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LOD Class Reference

Represents LOD node instances. More...

Inheritance diagram for LOD:

List of all members.

Public Methods
	LOD (const NodeType &nodeType, const ScopePtr &scope)
	Constructor.
virtual	~LOD () throw ()
	Destructor.
virtual bool	isModified () const
	Determine whether the node has been modified.
virtual void	updateModified (NodePath &path, int flags=0x003)
	Propagate the bvolume dirty flag from children to parents.
virtual void	render (Viewer &viewer, VrmlRenderContext context)
	Render the node.
virtual const BVolume *	getBVolume () const
	Get the bounding volume.
Private Methods
void	processSet_level (const FieldValue &mfnode, double timestamp) throw (std::bad_cast, std::bad_alloc)
	set_level eventIn handler.
virtual void	recalcBSphere ()
	Recalculate the bounding volume.
Private Attributes
MFNode	level
SFVec3f	center
MFFloat	range
BSphere	bsphere
	Cached copy of the BSphere enclosing this node's children.
Friends
class	LODClass

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Detailed Description

Represents LOD node instances.

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Constructor & Destructor Documentation

LOD (  const NodeType &    nodeType, const ScopePtr &    scope )

Constructor. Parameters: nodeType  the NodeType associated with this node. scope  the Scope to which the node belongs.

~LOD (    )  throw () [virtual]

Destructor.

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Member Function Documentation

const BVolume * getBVolume (    )  const [virtual]

Get the bounding volume. Returns: the bounding volume associated with the node. Reimplemented from Node.

bool isModified (    )  const [virtual]

Determine whether the node has been modified. Returns: true if the node or one of its children has been modified, false otherwise. Reimplemented from Node.

void processSet_level (  const FieldValue &    mfnode, double    timestamp )  throw (std::bad_cast, std::bad_alloc) [private]

set_level eventIn handler. Parameters: mfnode  an MFNode value. timestamp  the current time. Exceptions: std::bad_cast  if mfnode is not an MFNode. std::bad_alloc  if memory allocation fails.

void recalcBSphere (    )  [private, virtual]

Recalculate the bounding volume.

void render (  Viewer &    viewer, VrmlRenderContext    context )  [virtual]

Render the node. Render one of the children. Parameters: viewer  a Viewer. context  a rendering context. Reimplemented from Node.

void updateModified (  NodePath &    path, int    flags = 0x003 )  [virtual]

Propagate the bvolume dirty flag from children to parents. Parameters: path  stack of ancestor nodes. flags  1 indicates normal modified flag, 2 indicates the bvolume dirty flag, 3 indicates both. Reimplemented from Node.

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Member Data Documentation

BSphere bsphere [private]

Cached copy of the BSphere enclosing this node's children.