gml:AbstractCRS

gml:AbstractCRS specifies a coordinate reference system which is usually single but may be compound. 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.

Element information

Content

• Sequence [1..1]
  from type gml:DefinitionBaseType
  gml:metaDataProperty [0..*]
  gml:description [0..1]The value of this property is a text description of the object. gml:description uses gml:StringOrRefType as its content model, so it may contain a simple text string content, or carry a reference to an external description. The use of gml:description to reference an external description has been deprecated and replaced by the gml:descriptionReference property.
  gml:descriptionReference [0..1]The value of this property is a remote text description of the object. The xlink:href attribute of the gml:descriptionReference property references the external description.
  gml:identifier [1..1]Often, a special identifier is assigned to an object by the maintaining authority with the intention that it is used in references to the object For such cases, the codeSpace shall be provided. That identifier is usually unique either globally or within an application domain. gml:identifier is a pre-defined property for such identifiers.
  gml:name [0..*]The gml:name property provides a label or identifier for the object, commonly a descriptive name. An object may have several names, typically assigned by different authorities. gml:name uses the gml:CodeType content model. The authority for a name is indicated by the value of its (optional) codeSpace attribute. The name may or may not be unique, as determined by the rules of the organization responsible for the codeSpace. In common usage there will be one name per authority, so a processing application may select the name from its preferred codeSpace.
  from type gml:DefinitionType
  gml:remarks [0..1]
  1. gml:domainOfValidity [0..*]The gml:domainOfValidity property implements an association role to an EX_Extent object as encoded in ISO/TS 19139, either referencing or containing the definition of that extent.
  2. gml:scope [1..*]The gml:scope property provides a description of the usage, or limitations of usage, for which this CRS-related object is valid. If unknown, enter "not known".

Attributes

Used in

• Type gml:ArrayAssociationType (Element gml:members)
• Type gml:CRSPropertyType (Elements gml:sourceCRS, gml:targetCRS, gml:referenceSystemRef, gml:crsRef)
• Type gml:DictionaryEntryType (Elements gml:definitionMember, gml:dictionaryEntry)
• Type gmx:CT_CRS_PropertyType (Element gmx:crs)
• Type gsr:SC_CRS_PropertyType (Element gmd:verticalCRS)

Substitution hierarchy

• gml:AbstractObject
  • can be substituted with gml:AbstractGML
    • can be substituted with gml:Definition
      • can be substituted with gml:AbstractCRS
        • can be substituted with gml:AbstractSingleCRS
          • can be substituted with gml:AbstractGeneralDerivedCRS
            • can be substituted with gml:ProjectedCRS
              • can be substituted with gmx:ML_ProjectedCRS
            • can be substituted with gml:DerivedCRS
              • can be substituted with gmx:ML_DerivedCRS
          • can be substituted with gml:GeodeticCRS
            • can be substituted with gmx:ML_GeodeticCRS
          • can be substituted with gml:VerticalCRS
            • can be substituted with gmx:ML_VerticalCRS
          • can be substituted with gml:EngineeringCRS
            • can be substituted with gmx:ML_EngineeringCRS
          • can be substituted with gml:ImageCRS
            • can be substituted with gmx:ML_ImageCRS
          • can be substituted with gml:TemporalCRS
            • can be substituted with gmx:ML_TemporalCRS
          • can be substituted with gml:GeographicCRS
          • can be substituted with gml:GeocentricCRS
        • can be substituted with gml:CompoundCRS
          • can be substituted with gmx:ML_CompoundCRS