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# openvrml::appearance_node Class Reference
[Nodes]

Inheritance diagram for openvrml::appearance_node:

[legend]
List of all members.

## Detailed Description

Abstract base class for appearance nodes.

## Public Member Functions
virtual | ~appearance_node ()=0 throw ()
| Destroy.
void | render_appearance (viewer &v, rendering_context context)
| Insert appearance when rendering.
virtual const node_ptr & | material () const =0 throw ()
| Get the material node associated with this appearance node.
virtual const node_ptr & | texture () const =0 throw ()
| Get the texture node associated with this appearance node.
virtual const node_ptr & | texture_transform () const =0 throw ()
| Get the texture transform node associated with this appearance node.
## Protected Member Functions
| appearance_node (const node_type &type, const boost::shared_ptr< openvrml::scope > &scope) throw ()
| Construct.
## Private Member Functions
virtual appearance_node * | to_appearance () throw ()
| Cast to an appearance_node.
virtual void | do_render_appearance (viewer &v, rendering_context context)
| render_appearance implementation.

## Constructor & Destructor Documentation

openvrml::appearance_node::~appearance_node | ( |  | ) | throw ()`[pure virtual]`

| Destroy. Implemented in openvrml::vrml97_node::appearance_node.

openvrml::appearance_node::appearance_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.
Reimplemented in openvrml::vrml97_node::appearance_node.

## Member Function Documentation

void openvrml::appearance_node::render_appearance | ( | viewer & | v,
|  | rendering_context | context
| ) |

  | Insert appearance when rendering. Parameters:
  | v | viewer.
  | context | rendering_context.

const node_ptr & openvrml::appearance_node::material | ( |  | ) | const throw ()`[pure virtual]`

| Get the material node associated with this appearance node. Returns: the material_node associated with this appearance_node. Implemented in openvrml::vrml97_node::appearance_node.

const node_ptr & openvrml::appearance_node::texture | ( |  | ) | const throw ()`[pure virtual]`

| Get the texture node associated with this appearance node. Returns: the texture_node associated with this appearance_node. Implemented in openvrml::vrml97_node::appearance_node.

const node_ptr & openvrml::appearance_node::texture_transform | ( |  | ) | const throw ()`[pure virtual]`

| Get the texture transform node associated with this appearance node. Returns: the texture_transform_node associated with this appearance_node. Implemented in openvrml::vrml97_node::appearance_node.

appearance_node * openvrml::appearance_node::to_appearance | ( |  | ) | throw ()`[private, virtual]`

| Cast to an appearance_node. Returns: a pointer to this appearance_node. Reimplemented from openvrml::node.

void openvrml::appearance_node::do_render_appearance | ( | viewer & | v,
|  | rendering_context | context
| ) | `[private, virtual]`

  | render_appearance implementation. Parameters:
  | v | viewer.
  | context | rendering_context.
Reimplemented in openvrml::vrml97_node::appearance_node.