Documentation for CityGML

Complex Type: _CityObjectType

[Table of contents]

Super-types: gml:AbstractFeatureType < _CityObjectType (by extension)
Sub-types:
Name _CityObjectType
Used by (from the same schema document) Element _CityObject , Element _TransportationObject
Abstract yes
Documentation Type describing the abstract superclass of most CityGML features. Its purpose is to provide a creation and a termination date as well as a reference to corresponding objects in other information systems and gerneric attributes. A generalization relation may be used to relate features, which represent the same real-world object in different Levels-of-Detail, i.e. a feature and its generalized counterpart(s). The direction of this relation is from the feature to the corresponding generalized feature.
XML Instance Representation
<...
gml:id="[0..1]">
<gml:description> ... </gml:description> [0..1]
<gml:name> ... </gml:name> [0..*]

'Multiple names may be provided. These will often be distinguished by being assigned by different authorities, as indicated by the value of the codeSpace attribute. In an instance document there will usually only be one name per authority.'

<gml:boundedBy> ... </gml:boundedBy> [0..1]
<gml:location> ... </gml:location> [0..1]

'deprecated in GML version 3.1'

<creationDate> xs:date </creationDate> [0..1]
<terminationDate> xs:date </terminationDate> [0..1]
<externalReference> ExternalReferenceType </externalReference> [0..*]
<generalizesTo> GeneralizationRelationType </generalizesTo> [0..*]
</...>
Diagram
Schema Component Representation
<xs:complexType name="_CityObjectType" abstract="true">
<xs:complexContent>
<xs:extension base=" gml:AbstractFeatureType ">
<xs:sequence>
<xs:element name="creationDate" type=" xs:date " minOccurs="0"/>
<xs:element name="terminationDate" type=" xs:date " minOccurs="0"/>
<xs:element name="externalReference" type=" ExternalReferenceType " minOccurs="0" maxOccurs="unbounded"/>
<xs:element ref=" _genericAttribute " minOccurs="0" maxOccurs="unbounded"/>
<xs:element name="generalizesTo" type=" GeneralizationRelationType " minOccurs="0" maxOccurs="unbounded"/>
<xs:element ref=" appearanceMember " minOccurs="0" maxOccurs="unbounded"/>
<xs:element ref=" _GenericApplicationPropertyOfCityObject " minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>