Hello, hopefully my question is in the right place.
I am writing a C++ program that creates an Iges file of various linear path entities (type 106) and NURBs surfaces (type 128). In an Iges file you can define a level function (type 406) and in Rhino you can nest layers in each other.
My question: Does Rhino have a way I can define a layer in an Iges file using type 406 and then define sub-layers to the original?
If I open an Iges file in Rhino and manually create a sub-layer by drag-n-drop and re-save the file as an Igs file it will not reopen with the appropriate sub-layers. It just gives them a different name…
Thanks for any help!