<complexType name="GeometricComplexPropertyType">
    <annotation>
        <documentation>A property that has a geometric complex as its value domain can either be an appropriate geometry element encapsulated in an element of this type or an XLink reference to a remote geometry element (where remote includes geometry elements located elsewhere in the same document). Either the reference or the contained element must be given, but neither both nor none.
NOTE: The allowed geometry elements contained in such a property (or referenced by it) have to be modelled by an XML Schema choice element since the composites inherit both from geometric complex *and* geometric primitive and are already part of the _GeometricPrimitive substitution group.</documentation>
    </annotation>
    <choice minOccurs="0">
        <element ref="gml:GeometricComplex" />
        <element ref="gml:CompositeCurve" />
        <element ref="gml:CompositeSurface" />
        <element ref="gml:CompositeSolid" />
    </choice>
    <attributeGroup ref="gml:AssociationAttributeGroup">
        <annotation>
            <documentation>This attribute group includes the XLink attributes (see xlinks.xsd). XLink is used in GML to reference remote resources (including those elsewhere in the same document). A simple link element can be constructed by including a specific set of XLink attributes. The XML Linking Language (XLink) is currently a Proposed Recommendation of the World Wide Web Consortium. XLink allows elements to be inserted into XML documents so as to create sophisticated links between resources; such links can be used to reference remote properties.
A simple link element can be used to implement pointer functionality, and this functionality has been built into various GML 3 elements by including the gml:AssociationAttributeGroup.</documentation>
        </annotation>
    </attributeGroup>
</complexType>