Documentation for National Information Exchange Model (NEIM)
Definition Type: SimpleType
Name: doubleOrNull
Namespace: http://niem.gov/niem/external/ogc-gml/3.1.1/dhs-gmo/1.0.0
Containing Schema: gml.xsd
Documentation:
Union of the XML Schema double type and the GML Nulltype. An element which uses this type may have content which is either a double or a value from Nulltype
Collapse XSD Schema Diagram:
XSD Diagram of doubleOrNull in schema gml_xsd (National Information Exchange Model (NEIM))
Collapse XSD Schema Code: 
<simpleType name="doubleOrNull">
    <annotation>
        <appinfo source="urn:opengis:specification:gml:schema-xsd:basicTypes:3.1.1">basicTypes.xsd</appinfo>
        <documentation>Union of the XML Schema double type and the GML Nulltype.  An element which uses this type may have content which is either a double or a value from Nulltype</documentation>
    </annotation>
    <union memberTypes="gml:NullEnumeration double anyURI" />
</simpleType>
Collapse Derivation Tree:
Collapse References:
gml:doubleOrNullList
Documentation for National Information Exchange Model (NEIM)

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