<xs:element name="Start" type="NaturalType">
  <xs:annotation>
    <xs:documentation>The Start element is the index number of the starting point in the range. The value of the Start element must be 1 or greater and smaller than the value of the Stop element.</xs:documentation>
  </xs:annotation>
</xs:element>

<xs:element name="Stop" type="NaturalType">
  <xs:annotation>
    <xs:documentation>The Stop element is the index number of the stopping point in the range. The value of the Stop element must be greater than the value of the Start element and less than or equal to the number of points in the feature measurement point list.</xs:documentation>
  </xs:annotation>
</xs:element>

<xs:complexType name="PointRangeType">
  <xs:annotation>
    <xs:documentation>The PointRangeType defines a range of point index numbers. The points at the start and stop indexes are included. Index numbers start at 1 for the first point on a feature.</xs:documentation>
  </xs:annotation>
  <xs:sequence>
    <xs:element name="Start" type="NaturalType">
      <xs:annotation>
        <xs:documentation>The Start element is the index number of the starting point in the range. The value of the Start element must be 1 or greater and smaller than the value of the Stop element.</xs:documentation>
      </xs:annotation>
    </xs:element>
    <xs:element name="Stop" type="NaturalType">
      <xs:annotation>
        <xs:documentation>The Stop element is the index number of the stopping point in the range. The value of the Stop element must be greater than the value of the Start element and less than or equal to the number of points in the feature measurement point list.</xs:documentation>
      </xs:annotation>
    </xs:element>
  </xs:sequence>
</xs:complexType>