[IfcSurfaceStyleRendering.TransmissionColour property 传输颜色 public IfcColourOrFactor TransmissionColour { get; set; } 也可以看看 class IfcColourOrFactor class IfcSurfaceStyleRendering 命名空间 Aspose.CAD.FileFormats.Ifc.IFC2X3.Entities 部件 Aspose.CAD]