IFC 4.3.0.1 (IFC4X3) development

# 8.9.3.39 IfcMappedItem

## 8.9.3.39.1 Semantic definition

The IfcMappedItem is the inserted instance of a source definition (to be compared with a block / shared cell / macro definition). The instance is inserted by applying a Cartesian transformation operator as the MappingTarget.

Informal Propositions:

1. A mapped item shall not be self-defining by participating in the definition of the representation being mapped.
2. The dimensionality of the mapping source and the mapping target has to be the same, if the mapping source is a geometric representation item.

## 8.9.3.39.4 Formal representation

ENTITY IfcMappedItem
SUBTYPE OF (IfcRepresentationItem);
MappingSource : IfcRepresentationMap;
MappingTarget : IfcCartesianTransformationOperator;
END_ENTITY;