4.9.1 Product Type Geometric Representation
Product types may have representations indicating shape representation for geometry, clearance, or other concepts.
The shape representation attached to a type is defined using the relationship RepresentationMaps of data type IfcRepresentationMap
NOTE See IfcTypeProduct
The following diagram shows the generic classes and relationships used when applying this concept.
In addition, concepts may have particular importance to common or standardised industry practices and scenarios. For these specific usage scenarios, the tables below shows a recommended list of general usage patterns that users may adopt.
G
<a href="IfcTypeProduct.htm" tppabs="https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/lexical/IfcTypeProduct.htm">IfcTypeProduct</a>
IfcTypeProduct GlobalId
[1:1]
OwnerHistory
[0:1]
Name
[0:1]
Description
[0:1]
HasAssignments
[0:?]
Nests
[0:1]
IsNestedBy
[0:?]
HasContext
[0:1]
IsDecomposedBy
[0:?]
Decomposes
[0:1]
HasAssociations
[0:?]
ApplicableOccurrence
[0:1]
HasPropertySets
[1:?]
Types
[0:1]
RepresentationMaps
[1:?]
Tag
[0:1]
ReferencedBy
[0:?]
<a href="IfcRepresentationMap.htm" tppabs="https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/lexical/IfcRepresentationMap.htm">IfcRepresentationMap</a>
IfcRepresentationMap MappingOrigin
[1:1]
MappedRepresentation
[1:1]
HasShapeAspects
[0:?]
MapUsage
[0:?]
<a href="IfcTypeProduct.htm" tppabs="https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/lexical/IfcTypeProduct.htm">IfcTypeProduct</a>:RepresentationMaps1-><a href="IfcRepresentationMap.htm" tppabs="https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/lexical/IfcRepresentationMap.htm">IfcRepresentationMap</a>:IfcRepresentationMap0
<a href="IfcShapeRepresentation.htm" tppabs="https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/lexical/IfcShapeRepresentation.htm">IfcShapeRepresentation</a>
IfcShapeRepresentation ContextOfItems
[1:1]
RepresentationIdentifier
[0:1]
RepresentationType
[0:1]
Items
[1:?]
RepresentationMap
[0:1]
LayerAssignments
[0:?]
OfProductRepresentation
[0:?]
OfShapeAspect
[0:1]
<a href="IfcRepresentationMap.htm" tppabs="https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/lexical/IfcRepresentationMap.htm">IfcRepresentationMap</a>:MappedRepresentation1-><a href="IfcShapeRepresentation.htm" tppabs="https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/lexical/IfcShapeRepresentation.htm">IfcShapeRepresentation</a>:IfcShapeRepresentation0
<a href="IfcAxis2Placement2D.htm" tppabs="https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/lexical/IfcAxis2Placement2D.htm">IfcAxis2Placement2D</a>
IfcAxis2Placement2D LayerAssignment
[0:1]
StyledByItem
[0:1]
Location
[1:1]
RefDirection
[0:1]
<a href="IfcRepresentationMap.htm" tppabs="https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/lexical/IfcRepresentationMap.htm">IfcRepresentationMap</a>:MappingOrigin1-><a href="IfcAxis2Placement2D.htm" tppabs="https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/lexical/IfcAxis2Placement2D.htm">IfcAxis2Placement2D</a>:IfcAxis2Placement2D0
<a href="IfcAxis2Placement3D.htm" tppabs="https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/lexical/IfcAxis2Placement3D.htm">IfcAxis2Placement3D</a>
IfcAxis2Placement3D LayerAssignment
[0:1]
StyledByItem
[0:1]
Location
[1:1]
Axis
[0:1]
RefDirection
[0:1]
<a href="IfcRepresentationMap.htm" tppabs="https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/lexical/IfcRepresentationMap.htm">IfcRepresentationMap</a>:MappingOrigin1-><a href="IfcAxis2Placement3D.htm" tppabs="https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/lexical/IfcAxis2Placement3D.htm">IfcAxis2Placement3D</a>:IfcAxis2Placement3D0
Figure 4.9.1.A Table 4.9.1.B