osgUtil::PolytopeIntersector Class Reference

Inheritance diagram for osgUtil::PolytopeIntersector:

List of all members.

Public Types
typedef std::set< Intersection >	Intersections
Public Member Functions
	PolytopeIntersector (const osg::Polytope &polytope)
	PolytopeIntersector (CoordinateFrame cf, const osg::Polytope &polytope)
	PolytopeIntersector (CoordinateFrame cf, double xMin, double yMin, double xMax, double yMax)
void	insertIntersection (const Intersection &intersection)
Intersections &	getIntersections ()
Intersection	getFirstIntersection ()
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 Attributes
PolytopeIntersector *	_parent
osg::Polytope	_polytope
Intersections	_intersections
Classes
struct	Intersection

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Detailed Description

Concrent class for implementing polytope intersections with the scene graph. To be used in conjunction with IntersectionVisitor.

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Member Typedef Documentation

typedef std::set<Intersection> osgUtil::PolytopeIntersector::Intersections

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Constructor & Destructor Documentation

osgUtil::PolytopeIntersector::PolytopeIntersector

(

const osg::Polytope &

polytope

)

Construct a PolytopeIntersector using speified polytope in MODEL coordinates.

osgUtil::PolytopeIntersector::PolytopeIntersector	(	CoordinateFrame	cf,
		const osg::Polytope &	polytope
	)

Construct a PolytopeIntersector using speified polytope in specified coordinate frame.

osgUtil::PolytopeIntersector::PolytopeIntersector	(	CoordinateFrame	cf,
		double	xMin,
		double	yMin,
		double	xMax,
		double	yMax
	)

Convinience constructor for supporting picking in WINDOW, or PROJECTION coorindates In WINDOW coordinates (clip space cube) creates a five sided polytope box that has a front face at 0.0 and sides around box xMin, yMin, xMax, yMax. In PROJECTION coordinates (clip space cube) creates a five sided polytope box that has a front face at -1 and sides around box xMin, yMin, xMax, yMax. In VIEW and MODEL coordinates (clip space cube) creates a five sided polytope box that has a front face at 0.0 and sides around box xMin, yMin, xMax, yMax.

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Member Function Documentation

void osgUtil::PolytopeIntersector::insertIntersection

(

const Intersection &

intersection

)

[inline]

Intersections& osgUtil::PolytopeIntersector::getIntersections

(

)

[inline]

Intersection osgUtil::PolytopeIntersector::getFirstIntersection

(

)

[inline]

virtual Intersector* osgUtil::PolytopeIntersector::clone

(

osgUtil::IntersectionVisitor &

iv

)

[virtual]

Implements osgUtil::Intersector.

virtual bool osgUtil::PolytopeIntersector::enter

(

const osg::Node &

node

)

[virtual]

Implements osgUtil::Intersector.

virtual void osgUtil::PolytopeIntersector::leave

(

)

[virtual]

Implements osgUtil::Intersector.

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

Implements osgUtil::Intersector.

virtual void osgUtil::PolytopeIntersector::reset

(

)

[virtual]

Reimplemented from osgUtil::Intersector.

virtual bool osgUtil::PolytopeIntersector::containsIntersections

(

)

[inline, virtual]

Implements osgUtil::Intersector.

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Member Data Documentation

PolytopeIntersector* osgUtil::PolytopeIntersector::_parent [protected]

osg::Polytope osgUtil::PolytopeIntersector::_polytope [protected]

Intersections osgUtil::PolytopeIntersector::_intersections [protected]

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

• PolytopeIntersector

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