<xsd:complexType name="AbstractCoordinateSystemType" abstract="true" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<xsd:annotation>
<xsd: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. </xsd:documentation>
</xsd:annotation>
<xsd:complexContent>
<xsd:extension base="gml:AbstractCRSObjectType">
<xsd:sequence>
<xsd:element name="csID" type="gml:IdentifierType">
<xsd:annotation>
<xsd:documentation>Identification of this coordinate system. </xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="usesAxis" type="gml:CoordinateSystemAxisRefType" maxOccurs="unbounded">
<xsd:annotation>
<xsd:documentation>Associations to ordered list of Coordinate System Axes. </xsd:documentation>
</xsd:annotation>
</xsd:element>
</xsd:sequence>
</xsd:extension>
</xsd:complexContent>
</xsd:complexType>
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