IfcUniqueDefinitionNames

Semantic definitions at the function

Function Definition

The function gets the set of IfcRelDefinesByProperties. It iterates through the Name attibute of the IfcPropertySet's and verifies that no Name appears twice.

HISTORY New function in IFC4 ADD1

Formal representations

EXPRESS Specification


FUNCTION IfcUniqueDefinitionNames


(Relations : SET [1:?] OF IfcRelDefinesByProperties)
:LOGICAL;

LOCAL
  Definition : IfcPropertySetDefinitionSelect;
  DefinitionSet : IfcPropertySetDefinitionSet;
  Properties : SET OF IfcPropertySetDefinition := [];
  Result : LOGICAL;
END_LOCAL;

IF SIZEOF(Relations) = 0 THEN
  RETURN(TRUE);
END_IF;

REPEAT i:=1 TO HIINDEX(Relations);
  Definition := Relations[i].RelatingPropertyDefinition;
  IF 'IFCKERNEL.IfcPropertySetDefinition' IN TYPEOF(Definition) THEN
    Properties := Properties + Definition;
  ELSE 
    IF 'IFCKERNEL.IfcPropertySetDefinitionSet' IN TYPEOF(Definition) THEN
      BEGIN
        DefinitionSet := Definition;
        REPEAT j:= 1 TO HIINDEX(DefinitionSet);
          Properties := Properties + DefinitionSet[j];
        END_REPEAT;
      END;
	END_IF;
  END_IF;
END_REPEAT;

Result := IfcUniquePropertySetNames(Properties);
RETURN (Result);



END_FUNCTION;