gml:imageDatum

gml:imageDatum is an association role to the image 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:ImageDatumPropertyType

Properties: Global, Qualified

Content

gml:ImageDatum [0..1] gml:ImageDatum defines the origin of an image coordinate reference system, and is used in a local context only. For an image datum, the anchor definition is usually either the centre of the image or the corner of the image. For more information, see ISO 19111 B.3.5.

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:imageDatum
- can be substituted with gml:usesImageDatum

Sample instance

<gml:imageDatum>
   <gml:ImageDatum 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:pixelInCell codeSpace="http://www.example.com/">string</gml:pixelInCell>
   </gml:ImageDatum>
</gml:imageDatum>