nodes and their subgraphs.
void	setTraversalMode (TraversalMode mode)
	Set the traversal mode for Node::traverse() to use when deciding which children of a node to traverse.
TraversalMode	getTraversalMode () const
	Get the traversal mode.
void	setUserData (Referenced *obj)
	Set user data, data must be subclassed from Referenced to allow automatic memory handling.
Referenced *	getUserData ()
	Get user data.
const Referenced *	getUserData () const
	Get const user data.
void	traverse (Node &node)
	Method for handling traversal of a nodes.
void	pushOntoNodePath (Node *node)
	Method called by osg::Node::accept() method before a call to the NodeVisitor::apply(..).
void	popFromNodePath ()
	Method called by osg::Node::accept() method after a call to NodeVisitor::apply(..).
NodePath &	getNodePath ()
	Get the non const NodePath from the top most node applied down to the current Node being visited.
const NodePath &	getNodePath () const
	Get the const NodePath from the top most node applied down to the current Node being visited.
virtual osg::Vec3	getViewPoint () const
	Get the view point in local coordinates.
virtual float	getDistanceFromEyePoint (const Vec3 &, bool) const
	Get the distance of a point from the eye point, distance value in the eye coordinate system.
virtual float	getDistanceToViewPoint (const Vec3 &, bool) const
	Get the distance from a point to the view point, distance value in local coordinate system.
virtual void	apply (ProxyNode &node)
virtual void	apply (Projection &node)
virtual void	apply (CoordinateSystemNode &node)
virtual void	apply (ClipNode &node)
virtual void	apply (TexGenNode &node)
virtual void	apply (LightSource &node)
virtual void	apply (Camera &node)
virtual void	apply (CameraView &node)
virtual void	apply (MatrixTransform &node)
virtual void	apply (PositionAttitudeTransform &node)
virtual void	apply (Sequence &node)
virtual void	apply (PagedLOD &node)
virtual void	apply (ClearNode &node)
virtual void	apply (OccluderNode &node)
virtual void	apply (OcclusionQueryNode &node)
void	setDatabaseRequestHandler (DatabaseRequestHandler *handler)
	Set the handler for database requests.
DatabaseRequestHandler *	getDatabaseRequestHandler ()
	Get the handler for database requests.
const DatabaseRequestHandler *	getDatabaseRequestHandler () const
	Get the const handler for database requests.
void	setImageRequestHandler (ImageRequestHandler *handler)
	Set the handler for image requests.
ImageRequestHandler *	getImageRequestHandler ()
	Get the handler for image requests.
const ImageRequestHandler *	getImageRequestHandler () const
	Get the const handler for image requests.
Public Member Functions inherited from osg::Referenced
	Referenced ()
	Referenced (bool threadSafeRefUnref)
	Referenced (const Referenced &)
Referenced &	operator= (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.
ObserverSet *	getObserverSet () const
	Get the ObserverSet if one is attached, otherwise return NULL.
ObserverSet *	getOrCreateObserverSet () 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 Types
typedef std::vector < osg::ref_ptr< IntersectState > >	IntersectStateStack

Protected Member Functions
bool	intersect (osg::Drawable &gset)
void	pushMatrix (osg::RefMatrix *matrix, osg::Transform::ReferenceFrame rf)
void	popMatrix ()
bool	enterNode (osg::Node &node)
void	leaveNode ()

Protected Attributes
IntersectStateStack	_intersectStateStack
LineSegmentHitListMap	_segHitList
LODSelectionMode	_lodSelectionMode
osg::Vec3	_pseudoEyePoint
Protected Attributes inherited from osg::NodeVisitor
VisitorType	_visitorType
unsigned int	_traversalNumber
ref_ptr< FrameStamp >	_frameStamp
TraversalMode	_traversalMode
Node::NodeMask	_traversalMask
Node::NodeMask	_nodeMaskOverride
NodePath	_nodePath
ref_ptr< Referenced >	_userData
ref_ptr< DatabaseRequestHandler >	_databaseRequestHandler
ref_ptr< ImageRequestHandler >	_imageRequestHandler
Protected Attributes inherited from osg::Referenced
OpenThreads::AtomicPtr	_observerSet
OpenThreads::Atomic	_refCount

Detailed Description

Deprecated - use IntersectionVisitor instead.

Member Typedef Documentation

typedef std::vector<Hit> osgUtil::IntersectVisitor::HitList

typedef std::vector<osg::ref_ptr<IntersectState> > osgUtil::IntersectVisitor::IntersectStateStack

protected

typedef std::map<const osg::LineSegment*,HitList > osgUtil::IntersectVisitor::LineSegmentHitListMap

Member Enumeration Documentation

enum osgUtil::IntersectVisitor::LODSelectionMode

Enumerator:

USE_HIGHEST_LEVEL_OF_DETAIL
USE_SEGMENT_START_POINT_AS_EYE_POINT_FOR_LOD_LEVEL_SELECTION

Constructor & Destructor Documentation

osgUtil::IntersectVisitor::IntersectVisitor ( )

virtual osgUtil::IntersectVisitor::~IntersectVisitor ( )

virtual

Member Function Documentation

void osgUtil::IntersectVisitor::addLineSegment ( osg::LineSegment * seg )

Add a line segment to use for intersection testing during scene traversal.

Note, a maximum of 32 line segments can be added to a IntersectVistor, adding more than this will result in warning being emitted to the console and the excess segments being ignored.

virtual void osgUtil::IntersectVisitor::apply ( osg::Node & )

virtual

Reimplemented from osg::NodeVisitor.

virtual void osgUtil::IntersectVisitor::apply ( osg::Geode & node )

virtual

Reimplemented from osg::NodeVisitor.

virtual void osgUtil::IntersectVisitor::apply ( osg::Billboard & node )

virtual

Reimplemented from osg::NodeVisitor.

virtual void osgUtil::IntersectVisitor::apply ( osg::Group & node )

virtual

Reimplemented from osg::NodeVisitor.

virtual void osgUtil::IntersectVisitor::apply ( osg::Transform & node )

virtual

Reimplemented from osg::NodeVisitor.

virtual void osgUtil::IntersectVisitor::apply ( osg::Switch & node )

virtual

Reimplemented from osg::NodeVisitor.

virtual void osgUtil::IntersectVisitor::apply ( osg::LOD & node )

virtual

Reimplemented from osg::NodeVisitor.

bool osgUtil::IntersectVisitor::enterNode ( osg::Node & node )

protected

virtual float osgUtil::IntersectVisitor::getDistanceToEyePoint	(	const osg::Vec3 &	pos,
		bool	withLODScale
	)		const

virtual

Get the distance from a point to the eye point, distance value in local coordinate system.

This is calculated using the pseudo-EyePoint (above) when doing LOD calculcations.

Reimplemented from osg::NodeVisitor.

virtual osg::Vec3 osgUtil::IntersectVisitor::getEyePoint ( ) const

virtual

Get the eye point in local coordinates.

Note, not all NodeVisitor implement this method, it is mainly cull visitors which will implement.

Reimplemented from osg::NodeVisitor.

HitList& osgUtil::IntersectVisitor::getHitList ( const osg::LineSegment * seg )

inline

LODSelectionMode osgUtil::IntersectVisitor::getLODSelectionMode ( ) const

inline

int osgUtil::IntersectVisitor::getNumHits ( const osg::LineSegment * seg )

inline

LineSegmentHitListMap& osgUtil::IntersectVisitor::getSegHitList ( )

inline

bool osgUtil::IntersectVisitor::hits ( )

bool osgUtil::IntersectVisitor::intersect ( osg::Drawable & gset )

protected

void osgUtil::IntersectVisitor::leaveNode ( )

protected

osgUtil::IntersectVisitor::META_NodeVisitor	(	"osgUtil"	,
		"IntersectVisitor"
	)

void osgUtil::IntersectVisitor::popMatrix ( )

protected

void osgUtil::IntersectVisitor::pushMatrix	(	osg::RefMatrix *	matrix,
		osg::Transform::ReferenceFrame	rf
	)

protected

void osgUtil::IntersectVisitor::setEyePoint ( const osg::Vec3 & eye )

inline

Set the eye point in local coordinates.

This is a pseudo-EyePoint for billboarding and LOD purposes. It is copied from the Start point of the most-recently-added segment of the intersection ray set (IntersectState::_segList).

void osgUtil::IntersectVisitor::setLODSelectionMode ( LODSelectionMode mode )

inline

Member Data Documentation

IntersectStateStack osgUtil::IntersectVisitor::_intersectStateStack

protected

LODSelectionMode osgUtil::IntersectVisitor::_lodSelectionMode

protected

osg::Vec3 osgUtil::IntersectVisitor::_pseudoEyePoint

protected

LineSegmentHitListMap osgUtil::IntersectVisitor::_segHitList

protected

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

osgUtil/IntersectVisitor

Classes

Public Types

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation