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NodeClass Class Reference

A class object for Node instances. More...

Inheritance diagram for NodeClass:

List of all members.

Public Methods
virtual	~NodeClass ()=0 throw ()
	Destructor.
virtual void	initialize (double time) throw ()
	NodeClass-specific initialization.
virtual void	render (Viewer &viewer) throw ()
	NodeClass-specific rendering.
virtual const NodeTypePtr	createType (const std::string &id, const NodeInterfaceSet &interfaces)=0 throw (UnsupportedInterface, std::bad_alloc)
	Create a new NodeType.
Public Attributes
Browser &	browser
	The Browser associated with this NodeClass.
Protected Methods
	NodeClass (Browser &browser) throw ()
	Constructor.

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Detailed Description

A class object for Node instances.

NodeClass can be thought of as a "supertype" of sorts. A given node implementation can support as many node types as there are unique combinations of the interfaces it supports. The most readily apparent role of the NodeClass object for a node implementation is to serve as a factory for these NodeTypes.

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Constructor & Destructor Documentation

~NodeClass (    )  throw () [pure virtual]

Destructor.

NodeClass (  Browser &    browser )  throw () [explicit, protected]

Constructor. A NodeClass is constructed using a Browser. All Node instances that share a particular NodeClass "belong to" the Browser associated with the NodeClass. Parameters: browser  the Browser to be associated with the NodeClass.

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Member Function Documentation

const NodeTypePtr createType (  const std::string &    id, const NodeInterfaceSet &    interfaces )  throw (UnsupportedInterface, std::bad_alloc) [pure virtual]

Create a new NodeType. NodeTypes can be said to subset the master type provided by the NodeClass. Each NodeClass instance can support certain node interfaces; the NodeInterfaceSet passed to createType must be a subset of those supported interfaces. Parameters: id  the name for the new NodeType. interfaces  a NodeInterfaceSet containing the interfaces for the new type. Returns: a NodeTypePtr to the newly created NodeType. Exceptions: std::invalid_argument  if the NodeClass cannot support one of the NodeInterfaces in interfaces. std::bad_alloc  if memory allocation fails. Implemented in ScriptNodeClass, GroupClass, AnchorClass, AppearanceClass, AudioClipClass, BackgroundClass, BillboardClass, BoxClass, CollisionClass, ColorClass, ColorInterpolatorClass, ConeClass, CoordinateClass, CoordinateInterpolatorClass, CylinderClass, CylinderSensorClass, DirectionalLightClass, ElevationGridClass, ExtrusionClass, FogClass, FontStyleClass, ImageTextureClass, IndexedFaceSetClass, IndexedLineSetClass, InlineClass, LODClass, MaterialClass, MovieTextureClass, NavigationInfoClass, NormalClass, NormalInterpolatorClass, OrientationInterpolatorClass, PixelTextureClass, PlaneSensorClass, PointLightClass, PointSetClass, PositionInterpolatorClass, ProximitySensorClass, ScalarInterpolatorClass, ShapeClass, SoundClass, SphereClass, SphereSensorClass, SpotLightClass, SwitchClass, TextClass, TextureCoordinateClass, TextureTransformClass, TimeSensorClass, TouchSensorClass, TransformClass, ViewpointClass, VisibilitySensorClass, and WorldInfoClass.

void initialize (  double    time )  throw () [virtual]

NodeClass-specific initialization. This method is called during initialization of a Browser object with a new root Scene. It is called after the individual node instances have been initialized, and before the world starts running. Parameters: time  the current time. Reimplemented in BackgroundClass, and FogClass.

void render (  Viewer &    viewer )  throw () [virtual]

NodeClass-specific rendering. The default implementation of this method does nothing. Parameters: viewer  the Viewer to render to. Reimplemented in BackgroundClass, and FogClass.

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Member Data Documentation

Browser & browser

The Browser associated with this NodeClass.