|
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.
Metadata
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
<head>
and
<meta>
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.
X3D metadata nodes include
MetadataBoolean,
MetadataDouble,
MetadataFloat,
MetadataInteger,
MetadataString,
and
MetadataSet
(a set holder which contains a collection of other X3D Metadata nodes).
The supporting
Chapter 15 Metadata Information
from X3D for Web Authors is
available online via
X3dGraphics.com.
Also available:
|
|
