vl::RayIntersector Class Reference

The RayIntersector class is used to detect the intersection points between a Ray and a set of Actor[s]. More...

#include <RayIntersector.hpp>

Inheritance diagram for vl::RayIntersector:

List of all members.

Public Member Functions
virtual const char *	className ()
	Returns the name of the class.
	RayIntersector ()
const ActorCollection *	actors () const
	The Actors against which the intersection test is performed.
ActorCollection *	actors ()
	The Actors against which the intersection test is performed.
const Ray &	ray () const
	The ray in world coordinates to be intersected with the actors().
void	setRay (const Ray &ray)
	The ray in world coordinates to be intersected with the actors().
const Frustum &	frustum () const
	The frustum in world coordinates used to cull the objects.
void	setFrustum (const Frustum &frustum)
	The frustum in world coordinates used to cull the objects.
const std::vector< ref < RayIntersection > > &	intersections () const
	The intersection points detected by the last intersect() call sorted according to their distance (the first one is the closest).
void	intersect ()
	Executes the intersection test.
void	intersect (const Ray &ray, SceneManager *scene_manager)
	Computes the intersections between the given ray and the Actor[s] contained in the given scene manager.
Protected Member Functions
void	intersect (Actor *act)
void	intersectGeometry (Actor *act, Geometry *geom)
template<class T >
void	intersectTriangle (const T &a, const T &b, const T &c, Actor *, Geometry *geom, Primitives *prim, int prim_idx)
template<class T >
void	intersectPolygon (const std::vector< T > &polygon, Actor *, Geometry *geom, Primitives *prim)
template<class T >
void	intersectQuad (const T &a, const T &b, const T &c, const T &d, Actor *, Geometry *geom, Primitives *prim, int prim_idx)
Static Protected Member Functions
static bool	sorter (const ref< RayIntersection > &a, const ref< RayIntersection > &b)
Protected Attributes
Frustum	mFrustum
std::vector< ref < RayIntersection > >	mIntersections
ref< ActorCollection >	mActors
Ray	mRay

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Detailed Description

The RayIntersector class is used to detect the intersection points between a Ray and a set of Actor[s].

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Constructor & Destructor Documentation

vl::RayIntersector::RayIntersector

(

)

[inline]

---

Member Function Documentation

virtual const char* vl::RayIntersector::className

(

)

[inline, virtual]

Returns the name of the class.

Reimplemented from vl::Object.

const ActorCollection* vl::RayIntersector::actors

(

)

const [inline]

The Actors against which the intersection test is performed.

ActorCollection* vl::RayIntersector::actors

(

)

[inline]

The Actors against which the intersection test is performed.

const Ray& vl::RayIntersector::ray

(

)

const [inline]

The ray in world coordinates to be intersected with the actors().

void vl::RayIntersector::setRay

(

const Ray &

ray

)

[inline]

The ray in world coordinates to be intersected with the actors().

const Frustum& vl::RayIntersector::frustum

(

)

const [inline]

The frustum in world coordinates used to cull the objects.

void vl::RayIntersector::setFrustum

(

const Frustum &

frustum

)

[inline]

The frustum in world coordinates used to cull the objects.

const std::vector< ref<RayIntersection> >& vl::RayIntersector::intersections

(

)

const [inline]

The intersection points detected by the last intersect() call sorted according to their distance (the first one is the closest).

void RayIntersector::intersect

(

)

Executes the intersection test.

Note:

Before calling this function the transforms and the bounding volumes of the Actor[s] to be intersected must be updated, in this order.

All the intersections are mande on the Actor's LOD level #0.

void RayIntersector::intersect	(	const Ray &	ray,
		SceneManager *	scene_manager
	)

Computes the intersections between the given ray and the Actor[s] contained in the given scene manager.

This is an utility function equivalent to:

 intersector->actors()->clear();
 scene_manager->appendActors( *intersector->actors() );
 intersector->setRay(ray);
 intersector->intersect();

static bool vl::RayIntersector::sorter	(	const ref< RayIntersection > &	a,
		const ref< RayIntersection > &	b
	)			[inline, static, protected]

void RayIntersector::intersect

(

Actor *

act

)

[protected]

void RayIntersector::intersectGeometry	(	Actor *	act,
		Geometry *	geom
	)			[protected]

template<class T >

void RayIntersector::intersectTriangle	(	const T &	a,
		const T &	b,
		const T &	c,
		Actor *	act,
		Geometry *	geom,
		Primitives *	prim,
		int	prim_idx
	)			[inline, protected]

template<class T >

void RayIntersector::intersectPolygon	(	const std::vector< T > &	polygon,
		Actor *	act,
		Geometry *	geom,
		Primitives *	prim
	)			[inline, protected]

template<class T >

void RayIntersector::intersectQuad	(	const T &	a,
		const T &	b,
		const T &	c,
		const T &	d,
		Actor *	act,
		Geometry *	geom,
		Primitives *	prim,
		int	prim_idx
	)			[inline, protected]

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Member Data Documentation

Frustum vl::RayIntersector::mFrustum [protected]

std::vector< ref<RayIntersection> > vl::RayIntersector::mIntersections [protected]

ref<ActorCollection> vl::RayIntersector::mActors [protected]

Ray vl::RayIntersector::mRay [protected]

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

• E:/VisualizationLibrary/Visualization_Library_SDK/src/vl/RayIntersector.hpp
• E:/VisualizationLibrary/Visualization_Library_SDK/src/vl/RayIntersector.cpp