[IfcRelSpaceBoundary1stLevel.ParentBoundary property ParentBoundary public IfcRelSpaceBoundary1stLevel ParentBoundary { get; set; } 也可以看看 class IfcRelSpaceBoundary1stLevel 命名空间 Aspose.CAD.FileFormats.Ifc.IFC4.Entities 部件 Aspose.CAD]
