OpenSceneGraph 2.8.3

osgUtil::IntersectVisitor Class Reference

Deprecated - use IntersectionVisitor instead. More...

Inheritance diagram for osgUtil::IntersectVisitor:

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 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)

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

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::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.

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.

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


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

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Generated at Tue Mar 22 2011 13:20:30 for the OpenSceneGraph by doxygen 1.7.3.