<xs:element name="Contour">
<xs:annotation>
<xs:documentation>The contour is defined by an elevation attribute and a 2D north/east list of points that define the geometry.</xs:documentation>
<xs:documentation>is identified by the "name" attribute.</xs:documentation>
</xs:annotation>
<xs:complexType>
<xs:sequence>
<xs:element ref="PntList2D" />
<xs:element ref="Feature" minOccurs="0" maxOccurs="unbounded" />
<!-- Here PntList2D represents 2D planametric coordinate pairs expressed as space delimited Northing Easting pairs. -->
</xs:sequence>
<xs:attribute name="elev" type="xs:double" use="required" />
</xs:complexType>
</xs:element>
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