gml:verticalDatum

gml:verticalDatum is an association role to the vertical datum used by this CRS.

Element information

Namespace: http://www.opengis.net/gml/3.2

Schema document: external/ogc/gml/3.2.1/coordinateReferenceSystems.xsd

Type: gml:VerticalDatumPropertyType

Properties: Global, Qualified

Content

gml:VerticalDatum [0..1] gml:VerticalDatum is a textual description and/or a set of parameters identifying a particular reference level surface used as a zero-height surface, including its position with respect to the Earth for any of the height types recognized by this International Standard.

Attributes

Name	Occ	Type	Notes
xlink:type	[0..1]	xsd:string	Fixed value is "simple". from group xlink:simpleLink
xlink:href	[0..1]	xsd:anyURI	from group xlink:simpleLink
xlink:role	[0..1]	xsd:anyURI	from group xlink:simpleLink
xlink:arcrole	[0..1]	xsd:anyURI	from group xlink:simpleLink
xlink:title	[0..1]	xsd:string	from group xlink:simpleLink
xlink:show	[0..1]	Anonymous	from group xlink:simpleLink
xlink:actuate	[0..1]	Anonymous	from group xlink:simpleLink
nilReason	[0..1]	gml:NilReasonType	from group gml:AssociationAttributeGroup
gml:remoteSchema	[0..1]	xsd:anyURI	from group gml:AssociationAttributeGroup

Substitution hierarchy

gml:verticalDatum
- can be substituted with gml:usesVerticalDatum

Sample instance

<gml:verticalDatum>
   <gml:VerticalDatum gml:id="ID">
      <gml:metaDataProperty>
         <gml:GenericMetaData>Any text, intermingled with:...
         </gml:GenericMetaData>
      </gml:metaDataProperty>
      <gml:description>string</gml:description>
      <gml:descriptionReference/>
      <gml:identifier codeSpace="http://www.example.com/">string</gml:identifier>
      <gml:name>string</gml:name>
      <gml:remarks>string</gml:remarks>
      <gml:domainOfValidity>
         <gmd:EX_Extent>...
         </gmd:EX_Extent>
      </gml:domainOfValidity>
      <gml:scope>string</gml:scope>
      <gml:anchorDefinition>string</gml:anchorDefinition>
      <gml:realizationEpoch>2000-01-01</gml:realizationEpoch>
   </gml:VerticalDatum>
</gml:verticalDatum>