Class TIfcObjectDefinition

Fields

Unit

type TIfcObjectDefinition = class abstract(TIfcDefinitionSelect)

Any semantically treated thing or process.

	`constructor Create(AOwner: TComponent); override;`
	`destructor Destroy; override;`
	`function BuildNode(const Mapping: TCastleIfcMapping): TTransformNode; virtual;`
	`procedure AddIsDecomposedBy(const ChildObject: TIfcObjectDefinition);`

	`property HasContext: TIfcRelDeclares read FHasContext write FHasContext;`
	`property IsDecomposedBy: TIfcRelAggregatesList read FIsDecomposedBy;`
	`property Decomposes: TIfcRelAggregatesList read FDecomposes;`
	`property HasAssociations: TIfcRelAssociatesList read FHasAssociations;`

	`constructor Create(AOwner: TComponent); override;`
This item has no description.

	`destructor Destroy; override;`
This item has no description.

	`function BuildNode(const Mapping: TCastleIfcMapping): TTransformNode; virtual;`
This item has no description.

procedure AddIsDecomposedBy(const ChildObject: TIfcObjectDefinition);

Add given TIfcObjectDefinition instance to the IsDecomposedBy list of this object. Adds also new intermediate TIfcRelAggregates instance.

This shall be used to add top-level IfcSpatialStructureElement instances to the project, e.g.:

	`property HasContext: TIfcRelDeclares read FHasContext write FHasContext;`
References to the context providing context information such as project unit or representation context. It should only be asserted for the uppermost non-spatial object.

	`property IsDecomposedBy: TIfcRelAggregatesList read FIsDecomposedBy;`
References to the decomposition relationship being an aggregation.

	`property Decomposes: TIfcRelAggregatesList read FDecomposes;`
References to the decomposition relationship being an aggregation.

	`property HasAssociations: TIfcRelAssociatesList read FHasAssociations;`
Reference to the relationship objects, that associates external references or other resource definitions to the object. Examples are the association to library, documentation or classification.

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