22.214.171.124.1 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.
- A mapped item shall not be self-defining by participating in the definition of the representation being mapped.
- The dimensionality of the mapping source and the mapping target has to be the same, if the mapping source is a geometric representation item.
126.96.36.199.2 Entity inheritance
|LayerAssignment||SET [0:1] OF IfcPresentationLayerAssignment FOR AssignedItems||
Assignment of the representation item to a single or multiple layer(s). The LayerAssignments can override a LayerAssignments of the IfcRepresentation it is used within the list of Items.
|StyledByItem||SET [0:1] OF IfcStyledItem FOR Item||
Reference to the IfcStyledItem that provides presentation information to the representation, e.g. a curve style, including colour and thickness to a geometric curve.
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A representation map that is the source of the mapped item. It can be seen as a block (or cell or marco) definition.
A representation item that is the target onto which the mapping source is mapped. It is constraint to be a Cartesian transformation operator.
188.8.131.52.4 Formal representation
ENTITY IfcMappedItem SUBTYPE OF (IfcRepresentationItem); MappingSource : IfcRepresentationMap; MappingTarget : IfcCartesianTransformationOperator; END_ENTITY;