osg::Billboard Class Reference

Inheritance diagram for osg::Billboard:

Public Types
enum	Mode { POINT_ROT_EYE, POINT_ROT_WORLD, AXIAL_ROT }
typedef std::vector< Vec3 >	PositionList
Public Types inherited from osg::Geode
typedef std::vector< ref_ptr < Drawable > >	DrawableList
Public Types inherited from osg::Node
typedef std::vector< Group * >	ParentList
typedef unsigned int	NodeMask
typedef std::vector< std::string >	DescriptionList
Public Types inherited from osg::Object
enum	DataVariance { DYNAMIC, STATIC, UNSPECIFIED }

Public Member Functions
	Billboard ()
	Billboard (const Billboard &, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
	META_Node (osg, Billboard)
void	setMode (Mode mode)
Mode	getMode () const
void	setAxis (const Vec3 &axis)
const Vec3 &	getAxis () const
void	setNormal (const Vec3 &normal)
const Vec3 &	getNormal () const
void	setPosition (unsigned int i, const Vec3 &pos)
const Vec3 &	getPosition (unsigned int i) const
void	setPositionList (PositionList &pl)
PositionList &	getPositionList ()
const PositionList &	getPositionList () const
virtual bool	addDrawable (Drawable *gset)
virtual bool	addDrawable (Drawable *gset, const Vec3 &pos)
virtual bool	removeDrawable (Drawable *gset)
bool	computeMatrix (Matrix &modelview, const Vec3 &eye_local, const Vec3 &pos_local) const
virtual BoundingSphere	computeBound () const
Public Member Functions inherited from osg::Geode
	Geode ()
	Geode (const Geode &, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
	META_Node (osg, Geode)
virtual Geode *	asGeode ()
virtual const Geode *	asGeode () const
virtual bool	removeDrawables (unsigned int i, unsigned int numDrawablesToRemove=1)
virtual bool	replaceDrawable (Drawable *origDraw, Drawable *newDraw)
virtual bool	setDrawable (unsigned int i, Drawable *drawable)
unsigned int	getNumDrawables () const
Drawable *	getDrawable (unsigned int i)
const Drawable *	getDrawable (unsigned int i) const
bool	containsDrawable (const Drawable *gset) const
unsigned int	getDrawableIndex (const Drawable *drawable) const
const DrawableList &	getDrawableList () const
void	compileDrawables (RenderInfo &renderInfo)
const BoundingBox &	getBoundingBox () const
virtual void	setThreadSafeRefUnref (bool threadSafe)
virtual void	resizeGLObjectBuffers (unsigned int maxSize)
virtual void	releaseGLObjects (osg::State *=0) const
Public Member Functions inherited from osg::Node
	Node ()
	Node (const Node &, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
virtual Object *	cloneType () const
virtual Object *	clone (const CopyOp &copyop) const
virtual bool	isSameKindAs (const Object *obj) const
virtual const char *	libraryName () const
virtual const char *	className () const
virtual Group *	asGroup ()
virtual const Group *	asGroup () const
virtual Transform *	asTransform ()
virtual const Transform *	asTransform () const
virtual Switch *	asSwitch ()
virtual const Switch *	asSwitch () const
virtual osgTerrain::Terrain *	asTerrain ()
virtual const osgTerrain::Terrain *	asTerrain () const
virtual void	accept (NodeVisitor &nv)
virtual void	ascend (NodeVisitor &nv)
virtual void	traverse (NodeVisitor &)
const ParentList &	getParents () const
ParentList	getParents ()
Group *	getParent (unsigned int i)
const Group *	getParent (unsigned int i) const
unsigned int	getNumParents () const
NodePathList	getParentalNodePaths (osg::Node *haltTraversalAtNode=0) const
MatrixList	getWorldMatrices (const osg::Node *haltTraversalAtNode=0) const
void	setUpdateCallback (NodeCallback *nc)
NodeCallback *	getUpdateCallback ()
const NodeCallback *	getUpdateCallback () const
void	addUpdateCallback (NodeCallback *nc)
void	removeUpdateCallback (NodeCallback *nc)
unsigned int	getNumChildrenRequiringUpdateTraversal () const
void	setEventCallback (NodeCallback *nc)
NodeCallback *	getEventCallback ()
const NodeCallback *	getEventCallback () const
void	addEventCallback (NodeCallback *nc)
void	removeEventCallback (NodeCallback *nc)
unsigned int	getNumChildrenRequiringEventTraversal () const
void	setCullCallback (NodeCallback *nc)
NodeCallback *	getCullCallback ()
const NodeCallback *	getCullCallback () const
void	addCullCallback (NodeCallback *nc)
void	removeCullCallback (NodeCallback *nc)
void	setCullingActive (bool active)
bool	getCullingActive () const
unsigned int	getNumChildrenWithCullingDisabled () const
bool	isCullingActive () const
unsigned int	getNumChildrenWithOccluderNodes () const
bool	containsOccluderNodes () const
void	setNodeMask (NodeMask nm)
NodeMask	getNodeMask () const
void	setStateSet (osg::StateSet *stateset)
osg::StateSet *	getOrCreateStateSet ()
osg::StateSet *	getStateSet ()
const osg::StateSet *	getStateSet () const
void	setDescriptions (const DescriptionList &descriptions)
DescriptionList &	getDescriptions ()
const DescriptionList &	getDescriptions () const
const std::string &	getDescription (unsigned int i) const
std::string &	getDescription (unsigned int i)
unsigned int	getNumDescriptions () const
void	addDescription (const std::string &desc)
void	setInitialBound (const osg::BoundingSphere &bsphere)
const BoundingSphere &	getInitialBound () const
void	dirtyBound ()
const BoundingSphere &	getBound () const
void	setComputeBoundingSphereCallback (ComputeBoundingSphereCallback *callback)
ComputeBoundingSphereCallback *	getComputeBoundingSphereCallback ()
const ComputeBoundingSphereCallback *	getComputeBoundingSphereCallback () const
Public Member Functions inherited from osg::Object
	Object ()
	Object (bool threadSafeRefUnref)
	Object (const Object &, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
virtual void	setName (const std::string &name)
void	setName (const char *name)
const std::string &	getName () const
void	setDataVariance (DataVariance dv)
DataVariance	getDataVariance () const
virtual void	computeDataVariance ()
void	setUserDataContainer (osg::UserDataContainer *udc)
osg::UserDataContainer *	getUserDataContainer ()
const osg::UserDataContainer *	getUserDataContainer () const
osg::UserDataContainer *	getOrCreateUserDataContainer ()
virtual void	setUserData (Referenced *obj)
virtual Referenced *	getUserData ()
virtual const Referenced *	getUserData () const
template<typename T >
bool	getUserValue (const std::string &name, T &value) const
template<typename T >
void	setUserValue (const std::string &name, const T &value)
Public Member Functions inherited from osg::Referenced
	Referenced ()
	Referenced (bool threadSafeRefUnref)
	Referenced (const Referenced &)
Referenced &	operator= (const Referenced &)
bool	getThreadSafeRefUnref () const
OpenThreads::Mutex *	getRefMutex () const
int	ref () const
int	unref () const
int	unref_nodelete () const
int	referenceCount () const
ObserverSet *	getObserverSet () const
ObserverSet *	getOrCreateObserverSet () const
void	addObserver (Observer *observer) const
void	removeObserver (Observer *observer) const

Protected Types
enum	AxisAligned {   AXIAL_ROT_X_AXIS = AXIAL_ROT+1, AXIAL_ROT_Y_AXIS, AXIAL_ROT_Z_AXIS, POINT_ROT_WORLD_Z_AXIS,   CACHE_DIRTY }

Protected Member Functions
virtual	~Billboard ()
void	updateCache ()
Protected Member Functions inherited from osg::Geode
virtual	~Geode ()
Protected Member Functions inherited from osg::Node
virtual	~Node ()
void	addParent (osg::Group *node)
void	removeParent (osg::Group *node)
void	setNumChildrenRequiringUpdateTraversal (unsigned int num)
void	setNumChildrenRequiringEventTraversal (unsigned int num)
void	setNumChildrenWithCullingDisabled (unsigned int num)
void	setNumChildrenWithOccluderNodes (unsigned int num)
Protected Member Functions inherited from osg::Object
virtual	~Object ()
Protected Member Functions inherited from osg::Referenced
virtual	~Referenced ()
void	signalObserversAndDelete (bool signalDelete, bool doDelete) const
void	deleteUsingDeleteHandler () const

Protected Attributes
Mode	_mode
Vec3	_axis
Vec3	_normal
Matrix	_rotateNormalToZAxis
PositionList	_positionList
int	_cachedMode
Vec3	_side
Protected Attributes inherited from osg::Geode
osg::BoundingBox	_bbox
DrawableList	_drawables
Protected Attributes inherited from osg::Node
BoundingSphere	_initialBound
ref_ptr < ComputeBoundingSphereCallback >	_computeBoundCallback
BoundingSphere	_boundingSphere
bool	_boundingSphereComputed
ParentList	_parents
ref_ptr< NodeCallback >	_updateCallback
unsigned int	_numChildrenRequiringUpdateTraversal
ref_ptr< NodeCallback >	_eventCallback
unsigned int	_numChildrenRequiringEventTraversal
ref_ptr< NodeCallback >	_cullCallback
bool	_cullingActive
unsigned int	_numChildrenWithCullingDisabled
unsigned int	_numChildrenWithOccluderNodes
NodeMask	_nodeMask
ref_ptr< StateSet >	_stateset
Protected Attributes inherited from osg::Object
std::string	_name
DataVariance	_dataVariance
osg::UserDataContainer *	_userDataContainer
Protected Attributes inherited from osg::Referenced
OpenThreads::AtomicPtr	_observerSet
OpenThreads::Atomic	_refCount

Additional Inherited Members
Static Public Member Functions inherited from osg::Referenced
static OpenThreads::Mutex *	getGlobalReferencedMutex ()
static void	setThreadSafeReferenceCounting (bool enableThreadSafeReferenceCounting)
static bool	getThreadSafeReferenceCounting ()
static void	setDeleteHandler (DeleteHandler *handler)
static DeleteHandler *	getDeleteHandler ()

Detailed Description

Billboard is a derived form of Geode that orients its osg::Drawable children to face the eye point. Typical uses include trees and particle explosions,

Member Typedef Documentation

typedef std::vector<Vec3> osg::Billboard::PositionList

Type definition for pivot point position list.

Member Enumeration Documentation

enum osg::Billboard::AxisAligned

protected

Enumerator:

AXIAL_ROT_X_AXIS
AXIAL_ROT_Y_AXIS
AXIAL_ROT_Z_AXIS
POINT_ROT_WORLD_Z_AXIS
CACHE_DIRTY

enum osg::Billboard::Mode

Enumerator:

POINT_ROT_EYE
POINT_ROT_WORLD
AXIAL_ROT

Constructor & Destructor Documentation

osg::Billboard::Billboard

(

)

osg::Billboard::Billboard	(	const Billboard &	,
		const CopyOp &	copyop = CopyOp::SHALLOW_COPY
	)

Copy constructor using CopyOp to manage deep vs shallow copy.

virtual osg::Billboard::~Billboard ( )

protectedvirtual

Member Function Documentation

virtual bool osg::Billboard::addDrawable ( Drawable *  gset )

virtual

Add a Drawable with a default position of Vec3(0,0,0). Call the base-class Geode::addDrawble() to add the given Drawable gset as a child. If Geode::addDrawable() returns true, add the default position to the pivot point position list and return true. Otherwise, return false.

Reimplemented from osg::Geode.

virtual bool osg::Billboard::addDrawable ( Drawable *  gset, const Vec3 &  pos  )

virtual

Add a Drawable with a specified position. Call the base-class Geode::addDrawble() to add the given Drawable gset as a child. If Geode::addDrawable() returns true, add the given position pos to the pivot point position list and return true. Otherwise, return false.

virtual BoundingSphere osg::Billboard::computeBound ( ) const

virtual

Compute the bounding sphere around Node's geometry or children. This method is automatically called by getBound() when the bounding sphere has been marked dirty via dirtyBound().

Reimplemented from osg::Geode.

bool osg::Billboard::computeMatrix	(	Matrix &	modelview,
		const Vec3 &	eye_local,
		const Vec3 &	pos_local
	)		const

const Vec3& osg::Billboard::getAxis ( ) const

inline

Get the rotation axis.

Mode osg::Billboard::getMode ( ) const

inline

Get the billboard rotation mode.

const Vec3& osg::Billboard::getNormal ( ) const

inline

Get the front face direction normal.

const Vec3& osg::Billboard::getPosition ( unsigned int  i ) const

inline

Get the specified child Drawable's position.

PositionList& osg::Billboard::getPositionList ( )

inline

Get the list of pivot point positions.

const PositionList& osg::Billboard::getPositionList ( ) const

inline

Get a const list of pivot point positions.

osg::Billboard::META_Node	(	osg	,
		Billboard
	)

virtual bool osg::Billboard::removeDrawable ( Drawable *  gset )

virtual

Remove a Drawable and its associated position. If gset is a child, remove it, decrement its reference count, remove its pivot point position. and return true. Otherwise, return false.

Reimplemented from osg::Geode.

void osg::Billboard::setAxis

(

const Vec3 &

axis

)

Set the rotation axis for the billboard's child Drawables. Only utilized when mode==AXIAL_ROT.

void osg::Billboard::setMode

(

Mode

mode

)

Set the billboard rotation mode.

void osg::Billboard::setNormal

(

const Vec3 &

normal

)

This normal defines child Drawables' front face direction when unrotated.

void osg::Billboard::setPosition ( unsigned int  i, const Vec3 &  pos  )

inline

Set the specified child Drawable's position.

void osg::Billboard::setPositionList ( PositionList &  pl )

inline

Set the list of pivot point positions.

void osg::Billboard::updateCache ( )

protected

Member Data Documentation

Vec3 osg::Billboard::_axis

protected

int osg::Billboard::_cachedMode

protected

Mode osg::Billboard::_mode

protected

Vec3 osg::Billboard::_normal

protected

PositionList osg::Billboard::_positionList

protected

Matrix osg::Billboard::_rotateNormalToZAxis

protected

Vec3 osg::Billboard::_side

protected

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

• Billboard