Class TIfcRelProjectsElement
Unit
Declaration
type TIfcRelProjectsElement = class(TIfcRelDecomposes)
Description
Relationship between an element and one projection element that creates a modifier to the shape of the element.
Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 3557).
Hierarchy
- TObject
- TPersistent
- TComponent
- TIfcPersistent
- TIfcRoot
- TIfcRelationship
- TIfcRelDecomposes
- TIfcRelProjectsElement
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 RelatingElement: TIfcElement read FRelatingElement write FRelatingElement; |
| Published | property RelatedFeatureElement: TIfcFeatureElementAddition read FRelatedFeatureElement write FRelatedFeatureElement; |
Description
Methods
| Protected | function WantsGlobalId: Boolean; virtual; |
|
If 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 | |
| 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. | |
| Protected | function WantsGlobalId: Boolean; override; |
|
This item has no description. Showing description inherited from TIfcPersistent.WantsGlobalId.
If 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 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 IFC JSON documentation says this, which seems to (unfortunately it is not unambiguous enough...) allow this at any IFC class: "Whereas the | |
| 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 RelatingElement: TIfcElement read FRelatingElement write FRelatingElement; |
|
Element at which a projection is created by the associated IfcProjectionElement. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 3563). | |
| Published | property RelatedFeatureElement: TIfcFeatureElementAddition read FRelatedFeatureElement write FRelatedFeatureElement; |
|
Reference to the IfcFeatureElementAddition that defines an addition to the volume of the element, by using a Boolean addition operation. An example is a projection at the associated element. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 3568). | |
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