makVrv::Frustum< T > Class Template Reference

Template for 32/64 bit bit frustums. More...

Inheritance diagram for makVrv::Frustum< T >:

Public Member Functions
	Frustum ()
	ctor
virtual	~Frustum ()
	dtor
template<class RHS >
	Frustum (const Frustum< RHS > &rhs)
	Copy Constructor.
template<class RHS >
Frustum &	operator= (const Frustum< RHS > &rhs)
	Assignment Operator.
virtual void	setPlane (FrustumPlane plane, T d, const DtVector3< T > &vNormal)
	set a frustum plane
virtual const DtPlane< T > &	plane (FrustumPlane plane) const
	get a frustum plane
virtual DtVector4< T >	planeAsVector (FrustumPlane plane) const
	get the frustum plane as a vector
virtual bool	isVisible (const DtAxisAlignedBoundingBox< T > &box) const
	is bounding box visible within this frustum?
virtual bool	isSphereVisible (const DtVector3< T > &center, T radius) const
	is bounding sphere visible within this frustum?
virtual bool	isSphereVisibleRadiusSquared (const DtVector3< T > &center, double radiusSquared) const
	is bounding sphere (with a radius squared) visible within this frustum?
virtual VisibilityFromCamera	visibility (const DtAxisAlignedBoundingBox< T > &box, bool ignoreNearFar=false) const
	get visibility of bounding box within the frustum
virtual void	setFromModelViewProjectionMatrix (const DtMatrix4< T > &modelViewMat, const DtMatrix4< T > &projMat)
	set up a frustum, given a projection matrix and a view matrix the matrices are expected to be row-major (osg style)
virtual void	setFromModelViewProjectionMatrix (const DtMatrix4< T > &mvp)
	set up a frustum, given a model view projection matrix
virtual void	frustumPlanes (std::array< DtVector4< T >, 6 > &planes) const
	get the frustum planes as DtVector4's
virtual bool	operator== (const Frustum< T > &rhs) const
	equality
virtual bool	operator!= (const Frustum< T > &rhs) const
	inequality

Protected Member Functions
void	computePlaneFromPoints (DtPlane< T > &plane, const DtVector3< T > &point0, const DtVector3< T > &point1, const DtVector3< T > &point2) const
	Helper to compute a plane from 3 points.

Protected Attributes
std::array< DtPlane< T >, 6 >	myFrustumPlanes

Detailed Description

template<class T>
class makVrv::Frustum< T >

Template for 32/64 bit bit frustums.

Constructor & Destructor Documentation

template<class T >

makVrv::Frustum< T >::Frustum

(

)

ctor

template<class T >

makVrv::Frustum< T >::~Frustum ( )

virtual

dtor

template<class T >

template<class RHS >

makVrv::Frustum< T >::Frustum

(

const Frustum< RHS > &

rhs

)

Copy Constructor.

References makVrv::Frustum< T >::myFrustumPlanes.

Member Function Documentation

template<class T >

template<class RHS >

Frustum< T > & makVrv::Frustum< T >::operator=

(

const Frustum< RHS > &

rhs

)

Assignment Operator.

References makVrv::Frustum< T >::myFrustumPlanes.

template<class T>

void makVrv::Frustum< T >::setPlane ( FrustumPlane  plane, T  d, const DtVector3< T > &  vNormal  )

virtual

set a frustum plane

References makVrv::DtVector3< T >::normalize().

template<class T >

const DtPlane< T > & makVrv::Frustum< T >::plane ( FrustumPlane  plane ) const

virtual

get a frustum plane

Referenced by makVrv::operator<<(), and makVrv::DtCamera< T >::updateFrustumPlanes().

template<class T >

DtVector4< T > makVrv::Frustum< T >::planeAsVector ( FrustumPlane  plane ) const

virtual

get the frustum plane as a vector

template<class T>

bool makVrv::Frustum< T >::isVisible ( const DtAxisAlignedBoundingBox< T > &  box ) const

virtual

is bounding box visible within this frustum?

References makVrv::DtAxisAlignedBoundingBox< T >::center(), makVrv::DtAxisAlignedBoundingBox< T >::halfSize(), makVrv::DtAxisAlignedBoundingBox< T >::isInfinite(), makVrv::DtAxisAlignedBoundingBox< T >::isNull(), and makVrv::NEGATIVE_SIDE.

template<class T>

bool makVrv::Frustum< T >::isSphereVisible ( const DtVector3< T > &  center, T  radius  ) const

virtual

is bounding sphere visible within this frustum?

References makVrv::DtPlane< T >::d, makVrv::DtPlane< T >::vNormal, makVrv::DtVector3< T >::x, exprtk::details::x(), makVrv::DtVector3< T >::y, makVrv::DtVector3< T >::z, and exprtk::details::z.

template<class T>

bool makVrv::Frustum< T >::isSphereVisibleRadiusSquared ( const DtVector3< T > &  center, double  radiusSquared  ) const

virtual

is bounding sphere (with a radius squared) visible within this frustum?

References makVrv::DtPlane< T >::d, makVrv::DtPlane< T >::vNormal, makVrv::DtVector3< T >::x, exprtk::details::x(), makVrv::DtVector3< T >::y, makVrv::DtVector3< T >::z, and exprtk::details::z.

template<class T>

VisibilityFromCamera makVrv::Frustum< T >::visibility ( const DtAxisAlignedBoundingBox< T > &  box, bool  ignoreNearFar = false  ) const

virtual

get visibility of bounding box within the frustum

References makVrv::BOTH_SIDE, makVrv::DtAxisAlignedBoundingBox< T >::center(), makVrv::FRUSTUM_PLANE_FAR, makVrv::FRUSTUM_PLANE_NEAR, makVrv::DtAxisAlignedBoundingBox< T >::halfSize(), makVrv::DtAxisAlignedBoundingBox< T >::isInfinite(), makVrv::DtAxisAlignedBoundingBox< T >::isNull(), makVrv::NEGATIVE_SIDE, makVrv::VISIBILITY_FULL, makVrv::VISIBILITY_NONE, and makVrv::VISIBILITY_PARTIAL.

template<class T>

void makVrv::Frustum< T >::setFromModelViewProjectionMatrix ( const DtMatrix4< T > &  modelViewMat, const DtMatrix4< T > &  projMat  )

virtual

set up a frustum, given a projection matrix and a view matrix the matrices are expected to be row-major (osg style)

References makVrv::FRUSTUM_PLANE_BOTTOM, makVrv::FRUSTUM_PLANE_FAR, makVrv::FRUSTUM_PLANE_LEFT, makVrv::FRUSTUM_PLANE_NEAR, makVrv::FRUSTUM_PLANE_RIGHT, makVrv::FRUSTUM_PLANE_TOP, makVrv::DtMatrix4< T >::getInverse(), makVrv::DtVector4< T >::w, makVrv::DtVector4< T >::x, makVrv::DtVector3< T >::x, makVrv::DtVector4< T >::y, makVrv::DtVector3< T >::y, makVrv::DtVector4< T >::z, and makVrv::DtVector3< T >::z.

Referenced by makVrv::DtCamera< T >::updateFrustumPlanes().

template<class T>

void makVrv::Frustum< T >::setFromModelViewProjectionMatrix ( const DtMatrix4< T > &  mvp )

virtual

set up a frustum, given a model view projection matrix

References makVrv::FRUSTUM_PLANE_BOTTOM, makVrv::FRUSTUM_PLANE_FAR, makVrv::FRUSTUM_PLANE_LEFT, makVrv::FRUSTUM_PLANE_NEAR, makVrv::FRUSTUM_PLANE_RIGHT, makVrv::FRUSTUM_PLANE_TOP, and makVrv::vrvTacticalGraphicUtilities::length().

template<class T>

void makVrv::Frustum< T >::frustumPlanes ( std::array< DtVector4< T >, 6 > &  planes ) const

virtual

get the frustum planes as DtVector4's

References makVrv::DtPlane< T >::d, makVrv::DtPlane< T >::vNormal, makVrv::DtVector4< T >::w, makVrv::DtVector4< T >::x, makVrv::DtVector3< T >::x, makVrv::DtVector4< T >::y, makVrv::DtVector3< T >::y, makVrv::DtVector4< T >::z, and makVrv::DtVector3< T >::z.

template<class T>

bool makVrv::Frustum< T >::operator== ( const Frustum< T > &  rhs ) const

virtual

equality

References exprtk::details::numeric::equal(), and makVrv::Frustum< T >::myFrustumPlanes.

template<class T>

bool makVrv::Frustum< T >::operator!= ( const Frustum< T > &  rhs ) const

virtual

inequality

template<class T>

void makVrv::Frustum< T >::computePlaneFromPoints ( DtPlane< T > &  plane, const DtVector3< T > &  point0, const DtVector3< T > &  point1, const DtVector3< T > &  point2  ) const

protected

Helper to compute a plane from 3 points.

References makVrv::DtVector3< T >::crossProduct(), makVrv::DtPlane< T >::d, makVrv::DtVector3< T >::dotProduct(), makVrv::DtVector3< T >::length(), makVrv::vrvTacticalGraphicUtilities::length(), and makVrv::DtPlane< T >::vNormal.

Member Data Documentation

template<class T>

std::array< DtPlane<T>, 6 > makVrv::Frustum< T >::myFrustumPlanes

protected

Referenced by makVrv::Frustum< T >::Frustum(), makVrv::Frustum< T >::operator=(), and makVrv::Frustum< T >::operator==().

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

• DtCamera.h
• DtCamera.inl