[IfcSurfaceCurve.Curve3D property Curve3D public IfcCurve Curve3D { get; set; } 也可以看看 class IfcCurve class IfcSurfaceCurve 命名空间 Aspose.CAD.FileFormats.Ifc.IFC4.Entities 部件 Aspose.CAD]
