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. It provides the means to store several representation maps for different purposes. In order to utilze the representation map at each occurrence of the product type, the product occurrence has to use the concept 'Mapped Geometry'.
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.