<complexType name="AbstractCurveType" abstract="true">
	<annotation>
		<documentation>An abstraction of a curve to support the different levels of complexity. The curve can always be viewed as a geometric 
		primitive, i.e. is continuous.</documentation>
	</annotation>
	<complexContent>
		<extension base="gml:AbstractGeometricPrimitiveType"/>
	</complexContent>
</complexType>