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openvrml::vrml97_node::viewpoint_class Class Reference

Class object for Viewpoint nodes. More...

Inheritance diagram for openvrml::vrml97_node::viewpoint_class:

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

[legend]List of all members.

Public Member Functions
	viewpoint_class (openvrml::browser &browser)
	Construct.
virtual	~viewpoint_class () throw ()
	Destroy.
void	set_first (viewpoint_node &viewpoint) throw ()
	Set the first Viewpoint node in the world.
bool	has_first () const throw ()
	Check to see if the first node has been set.
void	bind (viewpoint_node &viewpoint, double timestamp) throw (std::bad_alloc)
	Push a Viewpoint on the top of the bound node stack.
void	unbind (viewpoint_node &viewpoint, double timestamp) throw ()
	Remove a Viewpoint from the bound node stack.
virtual void	initialize (openvrml::viewpoint_node *initial_viewpoint, double timestamp) throw ()
	node_class-specific initialization.
virtual const node_type_ptr	create_type (const std::string &id, const node_interface_set &) throw (unsupported_interface, std::bad_alloc)
	Create a node_type.
Private Types
typedef std::vector< viewpoint_node * >	bound_nodes_t
	A stack of bound Viewpoint nodes.
Private Attributes
viewpoint_node *	first
	The first Viewpoint node in the initial scene graph.
bound_nodes_t	bound_nodes
	The stack of bound Viewpoint nodes.

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Detailed Description

Class object for Viewpoint nodes.

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Constructor & Destructor Documentation

openvrml::vrml97_node::viewpoint_class::viewpoint_class (  openvrml::browser &  browser  )  [explicit]

Construct. Parameters: browser  the browser associated with this node_class.

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Member Function Documentation

void openvrml::vrml97_node::viewpoint_class::bind (  viewpoint_node &  viewpoint, double  timestamp )  throw (std::bad_alloc)

Push a Viewpoint on the top of the bound node stack. Parameters: viewpoint  the node to bind. timestamp  the current time. Exceptions: std::bad_alloc  if memory allocation fails.

const node_type_ptr openvrml::vrml97_node::viewpoint_class::create_type (  const std::string &  id, const node_interface_set &  interfaces )  throw (unsupported_interface, std::bad_alloc) [virtual]

Create a node_type. Parameters: id  the name for the new node_type. interfaces  the interfaces for the new node_type. Returns: a node_type_ptr to a node_type capable of creating Viewpoint nodes. Exceptions: unsupported_interface  if interfaces includes an interface not supported by viewpoint_class. std::bad_alloc  if memory allocation fails. Implements openvrml::node_class.

bool openvrml::vrml97_node::viewpoint_class::has_first (   )  const throw ()

Check to see if the first node has been set. This method is used by viewpoint_node::do_initialize. Returns: true if the first node has already been set; false otherwise.

void openvrml::vrml97_node::viewpoint_class::initialize (  openvrml::viewpoint_node *  initial_viewpoint, double  timestamp )  throw () [virtual]

node_class-specific initialization. Parameters: initial_viewpoint  the viewpoint_node that should be bound initially. timestamp  the current time. Reimplemented from openvrml::node_class.

void openvrml::vrml97_node::viewpoint_class::set_first (  viewpoint_node &  viewpoint  )  throw ()

Set the first Viewpoint node in the world. The first Viewpoint node in the world is used as the initial viewpoint. This method is used by viewpoint_node::do_initialize. Parameters: viewpoint  a Viewpoint node.

void openvrml::vrml97_node::viewpoint_class::unbind (  viewpoint_node &  viewpoint, double  timestamp )  throw ()

Remove a Viewpoint from the bound node stack. Parameters: viewpoint  the node to unbind. timestamp  the current time.