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openvrml::geometry_node Class Reference
[Nodes]

Inheritance diagram for openvrml::geometry_node:

Inheritance graph
[legend]
List of all members.

Detailed Description

Abstract base class for geometry nodes.


Public Member Functions

virtual ~geometry_node ()=0 throw ()
 Destroy.
viewer::object_t render_geometry (viewer &v, rendering_context context)
 Insert geometry into a viewer.
bool emissive () const throw ()
 Indicates whether the geometry should be drawn with the emissive color.
virtual const color_nodecolor () const throw ()
 Get the color node (if any) associated with this geometry.

Protected Member Functions

 geometry_node (const node_type &type, const boost::shared_ptr< openvrml::scope > &scope) throw ()
 Construct.

Private Member Functions

virtual viewer::object_t do_render_geometry (viewer &v, rendering_context context)
 render_geometry implementation.
virtual bool do_emissive () const throw ()
 emissive implementation.
virtual geometry_nodeto_geometry () throw ()
 Cast to a geometry_node.

Private Attributes

viewer::object_t geometry_reference
 Identifier for a geometry object in the renderer.

Constructor & Destructor Documentation

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

Destroy.

Todo:
Proper resource deallocation in the viewer depends on the viewer not having been decoupled from the browser. We need to handle this better via some refcounting scheme.

openvrml::geometry_node::geometry_node const node_type type,
const boost::shared_ptr< openvrml::scope > &  scope
throw () [protected]
 

Construct.

Parameters:
type the node_type associated with the node.
scope the Scope the node belongs to.

Member Function Documentation

viewer::object_t openvrml::geometry_node::render_geometry viewer v,
rendering_context  context
 

Insert geometry into a viewer.

Parameters:
v viewer.
context rendering context.
Returns:
object identifier for the inserted geometry.

bool openvrml::geometry_node::emissive  )  const throw ()
 

Indicates whether the geometry should be drawn with the emissive color.

Returns:
true if the geometry should be drawn with the emissive color; false otherwise (if the geometry should be drawn with the diffuse color).

const color_node * openvrml::geometry_node::color  )  const throw () [virtual]
 

Get the color node (if any) associated with this geometry.

Returns:
the color_node associated associated with this geometry, or 0 if there is no such node.
Todo:
Reevaluate the way the renderer visits geometry nodes; potentially eliminate this method.

Reimplemented in openvrml::vrml97_node::abstract_indexed_set_node.

viewer::object_t openvrml::geometry_node::do_render_geometry viewer v,
rendering_context  context
[private, virtual]
 

render_geometry implementation.

Parameters:
v viewer.
context rendering context.
Returns:
object identifier for the inserted geometry.

Reimplemented in openvrml::vrml97_node::box_node, openvrml::vrml97_node::cone_node, openvrml::vrml97_node::cylinder_node, openvrml::vrml97_node::elevation_grid_node, openvrml::vrml97_node::extrusion_node, openvrml::vrml97_node::indexed_face_set_node, openvrml::vrml97_node::indexed_line_set_node, openvrml::vrml97_node::point_set_node, openvrml::vrml97_node::sphere_node, and openvrml::vrml97_node::text_node.

bool openvrml::geometry_node::do_emissive  )  const throw () [private, virtual]
 

emissive implementation.

Returns:
false.

Reimplemented in openvrml::vrml97_node::indexed_line_set_node, and openvrml::vrml97_node::point_set_node.

geometry_node * openvrml::geometry_node::to_geometry  )  throw () [private, virtual]
 

Cast to a geometry_node.

Returns:
a pointer to this geometry_node.

Reimplemented from openvrml::node.


Member Data Documentation

viewer::object_t openvrml::geometry_node::geometry_reference [private]
 

Identifier for a geometry object in the renderer.