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