<xs:complexType name="AbstractBuildingType" abstract="true">
	<xs:annotation>
		<xs:documentation>Type describing the thematic and geometric attributes and the associations of buildings. It is an abstract
			type, only its subclasses Building and BuildingPart can be instantiated. An _AbstractBuilding may consist of
			BuildingParts, which are again _AbstractBuildings by inheritance. Thus an aggregation hierarchy between _AbstractBuildings
			of arbitrary depth may be specified. In such an hierarchy, top elements are Buildings, while all other elements are
			BuildingParts. Each element of such a hierarchy may have all attributes and geometries of _AbstractBuildings. It must,
			however, be assured than no inconsistencies occur (for example, if the geometry of a Building does not correspond to the
			geometries of its parts, or if the roof type of a Building is saddle roof, while its parts have an hip roof). As subclass
			of _CityObject, an _AbstractBuilding inherits all attributes and relations, in particular an id, names, external
			references, and generalization relations. </xs:documentation>
	</xs:annotation>
	<xs:complexContent>
		<xs:extension base="core:AbstractSiteType">
			<xs:sequence>
				<xs:annotation>
					<xs:documentation> The name will be represented by gml:name (inherited from _GML) . list order for
						storeyHeightsAboveground: first floor, second floor,... list order for storeyHeightsBelowground: first floor below
						ground, second floor below ground,... The lodXMultiSurface must be used, if the geometry of a building is just a
						collection of surfaces bounding a solid, but not a topologically clean solid boundary necessary for GML3 solid
						boundaries. </xs:documentation>
				</xs:annotation>
				<xs:element name="class" type="gml:CodeType" minOccurs="0"/>
				<xs:element name="function" type="gml:CodeType" minOccurs="0" maxOccurs="unbounded"/>
				<xs:element name="usage" type="gml:CodeType" minOccurs="0" maxOccurs="unbounded"/>
				<xs:element name="yearOfConstruction" type="xs:gYear" minOccurs="0"/>
				<xs:element name="yearOfDemolition" type="xs:gYear" minOccurs="0"/>
				<xs:element name="roofType" type="gml:CodeType" minOccurs="0"/>
				<xs:element name="measuredHeight" type="gml:LengthType" minOccurs="0"/>
				<xs:element name="storeysAboveGround" type="xs:nonNegativeInteger" minOccurs="0"/>
				<xs:element name="storeysBelowGround" type="xs:nonNegativeInteger" minOccurs="0"/>
				<xs:element name="storeyHeightsAboveGround" type="gml:MeasureOrNullListType" minOccurs="0"/>
				<xs:element name="storeyHeightsBelowGround" type="gml:MeasureOrNullListType" minOccurs="0"/>
				<xs:element name="lod0FootPrint" type="gml:MultiSurfacePropertyType" minOccurs="0"/>
				<xs:element name="lod0RoofEdge" type="gml:MultiSurfacePropertyType" minOccurs="0"/>
				<xs:element name="lod1Solid" type="gml:SolidPropertyType" minOccurs="0"/>
				<xs:element name="lod1MultiSurface" type="gml:MultiSurfacePropertyType" minOccurs="0"/>
				<xs:element name="lod1TerrainIntersection" type="gml:MultiCurvePropertyType" minOccurs="0"/>
				<xs:element name="lod2Solid" type="gml:SolidPropertyType" minOccurs="0"/>
				<xs:element name="lod2MultiSurface" type="gml:MultiSurfacePropertyType" minOccurs="0"/>
				<xs:element name="lod2MultiCurve" type="gml:MultiCurvePropertyType" minOccurs="0"/>
				<xs:element name="lod2TerrainIntersection" type="gml:MultiCurvePropertyType" minOccurs="0"/>
				<xs:element name="outerBuildingInstallation" type="BuildingInstallationPropertyType" minOccurs="0" maxOccurs="unbounded"/>
				<xs:element name="interiorBuildingInstallation" type="IntBuildingInstallationPropertyType" minOccurs="0"
					maxOccurs="unbounded"/>
				<xs:element name="boundedBy" type="BoundarySurfacePropertyType" minOccurs="0" maxOccurs="unbounded"/>
				<xs:element name="lod3Solid" type="gml:SolidPropertyType" minOccurs="0"/>
				<xs:element name="lod3MultiSurface" type="gml:MultiSurfacePropertyType" minOccurs="0"/>
				<xs:element name="lod3MultiCurve" type="gml:MultiCurvePropertyType" minOccurs="0"/>
				<xs:element name="lod3TerrainIntersection" type="gml:MultiCurvePropertyType" minOccurs="0"/>
				<xs:element name="lod4Solid" type="gml:SolidPropertyType" minOccurs="0"/>
				<xs:element name="lod4MultiSurface" type="gml:MultiSurfacePropertyType" minOccurs="0"/>
				<xs:element name="lod4MultiCurve" type="gml:MultiCurvePropertyType" minOccurs="0"/>
				<xs:element name="lod4TerrainIntersection" type="gml:MultiCurvePropertyType" minOccurs="0"/>
				<xs:element name="interiorRoom" type="InteriorRoomPropertyType" minOccurs="0" maxOccurs="unbounded"/>
				<xs:element name="consistsOfBuildingPart" type="BuildingPartPropertyType" minOccurs="0" maxOccurs="unbounded"/>
				<xs:element name="address" type="core:AddressPropertyType" minOccurs="0" maxOccurs="unbounded"/>
				<xs:element ref="_GenericApplicationPropertyOfAbstractBuilding" minOccurs="0" maxOccurs="unbounded"/>
			</xs:sequence>
		</xs:extension>
	</xs:complexContent>
</xs:complexType>