<simpleType name="CompassPointEnumeration">
  <annotation>
    <documentation>These directions are necessarily approximate, giving direction with a precision of 22.5°. It is thus generally unnecessary to specify the reference frame, though this may be detailed in the definition of a GML application language.</documentation>
  </annotation>
  <restriction base="string">
    <enumeration value="N"/>
    <enumeration value="NNE"/>
    <enumeration value="NE"/>
    <enumeration value="ENE"/>
    <enumeration value="E"/>
    <enumeration value="ESE"/>
    <enumeration value="SE"/>
    <enumeration value="SSE"/>
    <enumeration value="S"/>
    <enumeration value="SSW"/>
    <enumeration value="SW"/>
    <enumeration value="WSW"/>
    <enumeration value="W"/>
    <enumeration value="WNW"/>
    <enumeration value="NW"/>
    <enumeration value="NNW"/>
  </restriction>
</simpleType>