<complexType name="CoordinateSystemAxisType">
<complexContent>
<extension base="gml:IdentifiedObjectType">
<sequence>
<element ref="gml:axisAbbrev" />
<element ref="gml:axisDirection" />
<element ref="gml:minimumValue" minOccurs="0" />
<element ref="gml:maximumValue" minOccurs="0" />
<element ref="gml:rangeMeaning" minOccurs="0" />
</sequence>
<attribute name="uom" type="gml:UomIdentifier" use="required">
<annotation>
<documentation>The uom attribute provides an identifier of the unit of measure used for this coordinate system axis. The value of this coordinate in a coordinate tuple shall be recorded using this unit of measure, whenever those coordinates use a coordinate reference system that uses a coordinate system that uses this axis.</documentation>
</annotation>
</attribute>
</extension>
</complexContent>
</complexType>
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