accessTypeNames

<xs:simpleType name="accessTypeNames">
  <xs:annotation>
    <xs:appinfo>accessTypeNames are allowed enumeration values for accessType. Prior names in VRML 97 were eventIn, eventOut, field, exposedField respectively.</xs:appinfo>
    <xs:documentation source="http://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/concepts.html#FieldSemantics"/>
  </xs:annotation>
  <xs:restriction base="xs:string">
    <xs:enumeration value="initializeOnly">
      <xs:annotation>
        <xs:appinfo>A field with accessType initializeOnly can be initialized, but cannot send or receive events.</xs:appinfo>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="inputOnly">
      <xs:annotation>
        <xs:appinfo>A field with accessType inputOnly cannot be initialized or included in a scene file, but can receive input event values via a ROUTE.</xs:appinfo>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="outputOnly">
      <xs:annotation>
        <xs:appinfo>A field with accessType outputOnly cannot be initialized or included in a scene file, but can send output event values via a ROUTE.</xs:appinfo>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="inputOutput">
      <xs:annotation>
        <xs:appinfo>A field with accessType inputOutput can be initialized, and can also send or receive events.</xs:appinfo>
      </xs:annotation>
    </xs:enumeration>
  </xs:restriction>
</xs:simpleType>