Class TIfcSpatialElement

Fields

Unit

type TIfcSpatialElement = class abstract(TIfcProduct)

Elements that might be used to define a spatial structure.

	`constructor Create(AOwner: TComponent); override;`
	`destructor Destroy; override;`
	`function BuildNode(const Mapping: TCastleIfcMapping): TTransformNode; override;`
	`procedure AddContainedElement(const Element: TIfcElement);`
	`procedure GetContainedElements(const List: TIfcElementList);`

	`property LongName: TIfcLabel read FLongName write FLongName;`
	`property ContainsElements: TIfcRelContainedInSpatialStructureList read FContainsElements;`

	`constructor Create(AOwner: TComponent); override;`
TODO: rest of fields

	`destructor Destroy; override;`
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	`function BuildNode(const Mapping: TCastleIfcMapping): TTransformNode; override;`
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procedure AddContainedElement(const Element: TIfcElement);

Add given Element (TIfcElement, descendant of TIfcProduct) to the ContainsElements list of this spatial element.

This adds an intermediate TIfcRelContainedInSpatialStructure instance, and expands the ContainsElements list of this spatial element, and expands the TIfcElement.ContainedInStructure of the given Element.

It may reuse existing TIfcRelContainedInSpatialStructure instance (BonsaiBIM also does this, using one TIfcRelContainedInSpatialStructure to refer to multiple children).

This should be used to add smaller elements, like TIfcWall, TIfcWindow into larger spatial elements, like TIfcBuildingStorey, TIfcSpace.

procedure GetContainedElements(const List: TIfcElementList);

Add all contained elemenents to the List. This enumerates relations inside ContainsElements and the elements they refer to.

This is not recursive, it does not go into elements that are children of other elements.

	`property LongName: TIfcLabel read FLongName write FLongName;`
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	`property ContainsElements: TIfcRelContainedInSpatialStructureList read FContainsElements;`
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