Furniture

Definition

Furniture is defined through furniture models. The furniture model is a 'abstract' object that captures information about a specific furniture model (Model name, Model ID, manufacturer etc.). The actual instances of furniture reference a furniture model and this tells us the type of the furniture. The catalog name can be used to store the catalog URL information. The document reference system in IFC could also be used for this purpose, but this is a simpler solution.

Because it is sometimes useful to design schematic furniture before the model and manufacturer are known we can use a 'generic' furniture model and a 'generic' furniture manufacturer in the model. If there is generic furniture in the model there should be one instance of the generic furniture model and one instance of generic furniture manufacturer that the instances of generic furniture can reference.

Geometry

Geometry type	Extrusion	Profile	Segments	Clipped	Slanted
BoundingBox
Brep
2D Geometry

• Furniture does not have any geometry use definitions, and consequently the geometry does not have any semantics. The geometry is purely for representation purposes.
• As the basic representation the bounding box should be provided.
• Brep geometry may be used for the 3D representation
• 2D geometry may be used for the symbolic 2D representation.

View considerations

• Arch. design >> Quantities take off / cost estimating
  • Count
  • Type
  • Containing space

Documents

• IFCR2_Label_000331_jh.pdf

Used by views

• Arch. design >> Quantities take off

Data structure

IfcFurniture
GlobalId
OwnerHistory
Owner history [all]
Label
UserDefinedType
PartOfGroups
Grouping [1,2]
IsContainedBy
Containment [all]
RelatingObject
Space [all]
Building storey [all]
LocalPlacement
Relative placement [all]
PlacementRelTo
Building storey [all]
Representations
Geometric representation [all]
Items
Bounding box geometry [all]
Brep geometry [3,5]
2D geometry [1,5]
Classification
Classification assignment [none]
Classifications
Classification [none]
PredefinedType
IfcFurnitureTypeEnum
Table
Chair
Desk
FileCabinet
UserDefined
NotDefined
FurnitureModel
IfcFurnitureModel
GlobalId
OwnerHistory
Owner history [all]
ModelID
ModelName
Manufacturer
IfcOrganization
Name
CatalogName
Options

Uses concepts

2D geometry [1,5]
Bounding box geometry [all]
Brep geometry [3,5]
Building storey [all]
Classification [none]
Classification assignment [none]
Containment [all]
Geometric representation [all]
Grouping [1,2]
Owner history [all]
Relative placement [all]
Space [all]

Used by concepts

Building storey
Space

Copyright © 2000-2002 BLIS-Project [BLIS, Registered Organization]
Author: Jiri Hietanen (jiri@blis-project.org)
All rights reserved.