Metadata is used to identify the data relevant to X3D scenes and shapes, enabling the possibility of
further correlation, discovery and Web-based mashups to occur.
is about forms of data relating to other data.
For example, metadata can provide a variety of information regarding a document such as author, date revised, relevant key words, etc.
As another example, metadata might annotate X3D CAD geometry to provide key references such as part numbers, documentation references, inventory links, etc.
Simple name=value paired information can be provided in document
tags, just like in HTML.
Furthermore, typed metadata information can annotate any X3D node, either for use offline or for queries within an active scene graph at run time.
Persistent X3D metadata nodes include
(a set holder which contains a collection of other X3D Metadata nodes).
nodes are also persistent and retained after loading at run time, containing a scene title and other free-form information.
Comments might also contain useful information but typically are not required to be retained when files are loaded or converted.
Chapter 15 Metadata Information
from X3D for Web Authors is
available online via