osgUtil::IntersectVisitor Class Reference

#include <IntersectVisitor.h>

Inheritance diagram for osgUtil::IntersectVisitor:

Collaboration 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, INTERSECTION_VISITOR }
Public Types inherited from osg::Object
enum	DataVariance { DYNAMIC, STATIC, UNSPECIFIED }

Public Member Functions
	IntersectVisitor ()
virtual	~IntersectVisitor ()
	META_NodeVisitor (osgUtil, IntersectVisitor) void reset()
void	addLineSegment (osg::LineSegment *seg)
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)
virtual osg::Vec3	getEyePoint () const
virtual float	getDistanceToEyePoint (const osg::Vec3 &pos, bool withLODScale) const
virtual void	apply (osg::Node &)
virtual void	apply (osg::Drawable &)
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)
	NodeVisitor (const NodeVisitor &nv, const osg::CopyOp &copyop=osg::CopyOp::SHALLOW_COPY)
virtual	~NodeVisitor ()
	META_Object (osg, NodeVisitor) virtual NodeVisitor *asNodeVisitor()
virtual const NodeVisitor *	asNodeVisitor () const
virtual void	reset ()
void	setVisitorType (VisitorType type)
VisitorType	getVisitorType () const
void	setTraversalNumber (unsigned int fn)
unsigned int	getTraversalNumber () const
void	setFrameStamp (FrameStamp *fs)
const FrameStamp *	getFrameStamp () const
void	setTraversalMask (Node::NodeMask mask)
Node::NodeMask	getTraversalMask () const
void	setNodeMaskOverride (Node::NodeMask mask)
Node::NodeMask	getNodeMaskOverride () const
bool	validNodeMask (const osg::Node &node) const
void	setTraversalMode (TraversalMode mode)
TraversalMode	getTraversalMode () const
void	traverse (Node &node)
void	pushOntoNodePath (Node *node)
void	popFromNodePath ()
NodePath &	getNodePath ()
const NodePath &	getNodePath () const
virtual osg::Vec3	getViewPoint () const
virtual float	getDistanceFromEyePoint (const Vec3 &, bool) const
virtual float	getDistanceToViewPoint (const Vec3 &, bool) const
virtual void	apply (Geometry &geometry)
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)
DatabaseRequestHandler *	getDatabaseRequestHandler ()
const DatabaseRequestHandler *	getDatabaseRequestHandler () const
void	setImageRequestHandler (ImageRequestHandler *handler)
ImageRequestHandler *	getImageRequestHandler ()
const ImageRequestHandler *	getImageRequestHandler () const
Public Member Functions inherited from osg::Object
	Object ()
	Object (bool threadSafeRefUnref)
	Object (const Object &, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
virtual Object *	cloneType () const =0
virtual Object *	clone (const CopyOp &) const =0
virtual bool	isSameKindAs (const Object *) const
virtual const char *	libraryName () const =0
virtual const char *	className () const =0
std::string	getCompoundClassName () const
virtual Node *	asNode ()
virtual const Node *	asNode () const
virtual NodeVisitor *	asNodeVisitor ()
virtual StateAttribute *	asStateAttribute ()
virtual const StateAttribute *	asStateAttribute () const
virtual Uniform *	asUniform ()
virtual const Uniform *	asUniform () const
virtual void	setThreadSafeRefUnref (bool threadSafe)
virtual void	setName (const std::string &name)
void	setName (const char *name)
const std::string &	getName () const
void	setDataVariance (DataVariance dv)
DataVariance	getDataVariance () const
virtual void	computeDataVariance ()
void	setUserDataContainer (osg::UserDataContainer *udc)
osg::UserDataContainer *	getUserDataContainer ()
const osg::UserDataContainer *	getUserDataContainer () const
osg::UserDataContainer *	getOrCreateUserDataContainer ()
virtual void	setUserData (Referenced *obj)
virtual Referenced *	getUserData ()
virtual const Referenced *	getUserData () const
template<typename T >
bool	getUserValue (const std::string &name, T &value) const
template<typename T >
void	setUserValue (const std::string &name, const T &value)
virtual void	resizeGLObjectBuffers (unsigned int)
virtual void	releaseGLObjects (osg::State *=0) const
template<typename T >
BoolValueObject UCharValueObject UShortValueObject UIntValueObject DoubleValueObject Vec3fValueObject Vec2dValueObject Vec4dValueObject PlaneValueObject MatrixdValueObject BoundingBoxdValueObject BoundingSpheredValueObject bool	getUserValue (const std::string &name, T &value) const
Public Member Functions inherited from osg::Referenced
	Referenced ()
	Referenced (bool threadSafeRefUnref)
	Referenced (const Referenced &)
Referenced &	operator= (const Referenced &)
bool	getThreadSafeRefUnref () const
OpenThreads::Mutex *	getRefMutex () const
int	ref () const
int	unref () const
int	unref_nodelete () const
int	referenceCount () const
ObserverSet *	getObserverSet () const
ObserverSet *	getOrCreateObserverSet () const
void	addObserver (Observer *observer) const
void	removeObserver (Observer *observer) const

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 Member Functions inherited from osg::Object
virtual	~Object ()
Protected Member Functions inherited from osg::Referenced
virtual	~Referenced ()
void	signalObserversAndDelete (bool signalDelete, bool doDelete) const
void	deleteUsingDeleteHandler () const

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< DatabaseRequestHandler >	_databaseRequestHandler
ref_ptr< ImageRequestHandler >	_imageRequestHandler
Protected Attributes inherited from osg::Object
std::string	_name
DataVariance	_dataVariance
osg::UserDataContainer *	_userDataContainer
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 ()
static void	setThreadSafeReferenceCounting (bool enableThreadSafeReferenceCounting)
static bool	getThreadSafeReferenceCounting ()
static void	setDeleteHandler (DeleteHandler *handler)
static DeleteHandler *	getDeleteHandler ()

Detailed Description

Deprecated - use IntersectionVisitor instead.

Definition at line 93 of file IntersectVisitor.h.

Member Typedef Documentation

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

Definition at line 110 of file IntersectVisitor.h.

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

protected

Definition at line 193 of file IntersectVisitor.h.

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

Definition at line 111 of file IntersectVisitor.h.

Member Enumeration Documentation

enum osgUtil::IntersectVisitor::LODSelectionMode

Enumerator
USE_HIGHEST_LEVEL_OF_DETAIL
USE_SEGMENT_START_POINT_AS_EYE_POINT_FOR_LOD_LEVEL_SELECTION

Definition at line 121 of file IntersectVisitor.h.

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::Drawable &  )

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

Definition at line 113 of file IntersectVisitor.h.

LODSelectionMode osgUtil::IntersectVisitor::getLODSelectionMode ( ) const

inline

Definition at line 128 of file IntersectVisitor.h.

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

inline

Definition at line 115 of file IntersectVisitor.h.

LineSegmentHitListMap& osgUtil::IntersectVisitor::getSegHitList ( )

inline

Definition at line 117 of file IntersectVisitor.h.

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).

Definition at line 134 of file IntersectVisitor.h.

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

inline

Definition at line 127 of file IntersectVisitor.h.

Member Data Documentation

IntersectStateStack osgUtil::IntersectVisitor::_intersectStateStack

protected

Definition at line 195 of file IntersectVisitor.h.

LODSelectionMode osgUtil::IntersectVisitor::_lodSelectionMode

protected

Definition at line 199 of file IntersectVisitor.h.

osg::Vec3 osgUtil::IntersectVisitor::_pseudoEyePoint

protected

Definition at line 200 of file IntersectVisitor.h.

LineSegmentHitListMap osgUtil::IntersectVisitor::_segHitList

protected

Definition at line 197 of file IntersectVisitor.h.

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

• osg_head/include/osgUtil/IntersectVisitor.h