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Annotations
Attributes
Diagrams
Instances
Properties
Source
Used by
Element gml:AbstractDatum
Namespace http://www.opengis.net/gml/3.2
Annotations
A gml:AbstractDatum specifies the relationship of a coordinate system to the earth, thus creating a coordinate reference system. A datum uses a parameter or set of parameters that determine the location of the origin of the coordinate reference system. Each datum subtype may be associated with only specific types of coordinate systems. This abstract complex type shall not be used, extended, or restricted, in a GML Application Schema, to define a concrete subtype with a meaning equivalent to a concrete subtype specified in this document.
Diagram
Diagram index18.tmp#id77 index19.tmp#id71 index20.tmp#id99 index21.tmp#id101 index22.tmp#id105 index23.tmp#id110 index24.tmp#id70 index25.tmp#id69 index18.tmp#id77 index19.tmp#id71 index20.tmp#id99 index21.tmp#id101 index22.tmp#id105 index23.tmp#id110 index116.tmp#id643 index117.tmp#id644 index118.tmp#id642 index119.tmp#id986 index157.tmp#id987 index158.tmp#id1059 index159.tmp#id1218 index160.tmp#id1220 index161.tmp#id1217 index162.tmp#id697 index163.tmp#id696 index164.tmp#id698 index165.tmp#id700 index166.tmp#id699
Type gml:AbstractDatumType
Type hierarchy
Properties
content: complex
abstract: true
Used by
Complex Type gml:DatumPropertyType
Model gml:metaDataProperty* , gml:description{0,1} , gml:descriptionReference{0,1} , gml:identifier , gml:name* , gml:remarks{0,1} , gml:domainOfValidity{0,1} , gml:scope+ , gml:anchorDefinition{0,1} , gml:realizationEpoch{0,1}
Children gml:anchorDefinition, gml:description, gml:descriptionReference, gml:domainOfValidity, gml:identifier, gml:metaDataProperty, gml:name, gml:realizationEpoch, gml:remarks, gml:scope
Instance
<gml:AbstractDatum gml:id="">
  <gml:metaDataProperty about="" xlink:actuate="" xlink:arcrole="" xlink:href="" nilReason="" gml:remoteSchema="" xlink:role="" xlink:show="" xlink:title="" xlink:type="simple">{0,unbounded}</gml:metaDataProperty>
  <gml:description xlink:actuate="" xlink:arcrole="" xlink:href="" nilReason="" gml:remoteSchema="" xlink:role="" xlink:show="" xlink:title="" xlink:type="simple">{0,1}</gml:description>
  <gml:descriptionReference xlink:actuate="" xlink:arcrole="" xlink:href="" nilReason="" owns="false" gml:remoteSchema="" xlink:role="" xlink:show="" xlink:title="" xlink:type="simple">{0,1}</gml:descriptionReference>
  <gml:identifier codeSpace="">{1,1}</gml:identifier>
  <gml:name codeSpace="">{0,unbounded}</gml:name>
</gml:AbstractDatum>
Attributes
QName Type Fixed Default Use Annotation
gml:id ID required
The attribute gml:id supports provision of a handle for the XML element representing a GML Object. Its use is mandatory for all GML objects. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs.
Source
<element name="AbstractDatum" type="gml:AbstractDatumType" abstract="true" substitutionGroup="gml:Definition">
  <annotation>
    <documentation>A gml:AbstractDatum specifies the relationship of a coordinate system to the earth, thus creating a coordinate reference system. A datum uses a parameter or set of parameters that determine the location of the origin of the coordinate reference system. Each datum subtype may be associated with only specific types of coordinate systems. This abstract complex type shall not be used, extended, or restricted, in a GML Application Schema, to define a concrete subtype with a meaning equivalent to a concrete subtype specified in this document.</documentation>
  </annotation>
</element>
Schema location http://schemas.opengis.net/gml/3.2.1/datums.xsd