DEF

http://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/concepts.html#DEFL_USESemantics

Attribute Information

Used By

Attribute Group

Source

<xs:attribute name="DEF" type="xs:ID">
  <xs:annotation>
    <xs:appinfo>DEF defines a unique ID name for each node, referencable by other nodes.</xs:appinfo>
    <xs:documentation source="http://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/concepts.html#DEFL_USESemantics"/>
  </xs:annotation>
</xs:attribute>

Sample