IfcPresentationLayerAssignment

Definition from ISO/CD 10303-46:1992: The presentation layer assignment entity assigns an identifying name and optionally a description to a set of presentation and representation items.

Definition from IAI: The presentation layer assignment provides the layer name (and optionally a description) for a collection of (styled or unstyled) representation items. Visibility and access control and layer style assignment (colour, line style, line width) is handled by the subtype IfcPresentationLayerAssignmentWithStyle.

NOTE: Corresponding STEP name: presentation layer assignment. Please refer to ISO/IS 10303-46:1994, p. 36 for the final definition of the formal standard.

HISTORY: New entity in Release IFC2x 2nd Edition.

EXPRESS specification:

ENTITY IfcPresentationLayerAssignment

SUPERTYPE OF

(IfcPresentationLayerWithStyle);

Name

IfcLabel;

Description

OPTIONAL IfcText;

AssignedItems

SET [1:?] OF IfcLayeredItem;

Identifier

OPTIONAL IfcIdentifier;

END_ENTITY;

Attribute definitions:

Name	:	Name of the layer.
Description	:	Additional description of the layer.
AssignedItems	:	The set of layered items, which are assigned to this layer.
Identifier	:	An (internal) identifier assigned to the layer.

Inheritance graph

ENTITY IfcPresentationLayerAssignment;