Home	Download	Screen shots	Discussion	Documentation

openvrml::vrml97_node::viewpoint_node Class Reference

Viewpoint node instance. More...

Inheritance diagram for openvrml::vrml97_node::viewpoint_node:

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

[legend]List of all members.

Public Member Functions
	viewpoint_node (const node_type &type, const scope_ptr &scope)
	Construct.
virtual	~viewpoint_node () throw ()
	Destroy.
virtual const mat4f &	transformation () const throw ()
	Get the transformation of the viewpoint_node in the global coordinate system.
virtual const mat4f &	user_view_transform () const throw ()
	Get the transformation of the user view relative to the viewpoint_node.
virtual void	user_view_transform (const mat4f &transform) throw ()
	Set the transformation of the user view relative to the viewpoint_node.
virtual const std::string &	description () const throw ()
	description accessor.
virtual float	field_of_view () const throw ()
	Get the field of view.
const sfrotation &	orientation () const
	orientation accessor.
const sfvec3f &	position () const
	position accessor.
Private Member Functions
virtual void	do_initialize (double timestamp) throw ()
	Initialize.
virtual void	do_relocate () throw (std::bad_alloc)
	Relocate.
virtual void	do_shutdown (double timestamp) throw ()
	Shut down.
void	process_set_bind (const field_value &value, double timestamp) throw (std::bad_cast, std::bad_alloc)
	set_bind eventIn handler.
void	process_set_fieldOfView (const field_value &value, double timestamp) throw (std::bad_cast)
	set_fieldOfView eventIn handler.
void	process_set_jump (const field_value &value, double timestamp) throw (std::bad_cast)
	set_jump eventIn handler.
void	process_set_orientation (const field_value &value, double timestamp) throw (std::bad_cast)
	set_orientation eventIn handler.
void	process_set_position (const field_value &value, double timestamp) throw (std::bad_cast)
	set_position eventIn handler.
void	update_final_transformation () const throw ()
	Update final_transformation.
Private Attributes
sffloat	fieldOfView
	fieldOfView exposedField.
sfbool	jump
	jump exposedField.
sfrotation	orientation_
	orientation exposedField.
sfvec3f	position_
	position exposedField.
sfstring	description_
	description field.
sfbool	bound
	isBound eventOut.
sftime	bindTime
	bindTime eventOut.
mat4f	parent_transform
	The accumulated transformation applied by any parent nodes.
mat4f	final_transformation
	The product of parent_transform and any transformation applied by the Viewpoint node.
bool	final_transformation_dirty
	Flag that indicates if final_transformation needs to be updated.
mat4f	user_view_transform_
	The transformation applied to the user view.
Friends
class	viewpoint_class
	Class object for Viewpoint instances.

---

Detailed Description

Viewpoint node instance.

---

Constructor & Destructor Documentation

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

Construct. Parameters: type  the node_type associated with the instance. scope  the scope that the new node will belong to. Reimplemented from openvrml::viewpoint_node.

---

Member Function Documentation

const std::string & openvrml::vrml97_node::viewpoint_node::description (   )  const throw () [virtual]

description accessor. Returns: the description. Implements openvrml::viewpoint_node.

void openvrml::vrml97_node::viewpoint_node::do_initialize (  double  timestamp  )  throw () [private, virtual]

Initialize. Parameters: timestamp  the current time. Reimplemented from openvrml::node.

void openvrml::vrml97_node::viewpoint_node::do_relocate (   )  throw (std::bad_alloc) [private, virtual]

Relocate. Exceptions: std::bad_alloc  if memory allocation fails. Reimplemented from openvrml::node.

void openvrml::vrml97_node::viewpoint_node::do_shutdown (  double  timestamp  )  throw () [private, virtual]

Shut down. Parameters: timestamp  the current time. Reimplemented from openvrml::node.

float openvrml::vrml97_node::viewpoint_node::field_of_view (   )  const throw () [virtual]

Get the field of view. Returns: the field of view in radians. Implements openvrml::viewpoint_node.

const sfrotation & openvrml::vrml97_node::viewpoint_node::orientation (   )  const

orientation accessor. Returns: the orientation.

const sfvec3f & openvrml::vrml97_node::viewpoint_node::position (   )  const

position accessor. Returns: the position.

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

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

void openvrml::vrml97_node::viewpoint_node::process_set_fieldOfView (  const field_value &  value, double  timestamp )  throw (std::bad_cast) [private]

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

void openvrml::vrml97_node::viewpoint_node::process_set_jump (  const field_value &  value, double  timestamp )  throw (std::bad_cast) [private]

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

void openvrml::vrml97_node::viewpoint_node::process_set_orientation (  const field_value &  value, double  timestamp )  throw (std::bad_cast) [private]

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

void openvrml::vrml97_node::viewpoint_node::process_set_position (  const field_value &  value, double  timestamp )  throw (std::bad_cast) [private]

set_position eventIn handler. Parameters: value  an sfvec3f value. timestamp  the current time. Exceptions: std::bad_cast  if value is not an sfvec3f value. std::bad_alloc  if memory allocation fails.

const mat4f & openvrml::vrml97_node::viewpoint_node::transformation (   )  const throw () [virtual]

Get the transformation of the viewpoint_node in the global coordinate system. Returns: the transformation of the viewpoint_node in the global coordinate system. Implements openvrml::viewpoint_node.

void openvrml::vrml97_node::viewpoint_node::update_final_transformation (   )  const throw () [private]

Update final_transformation. If final_transformation_dirty is true, update final_transformation and sets final_transformation_dirty to false; otherwise, do nothing.

void openvrml::vrml97_node::viewpoint_node::user_view_transform (  const mat4f &  transform  )  throw () [virtual]

Set the transformation of the user view relative to the viewpoint_node. Parameters: transform  the new transformation. Implements openvrml::viewpoint_node.

const mat4f & openvrml::vrml97_node::viewpoint_node::user_view_transform (   )  const throw () [virtual]

Get the transformation of the user view relative to the viewpoint_node. Returns: the transformation of the user view relative to the viewpoint_node. Implements openvrml::viewpoint_node.

---

Member Data Documentation

mat4f openvrml::vrml97_node::viewpoint_node::user_view_transform_ [private]

The transformation applied to the user view. Generally the result of any user navigation.