--- title: "Object Settings for Curves and Surfaces" url: "https://help.maxon.net/c4d/en-us/Content/html/12486.html" section_path: "Configuration > Preferences > Import/Export > DWG Import > Object Settings for Curves and Surfaces" description: "The Object icons only differ slightly: Objects whose Object icons have a dark outline are primitive curves and surfaces. The shape of the trimmed surface …" --- # Object Settings for Curves and Surfaces > **Tip:** Tip:The IGES objects described in the following will appear, among other places, with an imported \*.dwg file. The reason is that old IGES importers (which have been replaced in the meantime) that were used in previous Cinema 4D versions are used to interpret NURBS. ![Image: 013563.jpg](https://help.maxon.net/c4d/en-us/Content/Resources/Images/013563.jpg)\ Import with Generator objects | | | | --- | --- | | | | The Object icons only differ slightly: Objects whose Object icons have a dark outline are primitive curves and surfaces. The shape of the trimmed surface is derived from the **Child** objects.