gml:ImageCRS

gml:ImageCRS is an engineering coordinate reference system applied to locations in images. Image coordinate reference systems are treated as a separate sub-type because the definition of the associated image datum contains two attributes not relevant to other engineering datums.

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]
  from type gml:AbstractCRSType
  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.
  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".
  1. Choice [1..1]
     from subst. group gml:cartesianCS
     gml:cartesianCSgml:cartesianCS is an association role to the Cartesian coordinate system used by this CRS.
     gml:usesCartesianCS
     from subst. group gml:affineCS
     gml:affineCSgml:affineCS is an association role to the affine coordinate system used by this CRS.
     gml:usesAffineCS
     • gml:usesObliqueCartesianCS
  2. Choice [1..1]
     from subst. group gml:imageDatum
     gml:imageDatumgml:imageDatum is an association role to the image datum used by this CRS.
     gml:usesImageDatum

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 gml:ImageCRSPropertyType (Element gml:imageCRSRef)
• Type gml:SingleCRSPropertyType (Elements gml:componentReferenceSystem, gml:baseCRS, gml:singleCRSRef, gml:includesSingleCRS)
• 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:ImageCRS
            • can be substituted with gmx:ML_ImageCRS

Sample instance

<gml:ImageCRS 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:domainOfValidity>
      <gmd:EX_Extent>
         <gmd:description>...
         </gmd:description>
         <gmd:geographicElement>...
         </gmd:geographicElement>
         <gmd:temporalElement>...
         </gmd:temporalElement>
         <gmd:verticalElement>...
         </gmd:verticalElement>
      </gmd:EX_Extent>
   </gml:domainOfValidity>
   <gml:scope>string</gml:scope>
   <gml:cartesianCS>
      <gml:CartesianCS gml:id="ID">
         <gml:metaDataProperty>...
         </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:axis>...
         </gml:axis>
      </gml:CartesianCS>
   </gml:cartesianCS>
   <gml:imageDatum>
      <gml:ImageDatum gml:id="ID">
         <gml:metaDataProperty>...
         </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>...
         </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>
</gml:ImageCRS>