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