<complexType name="AbstractCoordinateSystemType" abstract="true">
<annotation>
<documentation>A coordinate system (CS) is the set of coordinate system axes that spans a given coordinate space. A CS is derived from a set of (mathematical) rules for specifying how coordinates in a given space are to be assigned to points. The coordinate values in a coordinate tuple shall be recorded in the order in which the coordinate system axes associations are recorded, whenever those coordinates use a coordinate reference system that uses this coordinate system, and no other specification of axis order is provided. This abstract complexType shall not be used, extended, or restricted, in an Application Schema, to define a concrete subtype with a meaning equivalent to a concrete subtype specified in this document. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractCoordinateSystemBaseType">
<sequence>
<element ref="gml:csID" minOccurs="0" maxOccurs="unbounded" />
<element ref="gml:usesAxis" maxOccurs="unbounded" />
</sequence>
</extension>
</complexContent>
</complexType>
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