openvrml::node Class Reference

A node in the scene graph. More...

Inheritance diagram for openvrml::node:

[legend]Collaboration diagram for openvrml::node:


Public Types
typedef std::list< route >	routes_t
	list of routes.
Public Member Functions
virtual	~node ()=0 throw ()
	Destructor.
const std::string &	id () const throw ()
	Retrieve the name of this node.
void	id (const std::string &node_id) throw (std::bad_alloc)
	Set the name of the node.
const scope_ptr &	scope () const throw ()
	Get the scope to which the node belongs.
openvrml::scene *	scene () const throw ()
	Get the scene with which the node is associated.
std::ostream &	print (std::ostream &out, size_t indent) const
	Pretty print.
void	add_eventout_is (const std::string &eventout_id, polled_eventout_value &eventout_value) throw (unsupported_interface, std::bad_alloc)
	Add a polled eventOut value.
void	initialize (openvrml::scene &scene, double timestamp) throw (std::bad_alloc)
	Initialize the node.
void	relocate () throw (std::bad_alloc)
	Called when the node is relocated to a new position in the scene graph.
const field_value &	field (const std::string &id) const throw (unsupported_interface)
	Generalized field accessor.
void	field (const std::string &id, const field_value &value) throw (unsupported_interface, std::bad_cast, std::bad_alloc)
	Generalized field mutator.
void	process_event (const std::string &id, const field_value &value, double timestamp) throw (unsupported_interface, std::bad_cast, std::bad_alloc)
	Process an event.
const field_value &	eventout (const std::string &id) const throw (unsupported_interface)
	Generalized eventOut accessor.
void	shutdown (double timestamp) throw ()
	Shut down the node.
virtual const script_node *	to_script () const throw ()
	Cast to a const script_node.
virtual script_node *	to_script () throw ()
	Cast to a script_node.
virtual const appearance_node *	to_appearance () const throw ()
	Cast to a const appearance_node.
virtual appearance_node *	to_appearance () throw ()
	Cast to an appearance_node.
virtual const child_node *	to_child () const throw ()
	Cast to a const child_node.
virtual child_node *	to_child () throw ()
	Cast to a child_node.
virtual const color_node *	to_color () const throw ()
	Cast to a const color_node.
virtual color_node *	to_color () throw ()
	Cast to a color_node.
virtual const coordinate_node *	to_coordinate () const throw ()
	Cast to a const CoordinateNode.
virtual coordinate_node *	to_coordinate () throw ()
	Cast to a coordinate_node.
virtual const font_style_node *	to_font_style () const throw ()
	Cast to a const FontStyleNode.
virtual font_style_node *	to_font_style () throw ()
	Cast to a font_style_node.
virtual const geometry_node *	to_geometry () const throw ()
	Cast to a const geometry_node.
virtual geometry_node *	to_geometry () throw ()
	Cast to a geometry_node.
virtual const grouping_node *	to_grouping () const throw ()
	Cast to a const grouping_node.
virtual grouping_node *	to_grouping () throw ()
	Cast to a grouping_node.
virtual const material_node *	to_material () const throw ()
	Cast to a const material_node.
virtual material_node *	to_material () throw ()
	Cast to a material_node.
virtual const normal_node *	to_normal () const throw ()
	Cast to a const normal_node.
virtual normal_node *	to_normal () throw ()
	Cast to a normal_node.
virtual const sound_source_node *	to_sound_source () const throw ()
	Cast to a const sound_source_node.
virtual sound_source_node *	to_sound_source () throw ()
	Cast to a sound_source_node.
virtual const texture_node *	to_texture () const throw ()
	Cast to a const texture_node.
virtual texture_node *	to_texture () throw ()
	Cast to a texture_node.
virtual const texture_coordinate_node *	to_texture_coordinate () const throw ()
	Cast to a const texture_coordinate_node.
virtual texture_coordinate_node *	to_texture_coordinate () throw ()
	Cast to a texture_coordinate_node.
virtual const texture_transform_node *	to_texture_transform () const throw ()
	Cast to a const texture_transform_node.
virtual texture_transform_node *	to_texture_transform () throw ()
	Cast to a texture_transform_node.
virtual const transform_node *	to_transform () const throw ()
	Cast to a const transform_node.
virtual transform_node *	to_transform () throw ()
	Cast to a transform_node.
virtual const viewpoint_node *	to_viewpoint () const throw ()
	Cast to a const viewpoint_node.
virtual viewpoint_node *	to_viewpoint () throw ()
	Cast to a viewpoint_node.
virtual vrml97_node::anchor_node *	to_anchor () const
	Cast to an anchor_node.
virtual vrml97_node::audio_clip_node *	to_audio_clip () const
	Cast to an audio_clip_node.
virtual vrml97_node::cylinder_sensor_node *	to_cylinder_sensor () const
	Cast to a cylinder_sensor_node.
virtual vrml97_node::abstract_light_node *	to_light () const
	Cast to an abstract_light_node.
virtual vrml97_node::movie_texture_node *	to_movie_texture () const
	Cast to a movie_texture_node.
virtual vrml97_node::navigation_info_node *	to_navigation_info () const
	Cast to a navigation_info_node.
virtual vrml97_node::plane_sensor_node *	to_plane_sensor () const
	Cast to a plane_sensor_node.
virtual vrml97_node::point_light_node *	to_point_light () const
	Cast to a point_light_node.
virtual vrml97_node::sphere_sensor_node *	to_sphere_sensor () const
	Cast to a sphere_sensor_node.
virtual vrml97_node::spot_light_node *	to_spot_light () const
	Cast to a spot_light_node.
virtual vrml97_node::time_sensor_node *	to_time_sensor () const
	Cast to a time_sensor_node.
virtual vrml97_node::touch_sensor_node *	to_touch_sensor () const
	Cast to a touch_sensor_node.
virtual bool	modified () const
	Determine whether the node has been modified.
void	modified (bool value)
	Set the modified flag.
virtual void	bounding_volume (const openvrml::bounding_volume &v)
virtual const openvrml::bounding_volume &	bounding_volume () const
	Get this node's bounding volume.
virtual void	bounding_volume_dirty (bool f)
virtual bool	bounding_volume_dirty () const
void	add_route (const std::string &from_eventout, const node_ptr &to_node, const std::string &to_eventin) throw (unsupported_interface, field_value_type_mismatch)
	Add a route from an eventOut of this node to an eventIn of another node.
void	delete_route (const std::string &from_eventout, const node_ptr &to_node, const std::string &to_eventin) throw ()
	Remove a route from an eventOut of this node to an eventIn of another node.
const routes_t &	routes () const
	Get the routes from this node.
virtual void	render (openvrml::viewer &viewer, rendering_context context)
	Render this node.
Public Attributes
const node_type &	type
	The type information object for the node.
Protected Member Functions
	node (const node_type &type, const scope_ptr &scope) throw ()
	Construct.
void	emit_event (const std::string &id, const field_value &value, double timestamp) throw (std::bad_cast, std::bad_alloc)
	Send an event from this node.
Private Types
typedef std::map< std::string, polled_eventout_value * >	eventout_is_map_t
	map of eventOut identifiers to polled_eventout_values.
Private Member Functions
	node (const node &)
	Construct a copy.
node &	operator= (const node &)
	Assign.
virtual void	do_initialize (double timestamp) throw (std::bad_alloc)
	node subclass-specific initialization.
virtual void	do_relocate () throw (std::bad_alloc)
	node subclass-specific relocation update.
virtual void	do_field (const std::string &id, const field_value &value)=0 throw (unsupported_interface, std::bad_cast, std::bad_alloc)
	Called by node::field to set a field.
virtual const field_value &	do_field (const std::string &id) const=0 throw (unsupported_interface)
	Called by node::field to get a field.
virtual void	do_process_event (const std::string &id, const field_value &value, double timestamp)=0 throw (unsupported_interface, std::bad_cast, std::bad_alloc)
	Called by node::process_event.
virtual const field_value &	do_eventout (const std::string &id) const=0 throw (unsupported_interface)
	Called by node::eventout.
virtual void	do_shutdown (double timestamp) throw ()
	node subclass-specific shut down.
Private Attributes
scope_ptr	scope_
	The scope to which the node belongs.
openvrml::scene *	scene_
	The scene with which the node is associated.
bool	modified_
	Indicate whether the node has been modified.
bool	bounding_volume_dirty_
	Indicate whether the node's cached bounding volume needs updating.
routes_t	routes_
	routes from the node.
eventout_is_map_t	eventout_is_map
	map of eventOut identifiers to polled_eventout_values.
Friends
std::ostream &	operator<< (std::ostream &out, const node &n)
	Stream output.

Detailed Description

A node in the scene graph.

Member Typedef Documentation

openvrml::node::eventout_is_map_t [private]

map of eventOut identifiers to polled_eventout_values.

For internal use only.

Constructor & Destructor Documentation

openvrml::node::~node ( ) throw () [pure virtual]

Destructor.

Remove node name (if any) from the scope.

openvrml::node::node	(	const node_type &	type,
		const scope_ptr &	scope
	)	throw () `[protected]`

Construct.

Parameters:

type	the node_type associated with the instance.
scope	the Scope associated with the instance.

openvrml::node::node ( const node & ) [private]

Construct a copy.

For internal use only.

Not implemented. node is not copyable.

Member Function Documentation

void openvrml::node::add_eventout_is	(	const std::string &	eventout_id,
		polled_eventout_value &	eventout_value
	)	throw (unsupported_interface, std::bad_alloc)

Add a polled eventOut value.

Used internally by the PROTO implementation.

Parameters:

eventout_id	eventOut name.
eventout_value	a polled_eventout_value.

Exceptions:

unsupported_interface	if the node has no eventOut `eventout_id`.
std::bad_alloc	if memory allocation fails.

void openvrml::node::add_route	(	const std::string &	from_eventout,
		const node_ptr &	to_node,
		const std::string &	to_eventin
	)	throw (unsupported_interface, field_value_type_mismatch)

Add a route from an eventOut of this node to an eventIn of another node.

If the route being added already exists, this method has no effect.

Parameters:

from_eventout	an eventOut of the node.
to_node	a node.
to_eventin	an eventIn of `to_node`.

Exceptions:

unsupported_interface	if the node has no eventOut `from_eventout`; or if `to_node` has no eventIn `to_eventin`.
field_value_type_mismatch	if `from_eventout` and `to_eventin` have different field value types.

Precondition:: to_node is not null.

const bounding_volume & openvrml::node::bounding_volume ( ) const [virtual]

Get this node's bounding volume.

Nodes that have no bounding volume, or have a difficult to calculate bvolume (like, say, Extrusion or Billboard) can just return an infinite bsphere. Note that returning an infinite bvolume means that all the node's ancestors will also end up with an infinite bvolume, and will never be culled.

Returns:: a maximized bounding volume.

Reimplemented in openvrml::vrml97_node::group_node, openvrml::vrml97_node::anchor_node, openvrml::vrml97_node::box_node, openvrml::vrml97_node::indexed_face_set_node, openvrml::vrml97_node::lod_node, openvrml::vrml97_node::point_set_node, openvrml::vrml97_node::shape_node, openvrml::vrml97_node::sphere_node, openvrml::vrml97_node::switch_node, and openvrml::vrml97_node::transform_node.

void openvrml::node::bounding_volume ( const openvrml::bounding_volume & v ) [virtual]

Override a node's calculated bounding volume. Not implemented.

Todo:: Implement me!

bool openvrml::node::bounding_volume_dirty ( ) const [virtual]

Return true if the node's bounding volume needs to be recalculated.

void openvrml::node::bounding_volume_dirty ( bool f ) [virtual]

Indicate that a node's bounding volume needs to be recalculated (or not). If a node's bvolume is invalid, then the bvolumes of all that node's ancestors are also invalid. Normally, the node itself will determine when its bvolume needs updating.

void openvrml::node::delete_route	(	const std::string &	from_eventout,
		const node_ptr &	to_node,
		const std::string &	to_eventin
	)	throw ()

Remove a route from an eventOut of this node to an eventIn of another node.

If no such route exists, this method has no effect.

Parameters:

from_eventout	an eventOut of the node.
to_node	a node.
to_eventin	an eventIn of `to_node`.

const field_value & openvrml::node::do_eventout ( const std::string & id ) const throw (unsupported_interface) [private, pure virtual]

Called by node::eventout.

Parameters:

id	eventOut identifier.

Returns:: the last value sent from the eventOut.

Exceptions:

unsupported_interface if the node has no eventOut id.

Implemented in openvrml::script_node, and openvrml::vrml97_node::abstract_base.

const field_value & openvrml::node::do_field ( const std::string & id ) const throw (unsupported_interface) [private, pure virtual]

Called by node::field to get a field.

Parameters:

id	field identifier.

Returns:: the field value.

Exceptions:

unsupported_interface if the node has no field id.

Implemented in openvrml::script_node, and openvrml::vrml97_node::abstract_base.

void openvrml::node::do_field	(	const std::string &	id,
		const field_value &	value
	)	throw (unsupported_interface, std::bad_cast, std::bad_alloc) `[private, pure virtual]`

Called by node::field to set a field.

Parameters:

id	field identifier.
value	value.

Exceptions:

unsupported_interface	if the node has no field `id`.
std::bad_cast	if `value` is not the correct type.
std::bad_alloc	if memory allocation fails.

Implemented in openvrml::script_node, and openvrml::vrml97_node::abstract_base.

void openvrml::node::do_initialize ( double timestamp ) throw (std::bad_alloc) [private, virtual]

node subclass-specific initialization.

This method is called by node::initialize. Subclasses of node should override this method for any subclass-specific initialization.

The default implementation of this method does nothing.

Parameters:

timestamp

the current time.

Exceptions:

std::bad_alloc

if memory allocation fails.

Reimplemented in openvrml::script_node, openvrml::vrml97_node::audio_clip_node, openvrml::vrml97_node::background_node, openvrml::vrml97_node::fog_node, openvrml::vrml97_node::movie_texture_node, openvrml::vrml97_node::navigation_info_node, openvrml::vrml97_node::point_light_node, openvrml::vrml97_node::spot_light_node, openvrml::vrml97_node::text_node, openvrml::vrml97_node::time_sensor_node, and openvrml::vrml97_node::viewpoint_node.

void openvrml::node::do_process_event	(	const std::string &	id,
		const field_value &	value,
		double	timestamp
	)	throw (unsupported_interface, std::bad_cast, std::bad_alloc) `[private, pure virtual]`

Called by node::process_event.

Parameters:

id	eventIn identifier.
value	event value.
timestamp	the current time.

Exceptions:

unsupported_interface	if the node has no eventIn `id`.
std::bad_cast	if `value` is not the correct time.
std::bad_alloc	if memory allocation fails.

Implemented in openvrml::script_node, and openvrml::vrml97_node::abstract_base.

void openvrml::node::do_relocate ( ) throw (std::bad_alloc) [private, virtual]

node subclass-specific relocation update.

This method is called by node::relocate. Subclasses of node should override this method for any subclass-specific updates that need to be performed following relocation of a node to a new position in the scene graph (for example, updating a NodePath).

The default implementation of this method does nothing.

Reimplemented in openvrml::vrml97_node::viewpoint_node.

void openvrml::node::do_shutdown ( double timestamp ) throw () [private, virtual]

node subclass-specific shut down.

Parameters:

timestamp

the current time.

const field_value & openvrml::node::eventout

(

const std::string &

)

const throw (unsupported_interface)

Generalized eventOut accessor.

Parameters:

id	the name of the eventOut.

Exceptions:

unsupported_interface if the node has no eventOut named id.

void openvrml::node::field	(	const std::string &	id,
		const field_value &	value
	)	throw (unsupported_interface, std::bad_cast, std::bad_alloc)

Generalized field mutator.

Parameters:

id	the name of the field.
value	the new value.

Exceptions:

unsupported_interface	if the node has no field named `id`.
std::bad_cast	if `value` is not the correct type.
std::bad_alloc	if memory allocation fails.

Precondition:: value must be the appropriate type for the interface.

const field_value & openvrml::node::field

(

const std::string &

)

const throw (unsupported_interface)

Generalized field accessor.

Parameters:

id	the name of the field.

Returns:: the field value.

Exceptions:

unsupported_interface if the node has no field named id.

void openvrml::node::id

(

const std::string &

node_id

)

throw (std::bad_alloc)

Set the name of the node.

Parameters:

node_id

the name for the node.

Exceptions:

std::bad_alloc

if memory allocation fails.

const std::string & openvrml::node::id

(

)

const throw ()

Retrieve the name of this node.

Returns:: the node name.

void openvrml::node::initialize	(	openvrml::scene &	scene,
		double	timestamp
	)	throw (std::bad_alloc)

Initialize the node.

This method works recursively, initializing any child nodes to the same scene and timestamp. If the node has already been initialized, this method has no effect.

Parameters:

scene	the Scene to which the node will belong.
timestamp	the current time.

Exceptions:

std::bad_alloc

if memory allocation fails.

Postcondition:: scene points to scene.

void openvrml::node::modified

(

bool

value

)

Set the modified flag.

Indicates the node needs to be revisited for rendering.

Parameters:

value

bool openvrml::node::modified ( ) const [virtual]

Determine whether the node has been modified.

The default implementation returns whether this node has been modified. Subclasses that can have child nodes should override this method and return true if any of their children have been modified.

Returns:: true if the node has been modified; false otherwise.

Reimplemented in openvrml::vrml97_node::abstract_indexed_set_node, openvrml::vrml97_node::group_node, openvrml::vrml97_node::appearance_node, openvrml::vrml97_node::collision_node, openvrml::vrml97_node::elevation_grid_node, openvrml::vrml97_node::indexed_face_set_node, openvrml::vrml97_node::lod_node, openvrml::vrml97_node::point_set_node, openvrml::vrml97_node::shape_node, openvrml::vrml97_node::switch_node, and openvrml::vrml97_node::text_node.

node & openvrml::node::operator= ( const node & ) [private]

Assign.

For internal use only.

Not implemented. node is not copyable.

std::ostream & openvrml::node::print	(	std::ostream &	out,
		size_t	indent
	)	const

Pretty print.

Parameters:

out	output stream.
indent	number of spaces per indentation level.

Returns:: out.

void openvrml::node::process_event	(	const std::string &	id,
		const field_value &	value,
		double	timestamp
	)	throw (unsupported_interface, std::bad_cast, std::bad_alloc)

Process an event.

Parameters:

id	the name of the eventIn to which the event is being sent.
value	the new value.
timestamp	the current time.

Exceptions:

unsupported_interface	if the node has no eventIn named `id`.
std::bad_cast	if `value` is not the correct type.
std::bad_alloc	if memory allocation fails.

void openvrml::node::relocate

(

)

throw (std::bad_alloc)

Called when the node is relocated to a new position in the scene graph.

This function delegates to the virtual function do_relocate. relocate should be called by eventIn handlers that receive nodes.

Exceptions:

std::bad_alloc

if memory allocation fails.

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

Render this node.

Actually, most of the rendering work is delegated to the viewer, but this method is responsible for traversal to the node's renderable children, including culling. Each node class needs to implement this routine appropriately. It's not abstract since it doesn't make sense to call render on some nodes. Alternative would be to break render out into a seperate mixins class, but that's probably overkill.

Parameters:

viewer	viewer implementation responsible for actually doing the drawing.
context	generic context argument; holds things like the accumulated modelview transform.

const node::routes_t & openvrml::node::routes

(

)

const

Get the routes from this node.

Returns:: an std::vector of Routes from this node.

openvrml::scene * openvrml::node::scene ( ) const throw () [inline]

Get the scene with which the node is associated.

Returns:: the scene with which the node is associated.

const scope_ptr & openvrml::node::scope ( ) const throw () [inline]

Get the scope to which the node belongs.

Returns:: the scope to which the node belongs.

void openvrml::node::shutdown

(

double

timestamp

)

throw ()

Shut down the node.

This method works recursively, shutting down any child nodes. If the node has already been shut down, this method has no effect.

Parameters:

timestamp

the current time.

Postcondition:: scene is 0.

vrml97_node::anchor_node * openvrml::node::to_anchor ( ) const [virtual]

Cast to an anchor_node.

Returns:: 0.

Reimplemented in openvrml::vrml97_node::anchor_node.

appearance_node * openvrml::node::to_appearance ( ) throw () [virtual]

Cast to an appearance_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::appearance_node.

const appearance_node * openvrml::node::to_appearance ( ) const throw () [virtual]

Cast to a const appearance_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::appearance_node.

vrml97_node::audio_clip_node * openvrml::node::to_audio_clip ( ) const [virtual]

Cast to an audio_clip_node.

Returns:: 0.

Reimplemented in openvrml::vrml97_node::audio_clip_node.

child_node * openvrml::node::to_child ( ) throw () [virtual]

Cast to a child_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::child_node.

const child_node * openvrml::node::to_child ( ) const throw () [virtual]

Cast to a const child_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::child_node.

color_node * openvrml::node::to_color ( ) throw () [virtual]

Cast to a color_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::color_node.

const color_node * openvrml::node::to_color ( ) const throw () [virtual]

Cast to a const color_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::color_node.

coordinate_node * openvrml::node::to_coordinate ( ) throw () [virtual]

Cast to a coordinate_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::coordinate_node.

const coordinate_node * openvrml::node::to_coordinate ( ) const throw () [virtual]

Cast to a const CoordinateNode.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::coordinate_node.

vrml97_node::cylinder_sensor_node * openvrml::node::to_cylinder_sensor ( ) const [virtual]

Cast to a cylinder_sensor_node.

Returns:: 0.

Reimplemented in openvrml::vrml97_node::cylinder_sensor_node.

font_style_node * openvrml::node::to_font_style ( ) throw () [virtual]

Cast to a font_style_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::font_style_node.

const font_style_node * openvrml::node::to_font_style ( ) const throw () [virtual]

Cast to a const FontStyleNode.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::font_style_node.

geometry_node * openvrml::node::to_geometry ( ) throw () [virtual]

Cast to a geometry_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::geometry_node.

const geometry_node * openvrml::node::to_geometry ( ) const throw () [virtual]

Cast to a const geometry_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::geometry_node.

grouping_node * openvrml::node::to_grouping ( ) throw () [virtual]

Cast to a grouping_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::grouping_node.

const grouping_node * openvrml::node::to_grouping ( ) const throw () [virtual]

Cast to a const grouping_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::grouping_node.

vrml97_node::abstract_light_node * openvrml::node::to_light ( ) const [virtual]

Cast to an abstract_light_node.

Returns:: 0.

Reimplemented in openvrml::vrml97_node::abstract_light_node.

material_node * openvrml::node::to_material ( ) throw () [virtual]

Cast to a material_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::material_node.

const material_node * openvrml::node::to_material ( ) const throw () [virtual]

Cast to a const material_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::material_node.

vrml97_node::movie_texture_node * openvrml::node::to_movie_texture ( ) const [virtual]

Cast to a movie_texture_node.

Returns:: 0.

Reimplemented in openvrml::vrml97_node::movie_texture_node.

vrml97_node::navigation_info_node * openvrml::node::to_navigation_info ( ) const [virtual]

Cast to a navigation_info_node.

Returns:: 0.

Reimplemented in openvrml::vrml97_node::navigation_info_node.

normal_node * openvrml::node::to_normal ( ) throw () [virtual]

Cast to a normal_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::normal_node.

const normal_node * openvrml::node::to_normal ( ) const throw () [virtual]

Cast to a const normal_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::normal_node.

vrml97_node::plane_sensor_node * openvrml::node::to_plane_sensor ( ) const [virtual]

Cast to a plane_sensor_node.

Returns:: 0.

Reimplemented in openvrml::vrml97_node::plane_sensor_node.

vrml97_node::point_light_node * openvrml::node::to_point_light ( ) const [virtual]

Cast to a point_light_node.

Returns:: 0.

Reimplemented in openvrml::vrml97_node::point_light_node.

script_node * openvrml::node::to_script ( ) throw () [virtual]

Cast to a script_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::script_node.

const script_node * openvrml::node::to_script ( ) const throw () [virtual]

Cast to a const script_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::script_node.

sound_source_node * openvrml::node::to_sound_source ( ) throw () [virtual]

Cast to a sound_source_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::sound_source_node.

const sound_source_node * openvrml::node::to_sound_source ( ) const throw () [virtual]

Cast to a const sound_source_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::sound_source_node.

vrml97_node::sphere_sensor_node * openvrml::node::to_sphere_sensor ( ) const [virtual]

Cast to a sphere_sensor_node.

Returns:: 0.

Reimplemented in openvrml::vrml97_node::sphere_sensor_node.

vrml97_node::spot_light_node * openvrml::node::to_spot_light ( ) const [virtual]

Cast to a spot_light_node.

Returns:: 0.

Reimplemented in openvrml::vrml97_node::spot_light_node.

texture_node * openvrml::node::to_texture ( ) throw () [virtual]

Cast to a texture_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::texture_node.

const texture_node * openvrml::node::to_texture ( ) const throw () [virtual]

Cast to a const texture_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::texture_node.

texture_coordinate_node * openvrml::node::to_texture_coordinate ( ) throw () [virtual]

Cast to a texture_coordinate_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::texture_coordinate_node.

const texture_coordinate_node * openvrml::node::to_texture_coordinate ( ) const throw () [virtual]

Cast to a const texture_coordinate_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::texture_coordinate_node.

texture_transform_node * openvrml::node::to_texture_transform ( ) throw () [virtual]

Cast to a texture_transform_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::texture_transform_node.

const texture_transform_node * openvrml::node::to_texture_transform ( ) const throw () [virtual]

Cast to a const texture_transform_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::texture_transform_node.

vrml97_node::time_sensor_node * openvrml::node::to_time_sensor ( ) const [virtual]

Cast to a time_sensor_node.

Returns:: 0.

Reimplemented in openvrml::vrml97_node::time_sensor_node.

vrml97_node::touch_sensor_node * openvrml::node::to_touch_sensor ( ) const [virtual]

Cast to a touch_sensor_node.

Returns:: 0.

Reimplemented in openvrml::vrml97_node::touch_sensor_node.

transform_node * openvrml::node::to_transform ( ) throw () [virtual]

Cast to a transform_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::transform_node.

const transform_node * openvrml::node::to_transform ( ) const throw () [virtual]

Cast to a const transform_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::transform_node.

viewpoint_node * openvrml::node::to_viewpoint ( ) throw () [virtual]

Cast to a viewpoint_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::viewpoint_node.

const viewpoint_node * openvrml::node::to_viewpoint ( ) const throw () [virtual]

Cast to a const viewpoint_node.

Default implementation returns 0.

Returns:: 0

Reimplemented in openvrml::viewpoint_node.

Friends And Related Function Documentation

std::ostream& operator<<	(	std::ostream &	out,
		const node &	n
	)	`[friend]`

Stream output.

Parameters:

out	output stream.
n	a node.

Returns:: out.

Member Data Documentation

bool openvrml::node::bounding_volume_dirty_ [private]

Indicate whether the node's cached bounding volume needs updating.

For internal use only.

See also:: node::bounding_volume_dirty

node::eventout_is_map_t openvrml::node::eventout_is_map [private]

map of eventOut identifiers to polled_eventout_values.

For internal use only.

This is an ugly artifact of the PROTO implementation. When an eventOut of a node in a PROTO definition is IS'd to an eventOut in the PROTO definition, an entry is added to this map. When emitting an event, the node checks to see if any entries in the map need updating, thereby propagating the event out of the PROTO instance.

bool openvrml::node::modified_ [private]

Indicate whether the node has been modified.

For internal use only.