[IfcStructuralSurfaceMember.PredefinedType property PredefinedType public IfcStructuralSurfaceTypeEnum PredefinedType { get; set; } 也可以看看 enum IfcStructuralSurfaceTypeEnum class IfcStructuralSurfaceMember 命名空间 Aspose.CAD.FileFormats.Ifc.IFC2X3.Entities 部件 Aspose.CAD]
