gml:primeMeridian
gml:primeMeridian is an association role to the prime meridian used by this geodetic datum.
Element information
Namespace: http://www.opengis.net/gml/3.2
Schema document: external/ogc/gml/3.2.1/datums.xsd
Type: gml:PrimeMeridianPropertyType
Properties: Global, Qualified
Content
- Choice [0..1]
- gml:PrimeMeridianA gml:PrimeMeridian defines the origin from which longitude values are determined. The default value for the prime meridian gml:identifier value is "Greenwich".
- gmx:ML_PrimeMeridian
from subst. group gml:PrimeMeridian
Attributes
Name | Occ | Type | Description | Notes |
---|---|---|---|---|
nilReason | [0..1] | gml:NilReasonType | from group gml:AssociationAttributeGroup | |
gml:remoteSchema | [0..1] | xsd:anyURI | from group gml:AssociationAttributeGroup |
Substitution hierarchy
- gml:primeMeridian
- can be substituted with gml:usesPrimeMeridian
Sample instance
<gml:primeMeridian> <gml:PrimeMeridian gml:id="ID"> <gml:metaDataProperty> <gml:GenericMetaData>Any text, intermingled with: <!--any element--> </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:greenwichLongitude uom="">1.0</gml:greenwichLongitude> </gml:PrimeMeridian> </gml:primeMeridian>