Class TIfcRelSpaceBoundary2ndLevel

Unit

Declaration

type TIfcRelSpaceBoundary2ndLevel = class(TIfcRelSpaceBoundary1stLevel)

Description

IFC class IfcRelSpaceBoundary2ndLevel.

Source: scene/load/ifc/castleifc_ifc_standard_types_autogenerated.inc (line 1831).

Hierarchy

Show Additional Members:

Overview

Methods

Protected function WantsGlobalId: Boolean; virtual;
Protected class function IfcClassName: String; virtual;
Protected function WantsGlobalId: Boolean; override;

Properties

Published property GlobalId: String read FGlobalId write FGlobalId;
Published property OwnerHistory: TIfcOwnerHistory read FOwnerHistory write FOwnerHistory;
Published property Name: TIfcLabel read FName write FName;
Published property Description: TIfcText read FDescription write FDescription;
Published property RelatedBuildingElement: TIfcElement read FRelatedBuildingElement write FRelatedBuildingElement;
Published property ConnectionGeometry: TIfcConnectionGeometry read FConnectionGeometry write FConnectionGeometry;
Published property PhysicalOrVirtualBoundary: TIfcPhysicalOrVirtualEnum read FPhysicalOrVirtualBoundary write FPhysicalOrVirtualBoundary default TIfcPhysicalOrVirtualEnum.NotDefined;
Published property InternalOrExternalBoundary: TIfcInternalOrExternalEnum read FInternalOrExternalBoundary write FInternalOrExternalBoundary default TIfcInternalOrExternalEnum.NotDefined;

Description

Methods

Protected function WantsGlobalId: Boolean; virtual;

If True, instances of this class will have GlobalId auto-assigned at saving, and they will be saved as part of the "data" list in IFC JSON files.

Strictly following the spec, this should be only defined for TIfcRoot, because only IfcRoot has GlobalId. In reality, we need GlobalId at TIfcPersistent to load some files, and we sometimes need WantsGlobalId = True to save some files.

Source: scene/load/ifc/castleifc_ifc_types.inc (line 52).

Protected class function IfcClassName: String; virtual;

Name for the IFC standard, used in IFC files. By default, this is just ClassName with prefix 'T' removed.

Source: scene/load/ifc/castleifc_ifc_types.inc (line 56).

Protected function WantsGlobalId: Boolean; override;

This item has no description. Showing description inherited from TIfcPersistent.WantsGlobalId.

If True, instances of this class will have GlobalId auto-assigned at saving, and they will be saved as part of the "data" list in IFC JSON files.

Strictly following the spec, this should be only defined for TIfcRoot, because only IfcRoot has GlobalId. In reality, we need GlobalId at TIfcPersistent to load some files, and we sometimes need WantsGlobalId = True to save some files.

Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 1656).

Properties

Published property GlobalId: String read FGlobalId write FGlobalId;

Globally unique identifier for the object instance.

Note: Not declared as TGUID, because TGUID cannot be published, but also we don't really need it: for our purposes, this identifier is just an arbitrary string.

Note: IFC 4.3 specification puts this only at IfcRoot, not at every IFC class. But testcase https://github.com/buildingsmart-community/Community-Sample-Test-Files/blob/main/IFC%204.0.2.1%20(IFC%204)/ISO%20Spec%20archive/wall-with-opening-and-window.json (from IFC 4.0) shows this can be present at any IFC class, in particular TIfcGeometricRepresentationContext.

In fact, TIfcGeometricRepresentationContext needs to have GlobalId to be successfully saved (avoid recursively trying to serialize it) in some cases. We indicate such classes with WantsGlobalId.

IFC JSON documentation says this, which seems to (unfortunately it is not unambiguous enough...) allow this at any IFC class: "Whereas the globalId attribute is only available to those elements that are descendent of the IfcRoot entity in the EXPRESS schema, we encourage a broader use of this globalId, to enable referencing between objects in a JSON file when useful.".

Source: scene/load/ifc/castleifc_ifc_types.inc (line 79).

Published property OwnerHistory: TIfcOwnerHistory read FOwnerHistory write FOwnerHistory;

Information about the current ownership of that object.

Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 1659).

Published property Name: TIfcLabel read FName write FName;

This item has no description.

Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 1661).

Published property Description: TIfcText read FDescription write FDescription;

This item has no description.

Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 1662).

Published property RelatedBuildingElement: TIfcElement read FRelatedBuildingElement write FRelatedBuildingElement;

Reference to the Element that defines the Space Boundaries.

Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 3621).

Published property ConnectionGeometry: TIfcConnectionGeometry read FConnectionGeometry write FConnectionGeometry;

Physical representation of the space boundary. Provided as a curve or surface given within the LCS of the space.

Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 3625).

Published property PhysicalOrVirtualBoundary: TIfcPhysicalOrVirtualEnum read FPhysicalOrVirtualBoundary write FPhysicalOrVirtualBoundary default TIfcPhysicalOrVirtualEnum.NotDefined;

Defines whether the Space Boundary is PHYISICAL or VIRTUAL.

Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 3628).

Published property InternalOrExternalBoundary: TIfcInternalOrExternalEnum read FInternalOrExternalBoundary write FInternalOrExternalBoundary default TIfcInternalOrExternalEnum.NotDefined;

Defines whether the Space Boundary is INTERNAL, or EXTERNAL, i.e. adjacent to open space that can be a partially enclosed space, such as terrace.

Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 3632).


Generated by PasDoc 0.17.0.snapshot.