osg::Geode Class Reference

A Geode is a "geometry node", that is, a leaf node on the scene graph that can have "renderable things" attached to it. More...

Inheritance diagram for osg::Geode:

List of all members.

Public Member Functions
	Geode ()
	Geode (const Geode &, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
	Copy constructor using CopyOp to manage deep vs shallow copy.
	META_Node (osg, Geode)
virtual Geode *	asGeode ()
	Convert 'this' into a Geode pointer if Node is a Geode, otherwise return 0.
virtual const Geode *	asGeode () const
	convert 'const this' into a const Geode pointer if Node is a Geode, otherwise return 0.
virtual bool	addDrawable (Drawable *drawable)
	Add a Drawable to the Geode.
virtual bool	removeDrawable (Drawable *drawable)
	Remove a Drawable from the Geode.
virtual bool	removeDrawables (unsigned int i, unsigned int numDrawablesToRemove=1)
	Remove Drawable(s) from the specified position in Geode's drawable list.
virtual bool	replaceDrawable (Drawable *origDraw, Drawable *newDraw)
	Replace specified Drawable with another Drawable.
virtual bool	setDrawable (unsigned int i, Drawable *drawable)
	Set Drawable at position i.
unsigned int	getNumDrawables () const
	Return the number of Drawables currently attached to the Geode.
Drawable *	getDrawable (unsigned int i)
	Return the Drawable at position i.
const Drawable *	getDrawable (unsigned int i) const
	Return the Drawable at position i.
bool	containsDrawable (const Drawable *drawable) const
	Return true if a given Drawable is contained within Geode.
unsigned int	getDrawableIndex (const Drawable *drawable) const
	Get the index number of drawable.
void	compileDrawables (RenderInfo &renderInfo)
	Compile OpenGL Display List for each drawable.
const BoundingBox &	getBoundingBox () const
	Return the Geode's bounding box, which is the union of all the bounding boxes of the geode's drawables.
virtual BoundingSphere	computeBound () const
	Compute the bounding sphere around Node's geometry or children.
Protected Member Functions
virtual	~Geode ()
Protected Attributes
osg::BoundingBox	_bbox

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Detailed Description

A Geode is a "geometry node", that is, a leaf node on the scene graph that can have "renderable things" attached to it.

In OSG, renderable things are represented by objects from the Drawable class, so a Geode is a Node whose purpose is grouping Drawables.

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Constructor & Destructor Documentation

osg::Geode::Geode

(

)

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

Copy constructor using CopyOp to manage deep vs shallow copy.

virtual osg::Geode::~Geode

(

)

[protected, virtual]

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Member Function Documentation

virtual bool osg::Geode::addDrawable

(

Drawable *

drawable

)

[virtual]

Add a Drawable to the Geode.

If drawable is not NULL and is not contained in the Geode then increment its reference count, add it to the drawables list and dirty the bounding sphere to force it to be recomputed on the next call to getBound().

Parameters:

drawable

The Drawable to be added to the Geode.

Returns:

true for success; false otherwise.

Reimplemented in osg::Billboard.

virtual Geode* osg::Geode::asGeode

(

)

[inline, virtual]

Convert 'this' into a Geode pointer if Node is a Geode, otherwise return 0.

Equivalent to dynamic_cast<Geode*>(this).

Reimplemented from osg::Node.

virtual const Geode* osg::Geode::asGeode

(

)

const [inline, virtual]

convert 'const this' into a const Geode pointer if Node is a Geode, otherwise return 0.

Equivalent to dynamic_cast<const Geode*>(this).

Reimplemented from osg::Node.

void osg::Geode::compileDrawables

(

RenderInfo &

renderInfo

)

Compile OpenGL Display List for each drawable.

virtual BoundingSphere osg::Geode::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::Group.

Reimplemented in osg::Billboard.

bool osg::Geode::containsDrawable

(

const Drawable *

drawable

)

const [inline]

Return true if a given Drawable is contained within Geode.

const BoundingBox& osg::Geode::getBoundingBox

(

)

const [inline]

Return the Geode's bounding box, which is the union of all the bounding boxes of the geode's drawables.

Drawable* osg::Geode::getDrawable

(

unsigned int

i

)

[inline]

Return the Drawable at position i.

References osg::Drawable::asDrawable().

Referenced by osgUtil::Simplifier::apply().

const Drawable* osg::Geode::getDrawable

(

unsigned int

i

)

const [inline]

Return the Drawable at position i.

References osg::Drawable::asDrawable().

unsigned int osg::Geode::getDrawableIndex

(

const Drawable *

drawable

)

const [inline]

Get the index number of drawable.

Returns:

A value between 0 and getNumDrawables()-1 if drawable is found; if not found, then getNumDrawables() is returned.

unsigned int osg::Geode::getNumDrawables

(

)

const [inline]

Return the number of Drawables currently attached to the Geode.

Referenced by osgUtil::Simplifier::apply().

osg::Geode::META_Node	(	osg	,
		Geode
	)

virtual bool osg::Geode::removeDrawable

(

Drawable *

drawable

)

[virtual]

Remove a Drawable from the Geode.

Equivalent to removeDrawable(getDrawableIndex(drawable).

Parameters:

drawable

The drawable to be removed.

Returns:

true if at least one Drawable was removed. false otherwise.

Reimplemented in osg::Billboard.

virtual bool osg::Geode::removeDrawables	(	unsigned int	i,
		unsigned int	numDrawablesToRemove = 1
	)		[virtual]

Remove Drawable(s) from the specified position in Geode's drawable list.

Parameters:

i	The index of the first Drawable to remove.
numDrawablesToRemove	The number of Drawable to remove.

Returns:

true if at least one Drawable was removed. false otherwise.

virtual bool osg::Geode::replaceDrawable	(	Drawable *	origDraw,
		Drawable *	newDraw
	)		[virtual]

Replace specified Drawable with another Drawable.

Equivalent to setDrawable(getDrawableIndex(origDraw),newDraw), see docs for setDrawable() for further details on implementation.

virtual bool osg::Geode::setDrawable	(	unsigned int	i,
		Drawable *	drawable
	)		[virtual]

Set Drawable at position i.

Decrement the reference count origGSet and increments the reference count of newGset, and dirty the bounding sphere to force it to recompute on next getBound() and returns true. If origDrawable is not found then return false and do not add newGset. If newGset is NULL then return false and do not remove origGset.

Returns:

true if set correctly, false on failure (if node==NULL || i is out of range).

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Member Data Documentation

osg::BoundingBox osg::Geode::_bbox [mutable, protected]

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

• osg/Geode