osgUtil::LineSegmentIntersector Class Reference

Inheritance diagram for osgUtil::LineSegmentIntersector:

List of all members.

Public Types
typedef std::multiset < Intersection >	Intersections
Public Member Functions
	LineSegmentIntersector (const osg::Vec3d &start, const osg::Vec3d &end)
	LineSegmentIntersector (CoordinateFrame cf, const osg::Vec3d &start, const osg::Vec3d &end)
	LineSegmentIntersector (CoordinateFrame cf, double x, double y)
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 &	setEnd () 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
Classes
struct	Intersection

---

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

void osgUtil::LineSegmentIntersector::insertIntersection

(

const Intersection &

intersection

)

[inline]

Intersections& osgUtil::LineSegmentIntersector::getIntersections

(

)

[inline]

Intersection osgUtil::LineSegmentIntersector::getFirstIntersection

(

)

[inline]

void osgUtil::LineSegmentIntersector::setStart

(

const osg::Vec3d &

start

)

[inline]

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

(

)

const [inline]

void osgUtil::LineSegmentIntersector::setEnd

(

const osg::Vec3d &

end

)

[inline]

const osg::Vec3d& osgUtil::LineSegmentIntersector::setEnd

(

)

const [inline]

virtual Intersector* osgUtil::LineSegmentIntersector::clone

(

osgUtil::IntersectionVisitor &

iv

)

[virtual]

Implements osgUtil::Intersector.

virtual bool osgUtil::LineSegmentIntersector::enter

(

const osg::Node &

node

)

[virtual]

Implements osgUtil::Intersector.

virtual void osgUtil::LineSegmentIntersector::leave

(

)

[virtual]

Implements osgUtil::Intersector.

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

Implements osgUtil::Intersector.

virtual void osgUtil::LineSegmentIntersector::reset

(

)

[virtual]

Reimplemented from osgUtil::Intersector.

virtual bool osgUtil::LineSegmentIntersector::containsIntersections

(

)

[inline, virtual]

Implements osgUtil::Intersector.

bool osgUtil::LineSegmentIntersector::intersects

(

const osg::BoundingSphere &

bs

)

[protected]

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

---

Member Data Documentation

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

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

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

Intersections osgUtil::LineSegmentIntersector::_intersections [protected]

---

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

• LineSegmentIntersector