osgUtil::LineSegmentIntersector Class Reference

Concrete class for implementing line intersections with the scene graph. More...

Inheritance diagram for osgUtil::LineSegmentIntersector:

List of all members.

Classes
struct	Intersection
Public Types
typedef std::multiset < Intersection >	Intersections
Public Member Functions
	LineSegmentIntersector (const osg::Vec3d &start, const osg::Vec3d &end)
	Construct a LineSegmentIntersector the runs between the specified start and end points in MODEL coordinates.
	LineSegmentIntersector (CoordinateFrame cf, const osg::Vec3d &start, const osg::Vec3d &end)
	Construct a LineSegmentIntersector the runs between the specified start and end points in the specified coordinate frame.
	LineSegmentIntersector (CoordinateFrame cf, double x, double y)
	Convenience constructor for supporting picking in WINDOW, or PROJECTION coordinates In WINDOW coordinates creates a start value of (x,y,0) and end value of (x,y,1).
void	insertIntersection (const Intersection &intersection)
Intersections &	getIntersections ()
Intersection	getFirstIntersection ()
void	setStart (const osg::Vec3d &start)
const osg::Vec3d &	getStart () const
void	setEnd (const osg::Vec3d &end)
const osg::Vec3d &	getEnd () const
virtual Intersector *	clone (osgUtil::IntersectionVisitor &iv)
virtual bool	enter (const osg::Node &node)
virtual void	leave ()
virtual void	intersect (osgUtil::IntersectionVisitor &iv, osg::Drawable *drawable)
virtual void	reset ()
virtual bool	containsIntersections ()
Protected Member Functions
bool	intersects (const osg::BoundingSphere &bs)
bool	intersectAndClip (osg::Vec3d &s, osg::Vec3d &e, const osg::BoundingBox &bb)
Protected Attributes
LineSegmentIntersector *	_parent
osg::Vec3d	_start
osg::Vec3d	_end
Intersections	_intersections

---

Detailed Description

Concrete class for implementing line intersections with the scene graph.

To be used in conjunction with IntersectionVisitor.

---

Member Typedef Documentation

typedef std::multiset<Intersection> osgUtil::LineSegmentIntersector::Intersections

---

Constructor & Destructor Documentation

osgUtil::LineSegmentIntersector::LineSegmentIntersector	(	const osg::Vec3d &	start,
		const osg::Vec3d &	end
	)

Construct a LineSegmentIntersector the runs between the specified start and end points in MODEL coordinates.

osgUtil::LineSegmentIntersector::LineSegmentIntersector	(	CoordinateFrame	cf,
		const osg::Vec3d &	start,
		const osg::Vec3d &	end
	)

Construct a LineSegmentIntersector the runs between the specified start and end points in the specified coordinate frame.

osgUtil::LineSegmentIntersector::LineSegmentIntersector	(	CoordinateFrame	cf,
		double	x,
		double	y
	)

Convenience constructor for supporting picking in WINDOW, or PROJECTION coordinates In WINDOW coordinates creates a start value of (x,y,0) and end value of (x,y,1).

In PROJECTION coordinates (clip space cube) creates a start value of (x,y,-1) and end value of (x,y,1). In VIEW and MODEL coordinates creates a start value of (x,y,0) and end value of (x,y,1).

---

Member Function Documentation

virtual Intersector* osgUtil::LineSegmentIntersector::clone

(

osgUtil::IntersectionVisitor &

iv

)

[virtual]

Implements osgUtil::Intersector.

virtual bool osgUtil::LineSegmentIntersector::containsIntersections

(

)

[inline, virtual]

Implements osgUtil::Intersector.

virtual bool osgUtil::LineSegmentIntersector::enter

(

const osg::Node &

node

)

[virtual]

Implements osgUtil::Intersector.

const osg::Vec3d& osgUtil::LineSegmentIntersector::getEnd

(

)

const [inline]

Intersection osgUtil::LineSegmentIntersector::getFirstIntersection

(

)

[inline]

Intersections& osgUtil::LineSegmentIntersector::getIntersections

(

)

[inline]

const osg::Vec3d& osgUtil::LineSegmentIntersector::getStart

(

)

const [inline]

void osgUtil::LineSegmentIntersector::insertIntersection

(

const Intersection &

intersection

)

[inline]

virtual void osgUtil::LineSegmentIntersector::intersect	(	osgUtil::IntersectionVisitor &	iv,
		osg::Drawable *	drawable
	)			[virtual]

Implements osgUtil::Intersector.

bool osgUtil::LineSegmentIntersector::intersectAndClip	(	osg::Vec3d &	s,
		osg::Vec3d &	e,
		const osg::BoundingBox &	bb
	)			[protected]

bool osgUtil::LineSegmentIntersector::intersects

(

const osg::BoundingSphere &

bs

)

[protected]

virtual void osgUtil::LineSegmentIntersector::leave

(

)

[virtual]

Implements osgUtil::Intersector.

virtual void osgUtil::LineSegmentIntersector::reset

(

)

[virtual]

Reimplemented from osgUtil::Intersector.

void osgUtil::LineSegmentIntersector::setEnd

(

const osg::Vec3d &

end

)

[inline]

void osgUtil::LineSegmentIntersector::setStart

(

const osg::Vec3d &

start

)

[inline]

---

Member Data Documentation

osg::Vec3d osgUtil::LineSegmentIntersector::_end [protected]

Intersections osgUtil::LineSegmentIntersector::_intersections [protected]

LineSegmentIntersector* osgUtil::LineSegmentIntersector::_parent [protected]

osg::Vec3d osgUtil::LineSegmentIntersector::_start [protected]

---

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

• osgUtil/LineSegmentIntersector