Isis::BulletAllHitsRayCallback Class Reference

Bullet ray tracing callback to return all intersections along a ray's path. More...

#include <BulletAllHitsRayCallback.h>

Inheritance diagram for Isis::BulletAllHitsRayCallback:

Collaboration diagram for Isis::BulletAllHitsRayCallback:

Public Member Functions
	BulletAllHitsRayCallback ()
	Default constructor. More...
	BulletAllHitsRayCallback (const btVector3 &observer, const btVector3 &lookdir, const bool cullBackfacers=true)
	Construct a callback with a ray start and ray end. More...
virtual	~BulletAllHitsRayCallback ()
	Destroy this callback. More...
bool	isValid () const
	Checks if the callback is valid/has a valid intersection. More...
int	size () const
	Returns the number of intersections found. More...
btVector3	observer () const
	Return the beginning of the ray. More...
btVector3	lookdir () const
	Return the end of the ray. More...
const BulletClosestRayCallback &	hit (const int &index=0) const
	Return a callback for the intersection at a given index. More...

Protected Member Functions
virtual btScalar	addSingleResult (btCollisionWorld::LocalRayResult &rayResult, bool normalInWorldSpace)
	Add a local intersection result to this callback during ray casting. More...

Protected Attributes
QVector< BulletClosestRayCallback >	m_rayHits
	List of ray hits. More...

Detailed Description

Bullet ray tracing callback to return all intersections along a ray's path.

Author

2017-03-17 Kris Becker

Constructor & Destructor Documentation

BulletAllHitsRayCallback() [1/2]

Isis::BulletAllHitsRayCallback::BulletAllHitsRayCallback

(

)

Default constructor.

The ray beginning and end default to the origin. The intersections vector defaults to empty.

BulletAllHitsRayCallback() [2/2]

Isis::BulletAllHitsRayCallback::BulletAllHitsRayCallback	(	const btVector3 &	observer,
		const btVector3 &	lookdir,
		const bool	cullBackfacers = true
	)

Construct a callback with a ray start and ray end.

Parameters

observer	The beginning of the ray.
lookdir	The end of the ray.
cullBackfacers	If back facing intersections should be culled.

~BulletAllHitsRayCallback()

Isis::BulletAllHitsRayCallback::~BulletAllHitsRayCallback ( )

virtual

Destroy this callback.

Member Function Documentation

addSingleResult()

btScalar Isis::BulletAllHitsRayCallback::addSingleResult ( btCollisionWorld::LocalRayResult &  rayResult, bool  normalInWorldSpace  )

protectedvirtual

Add a local intersection result to this callback during ray casting.

Note

This method is called automatically by btCollisionWorld::rayTest.

Parameters

rayResult	The local intersection result for the ray cast.
normalInWorldSpace	If the normal stored in the local result is in local coordinates or world coordinates.

Returns

btScalar The hit fraction, fractional distance along the ray, of the intersections

References lookdir(), m_rayHits, and observer().

hit()

const BulletClosestRayCallback & Isis::BulletAllHitsRayCallback::hit

(

const int &

index = 0

)

const

Return a callback for the intersection at a given index.

Parameters

index

The index of the intersection.

Returns

BulletClosestRayCallback The callback for the intersection

References m_rayHits, and size().

Referenced by Isis::BulletShapeModel::localRadius().

isValid()

bool Isis::BulletAllHitsRayCallback::isValid

(

)

const

Checks if the callback is valid/has a valid intersection.

Returns

bool If there is a valid intersection.

See also

ClosestRayResultCallback::hasHit()

lookdir()

btVector3 Isis::BulletAllHitsRayCallback::lookdir

(

)

const

Return the end of the ray.

Returns

btVector3 The end of the ray.

Referenced by addSingleResult().

observer()

btVector3 Isis::BulletAllHitsRayCallback::observer

(

)

const

Return the beginning of the ray.

Returns

btVector3 The beginning of the ray.

Referenced by addSingleResult().

size()

int Isis::BulletAllHitsRayCallback::size

(

)

const

Returns the number of intersections found.

Returns

int The number of stored intersections in this callback.

References m_rayHits.

Referenced by hit().

Member Data Documentation

m_rayHits

QVector<BulletClosestRayCallback> Isis::BulletAllHitsRayCallback::m_rayHits

protected

List of ray hits.

Referenced by addSingleResult(), hit(), and size().

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

• /usgs/pkgs/isis3.9.0_docs/ISIS3/isis/src/base/objs/BulletShapeModel/BulletAllHitsRayCallback.h
• /usgs/pkgs/isis3.9.0_docs/ISIS3/isis/src/base/objs/BulletShapeModel/BulletAllHitsRayCallback.cpp