IfcDefinedSymbol

Definition from IAI: A defined symbol is a symbolic representation that gets its shape information by an established convention, either through a predefined symbol, or an externally defined symbol.

> NOTE: The IfcDefinedSymbol is an entity that had been adopted from ISO 10303, Industrial automation systems and integration—Product data representation and exchange, Part 46: Integrated generic resources: Visual presentation.

> NOTE Corresponding STEP name: defined_symbol. The target attribute used the 2d Cartesian transformation operator, including the non-uniform subtype, which is available in IFC (instead of the symbol_target). Please refer to ISO/IS 10303-46:1994 for the final definition of the formal standard.

> HISTORY New entity in Release IFC2x 2nd Edition.

EXPRESS specification:

ENTITY IfcDefinedSymbol
SUBTYPE OF ( | IfcGeometricRepresentationItem);
Definition | : | IfcDefinedSymbolSelect;
Target | : | IfcCartesianTransformationOperator2D;
END_ENTITY;

Attribute definitions:

Definition | : | An implicit description of the symbol, either predefined or externally defined.
Target | : | A description of the placement, orientation and (uniform or non-uniform) scaling of the defined symbol.

Inheritance graph

ENTITY IfcDefinedSymbol;
ENTITY IfcRepresentationItem;
INVERSE
LayerAssignments | : | SET OF IfcPresentationLayerAssignment FOR AssignedItems;
StyledByItem | : | SET [0:1] OF IfcStyledItem FOR Item;
ENTITY IfcGeometricRepresentationItem;
ENTITY IfcDefinedSymbol;
Definition | : | IfcDefinedSymbolSelect;
Target | : | IfcCartesianTransformationOperator2D;
END_ENTITY;