openvrml::vrml97_node::lod_node Class Reference

Represents LOD node instances. More...

Inheritance diagram for openvrml::vrml97_node::lod_node:

[legend]Collaboration diagram for openvrml::vrml97_node::lod_node:


Public Member Functions
	lod_node (const node_type &type, const scope_ptr &scope)
	Construct.
virtual	~lod_node () throw ()
	Destroy.
virtual bool	modified () const
	Determine whether the node has been modified.
virtual void	render (openvrml::viewer &viewer, rendering_context context)
	Render the node.
virtual const openvrml::bounding_volume &	bounding_volume () const
	Get the bounding volume.
virtual const std::vector< node_ptr > &	children () const throw ()
	Get the children in the scene graph.
virtual void	activate (double timestamp, bool over, bool active, double *p)
Private Member Functions
void	process_set_level (const field_value &value, double timestamp) throw (std::bad_cast, std::bad_alloc)
	set_level eventIn handler.
virtual void	recalcBSphere ()
	Recalculate the bounding volume.
Private Attributes
mfnode	level
	level exposedField.
sfvec3f	center
	center field.
mffloat	range
	range field.
mfnode	children_
	Caches the active level for fast access by lod_node::children.
bounding_sphere	bsphere
	Cached copy of the bounding_sphere enclosing this node's children.
Friends
class	lod_class
	Class object for LOD nodes.

Detailed Description

Represents LOD node instances.

openvrml::vrml97_node::lod_node::lod_node	(	const node_type &	type,
		const scope_ptr &	scope
	)

Construct.

Parameters:

type	the node_type associated with this node.
scope	the scope to which the node belongs.

void openvrml::vrml97_node::lod_node::activate	(	double	time,
		bool	isOver,
		bool	isActive,
		double *	p
	)	`[virtual]`

Pass on to enabled touchsensor child.

const bounding_volume & openvrml::vrml97_node::lod_node::bounding_volume ( ) const [virtual]

Get the bounding volume.

Reimplemented from openvrml::node.

const std::vector< node_ptr > & openvrml::vrml97_node::lod_node::children ( ) const throw () [virtual]

Get the children in the scene graph.

bool openvrml::vrml97_node::lod_node::modified ( ) 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 openvrml::node.

void openvrml::vrml97_node::lod_node::process_set_level	(	const field_value &	value,
		double	timestamp
	)	throw (std::bad_cast, std::bad_alloc) `[private]`

set_level eventIn handler.

Parameters:

value	an mfnode value.
timestamp	the current time.

Exceptions:

std::bad_cast	if `value` is not an mfnode.
std::bad_alloc	if memory allocation fails.

void openvrml::vrml97_node::lod_node::render	(	openvrml::viewer &	viewer,
		rendering_context	context
	)	`[virtual]`

Render the node.

Render one of the children.

Parameters:

viewer	a Viewer.
context	a rendering context.

Reimplemented from openvrml::node.