<xs:element name="XYZ" type="PointType"><xs:annotation><xs:documentation>The XYZ element is the Cartesian three-dimensional coordinates of the 3D point.</xs:documentation></xs:annotation></xs:element>
The optional size attribute defines a recommended size for visualization of an infinite drawable element such as plane, cylinder, axis, etc., or objects without explicit geometric parameters (e.g. coordinate system).
The optional transparency attribute defines the transparency property of a model entity.
Source
<xs:complexType name="PointAuxiliaryType"><xs:annotation><xs:documentation>The PointAuxiliaryType defines an auxiliary point.</xs:documentation></xs:annotation><xs:complexContent><xs:extension base="AuxiliaryBaseType"><xs:sequence><xs:element name="XYZ" type="PointType"><xs:annotation><xs:documentation>The XYZ element is the Cartesian three-dimensional coordinates of the 3D point.</xs:documentation></xs:annotation></xs:element></xs:sequence></xs:extension></xs:complexContent></xs:complexType>