<xs:element name="Pnts">
<xs:annotation>
<xs:documentation>The collection of points that defined the surface. The "P" point id values are unique per surface.</xs:documentation>
<xs:documentation>The id values are referenced by the surface faces and breaklines.</xs:documentation>
</xs:annotation>
<xs:complexType>
<xs:sequence>
<xs:element ref="P" minOccurs="3" maxOccurs="unbounded" />
</xs:sequence>
</xs:complexType>
<xs:unique name="uSrfPntNum">
<xs:selector xpath="P" />
<xs:field xpath="@id" />
</xs:unique>
</xs:element>
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