gml:AbstractFeatureType
The basic feature model is given by the gml:AbstractFeatureType. The content model for gml:AbstractFeatureType adds two specific properties suitable for geographic features to the content model defined in gml:AbstractGMLType. The value of the gml:boundedBy property describes an envelope that encloses the entire feature instance, and is primarily useful for supporting rapid searching for features that occur in a particular location. The value of the gml:location property describes the extent, position or relative location of the feature.
Complex type information
Namespace: http://www.opengis.net/gml/3.2
Schema document: external/ogc/gml/3.2.1/feature.xsd
Properties: Abstract
Content
- Sequence [1..1]
- 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 [0..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.
- gml:boundedBy [0..1]This property describes the minimum bounding box or rectangle that encloses the entire feature.
- Choice [0..1]from subst. group gml:location
from type gml:AbstractGMLTypefrom group gml:StandardObjectProperties
Attributes
Name | Occ | Type | Description | Notes |
---|---|---|---|---|
gml:id | [1..1] | xsd:ID | The attribute gml:id supports provision of a handle for the XML element representing a GML Object. Its use is mandatory for all GML objects. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs. | from type gml:AbstractGMLType |
Used by
- Element gml:AbstractFeature
- Element gml:AbstractContinuousCoverage via derived type gml:AbstractContinuousCoverageType
- Element gml:AbstractCoverage via derived type gml:AbstractCoverageType
- Element gml:AbstractDiscreteCoverage via derived type gml:DiscreteCoverageType
- Element gml:AbstractFeatureCollection via derived type gml:AbstractFeatureCollectionType
- Element gml:DirectedObservation via derived type gml:DirectedObservationType
- Element gml:DirectedObservationAtDistance via derived type gml:DirectedObservationAtDistanceType
- Element gml:DynamicFeature via derived type gml:DynamicFeatureType
- Element gml:DynamicFeatureCollection via derived type gml:DynamicFeatureCollectionType
- Element gml:FeatureCollection via derived type gml:FeatureCollectionType
- Element gml:GridCoverage via derived type gml:DiscreteCoverageType
- Element gml:MultiCurveCoverage via derived type gml:DiscreteCoverageType
- Element gml:MultiPointCoverage via derived type gml:DiscreteCoverageType
- Element gml:MultiSolidCoverage via derived type gml:DiscreteCoverageType
- Element gml:MultiSurfaceCoverage via derived type gml:DiscreteCoverageType
- Element gml:Observation via derived type gml:ObservationType
- Element gml:RectifiedGridCoverage via derived type gml:DiscreteCoverageType
Type inheritance chain
- gml:AbstractGMLType
- gml:AbstractFeatureType
- extended by gml:AbstractCoverageType
- extended by gml:DiscreteCoverageType
- extended by gml:AbstractContinuousCoverageType
- extended by gml:AbstractFeatureCollectionType
- extended by gml:FeatureCollectionType
- extended by gml:DynamicFeatureType
- extended by gml:DynamicFeatureCollectionType
- extended by gml:ObservationType
- extended by gml:DirectedObservationType
- extended by gml:DirectedObservationAtDistanceType
- extended by gml:DirectedObservationType
- restricted by gml:BoundedFeatureType
- extended by gml:AbstractCoverageType
- gml:AbstractFeatureType