makVrv::DtTranslateOperator Class Reference

A particle operator to simply translate the particles each frame.

This class operates on each particle in a particle system by translating each particle in a given direction each frame. The translation amount, adjusted for delta-time since last frame, is added to the positions of each particle. The particles' given velocity is not effected. This operator can be used to simulate a simple wind effect on particle clouds such as smoke. No real physics is applied to the particles.

This particle operator is modeled after the osgParticle::AccelOperator found in the Open Scene Graph library.

Inheritance diagram for makVrv::DtTranslateOperator:

Public Member Functions
	DtTranslateOperator (const osg::Vec3 &vec=osg::Vec3(0.0f, 0.0f, 0.0f))
	DtTranslateOperator (const DtTranslateOperator &copy, const osg::CopyOp &copyop=osg::CopyOp::SHALLOW_COPY)
	META_Object (makVrv, DtTranslateOperator)
osg::Vec3 &	vector ()
const osg::Vec3 &	vector () const
void	setVector (const osg::Vec3 &vec)
void	operate (osgParticle::Particle *ptcl, double dt)
void	beginOperate (osgParticle::Program *prg)

Protected Member Functions
virtual	~DtTranslateOperator ()

Private Member Functions
DtTranslateOperator &	operator= (const DtTranslateOperator &)

Private Attributes
osg::Vec3	myVector
osg::Vec3	myXfVector

Constructor & Destructor Documentation

makVrv::DtTranslateOperator::DtTranslateOperator

(

const osg::Vec3 &

vec = osg::Vec3(0.0f, 0.0f, 0.0f)

)

Default constructor.

Parameters

[in]

vec

is the direction and magnitude for translation, in db-units per second.

makVrv::DtTranslateOperator::DtTranslateOperator	(	const DtTranslateOperator &	copy,
		const osg::CopyOp &	copyop = osg::CopyOp::SHALLOW_COPY
	)

Copy constructor.

Parameters

[in]	copy	is the object to copy from.
[in]	copyop	is a flag describing the type of copy.

virtual makVrv::DtTranslateOperator::~DtTranslateOperator ( )

protectedvirtual

Virtual destructor.

Member Function Documentation

makVrv::DtTranslateOperator::META_Object	(	makVrv	,
		DtTranslateOperator
	)

osg::Vec3& makVrv::DtTranslateOperator::vector ( )

inline

Get the current translation direction and magnitude.

Returns

A reference to the translation vector.

const osg::Vec3& makVrv::DtTranslateOperator::vector ( ) const

inline

void makVrv::DtTranslateOperator::setVector ( const osg::Vec3 &  vec )

inline

Set the current translation direction and magnitude.

Parameters

[in]

vec

is the direction and magnitude for translation, in db-units per second.

void makVrv::DtTranslateOperator::operate ( osgParticle::Particle *  ptcl, double  dt  )

inline

Apply the translation to a particle.

Parameters

[in]	ptcl	is the particle being operated on.
[in]	dt	is the delta time since last operation.

Note

Automatically called. Do not directly call this method.

void makVrv::DtTranslateOperator::beginOperate ( osgParticle::Program *  prg )

inline

Perform some initializations.

Parameters

[in]

prg

is the program which is calling this operator.

Note

Automatically called. Do not directly call this method.

DtTranslateOperator& makVrv::DtTranslateOperator::operator= ( const DtTranslateOperator &  )

private

Private copy operator to prevent assignment.

Member Data Documentation

osg::Vec3 makVrv::DtTranslateOperator::myVector

private

osg::Vec3 makVrv::DtTranslateOperator::myXfVector

private

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

• /data/exports/nrhent7-1/nightly/docs/vrForces.vrf5-1-branch/include/vrvOsg/DtTranslateOperator.h