osgUtil::PolytopeIntersector Class Reference

Concrent class for implementing polytope intersections with the scene graph. More...

Inheritance diagram for osgUtil::PolytopeIntersector:

[legend]

List of all members.

Public Types
typedef std::set < Intersection >	Intersections
Public Member Functions
	PolytopeIntersector (const osg::Polytope &polytope)
	Construct a PolytopeIntersector using speified polytope in MODEL coordinates.
	PolytopeIntersector (CoordinateFrame cf, const osg::Polytope &polytope)
	Construct a PolytopeIntersector using speified polytope in specified coordinate frame.
	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.
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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