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

Deprecated - use IntersectionVisitor instead. More...

Inheritance diagram for osgUtil::IntersectVisitor:
Inheritance graph
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List of all members.

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< HitHitList
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.
HitListgetHitList (const osg::LineSegment *seg)
int getNumHits (const osg::LineSegment *seg)
LineSegmentHitListMapgetSegHitList ()
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 FrameStampgetFrameStamp () 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.
ReferencedgetUserData ()
 Get user data.
const ReferencedgetUserData () 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(..).
NodePathgetNodePath ()
 Get the non const NodePath from the top most node applied down to the current Node being visited.
const NodePathgetNodePath () 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.
DatabaseRequestHandlergetDatabaseRequestHandler ()
 Get the handler for database requests.
const DatabaseRequestHandlergetDatabaseRequestHandler () const
 Get the const handler for database requests.
void setImageRequestHandler (ImageRequestHandler *handler)
 Set the handler for image requests.
ImageRequestHandlergetImageRequestHandler ()
 Get the handler for image requests.
const ImageRequestHandlergetImageRequestHandler () const
 Get the const handler for image requests.
- 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 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


Member Enumeration Documentation

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:

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Generated at Fri Nov 2 2012 21:42:50 for the OpenSceneGraph by doxygen 1.8.1.1.