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