Class TIfcRepresentationMap
Unit
Declaration
type TIfcRepresentationMap = class(TIfcPersistent)
Description
Base definition (also referred to as block, cell or macro) called MappedRepresentation within the MappingOrigin. The MappingOrigin defines the coordinate system in which the MappedRepresentation is defined.
Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 2194).
Hierarchy
- TObject
- TPersistent
- TComponent
- TIfcPersistent
- TIfcRepresentationMap
Overview
Methods
| Protected | function WantsGlobalId: Boolean; virtual; |
| Protected | class function IfcClassName: String; virtual; |
| Public | constructor Create(AOwner: TComponent); override; |
| Public | destructor Destroy; override; |
Properties
| Published | property GlobalId: String read FGlobalId write FGlobalId; |
| Published | property MappingOrigin: TIfcAxis2Placement read FMappingOrigin write FMappingOrigin; |
| Published | property MappedRepresentation: TIfcRepresentation read FMappedRepresentation write FMappedRepresentation; |
| Published | property HasShapeAspects: TIfcShapeAspectList read FHasShapeAspects; |
| Published | property MapUsage: TIfcMappedItemList read FMapUsage; |
Description
Methods
| Protected | function WantsGlobalId: Boolean; virtual; |
|
This item is declared in ancestor TIfcPersistent.
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; |
|
This item is declared in ancestor TIfcPersistent. Name for the IFC standard, used in IFC files. By default, this is just ClassName with prefix 'T' removed. | |
| Public | constructor Create(AOwner: TComponent); override; |
|
This item has no description. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 2201). | |
| Public | destructor Destroy; override; |
|
This item has no description. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 2202). | |
Properties
| Published | property GlobalId: String read FGlobalId write FGlobalId; |
|
This item is declared in ancestor TIfcPersistent. 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 MappingOrigin: TIfcAxis2Placement read FMappingOrigin write FMappingOrigin; |
|
An axis2 placement that defines the position about which the mapped representation is mapped. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 2206). | |
| Published | property MappedRepresentation: TIfcRepresentation read FMappedRepresentation write FMappedRepresentation; |
|
A representation that is mapped to at least one mapped item. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 2209). | |
| Published | property HasShapeAspects: TIfcShapeAspectList read FHasShapeAspects; |
|
Reference to the shape aspect that represents part of the shape or its feature distinctively. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 2213). | |
| Published | property MapUsage: TIfcMappedItemList read FMapUsage; |
|
This item has no description. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 2215). | |
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