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