Base Infrastructure Schema > domains > Building Spatial ECSchema BuildingSpatial Schema Alias: spatial Version: 1.0.1 The Spatial representation of building composition elements This schema contains the concrete classes that are used to model the spatial structure of a building.That spatial structure is often used to provide a project structure to organize a building project. Due to the importance of IFC in coordinating spatial structure, the classes in the schema are intended to have a 1:1 instance mapping (not class mapping!) with IFC that will work for transformations in either direction. It is expected that round-trip transformations may result in changes that provide an equivalent, but not identical model. Table of contents Entity Classes Building BuildingType ElevationStory RegularStory RegularStoryType Space SpaceType Story Zone ZoneType Relationship Classes BuildingIsOfType RegularStoryIsOfType SpaceIsOfType ZoneIsOfType Entity Classes Building EntityClass An element modeling the spatial perspective of a building Base Class: SpatialComposition:Facility Inherited properties Name Description Type Extended Type Model The bis:Model that contains this bis:Element. navigation LastMod The last modified time of the bis:Element. This is maintained by the core framework and should not be set directly by applications. dateTime CodeSpec The CodeSpec property identifies the bis:CodeSpec used to generate and validate the code for this bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeScope The CodeScope property identifies the bis:Element that provides the uniqueness scope for the code value. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeValue The CodeValue property stores the formal name (business key) for a bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. string UserLabel An optional friendly name given by the user (as opposed to the formal name stored in the CodeValue property). string Parent The parent bis:Element that owns this bis:Element. navigation FederationGuid The GUID used to federate this bis:Element across repositories. binary BeGuid JsonProperties A string property that users and/or applications can use to persist ad hoc JSON values. string Json Category The bis:SpatialCategory used to categorize this bis:GeometricElement3d navigation InSpatialIndex If true, this element will have an entry in the Spatial Index. boolean Origin The placement origin of this bis:Element. point3d Yaw The Yaw angle (in degrees) of the orientation of this bis:Element. double Pitch The Pitch angle (in degrees) of the orientation of this bis:Element. double Roll The Roll angle (in degrees) of the orientation of this bis:Element. double BBoxLow The 'low' point of the element-aligned bounding box of this bis:Element. point3d BBoxHigh The 'high' point of the element-aligned bounding box of this bis:Element. point3d GeometryStream Binary stream used to persist the geometry of this bis:Element. binary GeometryStream TypeDefinition Points to an instance of some specialization of TypeDefinition, which holds property values that vary per-type rather than per-instance of this Element. navigation ComposingElement The aggregator of this element within the Spatial Structure navigation FootprintArea The area that this Element projects onto its base plane. double Description A human-readable description of this Spatial Structure Element string BuildingType (Building Type) EntityClass Further specializes a particular subclass of a Building by associating a custom Type that can be defined by users. Base Class: SpatialComposition:FacilityType Inherited properties Name Description Type Extended Type Model The bis:Model that contains this bis:Element. navigation LastMod The last modified time of the bis:Element. This is maintained by the core framework and should not be set directly by applications. dateTime CodeSpec The CodeSpec property identifies the bis:CodeSpec used to generate and validate the code for this bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeScope The CodeScope property identifies the bis:Element that provides the uniqueness scope for the code value. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeValue The CodeValue property stores the formal name (business key) for a bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. string UserLabel An optional friendly name given by the user (as opposed to the formal name stored in the CodeValue property). string Parent The parent bis:Element that owns this bis:Element. navigation FederationGuid The GUID used to federate this bis:Element across repositories. binary BeGuid JsonProperties A string property that users and/or applications can use to persist ad hoc JSON values. string Json IsPrivate If true, this bis:DefinitionElement should not be displayed in the GUI. boolean Recipe navigation Description A human-readable description of this type. string ElevationStory Abstract EntityClass A building story that is a (nearly) horizontal aggregation of spaces that are vertically bound Base Class: BuildingSpatial:Story Inherited properties Name Description Type Extended Type Model The bis:Model that contains this bis:Element. navigation LastMod The last modified time of the bis:Element. This is maintained by the core framework and should not be set directly by applications. dateTime CodeSpec The CodeSpec property identifies the bis:CodeSpec used to generate and validate the code for this bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeScope The CodeScope property identifies the bis:Element that provides the uniqueness scope for the code value. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeValue The CodeValue property stores the formal name (business key) for a bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. string UserLabel An optional friendly name given by the user (as opposed to the formal name stored in the CodeValue property). string Parent The parent bis:Element that owns this bis:Element. navigation FederationGuid The GUID used to federate this bis:Element across repositories. binary BeGuid JsonProperties A string property that users and/or applications can use to persist ad hoc JSON values. string Json Category The bis:SpatialCategory used to categorize this bis:GeometricElement3d navigation InSpatialIndex If true, this element will have an entry in the Spatial Index. boolean Origin The placement origin of this bis:Element. point3d Yaw The Yaw angle (in degrees) of the orientation of this bis:Element. double Pitch The Pitch angle (in degrees) of the orientation of this bis:Element. double Roll The Roll angle (in degrees) of the orientation of this bis:Element. double BBoxLow The 'low' point of the element-aligned bounding box of this bis:Element. point3d BBoxHigh The 'high' point of the element-aligned bounding box of this bis:Element. point3d GeometryStream Binary stream used to persist the geometry of this bis:Element. binary GeometryStream TypeDefinition Points to an instance of some specialization of TypeDefinition, which holds property values that vary per-type rather than per-instance of this Element. navigation ComposingElement The aggregator of this element within the Spatial Structure navigation FootprintArea The area that this Element projects onto its base plane. double Description A human-readable description of this Spatial Structure Element string RegularStory (Regular Story) EntityClass A building story that is delimited by 2 elevations from top and bottom and represents a horizontal aggregation of spaces that are vertically bound Base Class: BuildingSpatial:ElevationStory Inherited properties Name Description Type Extended Type Model The bis:Model that contains this bis:Element. navigation LastMod The last modified time of the bis:Element. This is maintained by the core framework and should not be set directly by applications. dateTime CodeSpec The CodeSpec property identifies the bis:CodeSpec used to generate and validate the code for this bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeScope The CodeScope property identifies the bis:Element that provides the uniqueness scope for the code value. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeValue The CodeValue property stores the formal name (business key) for a bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. string UserLabel An optional friendly name given by the user (as opposed to the formal name stored in the CodeValue property). string Parent The parent bis:Element that owns this bis:Element. navigation FederationGuid The GUID used to federate this bis:Element across repositories. binary BeGuid JsonProperties A string property that users and/or applications can use to persist ad hoc JSON values. string Json Category The bis:SpatialCategory used to categorize this bis:GeometricElement3d navigation InSpatialIndex If true, this element will have an entry in the Spatial Index. boolean Origin The placement origin of this bis:Element. point3d Yaw The Yaw angle (in degrees) of the orientation of this bis:Element. double Pitch The Pitch angle (in degrees) of the orientation of this bis:Element. double Roll The Roll angle (in degrees) of the orientation of this bis:Element. double BBoxLow The 'low' point of the element-aligned bounding box of this bis:Element. point3d BBoxHigh The 'high' point of the element-aligned bounding box of this bis:Element. point3d GeometryStream Binary stream used to persist the geometry of this bis:Element. binary GeometryStream TypeDefinition Points to an instance of some specialization of TypeDefinition, which holds property values that vary per-type rather than per-instance of this Element. navigation ComposingElement The aggregator of this element within the Spatial Structure navigation FootprintArea The area that this Element projects onto its base plane. double Description A human-readable description of this Spatial Structure Element string RegularStoryType (Regular Story Type) EntityClass Further specializes a particular subclass of a RegularStory by associating a custom Type that can be defined by users. Base Class: SpatialComposition:FacilityPartType Inherited properties Name Description Type Extended Type Model The bis:Model that contains this bis:Element. navigation LastMod The last modified time of the bis:Element. This is maintained by the core framework and should not be set directly by applications. dateTime CodeSpec The CodeSpec property identifies the bis:CodeSpec used to generate and validate the code for this bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeScope The CodeScope property identifies the bis:Element that provides the uniqueness scope for the code value. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeValue The CodeValue property stores the formal name (business key) for a bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. string UserLabel An optional friendly name given by the user (as opposed to the formal name stored in the CodeValue property). string Parent The parent bis:Element that owns this bis:Element. navigation FederationGuid The GUID used to federate this bis:Element across repositories. binary BeGuid JsonProperties A string property that users and/or applications can use to persist ad hoc JSON values. string Json IsPrivate If true, this bis:DefinitionElement should not be displayed in the GUI. boolean Recipe navigation Description A human-readable description of this type. string Space EntityClass An element modeling a building space Base Class: SpatialComposition:Space Inherited properties Name Description Type Extended Type Model The bis:Model that contains this bis:Element. navigation LastMod The last modified time of the bis:Element. This is maintained by the core framework and should not be set directly by applications. dateTime CodeSpec The CodeSpec property identifies the bis:CodeSpec used to generate and validate the code for this bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeScope The CodeScope property identifies the bis:Element that provides the uniqueness scope for the code value. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeValue The CodeValue property stores the formal name (business key) for a bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. string UserLabel An optional friendly name given by the user (as opposed to the formal name stored in the CodeValue property). string Parent The parent bis:Element that owns this bis:Element. navigation FederationGuid The GUID used to federate this bis:Element across repositories. binary BeGuid JsonProperties A string property that users and/or applications can use to persist ad hoc JSON values. string Json Category The bis:SpatialCategory used to categorize this bis:GeometricElement3d navigation InSpatialIndex If true, this element will have an entry in the Spatial Index. boolean Origin The placement origin of this bis:Element. point3d Yaw The Yaw angle (in degrees) of the orientation of this bis:Element. double Pitch The Pitch angle (in degrees) of the orientation of this bis:Element. double Roll The Roll angle (in degrees) of the orientation of this bis:Element. double BBoxLow The 'low' point of the element-aligned bounding box of this bis:Element. point3d BBoxHigh The 'high' point of the element-aligned bounding box of this bis:Element. point3d GeometryStream Binary stream used to persist the geometry of this bis:Element. binary GeometryStream TypeDefinition Points to an instance of some specialization of TypeDefinition, which holds property values that vary per-type rather than per-instance of this Element. navigation ComposingElement The aggregator of this element within the Spatial Structure navigation FootprintArea The area that this Element projects onto its base plane. double Description A human-readable description of this Spatial Structure Element string SpaceType (Space Type) EntityClass Further specializes a particular subclass of a Space by associating a custom Type that can be defined by users. Base Class: SpatialComposition:SpaceType Inherited properties Name Description Type Extended Type Model The bis:Model that contains this bis:Element. navigation LastMod The last modified time of the bis:Element. This is maintained by the core framework and should not be set directly by applications. dateTime CodeSpec The CodeSpec property identifies the bis:CodeSpec used to generate and validate the code for this bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeScope The CodeScope property identifies the bis:Element that provides the uniqueness scope for the code value. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeValue The CodeValue property stores the formal name (business key) for a bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. string UserLabel An optional friendly name given by the user (as opposed to the formal name stored in the CodeValue property). string Parent The parent bis:Element that owns this bis:Element. navigation FederationGuid The GUID used to federate this bis:Element across repositories. binary BeGuid JsonProperties A string property that users and/or applications can use to persist ad hoc JSON values. string Json IsPrivate If true, this bis:DefinitionElement should not be displayed in the GUI. boolean Recipe navigation Description A human-readable description of this type. string Story Abstract EntityClass A building Story that is an aggregation of spaces that are vertically bound Base Class: SpatialComposition:FacilityPart Inherited properties Name Description Type Extended Type Model The bis:Model that contains this bis:Element. navigation LastMod The last modified time of the bis:Element. This is maintained by the core framework and should not be set directly by applications. dateTime CodeSpec The CodeSpec property identifies the bis:CodeSpec used to generate and validate the code for this bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeScope The CodeScope property identifies the bis:Element that provides the uniqueness scope for the code value. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeValue The CodeValue property stores the formal name (business key) for a bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. string UserLabel An optional friendly name given by the user (as opposed to the formal name stored in the CodeValue property). string Parent The parent bis:Element that owns this bis:Element. navigation FederationGuid The GUID used to federate this bis:Element across repositories. binary BeGuid JsonProperties A string property that users and/or applications can use to persist ad hoc JSON values. string Json Category The bis:SpatialCategory used to categorize this bis:GeometricElement3d navigation InSpatialIndex If true, this element will have an entry in the Spatial Index. boolean Origin The placement origin of this bis:Element. point3d Yaw The Yaw angle (in degrees) of the orientation of this bis:Element. double Pitch The Pitch angle (in degrees) of the orientation of this bis:Element. double Roll The Roll angle (in degrees) of the orientation of this bis:Element. double BBoxLow The 'low' point of the element-aligned bounding box of this bis:Element. point3d BBoxHigh The 'high' point of the element-aligned bounding box of this bis:Element. point3d GeometryStream Binary stream used to persist the geometry of this bis:Element. binary GeometryStream TypeDefinition Points to an instance of some specialization of TypeDefinition, which holds property values that vary per-type rather than per-instance of this Element. navigation ComposingElement The aggregator of this element within the Spatial Structure navigation FootprintArea The area that this Element projects onto its base plane. double Description A human-readable description of this Spatial Structure Element string Zone EntityClass Base Class: SpatialComposition:Zone Inherited properties Name Description Type Extended Type Model The bis:Model that contains this bis:Element. navigation LastMod The last modified time of the bis:Element. This is maintained by the core framework and should not be set directly by applications. dateTime CodeSpec The CodeSpec property identifies the bis:CodeSpec used to generate and validate the code for this bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeScope The CodeScope property identifies the bis:Element that provides the uniqueness scope for the code value. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeValue The CodeValue property stores the formal name (business key) for a bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. string UserLabel An optional friendly name given by the user (as opposed to the formal name stored in the CodeValue property). string Parent The parent bis:Element that owns this bis:Element. navigation FederationGuid The GUID used to federate this bis:Element across repositories. binary BeGuid JsonProperties A string property that users and/or applications can use to persist ad hoc JSON values. string Json Category The bis:SpatialCategory used to categorize this bis:GeometricElement3d navigation InSpatialIndex If true, this element will have an entry in the Spatial Index. boolean Origin The placement origin of this bis:Element. point3d Yaw The Yaw angle (in degrees) of the orientation of this bis:Element. double Pitch The Pitch angle (in degrees) of the orientation of this bis:Element. double Roll The Roll angle (in degrees) of the orientation of this bis:Element. double BBoxLow The 'low' point of the element-aligned bounding box of this bis:Element. point3d BBoxHigh The 'high' point of the element-aligned bounding box of this bis:Element. point3d GeometryStream Binary stream used to persist the geometry of this bis:Element. binary GeometryStream TypeDefinition Points to an instance of some specialization of TypeDefinition, which holds property values that vary per-type rather than per-instance of this Element. navigation ZoneType (Zone Type) EntityClass Further specializes a particular subclass of a Zone by associating a custom Type that can be defined by users. Base Class: SpatialComposition:ZoneType Inherited properties Name Description Type Extended Type Model The bis:Model that contains this bis:Element. navigation LastMod The last modified time of the bis:Element. This is maintained by the core framework and should not be set directly by applications. dateTime CodeSpec The CodeSpec property identifies the bis:CodeSpec used to generate and validate the code for this bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeScope The CodeScope property identifies the bis:Element that provides the uniqueness scope for the code value. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. navigation CodeValue The CodeValue property stores the formal name (business key) for a bis:Element. The combination of CodeSpec, CodeScope, and CodeValue properties must be unique for each bis:Element instance. string UserLabel An optional friendly name given by the user (as opposed to the formal name stored in the CodeValue property). string Parent The parent bis:Element that owns this bis:Element. navigation FederationGuid The GUID used to federate this bis:Element across repositories. binary BeGuid JsonProperties A string property that users and/or applications can use to persist ad hoc JSON values. string Json IsPrivate If true, this bis:DefinitionElement should not be displayed in the GUI. boolean Recipe navigation Description A human-readable description of this Zone Type. string Relationship Classes BuildingIsOfType (Building Is Of Building Type) RelationshipClass Relates a Building to its Type definition Base Class: SpatialComposition:FacilityIsOfType Strength: Referencing Strength Direction: Forward Source Is Polymorphic: true Role Label: is of type Multiplicity: (0..*) Constraint Classes: Building Target Is Polymorphic: true Role Label: is type of Multiplicity: (0..1) Constraint Classes: BuildingType RegularStoryIsOfType (Regular Story Is Of Regular Story Type) RelationshipClass Relates a RegularStory to its Type definition Base Class: SpatialComposition:FacilityPartIsOfType Strength: Referencing Strength Direction: Forward Source Is Polymorphic: true Role Label: is of type Multiplicity: (0..*) Constraint Classes: RegularStory Target Is Polymorphic: true Role Label: is type of Multiplicity: (0..1) Constraint Classes: RegularStoryType SpaceIsOfType (Space Is Of Space Type) RelationshipClass Relates a Space to its Type definition Base Class: SpatialComposition:SpaceIsOfType Strength: Referencing Strength Direction: Forward Source Is Polymorphic: true Role Label: is of type Multiplicity: (0..*) Constraint Classes: Space Target Is Polymorphic: true Role Label: is type of Multiplicity: (0..1) Constraint Classes: SpaceType ZoneIsOfType (Zone Is Of Zone Type) RelationshipClass Relates a Zone to its Type definition Base Class: SpatialComposition:ZoneIsOfType Strength: Referencing Strength Direction: Forward Source Is Polymorphic: true Role Label: is of type Multiplicity: (0..*) Constraint Classes: Zone Target Is Polymorphic: true Role Label: is type of Multiplicity: (0..1) Constraint Classes: ZoneType Last Updated: 02 February, 2022