Namespace Xbim.Ifc4.PresentationDefinitionResource Classes IfcAnnotationFillArea IfcPlanarBox IfcPlanarExtent IfcPresentationItem IfcTextLiteral IfcTextLiteralWithExtent Structs IfcBoxAlignment Enums IfcBoxAlignment.IfcBoxAlignmentClause IfcTextLiteralWithExtent.IfcTextLiteralWithExtentClause