[IfcArbitraryClosedProfileDef.OuterCurve property 外曲线 public IfcCurve OuterCurve { get; set; } 也可以看看 class IfcCurve class IfcArbitraryClosedProfileDef 命名空间 Aspose.CAD.FileFormats.Ifc.IFC4.Entities 部件 Aspose.CAD]
