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<?xml version="1.0" encoding="UTF-8"?>
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<!-- Introduction                                                         -->
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<!-- Schema for a type library for darwin and extension data types.       -->
<!-- History:                                                             -->
<!--   version 0.5 2007-02-14 John Wieczorek                              -->
<!-- Status:                                                              -->
<!--   Ready for testing.                                                 -->
<!--   Should be placed in a tdwg shared data types library.              -->
<!--   See http://wiki.tdwg.org for current status of this standard       -->
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<!-- Schema                                                               -->
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<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="unqualified" version="0.5">

        <!-- ============================================================== -->
        <!-- Types                                                          -->
        <!-- ============================================================== -->
        <xs:simpleType name="positiveDouble">
          <xs:restriction base="xs:double">
            <xs:minExclusive value="0"/>
          </xs:restriction>
        </xs:simpleType>

        <xs:simpleType name="dayOfYearDataType">
          <xs:restriction base="xs:integer">
            <xs:minInclusive value="1"/>
            <xs:maxInclusive value="366"/>
          </xs:restriction>
        </xs:simpleType>

        <xs:simpleType name="decimalLatitudeDataType">
          <xs:restriction base="xs:double">
            <xs:minInclusive value="-90"/>
            <xs:maxInclusive value="90"/>
          </xs:restriction>
        </xs:simpleType>

        <xs:simpleType name="decimalLongitudeDataType">
          <xs:restriction base="xs:double">
            <xs:minInclusive value="-180"/>
            <xs:maxInclusive value="180"/>
          </xs:restriction>
        </xs:simpleType>

        <xs:simpleType name="spatialFitDataType">
          <xs:union>
            <xs:simpleType>
              <xs:restriction base="xs:double">
                <xs:minInclusive value="0"/>
                <xs:maxInclusive value="0"/>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:double">
                <xs:minInclusive value="1"/>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:NMTOKEN">
                <xs:enumeration value="undefined"/>
              </xs:restriction>
            </xs:simpleType>
          </xs:union>
        </xs:simpleType>

        <xs:simpleType name="DateTimeISO">
          <xs:annotation>
            <xs:documentation xml:lang="en">
              The date and time expressed in a way conforming to a subset of ISO 8601. Meant to be exactly the same as DateTimeISO defined in ABCD.
            </xs:documentation>
          </xs:annotation>
          <xs:restriction base="xs:string">
            <xs:pattern value="\d\d\d\d(\-(0[1-9]|1[012])(\-((0[1-9])|1\d|2\d|3[01])(T(0\d|1\d|2[0-3])(:[0-5]\d){0,2})?)?)?|\-\-(0[1-9]|1[012])(\-(0[1-9]|1\d|2\d|3[01]))?|\-\-\-(0[1-9]|1\d|2\d|3[01])">
            </xs:pattern>
          </xs:restriction>
       </xs:simpleType>

</xs:schema>