[IfcSurfaceStyleRendering.Transparency property 透明度 public IfcNormalisedRatioMeasure Transparency { get; set; } 也可以看看 class IfcNormalisedRatioMeasure class IfcSurfaceStyleRendering 命名空间 Aspose.CAD.FileFormats.Ifc.IFC2X3.Entities 部件 Aspose.CAD]