<xs:complexType name="OffsetDepthType">
    <xs:sequence>
      <xs:element name="pos" minOccurs="0" type="gml:DirectPositionType"/>
      <xs:element name="offset" minOccurs="0" type="gml:LengthType"/>
      <xs:element name="depth" minOccurs="0" type="gml:LengthType"/>
      <xs:element name="minDepth" minOccurs="0" type="gml:LengthType"/>
      <xs:element name="maxDepth" minOccurs="0" type="gml:LengthType"/>
    </xs:sequence>
  </xs:complexType>