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Group Class Reference

Represents Group node instances. More...

Inheritance diagram for Group:

List of all members.

Public Methods
	Group (const NodeType &nodeType, const ScopePtr &scope)
	Constructor.
virtual	~Group () throw ()
	Destructor.
virtual Group *	toGroup () const
virtual bool	isModified () const
	Determine whether the node has been modified.
virtual void	updateModified (NodePath &path, int flags)
	Propagate the bvolume dirty flag from children to parents.
virtual void	render (Viewer &viewer, VrmlRenderContext context)
	Render the node.
virtual void	accumulateTransform (Node *)
	Accumulate transforms.
void	renderNoCull (Viewer &viewer, VrmlRenderContext context)
void	activate (double timeStamp, bool isOver, bool isActive, double *p)
virtual Node *	getParentTransform ()
const BVolume *	getBVolume () const
	Get the bounding volume.
Protected Methods
void	processAddChildren (const FieldValue &mfnode, double timestamp) throw (std::bad_cast, std::bad_alloc)
	addChildren eventIn handler.
void	processRemoveChildren (const FieldValue &mfnode, double timestamp) throw (std::bad_cast, std::bad_alloc)
	removeChildren eventIn handler.
void	processSet_children (const FieldValue &mfnode, double timestamp) throw (std::bad_cast, std::bad_alloc)
	set_children eventIn handler.
virtual void	recalcBSphere ()
	Recalculate the bounding volume.
Protected Attributes
SFVec3f	bboxCenter
SFVec3f	bboxSize
MFNode	children
SFString	relative
Node *	parentTransform
Viewer::Object	viewerObject
BSphere	bsphere
Friends
class	GroupClass

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Detailed Description

Represents Group node instances.

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Constructor & Destructor Documentation

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

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

~Group (    )  throw () [virtual]

Destructor.

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Member Function Documentation

void accumulateTransform (  Node *    parent )  [virtual]

Accumulate transforms. Cache a pointer to (one of the) parent transforms for proper rendering of bindables. Reimplemented from Node. Reimplemented in Billboard, and Transform.

void activate (  double    time, bool    isOver, bool    isActive, double *    p )

Pass on to enabled touchsensor child.

const BVolume * getBVolume (    )  const [virtual]

Get the bounding volume. Returns: the bounding volume associated with the node. Reimplemented from Node. Reimplemented in Anchor, and Transform.

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. Reimplemented in Collision.

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

addChildren eventIn handler. Parameters: mfnode  an MFNode containing nodes to add to this Group. timestamp  the current timestamp Exceptions: std::bad_cast  if mfnode is not an MFNode. std::bad_alloc  if memory allocation fails.

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

removeChildren eventIn handler. Parameters: mfnode  an MFNode containing nodes to remove from this Group. timestamp  the current timestamp Exceptions: std::bad_cast  if mfnode is not an MFNode. std::bad_alloc  if memory allocation fails.

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

set_children eventIn handler. Parameters: mfnode  an MFNode containing nodes for this Group. timestamp  the current timestamp Exceptions: std::bad_cast  if mfnode is not an MFNode. std::bad_alloc  if memory allocation fails.

void recalcBSphere (    )  [protected, virtual]

Recalculate the bounding volume. Construct a bounding sphere around this node's children. Store it in d_bsphere. Reimplemented in Transform.

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

Render the node. Render each of the children. Parameters: viewer  a Viewer. context  a rendering context. Reimplemented from Node. Reimplemented in Anchor, Billboard, and Transform.

void renderNoCull (  Viewer &    viewer, VrmlRenderContext    context )

because children will already have done the culling, we don't need to repeat it here.

void updateModified (  NodePath &    path, int    flags )  [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 [protected]

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