[IfcRelAssociatesConstraint.RelatingConstraint property RelatingConstraint public IfcConstraint RelatingConstraint { get; set; } 也可以看看 class IfcConstraint class IfcRelAssociatesConstraint 命名空间 Aspose.CAD.FileFormats.Ifc.IFC2X3.Entities 部件 Aspose.CAD]
